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Hollborn H, Lachmann C, Strüder D, van Bonn SM, Mlynski R, Schraven SP. Rise in complications of acute otitis media during and after the COVID-19 pandemic. Eur Arch Otorhinolaryngol 2024:10.1007/s00405-024-08647-4. [PMID: 38709319 DOI: 10.1007/s00405-024-08647-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 03/28/2024] [Indexed: 05/07/2024]
Abstract
PURPOSE After the lifting of nonpharmaceutical interventions (NPIs) during the COVID-19 pandemic, clinical observation showed an increase in complications of acute otitis, followed by a rise in the number of mastoidectomies performed. The aim of this study was to record the number of mastoidectomies performed before, during and after the COVID-19 pandemic as an indicator for complications of acute otitis media. METHODS Data were collected from a tertiary hospital in a university setting, as well as from four major public health insurance companies in Germany. The data of 24,824,763 German citizens during a period from 2014 until 2023 were analyzed. RESULTS According to the data, during the COVID-19 pandemic, the number of mastoidectomies performed dropped by 54% for children aged 0-6 and by 62% for children aged 7-18. For adults, there were 30% fewer mastoidectomies performed between 2020 and 2022. After the lifting of most NPI's in the season from July 2022 to June 2023, there was a sharp increase in the number of mastoidectomies performed on patients of all ages. CONCLUSIONS During the COVID-19 pandemic, a decrease in the number of mastoidectomies performed was seen, suggesting a lower incidence of complicated acute otitis, most likely linked to the general decrease of upper airway infections due to NPI's. In contrast, a sharp increase in the incidence of complicated otitis occurred after the hygiene measures were lifted. The current development causes a more frequent performance of mastoidectomies, thus entailing a change in the challenges for everyday clinical practice.
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Affiliation(s)
- Hannes Hollborn
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Straße 137-139, 18057, Rostock, Germany.
| | - Christoph Lachmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Aachen University Medical Center, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Daniel Strüder
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Straße 137-139, 18057, Rostock, Germany
| | - Sara M van Bonn
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Straße 137-139, 18057, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Straße 137-139, 18057, Rostock, Germany
| | - Sebastian P Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery, Aachen University Medical Center, Pauwelsstraße 30, 52074, Aachen, Germany
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Schmidt FH, Dörmann A, Ehrt K, Grossmann W, Mlynski R, Zhang L. The curvature quantification of wave I in auditory brainstem responses detects cochlear synaptopathy in human beings. Eur Arch Otorhinolaryngol 2024:10.1007/s00405-024-08699-6. [PMID: 38703194 DOI: 10.1007/s00405-024-08699-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/18/2024] [Indexed: 05/06/2024]
Abstract
PURPOSE Patients with age-related hearing loss complain often about reduced speech perception in adverse listening environment. Studies on animals have suggested that cochlear synaptopathy may be one of the primary mechanisms responsible for this phenomenon. A decreased wave I amplitude in supra-threshold auditory brainstem response (ABR) can diagnose this pathology non-invasively. However, the interpretation of the wave I amplitude in humans remains controversial. Recent studies in mice have established a robust and reliable mathematic algorithm, i.e., curve curvature quantification, for detecting cochlear synaptopathy. This study aimed to determine whether the curve curvature has sufficient test-retest reliability to detect cochlear synaptopathy in aging humans. METHODS Healthy participants were recruited into this prospective study. All subjects underwent an audiogram examination with standard and extended high frequencies ranging from 0.125 to 16 kHz and an ABR with a stimulus of 80 dB nHL click. The peak amplitude, peak latency, curvature at the peak, and the area under the curve of wave I were calculated and analyzed. RESULTS A total of 80 individuals with normal hearing, aged 18 to 61 years, participated in this study, with a mean age of 26.4 years. Pearson correlation analysis showed a significant negative correlation between curvature and age, as well as between curvature and extended high frequency (EHF) threshold (10-16 kHz). Additionally, the same correlation was observed between age and area as well as age and EHF threshold. The model comparison demonstrated that the curvature at the peak of wave I is the best metric to correlate with EHF threshold. CONCLUSION The curvature at the peak of wave I is the most sensitive metric for detecting cochlear synaptopathy in humans and may be applied in routine diagnostics to detect early degenerations of the auditory nerve.
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Affiliation(s)
- Florian Herrmann Schmidt
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner, Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Alexander Dörmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner, Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Karsten Ehrt
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner, Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Wilma Grossmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner, Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner, Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Lichun Zhang
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner, Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.
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van Bonn SM, Grajek JS, Rettschlag S, Schraven SP, Mlynski R. [Interactive electronic visualization formats in student teaching]. HNO 2024; 72:341-349. [PMID: 38393668 PMCID: PMC11045576 DOI: 10.1007/s00106-024-01436-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND In the context of contact restrictions, conventional teaching is currently in need of optimization and expansion. The range of digital teaching formats in student training is very heterogeneous and their effectiveness uncertain. This study aims to investigate the extent to which an electronic ward round can be used as an alternative to the conventional ENT attendance practical course, and whether the use of electronic teaching formats has an influence on the quality of teaching. MATERIALS AND METHODS Instead of regular attendance practicals, bedside teaching took place once a week in real time as a video stream via tablet. A total of 43 students in the seventh semester (winter semester 2020/2021) were included in the prospective study. Evaluation forms were used to examine the subjective didactic value of different visualization formats for the students. Examination results from previous years were used for comparison. RESULTS The majority of students reported knowledge gain from the electronic rounds (93.02%) and that they were a good alternative to the traditional attendance clerkship (69.77%). The quality of the video and audio transmission as well as the comprehensibility of the case studies presented were consistently rated as good to very good. The students' examination results tended to be slightly worse in the test group compared to the control students of previous years. CONCLUSION Integration of innovative interactive visualization options into teaching shows promising prospects as a supplement to conventional face-to-face teaching. The results of this study can contribute to the further expansion of digital teaching. Scaling up this model could be considered especially in countries with limited availability of face-to-face teaching.
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Affiliation(s)
- Sara M van Bonn
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137, 18057, Rostock, Deutschland.
| | - Jan S Grajek
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137, 18057, Rostock, Deutschland
| | - Stefanie Rettschlag
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137, 18057, Rostock, Deutschland
| | - Sebastian P Schraven
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137, 18057, Rostock, Deutschland
| | - Robert Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137, 18057, Rostock, Deutschland
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4
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Grajek JS, Rettschlag S, Schneider A, Schraven SP, Mlynski R, van Bonn SM. [Multidimensional formats of surgical anatomy in otorhinolaryngology student teaching-a comparison of effectivity]. HNO 2024; 72:357-366. [PMID: 38324064 PMCID: PMC11045569 DOI: 10.1007/s00106-024-01427-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND Technological change in healthcare and the digital transformation of teaching require innovations in student teaching in medicine. New technologies are needed to enable the delivery and use of diverse teaching and learning formats by educational institutions independent of time and place. The aim of this study is to analyze the effectiveness of different multidimensional formats in student teaching in surgical ENT medical anatomy. MATERIALS AND METHODS During the summer semester 2022 and winter semester 2022/2023, the digital teaching and learning program was expanded by testing different visualization formats (3D glasses, cardboards, or VR glasses) with students in the context of a highly standardized surgical procedure, namely cochlear implantation. A pre- and post-intervention knowledge assessment was carried out in all groups, followed by an evaluation. RESULTS Of 183 students, 91 students fully participated in the study. The post-intervention knowledge assessment showed a significant increase in correct answers regardless of visualization format. In a direct comparison, the operating room (OR) group answered correctly significantly more often than the cardboard group (p = 0.0424). The majority of students would like to see 3D teaching as an integral part of the teaching program (87.9%) and more streaming of live surgeries (93.4%). They see the use of the various technologies as a very good addition to conventional surgical teaching (72.5%), as good visualization (89%) increases retention (74.7%) and motivation (81.3%). CONCLUSION Application and use of new visualization technologies in everyday clinical practice is a promising approach to expanding student training. Mobile, interactive, and personalized technical formats can be adapted to the learning behavior of students. Last but not least, the use of new media influences learning motivation. An expansion of digital teaching and learning formats can be expressly recommended on the basis of this study.
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Affiliation(s)
- Jan S Grajek
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137, 18057, Rostock, Deutschland
| | - Stefanie Rettschlag
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137, 18057, Rostock, Deutschland
| | - Armin Schneider
- Jade Hochschule, Fachbereich Ingenieurwissenschaften, Friedrich-Paffrath-Str. 101, 26389, Wilhelmshaven, Deutschland
| | - Sebastian P Schraven
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137, 18057, Rostock, Deutschland
| | - Robert Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137, 18057, Rostock, Deutschland
| | - Sara M van Bonn
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137, 18057, Rostock, Deutschland.
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Zhang L, Schmidt FH, Oberhoffner T, Ehrt K, Cantré D, Großmann W, Schraven SP, Mlynski R. Transimpedance Matrix Can Be Used to Estimate Electrode Positions Intraoperatively and to Monitor Their Positional Changes Postoperatively in Cochlear Implant Patients. Otol Neurotol 2024; 45:e289-e296. [PMID: 38346796 DOI: 10.1097/mao.0000000000004145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
OBJECTIVE Accurate positioning of the electrode array during cochlear implant (CI) surgery is crucial for achieving optimal hearing outcomes. Traditionally, postoperative radiological imaging has been used to assess electrode position. Transimpedance matrix (TIM) measurements have also emerged as a promising method for assessing electrode position. This involves utilizing electric field imaging to create an electric distance matrix by analyzing voltage variations among adjacent electrodes. This study aimed to investigate the feasibility of using intraoperative TIM measurements to estimate electrode position and monitor postoperative changes. STUDY DESIGN Retrospective cohort study. SETTING University Medical center, tertiary academic referral center. PATIENTS Patients undergoing CI (CI622) surgery between January 2019 and June 2022. INTERVENTION CI electrode positions and maximal angular insertion depths (maxAID) were determined using X-ray imaging according to Stenvers' projection. The mean gradient phase (MGP) was extracted from the TIM, and a correlation between the MGP and maxAID was examined. A model was then built to estimate the maxAID using the MGP, and changes in electrode location over time were assessed using this model. MAIN OUTCOME MEASURES Twenty-four patients were included in this study. A positive correlation between the maxAID and the MGP ( R = 0.7, p = 0.0001) was found. The established model was able to predict the maxAID with an accuracy of 27.7 ± 4.4°. Comparing intraoperative and postoperative TIM measurements, a decrease of 24.1° ± 10.7° in maxAID over time was observed. CONCLUSION TIM measurements are useful for estimating the insertion depth of the electrode and monitoring changes in the electrode's position over time.
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Affiliation(s)
- Lichun Zhang
- Departments of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner,"
| | | | - Tobias Oberhoffner
- Departments of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner,"
| | - Karsten Ehrt
- Departments of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner,"
| | - Daniel Cantré
- Radiology, Rostock University Medical Center, Rostock, Germany
| | - Wilma Großmann
- Departments of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner,"
| | | | - Robert Mlynski
- Departments of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner,"
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6
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Oberhoffner T, Mlynski R, Schraven S, Brademann G, Dierker A, Spitzer P, Hey M. Effects of Intraoperative Cochlear Implant Electrode Conditioning on Impedances and Electrically Evoked Compound Action Potentials. IEEE Trans Biomed Eng 2024; 71:650-659. [PMID: 37682654 DOI: 10.1109/tbme.2023.3313198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
OBJECTIVE The current study investigates whether, during a Cochlear Implant (CI) surgery, conditioning (i.e. applying short bursts of electrical stimulation) within a saline solution can have positive effects on subsequent intra-operative measurements. We hypothesize that, based on previous research, the impedance values will be reduced, and that the reproducibility of Electrically Evoked Compound Action Potentials (ECAPs) is improved as a result of conditioning. METHODS We conditioned half of the electrode contacts, within a saline solution, before CI insertion, using 23 MED-EL implants. Impedance was measured for both the conditioned and non-conditioned groups at five time points. Repeated ECAP recordings were measured and compared between the conditioned and non-conditioned groups. RESULTS Impedance of the electrode contacts were reduced by 31% after conditioning in saline solution; however, there were no clinically relevant differences after the implantation of the electrode array. The hypothesis that measurement reproducibility would be increased after conditioning could not be confirmed with our data. Within the saline solution, we observed that 44% of the electrode contacts were covered with air bubbles, which most disappeared after implantation. However, these air bubbles limited the effectiveness of the conditioning within the saline solution. Lastly, the effect of conditioning on the reference electrode stimulation was approximately 16% of the total reduction in impedance. CONCLUSION Our data does not suggest that intraoperative conditioning is clinically required for cochlear implantation with MED-EL implants. Additionally, an in-vivo ECAP recording can be considered as a method of conditioning the electrode contacts. SIGNIFICANCE We confirm that the common clinical practice does not need to be changed.
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7
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Schmidt FH, Hocke T, Zhang L, Großmann W, Mlynski R. Tone Decay Reconsidered: Preliminary Results of a Prospective Study in Hearing-Aid Users with Moderate to Severe Hearing Loss. J Clin Med 2024; 13:500. [PMID: 38256634 PMCID: PMC10816404 DOI: 10.3390/jcm13020500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Among hearing aid (HA) users, there is a considerable variability in word recognition scores (WRSs). This variability is most pronounced among individuals with moderately severe to severe hearing loss. The variability cannot be adequately explained by factors such as pure-tone audiogram, audiogram type or age. This prospective study was designed to investigate the relationship between tone decay (TD) and WRS in a group of HA users with corresponding pure-tone hearing loss. The study population included 22 patients with hearing loss between 50 and 80 dB HL. Aided WRS, unaided WRS and TD were assessed for both ears. TD was found to be frequency-dependent. TD and WRS were correlated, with up to R = -0.66. The TD test was revealed to be a feasible method for explaining variability in WRS among HA users with hearing loss below 80 dB. This may contribute to improved differential diagnostics. The TD test may thus offer a better understanding of the limitations of HA use in the context of cochlear implant candidacy assessment for HA users.
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Affiliation(s)
- Florian Herrmann Schmidt
- Department of Otorhinolaryngology, Head and Neck Surgery, ‘Otto Körner’, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany; (L.Z.); (W.G.); (R.M.)
| | - Thomas Hocke
- Cochlear Deutschland GmbH & Co. KG, Karl-Wiechert-Allee 76, 30625 Hannover, Germany;
| | - Lichun Zhang
- Department of Otorhinolaryngology, Head and Neck Surgery, ‘Otto Körner’, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany; (L.Z.); (W.G.); (R.M.)
| | - Wilma Großmann
- Department of Otorhinolaryngology, Head and Neck Surgery, ‘Otto Körner’, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany; (L.Z.); (W.G.); (R.M.)
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, ‘Otto Körner’, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany; (L.Z.); (W.G.); (R.M.)
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8
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Weiss NM, Breitsprecher T, Wozniak M, Bächinger D, Völter C, Mlynski R, Van de Heyning P, Van Rompaey V, Dazert S. Comparing linear and non-linear models to estimate the appropriate cochlear implant electrode array length-are current methods precise enough? Eur Arch Otorhinolaryngol 2024; 281:43-49. [PMID: 37466660 PMCID: PMC10764384 DOI: 10.1007/s00405-023-08064-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/09/2023] [Indexed: 07/20/2023]
Abstract
PURPOSE In cochlear implantation with flexible lateral wall electrode arrays, a cochlear coverage (CC) range between 70% and 80% is considered ideal for optimal speech perception. To achieve this CC, the cochlear implant (CI) electrode array has to be chosen according to the individual cochlear duct length (CDL). Here, we mathematically analyzed the suitability of different flexible lateral wall electrode array lengths covering between 70% and 80% of the CDL. METHODS In a retrospective cross-sectional study preoperative high-resolution computed tomography (HRCT) from patients undergoing cochlear implantation was investigated. The CDL was estimated using an otosurgical planning software and the CI electrode array lengths covering 70-80% of the CDL was calculated using (i) linear and (ii) non-linear models. RESULTS The analysis of 120 HRCT data sets showed significantly different model-dependent CDL. Significant differences between the CC of 70% assessed from linear and non-linear models (mean difference: 2.5 mm, p < 0.001) and the CC of 80% assessed from linear and non-linear models (mean difference: 1.5 mm, p < 0.001) were found. In up to 25% of the patients none of the existing flexible lateral wall electrode arrays fit into this range. In 59 cases (49,2%) the models did not agree on the suitable electrode arrays. CONCLUSIONS The CC varies depending on the underlying CDL approximation, which critically influences electrode array choice. Based on the literature, we hypothesize that the non-linear method systematically overestimates the CC and may lead to rather too short electrode array choices. Future studies need to assess the accuracy of the individual mathematical models.
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Affiliation(s)
- Nora M Weiss
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany.
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.
- International Graduate School of Neuroscience (IGSN), Ruhr-University Bochum, Bochum, Germany.
| | - Tabita Breitsprecher
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
| | - Martin Wozniak
- MED-EL Elektromedizinische Geräte Deutschland GmbH, Starnberg, Deutschland
| | - David Bächinger
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
| | - Christiane Völter
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", University, Rostock, Germany
| | - Paul Van de Heyning
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head & Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Vincent Van Rompaey
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head & Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Stefan Dazert
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
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9
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Strüder D, Ebert J, Kalle F, Schraven SP, Eichhorst L, Mlynski R, Großmann W. Head and Neck Cancer: A Study on the Complex Relationship between QoL and Swallowing Function. Curr Oncol 2023; 30:10336-10350. [PMID: 38132387 PMCID: PMC10742452 DOI: 10.3390/curroncol30120753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is linked to significant morbidity, adversely affecting survival and functional capacity. Post-treatment challenges such as pain, dysphonia, and dysphagia are common, prompting increased attention in survivorship research. Quality of Life (QoL) questionnaires, especially the MD Anderson Dysphagia Inventory (MDADI), are prevalent outcome measures in clinical studies but often lack parallel objective swallowing function evaluations, leading to potential outcome discrepancies. This study aimed to illuminate the relationship between subjective QoL (EQ-5D-5L and MDADI) measures and objective swallowing function (evaluated via Fiberoptic Endoscopic Evaluation of Swallowing, FEES) in patients with HNSCC. The analysis revealed a notable discordance between objective measures of swallowing function, such as the Penetration-Aspiration Scale (PAS) and residue ratings in the vallecula or piriform sinus, and patients' subjective QoL assessments (p = 0.21). Despite the lack of correlation, swallowing-related QoL, as measured by the MDADI, was more indicative of disease severity than generic QoL assessments. Generic QoL scores did not demonstrate substantial variation between patients. In contrast, MDADI scores significantly declined with advancing tumor stage, multimodal therapy, and reliance on feeding tubes. However, the clinical significance of this finding was tempered by the less than 10-point difference in MDADI scores. The findings of this study underline the limitations of QoL measures as standalone assessments in patients with HNSCC, given their reliance on patient-perceived impairment. While subjective QoL is a crucial aspect of evaluating therapeutic success and patient-centric outcomes, it may fail to capture critical clinical details such as silent aspirations. Consequently, QoL assessments should be augmented by objective evaluations of swallowing function in clinical research and practice to ensure a holistic understanding of patient well-being and treatment impact.
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Affiliation(s)
- Daniel Strüder
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, D-18057 Rostock, Germany; (J.E.); (F.K.); (L.E.); (R.M.); (W.G.)
| | - Johanna Ebert
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, D-18057 Rostock, Germany; (J.E.); (F.K.); (L.E.); (R.M.); (W.G.)
| | - Friederike Kalle
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, D-18057 Rostock, Germany; (J.E.); (F.K.); (L.E.); (R.M.); (W.G.)
| | - Sebastian P. Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery, RWTH Aachen University Hospital, D-52074 Aachen, Germany;
| | - Lennart Eichhorst
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, D-18057 Rostock, Germany; (J.E.); (F.K.); (L.E.); (R.M.); (W.G.)
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, D-18057 Rostock, Germany; (J.E.); (F.K.); (L.E.); (R.M.); (W.G.)
| | - Wilma Großmann
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, D-18057 Rostock, Germany; (J.E.); (F.K.); (L.E.); (R.M.); (W.G.)
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10
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Breitsprecher TM, Baumgartner WD, Brown K, Dazert S, Doyle U, Dhanasingh A, Großmann W, Hagen R, Van de Heyning P, Mlynski R, Neudert M, Rajan G, Rak K, Van Rompaey V, Schmutzhard J, Volkenstein S, Völter C, Wimmer W, Zernotti M, Weiss NM. Effect of Cochlear Implant Electrode Insertion Depth on Speech Perception Outcomes: A Systematic Review. Otol Neurotol Open 2023; 3:e045. [PMID: 38516541 PMCID: PMC10950166 DOI: 10.1097/ono.0000000000000045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/29/2023] [Indexed: 03/23/2024]
Abstract
Objective The suitable electrode array choice is broadly discussed in cochlear implantation surgery. Whether to use a shorter electrode length under the aim of structure preservation versus choosing a longer array to achieve a greater cochlear coverage is a matter of debate. The aim of this review is to identify the impact of the insertion depth of a cochlear implant (CI) electrode array on CI users' speech perception outcomes. Databases Reviewed PubMed was searched for English-language articles that were published in a peer-reviewed journal from 1997 to 2022. Methods A systematic electronic search of the literature was carried out using PubMed to find relevant literature on the impact of insertion depth on speech perception. The review was conducted according to the preferred reporting items for systematic reviews and meta-analyses guidelines of reporting. Studies in both, children and adults with pre- or postlingual hearing loss, implanted with a CI were included in this study. Articles written in languages other than English, literature reviews, meta-analyses, animal studies, histopathological studies, or studies pertaining exclusively to imaging modalities without reporting correlations between insertion depth and speech outcomes were excluded. The risk of bias was determined using the "Risk of Bias in Nonrandomized Studies of Interventions" tool. Articles were extracted by 2 authors independently using predefined search terms. The titles and abstracts were screened manually to identify studies that potentially meet the inclusion criteria. The extracted information included: the study population, type of hearing loss, outcomes reported, devices used, speech perception outcomes, insertion depth (linear insertion depth and/or the angular insertion depth), and correlation between insertion depth and the speech perception outcomes. Results A total of 215 relevant studies were assessed for eligibility. Twenty-three studies met the inclusion criteria and were analyzed further. Seven studies found no significant correlation between insertion depth and speech perception outcomes. Fifteen found either a significant positive correlation or a positive effect between insertion depth and speech perception. Only 1 study found a significant negative correlation between insertion depth and speech perception outcomes. Conclusion Although most studies reported a positive effect of insertion depth on speech perception outcomes, one-third of the identified studies reported no correlation. Thus, the insertion depth must be considered as a contributing factor to speech perception rather than as a major decisive criterion. Registration This review has been registered in PROSPERO, the international prospective register of systematic reviews (CRD42021257547), available at https://www.crd.york.ac.uk/PROSPERO/.
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Affiliation(s)
- Tabita M. Breitsprecher
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
| | - Wolf-Dieter Baumgartner
- Universitätsklinik für Hals-, Nasen- und Ohrenkrankheiten, Medizinische Universität Wien, Wien, Austria
| | - Kevin Brown
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Stefan Dazert
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
| | - Una Doyle
- MED-EL Elektromedizinische Geraete Gesellschaft m.b.H., Innsbruck, Austria
| | - Anandhan Dhanasingh
- MED-EL Elektromedizinische Geraete Gesellschaft m.b.H., Innsbruck, Austria
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Wilma Großmann
- Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner,” Rostock University Medical Center, Rostock, Germany
| | - Rudolf Hagen
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Würzburg, Germany
| | - Paul Van de Heyning
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head & Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner,” Rostock University Medical Center, Rostock, Germany
| | - Marcus Neudert
- Department of Otorhinolaryngology Head and Neck Surgery, Technische Universität Dresden (oder TU Dresden), Faculty of Medicine (and University Hospital) Carl Gustav Carus, Dresden, Germany
| | - Gunesh Rajan
- Otolaryngology, Head and Neck Surgery, Medical School, University of Western Australia, Perth, Australia
- Faculty of Health Sciences and Medicine, University of Lucerne, Luzern, Switzerland
| | - Kristen Rak
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Würzburg, Germany
| | - Vincent Van Rompaey
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head & Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Joachim Schmutzhard
- Department of Otorhinolaryngology-Head and Neck Surgery, Medical University Innsbruck, Innsbruck, Austria
| | - Stefan Volkenstein
- Department of Otorhinolaryngology, Head and Neck Surgery, Ruhr-University Bochum, Johannes Wesling Klinikum Minden, Bochum, Germany
| | - Christiane Völter
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
| | - Wilhelm Wimmer
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Department of Otorhinolaryngology, TUM School of Medicine, Klinikum Rechts der Isar, Munich, Germany
| | - Mario Zernotti
- Division of Otolaryngology and Head and Neck Surgery, Sanatorio Allende, Catholic University of Córdoba and National University of Córdoba, Córdoba, Argentina
| | - Nora M. Weiss
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum, Germany
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head & Neck Surgery, Antwerp University Hospital, Edegem, Belgium
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine, Technical University of Munich (TUM), Munich, Germany
- Department of Otorhinolaryngology, TUM School of Medicine, Klinikum Rechts der Isar, Munich, Germany
- International Graduate School of Neuroscience, Ruhr-University Bochum, Bochum, Germany
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11
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Maletzki C, Freiin Grote V, Kalle F, Kleitke T, Zimpfer A, Becker AS, Bergmann-Ewert W, Jonitz-Heincke A, Bader R, Vollmar B, Hackenberg S, Scherzad A, Mlynski R, Strüder D. Establishing safe high hydrostatic pressure devitalization thresholds for autologous head and neck cancer vaccination and reconstruction. Cell Death Discov 2023; 9:390. [PMID: 37872173 PMCID: PMC10593744 DOI: 10.1038/s41420-023-01671-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 09/13/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023] Open
Abstract
High hydrostatic pressure specifically devitalizes cells and tissues without major changes in their molecular structure. Hence, high hydrostatic pressure may enhance the development of whole-cell anti-tumor vaccines, representing tumor heterogeneity and thus (neo-) antigen diversity. Moreover, safe devitalization of tumor-infiltrated supporting tissue may facilitate reimplantation for functional reconstruction. However, precise high hydrostatic pressure thresholds for safe cancer cell killing are unknown. Here, we show that high hydrostatic pressure of at least 450 MPa is necessary to safely devitalize head and neck squamous cell cancer. A pressure of 300 MPa, which has been used frequently in cancer vaccine preparation, resulted in partial devitalization with 27% live cells in flow cytometry and 4% remaining autofluorescence in cell culture after one week. The remaining cells could form vital tumors in the chorioallantoic membrane assay. In contrast, 450 MPa killed all cells in vitro and prevented tumor outgrowth in ovo. The effectiveness of 450 MPa was attributed to the induction of DNA double-strand breaks, independent of apoptosis, autophagy, or methuosis. Furthermore, 450 MPa continued to induce immunogenic cell death. Our results demonstrate that 450 MPa of high hydrostatic pressure induces safe and sustained devitalization of head and neck cancer cells and tissues. Because of the heterogeneity in pressure resistance, we propose our approach as a starting point for determining the precise thresholds for other cancer entities. Further studies on head and neck cancer should focus on immunological co-cultures, combinations of immune checkpoint inhibition, and accurate anatomical reconstruction with pressure-treated autografts.
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Affiliation(s)
- Claudia Maletzki
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Rostock, Germany
| | - Vivica Freiin Grote
- Research Laboratory for Biomechanics and Implant Technology, Department of Orthopedics, Rostock University Medical Centre, Rostock, Germany
| | - Friederike Kalle
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Thoralf Kleitke
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Annette Zimpfer
- Institute of Pathology, Rostock University Medical Center, Rostock, Germany
| | - Anne-Sophie Becker
- Institute of Pathology, Rostock University Medical Center, Rostock, Germany
| | - Wendy Bergmann-Ewert
- Core Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany
| | - Anika Jonitz-Heincke
- Research Laboratory for Biomechanics and Implant Technology, Department of Orthopedics, Rostock University Medical Centre, Rostock, Germany
| | - Rainer Bader
- Research Laboratory for Biomechanics and Implant Technology, Department of Orthopedics, Rostock University Medical Centre, Rostock, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany
| | - Stephan Hackenberg
- Department of Otorhinolaryngology-Head and Neck Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Agmal Scherzad
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Wuerzburg, Wuerzburg, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Daniel Strüder
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany.
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12
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Bächinger D, Neudert M, Dazert S, Röösli C, Huber A, Mlynski R, Weiss NM. [Health-related quality of life in chronic otitis media-measurement methods and their application in surgical therapy]. HNO 2023; 71:556-565. [PMID: 37422596 DOI: 10.1007/s00106-023-01324-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND Chronic otitis media (COM) can lead to significant impairment of health-related quality of life (HRQoL) due to symptoms such as otorrhea, pain, hearing loss, tinnitus, or dizziness. A systematic assessment of HRQoL in COM is becoming increasingly important as it complements (semi-)objective outcome parameters in clinical practice and research. HRQoL is measured by means of patient-reported outcome measures (PROMs). There are two disease-specific validated PROMs available for COM in German-the Chronic Otitis Media Outcome Test (COMOT-15) and the Zurich Chronic Middle Ear Inventory (ZCMEI-21)-which have become increasingly popular in recent years. OBJECTIVE The purpose of this narrative review is to present the current state of research on measuring HRQoL in COM before and after surgical procedures. RESULTS AND CONCLUSION Hearing is the most important factor influencing HRQoL in COM. Surgical procedures usually result in a clinically relevant improvement in HRQoL in COM with or without cholesteatoma. However, if cholesteatoma is present, its extent does not correlate with HRQoL. While HRQoL plays a secondary role in establishment of the indication for surgical therapy in COM with cholesteatoma, it plays an important role in terms of relative surgical indications, e.g., a symptomatic open mastoid cavity after resection of the posterior canal wall. We encourage the regular use of disease-specific PROMs preoperatively as well as during follow-up to assess HRQoL in COM in individual patients, in research, and in the context of quality monitoring.
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Affiliation(s)
- David Bächinger
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, St. Elisabeth-Hospital, Ruhr-Universität Bochum, Bochum, Deutschland
| | - Marcus Neudert
- Klinik und Poliklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum "Carl Gustav Carus", Dresden, Deutschland
| | - Stefan Dazert
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, St. Elisabeth-Hospital, Ruhr-Universität Bochum, Bochum, Deutschland
| | - Christof Röösli
- Klinik für Ohren‑, Nasen‑, Hals und Gesichtschirurgie, Universitätsspital Zürich, Zürich, Schweiz
- Universität Zürich, Zürich, Schweiz
| | - Alexander Huber
- Klinik für Ohren‑, Nasen‑, Hals und Gesichtschirurgie, Universitätsspital Zürich, Zürich, Schweiz
- Universität Zürich, Zürich, Schweiz
| | - Robert Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Deutschland
| | - Nora M Weiss
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, St. Elisabeth-Hospital, Ruhr-Universität Bochum, Bochum, Deutschland.
- Klinik und Poliklinik für Hals‑, Nasen- und Ohrenheilkunde, St. Elisabeth Hospital, Klinikum der Ruhr-Universität Bochum, Bleichstraße 15, 44787, Bochum, Deutschland.
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13
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Breitsprecher T, Mlynski R, Völter C, Van de Heyning P, Van Rompaey V, Dazert S, Weiss NM. Accuracy of Preoperative Cochlear Duct Length Estimation and Angular Insertion Depth Prediction. Otol Neurotol 2023; 44:e566-e571. [PMID: 37550888 DOI: 10.1097/mao.0000000000003956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
OBJECTIVE In cochlear implantation with flexible lateral wall electrodes, a cochlear coverage of 70% to 80% is assumed to yield an optimal speech perception. Therefore, fitting the cochlear implant (CI) to the patient's individual anatomy has gained importance in recent years. For these reasons, the optimal angular insertion depth (AID) has to be calculated before cochlear implantation. One CI manufacturer offers a software that allows to visualize the AID of different electrode arrays. Here, it is hypothesized that these preoperative AID models overestimate the postoperatively measured insertion angle. This study aims to investigate the agreement between preoperatively estimated and postoperatively measured AID. STUDY DESIGN Retrospective cross-sectional study. SETTING Single-center tertiary referral center. PATIENTS Patients undergoing cochlear implantation. INTERVENTION Preoperative and postoperative high-resolution computed tomography (HRCT). MAIN OUTCOME MEASURES The cochlear duct length was estimated by determining cochlear parameters ( A value and B value), and the AID for the chosen electrode was (i) estimated by elliptic circular approximation by the software and (ii) measured manually postoperatively by detecting the electrode contacts after insertion. RESULTS A total of 80 HRCT imaging data sets from 69 patients were analyzed. The mean preoperative AID estimation was 662.0° (standard deviation [SD], 61.5°), and the mean postoperatively measured AID was 583.9° (SD, 73.6°). In all cases (100%), preoperative AID estimation significantly overestimated the postoperative determined insertion angle (mean difference, 38.1°). A correcting factor of 5% on preoperative AID estimation dissolves these differences. CONCLUSIONS The use of an electrode visualization tool may lead to shorter electrode array choices because of an overestimation of the insertion angle. Applying a correction factor of 0.95 on preoperative AID estimation is recommended.
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Affiliation(s)
- Tabita Breitsprecher
- Department of Otorhinolaryngology–Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum,
Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner,” University Rostock, Germany
| | - Christiane Völter
- Department of Otorhinolaryngology–Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum,
Germany
| | - Paul Van de Heyning
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Belgium
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Vincent Van Rompaey
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Belgium
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Stefan Dazert
- Department of Otorhinolaryngology–Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum,
Germany
| | - Nora M Weiss
- Department of Otorhinolaryngology–Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, Bochum,
Germany
- Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- International Graduate School of Neuroscience (IGSN), Ruhr-University Bochum, Bochum, Germany
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14
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Löhler J, Delank W, Drumm S, Jäckel M, Lundershausen D, Mlynski R, Rotter N, Zeise K, Guntinas-Lichius O, Deitmer T. Erwägungen zur Durchführung und Qualitätssicherung ambulanter Operationen im HNO-Bereich in Deutschland. Laryngorhinootologie 2022; 101:866-875. [DOI: 10.1055/a-1946-1458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Zusammenfassung
Hintergrund Die deutsche Gesundheitspolitik hat eine Ausweitung ambulanter Operationen und Verfahren propagiert und die Diskussion darüber eingeleitet. Die HNO-Heilkunde bietet Möglichkeiten, derzeit stationär durchgeführte Eingriffe ambulant zu erbringen.
Methoden Die Deutsche Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie und der Deutsche Berufsverband der HNO-Ärzte haben Arbeitsgruppen ins Leben gerufen, die die HNO-fachlichen Aspekte der Leistungsverlagerungen in den ambulanten Bereich beurteilen und bewerten sollen. Die Arbeitsgruppen bekamen den Auftrag dabei organisatorische, strukturelle und personelle Definitionen der Qualitätssicherung zu erarbeiten und zu berücksichtigen.
Empfehlung Es wurden ausführlich Tatbestände bestimmt, die eine ambulante Operation im HNO-Fachgebiet ausschließen. Grundlage bildeten hierbei sowohl operationsbedingte als auch patientenbedingte Tatbestände. Schließlich wurden Operationen benannt, die als ambulante Operationen durchgeführt werden können.
Diskussion Es erfolgte eine HNO-fachliche Bewertung. Voraussetzung für eine Ambulantisierung ist eine Neuordnung der Vergütung. Das bisherige DRG- und EBM-System bieten hierzu keinen befriedigenden Rahmen, der EBM ermöglicht keine wirtschaftliche Erbringung operativer Eingriffe im HNO-Bereich. Die Entwicklung eines adäquaten Finanzierungsmodells ist für einen Erfolg der Umsetzung genauso zwingend erforderlich wie die Integration und Finanzierung der HNO-ärztlichen Weiterbildung.
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Affiliation(s)
- Jan Löhler
- Wissenschaftliches Institut für angewandte HNO-Heilkunde (WIAHNO), Bad Bramstedt
| | - Wolfgang Delank
- Hals-Nasen-Ohren-Klinik, Klinikum Ludwigshafen, Ludwigshafen
| | - Stefan Drumm
- Gemeinschaftspraxis für Hals-Nasen-Ohrenheilkunde, Adendorf
| | | | | | - Robert Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie „Otto Körner“, Universitätsmedizin Rostock, Rostock
| | - Nicole Rotter
- Klinik für Hals-, Nasen-, Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Mannheim, Mannheim
| | | | - Orlando Guntinas-Lichius
- HNO-Klinik, Universitätsklinikum Jena, Jena
- Deutsche Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie, Bonn
| | - Thomas Deitmer
- Deutsche Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie, Bonn
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15
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Bächinger D, Breitsprecher TM, Pscheidl A, Dhanasingh A, Mlynski R, Dazert S, Langner S, Weiss NM. Internal auditory canal volume in normal and malformed inner ears. Eur Arch Otorhinolaryngol 2022; 280:2149-2154. [PMID: 36210370 PMCID: PMC10066105 DOI: 10.1007/s00405-022-07676-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/22/2022] [Indexed: 11/03/2022]
Abstract
Abstract
Purpose
A narrow bony internal auditory canal (IAC) may be associated with a hypoplastic cochlear nerve and poorer hearing performances after cochlear implantation. However, definitions for a narrow IAC vary widely and commonly, qualitative grading or two-dimensional measures are used to characterize a narrow IAC. We aimed to refine the definition of a narrow IAC by determining IAC volume in both control patients and patients with inner ear malformations (IEMs).
Methods
In this multicentric study, we included high-resolution CT (HRCT) scans of 128 temporal bones (85 with IEMs: cochlear aplasia, n = 11; common cavity, n = 2; cochlear hypoplasia type, n = 19; incomplete partition type I/III, n = 8/8; Mondini malformation, n = 16; enlarged vestibular aqueduct syndrome, n = 19; 45 controls). The IAC diameter was measured in the axial plane and the IAC volume was measured by semi-automatic segmentation and three-dimensional reconstruction.
Results
In controls, the mean IAC diameter was 5.5 mm (SD 1.1 mm) and the mean IAC volume was 175.3 mm3 (SD 52.6 mm3). Statistically significant differences in IAC volumes were found in cochlear aplasia (68.3 mm3, p < 0.0001), IPI (107.4 mm3, p = 0.04), and IPIII (277.5 mm3, p = 0.0004 mm3). Inter-rater reliability was higher in IAC volume than in IAC diameter (intraclass correlation coefficient 0.92 vs. 0.77).
Conclusions
Volumetric measurement of IAC in cases of IEMs reduces measurement variability and may add to classifying IEMs. Since a hypoplastic IAC can be associated with a hypoplastic cochlear nerve and sensorineural hearing loss, radiologic assessment of the IAC is crucial in patients with severe sensorineural hearing loss undergoing cochlear implantation.
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16
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Topsakal V, Agrawal S, Atlas M, Baumgartner WD, Brown K, Bruce IA, Dazert S, Hagen R, Lassaletta L, Mlynski R, Raine CH, Rajan GP, Schmutzhard J, Sprinzl GM, Staecker H, Usami SI, Van Rompaey V, Zernotti M, van de Heyning P. Minimally Traumatic Cochlear Implant Surgery: Expert Opinion in 2010 and 2020. J Pers Med 2022; 12:jpm12101551. [PMID: 36294690 PMCID: PMC9605439 DOI: 10.3390/jpm12101551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/14/2022] [Accepted: 09/17/2022] [Indexed: 12/03/2022] Open
Abstract
This study aimed to discover expert opinion on the surgical techniques and materials most likely to achieve maximum postoperative residual hearing preservation in cochlear implant (CI) surgery and to determine how these opinions have changed since 2010. A previously published questionnaire used in a study published in 2010 was adapted and expanded. The questionnaire was distributed to an international group of experienced CI surgeons. Present results were compared, via descriptive statistics, to those from the 2010 survey. Eighteen surgeons completed the questionnaire. Respondents clearly favored the following: round window insertion, slow array insertion, and the peri- and postoperative use of systematic antibiotics. Insertion depth was regarded as important, and electrode arrays less likely to induce trauma were preferred. The usefulness of dedicated soft-surgery training was also recognized. A lack of agreement was found on whether the middle ear cavity should be flushed with a non-aminoglycoside antibiotic solution or whether a sheath or insertion tube should be used to avoid contaminating the array with blood or bone dust. In conclusion, this paper demonstrates how beliefs about CI soft surgery have changed since 2010 and shows areas of current consensus and disagreement.
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Affiliation(s)
- Vedat Topsakal
- Department of Otorhinolaryngology, Head and Neck Surgery, Brussels Health Campus, University Hospital Brussels (UZ Brussel), Vrije Universiteit Brussel (VUB), 1090 Jette, Belgium
- Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital (UZA), University of Antwerp, 2610 Edegem, Belgium
- Correspondence: ; Tel.: +32-2477-6882; Fax: +32-2477-6880
| | - Sumit Agrawal
- London Canada Health Sciences Centre, Department of Otolaryngology–Head & Neck Surgery, Western University, London, ON N6G 2M3, Canada
| | - Marcus Atlas
- Ear Science Institute Australia, Subiaco, WA 6008, Australia
| | | | - Kevin Brown
- UNC Ear & Hearing Center at Chapel Hill School of Medicine, Chapel Hill, NC 27599, USA
| | - Iain A. Bruce
- Royal Manchester Children’s Hospital, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
- Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M15 6JA, UK
| | - Stefan Dazert
- St. Elisabeth Hospital, Ruhr University Bochum, 44787 Bochum, Germany
| | - Rudolf Hagen
- Würzburg ENT University Hospital, 97080 Würzburg, Germany
| | | | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, 18057 Rostock, Germany
| | - Christopher H. Raine
- Bradford Royal Infirmary Yorkshire Auditory Implant Service, Bradford BD9 6RJ, UK
| | | | - Joachim Schmutzhard
- Department of Otorhinolaryngology-Head and Neck Surgery, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | | | - Hinrich Staecker
- Department of Otolaryngology-Head & Neck Surgery, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Shin-ichi Usami
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto 390-8621, Japan
| | - Vincent Van Rompaey
- Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital (UZA), University of Antwerp, 2610 Edegem, Belgium
| | | | - Paul van de Heyning
- Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital (UZA), University of Antwerp, 2610 Edegem, Belgium
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17
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van Bonn SM, Grajek JS, Schuldt T, Schraven SP, Schneider A, Rettschlag S, Oberhoffner T, Weiss NM, Mlynski R. [Interactive intraoperative annotation of surgical landmarks in student education to support learning efficiency and motivation]. HNO 2022; 70:609-617. [PMID: 35665824 PMCID: PMC9166199 DOI: 10.1007/s00106-022-01187-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND The development of technological innovations has not only changed social life and the healthcare system, but also affects medical education. The aim of this pilot study was to evaluate whether students, when observing a microsurgical procedure of the temporal bone, gain an additional understanding of the anatomical structures and surgical site when visualization is used that provides identical views for the surgeon and viewer in 3D. MATERIALS AND METHODS During regular attendance tutorials, students were randomly assigned to three different groups: control group, 2D group, or 3D group. Evaluation questionnaires and intraoperative student annotation of the surgical view were used to assess the subjective didactic value of different visualization formats and resultant learning experiences for the students. RESULTS A total of 47 students were included in the investigations during conventional attendance tutorials. The majority indicated a high added value of the 3D visualization in terms of method (70%) and vividness (80%) compared to the 2D group and self-study; 69% of the students fully agreed with the statement that 2D and 3D visualization increases learning motivation and is a very good way to improve recognition of anatomical topography and structures. CONCLUSION New interactive visualization options in teaching promote learning efficiency and motivation among students. Especially 3D visualization and intraoperative annotation of the surgical view by the student is a useful didactic tool and increases the quality of clinical teaching. It supports the perception of anatomical topography and enables more focused surgical training.
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Affiliation(s)
- Sara M van Bonn
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland.
| | - Jan S Grajek
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Tobias Schuldt
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Sebastian P Schraven
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Armin Schneider
- Fachbereich Ingenieurwissenschaften, Jade Hochschule, Friedrich-Paffrath-Straße 101, 26389, Wilhelmshaven, Deutschland
| | - Stefanie Rettschlag
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Tobias Oberhoffner
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Nora M Weiss
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf‑ und Halschirurgie, Head and Neck Surgery, St. Elisabeth Hospital, Ruhr University Bochum, Bleichstr. 15, 44787, Bochum, Deutschland
| | - Robert Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
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18
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Weiss NM, Bennöhr F, Lenz JH, Mlynski R, Rettschlag S. [Eustachian tube dysfunction after cleft palate surgery : Use of the latest diagnostics]. HNO 2022; 70:557-563. [PMID: 35318498 PMCID: PMC9242949 DOI: 10.1007/s00106-022-01147-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVE In patients with cleft palate, a high incidence of chronic obstructive Eustachian tube dysfunction (ETD) is assumed after surgery. Consequently, an increased rate of retracted eardrum or cholesteatoma is expected. Even though no common standard for investigating ETD is available, the development of objective tests has increased during the past 10 years. This study aimed to investigate the incidence of persisting chronic obstructive ETD in adult patients with cleft palate surgically treated in early childhood by using a combination of diagnostic tools. METHODS Adult participants with cleft palate repair in early childhood were invited for a follow-up examination and compared to a control group. Examination included tympanometry, tubomanometry, the Eustachian Tube Dysfunction Questionnaire (ETDQ-7), and the Eustachian Tube Score 7 (ETS-7). RESULTS A total of 16 adult patients were re-examined after cleft palate surgery and compared to a control group of 40 healthy individuals. Significant differences were found in the median ETS‑7 (p < 0.0001) score but not in the median ETDQ‑7 (p = 0.09) score. Only 2 of the 32 investigated ears (6%) had pathologic scores in ETS‑7 and ETDQ‑7 (p = 0.09), whereas 5 (31%) cleft palate patients showed symptoms of chronic obstructive ETD according to ETS‑7. No patient had examination findings indicating a requirement for further treatment. CONCLUSION By combining diagnostic tools for ETD, a lower rate of persisting obstructive ETD in adults after cleft palate surgery was found than previously reported. Successful surgical treatment of cleft palate seems to lead to physiological Eustachian tube function in long-term follow up.
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Affiliation(s)
- Nora M Weiss
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland.
| | - Franziska Bennöhr
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Jan-Hendrik Lenz
- Klinik und Poliklinik für Mund‑, Kiefer- und Plastische Gesichtschirurgie, Klinik und Polikliniken für Zahn‑, Mund- und Kieferheilkunde, Universitätsmedizin Rostock, Rostock, Deutschland
| | - Robert Mlynski
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
| | - Stefanie Rettschlag
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Deutschland
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19
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Van de Heyning P, Gavilán J, Godey B, Hagen R, Hagr A, Kameswaran M, Li Y, Manoj M, Mlynski R, O’Driscoll M, Pillsbury H, Raine CH, Rajan G, Schmutzhard J, Staecker H. Worldwide Variation in Cochlear Implant Candidacy. J Int Adv Otol 2022; 18:196-202. [PMID: 35608486 PMCID: PMC10682809 DOI: 10.5152/iao.2022.21470] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 03/28/2022] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND The aim of this study was to find out how candidacy criteria have evolved differently across the globe. METHODS Candidacy criteria and outcome measurements applied in 19 HEARRING clinics were analyzed. RESULTS Candidacy criteria vary between clinics. Overall, both bilateral implantation and cochlear implantation in patients with single-sided deafness are becoming more frequent. CONCLUSION Standardized outcome measurement instruments need to be applied to provide access to the hearing world to all patients with hearing loss who would benefit from cochlear implantation.
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Affiliation(s)
| | - Javier Gavilán
- Madrid Hospital La Paz Paseo de la Castellana, Madrid, Spain
| | - Benoît Godey
- CHU - Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - Rudolf Hagen
- Würzburg ENT University Hospital, Würzburg, Germany
| | - Abdulrahman Hagr
- King Abdullah Ear Specialist Center, ENT Department, Riyadh, Saudi Arabia
| | | | - Yongxin Li
- Capital Medical University, Beijing Tongren Hospital, Beijing Shi, China
| | - Manikoth Manoj
- Calicut ENT Super Speciality Institute and Research Center, Kerala, India
| | | | - Martin O’Driscoll
- Central Manchester University Hospitals Ellen Wilkinson Building, Manchester, United Kingdom
| | - Harold Pillsbury
- UNC Ear & Hearing Center at Chapel Hill School of Medicine, North Carolina, USA
| | - Christopher H. Raine
- Bradford Royal Infirmary Yorkshire Auditory Implant Center, Bradford, United Kingdom
| | - Gunesh Rajan
- Luzern HNO-klinik Kantonspital Luzerner, Luzern, Switzerland
| | | | - Hinrich Staecker
- Kansas University Center for Hearing and Balance Disorders, Kansas City, USA
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20
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Dohr D, Wulf K, Grabow N, Mlynski R, Schraven SP. A PLLA Coating Does Not Affect the Insertion Pressure or Frictional Behavior of a CI Electrode Array at Higher Insertion Speeds. Materials 2022; 15:ma15093049. [PMID: 35591381 PMCID: PMC9104964 DOI: 10.3390/ma15093049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/14/2022] [Accepted: 04/14/2022] [Indexed: 01/27/2023]
Abstract
To prevent endocochlear insertion trauma, the development of drug delivery coatings in the field of CI electrodes has become an increasing focus of research. However, so far, the effect of a polymer coating of PLLA on the mechanical properties, such as the insertion pressure and friction of an electrode array, has not been investigated. In this study, the insertion pressure of a PLLA-coated, 31.5-mm long standard electrode array was examined during placement in a linear cochlear model. Additionally, the friction coefficients between a PLLA-coated electrode array and a tissue simulating the endocochlear lining were acquired. All data were obtained at different insertion speeds (0.1, 0.5, 1.0, 1.5, and 2.0 mm/s) and compared with those of an uncoated electrode array. It was shown that both the maximum insertion pressure generated in the linear model and the friction coefficient of the PLLA-coated electrode did not depend on the insertion speed. At higher insertion speeds above 1.0 mm/s, the insertion pressure (1.268 ± 0.032 mmHg) and the friction coefficient (0.40 ± 0.15) of the coated electrode array were similar to those of an uncoated array (1.252 ± 0.034 mmHg and 0.36 ± 0.15). The present study reveals that a PLLA coating on cochlear electrode arrays has a negligible effect on the electrode array insertion pressure and the friction when higher insertion speeds are used compared with an uncoated electrode array. Therefore, PLLA is a suitable material to be used as a coating for CI electrode arrays and can be considered for a potential drug delivery system.
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Affiliation(s)
- Dana Dohr
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, 18057 Rostock, Germany; (R.M.); (S.P.S.)
- Correspondence: author
| | - Katharina Wulf
- Institute for Biomedical Engineering, Rostock University Medical Center, 18119 Rostock, Germany; (K.W.); (N.G.)
| | - Niels Grabow
- Institute for Biomedical Engineering, Rostock University Medical Center, 18119 Rostock, Germany; (K.W.); (N.G.)
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, 18057 Rostock, Germany; (R.M.); (S.P.S.)
| | - Sebastian P. Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, 18057 Rostock, Germany; (R.M.); (S.P.S.)
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21
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Quabius E, Heinrichs A, Kühnel A, Laudien M, Hoppe F, Mlynski R, Ambrosch P, Hoffmann M. Tonsillar swabs and sputum predict SLPI‑ and AnxA2 expression in tonsils: A prospective study on smoking dependent SLPI‑ and AnxA2‑expression, and tonsillar HPV infection. Oncol Lett 2022; 23:164. [DOI: 10.3892/ol.2022.13284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 02/10/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Elgar Quabius
- Department of Otorhinolaryngology, Head and Neck Surgery, University Clinic Schleswig‑Holstein, D‑24105 Kiel, Germany
| | - Alessa Heinrichs
- Department of Otorhinolaryngology, Head and Neck Surgery ‘Otto Koerner’, University of Rostock, D‑18057 Rostock, Germany
| | - André Kühnel
- Department of Otorhinolaryngology, Head and Neck Surgery, Asklepios Hospital Harburg, D‑21075 Hamburg, Germany
| | - Martin Laudien
- Department of Otorhinolaryngology, Head and Neck Surgery, University Clinic Schleswig‑Holstein, D‑24105 Kiel, Germany
| | - Florian Hoppe
- Department of Otorhinolaryngology‑Head and Neck Surgery, Klinikum Oldenburg, D‑26133 Oldenburg, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery ‘Otto Koerner’, University of Rostock, D‑18057 Rostock, Germany
| | - Petra Ambrosch
- Department of Otorhinolaryngology, Head and Neck Surgery, University Clinic Schleswig‑Holstein, D‑24105 Kiel, Germany
| | - Markus Hoffmann
- Department of Otorhinolaryngology, Head and Neck Surgery, University Clinic Schleswig‑Holstein, D‑24105 Kiel, Germany
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22
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Van de Heyning P, Roland P, Lassaletta L, Agrawal S, Atlas M, Baumgartner WD, Brown K, Caversaccio M, Dazert S, Gstoettner W, Hagen R, Hagr A, Jablonski GE, Kameswaran M, Kuzovkov V, Leinung M, Li Y, Loth A, Magele A, Mlynski R, Mueller J, Parnes L, Radeloff A, Raine C, Rajan G, Schmutzhard J, Skarzynski H, Skarzynski PH, Sprinzl G, Staecker H, Stöver T, Tavora-Viera D, Topsakal V, Usami SI, Van Rompaey V, Weiss NM, Wimmer W, Zernotti M, Gavilan J. Suitable Electrode Choice for Robotic-Assisted Cochlear Implant Surgery: A Systematic Literature Review of Manual Electrode Insertion Adverse Events. Front Surg 2022; 9:823219. [PMID: 35402479 PMCID: PMC8987358 DOI: 10.3389/fsurg.2022.823219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/09/2022] [Indexed: 12/05/2022] Open
Abstract
Background and Objective The cochlear implant (CI) electrode insertion process is a key step in CI surgery. One of the aims of advances in robotic-assisted CI surgery (RACIS) is to realize better cochlear structure preservation and to precisely control insertion. The aim of this literature review is to gain insight into electrode selection for RACIS by acquiring a thorough knowledge of electrode insertion and related complications from classic CI surgery involving a manual electrode insertion process. Methods A systematic electronic search of the literature was carried out using PubMed, Scopus, Cochrane, and Web of Science to find relevant literature on electrode tip fold over (ETFO), electrode scalar deviation (ESD), and electrode migration (EM) from both pre-shaped and straight electrode types. Results A total of 82 studies that include 8,603 ears implanted with a CI, i.e., pre-shaped (4,869) and straight electrodes (3,734), were evaluated. The rate of ETFO (25 studies, 2,335 ears), ESD (39 studies, 3,073 ears), and EM (18 studies, 3,195 ears) was determined. An incidence rate (±95% CI) of 5.38% (4.4–6.6%) of ETFO, 28.6% (26.6–30.6%) of ESD, and 0.53% (0.2–1.1%) of EM is associated with pre-shaped electrodes, whereas with straight electrodes it was 0.51% (0.1–1.3%), 11% (9.2–13.0%), and 3.2% (2.5–3.95%), respectively. The differences between the pre-shaped and straight electrode types are highly significant (p < 0.001). Laboratory experiments show evidence that robotic insertions of electrodes are less traumatic than manual insertions. The influence of round window (RW) vs. cochleostomy (Coch) was not assessed. Conclusion Considering the current electrode designs available and the reported incidence of insertion complications, the use of straight electrodes in RACIS and conventional CI surgery (and manual insertion) appears to be less traumatic to intracochlear structures compared with pre-shaped electrodes. However, EM of straight electrodes should be anticipated. RACIS has the potential to reduce these complications.
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Affiliation(s)
- Paul Van de Heyning
- Department of Otorhinolaryngology Head and Neck Surgery, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium
- Department of Translational Neurosciences, University of Antwerp, Antwerp, Belgium
- *Correspondence: Paul Van de Heyning
| | - Peter Roland
- Department of Otolaryngology, Head & Neck Surgery, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Luis Lassaletta
- Hospital Universitario La Paz, Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Sumit Agrawal
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON, Canada
| | - Marcus Atlas
- Ear Sciences Institute Australia, Lions Hearing Clinic, Perth, WA, Australia
| | | | - Kevin Brown
- UNC Ear and Hearing Center at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Marco Caversaccio
- Department for ENT, Head and Neck Surgery, Bern University Hospital, Bern, Switzerland
| | - Stefan Dazert
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth University Hospital Bochum, Bochum, Germany
| | | | - Rudolf Hagen
- Würzburg ENT University Hospital, Würzburg, Germany
| | - Abdulrahman Hagr
- King Abdullah Ear Specialist Center, King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Greg Eigner Jablonski
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Otorhinolaryngology & Head and Neck Surgery, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | | | - Vladislav Kuzovkov
- St. Petersburg ENT and Speech Research Institute, St. Petersburg, Russia
| | - Martin Leinung
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Yongxin Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Andreas Loth
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Astrid Magele
- Ear, Nose and Throat Department, University Clinic St. Poelten, Karl Landsteiner Private University, St. Poelten, Austria
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner” Rostock University Medical Center, Rostock, Germany
| | - Joachim Mueller
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Ludwig-Maximilians-Universitat Munchen, Munchen, Germany
| | - Lorne Parnes
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON, Canada
| | - Andreas Radeloff
- Division of Oto-Rhino-Laryngology, Evangelisches Krankenhaus Oldenburg, Research Center of Neurosensory Sciences, University Oldenburg, Oldenburg, Germany
| | - Chris Raine
- Bradford Royal Infirmary Yorkshire Auditory Implant Center, Bradford, United Kingdom
| | - Gunesh Rajan
- Department of Otolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, Luzern, Medical Sciences Department of Health Sciences and Medicine. University of Lucerne, Luzern, Switzerland. Otolaryngology, Head & Neck Surgery, Medical School University of Western Australia, Perth, WA, Australia
| | - Joachim Schmutzhard
- Department of Otorhinolaryngology, Medical University of Innsbruck, Innsbruck, Austria
| | - Henryk Skarzynski
- Department of Teleaudiology and Screening, World Hearing Center of the Institute of Physiology and Pathology of Hearing, Kajetany, Poland
| | - Piotr H. Skarzynski
- Department of Teleaudiology and Screening, World Hearing Center of the Institute of Physiology and Pathology of Hearing, Kajetany, Poland
| | - Georg Sprinzl
- Ear, Nose and Throat Department, University Clinic St. Poelten, Karl Landsteiner Private University, St. Poelten, Austria
| | - Hinrich Staecker
- Kansas University Center for Hearing and Balance Disorders, Kansas City, KS, United States
| | - Timo Stöver
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Frankfurt, Frankfurt am Main, Germany
| | | | - Vedat Topsakal
- Department of ENT HNS, University Hospital Brussels, Brussels, Belgium
| | - Shin-Ichi Usami
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Nagano, Japan
| | - Vincent Van Rompaey
- Department of Otorhinolaryngology Head and Neck Surgery, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium
- Department of Translational Neurosciences, University of Antwerp, Antwerp, Belgium
| | - Nora M. Weiss
- Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth University Hospital Bochum, Bochum, Germany
| | - Wilhelm Wimmer
- Department for ENT, Head and Neck Surgery, Bern University Hospital, Bern, Switzerland
| | - Mario Zernotti
- Catholic University of Córdoba and National University of Córdoba, Córdoba, Argentina
| | - Javier Gavilan
- Hospital Universitario La Paz, Institute for Health Research (IdiPAZ), Madrid, Spain
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23
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van Bonn SM, Behrendt SP, Pawar BL, Schraven SP, Mlynski R, Schuldt T. Smartphone-based nystagmus diagnostics: development of an innovative app for the targeted detection of vertigo. Eur Arch Otorhinolaryngol 2022; 279:5565-5571. [PMID: 35451613 PMCID: PMC9023692 DOI: 10.1007/s00405-022-07385-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/01/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND In medicine, the symptom of dizziness is one of the most common multidisciplinary causes of emergency medical presentation. Attending physicians are often faced with difficult decisions when evaluating patients with dizziness. A rapid differential diagnostic decision must be made during the initial examination. The goal of this study, was to develop a smartphone-based app that can diagnose and qualify nystagmus. The app should enable differentiation between acute emergencies such as strokes ("central vertigo") and vestibular disorders ("peripheral vertigo") using and recognizing or analyzing the accompanying symptom "nystagmus". MATERIALS AND METHODS This prospective study was conducted at the Department of Otolaryngology, Head and Neck Surgery "Otto Körner", Rostock (Germany). The experimental study design consisted of two test runs and two control runs. In the two test runs, nystagmus was tracked and evaluated by caloric and optokinetic stimulation, respectively, through a custom-developed app. Sensitivity and correlation were calculated for the app's application performance and compared under different experimental conditions. RESULTS The patient sample included twenty healthy participants with a mean age of 25.6 years (± 2.2 SD) who participated in the study. The overall sensitivity of detection of nystagmus averaged 82.14% in the optokinetic stimulation test trials. There is no correlation regarding specific subject data and sensitivity. CONCLUSIONS The results of our experimental validation study show that a smartphone-based nystagmus app is a useful tool for vertigo diagnosis. The results of our analyses show that it is possible to diagnose nystagmus and determine shape or direction with the app.
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Affiliation(s)
- Sara M. van Bonn
- grid.413108.f0000 0000 9737 0454Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner”, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany
| | - Sophie P. Behrendt
- grid.413108.f0000 0000 9737 0454Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner”, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany
| | - Bhushan L. Pawar
- grid.10493.3f0000000121858338Faculty of Computer Science and Electrical Engineering, Institute of Automation, University Rostock, Albert-Einstein-Strasse 22, 18059 Rostock, Germany
| | - Sebastian P. Schraven
- grid.413108.f0000 0000 9737 0454Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner”, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany
| | - Robert Mlynski
- grid.413108.f0000 0000 9737 0454Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner”, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany
| | - T. Schuldt
- grid.413108.f0000 0000 9737 0454Department of Otorhinolaryngology, Head and Neck Surgery, “Otto Körner”, Rostock University Medical Center, Doberaner Strasse 137-139, 18057 Rostock, Germany
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24
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Högerle C, Englhard A, Simon F, Grüninger I, Mlynski R, Hempel JM, Müller J. Cochlear Implant Electrode Tip Fold-Over: Our Experience With Long and Flexible Electrode. Otol Neurotol 2022; 43:64-71. [PMID: 34619728 DOI: 10.1097/mao.0000000000003362] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim of this study was to retrospectively investigate if there is any incidence of electrode tip fold-over with 31.5 mm long and flexible lateral wall electrodes implanted in two high-volume Cochlear Implant (CI) centers in Germany. In addition, a detailed literature review was performed to capture all the peer-reviewed publications reporting on tip fold-over with CI electrodes from different CI brands for comparison. METHODS Post-operative X-ray images of FLEX SOFT electrode from MED-EL in Stenver's view were retrospectively investigated for the presence of electrode tip fold-over from 378 consecutive cases in two high-volume CI centers in Germany. All patients were implanted between 2010 and 2018 by three individual experienced CI surgeons using round window and extended round window approach for CI electrode insertion. A literature review was performed following a thorough PubMed (https://www.ncbi.nlm.nih.gov/pubmed/) search using the keywords "cochlear implant electrode tip fold-over" or "cochlear implant electrode tip roll-over" to capture articles that were published until December 2020 in English language only. Articles selection was based on electrode-related issues investigated only in-patient cases applying imaging modality. Those studies investigated tip fold-over in cadaveric temporal bones and cases with inner-ear malformation excluded. RESULTS No single case of tip fold-over was clinically detected from the retrospective investigation of post-operative X-ray images from 378 consecutive cases. The electrode angular insertion depth as measured applying the cochlear coordinate system, varied from a minimum of 560° to a maximum of 720°. The literature review on the tip fold-over issue resulted in 24 peer-reviewed published articles in total. Tip fold-over with pre-curved modiolar-hugging electrodes was reported in 85 cases out of 1,606 implantations making an incidence rate of 5.3%. With the straight lateral wall electrodes, the tip fold-over was reported in four cases out of 398 implantations making an incidence rate of 1%, not including the number of implantations reported in the current study. Otherwise it would be 0.5%. CONCLUSION Electrode tip fold-over with 31.5 mm long flexible lateral wall electrodes is highly exceptional and this can be generalized to any of the straight lateral wall electrodes from any CI brand. The literature review on tip fold-over revealed an incidence rate of 5.3% with pre-curved or modiolar-hugging electrodes and 1% with straight lateral wall electrodes from CI brands. Including this series of 0% tip fold-over, the incidence rate of electrode tip fold-over with LW electrode type would be 0.5%.
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Affiliation(s)
- Catalina Högerle
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig Maximilians University, Munich
| | - Anna Englhard
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig Maximilians University, Munich
| | - Florian Simon
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig Maximilians University, Munich
| | - Ivo Grüninger
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig Maximilians University, Munich
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner," Rostock University Medical Center, Rostock, Germany
| | - John-Martin Hempel
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig Maximilians University, Munich
| | - Joachim Müller
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig Maximilians University, Munich
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Strüder D, Lachmann C, van Bonn SM, Grambow E, Schraven SP, Mlynski R, Vollmar B. The Dorsal Skinfold Chamber as a New Tympanic Membrane Wound Healing Model: Intravital Insights into the Pathophysiology of Epithelialized Wounds. Eur Surg Res 2021; 63:1-15. [PMID: 34856545 PMCID: PMC9808650 DOI: 10.1159/000519774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/05/2021] [Indexed: 01/07/2023]
Abstract
BACKGROUND Tympanic membrane perforations (TMPs) are a common complication of trauma and infection. Persisting perforations result from the unique location of the tympanic membrane. The wound is surrounded by air of the middle ear and the external auditory canal. The inadequate wound bed, growth factor, and blood supply lead to circular epithelialization of the perforation's edge and premature interruption of defect closure. Orthotopic animal models use mechanical or chemical tympanic membrane laceration to identify bioactive wound dressings and overcome premature epithelialization. However, all orthotopic models essentially lack repetitive visualization of the biomaterial-wound interface. Therefore, recent progress in 3D printing of customized wound dressings has not yet been transferred to the unique wound setup of the TMP. Here, we present a novel application for the mice dorsal skinfold chamber (DSC) with an epithelialized full-thickness defect as TMP model. METHODS A circular 2-mm defect was cut into the extended dorsal skinfold using a biopsy punch. The skinfold was either perforated through both skin layers without prior preparation or perforated on 1 side, following resection of the opposing skin layer. In both groups, the wound was sealed with a coverslip or left unclosed (n = 4). All animals were examined for epithelialization of the edge (histology), size of the perforation (planimetry), neovascularization (repetitive intravital fluorescence microscopy), and inflammation (immunohistology). RESULTS The edge of the perforation was overgrown by the cornified squamous epithelium in all pre-parations. Reduction in the perforation's size was enhanced by application of a coverslip. Microsurgical preparation before biopsy punch perforation and sealing with a coverslip enabled repetitive high-quality intravital fluorescence microscopy. However, spontaneous reduction of the perforation occurred frequently. Therefore, the direct biopsy punch perforation without microsurgical preparation was favorable: spontaneous reduction did not occur throughout 21 days. Moreover, the visualization of the neovascularization was sufficient in intravital microscopy. CONCLUSIONS The DSC full-thickness defect is a valuable supplement to orthotopic TMP models. Repetitive intravital microscopy of the epithelialized edge enables investigation of the underlying pathophysiology during the transition from the inflammation to the proliferation phase of wound healing. Using established analysis procedures, the present model provides an effective platform for the screening of bioactive materials and transferring progress in tissue engineering to the special conditions of tympanic membrane wound healing.
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Affiliation(s)
- Daniel Strüder
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, Rostock, Germany,Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany,*Daniel Strüder,
| | - Christoph Lachmann
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, Rostock, Germany
| | - Sara Maria van Bonn
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, Rostock, Germany
| | - Eberhard Grambow
- Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany,Department of General, Visceral, Vascular and Transplantation Surgery, Rostock University Medical Center, Rostock, Germany
| | - Sebastian P. Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery “Otto Körner”, Rostock University Medical Center, Rostock, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany
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van Bonn SM, Grajek JS, Schneider A, Oberhoffner T, Mlynski R, Weiss NM. Interactive live-stream surgery contributes to surgical education in the context of contact restrictions. Eur Arch Otorhinolaryngol 2021; 279:2865-2871. [PMID: 34424381 PMCID: PMC8381709 DOI: 10.1007/s00405-021-06994-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/13/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Attendance teaching is the predominant teaching method at universities but needs to be questioned in the context of digital transformation. This study establishes and evaluates a method to accomplish electronic learning to supplement traditional attendance courses. MATERIALS AND METHODS Surgery was transmitted in real-time conditions via an online live stream from the surgical theater. Visualization was transferred from a fully digital surgical microscope, an endoscope or an environmental camera in high definition quality. Students were able to participate at home from their personal computer. After following the surgery, they participated in an online-evaluation. RESULTS A total of 65 students participated in the live stream. The majority of students (61.54%) indicated a significant subjective increase in knowledge after participation. The majority of students (53.85%) indicated that live surgeries should be offered as a permanent component in addition to classroom teaching. Likewise, a broader offer was desired by many students (63.08%). CONCLUSIONS Live streaming of surgery is a promising approach as an alternative or supplement to traditional attendance teaching. An expansion of digital teaching can be explicitly supported on the basis of this study.
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Affiliation(s)
- Sara M van Bonn
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, D-18057, Rostock, Germany
| | - Jan S Grajek
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, D-18057, Rostock, Germany
| | - Armin Schneider
- Munich Surgical Imaging GmbH, Türkenstraße 89, 80799, Munich, Germany
- Research Group Minimally Invasive Interdisciplinary Therapeutical Intervention (MITI), KlinikumRechts Der Isar", Technical University Munich (TUM), Munich, Germany
| | - Tobias Oberhoffner
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, D-18057, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, D-18057, Rostock, Germany
| | - Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, D-18057, Rostock, Germany.
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Strüder D, Momper T, Irmscher N, Krause M, Liese J, Schraven S, Zimpfer A, Zonnur S, Burmeister AS, Schneider B, Frerich B, Mlynski R, Große-Thie C, Junghanss C, Maletzki C. Establishment and characterization of patient-derived head and neck cancer models from surgical specimens and endoscopic biopsies. J Exp Clin Cancer Res 2021; 40:246. [PMID: 34362423 PMCID: PMC8344210 DOI: 10.1186/s13046-021-02047-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/16/2021] [Indexed: 01/31/2023]
Abstract
Background Head and neck squamous cell carcinoma (HNSCC) is heterogeneous in etiology, phenotype and biology. Patient-derived xenografts (PDX) maintain morphology and molecular profiling of the original tumors and have become a standard “Avatar” model for human cancer research. However, restricted availability of tumor samples hindered the widespread use of PDX. Most PDX-projects include only surgical specimens because reliable engraftment from biopsies is missing. Therefore, sample collection is limited and excludes recurrent and metastatic, non-resectable cancer from preclinical models as well as future personalized medicine. Methods This study compares the PDX-take rate, -growth, histopathology, and molecular characteristics of endoscopic specimens with surgical specimens. HNSCC samples (n = 55) were collected ad hoc, fresh frozen and implanted into NOD.Cg-PrkdcscidIl2rgtm1Wjl/SzJ mice. Results Engraftment was successful in both sample types. However, engraftment rate was lower (21 vs. 52%) and growth delayed (11.2 vs. 6.7 weeks) for endoscopic biopsies. Following engraftment, growth kinetic was similar. Comparisons of primary tumors and corresponding PDX models confirmed preservation of histomorphology (HE histology) and molecular profile (Illumina Cancer Hotspot Panel) of the patients’ tumors. Accompanying flow cytometry on primary tumor specimens revealed a heterogeneous tumor microenvironment among individual cases and identified M2-like macrophages as positive predictors for engraftment. Vice versa, a high PD-L1 expression (combined positive score on tumor/immune cells) predicted PDX rejection. Conclusion Including biopsy samples from locally advanced or metastatic lesions from patients with non-surgical treatment strategies, increases the availability of PDX for basic and translational research. This facilitates (pre-) clinical studies for individual response prediction based on immunological biomarkers. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02047-w.
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Affiliation(s)
- Daniel Strüder
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Koerner", Rostock University Medical Center, Rostock, Germany
| | - Theresa Momper
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany
| | - Nina Irmscher
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany
| | - Mareike Krause
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany
| | - Jan Liese
- Department of Oral and Maxillofacial Surgery, Facial Plastic Surgery, Rostock University Medical Center, Rostock, Germany
| | - Sebastian Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Koerner", Rostock University Medical Center, Rostock, Germany
| | - Annette Zimpfer
- Institute of Pathology, Rostock University Medical Center, Rostock, Germany
| | - Sarah Zonnur
- Institute of Pathology, Rostock University Medical Center, Rostock, Germany
| | - Ann-Sophie Burmeister
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany
| | - Björn Schneider
- Institute of Pathology, Rostock University Medical Center, Rostock, Germany
| | - Bernhard Frerich
- Department of Oral and Maxillofacial Surgery, Facial Plastic Surgery, Rostock University Medical Center, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Koerner", Rostock University Medical Center, Rostock, Germany
| | - Christina Große-Thie
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany
| | - Christian Junghanss
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany
| | - Claudia Maletzki
- Department of Internal Medicine, Medical Clinic III - Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, Schillingallee 70, 18057, Rostock, Germany.
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Lönnecker J, Weiss NM, Heinrichs A, Mlynski R, Rettschlag S. Erratum zu: Untersuchung standardisierter Anamnesefragebögen zur Diagnostik und Differenzierung von obstruktiven und klaffenden Tubenfunktionsstörungen. HNO 2021; 69:97. [PMID: 34255095 PMCID: PMC8397675 DOI: 10.1007/s00106-021-01083-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- J Lönnecker
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - N M Weiss
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - A Heinrichs
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - R Mlynski
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - S Rettschlag
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland.
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Sprinzl G, Lenarz T, Hagen R, Baumgartner WD, Keintzel T, Keck T, Riechelmann H, Magele A, Salcher R, Maier H, Mlynski R, Radeloff A, Rak K, Riss D, Liepins R, Hamzavi S, Rasse T, Potzinger P, Schmutzhard J, Zorowka P, Mittmann P, Böheim K, Todt I. Long-Term, Multicenter Results With the First Transcutaneous Bone Conduction Implant. Otol Neurotol 2021; 42:858-866. [PMID: 33989254 DOI: 10.1097/mao.0000000000003159] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Investigation of long-term safety and performance of an active, transcutaneous bone conduction implant in adults and children up to 36 months post-implantation. STUDY DESIGN Prospective, single-subject repeated-measures design. SETTING Otolaryngology departments of eight German and Austrian hospitals.∗†‡§||¶#∗∗†† Affiliations listed above that did not participate in the study.‡‡§§||||¶¶. PATIENTS Fifty seven German-speaking patients (49 adults and eight children) suffering from conductive or mixed hearing loss, with an upper bone conduction threshold limit of 45 dB HL at frequencies between 500 and 3000 Hz. INTERVENTION Implantation of the Bonebridge transcutaneous bone conduction hearing implant (tBCI). MAIN OUTCOME MEASURES Patients' audiometric pure tone averages (PTA4) (0.5, 1, 2, 4 kHz) thresholds (air conduction, bone conduction, and sound field) and speech perception (word recognition scores [WRS] and speech reception thresholds [SRT50%]) were tested preoperatively and up to 36 months postoperatively. Patients were also monitored for adverse events and administered quality-of-life questionnaires. RESULTS Speech perception (WRS: pre-op: 17.60%, initial activation [IA]: 74.23%, 3M: 83.65%, 12M: 83.46%, 24M: 84.23%, 36M: 84.42%; SRT50%: pre-op: 65.56 dB SPL, IA: 47.67 dB SPL, 3M: 42.61 dB SPL, 12M: 41.11 dB SPL, 24M: 41.74 dB SPL, 36M: 42.43 dB SPL) and sound field thresholds (pre-op: 57.66 dB HL, IA: 33.82 dB HL, 3M: 29.86 dB HL, 12M: 28.40 dB HL, 24M: 28.22 dB HL, 36M: 28.52 dB HL) improved significantly at all aided postoperative visits. Air and bone conduction thresholds showed no significant changes, confirming preservation of patients' residual unaided hearing. All adverse events were resolved by the end of the study. CONCLUSIONS Safety and performance of the tBCI was demonstrated in children and adults 36 months postoperatively.
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Affiliation(s)
- Georg Sprinzl
- Ear, Nose and Throat Department, University Clinic St. Poelten, Karl Landsteiner Private University, St. Poelten
- Ear, Nose and Throat Department, University Clinic Innsbruck, Innsbruck
| | - Thomas Lenarz
- Department of Otorhinolaryngology, Hannover Medical School, Hannover
| | - Rudolf Hagen
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Würzburg
| | | | - Thomas Keintzel
- Ear, Nose and Throat Department, Klinikum Wels-Grieskirchen, Wels
| | - Tilmann Keck
- Ear, Nose and Throat Department, Elisabethinen Hospital, Graz
| | | | - Astrid Magele
- Ear, Nose and Throat Department, University Clinic St. Poelten, Karl Landsteiner Private University, St. Poelten
- Ear, Nose and Throat Department, University Clinic Innsbruck, Innsbruck
| | - Rolf Salcher
- Department of Otorhinolaryngology, Hannover Medical School, Hannover
| | - Hannes Maier
- Department of Otorhinolaryngology, Hannover Medical School, Hannover
| | - Robert Mlynski
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Würzburg
- Department of Otorhinolaryngology, University Medical Center Rostock, Rostock, Germany
| | - Andreas Radeloff
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Würzburg
- Ear, Nose and Throat Department, University Clinic Oldenburg, Oldenburg
| | - Kristen Rak
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Würzburg
| | - Dominik Riss
- Ear, Nose and Throat Department, University Clinic Vienna
| | | | - Sasan Hamzavi
- Ear, Nose and Throat Department, University Clinic Vienna
- Institute for Head and Neck Diseases, Lutheran Hospital Vienna, Vienna, Austria
| | - Thomas Rasse
- Ear, Nose and Throat Department, Klinikum Wels-Grieskirchen, Wels
| | - Peter Potzinger
- Ear, Nose and Throat Department, Elisabethinen Hospital, Graz
| | | | - Patrick Zorowka
- Ear, Nose and Throat Department, University Clinic Innsbruck, Innsbruck
- Department for Hearing, Speech and Voice Disorders, University Clinic Innsbruck, Innsbruck
| | - Philipp Mittmann
- Department of Otolaryngology at UKB, Hospital of the University of Berlin, Charité Medical School, Berlin
| | - Klaus Böheim
- Ear, Nose and Throat Department, University Clinic St. Poelten, Karl Landsteiner Private University, St. Poelten
| | - Ingo Todt
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Bielefeld, Germany
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Weiss N, Stallbaum T, Botzen J, Bächinger D, Großmann W, Bernd HE, Mlynski R. [Correction: Mastoid cavity obliteration with allogenic and autologous material]. Laryngorhinootologie 2021. [PMID: 34049416 DOI: 10.1055/a-1518-2834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nora Weiss
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Torben Stallbaum
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Jannik Botzen
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - David Bächinger
- Universität Zürich, Zürich, Switzerland
- Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie, UniversitätsSpital Zürich, Switzerland
| | - Wilma Großmann
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Hans Edgar Bernd
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Robert Mlynski
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
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31
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Weiss N, Stallbaum T, Botzen J, Bächinger D, Großmann W, Bernd HE, Mlynski R. [Mastoid cavity obliteration with allogenic and autologous material]. Laryngorhinootologie 2021; 101:40-44. [PMID: 33946124 DOI: 10.1055/a-1432-3123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Surgical obliteration is the treatment of choice for symptomatic mastoid cavities. Various methods and materials are available. Allogeneic material is easily available but can lead to wound infections due to rejection, granulation and inflammatory reactions. Consequently, autologous material is often preferred due to its good biocompatibility. The aim of this study was to compare the long-term outcomes of patients after mastoid cavity obliteration with allogeneic and autologous material with regard to the occurrence of recurrent cholesteatoma, the number of revision surgeries and the impact of surgery on the health-related quality of life. METHODS Patients who underwent mastoid cavity obliteration with an allogeneic material (hydroxyapatite matrix [HMM]) were retrospectively included in the study. In a prospective part, patients who underwent mastoid cavity obliteration with autologous reconstruction material (AutoM) were included. In addition to a detailed chart review, all patients underwent pure tone audiometry and completed the Zurich Chronic Middle Ear Inventory (ZCMEI-21) at the postoperative examination to assess health-related disease-specific quality of life. RESULTS A total of 22 patients with a mean age of 56.9 (SD 18.7 years) receiving HMM (mean follow-up interval: 88.3 months [SD 21.9 months]) and 25 patients with a mean age of 52.4 years (SD 13.7 years) receiving AutoM (mean follow-up interval: 13.5 months [SD 9.5 months]) were included in the study. The revision-free rate for audiological indication after one year was 100% for HMM and 85% for AutoM. The recurrence-free rate at one year was 95% for HMM and 100% for AutoM. 55% of the patients with alloplastic material and 8% of the patients with autologous material required revision surgery due to ear discharge or recurrent cholesteatoma. The groups did not differ in terms of postoperative hearing outcome or postoperative quality of life. DISCUSSION Obliteration of mastoid cavities is a surgical challenge. There was no relevant difference between the materials used in terms of recurrence rate, hearing and health-related quality of life within the 13.5-month observation period of both groups. The lack of subjective symptoms together with the high rate of recurrent cholesteatoma and revision indications emphasises the need for regular clinical follow-up including ear microscopy in chronic middle ear disease and strongly suggests regular follow-up examinations.
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Affiliation(s)
- Nora Weiss
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Torben Stallbaum
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Jannik Botzen
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - David Bächinger
- Universität Zürich, Zürich, Switzerland.,Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie, UniversitätsSpital Zürich, Switzerland
| | - Wilma Großmann
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Hans Edgar Bernd
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
| | - Robert Mlynski
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Germany
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Abstract
In 2021, the German Society of Otorhinolaryngology, Head and Neck Surgery is celebrating the 100th anniversary of its foundation. The aim of this article is to present the main inventions and progress made in Germany before 1921, the date the society was founded. Three chronological periods are discernible: the history of otorhinolaryngology (ORL) in Germany until the beginning of the 19th century, focusing mainly on the development of scattered knowledge; the birth of the sub-specialties otology, laryngology (pharyngo-laryngology and endoscopy), and rhinology in the 19th century, combining advances in knowledge and implementation of academic structures; and the creation of the ORL specialty at the turn of the 20th century, mainly concentrating on academic organization and expansion. This period was crucial and allowed for the foundation of the German Society of Otorhinolaryngology, Head and Neck Surgery on solid ground. Germany played an important role in the development and progress of ORL internationally in the 19th century with such great contributors as Anton von Tröltsch, Hermann Schwartze, Otto Körner, Rudolf Voltolini, and Gustav Killian to mention a few.
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Affiliation(s)
- Albert Mudry
- School of Medicine, Department of Otolaryngology, Head & Neck Surgery, Stanford University, 801 Welch Road, Stanford, USA
| | - Robert Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Germany.
| | - Burkhard Kramp
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Str. 137-139, 18057, Rostock, Germany
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van de Heyning P, Mertens G, Topsakal V, de Brito R, Wimmer W, Caversaccio MD, Dazert S, Volkenstein S, Zernotti M, Parnes LS, Staecker H, Bruce IA, Rajan G, Atlas M, Friedland P, Skarzynski PH, Sugarova S, Kuzovkov V, Hagr A, Mlynski R, Schmutzhard J, Usami SI, Lassaletta L, Gavilán J, Godey B, Raine CH, Hagen R, Sprinzl GM, Brown K, Baumgartner WD, Karltorp E. Two-phase survey on the frequency of use and safety of MRI for hearing implant recipients. Eur Arch Otorhinolaryngol 2021; 278:4225-4233. [PMID: 33788034 PMCID: PMC8486706 DOI: 10.1007/s00405-020-06525-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 11/26/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE Magnetic resonance imaging (MRI) is often used to visualize and diagnose soft tissues. Hearing implant (HI) recipients are likely to require at least one MRI scan during their lifetime. However, the MRI scanner can interact with the implant magnet, resulting in complications for the HI recipient. This survey, which was conducted in two phases, aimed to evaluate the safety and performance of MRI scans for individuals with a HI manufactured by MED-EL (MED-EL GmbH, Innsbruck, Austria). METHODS A survey was developed and distributed in two phases to HEARRING clinics to obtain information about the use of MRI for recipients of MED-EL devices. Phase 1 focused on how often MRI is used in diagnostic imaging of the head region of the cochlear implant (CI) recipients. Phase 2 collected safety information about MRI scans performed on HI recipients. RESULTS 106 of the 126 MRI scans reported in this survey were performed at a field strength of 1.5 T, on HI recipients who wore the SYNCHRONY CI or SYNCHRONY ABI. The head and spine were the most frequently imaged regions. 123 of the 126 scans were performed without any complications; two HI recipients experienced discomfort/pain. One recipient required reimplantation after an MRI was performed using a scanner that had not been approved for that implant. There was only one case that required surgical removal of the implant to reduce the imaging artefact. CONCLUSION Individuals with either a SYNCHRONY CI or SYNCHRONY ABI from MED-EL can safely undergo a 1.5 T MRI when it is performed according to the manufacturer's safety policies and procedures.
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Affiliation(s)
| | - Griet Mertens
- ENT Department, Antwerp University Hospital (UZA), Edegem/Antwerp, Belgium
| | - Vedat Topsakal
- ENT Department, Antwerp University Hospital (UZA), Edegem/Antwerp, Belgium
| | - Ruben de Brito
- Hospital for Rehabilitation of Cranio-Facial Anomalies, Bauru-Sao Paulo, Brazil
| | - Wilhelm Wimmer
- Department for ENT, Head and Neck Surgery, Bern University Hospital, Bern, Switzerland
| | - Marco D Caversaccio
- Department for ENT, Head and Neck Surgery, Bern University Hospital, Bern, Switzerland
| | - Stefan Dazert
- Bochum St. Elisabeth University Hospital, Bochum, Germany
| | | | - Mario Zernotti
- Córdoba Sanatorium Allende, Servicio de Otorrinolaryingologia (Servicio ORL), Córdoba, Argentina
| | - Lorne S Parnes
- London Health Sciences Center-University Hospital, London, Ontario, Canada
| | - Hinrich Staecker
- Department of Otorinolaryngology, Kansas University Center for Hearing and Balance Disorders, Kansas City, USA
| | - Iain A Bruce
- Pediatric ENT Department, Royal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.,Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Gunesh Rajan
- University of Western Australia, Crawley, Perth, Australia.,Department of Otolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, Luzern, Switzerland
| | - Marcus Atlas
- Ear Sciences Center, Lions Hearing Clinic, Subiaco, Australia
| | - Peter Friedland
- Ear Sciences Center, Lions Hearing Clinic, Subiaco, Australia
| | - Piotr H Skarzynski
- Institute of Sensory Organs, Nadarzyn/Kajetany, Poland.,Department of Teleaudiology and Screening, World Hearing Center of the Institute of Physiology and Pathology of Hearing, Kajetany, Poland
| | - Serafima Sugarova
- St. Petersburg ENT and Speech Research Institute, St. Petersburg, Russia
| | - Vladislav Kuzovkov
- St. Petersburg ENT and Speech Research Institute, St. Petersburg, Russia
| | - Abdulrahman Hagr
- King Abdullah Ear Specialist Center, King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Robert Mlynski
- Universität Rostock "Otto Körner", Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Rostock, Germany
| | | | | | | | | | - Benoit Godey
- Centre Hospitalier Universitaire (CHU) de Rennes, Rennes, France
| | | | - Rudolf Hagen
- Würzburg ENT University Hospital, Würzburg, Germany
| | | | - Kevin Brown
- UNC Ear and Hearing Center at Chapel Hill School of Medicine, Chapel Hill, NC, USA
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Mlynski R, Lüsebrink A, Oberhoffner T, Langner S, Weiss NM. Mapping Cochlear Duct Length to Electrically Evoked Compound Action Potentials in Cochlear Implantation. Otol Neurotol 2021; 42:e254-e260. [PMID: 33273309 DOI: 10.1097/mao.0000000000002957] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Objective measurements may assist in indicating cochlear implants and in predicting outcomes of cochlear implantation surgery. Using electrically evoked compound action potentials (ECAP), information about the function of the auditory nerve can be obtained by analyzing responses to electrical stimulation transmitted and derived by the recording electrode. The aim of this study was to determine whether ECAP characteristics differ depending on the stimulated intracochlear region and the size of the cochlea. STUDY DESIGN Retrospective cohort study. SETTING University Medical center, tertiary academic referral center. PATIENTS Patients undergoing cochlear implant surgery between 2015 and 2018. INTERVENTION Cochlear implantation with FLEXsoft electrode arrays (length 31.5 mm, 12 stimulating channels). MAIN OUTCOME MEASURES The cochlear duct length (CDL) and the cochlear coverage (CC) were measured using a new computed tomography-based software and correlated to the postoperative speech performance. Additionally, ECAP were measured and associated to the CDL. RESULTS A total of 59 ears of 53 cochlear implant users with a mean age of 63.6 (SD 14.9) years were included. The mean estimated CDL was 35.0 (SD 2.2) mm. The mean CC was 90.3% (SD 5.5%). A total of 4,873 ECAP were measured. A statistically significant, moderate, negative correlation between the ECAP slope and the site of stimulation was found (r = -0.29, 95% confidence interval: -0.32 to -0.27, p < 0.0001). No correlation between the CC and the speech performance was found (r = -0.08, 95% confidence interval: -0.33 to 0.18 p = 0.52). CONCLUSION ECAP slopes seem to be a reliable tool to identify the electrode's position inside the cochlea and also showed correlations to the anatomy of the patient. A combination of objective measurements such as anatomical parameters and ECAPs are helpful to assist the postoperative fitting and are promising tools to improve patient care.
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Affiliation(s)
- Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner"
| | - Adele Lüsebrink
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner"
| | | | - Soenke Langner
- Department of Radiology, Rostock University Medical Center, Rostock, Germany
| | - Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner"
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Abstract
Laser Doppler vibrometric (LDV) measurements on human temporal bones represent the standard method for predicting the performance of active middle ear implants (AMEI) and are used as preclinical tests in the development, approval process, and indication expansion of AMEI. The quality of the coupling of the floating mass transducer to the mobile structures of the middle ear is decisive for the performance of the implant and patients' hearing perception. The cochlea can be stimulated via the oval window (forward stimulation) or the round window (reverse stimulation). For forward stimulation, the ASTM standard F2504-05 defines a method to ensure physiologically normal properties of the temporal bones used in the experiments. For reverse stimulation, which depends even more critically on the quality of the temporal bone, a comparable standard method is lacking. Appropriate preparation and storage of the human petrous bone as well as suitable LDV test setups with respect to calibration and reproducibility of measuring positions and angles provide results that allow a comparison of different types of coupling and also correlate well with clinical data.
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Affiliation(s)
- S P Schraven
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Doberaner Straße 137-139, 18057, Rostock, Deutschland.
| | - D Dohr
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - N M Weiss
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - R Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - E Dalhoff
- Sektion für Physiologische Akustik und Kommunikation, Universitäts-HNO-Klinik Tübingen, Tübingen, Deutschland
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36
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Stöver T, Dazert S, Plontke SK, Kramer S, Ambrosch P, Arens C, Betz C, Beutner D, Bohr C, Bruchhage KL, Canis M, Dietz A, Guntinas-Lichius O, Hagen R, Hosemann W, Iro H, Klussmann JP, Knopf A, Lang S, Leinung M, Lenarz T, Löwenheim H, Matthias C, Mlynski R, Olze H, Park J, Plinkert P, Radeloff A, Rotter N, Rudack C, Bozzato A, Schipper J, Schrader M, Schuler PJ, Strieth S, Stuck BA, Volkenstein S, Westhofen M, Wolf G, Wollenberg B, Zahnert T, Zenk J, Hoffmann TK. [Effects of the SARS-CoV‑2 pandemic on the otolaryngology university hospitals in the field of research, student teaching and specialist training]. HNO 2021; 69:633-641. [PMID: 33502578 PMCID: PMC7839289 DOI: 10.1007/s00106-021-01001-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2021] [Indexed: 11/26/2022]
Abstract
Hintergrund Ab Frühjahr 2020 kam es zur weltweiten Verbreitung von SARS-CoV‑2 mit der heute als erste Welle der Pandemie bezeichneten Phase ab März 2020. Diese resultierte an vielen Kliniken in Umstrukturierungen und Ressourcenverschiebungen. Ziel unserer Arbeit war die Erfassung der Auswirkungen der Pandemie auf die universitäre Hals-Nasen-Ohren(HNO)-Heilkunde für die Forschung, Lehre und Weiterbildung. Material und Methoden Die Direktorinnen und Direktoren der 39 Universitäts-HNO-Kliniken in Deutschland wurden mithilfe einer strukturierten Online-Befragung zu den Auswirkungen der Pandemie im Zeitraum von März bis April 2020 auf die Forschung, Lehre und die Weiterbildung befragt. Ergebnisse Alle 39 Direktorinnen und Direktoren beteiligten sich an der Umfrage. Hiervon gaben 74,4 % (29/39) an, dass es zu einer Verschlechterung ihrer Forschungstätigkeit infolge der Pandemie gekommen sei. Von 61,5 % (24/39) wurde berichtet, dass pandemiebezogene Forschungsaspekte aufgegriffen wurden. Von allen Kliniken wurde eine Einschränkung der Präsenzlehre berichtet und 97,5 % (38/39) führten neue digitale Lehrformate ein. Im Beobachtungszeitraum sahen 74,4 % der Klinikdirektoren die Weiterbildung der Assistenten nicht gefährdet. Schlussfolgerung Die Ergebnisse geben einen Einblick in die heterogenen Auswirkungen der Pandemie. Die kurzfristige Bearbeitung pandemiebezogener Forschungsthemen und die Einführung innovativer digitaler Konzepte für die studentische Lehre belegt eindrücklich das große innovative Potenzial und die schnelle Reaktionsfähigkeit der HNO-Universitätskliniken, um auch während der Pandemie ihre Aufgaben in der Forschung, Lehre und Weiterbildung bestmöglich zu erfüllen.
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Affiliation(s)
- T Stöver
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Frankfurt a.M., Frankfurt a.M., Deutschland.
| | - S Dazert
- Klinik für Hals-Nasen-Ohrenheilkunde, Ruhr-Universität-Bochum, St. Elisabeth-Hospital, Bochum, Deutschland
| | - S K Plontke
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Halle/S., Halle/S., Deutschland
| | - S Kramer
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Frankfurt a.M., Frankfurt a.M., Deutschland
| | - P Ambrosch
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Kiel, Kiel, Deutschland
| | - C Arens
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
| | - C Betz
- Klinik und Poliklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Hamburg Eppendorf, Hamburg, Deutschland
| | - D Beutner
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Göttingen, Göttingen, Deutschland
| | - C Bohr
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Regensburg, Regensburg, Deutschland
| | - K-L Bruchhage
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Lübeck, Lübeck, Deutschland
| | - M Canis
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität München, LMU München, München, Deutschland
| | - A Dietz
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Leipzig, Leipzig, Deutschland
| | - O Guntinas-Lichius
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Jena, Jena, Deutschland
| | - R Hagen
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - W Hosemann
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Greifswald, Greifswald, Deutschland
- Helios Hanseklinikum Stralsund, Stralsund, Deutschland
| | - H Iro
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - J P Klussmann
- Klinik für Hals-Nasen-Ohrenheilkunde, Uniklinik Köln und Medizinische Fakultät, Universität zu Köln, Köln, Deutschland
| | - A Knopf
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Freiburg, Freiburg, Deutschland
| | - S Lang
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Essen, Essen, Deutschland
| | - M Leinung
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Frankfurt a.M., Frankfurt a.M., Deutschland
| | - T Lenarz
- Klinik für Hals-Nasen-Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - H Löwenheim
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - C Matthias
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Mainz, Mainz, Deutschland
| | - R Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Rostock, Deutschland
| | - H Olze
- Klinik für Hals-Nasen-Ohrenheilkunde, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - J Park
- Klinik für Hals-Nasen-Ohrenheilkunde, Universität Witten/Herdecke, Witten/Herdecke, Deutschland
| | - P Plinkert
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - A Radeloff
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Oldenburg, Oldenburg, Deutschland
| | - N Rotter
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Mannheim, Mannheim, Deutschland
| | - C Rudack
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Münster, Münster, Deutschland
| | - A Bozzato
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum des Saarlandes, Saarlandes, Deutschland
| | - J Schipper
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland
| | - M Schrader
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Minden, Minden, Deutschland
| | - P J Schuler
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Ulm, Ulm, Deutschland
| | - S Strieth
- Klinik und Poliklinik für Hals-Nasen-Ohren-Heilkunde, Universitätsklinikum Bonn, Bonn, Deutschland
| | - B A Stuck
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg, Philipps-Universität Marburg, Marburg, Deutschland
| | - S Volkenstein
- Klinik für Hals-Nasen-Ohrenheilkunde, Ruhr-Universität-Bochum, St. Elisabeth-Hospital, Bochum, Deutschland
| | - M Westhofen
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Aachen, Aachen, Deutschland
| | - G Wolf
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Standort Gießen, Justus-Liebig-Universität, Gießen, Deutschland
- Evangelisches Krankenhaus Düsseldorf, Düsseldorf, Deutschland
| | - B Wollenberg
- Klinik für Hals-Nasen-Ohrenheilkunde, Klinikum rechts der Isar der Technischen Universität München, München, Deutschland
| | - T Zahnert
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Dresden, Dresden, Deutschland
| | - J Zenk
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Augsburg, Augsburg, Deutschland
| | - T K Hoffmann
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Ulm, Ulm, Deutschland
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Quabius ES, Tribius S, Heinrichs A, Haaser D, Kühnel A, Laudien M, Hoppe F, Mlynski R, Ambrosch P, Hoffmann M. HPV DNA/RNA detection in various oral and oropharyngeal biomaterials identifies active HPV infections also in non-neoplastic tonsils. Transl Oncol 2020; 14:101002. [PMID: 33352503 PMCID: PMC7772224 DOI: 10.1016/j.tranon.2020.101002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
Previous studies describe a correlation between HPV-positivity and non-smoking in TSCC; p16INK4A-expression as surrogate-marker for HPV-DNA/RNA-positivity is discussed controversially. In the present study, these parameters are assessed prospectively. HPV-status of sputum and tonsillar-swabs was analyzed to determine their validity as surrogate-marker for tissue-HPV-status. TSCC- (n = 52) and non-neoplastic tonsillar tissue (n = 163) were analyzed. HPV-DNA- and HPV-RNA-status of total sputum, cellular fraction and supernatants, tonsillar-swabs and -tissue was determined by (RT)-PCR. Immunohistochemistry determined p16INK4A-expression. 23/163 (14.2%) non-neoplastic tonsils were HPV-DNA-positive; five patients (3 HPV16, 2 HPV11) had active HPV-infections (HPV-RNA-positive), in all biomaterials. 140/163 (85.9%) patients were either HPV-DNA-positive or HPV-DNA-negative in all samples. 21/52 (40.4%) TSCC-tonsils were HPV-DNA-positive; 17 patients were HPV-RNA-positive (14 HPV16; 4 HPV18). 40/52 (76.9%) TSCC-patients were congruent in all biomaterials. p16INK4A-expression alone would have misclassified the HPV-status of 14/52 (26.2%) TSCC-patients. This prospective study confirms the discrepancy between HPV-status and p16INK4A-expression and the significant correlation between non-smoking and HPV-DNA-positivity. HPV-sputum- and/or swab-results do not consistently match tissue-results, possibly having (detrimental) consequences if those were used to assess tissue-HPV-status. In the 5 patients with active HPV infection in the non-neoplasitic tonsils, tonsillectomy likely prevented subsequent development of TSCC.
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Affiliation(s)
- Elgar Susanne Quabius
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University Kiel, Arnold-Heller-Str. 3, Building 27, D24105 Kiel, Germany.
| | - Silke Tribius
- Hermann-Holthusen-Institute for Radiation Oncology, Asklepios Hospital St. Georg, Hamburg, Germany.
| | - Alessa Heinrichs
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Rostock, Germany.
| | - Dirk Haaser
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University Kiel, Arnold-Heller-Str. 3, Building 27, D24105 Kiel, Germany
| | - André Kühnel
- Department of Otorhinolaryngology, Head and Neck Surgery, Asklepios Hospital Harburg, Hamburg, Germany.
| | - Martin Laudien
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University Kiel, Arnold-Heller-Str. 3, Building 27, D24105 Kiel, Germany
| | - Florian Hoppe
- Department of Otorhinolaryngology-Head and Neck Surgery, Klinikum Oldenburg, Hoppe, Germany.
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Rostock, Germany.
| | - Petra Ambrosch
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University Kiel, Arnold-Heller-Str. 3, Building 27, D24105 Kiel, Germany
| | - Markus Hoffmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University Kiel, Arnold-Heller-Str. 3, Building 27, D24105 Kiel, Germany.
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Bächinger D, Großmann W, Mlynski R, Weiss NM. Characteristics of health-related quality of life in different types of chronic middle ear disease. Eur Arch Otorhinolaryngol 2020; 278:3795-3800. [PMID: 33242111 DOI: 10.1007/s00405-020-06487-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/10/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE Different types of chronic middle ear disease (CMED) present with differing severity of single symptoms, such as discharge, vertigo or hearing loss, which impair health-related quality of life (HRQoL). Here, we aimed to (i) investigate characteristics of HRQoL and (ii) evaluate the association between HRQoL and hearing among different types of CMED. METHODS In this prospective longitudinal cohort study, we included adult patients undergoing surgical treatment for CMED. Primary outcomes included HRQoL assessed by the Zurich Chronic Middle Ear Inventory (ZCMEI-21) and hearing assessed by pure-tone audiometry. RESULTS In the included 108 patients (51% females), CMED were chronic otitis media (COM) with (n = 46) or without (n = 22) cholesteatoma, persistent mastoid cavity (with [n = 15] or without [n = 10] recurrent cholesteatoma), revision ossiculoplasty for hearing restoration (n = 14), and postinflammatory meatal fibrosis (n = 1). Preoperatively, the mean ZCMEI-21 score showed statistically significant differences among different types of CMED (p = 0.007) with persistent mastoid cavity without cholesteatoma exhibiting the highest score (34.1, SD 7.7) indicating poor HRQoL. At a mean follow-up period of 183 days, no statistically significant differences in the ZCMEI-21 scores among different types of CMED were observed (p = 0.67). CONCLUSION This study objectifies differences in HRQoL among different types of CMED. In patients with indication for functional surgery only, e.g., persistent mastoid cavity without cholesteatoma, the worst HRQoL was observed. Yet, in these types of CMED, HRQoL guides decision for treatment. Moreover, differences in HRQoL among different types of CMED were not closely associated with hearing, but largely depended on other symptoms, such as discharge or vertigo.
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Affiliation(s)
- David Bächinger
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - Wilma Großmann
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", University Medical Centre, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", University Medical Centre, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", University Medical Centre, Doberaner Strasse 137-139, 18057, Rostock, Germany.
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Jung M, Mlynski R, Weiss NM. [Medical examination: Preparation for ENT specialisation : Part 51]. HNO 2020; 68:949-954. [PMID: 33021686 DOI: 10.1007/s00106-020-00943-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- M Jung
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - R Mlynski
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland
| | - N M Weiss
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock, Doberaner Straße 137-139, 18057, Rostock, Deutschland.
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40
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Quabius ES, Fazel A, Knieling C, Gebhardt S, Laudien M, Moore C, Kühnel A, Hoppe F, Mlynski R, Heinrichs A, Fabian A, Hoffmann M. No association between HPV-status in tonsillar tissue and sexual behavior of the patients in a northern German population - Critical view of the link between HPV natural history and HPV-driven carcinogenesis. Papillomavirus Res 2020; 10:100207. [PMID: 32971320 PMCID: PMC7554645 DOI: 10.1016/j.pvr.2020.100207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 01/09/2023]
Abstract
HPV-infection in patients with HNSCC is reportedly correlated with sexual behavior, age, and tobacco/alcohol-consumption. HPV-infections of the oral cavity are regarded as sexually transmitted. Comparable data of patient populations outside the U.S. are sparse or missing. Questionnaires regarding sexual behavior, education tobacco- and alcohol-consumption, were given to 28 patients with tonsillar hyperplasia (H) and 128 patients with tonsillar carcinomas (CA), all with tissue-typed HPV-DNA-status performing PCR. Answers were correlated among groups and HPV-status. 106 questionnaires were analyzed. Comparisons between H- (n = 25) and CA- (n = 81) patients showed that CA-patients were older (61.1yrs ± 9.3) than H-patients (45.2yrs ± 11.9; p < 0.0001; Student's t-test); had a lower educational level (p = 0.0095); and lower number of sexual partners (p = 0.0222; Fisher's exact test). All groups showed a significant correlation between smoking and lack of HPV-DNA-positivity (p = 0.001). Further Fisher's exact tests and logistic regression analysis revealed in all 106 patients no significant correlations between tissue-HPV-status and the analyzed parameters. Despite the limited sample size, we were able to confirm the established correlation between smoking and tissue-HPV-status. The correlation between sexual behavior and HPV-infection was not confirmed. No consensus exists in the literature about the latter. Our data does not support the strict classification of oral HPV-infections and HPV-driven HNSCCs as STDs. Questionnaires from 81 TSCC and 25 tonsillar hyperplasia (H) patients were analyzed. No correlation between HPV positivity and sexual behavior was found. HPV positive H had both less sexual partners and oral sex than HPV negatives (trend). In TSCC sexual partners and oral sex were similar irrespective of HPV status. Incongruent data about sexual behavior, HPV transmission and cancer transgression.
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Affiliation(s)
- Elgar Susanne Quabius
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Arnold-Heller-Str. 3, Building 27, D-24105, Kiel, Germany
| | - Asita Fazel
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Arnold-Heller-Str. 3, Building 27, D-24105, Kiel, Germany
| | - Christopher Knieling
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Arnold-Heller-Str. 3, Building 27, D-24105, Kiel, Germany
| | - Stephan Gebhardt
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Arnold-Heller-Str. 3, Building 27, D-24105, Kiel, Germany
| | - Martin Laudien
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Arnold-Heller-Str. 3, Building 27, D-24105, Kiel, Germany
| | - Crystal Moore
- Environment Agency, 2 Marsham Street, London, SW1P 4DF, UK
| | - André Kühnel
- Department of Otorhinolaryngology, Head and Neck Surgery, Asklepios Hospital Harburg, Eißendorfer Pferdeweg 52, D-21075, Hamburg, Germany
| | - Florian Hoppe
- Department of Otorhinolaryngology-Head and Neck Surgery, Klinikum Oldenburg, Rahel-Straus-Straße 10, D-26133, Oldenburg, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Rostock, Doberaner Str. 137-139, D-18057, Rostock, Germany
| | - Alessa Heinrichs
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Rostock, Doberaner Str. 137-139, D-18057, Rostock, Germany
| | - Alexander Fabian
- Department of Radiooncology, Christian-Albrechts-University, Arnold-Heller-Str, 3 Building, D-24105, Kiel, Germany
| | - Markus Hoffmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Arnold-Heller-Str. 3, Building 27, D-24105, Kiel, Germany.
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Fröhlich L, Rahne T, Plontke SK, Oberhoffner T, Dahl R, Mlynski R, Dziemba O, Aristeidou A, Gadyuchko M, Koscielny S, Hoth S, Kropp MH, Mir-Salim P, Müller A. Intraoperative quantification of floating mass transducer coupling quality in active middle ear implants: a multicenter study. Eur Arch Otorhinolaryngol 2020; 278:2277-2288. [PMID: 32880736 PMCID: PMC8165065 DOI: 10.1007/s00405-020-06313-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 08/19/2020] [Indexed: 11/28/2022]
Abstract
Purpose Evaluating the effectiveness of intraoperative auditory brainstem responses (ABRs) to stimulation by the Vibrant Soundbridge (VSB) active middle ear implant for quantifying the implant’s floating mass transducer (FMT) coupling quality. Methods In a diagnostic multicentric study, patients (> 18 years) who received a VSB with different coupling modalities were included. Pre- and postoperative bone conduction thresholds, intraoperative VSB-evoked ABR thresholds (VSB-ABR) using a modified audio processor programmed to preoperative bone conduction thresholds, postoperative vibrogram thresholds, and postoperative VSB-ABR thresholds were measured. Coupling quality was calculated from the difference between the pure tone average at 1000, 2000, and 4000 Hz (3PTA) vibrogram and postoperative 3PTA bone conduction thresholds. Results Twenty-three patients (13 males, 10 females, mean age 56.6 (± 12.5) years) were included in the study. Intraoperative VSB-ABR response thresholds could be obtained in all except one patient where the threshold was > 30 dB nHL. Postoperatively, an insufficient coupling of 36.7 dB was confirmed in this patient. In a Bland–Altman analysis of the intraoperative VSB-ABRs and coupling quality, the limits of agreement exceeded ± 10 dB, i.e., the maximum allowed difference considered as not clinically important but the variation was within the general precision of auditory brainstem responses to predict behavioral thresholds. Five outliers were identified. In two patients, the postoperative VSB-ABR thresholds were in agreement with the coupling quality, indicating a change of coupling before the postoperative testing. Conclusion The response thresholds recorded in this set-up have the potential to predict the VSB coupling quality and optimize postoperative audiological results.
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Affiliation(s)
- Laura Fröhlich
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale), Ernst-Grube-Str. 40, 06120, Halle (Saale), Germany.
| | - Torsten Rahne
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale), Ernst-Grube-Str. 40, 06120, Halle (Saale), Germany
| | - Stefan K Plontke
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale), Ernst-Grube-Str. 40, 06120, Halle (Saale), Germany
| | - Tobias Oberhoffner
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Rüdiger Dahl
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Oliver Dziemba
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine of Greifswald, Greifswald, Germany
| | - Aristotelis Aristeidou
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine of Greifswald, Greifswald, Germany
| | - Maria Gadyuchko
- Department of Otorhinolaryngology, Institute of Phoniatry/Pedaudiology, Jena University Hospital, Friedrich-Schiller-University Jena, Jena, Germany.,Department of Otorhinolaryngology, Helios Clinic, Erfurt, Germany
| | - Sven Koscielny
- Department of Otorhinolaryngology, Institute of Phoniatry/Pedaudiology, Jena University Hospital, Friedrich-Schiller-University Jena, Jena, Germany
| | - Sebastian Hoth
- Department of ENT, University of Heidelberg, Heidelberg, Germany
| | - Miriam H Kropp
- ORL Department Friedrichshain Clinic, Vivantes Hearing Center, Berlin, Germany
| | - Parwis Mir-Salim
- ORL Department Friedrichshain Clinic, Vivantes Hearing Center, Berlin, Germany
| | - Alexander Müller
- ORL Department Friedrichshain Clinic, Vivantes Hearing Center, Berlin, Germany
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Van Bonn SM, Schraven SP, Schuldt T, Heimesaat MM, Mlynski R, Warnke PC. Chronic otitis media following infection by non-O1/non-O139 Vibrio cholerae: A case report and review of the literature. Eur J Microbiol Immunol (Bp) 2020; 10:186-191. [PMID: 32796134 PMCID: PMC7592514 DOI: 10.1556/1886.2020.00013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/08/2020] [Indexed: 12/18/2022] Open
Abstract
We report a case of a chronic mesotympanic otitis media with a smelly purulent secretion from both ears and recurrent otalgia over the last five years in a six-year-old girl after swimming in the German Baltic Sea. Besides Staphylococcus aureus a non-O1/non-O139 Vibrio cholerae strain could be isolated from patient samples. An antibiotic therapy with ciprofloxacin and ceftriaxone was administered followed by atticotomy combined with tympanoplasty. We conclude that V. cholerae should not be overlooked as a differential diagnosis to otitis infections, especially when patients present with extra-intestinal infections after contact with brackish- or saltwater aquatic environments.
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Affiliation(s)
- Sara M Van Bonn
- 1Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner Rostock University Medical Center, Rostock, Germany
| | - Sebastian P Schraven
- 1Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner Rostock University Medical Center, Rostock, Germany
| | - Tobias Schuldt
- 1Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner Rostock University Medical Center, Rostock, Germany
| | - Markus M Heimesaat
- 3Institute of Microbiology, Infectious Diseases and Immunology Charité - University Medicine Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Robert Mlynski
- 1Department of Otorhinolaryngology, Head and Neck Surgery, Otto Körner Rostock University Medical Center, Rostock, Germany
| | - Philipp C Warnke
- 2Institute of Medical Microbiology, Virology and Hygiene, Rostock University Medicical Center, Rostock, Germany
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Stöver T, Dazert S, Hoffmann TK, Plontke SK, Ambrosch P, Arens C, Betz C, Beutner D, Bohr C, Bruchhage KL, Canis M, Dietz A, Guntinas-Lichius O, Hagen R, Hosemann W, Iro H, Klussmann JP, Knopf A, Kramer S, Lang S, Leinung M, Lenarz T, Löwenheim H, Matthias C, Mlynski R, Olze H, Park J, Plinkert P, Radeloff A, Rotter N, Rudack C, Bozzato A, Schipper J, Schrader M, Strieth S, Stuck BA, Volkenstein S, Westhofen M, Wolf G, Wollenberg B, Zahnert T, Zenk J. [Effects of the SARS-CoV-2 pandemic on the otorhinolaryngology university hospitals in the field of medical care]. Laryngorhinootologie 2020; 99:694-706. [PMID: 32767296 PMCID: PMC7645814 DOI: 10.1055/a-1232-4911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Since December 2019, the SARS-CoV-2 virus has been rapidly spreading worldwide. In Germany, an exponential increase in the number of infections was registered at the beginning of March 2020 and led to a call of the Ministry of Health to create more capacity for intensive medical treatment in hospitals. The aim of the present study was to determine the effects of the SARS-CoV-2 pandemic on Oto-Rhino-Laryngology (ORL) university hospitals regarding patient care. MATERIALS AND METHODS An online survey was sent out to all chairmen of the 39 ORL university hospitals in Germany. The answers to the questions referred to the defined period from March 15th to April 15th 2020 and were carried out using the online survey tool "SurveyMonkey". 87 questions focused on general information, health care, and structural effects in the respective institution. RESULTS All chairmen of the 39 university hospitals in Germany participated in the survey. The collected data prove the considerable impact on organizational, structural and medical aspects of patient care. For example, the surveyed clinics reported a decrease in outpatient cases by 73.8 % to 26.2 ± 14.2 % and in surgical treatments by 65.9 % to 34.1 ± 13.9 %. In contrast, emergency treatment remained unchanged or even increased in 80 % of the facilities and surgical treatment of emergency patients remained unchanged or even increased in more than 90 %. Emergency outpatient and surgical treatment of patients was provided throughout the pandemic in all facilities. In total, about 35 000 outpatients and about 12 000 surgical cases were postponed. As a result of the acute structural changes, the potential danger of falling below current treatment standards was seen in individual areas of patient care. DISCUSSION The assessment of the impact of the SARS-CoV-2 pandemic is heterogeneous. The majority of the chairmen are critically aware of the risk of falling below current medical treatment standards or guidelines. In the phase of an exponential increase in the number of infections, significant changes in treatment processes had to be accepted for understandable reasons. However, with the currently significantly reduced number of infections, falling below treatment standards and guidelines should not be allowed to remain constant and tolerated. SUMMARY This study shows a differentiated picture with regard to the effects of the SARS-CoV-2 pandemic on outpatient, inpatient and operative patient care at the ORL university hospitals in Germany and illustrates the importance of these institutions for ensuring patient care during this critical phase.
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Affiliation(s)
- T Stöver
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Frankfurt a. M
| | - S Dazert
- Klinik für Hals-Nasen-Ohrenheilkunde, Ruhr-Universität-Bochum, St. Elisabeth-Hospital
| | - T K Hoffmann
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Ulm
| | - S K Plontke
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Halle/S
| | - P Ambrosch
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Kiel
| | - C Arens
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Magdeburg
| | - C Betz
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Hamburg Eppendorf
| | - D Beutner
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Göttingen
| | - C Bohr
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Regensburg
| | - K-L Bruchhage
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Lübeck
| | - M Canis
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität München, LMU München
| | - A Dietz
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Leipzig
| | | | - R Hagen
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Würzburg
| | - W Hosemann
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Greifswald
| | - H Iro
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Erlangen
| | - J-P Klussmann
- Klinik für Hals-Nasen-Ohrenheilkunde, Uniklinik Köln und Medizinische Fakultät, Universität zu Köln
| | - A Knopf
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Freiburg
| | - S Kramer
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Frankfurt a. M
| | - S Lang
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Essen
| | - M Leinung
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Frankfurt a. M
| | - T Lenarz
- Klinik für Hals-Nasen-Ohrenheilkunde, Medizinische Hochschule Hannover
| | - H Löwenheim
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Tübingen
| | - C Matthias
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Mainz
| | - R Mlynski
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie "Otto Körner", Universitätsmedizin Rostock
| | - H Olze
- Klinik für Hals-Nasen-Ohrenheilkunde, Charité Berlin
| | - J Park
- Klinik für Hals-Nasen-Ohrenheilkunde, Universität Witten/Herdecke
| | - P Plinkert
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Heidelberg
| | - A Radeloff
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Oldenburg
| | - N Rotter
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Mannheim
| | - C Rudack
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Münster
| | - A Bozzato
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum des Saarlandes
| | - J Schipper
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Düsseldorf
| | - M Schrader
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Minden
| | - S Strieth
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Bonn
| | - B A Stuck
- Klinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg, Philipps-Universität Marburg
| | - S Volkenstein
- Klinik für Hals-Nasen-Ohrenheilkunde, Ruhr-Universität-Bochum, St. Elisabeth-Hospital
| | - M Westhofen
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Aachen
| | - G Wolf
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Standort Gießen, Justus-Liebig-Universität, Gießen
| | - B Wollenberg
- Klinik für Hals-Nasen-Ohrenheilkunde, Klinikum rechts der Isar der Technischen Universität München
| | - T Zahnert
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Dresden
| | - J Zenk
- Klinik für Hals-Nasen-Ohrenheilkunde, Universitätsklinikum Augsburg
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Weiss NM, Óvári A, Oberhoffner T, Demaret L, Bicer A, Schraven S, Ehrt K, Dahl R, Schneider A, Mlynski R. Automated detection of electrically evoked stapedius reflexes (eSR) during cochlear implantation. Eur Arch Otorhinolaryngol 2020; 278:1773-1779. [PMID: 32748185 PMCID: PMC8131305 DOI: 10.1007/s00405-020-06226-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/17/2020] [Indexed: 12/01/2022]
Abstract
Introduction In cochlear implantation, objective fitting methods are needed to optimize audiological results in small children or patients with poor compliance. Intraoperatively measured electrically evoked stapedius reflexes (eSR) can be used as a marker for the patient’s discomfort level. The aim of this study was to develop and evaluate an automated detection method for eSR and to compare it to the detection rate of the surgeon and independent observers. Methods Cochlear implantation using a fully digital surgical microscope was performed. Movements of the stapedius tendon were recorded and analyzed by means of computer vision technique. Differences in eSR elicited by stimulating electrodes at different cochlear locations (basal, middle and apical) were analyzed. The eSR detection rate of the image processing algorithm was compared to the surgeon’s detection rate and to those of two less experienced observers. Results A total of 387 electrically impulses were applied. The stimulation of middle turn electrodes showed significantly higher detection rates (50.4%) compared to the basal (40.0%; p = 0.001) and apical (43.6%; p = 0.03) turn. The software identified significantly more of the applied stimuli (58.4%) compared to the surgeon (46.3%; p = 0.0007), the intermediate observer (37.7%; p < 0.0001) and the unexperienced observer (41.3%; p < 0.0001). Conclusion The feasibility of an automated intraoperative software-based detection of eSR is demonstrated. By improving the eSR detection methods and their clinical applicability, their utility in objective cochlear implant fitting may be substantially increased.
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Affiliation(s)
- Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Attila Óvári
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.,Department of Otorhinolaryngology, Head and Neck Surgery, Asklepios Klinik St. Georg, Hamburg, Germany
| | - Tobias Oberhoffner
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | | | - Atabek Bicer
- ARRI Medical GmbH, Türkenstraße 89, 80799, München, Germany
| | - Sebastian Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Karsten Ehrt
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Rüdiger Dahl
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | | | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.
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Bächinger D, Rrahmani A, Weiss NM, Mlynski R, Huber A, Röösli C. Evaluating hearing outcome, recidivism and complications in cholesteatoma surgery using the ChOLE classification system. Eur Arch Otorhinolaryngol 2020; 278:1365-1371. [PMID: 32661718 PMCID: PMC8057966 DOI: 10.1007/s00405-020-06208-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/08/2020] [Indexed: 11/28/2022]
Abstract
Purpose To establish a standardized reporting system of cholesteatoma, the ChOLE classification has recently been introduced. We here aimed to systematically investigate the association between the ChOLE classification and (i) hearing, (ii) recidivism rate, and (iii) postoperative complications. These data may increase the utility of the ChOLE classification in clinical practice and research by stratifying patients according to expected outcomes or risks for complications. Methods In this prospective multicentric study, we included adult patients undergoing tympanomastoid surgery due to cholesteatoma. Main outcome measures included the association of the ChOLE classification system with (i) audiometric data including air conduction (AC) and bone conduction (BC) pure-tone average (PTA), and the air–bone gap (ABG), (ii) recidivism and complication. Results A total of 160 patients suffering from cholesteatoma were included. ChOLE stage distribution was stage I in 23 (14%), stage II in 128 (80%), and stage III in 9 (6%) patients. The ChOLE stage was associated with the postoperative AC PTA (p = 0.05) and the postoperative BC PTA (p = 0.02). Further, the status of the ossicular chain after surgery (ChOLE subdivision “O”) was associated with both the postoperative ABG (p = 0.0001) and the postoperative AC PTA (p = 0.003). Moreover, we found an association between complications (ChOLE subdivision “L) and both the postoperative BC PTA (p = 0.04) and the postoperative ABG (p = 0.04). No association between the ChOLE stage was found to both cholesteatoma recidivism and surgical complications. Conclusion The ChOLE classification is a new system to classify cholesteatomas. We provide evidence that hearing outcomes vary among different ChOLE stages. In particular, hearing outcomes are associated with the ChOLE subdivision “O” and “L”. Thus, the ChOLE classification system has a predictive value regarding hearing outcomes.
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Affiliation(s)
- David Bächinger
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Frauenklinikstrasse 24, 8091, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | | | - Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Rostock, Germany
| | - Alexander Huber
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Frauenklinikstrasse 24, 8091, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - Christof Röösli
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Frauenklinikstrasse 24, 8091, Zurich, Switzerland. .,University of Zurich, Zurich, Switzerland.
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Weiss NM, Schneider A, Hempel JM, Uecker FC, van Bonn SM, Schraven SP, Rettschlag S, Schuldt T, Müller J, Plontke SK, Mlynski R. Evaluating the didactic value of 3D visualization in otosurgery. Eur Arch Otorhinolaryngol 2020; 278:1027-1033. [PMID: 32613353 PMCID: PMC7954761 DOI: 10.1007/s00405-020-06171-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/23/2020] [Indexed: 11/25/2022]
Abstract
Introduction Improvements of surgical visualization add value to the quality of clinical routine and offer the opportunity to improve surgical education of medical staff. The aim of this study was to determine whether otorhinolaryngology trainees gain additional comprehension of the anatomical structures and the surgical site when 3D visualization is used. Methods Data were collected from ENT trainees of microsurgical courses of the middle ear, inner ear and lateral skull base at four university ENT departments (Charité (Berlin), Martin Luther University Halle-Wittenberg (Halle/Saale), Ludwig Maximilian University (Munich) and Rostock University Medical Center). Participants were asked to complete a questionnaire assessing the subjective value of identical surgical field visualization in 3D for surgeon and observer. Results A total of 112 participants completed the questionnaire. The majority of participants stated a high additional value of 3D visualization compared to 2D visualization, with 75% fully agreeing to the statement that 3D visualization of the surgical field is superior to perceive the anatomical topography and structures compared to 2D representation. Participants encouraged the storage of data in online learning platforms. Conclusion The results show that 3D visualization with identical imaging for surgeon and observer is a useful tool in teaching of microsurgery. It addresses perception of anatomical topography and structures as well as conception of the surgical workflow. Electronic supplementary material The online version of this article (10.1007/s00405-020-06171-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.
| | - Armin Schneider
- ARRI Medical GmbH, Türkenstraße 89, 80799, Munich, Germany
- Research Group Minimally Invasive Interdisciplinary Therapeutical Intervention (MITI), "Klinikum rechts der Isar", Technical University Munich (TUM), Munich, Germany
| | - John M Hempel
- Department of Otorhinolaryngology, Head and Neck Surgery, "Ludwig Maximilian University", University Medical Center Munich, Munich, Germany
| | - Florian C Uecker
- Department of Otorhinolaryngology, Head and Neck Surgery, "Charité" University Medical Center, Berlin, Germany
| | - Sara M van Bonn
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Sebastian P Schraven
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Stefanie Rettschlag
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Tobias Schuldt
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Joachim Müller
- Department of Otorhinolaryngology, Head and Neck Surgery, "Ludwig Maximilian University", University Medical Center Munich, Munich, Germany
| | - Stefan K Plontke
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
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Rahne T, Skarzynski PH, Hagen R, Radeloff A, Lassaletta L, Barbara M, Plontke SK, Mlynski R. A retrospective European multicenter analysis of the functional outcomes after active middle ear implant surgery using the third generation vibroplasty couplers. Eur Arch Otorhinolaryngol 2020; 278:67-75. [PMID: 32451668 PMCID: PMC7814408 DOI: 10.1007/s00405-020-06064-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 05/15/2020] [Indexed: 11/28/2022]
Abstract
Purpose To evaluate the safety and performance of three novel vibroplasty couplers that allow attachment of the floating mass transducer of a transcutaneous active middle ear implant (AMEI) to the round window (RW) membrane, the long process (LP), or the incus body and the short process (SP) of the incus. Methods Retrospective multicenter cohort study of 25 AMEI users with sensorineural or mixed hearing loss that were among the first implanted with an AMEI vibrating ossicular prosthesis in combination with the third generation of vibroplasty couplers between 2014 and 2016. Main Outcome Measures were bone-conduction pure-tone and vibroplasty thresholds, postoperative aided sound field thresholds and postoperative aided word recognition score (WRS). Results Bone conduction threshold changes of more than 10 dB in 4PTABC were observed in two subjects. A mean improvement of 57.8% in speech recognition was observed with a mean WRS at 65 dB SPL improving from 14.8% (SD 21.9%) preoperatively to a mean aided score of 72.6% (SD 18.6%). Sound field thresholds improved from an average 4PTASF of 64.1 dB HL (SD 9.8 dB HL) to 37.0 dB HL (SD 8.9 dB HL), resulting in a mean functional gain of 27.1 dB. There was no significant difference in WRS or functional gain between the coupler types. Conclusion Initial experience shows that all three third generation vibroplasty couplers represent safe and efficient attachment options for the FMT allowing the surgeon to choose the coupling type based on the present pathology.
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Affiliation(s)
- Torsten Rahne
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale), Halle (Saale), Germany.
| | - Piotr Henryk Skarzynski
- Department of Teleaudiology and Screening, World Hearing Center, Institute of Physiology and Pathology of Hearing, Warsaw, Poland.,Heart Failure and Cardiac Rehabilitation Department, 2nd Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland.,Institute of Sensory Organs, Kajetany, Poland
| | - Rudolf Hagen
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Würzburg, Würzburg, Germany
| | - Andreas Radeloff
- Department of Otorhinolaryngology, University of Oldenburg, Oldenburg, Germany
| | - Luis Lassaletta
- Department of Otolaryngology, La Paz University Hospital, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-U761), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Maurizio Barbara
- NESMOS Department, Otorhinolaryngology Clinic, University Hospital Sant'Andrea, Sapienza University, Rome, Italy
| | - Stefan K Plontke
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale), Halle (Saale), Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", University Medical Center Rostock, Rostock, Germany
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Weiss NM, Bächinger D, Rrahmani A, Bernd HE, Huber A, Mlynski R, Röösli C. Mapping the ChOLE classification to hearing outcomes and disease-specific health-related quality of life. Eur Arch Otorhinolaryngol 2020; 277:2729-2738. [PMID: 32372258 PMCID: PMC7496049 DOI: 10.1007/s00405-020-06002-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/20/2020] [Indexed: 11/25/2022]
Abstract
Objectives To investigate the association between the “ChOLE” classification, hearing outcomes and disease-specific health-related quality of life (HRQoL). Methods In two tertiary referral centers, patients requiring primary or revision surgery for cholesteatoma were assessed for eligibility. Audiometric assessment was performed pre- and postoperatively. The ChOLE classification was determined intraoperatively and via the preoperative CT scan. HRQoL was assessed pre- and postoperatively using the Zurich Chronic Middle Ear Inventory (ZCMEI-21). Results A total of 87 patients (mean age 45.2 years, SD 16.2) were included in this study. ChOLE stage I cholesteatoma was found in 8 (9%), stage II cholesteatoma was found in 65 (75%), and stage III cholesteatoma was found in 14 (16%) patients. Postoperatively, the mean air–bone gap (0.5, 1, 2, 3 kHz) was significantly smaller than before surgery (14.3 dB vs. 23.0 dB; p = 0.0007). The mean ZCMEI-21 total score significantly decreased after surgery (26.8 vs. 20.7, p = 0.004). No correlation between the ZCMEI-21 total score and both the ChOLE stage and the extent of the cholesteatoma (ChOLE subdivision “Ch”) was found. A trend towards worse HRQoL associated with a poorer status of the ossicular chain (ChOLE subdivision “O”) was observed. The audiometric outcomes were not associated with the extent of the cholesteatoma. The ChOLE subdivision describing the ossicular status showed a strong association with the pre- and postoperative air conduction (AC) thresholds. Further, the ZCMEI-21 total score and its hearing subscore correlated with the AC thresholds. Conclusion The ChOLE classification does not show a clear association with HRQoL measured by the ZCMEI-21. The HRQoL neither seems to be associated with the extent of the disease nor with the ossicular chain status. Yet, surgical therapy significantly improved HRQoL by means of reduced ZCMEI-21 total scores, which were strongly associated with the AC thresholds. Intraoperative assessment of a cholesteatoma using the ChOLE classification and HRQoL complement each other and provide useful information.
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Affiliation(s)
- Nora M Weiss
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.
| | - David Bächinger
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | | | - Hans E Bernd
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Alexander Huber
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - Robert Mlynski
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Christof Röösli
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
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Weiss NM, Langner S, Mlynski R, Roland P, Dhanasingh A. Evaluating Common Cavity Cochlear Deformities Using CT Images and 3D Reconstruction. Laryngoscope 2020; 131:386-391. [PMID: 32246777 DOI: 10.1002/lary.28640] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aim of this study is to compare the common cavity (CC) with the normal anatomy inner ear in order to evaluate whether the cavity is representing both the cochlear and the vestibular parts of the inner ear and to revisit CC deformity from a three-dimensional (3D) perspective. METHODS High-resolution computed tomography image datasets of 17 temporal bones initially identified as CC were evaluated with 3D reconstruction and multiplanar image analysis using a free available software for 3D segmentation of the inner ear. All 3D images of CC were compared to a normal inner ear. Maximum and minimum diameter of the CC were correlated with the circumference of the CC in an axial plane. RESULTS In 13 cases (76%), CC represented only the vestibular part of the inner ear and did not represent CC as defined here and by Sennaroglu, Kontorinis, and Khan. True CC was correctly diagnosed in only one case (6%). In three cases (18%), a rudimentary part of the cochlear portion could be identified. The axes' length of the elliptical cavity showed a strong positive linear relation to the circumference of the cavity (long axis: r = 0.94; P < .0001; short axis: r = 0.68; P = .0029). CONCLUSION This study supports the assumption that many reported CC cases only represent the vestibular part of the inner ear and are therefore cases of cochlear aplasia. 3D segmentation and systematic analysis of CT-imaging add clinical value to the comprehension of the morphology of the anatomical structures of the inner ear. LEVEL OF EVIDENCE 2C Laryngoscope, 131:386-391, 2021.
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Affiliation(s)
- Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Koerner", Rostock University Medical Center, Rostock, Germany
| | - Soenke Langner
- Institute of Diagnostic and Interventional Radiology, Pediatric and Neuroradiology, Rostock University Medical Center, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Koerner", Rostock University Medical Center, Rostock, Germany
| | - Peter Roland
- Department of Otolaryngology-Head and Neck Surgery and Neurological Surgery, University of Texas; Southwestern Medical Center in Dallas, Dallas, Texas, U.S.A
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Weiss NM, Bächinger D, Botzen J, Großmann W, Mlynski R. Mastoid cavity obliteration leads to a clinically significant improvement in health-related quality of life. Eur Arch Otorhinolaryngol 2020; 277:1637-1643. [PMID: 32144569 PMCID: PMC7198475 DOI: 10.1007/s00405-020-05881-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 02/21/2020] [Indexed: 12/19/2022]
Abstract
Objective To assess the change in health-related quality of life (HRQoL) in patients undergoing mastoid cavity obliteration. Methods Patients who had undergone canal wall-down mastoidectomy for chronic otitis media with creation of a persistent mastoid cavity and underwent revision tympanomastoid surgery including mastoid cavity obliteration using autologous material were included. Audiological measurements including air conduction (AC) and bone conduction (BC) pure-tone averages (PTA) and the air–bone gap (ABG) were assessed. Health-related Quality of Life (HRQoL) was assessed by the Zurich Chronic Middle Ear Inventory (ZCMEI-21) pre- and postoperatively. Results A total of 25 patients (16 females and 9 males; mean age 51.6 years, 14 right and 11 left ears) were included. Patients were reexamined after a mean follow-up period of 9.2 months (SD = 6.5) after obliteration of the mastoid cavity. Compared to the preoperative visit, patients showed a significantly reduced AC PTA at the postoperative visit (mean difference: − 4.1; SD = 10.4, p = 0.045). The mean ZCMEI-21 score changed from 31.7 (SD = 14.5) preoperatively to 17.4 (SD = 15.1) postoperatively (mean difference: − 14.3; SD = 19.1; p = 0.0002). The mean ZCMEI-21 score changes were neither correlated to the AC PTA shift (p = 0.60) nor to the ABG shift (p = 0.66). Conclusions This is the first study reporting a highly significant and clinically important improvement in HRQoL after mastoid cavity obliteration in a prospective setting. The improvement in HRQoL was not correlated to the hearing improvement. As a clinical implication, we provide evidence for a substantial subjective benefit of the surgical obliteration of a symptomatic mastoid cavity and, therefore, encourage this surgical procedure.
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Affiliation(s)
- Nora M Weiss
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany.
| | - David Bächinger
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - Jannik Botzen
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Wilma Großmann
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
| | - Robert Mlynski
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Körner", Rostock University Medical Center, Doberaner Strasse 137-139, 18057, Rostock, Germany
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