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Calabrese F, Pasta A, Bodini G, Furnari M, Zentilin P, Giannini EG, Maniero D, Della Casa D, Cataudella G, Frazzoni M, Penagini R, Elena A, de Bortoli N, Visaggi P, Savarino V, Savarino E, Marabotto E. Applying Lyon consensus criteria in the work-up of patients with extra-oesophageal symptoms - A multicentre retrospective study. Aliment Pharmacol Ther 2024; 59:1134-1143. [PMID: 38445690 DOI: 10.1111/apt.17934] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND The diagnosis of gastro-oesophageal reflux disease (GERD) based on otolaryngologist's assessment of laryngoscopic findings remains contentious in terms of sensitivity and specificity. AIMS To evaluate GERD prevalence, applying Lyon 2.0 Consensus criteria, in patients with extra-oesophageal symptoms undergoing laryngoscopic examination and impedance-pH monitoring. METHODS In this retrospective assessment, we included 470 patients with extra-oesophageal symptoms, either isolated or combined with typical symptoms, who had been referred to six tertiary Italian Gastroenterology Units between January and December 2020. Of these, 274 underwent 24-h impedance-pH monitoring and laryngoscopy off PPI therapy. GERD diagnosis followed Lyon Consensus 2.0 criteria, incorporating mean nocturnal baseline impedance when pH-impedance monitoring was inconclusive. RESULTS Laryngoscopic examination revealed pathological findings (predominantly posterior laryngitis) in 71.2% (195/274). GERD was diagnosed in 29.2% (80/274) via impedance-pH monitoring. The prevalence of GERD in patients with positive or negative laryngoscopy was similar (32.3% vs. 21.5%, p = 0.075). No significant difference in proximal reflux occurrences was noted between positive and negative laryngoscopy groups (33.3% vs. 24.1%, p = 0.133). Laryngoscopy demonstrated sensitivity and specificity of 78.8% and 32.0%, respectively, with a positive predictive value (PPV) of 32.3% and negative predictive value (NPV) of 28.4%. In contrast, a threshold of four concurrent laryngoscopic signs, identified in only eight patients, demonstrated a PPV of 93.8% and a NPV of 73.6% (sensitivity 25.4%, specificity 99.2%). CONCLUSION This study underscores the limited diagnostic accuracy of laryngoscopy, emphasising the necessity of impedance-pH monitoring for confirming GERD diagnoses using Lyon 2.0 criteria in patients with suspected extra-oesophageal symptoms.
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Affiliation(s)
- Francesco Calabrese
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Policlinico San Martino, Genoa, Italy
| | - Andrea Pasta
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Giorgia Bodini
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Policlinico San Martino, Genoa, Italy
| | - Manuele Furnari
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Policlinico San Martino, Genoa, Italy
| | - Patrizia Zentilin
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Policlinico San Martino, Genoa, Italy
| | - Edoardo G Giannini
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Policlinico San Martino, Genoa, Italy
| | - Daria Maniero
- Gastroenterology Unit, Azienda Ospedale Università di Padova, Padua, Italy
| | - Domenico Della Casa
- Department of Surgical-Surgery Endoscopy, Spedali Civili, University of Brescia, Brescia, Italy
| | | | - Marzio Frazzoni
- Digestive Pathophysiology Unit, Baggiovara Hospital, Modena, Italy
| | - Roberto Penagini
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi, Milan, Italy
| | - Arsiè Elena
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi, Milan, Italy
| | - Nicola de Bortoli
- Gastrointestinal Unit-Department of Translational Sciences and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Pierfrancesco Visaggi
- Gastrointestinal Unit-Department of Translational Sciences and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Vincenzo Savarino
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Edoardo Savarino
- Gastroenterology Unit, Azienda Ospedale Università di Padova, Padua, Italy
| | - Elisa Marabotto
- Gastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Policlinico San Martino, Genoa, Italy
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Tao X, Zhao X, Liu H, Wang J, Tian C, Liu L, Ding Y, Chen X, Liu Y. Automatic Recognition of Concealed Fish Bones under Laryngoscopy: A Practical AI Model Based on YOLO-V5. Laryngoscope 2024; 134:2162-2169. [PMID: 37983879 DOI: 10.1002/lary.31175] [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: 08/04/2023] [Revised: 09/27/2023] [Accepted: 10/24/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Fish bone impaction is one of the most common problems encountered in otolaryngology emergencies. Due to their small and transparent nature, as well as the complexity of pharyngeal anatomy, identifying fish bones efficiently under laryngoscopy requires substantial clinical experience. This study aims to create an AI model to assist clinicians in detecting pharyngeal fish bones more efficiently under laryngoscopy. METHODS Totally 3133 laryngoscopic images related to fish bones were collected for model training and validation. The images in the training dataset were trained using the YOLO-V5 algorithm model. After training, the model was validated and its performance was evaluated using a test dataset. The model's predictions were compared to those of human experts. Seven laryngoscopic videos related to fish bone were used to validate real-time target detection by the model. RESULTS The model trained in YOLO-V5 demonstrated good generalization and performance, with an average precision of 0.857 when the intersection over union (IOU) threshold was set to 0.5. The precision, recall rate, and F1 scores of the model are 0.909, 0.818, and 0.87, respectively. The overall accuracy of the model in the validation set was 0.821, comparable to that of ENT specialists. The model processed each image in 0.012 s, significantly faster than human processing (p < 0.001). Furthermore, the model exhibited outstanding performance in video recognition. CONCLUSION Our AI model based on YOLO-V5 effectively identifies and localizes fish bone foreign bodies in static laryngoscopic images and dynamic videos. It shows great potential for clinical application. LEVEL OF EVIDENCE 3 Laryngoscope, 134:2162-2169, 2024.
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Affiliation(s)
- Xiaoyao Tao
- Otorhinolaryngology Head and Neck Surgery Department, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xu Zhao
- Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Hairui Liu
- School of Information Engineering, China University of Geosciences, Beijing, China
| | - Jinqiao Wang
- Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Chunhui Tian
- Otolaryngology-Head and Neck Surgery Department, Suzhou Hospital of Anhui Medical University, Suzhou, China
| | - Longsheng Liu
- Otolaryngology-Head and Neck Surgery Department, Chaohu Hospital of Anhui Medical University, Hefei, China
| | - Yujie Ding
- Otolaryngology-Head and Neck Surgery Department, Feixi County People's Hospital, Hefei, China
| | - Xue Chen
- Otolaryngology-Head and Neck Surgery Department, Feidong County People's Hospital, Hefei, China
| | - Yehai Liu
- Otorhinolaryngology Head and Neck Surgery Department, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Bacak BJ, Castle MS, Barbot C, Srikantha L, Stern NA, Vandjelovic ND. Airway Involvement and Intervention in Non-ACE-Inhibitor-Induced Angioedema. Laryngoscope 2024; 134:2282-2287. [PMID: 37902118 DOI: 10.1002/lary.31127] [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: 05/15/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/31/2023]
Abstract
OBJECTIVES Characterize the presentation of patients with non-angiotensin-converting enzyme inhibitor (ACEI)-induced angioedema and determine risk factors associated with patient disposition and possible need for airway intervention. METHODS The medical records of adult patients in the Emergency Department (ED) and diagnosed with non-ACEI-induced angioedema over 4.5 years were included. Demographics, vital signs, etiology, timeline, presenting symptoms, physical exam including flexible laryngoscopy, medical management, and disposition were examined. Statistical analyses were conducted using SPSS V 23.0 software calculating and comparing means, standard deviations, medians, and correlation of categorical and ordinate variables. RESULTS A total of 181 patients with non-ACEI-induced angioedema were evaluated with flexible laryngoscopy by otolaryngology. Notably, 11 patients (6.1%) required airway intervention and were successfully intubated. Statistically significant factors (p ≤ 0.05) associated with airway intervention included the diastolic blood pressure (DBP) and mean arterial pressure (MAP) (p = 0.006 and 0.01 respectively), symptoms of dysphonia (p = 0.018), the presence of oropharyngeal, supraglottic, and hypopharyngeal edema (p ≤ 0.001 for each site), and the number of edematous anatomic subsites documented on physical exam (p < 0.001). Other patient demographics, prior history of angioedema, heart rate, systolic blood pressure, symptom onset, number of symptoms at presentation, and medication administered in the ED did not correlate with airway intervention. CONCLUSION Dysphonia, DBP, MAP, anatomic location of edema and edema in multiple sites are associated with airway intervention and a higher level of care in non-ACEI-induced angioedema and can be useful in risk assessment in patient management. LEVEL OF EVIDENCE 4 Laryngoscope, 134:2282-2287, 2024.
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Affiliation(s)
- Bartholomew J Bacak
- Department of Otolaryngology - Head and Neck Surgery, University of Rochester Medical Center, Rochester, New York, U.S.A
| | - Michael S Castle
- Department of Otolaryngology - Head and Neck Surgery, University of Rochester Medical Center, Rochester, New York, U.S.A
| | - Chantal Barbot
- Department of Otolaryngology - Head and Neck Surgery, Detroit Medical Center, Detroit, Michigan, U.S.A
| | - Luxman Srikantha
- Department of Otolaryngology - Head and Neck Surgery, Detroit Medical Center, Detroit, Michigan, U.S.A
| | - Noah A Stern
- Department of Otolaryngology - Head and Neck Surgery, Detroit Medical Center, Detroit, Michigan, U.S.A
| | - Nathan D Vandjelovic
- Department of Otolaryngology - Head and Neck Surgery, University of Rochester Medical Center, Rochester, New York, U.S.A
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Sastre JA, Gómez-Ríos MA, López T, Gutiérrez-Couto U, Casans-Francés R. Dynamic versus standard bougies for tracheal intubation with direct or indirect laryngoscopy in simulated or real scenarios: a systematic review and meta-analysis. Expert Rev Med Devices 2024:1-12. [PMID: 38655581 DOI: 10.1080/17434440.2024.2344667] [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: 01/20/2024] [Accepted: 04/02/2024] [Indexed: 04/26/2024]
Abstract
INTRODUCTION This systematic review and meta-analysis aimed to compare the efficacy of dynamic versus standard bougies to achieve tracheal intubation. METHODS We searched MEDLINE, Embase, CENTRAL, Web of Science, Scopus and Google Scholar on 10 October 2023. We included clinical trials comparing both devices. The primary outcome was the first-attempt intubation success rate. The secondary outcome was the time required for tracheal intubation. RESULTS Eighteen studies were included. Dynamic bougies do not increase first-attempt success rate (RR 1.11; p = 0.06) or shorten tracheal intubation time (MD -0.30 sec; p = 0.84) in clinical trials in humans. In difficult airways, first-attempt success intubation rate was greater for dynamic bougies (RR 1.17; p = 0.002); Additionally, they reduced the time required for intubation (MD -4.80 sec; p = 0.001). First-attempt intubation success rate was higher (RR 1.15; p = 0.01) and time to achieve intubation was shorter when using Macintosh blades combined with dynamic bougies (MD -5.38 sec; p < 0.00001). Heterogeneity was high. CONCLUSION Dynamic bougies do not increase the overall first-pass success rate or shorten tracheal intubation time. However, dynamic bougies seem to improve first-attempt tracheal intubation rate in patients with difficult airways and in those intubated with a Macintosh blade. Further research is needed for definitive conclusions. REGISTRATION OF PROSPERO CRD42023472122.
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Affiliation(s)
- José A Sastre
- Department of Anesthesiology, Salamanca University Hospital, Salamanca, Spain
| | - Manuel A Gómez-Ríos
- Department of Anesthesiology and Perioperative Medicine, Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain
| | - Teresa López
- Department of Anesthesiology, Salamanca University Hospital, Salamanca, Spain
| | - Uxía Gutiérrez-Couto
- Department of Librarry Science and Documentation, Complejo Hospitalario Universitario de Ferrol, Ferrol, Spain
| | - Rubén Casans-Francés
- Department of Anesthesiology, Hospital Universitario Infanta Elena, Valdemoro, Madrid, Spain
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Gautam M, Yadav SK, Agarwal P, Sharma D. Low cost smart phone based laryngoscopy for the assessment of vocal cords in patients undergoing thyroid surgery: A pilot study. Trop Doct 2024:494755241246823. [PMID: 38654398 DOI: 10.1177/00494755241246823] [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] [Indexed: 04/25/2024]
Abstract
Can a smart phone application be reliably used for laryngoscopy? This thesis was tested for peri-operative evaluation of vocal cords in patients undergoing thyroid and parathyroid surgery.
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Affiliation(s)
- Maithily Gautam
- Junior Resident, Department of Surgery, NSCB Medical College, Jabalpur, MP, India
| | - Sanjay Kumar Yadav
- Assistant Professor, Department of Surgery, NSCB Medical College, Jabalpur, MP, India
| | - Pawan Agarwal
- Professor, Department of Surgery, NSCB Medical College, Jabalpur, (MP) India
| | - Dhananjaya Sharma
- Professor and Head, Department of Surgery, NSCB Medical College, Jabalpur, MP, India
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Marković D, Šurbatović M, Milisavljević D, Marjanović V, Stošić B, Stanković M. Prediction of a Difficult Airway Using the ARNE Score and Flexible Laryngoscopy in Patients with Laryngeal Pathology. Medicina (Kaunas) 2024; 60:619. [PMID: 38674265 PMCID: PMC11051977 DOI: 10.3390/medicina60040619] [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] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 03/29/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024]
Abstract
Background and Objectives: The ARNE score was developed for the prediction of a difficult airway for both general and ear, nose and throat (ENT) surgery with a universal cut-off value. We tested the accuracy of this score in the case of laryngeal surgery and provided an insight into its effects in combination with flexible laryngoscopy. Materials and Methods: This prospective pilot clinical study included 100 patients who were being scheduled for microscopic laryngeal surgery. We calculated the ARNE score for every patient, and flexible laryngoscopy was provided preoperative. Difficult intubation was assessed according to the intubation difficulty score (IDS). Results: A total of 33% patients had difficult intubation according to the IDS. The ARNE score showed limited accuracy for the prediction of difficult intubation in laryngology with p < 0.0001 and an AUC of 0.784. Flexible laryngoscopy also showed limitations when used as an independent parameter with p < 0.0001 and an AUC of 0.766. We defined a new cut-off value of 15.50 for laryngology, according to the AUC. After the patients were divided into two groups, according to the new cut-off value and provided cut-off value, the AUC improved to 0.707 from 0.619, respectively. Flexible laryngoscopy improved the prediction model of the ARNE score to an AUC of 0.882 and of the new cut-off value to an AUC of 0.833. Conclusions: It is recommended to use flexible laryngoscopy together with the ARNE score in difficult airway prediction in patients with laryngeal pathology. Also, the universally recommended cut-off value of 11 cannot be effectively used in laryngology, and a new cut-off value of 15.50 is recommended.
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Affiliation(s)
- Danica Marković
- Clinic for Anesthesiology and Intensive Therapy, University Clinical Center in Niš, 18000 Niš, Serbia; (V.M.); (B.S.)
| | - Maja Šurbatović
- Clinic for Anesthesiology and Intensive Therapy, Military Medical Academy, 11000 Belgrade, Serbia;
- Faculty of Medicine of the Military Medical Academy, University of Defence, 11000 Belgrade, Serbia
| | - Dušan Milisavljević
- Otolaryngology Clinic, University Clinical Center in Niš, 18000 Niš, Serbia; (D.M.); (M.S.)
- Department Otorhinolaryngology, Faculty of Medicine, Univeristy in Niš, 18000 Niš, Serbia
| | - Vesna Marjanović
- Clinic for Anesthesiology and Intensive Therapy, University Clinical Center in Niš, 18000 Niš, Serbia; (V.M.); (B.S.)
- Department Surgery and Anesthesiology and Reanimatology, Faculty of Medicine, University in Niš, 18000 Niš, Serbia
| | - Biljana Stošić
- Clinic for Anesthesiology and Intensive Therapy, University Clinical Center in Niš, 18000 Niš, Serbia; (V.M.); (B.S.)
- Department Surgery and Anesthesiology and Reanimatology, Faculty of Medicine, University in Niš, 18000 Niš, Serbia
| | - Milan Stanković
- Otolaryngology Clinic, University Clinical Center in Niš, 18000 Niš, Serbia; (D.M.); (M.S.)
- Department Otorhinolaryngology, Faculty of Medicine, Univeristy in Niš, 18000 Niš, Serbia
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Choudhary A, Singh S, Singh S, Alam F, Kumar H. Bispectral index-guided comparison of dexmedetomidine and fentanyl as an adjuvant with propofol to achieve an adequate depth for endotracheal intubation - A double-blind randomised controlled trial. Indian J Anaesth 2024; 68:334-339. [PMID: 38586256 PMCID: PMC10993930 DOI: 10.4103/ija.ija_884_23] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 04/09/2024] Open
Abstract
Background and Aims Laryngoscopy and tracheal intubation require an adequate depth of anaesthesia. The study's primary objective was to compare the time needed to achieve the bispectral index (BIS)-guided adequate depth of anaesthesia for endotracheal intubation using fentanyl and dexmedetomidine. Methods After institutional ethics committee clearance and written informed consent, this randomised study was conducted on 140 patients of either gender between 18 and 60 years who were scheduled for elective surgeries under general anaesthesia. Patients were randomised to intravenous dexmedetomidine 1 μg/kg (Group D) or fentanyl 2 μg/kg (Group F). The drugs were given as an intravenous infusion over 10 min before induction of anaesthesia. The primary outcome was the time required to achieve BIS 50. Normally distributed variables were compared using Student's t-test, and non-normally distributed variables were compared using the Mann-Whitney U test. Qualitative data were analysed using Chi-square/Fisher's exact test. A P value <0.05 was considered significant. Results The time to achieve BIS 50 was lesser in Group F, 1546 (27) as compared to Group D, 1558 (11) s [mean difference (95% confidence interval (CI) 12[5.11, 18.89]), P < 0.001]. Haemodynamic parameters were comparable at all time points between both the groups, except heart rate, which was significantly lower. Propofol consumption was significantly less in group D than in group F [125.9 (25.36) versus 157.3 (42.80) mg, respectively, mean difference (95% CI) 31.4 (-44.16 to -20.63) P < 0.001)]. Conclusion Dexmedetomidine achieves BIS 50 faster and has a propofol-sparing effect as compared to fentanyl.
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Affiliation(s)
- Annu Choudhary
- Department of Anaesthesiology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
| | - Swati Singh
- Department of Anaesthesiology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
| | - Swati Singh
- Department of Anaesthesiology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
| | - Faseehullah Alam
- Department of Anaesthesiology, CISRO Hospital, Patna, Bihar, India
| | - Harsh Kumar
- Department of Anaesthesiology, Indira Gandhi Institute of Medical Sciences, Patna, Bihar, India
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Clarysse C, Meulemans J, van Lierde C, Laenen A, Delaere P, Vander Poorten V. Prospective Evaluation and Validation of the Laryngoscore and the mini-Laryngoscore. Laryngoscope 2024; 134:1807-1812. [PMID: 37772920 DOI: 10.1002/lary.31083] [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: 06/03/2023] [Revised: 08/22/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023]
Abstract
OBJECTIVE The Laryngoscore was described in 2014 as a practical preoperative assessment tool to predict difficult laryngeal exposure (DLE) during transoral approaches to the larynx. In 2019 the authors proposed a version with a reduced number of variables, called the mini-Laryngoscore. We aim to critically appraise and externally validate these two tools and if needed and possible, to optimize these tools. METHODS 103 consecutive patients who underwent a microlaryngoscopy between November 2017 and June 2020 at the Leuven University Hospitals were prospectively included and subjected to a presurgical evaluation of 15 parameters and a peroperative scoring of the anterior commissure visualization. Subsequent analysis focused on the concordance of our findings with those of Piazza et al., the discriminatory ability of the test, and the validity of the included items. We then evaluated a modified prediction tool. RESULTS Of 103 patients, 18 (17.5%) had DLE. The Laryngoscore and mini-Laryngoscore predicted this with a "good" C-index of respectively 0.727 (95%CI: 0.608-0.846) and 0.714 (95%CI: 0.605-0.823). A newly created prediction tool including only three parameters (Interincisors gap, upper jaw dental status and previous treatments) showed a better discriminatory ability (C-index = 0.835, 95%CI: 0.726-0.944) than the original Laryngoscore, a finding that needs further external validation. CONCLUSION The original Laryngoscore and the mini-Laryngoscore displayed a good discriminative ability. Some parameters can be left out of the Laryngoscore without losing discrimination. An even better prediction model seems possible, using a weighted sum of selected predictor variables and by using the parameters in their continuous form. LEVEL OF EVIDENCE 2 Laryngoscope, 134:1807-1812, 2024.
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Affiliation(s)
- Camille Clarysse
- Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Jeroen Meulemans
- Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Leuven, Belgium
- Department of Oncology, Section Head and Neck Oncology, KU Leuven, Leuven, Belgium
| | - Charlotte van Lierde
- Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Leuven, Belgium
- Department of Oncology, Section Head and Neck Oncology, KU Leuven, Leuven, Belgium
| | - Annouschka Laenen
- Leuven Biostatistics and Statistical Bioinformatics Centre, KU Leuven, Leuven, Belgium
| | - Pierre Delaere
- Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Leuven, Belgium
- Department of Oncology, Section Head and Neck Oncology, KU Leuven, Leuven, Belgium
| | - Vincent Vander Poorten
- Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Leuven, Belgium
- Department of Oncology, Section Head and Neck Oncology, KU Leuven, Leuven, Belgium
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Abedzadeh E, Modir H, Pazooki S, Barsari FZ, Almasi-Hashiani A. Comparison of adding magnesium sulfate, dexmedetomidine and ondansetron to lidocaine for gargling before laryngoscopy and endotracheal intubation to prevent sore throat: a randomized clinical trial. Med Gas Res 2024; 14:54-60. [PMID: 37929508 DOI: 10.4103/2045-9912.372664] [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] [Indexed: 03/31/2023] Open
Abstract
Postoperative sore throat is one well-recognized complication, occurring most frequently following tracheal intubation. Effective prevention of postoperative sore throat has been recognized as a top priority, bringing pleasant feelings and satisfaction to patients. This study aimed to assess the efficacy of magnesium sulfate, dexmedetomidine and ondansetron gargle with lidocaine administrated prior to laryngoscopy and tracheal intubation for postoperative sore throat prevention alongside hemodynamic management. This double-blind randomized clinical trial enrolled 105 general anesthesia-administered patients who had undergone laryngoscopy and endotracheal intubation, and they were equally randomized into three groups: magnesium sulfate, dexmedetomidine, and ondansetron groups. No significant intergroup difference was seen in oxygen saturation, non-invasive blood pressure, heart rate, duration of surgery, postoperative complications, analgesic consumption, and incidence of cough and hoarseness. The results showed statistically significant intergroup differences in pain scores and average pain intensity in the dexmedetomidine group was significantly lower than the other groups. Results suggest that dexmedetomidine gargle with lidocaine before general anesthesia induction could be recommended as an option depending on the patient's general condition and the anesthesiologist's discretion.
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Affiliation(s)
- Erfaneh Abedzadeh
- Student Research Committee, Arak University of Medical Sciences, Arak, Iran
| | - Hesameddin Modir
- Departments of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | - Shirin Pazooki
- Departments of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | | | - Amir Almasi-Hashiani
- Department of Epidemiology, School of Health, Arak University of Medical Sciences Arak; Traditional and Complementary Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
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Coelho LP, Couto TB. Can video laryngoscopy and supplemental oxygen redefine pediatric, infant and neonatal tracheal intubation standards? Transl Pediatr 2024; 13:508-512. [PMID: 38590366 PMCID: PMC10998985 DOI: 10.21037/tp-23-530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/05/2024] [Indexed: 04/10/2024] Open
Affiliation(s)
- Laila Pinto Coelho
- Postgraduate Medical Education Department, University of São Paulo Faculty of Medicine, São Paulo, Brazil
| | - Thomaz Bittencourt Couto
- Pediatric Emergency Department, Instituto da Criança do Hospital das Clínicas, Children’s Hospital, University of São Paulo Faculty of Medicine, São Paulo, Brazil
- Simulation Center, Hospital Israelita Albert Einstein, São Paulo, Brazil
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Petzoldt M, Grün C, Wünsch VA, Bauer M, Hardel TT, Grensemann J. In reply: Parallel intubation technique with the Vie Scope ® laryngoscope. Can J Anaesth 2024; 71:437-438. [PMID: 38243095 PMCID: PMC10923732 DOI: 10.1007/s12630-023-02685-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 01/21/2024] Open
Affiliation(s)
- Martin Petzoldt
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Catharina Grün
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Viktor A Wünsch
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marcus Bauer
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tim T Hardel
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jörn Grensemann
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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12
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Chen C, Liu F, Fang J, Sima L, Ni L, Xiang S, Xia S. Clinical Characteristics and Prognosis of Infants and Children <3 Years of Age With Thyroglossal Duct Cyst Complicated With a Parapharyngeal Mass: A Case Series Study. Clin Pediatr (Phila) 2024; 63:318-324. [PMID: 37139812 DOI: 10.1177/00099228231171784] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Thyroglossal duct cysts (TGDCs) are congenital and developmental abnormalities in infants and young children. This retrospective case series study examined the characteristics of 7 patients <3 years (mean age, 1.9 years) with TGDC complicated with a parapharyngeal mass treated at one hospital between January 2019 and 2022. Four patients had a painless mass around the neck, 2 had a painless mass associated with snoring, and 1 presented repeated swelling and pain. B-ultrasound suggested 6 cases of TGDC and 1 possible lymphangioma. All patients were treated with Sistrunk surgery to remove the TGDC. Six patients had no cyst recurrence during follow-up (6 months to 2 years). In conclusion, TGDC complicated with a parapharyngeal mass has complex and variable clinical manifestations. Completely removing the cyst while sparing thyroid cartilage and surrounding vascular and neuroanatomical structures is important to avoid complications. The patients are likely to be free from recurrence after surgery.
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Affiliation(s)
- Caidi Chen
- Department of Otolaryngology Head & Neck Surgery, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Fanli Liu
- Department of Otolaryngology Head & Neck Surgery, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jianjing Fang
- Department of Ultrasonography, Wuma Street Community Health Service Center of Lucheng District, Wenzhou, China
| | - Linyuan Sima
- Department of Otolaryngology Head & Neck Surgery, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Liyan Ni
- Department of Otolaryngology Head & Neck Surgery, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Songjie Xiang
- Department of Otolaryngology Head & Neck Surgery, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Siwen Xia
- Department of Otolaryngology Head & Neck Surgery, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
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13
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Sawant U, Sen J. A Comprehensive Review of Magnesium Sulfate Infusion: Unveiling the Impact on Hemodynamic Stability During Laryngoscopy and Tracheal Intubation in Ear, Nose, and Throat Surgeries. Cureus 2024; 16:e57002. [PMID: 38681416 PMCID: PMC11046371 DOI: 10.7759/cureus.57002] [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: 01/25/2024] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
This comprehensive review explores the potential of magnesium sulfate infusion in mitigating hemodynamic instability during laryngoscopy and tracheal intubation in ear, nose, and throat (ENT) surgeries. Hemodynamic fluctuations during these procedures pose challenges, and magnesium sulfate, with its vasodilatory, antiarrhythmic, and neuroprotective properties, emerges as a promising intervention. The review critically examines existing literature, emphasizing patient selection criteria, dosage protocols, and a comparative analysis with other hemodynamic stabilizers. Safety considerations, including known adverse effects and risk-benefit assessments, and monitoring and management strategies are elucidated. The implications for ENT surgery are discussed, highlighting the potential for enhanced hemodynamic management and individualized approaches. The review concludes with a call for continued research, emphasizing the ongoing evolution of understanding and practice incorporating magnesium sulfate into perioperative care. The insights offered aim to guide clinicians in navigating this dynamic landscape for improved patient outcomes in ENT surgeries.
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Affiliation(s)
- Urvi Sawant
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Jayashree Sen
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
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14
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Marino GA, Garrett CG, Tate AD. Frenotomy Provides Improved Direct Laryngoscopy Exposure in Select Adult Patients With Ankyloglossia. Ear Nose Throat J 2024:1455613231223355. [PMID: 38380620 DOI: 10.1177/01455613231223355] [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] [Indexed: 02/22/2024] Open
Abstract
Objective: To analyze the effects of lingual frenotomy on adults with restrictive ankyloglossia and difficult direct laryngoscopy exposure. Methods: A case series study was conducted. Restriction of tongue protrusion due to ankyloglossia was identified in 2 patients who had a history of suboptimal true vocal fold (TVF) exposure on direct laryngoscopy for phonomicrosurgery. Inadequate exposure of the vocal folds was achieved on direct laryngoscopy attempts with manual tongue protrusion. Mandibular tori were not present in these patients. An intraoperative lingual frenotomy was performed in both patients. Results: After frenotomy and with manual tongue protrusion, direct laryngoscopy exposure was substantially improved allowing for considerably more visualization of the anterior TVFs. Conclusion: Lingual frenulum procedures with manual tongue protrusion should be considered in select adult patients with restrictive ankyloglossia affecting optimal direct laryngoscopy exposure.
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Affiliation(s)
- Gustavo A Marino
- Department of Otolaryngology-Head and Neck Surgery, San Antonio Military Medical Center, San Antonio, TX, USA
| | - C Gaelyn Garrett
- Vanderbilt Voice Center, Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alan D Tate
- Department of Otolaryngology-Head and Neck Surgery, San Antonio Military Medical Center, San Antonio, TX, USA
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15
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Hosri J, Aoun J, Yammine Y, Ghadieh J, Hamdan A. The sensitivity of laryngeal findings in predicting high-grade dysplasia in patients with vocal fold leukoplakia undergoing office-based biopsies: A retrospective analysis of 100 cases. Laryngoscope Investig Otolaryngol 2024; 9:e1209. [PMID: 38362176 PMCID: PMC10866589 DOI: 10.1002/lio2.1209] [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: 10/23/2023] [Revised: 12/12/2023] [Accepted: 12/21/2023] [Indexed: 02/17/2024] Open
Abstract
Objective To investigate the sensitivity of laryngeal findings in predicting high-grade dysplasia/carcinoma in situ (CIS) and squamous cell carcinoma (SCC) in patients with vocal fold leukoplakia. Methods A retrospective review of the medical records and video recordings of the laryngeal examination of patients with vocal fold leukoplakia who underwent un-sedated office-based laryngeal biopsy in a tertiary referral center between January 2022 and August 2023 was conducted. Laryngeal findings included the size, surface, projection, and edges of the lesion. Vocal fold leukoplakia was classified according to the WHO as benign, low-grade dysplasia, high-grade dysplasia/CIS, and squamous cell carcinoma. Results Seventy patients with 100 vocal fold leukoplakia were included. Size was found to have the highest sensitivity with an AUC of 0.730 (95% CI [0.618-0.842], p = 0.002) followed by surface and projection with AUCs of 0.672 (95% CI [0.548-0.795], p = 0.019) and 0.675 (95% CI [0.546-0.804], p = 0.017), respectively. Furthermore, the odds of diagnosing high-risk lesions (high-grade dysplasia/CIS and SCC) were the greatest when the lesion was large and rough (OR = 10.28; 95% CI [3.08-34.36]). Conclusion The morphological features of vocal fold leukoplakia may assist the physician in predicting the risk of malignancy. Large and rough lesions were more likely to harbor high-grade dysplasia/CIS and SCC compared to small and smooth lesions.
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Affiliation(s)
- Jad Hosri
- Department of Otolaryngology‐Head and Neck SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
| | - Jessica Aoun
- Department of Pathology and Laboratory MedicineAmerican University of Beirut Medical CenterBeirutLebanon
| | - Yara Yammine
- Department of Otolaryngology‐Head and Neck SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
| | - Justin Ghadieh
- Faculty of MedicineAmerican University of BeirutBeirutLebanon
| | - Abdul‐Latif Hamdan
- Department of Otolaryngology‐Head and Neck SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
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16
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Jeppesen K, Philipsen BB, Mehlum CS. Prevalence and characterisation of exercise-induced laryngeal obstruction in patients with exercise-induced dyspnoea. J Laryngol Otol 2024; 138:208-215. [PMID: 37646338 PMCID: PMC10849894 DOI: 10.1017/s0022215123001494] [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: 05/05/2023] [Revised: 07/03/2023] [Accepted: 07/18/2023] [Indexed: 09/01/2023]
Abstract
OBJECTIVE The prevalence of exercise-induced laryngeal obstruction is largely unknown. This study aimed to evaluate the prevalence of this condition in a selected study population of patients with exercise-induced dyspnoea. METHOD A retrospective analysis was conducted of demographic data, co-morbidities, medication, symptoms, performance level of sporting activities, continuous laryngoscopy exercise test results and subsequent treatment. RESULTS Data from 184 patients were analysed. The overall prevalence of exercise-induced laryngeal obstruction in the study population was 40 per cent, and the highest prevalence was among females aged under 18 years (61 per cent). However, a high prevalence among males aged under 18 years (50 per cent) and among adults regardless of gender (34 per cent) was also found. CONCLUSION The prevalence of exercise-induced laryngeal obstruction is clinically relevant regardless of age and gender. Clinicians are encouraged to consider exercise-induced laryngeal obstruction as a possible diagnosis in patients suffering from exercise-induced respiratory symptoms. No single characteristic that can distinguish exercise-induced laryngeal obstruction from other similar conditions was identified.
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Affiliation(s)
- Karin Jeppesen
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Southern Denmark, Sønderborg, Denmark
| | - Bahareh Bakhshaie Philipsen
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark
| | - Camilla Slot Mehlum
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark
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Singla A, Saraswat RK, Bharadwaj A, Singh S. Nebulized Versus Intravenously Administered Dexmedetomidine for Obtunding Hemodynamic Responses to Laryngoscopy and Tracheal Intubation: A Randomized Double-Blind Comparative Study. Cureus 2024; 16:e54768. [PMID: 38524064 PMCID: PMC10961112 DOI: 10.7759/cureus.54768] [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] [Accepted: 02/23/2024] [Indexed: 03/26/2024] Open
Abstract
Introduction Intravenous dexmedetomidine is known to cause major adverse effects such as bradycardia, hypotension, cardiac arrhythmias, and heart block when used as premedication for attenuation of the laryngoscopy and intubation response, limiting its routine use. Thus, it is important to study other routes of administration of dexmedetomidine. Objectives To compare the hemodynamic response and sedation score between intravenous and nebulized dexmedetomidine as premedication for the attenuation of the laryngoscopy and intubation response. Materials and methods In this study, 60 patients fulfilling inclusion criteria undergoing surgeries under general anesthesia (ASA Grade I and II) were randomly allocated into two groups of 30 patients each. Group IV received intravenous 1 mcg/kg dexmedetomidine in 100 mL normal saline, and Group IN received nebulization with 1 mcg/kg dexmedetomidine diluted to a total volume of 5 cc of normal saline, 30 minutes prior to the induction of general anesthesia. Sedation scores were calculated using the Ramsay sedation score at 20 minutes after the administration of the drug; patients were induced by the standard protocol, and laryngoscopy was performed. Vitals were recorded before the administration of the drug and after intubation at stipulated time intervals. Results The median heart rate becomes significantly lower at 15 minutes (70 vs. 76.5) and 20 minutes (66 vs. 76) after induction among Group IV as compared to Group IN. The median systolic blood pressure was significantly lower at 20 minutes in Group IV (110 mmHg) than in Group IN (119 mmHg). The median diastolic blood pressure was significantly lower at 10 minutes (76 vs. 79), 15 minutes (70 vs. 77), and 20 minutes (69 vs. 78.5) in Group IV than in Group IN. The median of mean arterial pressure was significantly lower at 15 minutes (84.8 vs. 91.5) and 20 minutes (83 vs. 92) in Group IV than in Group IN. A comparison of vitals after induction shows that the median heart rate, systolic blood pressure, diastolic blood pressure, and mean arterial pressure were significantly lower statistically among Group IV as compared to Group IN at 0, 1, 3, 5, 10, 15, and 30 minutes after induction (except for systolic blood pressure at 3 minutes). The median sedation score was lower in Group IN (0) than in Group IV (1); this difference is statistically significant. Conclusion The obtundation of hemodynamic responses following laryngoscopy and maintaining hemodynamics intraoperatively is statistically better with nebulized dexmedetomidine compared to intravenous dexmedetomidine.
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Affiliation(s)
- Akshita Singla
- Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Jaipur, IND
| | - Rajkumar K Saraswat
- Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Jaipur, IND
| | - Avnish Bharadwaj
- Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Jaipur, IND
| | - Sapna Singh
- Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Jaipur, IND
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18
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Honarmand A, Ebrahim Babaei M, Jafari M, Safavi MR. Comparative Evaluation of Direct Laryngoscopy Versus GlideScope for the Purpose of Laryngoscopy Management and Intubation in Candidates of Cesarean Delivery with General Anesthesia. Adv Biomed Res 2024; 13:13. [PMID: 38525393 PMCID: PMC10958721 DOI: 10.4103/abr.abr_308_21] [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: 10/05/2021] [Revised: 11/16/2021] [Accepted: 11/20/2021] [Indexed: 03/26/2024] Open
Abstract
Background The present study aimed at comparing the hemodynamic responses to laryngoscopy and initiation of intubation with either direct or video-assisted laryngoscopy. Materials and Methods This double-blind clinical trial was performed on 90 pregnant women candidates for cesarean section under general anesthesia. The participants were divided into two groups. In the first group, intubation was performed using direct Macintosh laryngoscope (MCL group). The second group underwent intubation using the GlideScope video laryngoscope (GSL group). Then, systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), the percentage of the saturation of peripheral oxygen (SpO2), the time-to-intubation (TTI), and the number of intubation attempts were recorded. Results SBP, DBP, and MAP in the MCL group were significantly higher than GSL group 1, 3, and 5 min after laryngoscopy (P < 0.05). HR in the MCL group with the mean of 118.44 ± 15.53 bpm was significantly higher than that the GSL group with the mean of 110.11 ± 16.68 bpm only 3 min after laryngoscopy (P = 0.016). The TTI in the MCL group was significantly longer than that of the GSL group (12.80 ± 1.86 vs. 10.15 ± 2.61; P = 0.001). The frequency of the first intubation attempt in the GSL group with 91.1% was significantly higher than that the MCL group with 84.4% (P = 0.003). Conclusion It seems that the GSL technique is a better choice to conduct laryngoscopy with more success in intubation and a higher stability of the patients' hemodynamic status.
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Affiliation(s)
- Azim Honarmand
- Department of Anesthesiology, Anesthesiology and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahtab Ebrahim Babaei
- Department of Obstetrics and Gynecology, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad Jafari
- Department of Anesthesiology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Reza Safavi
- Department of Anesthesiology, Anesthesiology and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Wu X, Sánchez CA, Lloyd JE, Borgard H, Fels S, Paydarfar JA, Halter RJ. Estimating tongue deformation during laryngoscopy using a hybrid FEM-multibody model and intraoperative tracking - a cadaver study. Comput Methods Biomech Biomed Engin 2024:1-11. [PMID: 38193213 DOI: 10.1080/10255842.2023.2301672] [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: 09/25/2023] [Accepted: 12/31/2023] [Indexed: 01/10/2024]
Abstract
Throat tumour margin control remains difficult due to the tight, enclosed space of the oral and throat regions and the tissue deformation resulting from placement of retractors and scopes during surgery. Intraoperative imaging can help with better localization but is hindered by non-image-compatible surgical instruments, cost, and unavailability. We propose a novel method of using instrument tracking and FEM-multibody modelling to simulate soft tissue deformation in the intraoperative setting, without requiring intraoperative imaging, to improve surgical guidance accuracy. We report our first empirical study, based on four trials of a cadaveric head specimen with full neck anatomy, yields a mean TLE of 10.8 ± 5.5 mm, demonstrating methodological feasibility.
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Affiliation(s)
- Xiaotian Wu
- Gordon Center for Medical Imaging, MA General Hospital and Harvard Medical School, Boston, MA, USA
- Thayer School of Engineering, Dartmouth College, Hanover, NH, USA
| | - C Antonio Sánchez
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada
| | - John E Lloyd
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada
| | - Heather Borgard
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada
| | - Sidney Fels
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada
| | - Joseph A Paydarfar
- Section of Otolaryngology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
- Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Ryan J Halter
- Thayer School of Engineering, Dartmouth College, Hanover, NH, USA
- Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
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20
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Sampieri C, Azam MA, Ioppi A, Baldini C, Moccia S, Kim D, Tirrito A, Paderno A, Piazza C, Mattos LS, Peretti G. Real-Time Laryngeal Cancer Boundaries Delineation on White Light and Narrow-Band Imaging Laryngoscopy with Deep Learning. Laryngoscope 2024. [PMID: 38174772 DOI: 10.1002/lary.31255] [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: 06/16/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVE To investigate the potential of deep learning for automatically delineating (segmenting) laryngeal cancer superficial extent on endoscopic images and videos. METHODS A retrospective study was conducted extracting and annotating white light (WL) and Narrow-Band Imaging (NBI) frames to train a segmentation model (SegMENT-Plus). Two external datasets were used for validation. The model's performances were compared with those of two otolaryngology residents. In addition, the model was tested on real intraoperative laryngoscopy videos. RESULTS A total of 3933 images of laryngeal cancer from 557 patients were used. The model achieved the following median values (interquartile range): Dice Similarity Coefficient (DSC) = 0.83 (0.70-0.90), Intersection over Union (IoU) = 0.83 (0.73-0.90), Accuracy = 0.97 (0.95-0.99), Inference Speed = 25.6 (25.1-26.1) frames per second. The external testing cohorts comprised 156 and 200 images. SegMENT-Plus performed similarly on all three datasets for DSC (p = 0.05) and IoU (p = 0.07). No significant differences were noticed when separately analyzing WL and NBI test images on DSC (p = 0.06) and IoU (p = 0.78) and when analyzing the model versus the two residents on DSC (p = 0.06) and IoU (Senior vs. SegMENT-Plus, p = 0.13; Junior vs. SegMENT-Plus, p = 1.00). The model was then tested on real intraoperative laryngoscopy videos. CONCLUSION SegMENT-Plus can accurately delineate laryngeal cancer boundaries in endoscopic images, with performances equal to those of two otolaryngology residents. The results on the two external datasets demonstrate excellent generalization capabilities. The computation speed of the model allowed its application on videolaryngoscopies simulating real-time use. Clinical trials are needed to evaluate the role of this technology in surgical practice and resection margin improvement. LEVEL OF EVIDENCE III Laryngoscope, 2024.
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Affiliation(s)
- Claudio Sampieri
- Department of Experimental Medicine (DIMES), University of Genova, Genoa, Italy
- Functional Unit of Head and Neck Tumors, Hospital Clínic, Barcelona, Spain
- Otorhinolaryngology Department, Hospital Clínic, Barcelona, Spain
| | - Muhammad Adeel Azam
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), University of Genova, Genoa, Italy
| | - Alessandro Ioppi
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genova, Genoa, Italy
- Department of Otorhinolaryngology-Head and Neck Surgery, "S. Chiara" Hospital, Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy
| | - Chiara Baldini
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), University of Genova, Genoa, Italy
| | - Sara Moccia
- The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Dahee Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Alessandro Tirrito
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genova, Genoa, Italy
| | - Alberto Paderno
- Unit of Otorhinolaryngology - Head and Neck Surgery, ASST Spedali Civili of Brescia, Brescia, Italy
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy
| | - Cesare Piazza
- Unit of Otorhinolaryngology - Head and Neck Surgery, ASST Spedali Civili of Brescia, Brescia, Italy
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy
| | - Leonardo S Mattos
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Giorgio Peretti
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genova, Genoa, Italy
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Maseri A, Ista P, Leclercq G, Delhez Q, Dincq AS. Innovative Approach to Difficult Airway Management: Utilizing the Cook® Airway Exchange Catheter for Double-Lumen Tube Intubation. Am J Case Rep 2024; 25:e942288. [PMID: 38173224 PMCID: PMC10775132 DOI: 10.12659/ajcr.942288] [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: 08/24/2023] [Revised: 12/01/2023] [Accepted: 10/26/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND The Cook® Airway ExchangeCatheter (Cook® AEC, Cook Group Incorporated, Bloomington, Indiana, USA) is an 83-cm-long graduated hollow tube with an external diameter of 11, 14, or 19 French, commonly used for tracheal tube replacement. Although this application is reliable in the exchange of single-lumen tubes, the failure rate markedly rises during the exchange from a single-lumen to a double-lumen endotracheal tube. It is also often used as a bridge to extubation in patients with difficult airways and for oxygenation support applications. CASE REPORT We describe the case of a 58-year-old patient with unexpected difficult airway management. He was scheduled to undergo a minimally invasive hybrid esophagectomy (laparoscopic abdominal stage followed by an open right thoracotomy, requiring one-lung ventilation with a double-lumen tube). After the laparoscopic abdominal stage, performed with a single-lumen endotracheal tube, we exchanged it for a double-lumen endotracheal tube. After several unsuccessful exchanges with a Cook® Airway Exchange Catheter due to the flexibility of the exchange catheter, we decided to use the exchange catheter as a method to maintain adequate ventilation while using it as a target to facilitate tracheal intubation alongside it, using a videolaryngoscope. CONCLUSIONS This case report discusses an unusual use of the Cook® Airway ExchangeCatheter during videolaryngoscopic double-lumen endotracheal tube (DLT) intubation. It reviews previously documented uses in the literature, while highlighting the possibility of failure during tube exchange. It also highlights its value as a support for oxygenation and ventilation during difficult intubation attempts.
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DeChance D, Frank E, Dehom S, Watson W, Simmons E, Krishna PD, Crawley B. Clinical and Anatomical Variation During Assessment of Maximum Glottic Angle. Laryngoscope 2024. [PMID: 38174824 DOI: 10.1002/lary.31245] [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: 06/28/2023] [Revised: 11/09/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024]
Abstract
INTRODUCTION Quantitative measurement and analysis of glottic abduction is used to assess laryngeal function and success of interventions; however, the consistency of measurement over time has not been established. This study assesses the consistency of glottic abduction measurements across visits in healthy patients and anatomic factors impacting these measurements. METHODS Review of patients with two sequential flexible stroboscopic exams over seven months from 2019-2022. Images of maximal glottic abduction were captured and uploaded into and measured with ImageJ. Cadaver heads were used to assess the impact of visualization angles on glottic measurements with a monofilament inserted into the supraglottis of each cadaver as a point of reference. Comparisons were done with a paired T-test, T-test, or Mann-Whitney U test as appropriate. RESULTS Fifty-nine patients and twenty-six cadaveric exams were included. Absolute change in maximum glottic abduction angle (MGAA) was 6.90° (95% CI [5.36°, 8.42°]; p < 0.05). There were no significant differences in change in MGAA by gender or age. Twenty percent of patients had a change of at least 25% in their MGAA between visits. Absolute differences in glottic angle between nasal side for cadaveric measurements was 4.77 ± 4.59° (p < 0.005)-2.22° less than the change in MGAA seen over time (p = 0.185). CONCLUSION Maximal glottic abduction angles varied significantly between visits. Factors considered to be contributing to the differences include different viewing windows between examinations due to the position and angulation of the laryngoscope and changes in patient positioning, intra- and inter-rater variations in measurement, and patient effort. LEVEL OF EVIDENCE N/a Laryngoscope, 2024.
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Affiliation(s)
- Daniel DeChance
- Loma Linda University School of Medicine, Loma Linda, California, U.S.A
| | - Ethan Frank
- Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California, U.S.A
| | - Salem Dehom
- School of Nursing, Loma Linda University Medical Center, Loma Linda, California, U.S.A
| | - WayAnne Watson
- Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California, U.S.A
| | - Ethan Simmons
- Loma Linda University School of Medicine, Loma Linda, California, U.S.A
| | - Priya D Krishna
- Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California, U.S.A
| | - Brianna Crawley
- Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California, U.S.A
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Barlow J, Sragi Z, Rivera-Rivera G, Al-Awady A, Daşdöğen Ü, Courey MS, Kirke DN. The Use of Deep Learning Software in the Detection of Voice Disorders: A Systematic Review. Otolaryngol Head Neck Surg 2024. [PMID: 38168017 DOI: 10.1002/ohn.636] [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: 07/07/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVE To summarize the use of deep learning in the detection of voice disorders using acoustic and laryngoscopic input, compare specific neural networks in terms of accuracy, and assess their effectiveness compared to expert clinical visual examination. DATA SOURCES Embase, MEDLINE, and Cochrane Central. REVIEW METHODS Databases were screened through November 11, 2023 for relevant studies. The inclusion criteria required studies to utilize a specified deep learning method, use laryngoscopy or acoustic input, and measure accuracy of binary classification between healthy patients and those with voice disorders. RESULTS Thirty-four studies met the inclusion criteria, with 18 focusing on voice analysis, 15 on imaging analysis, and 1 both. Across the 18 acoustic studies, 21 programs were used for identification of organic and functional voice disorders. These technologies included 10 convolutional neural networks (CNNs), 6 multilayer perceptrons (MLPs), and 5 other neural networks. The binary classification systems yielded a mean accuracy of 89.0% overall, including 93.7% for MLP programs and 84.5% for CNNs. Among the 15 imaging analysis studies, a total of 23 programs were utilized, resulting in a mean accuracy of 91.3%. Specifically, the twenty CNNs achieved a mean accuracy of 92.6% compared to 83.0% for the 3 MLPs. CONCLUSION Deep learning models were shown to be highly accurate in the detection of voice pathology, with CNNs most effective for assessing laryngoscopy images and MLPs most effective for assessing acoustic input. While deep learning methods outperformed expert clinical exam in limited comparisons, further studies integrating external validation are necessary.
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Affiliation(s)
- Joshua Barlow
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Zara Sragi
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Gabriel Rivera-Rivera
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Abdurrahman Al-Awady
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Ümit Daşdöğen
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Mark S Courey
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Diana N Kirke
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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Ntoumenopoulos G, Andersen T, Hardingham NM. Upper airway assessment and its implications for interventions by respiratory physiotherapists. Physiother Theory Pract 2024; 40:184-189. [PMID: 35904123 DOI: 10.1080/09593985.2022.2106916] [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: 12/29/2021] [Accepted: 07/16/2022] [Indexed: 10/16/2022]
Abstract
BACKGROUND When noninvasive interventions such as chest physiotherapy fail, then more aggressive interventions for airway secretion clearance with nasotracheal airway suctioning may be required. Clinicians however have to insert the nasotracheal suction catheter "blindly" and the success of being able to trigger a cough and pass through the vocal folds with a suction catheter is low. CASE DESCRIPTION The patient, a 48-year-old male underwent a heart and lung transplant. Following extubation, the patient developed secretion retention with a weak ineffective cough and swallow and required physiotherapy interventions with frequent "blind" passes of nasotracheal suctioning. OUTCOMES The patient required nasotracheal suction with frequent multiple failed attempts before successful passage of the suction catheter to trigger a cough reflex and clear secretions. A combined physiotherapist and speech and language therapist intervention during fiberoptic endoscopic evaluation of swallow (FEES) was recorded to both evaluate swallow and passage of the suction catheter. The video illustrated the successful passage of a suctioning catheter through the vocal folds leading to an effective cough and airway clearance. DISCUSSION We present a case report demonstrating that it is feasible to visualize the upper airways during nasotracheal suctioning as an objective means to guide the more accurate successful insertion of the suction catheter past the vocal folds. Rather than "blind" placement of nasotracheal suction catheters visualization using transnasal laryngoscopy should be useful to increase chances of passing through the vocal folds.
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Affiliation(s)
| | - Tiina Andersen
- Norwegian Centre of Excellence for Home Mechanical Ventilation, Thoracic Department, Haukeland University Hospital, Bergen, Norway
| | - Nicola M Hardingham
- Speech Pathology Department, St Vincent's Hospital, Sydney, Australia
- School of Health and Rehabilitation Sciences, University of Queensland, St Lucia, Australia
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Ference EH, Kim W, Oghalai JS, Walker CB, Badash I, Gallagher T, Ma HJ, Applegate BE. COVID-19 in the Clinic: Trial of an Aerosol Containment Mask for Endoscopic Clinic Procedures. Otolaryngol Head Neck Surg 2024; 170:265-271. [PMID: 37622584 DOI: 10.1002/ohn.467] [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: 02/09/2023] [Revised: 07/02/2023] [Accepted: 07/14/2023] [Indexed: 08/26/2023]
Abstract
OBJECTIVE Create an aerosol containment mask (ACM) for common otolaryngologic endoscopic procedures which also provides nanoparticle-level protection to patients. STUDY DESIGN Prospective feasibility study. SETTING In-person testing with a novel ACM. METHODS The mask was designed in Solidworks and 3-dimensional printed. Measurements were made on 100 consecutive clinic patients who underwent medically necessarily endoscopy, 50 rigid nasal and 50 flexible, by 9 surgeons. RESULTS Of the 50 patients who underwent rigid nasal endoscopy with the ACM, 0 of 25 patients with the suction off and 0 of 25 patients with the suction on had evidence of leakage of 0.3 μm particles. Of the 50 patients who underwent flexible endoscopy with the ACM, 0 of 25 patients with the suction off and 0 of 25 patients with the suction on had evidence of leakage of 0.3 μm particles. In terms of comfort, 73% of patients found the ACM somewhat or very comfortable without suction, compared to 86% with the suction on. Surgeons were able to visualize all necessary anatomic areas in 98% of procedures. In 97% of procedures, the masks were able to be placed easily. CONCLUSION ACM can accommodate rigid nasal and flexible endoscopes and may prevent leakage of patient-generated aerosols, thus avoiding contamination of the room and protecting health care workers from airborne contagions. LEVEL OF EVIDENCE The level of evidence is 2.
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Affiliation(s)
- Elisabeth H Ference
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Wihan Kim
- Alfred Mann Institute for Biomedical Engineering, Los Angeles, California, USA
| | - John S Oghalai
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Clayton B Walker
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
- Alfred Mann Institute for Biomedical Engineering, Los Angeles, California, USA
| | - Ido Badash
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Tyler Gallagher
- Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Harrison J Ma
- Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Brian E Applegate
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California, USA
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Petzoldt M, Grün C, Wünsch VA, Bauer M, Hardel TT, Grensemann J. In reply: Comparing devices for managing the difficult airway. Can J Anaesth 2024; 71:156-157. [PMID: 37919626 PMCID: PMC10858088 DOI: 10.1007/s12630-023-02627-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 09/26/2023] [Accepted: 09/26/2023] [Indexed: 11/04/2023] Open
Affiliation(s)
- Martin Petzoldt
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Catharina Grün
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Viktor A Wünsch
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marcus Bauer
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tim T Hardel
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jörn Grensemann
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Kaur K, Raja R, Kumar P, Singh R, Vashishth S, Singh HD, Bhardwaj M, Singhal SK. A comparative study to evaluate the cervical spine movements during laryngoscopy using Macintosh and Airtraq laryngoscopes. J Anaesthesiol Clin Pharmacol 2024; 40:101-107. [PMID: 38666159 PMCID: PMC11042109 DOI: 10.4103/joacp.joacp_89_22] [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: 03/08/2022] [Revised: 05/29/2022] [Accepted: 07/03/2022] [Indexed: 04/28/2024] Open
Abstract
Background and Aim Intubation with Macintosh requires flexing the lower cervical spine and extending the atlanto-occipital joint to create a "line of sight." Primary aim of study was to compare the extent of cervical spine movement during laryngoscopy using conventional Macintosh laryngoscope and Airtraq. Material and Methods A total of 25 patients of either sex between the age group of 18 and 60 years, having American Society of Anesthesiologists (ASA) physical status of Grade-I and Grade-II, scheduled for elective surgery under image control requiring general anesthesia and intubation were enrolled. A baseline image of the lateral cervical spine including the first four cervical vertebrae was taken by an image intensifier. After administration of general anesthesia, laryngoscopy was first performed using a Macintosh laryngoscope and a second X-ray image of the lateral cervical spine was taken. The second laryngoscopy using a Airtraq laryngoscope was done and the third image of the lateral cervical spine was taken. Angles between occiput and C1; C1 and C2; C2 and C3; C3 and C4; and occiput and C4 were calculated. Atlanto-occipital distance (AOD) was calculated as the distance between occiput and C1. Results Macintosh showed greater cervical movement as compared with Airtraq but a significant difference in the movement was observed at C2-C3 and C0-C4. Baseline mean AOD was 2.21 ± 1.25 mm, after Macintosh and Airtraq laryngoscopy was found to be 1.13 ± 0.60 and 1.6 ± 0.78 mm, respectively, and was found to be significant (P < 0.05). Conclusion We conclude that Airtraq allows intubation with less movement of the upper cervical spine makes Airtraq preferred equipment for intubation in patients with a potential cervical spine injury.
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Affiliation(s)
- Kiranpreet Kaur
- Department of Anaesthesiology and Critical Care, Rohtak, Haryana, India
| | - Rameez Raja
- Department of Anaesthesiology and Critical Care, Rohtak, Haryana, India
| | - Prashant Kumar
- Department of Anaesthesiology and Critical Care, Rohtak, Haryana, India
| | - Roop Singh
- Department of Orthopaedics, Pt. B.D. Sharma PGIMS, Rohtak, Haryana, India
| | - Sumedha Vashishth
- Department of Anaesthesiology and Critical Care, Rohtak, Haryana, India
| | - Harshil D. Singh
- Department of Computer Science, IIIT UNA, Himachal Pradesh, India
| | - Mamta Bhardwaj
- Department of Anaesthesiology and Critical Care, Rohtak, Haryana, India
| | - Suresh K. Singhal
- Department of Anaesthesiology and Critical Care, Rohtak, Haryana, India
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Pandian V, Cherukuri SPS, Koneru M, Karne V, Tajrishi FZ, Aloori S, Kota P, Dinglas V, Colantuoni E, Akst L, Hillel AT, Needham DM, Brodsky MB. Post-extubation Assessment of Laryngeal Symptoms and Severity (PALSS) in the Intensive Care Unit: Protocol of a Prospective Cohort Study. ORL Head Neck Nurs 2024; 42:8-21. [PMID: 38264200 PMCID: PMC10805360] [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] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Aims The Post-extubation Assessment of Laryngeal Symptoms and Severity (PALSS) study systematically evaluates patient symptoms related to endotracheal intubation with mechanical ventilation, assesses laryngeal injury and voice function after extubation, and develops a screening tool to identify patients with clinically important, post-extubation laryngeal injury. Design Single-center, prospective observational cohort study conducted in 6 intensive care units (ICU). Methods Patients ≥18 years old who are orally intubated and mechanically ventilated in an ICU and meet eligibility criteria will undergo flexible laryngoscopy, with a sample size goal of 300 completed laryngoscopies. Primary outcome measures include signs and symptoms of laryngeal injury, including voice symptoms and alterations in swallowing, measured using the Laryngeal Hypersensitivity Questionnaire-Acute and Voice Symptom Scale questionnaires respectively. Data will be collected within 72 hours post-extubation and at 7-day follow-up or hospital discharge (whichever occurs first). Data will be analyzed using descriptive statistics, regression models, and predictive modeling using machine learning. Discussion The findings of this study will describe the clinical signs and symptoms of laryngeal injury post-extubation. Conclusion The PALSS study will provide insights for future studies that explore laryngeal injuries using flexible laryngoscopy after endotracheal intubation. Implications for patient care Identifying signs and symptoms of laryngeal injury after endotracheal intubation will facilitate the development of a screening tool that will assist in early identification of post-extubation laryngeal injury, and aid in decreasing short- and long-term complications of endotracheal intubation. Reporting Method SPIRIT. Patient or Public Contribution Patients were study participants; and family members provided informed consent when the patient lacked decision-making capacity.
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Affiliation(s)
- Vinciya Pandian
- School of Nursing, Johns Hopkins University
- Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University
| | | | | | - Vidyadhari Karne
- Department of Pathology and Laboratory Medicine, University of Southern California
| | | | - Swetha Aloori
- Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University
| | - Pooja Kota
- Neurocardiology research program of excellence, University of California, Los Angeles
| | - Victor Dinglas
- Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University
| | | | - Lee Akst
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University
| | - Alexander T Hillel
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University
| | - Dale M Needham
- School of Nursing, Johns Hopkins University
- Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University
| | - Martin B Brodsky
- Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University
- Speech-Language Pathology, Head and Neck Institute, Cleveland Clinic
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University
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Wong P, Sleigh JW. Airway management of lingual tonsillar hypertrophy: A narrative review. Anaesth Intensive Care 2024; 52:16-27. [PMID: 38006611 DOI: 10.1177/0310057x231196910] [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] [Indexed: 11/27/2023]
Abstract
Lingual tonsillar hypertrophy is rarely identified on routine airway assessment but may cause difficulties in airway management. We conducted a narrative review of case reports of lingual tonsillar hypertrophy to examine associated patient factors, success rates of airway management techniques and complications. We searched the literature for anaesthetic management of cases with lingual tonsillar hypertrophy. We found 89 patients in various case reports, from which we derived 92 cases to analyse. 64% of cases were assessed as having a normal airway. Difficult and impossible face mask ventilation occurred in 29.6% and 1.4% of cases, respectively. Difficult intubation and failed intubation occurred in 89.1% and 21.7% of cases, respectively. Multiple attempts (up to six) at intubation were performed, with no successful intubation after the third attempt with direct laryngoscopy. Some 16.5% of patients were woken up and 4.3% required emergency front of neck access. Complications included oesophageal intubation (10.9%), bleeding (9.8%) and severe hypoxia (3.2%). Our findings show that severe cases of lingual hypertrophy may cause an unanticipated difficult airway and serious complications, including hypoxic brain damage and death. A robust airway strategy is required which includes limiting the number of attempts at laryngoscopy, and early priming and performance of emergency front of neck access if required. In patients with known severe lingual tonsillar hypertrophy, awake intubation should be considered.
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Affiliation(s)
- Patrick Wong
- Department of Anaesthesia and Pain Medicine, Te Whatu Ora Health New Zealand Waikato, Hamilton, New Zealand
| | - Jamie W Sleigh
- Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
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Vidhya S, Swain BP, Dash A, Swain A, Sahu S. Ultrasound-Guided Airway Evaluation: Is It a Game Changer for Predicting Difficult Endotracheal Intubation? Cureus 2024; 16:e52557. [PMID: 38371009 PMCID: PMC10874585 DOI: 10.7759/cureus.52557] [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] [Accepted: 01/18/2024] [Indexed: 02/20/2024] Open
Abstract
INTRODUCTION Airway ultrasound has recently promised to be a valuable addition to preoperative airway assessment tools. This study was undertaken to determine the efficacy of ultrasound-guided measurement of soft tissue thickness (STT) at various levels of the anterior neck in predicting difficult airways in an eastern Indian population. OBJECTIVE The primary objective was to find out the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of anterior neck soft tissue thickness at the level of the hyoid (STT-Hyoid) and vocal cords (STT-VC), distance from the skin to the epiglottis midway (DSEM), and the ratio of the depth of the pre-epiglottic space (Pre-E) to the distance from the epiglottis to the mid-point of the vocal cords (E-VC). The secondary objective was to develop a scoring system using these parameters. MATERIALS AND METHODS One hundred eighty-eight patients aged 18-65 years who received general anesthesia and endotracheal intubation for surgery were included in the study. Anterior neck soft tissue thickness measurements were done preoperatively using ultrasound. The actual difficulty of the airway was graded by the anesthesiologist while performing endotracheal intubation using the intubation difficulty scale (IDS). RESULTS The incidence of a difficult airway (IDS > 5) was 9.04%. The STT-Hyoid and STT-VC had a moderate correlation with IDS. The DSEM and Pre-E/E-VC ratios had a weak correlation with IDS. For difficult airway prediction, the cutoff points of STT-Hyoid and STT-VC were 7.95 mm and 24.25 mm, respectively. The combined cutoff measurements of STT-Hyoid and STT-VC (29.95 mm) were better predictors of difficult airway. CONCLUSION Preoperative airway ultrasound examination measuring the soft tissue thickness at the hyoid and vocal cord levels is an effective modality in predicting a difficult airway. However, further studies are needed to validate this finding in populations of varied ethnicity and demographic distribution.
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Affiliation(s)
- Sri Vidhya
- Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
| | - Bhanu P Swain
- Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Anaesthesiology, Manipal Tata Medical College, Manipal Academy of Higher Education, Manipal, IND
| | - Anbesh Dash
- Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Anaesthesiology, Vikash Multi Specialty Hospital, Bargarh, IND
| | - Amlan Swain
- Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Anaesthesiology, Manipal Tata Medical College, Manipal Academy of Higher Education, Manipal, IND
| | - Seelora Sahu
- Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Anaesthesiology, Manipal Tata Medical College, Manipal Academy of Higher Education, Manipal, IND
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Schauer SG, Long B, Fisher AD, Stednick PJ, Bebarta VS, Ginde AA, April MD. Time for the Department of Defense to Field Video Laryngoscopy Across the Battlespace. J Spec Oper Med 2023; 23:110-111. [PMID: 38029417 DOI: 10.55460/lz5v-qdh4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/01/2023] [Indexed: 12/01/2023]
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Liu C, Zhang T, Cao L, Lin W. Comparison of esketamine versus dexmedetomidine for attenuation of cardiovascular stress response to double-lumen tracheal tube intubation: a randomized controlled trial. Front Cardiovasc Med 2023; 10:1289841. [PMID: 38188254 PMCID: PMC10768184 DOI: 10.3389/fcvm.2023.1289841] [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: 09/06/2023] [Accepted: 11/29/2023] [Indexed: 01/09/2024] Open
Abstract
Introduction The insertion of a double-lumen tracheal tube may cause a transient but more intense sympathetic response. We examined the effects of esketamine vs. dexmedetomidine as an adjuvant to anesthesia induction to blunt double lumen tracheal (DLT) intubation induced cardiovascular stress response. Methods In a randomized, double-blind trial, 78 adult patients scheduled for elective thoracotomy under general anesthesia requiring DLT intubation were enrolled. The patients were randomly divided into three groups: each group received one of the following drugs prior to induction of anesthesia: dexmedetomidine 0.8 µg/kg (Group A), esketamine 0.5 mg/kg (Group B), or normal saline (group C). The primary outcome was the incidence of a DLT intubation-related cardiovascular stress response, defined as an increase in mean arterial pressure or heart rate of >30% above the baseline values. The secondary outcomes were changes in hemodynamic and cardiac function. Results The incidence of the response to cardiovascular stress was 23.1%, 30.8%, and 65.4% in groups A, B, and C, respectively. There was a significant decrease in intubation response in groups A and B in comparison with group C (P < 0.01); however, there was no significant difference between group A and group B (P > 0.05). Following the drug infusion and the induction of anesthesia, there was a significant decrease in HR and cardiac output in group A compared with group B. In contrast, no significant differences were observed in the left ventricular ejection fraction or in stroke volume between the three groups during induction of anesthesia. Discussion Esketamine 0.5 mg/kg and dexmedetomidine 0.8 µg/kg attenuate cardiovascular stress responses related to DLT intubation. As adjuvants to etomidate induction, they do not impair cardiac function (ChiCTR1900028030).
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Affiliation(s)
- Chunyu Liu
- Department of Anesthesiology, State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Anesthesiology, Chongqing University Cancer Hospital, Chongqing, China
| | - Tianhua Zhang
- Department of Anesthesiology, State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Longhui Cao
- Department of Anesthesiology, State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Wenqian Lin
- Department of Anesthesiology, State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Blood Transfusion, State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
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Kriege M, Demare T, Ruemmler R, Schmidtmann I, Wojciechowski J, Busch A, Ott T. Exchange of a Tracheal Tube and Supraglottic Airway Device: Evaluation of Different Techniques in Three Simulated Airway Scenarios (TUBE Study)-A Prospective, Randomised Controlled Study. J Clin Med 2023; 13:16. [PMID: 38202022 PMCID: PMC10779719 DOI: 10.3390/jcm13010016] [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: 10/17/2023] [Revised: 12/05/2023] [Accepted: 12/12/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND The swapping of a supraglottic airway device or a tracheal tube in anaesthetised adult patients is a challenging procedure because potential complications through hypoxemia and loss of airway may occur, with life-threatening implications. This study aims to evaluate which airway technique offers the highest success rate concerning a secure airway in established supraglottic airway and tracheal tube airway exchange scenarios. METHODS After ethical approval, anaesthesiologists were randomised 1:1 into simulated scenarios: an LTS group (malpositioned laryngeal tube) and a Cuff group (relevant cuff leakage of a placed tracheal tube). After that, both groups completed a common scenario consisting of a partially obstructed tracheal tube lumen in a fixed prone position with a Mayfield clamp. The primary endpoint was a successful tracheal airway exchange within ten minutes after the start of the scenario and before severe hypoxemia (SpO2 < 80%) arose. Secondary endpoints were the evaluation of factors influencing success after 10 min. RESULTS In total, 60 anaesthesiologists (LTS group n = 30; Cuff group n = 30) with a median experience of 7 years (IQR 4-11) were observed. Within 10 min, a malpositioned laryngeal tube was successfully exchanged by 27/30 (90%) participants, compared to the exchange of a tracheal tube with a relevant cuff leakage by 29/30 (97%; p > 0.05). An airway exchange in an obstructed tube scenario occurred in 22/59 (37%). Loss of airway maintenance showed an obvious association with failure in the common scenario (p = 0.02). CONCLUSION The results of this simulation-based study reflect that the exchange of an existing but insufficient airway device in clinical practice is a high-risk procedure. Especially in a fixed prone position, the deliberate evaluation of the existing airway patency and well-conceived airway management in the case of the accidental loss of the airway or obstructed airway access are crucial.
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Affiliation(s)
- Marc Kriege
- Department of Anaesthesiology, University Medical Centre, Johannes Gutenberg—University Mainz, 55131 Mainz, Germany
| | - Tim Demare
- Department of Anaesthesiology, University Medical Centre, Johannes Gutenberg—University Mainz, 55131 Mainz, Germany
| | - Robert Ruemmler
- Department of Anaesthesiology, University Medical Centre, Johannes Gutenberg—University Mainz, 55131 Mainz, Germany
| | - Irene Schmidtmann
- Institute for Medical Biostatistics, Epidemiology and Informatics, University Medical Centre, Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Janosh Wojciechowski
- Department of Anaesthesiology and Intensive Care, Asklepios Paulinen Hospital Wiesbaden, 65197 Wiesbaden, Germany
| | - Anneke Busch
- Department of Anaesthesiology and Intensive Care, Asklepios Paulinen Hospital Wiesbaden, 65197 Wiesbaden, Germany
| | - Thomas Ott
- Department of Anaesthesiology, University Medical Centre, Johannes Gutenberg—University Mainz, 55131 Mainz, Germany
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Highland J, Torrecillas V, Redding T, Bixby B, Iravani A, Haller T, Firpo M, Nouraei R, Smith M. Optimization of Subglottic View During Flexible Laryngoscopy With Patient Positioning. Otolaryngol Head Neck Surg 2023; 169:1556-1563. [PMID: 37522249 DOI: 10.1002/ohn.419] [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: 03/13/2023] [Revised: 05/25/2023] [Accepted: 06/03/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVE Determine the ideal head position to optimize visualization of the subglottis using flexible laryngoscopy. STUDY DESIGN Prospective cohort study. SETTING Outpatient multidisciplinary airway clinic at a tertiary care center. METHODS Patients presenting to a multidisciplinary airway clinic undergoing nasoendoscopic airway examination were enrolled. Three head positions were utilized to examine the subglottis during laryngoscopy: "sniffing," chin tuck, and stooping positions. In-office reviewers and blinded clinician participants evaluated views of the airway based on Cormack-Lehane (CL) scale, airway grade (AG), and visual analog scale (VAS). Demographic data were obtained. Statistical analysis compared head positions and demographic data using Student's t test, analysis of variance, and Tukey's post hoc analysis. RESULTS One hundred patients participated. No statistical differences existed among in-clinic or blinded reviewers for the CL score in any head position (p = .35, .5, respectively). For both AG and VAS, flexed and stooping positions were rated higher than the sniffing positions by both in-clinic and blinded reviewers (p < .01 for all analyses), but there was no statistical difference between these two positions (p = .28, .18, respectively). There was an inverse correlation between age and scores for AG and VAS in the flexed position for both sets of reviewers (p = .02, <.01 respectively), and a higher body mass index was significantly associated with the need to perform tracheoscopy for full airway evaluation (p < .01). CONCLUSION Both flexion and stoop postures can be implemented by an experienced endoscopist in awake, transnasal flexible laryngoscopy to enhance visualization of the subglottic airway.
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Affiliation(s)
- Julie Highland
- Department of Surgery, Department of Otolaryngology, University of Utah, Salt Lake City, Utah, USA
| | - Vanessa Torrecillas
- Department of Surgery, Department of Otolaryngology, University of Utah, Salt Lake City, Utah, USA
| | - Taylor Redding
- University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Billie Bixby
- Department of Internal Medicine, Division of Pulmonary and Critical Care, University of Arizona, Tucson, Arizona, USA
| | - Aidin Iravani
- Department of Internal Medicine, Division of Pulmonology, University of Utah, Salt Lake City, Utah, USA
| | - Travis Haller
- University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Matthew Firpo
- University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Reza Nouraei
- Department of Otolaryngology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Marshall Smith
- Department of Surgery, Department of Otolaryngology, University of Utah, Salt Lake City, Utah, USA
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Montalbaron MB, Achlatis E, Johnson AM, Ma Y, Young VN, Rosen CA, Amin MR, Kwak PE. Presumptive Diagnosis in Tele-Health Laryngology: A Multi-Center Observational Study. Ann Otol Rhinol Laryngol 2023; 132:1511-1519. [PMID: 37070580 DOI: 10.1177/00034894231165811] [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] [Indexed: 04/19/2023]
Abstract
OBJECTIVES Early in the COVID-19 pandemic, outpatient visits were adapted for the virtual setting, forcing laryngologists to presume certain diagnoses without the aid of laryngoscopy, solely based on history and the limited physical exam available via video visit. This study aims to examine the accuracy of presumptive diagnoses made via telemedicine, compared to subsequent in-person follow up, where endoscopic examination could confirm or refute suspected diagnoses. METHODS A retrospective chart review was conducted of 38 patients evaluated for voice-related issues at NYU Langone Health and the University of California-San Francisco. Presumptive diagnoses at the initial telemedicine encounter were noted, along with diagnostic cues used for clinical reasoning and recommended treatment plans. These presumptive diagnoses were compared to diagnoses and plans established following laryngoscopy at follow-up in-person visits. RESULTS After laryngoscopy at the first in-person visit, 38% of presumptive diagnoses changed, as did 37% of treatment plans. The accuracy varied among conditions. Muscle tension dysphonia and Reinke's edema were accurately diagnosed without laryngoscopy, but other conditions, including vocal fold paralysis and subglottic stenosis, were not initially suspected, relying on laryngoscopy for diagnosis. CONCLUSIONS While some laryngologic conditions may be reasonably identified without in-person examination, laryngoscopy remains central to definitive diagnosis and treatment. Telemedicine can increase access to care, but it may provide more utility as a screening tool, triaging which patients should present more urgently for in-person laryngoscopy. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- Michael B Montalbaron
- NYU Voice Center, Department of Otolaryngology - Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
| | - Efstratios Achlatis
- NYU Voice Center, Department of Otolaryngology - Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
| | - Aaron M Johnson
- NYU Voice Center, Department of Otolaryngology - Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
| | - Yue Ma
- UCSF Voice and Swallowing Center, Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, CA, USA
| | - VyVy N Young
- UCSF Voice and Swallowing Center, Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Clark A Rosen
- UCSF Voice and Swallowing Center, Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Milan R Amin
- NYU Voice Center, Department of Otolaryngology - Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
| | - Paul E Kwak
- NYU Voice Center, Department of Otolaryngology - Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY, USA
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Bur AM, Zhang T, Chen X, Kavookjian H, Kraft S, Karadaghy O, Farrokhian N, Mussatto C, Penn J, Wang G. Interpretable Computer Vision to Detect and Classify Structural Laryngeal Lesions in Digital Flexible Laryngoscopic Images. Otolaryngol Head Neck Surg 2023; 169:1564-1572. [PMID: 37350279 DOI: 10.1002/ohn.411] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 01/18/2023] [Revised: 06/01/2023] [Accepted: 06/10/2023] [Indexed: 06/24/2023]
Abstract
OBJECTIVE To localize structural laryngeal lesions within digital flexible laryngoscopic images and to classify them as benign or suspicious for malignancy using state-of-the-art computer vision detection models. STUDY DESIGN Cross-sectional diagnostic study SETTING: Tertiary care voice clinic METHODS: Digital stroboscopic videos, demographic and clinical data were collected from patients evaluated for a structural laryngeal lesion. Laryngoscopic images were extracted from videos and manually labeled with bounding boxes encompassing the lesion. Four detection models were employed to simultaneously localize and classify structural laryngeal lesions in laryngoscopic images. Classification accuracy, intersection over union (IoU) and mean average precision (mAP) were evaluated as measures of classification, localization, and overall performance, respectively. RESULTS In total, 8,172 images from 147 patients were included in the laryngeal image dataset. Classification accuracy was 88.5 for individual laryngeal images and increased to 92.0 when all images belonging to the same sequence (video) were considered. Mean average precision across all four detection models was 50.1 using an IoU threshold of 0.5 to determine successful localization. CONCLUSION Results of this study showed that deep neural network-based detection models trained using a labeled dataset of digital laryngeal images have the potential to classify structural laryngeal lesions as benign or suspicious for malignancy and to localize them within an image. This approach provides valuable insight into which part of the image was used by the model to determine a diagnosis, allowing clinicians to independently evaluate models' predictions.
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Affiliation(s)
- Andrés M Bur
- Department of Otolaryngology-Head and Neck Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Tianxiao Zhang
- Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS, USA
| | - Xiangyu Chen
- Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS, USA
| | - Hannah Kavookjian
- Department of Otolaryngology-Head and Neck Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Shannon Kraft
- Department of Otolaryngology-Head and Neck Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Omar Karadaghy
- Department of Otolaryngology-Head and Neck Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Nathan Farrokhian
- Department of Otolaryngology-Head and Neck Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | | | - Joseph Penn
- University of Kansas School of Medicine, Kansas City, KS, USA
| | - Guanghui Wang
- Department of Computer Science, Toronto Metropolitan University, Toronto, ON, Canada
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Rajagopal S, Gardner RN, Swanson E, Kim S, Sondekoppam R, Ueda K, Hanada S. Comparison of Time to Intubation of a Double-Lumen Endobronchial Tube Utilizing C-MAC® Versus GlideScope® Versus Macintosh Blade: A Randomized Crossover Manikin Study. Cureus 2023; 15:e50523. [PMID: 38222170 PMCID: PMC10787594 DOI: 10.7759/cureus.50523] [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] [Accepted: 12/13/2023] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND Macintosh blade direct laryngoscopy is widely used for endotracheal intubation. It may, however, provide an incomplete view of the glottis in patients with challenging airway anatomy. Consequently, various video laryngoscopes have been developed to enhance the visualization of the glottis and facilitate intubation. Yet, the effectiveness of these video laryngoscopes for intubation using a double-lumen endotracheal tube (DLT), which is longer, larger, and more rigid and has a linear configuration as opposed to the naturally semicircular curvature of a single-lumen endotracheal tube, remains uncertain. We hypothesized that video laryngoscopes would be more efficient for DLT intubation compared to the Macintosh blade in an adult manikin. METHODS Ninety-four anesthesia providers, comprising 67 residents, 15 fellows, and 12 attendings, attempted to intubate an adult manikin with normal airway anatomy (Laerdal, Wappingers Falls, NY, USA) using a 37 Fr left-sided DLT. Three different intubation devices were used: the C-MAC® video laryngoscope (Karl Storz GmbH & Co. KG, Tuttlingen, Germany), the GlideScope® video laryngoscope (Verathon Inc., Bothell, WA), and the Macintosh blade direct laryngoscope-were used. Each participant intubated a manikin once with each of the three devices. Participants were randomized via a crossover design with the order of devices determined by using a Latin square design. Time to intubation and the number of failed intubations (esophageal intubation) were compared across the three different devices. RESULTS Mean times to intubation for the C-MAC®, GlideScope®, and Macintosh blades were 18.57 ± 0.77, 36.26 ± 2.69, and 20.76 ± 0.96 seconds, respectively. There was a statistically significant difference (P<0.001) between the GlideScope® and the other two laryngoscopes. The times for C-MAC® and Macintosh blades were not significantly different. There were two instances of first-attempt failed intubation with the Macintosh. CONCLUSION Both the C-MAC® and the Macintosh blades proved more efficient in terms of time to DLT intubation in the manikin with normal airway anatomy, when compared to the GlideScope®. Considering the occurrence of first-attempt failed intubation, the C-MAC® was the most effective device among the three laryngoscopes for timely successful DLT intubation in the adult manikin. Further studies are needed to confirm these results in human subjects.
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Affiliation(s)
| | - Richard N Gardner
- Anesthesia, University of Iowa Hospitals and Clinics, Iowa City, USA
| | | | - Sung Kim
- Anesthesia, University of Iowa Hospitals and Clinics, Iowa City, USA
| | | | - Kenichi Ueda
- Anesthesia, Kameda Medical Center, Kamogawa, JPN
| | - Satoshi Hanada
- Anesthesia, University of Iowa Hospitals and Clinics, Iowa City, USA
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Wünsch VA, Köhl V, Breitfeld P, Bauer M, Sasu PB, Siebert HK, Dankert A, Stark M, Zöllner C, Petzoldt M. Hyperangulated blades or direct epiglottis lifting to optimize glottis visualization in difficult Macintosh video laryngoscopy: a non-inferiority analysis of a prospective observational study. Front Med (Lausanne) 2023; 10:1292056. [PMID: 38098848 PMCID: PMC10720620 DOI: 10.3389/fmed.2023.1292056] [Citation(s) in RCA: 1] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 10/26/2023] [Indexed: 12/17/2023] Open
Abstract
Purpose It is unknown if direct epiglottis lifting or conversion to hyperangulated videolaryngoscopes, or even direct epiglottis lifting with hyperangulated videolaryngoscopes, may optimize glottis visualization in situations where Macintosh videolaryngoscopy turns out to be more difficult than expected. This study aims to determine if the percentage of glottic opening (POGO) improvement achieved by direct epiglottis lifting is non-inferior to the one accomplished by a conversion to hyperangulated videolaryngoscopy in these situations. Methods One or more optimization techniques were applied in 129 difficult Macintosh videolaryngoscopy cases in this secondary analysis of a prospective observational study. Stored videos were reviewed by at least three independent observers who assessed the POGO and six glottis view grades. A linear mixed regression and a linear regression model were fitted. Estimated marginal means were used to analyze differences between optimization maneuvers. Results In this study, 163 optimization maneuvers (77 direct epiglottis lifting, 57 hyperangulated videolaryngoscopy and 29 direct epiglottis lifting with a hyperangulated videolaryngoscope) were applied exclusively or sequentially. Vocal cords were not visible in 91.5% of the cases with Macintosh videolaryngoscopy, 24.7% with direct epiglottis lifting, 36.8% with hyperangulated videolaryngoscopy and 0% with direct lifting with a hyperangulated videolaryngoscope. Conversion to direct epiglottis lifting improved POGO (mean + 49.7%; 95% confidence interval [CI] 41.4 to 58.0; p < 0.001) and glottis view (mean + 2.2 grades; 95% CI 1.9 to 2.5; p < 0.001). Conversion to hyperangulated videolaryngoscopy improved POGO (mean + 43.7%; 95% CI 34.1 to 53.3; p < 0.001) and glottis view (mean + 1.9 grades; 95% CI 1.6 to 2.2; p < 0.001). The difference in POGO improvement between conversion to direct epiglottis lifting and conversion to hyperangulated videolaryngoscopy is: mean 6.0%; 95% CI -6.5-18.5%; hence non-inferiority was confirmed. Conclusion When Macintosh videolaryngoscopy turned out to be difficult, glottis exposure with direct epiglottis lifting was non-inferior to the one gathered by conversion to hyperangulated videolaryngoscopy. A combination of both maneuvers yields the best result. Clinical trial registration ClinicalTrials.gov, NCT03950934.
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Affiliation(s)
- Viktor A. Wünsch
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Vera Köhl
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Philipp Breitfeld
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marcus Bauer
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Phillip B. Sasu
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hannah K. Siebert
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andre Dankert
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maria Stark
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Zöllner
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Petzoldt
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Park J, Park G, Kim DS, Kim M, Heo S, Jeong D, Chang H, Lee SU, Choi G, Lee GT, Shin TG, Park JE, Hwang SY. Effect of Blade Size on the First-Pass Success Rate of Endotracheal Intubation Using the C-MAC Video Laryngoscope. J Clin Med 2023; 12:7055. [PMID: 38002668 PMCID: PMC10672131 DOI: 10.3390/jcm12227055] [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: 09/22/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
We sought to determine whether blade size influences the first-pass success (FPS) rate when performing endotracheal intubation (ETI) with a C-MAC video laryngoscope (VL) in emergency department (ED) patients. This single-center, retrospective, observational study was conducted between August 2016 and July 2022. A total of 1467 patients was divided into two categories based on the blade size used during the first ETI attempt: blade-3 (n = 365) and blade-4 groups (n = 1102). The primary outcome was the FPS rate. The secondary outcomes included the glottic view, multiple attempt rate, and ETI-related complications. We used propensity score matching to reduce the potential confounders between the two groups. Among these, 363 pairs of matched propensity scores were generated. The FPS rate did not differ between the blade-3 (84.8%) and blade-4 groups (87.3%) in the matched cohort (p = 0.335). The multiple attempt rate did not differ significantly between groups (p = 0.289) and was 3.9% and 2.5% in the blade-3 and blade-4 groups, respectively. The difficult glottic view (11.3 vs. 6.9%, p = 0.039) and complication rates (15.4% vs. 10.5%, p = 0.047) were significantly higher in the blade-3 group than in the blade-4 group. The FPS rates of ETI with the blade-3 and blade-4 groups in adult patients in the ED did not differ significantly.
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Affiliation(s)
- Jeongyong Park
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Goeun Park
- Biomedical Statistics Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea
| | - Da Seul Kim
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Minha Kim
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Sejin Heo
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Daun Jeong
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Hansol Chang
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul 06355, Republic of Korea
| | - Se Uk Lee
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Goosang Choi
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Gun Tak Lee
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
- Department of Emergency Medicine, College of Medicine, Kangwon National University, Chuncheon 20341, Republic of Korea
| | - Tae Gun Shin
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
| | - Jong Eun Park
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
- Department of Emergency Medicine, College of Medicine, Kangwon National University, Chuncheon 20341, Republic of Korea
| | - Sung Yeon Hwang
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06355, Republic of Korea
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Ratajczyk P, Fedorczak M, Kluj P, Gaszynski T. A comparison of tracheal intubation using intubrite laryngoscope and conventional MAC laryngoscope: An open, prospective, crossover manikin study. Medicine (Baltimore) 2023; 102:e35846. [PMID: 37960794 PMCID: PMC10637480 DOI: 10.1097/md.0000000000035846] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 10/06/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND New devices are more available in the pre-hospital environment operational theaters and emergency departments. One is an intubrite laryngoscope (INT) with Dual LED lighting that combines ultraviolet and white LED. The study aimed to compare the efficacy of endotracheal intubation using INT and conventional laryngoscope performed by inexperienced paramedics (paramedics students) and paramedics with experience in advanced airways management in full and limited accessibility settings. METHODS It was an open, prospective, crossover manikin study. Sixty paramedics and paramedic students were recruited. Participants were divided into 2 equal groups depending on their experience (n = 30). Experienced participants were further randomly divided into 2 groups (n = 15). Inexperienced participants were also randomly divided into 2 groups (n = 15). The criterion of inexperience was 5 or fewer intubation by any laryngoscope. Inexperience participants were asked to perform tracheal intubation in standard pre-hospital settings (without limited access to manikin) (scenario A) and difficult pre-hospital settings (limited access to manikin - narrow space between benches) (scenario B). Experience participants were asked to intubate manikin in difficult pre-hospital settings. RESULTS In the normal pre-hospital environment, the success rate after the first attempt was 56,7% for conventional laryngoscope and 66,7% for intubrite. However, the overall effectiveness of tracheal intubation using both laryngoscopes in 3 attempts was 90% for both devices. The successful rate of first attempt intubation in a difficult environment by inexperienced was 73,3% for INT and 50% for conventional laryngoscope. Overall effectiveness was 83,3% and 86,7% respectively. The successful rate of first attempt intubation in the experienced group was 86,7% with INT compared to 60% with a conventional laryngoscope in difficult settings. Overall effectiveness was 96,7% for both devices. CONCLUSION Intubrite provided better working conditions and make up for deficiencies in successful tracheal intubation by inexperienced participants in a normal and difficult environment. Tracheal intubation with intubrite was more effective in the experienced group. Tracheal intubation effectiveness with intubrite was also higher in the experienced group.
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Affiliation(s)
- Pawel Ratajczyk
- Department of Anesthesiology and Intensive Therapy, Medical University of Lodz, Poland
| | - Michal Fedorczak
- Department of Anesthesiology and Intensive Therapy, Medical University of Lodz, Poland
| | - Przemyslaw Kluj
- Department of Anesthesiology and Intensive Therapy, Medical University of Lodz, Poland
| | - Tomasz Gaszynski
- Department of Anesthesiology and Intensive Therapy, Medical University of Lodz, Poland
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Lyons C, O'Sullivan EP. The airway and the British Journal of Anaesthesia: 100 years. Br J Anaesth 2023; 131:789-793. [PMID: 37775452 DOI: 10.1016/j.bja.2023.08.027] [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: 06/21/2023] [Revised: 08/20/2023] [Accepted: 08/25/2023] [Indexed: 10/01/2023] Open
Abstract
Airway-related articles have featured heavily in the British Journal of Anaesthesia since it was founded in 1923. In the 100 years thereafter, 1102 airway-related articles have been published in the journal, written by 2955 unique authors from 55 different countries. In this editorial, we highlight some of the major publications in airway management and their impact on the specialty. Summaries of the most cited articles are contained within online supplementary material as well as links to all airway-related articles for readers who wish to delve deeper into this body of work.
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Affiliation(s)
- Craig Lyons
- Department of Anaesthesia, Great Ormond Street Hospital for Children, London, UK.
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Mondal AK, Maiti AK, Chattopadhyay S, Bhar D. A randomised, double-blind, comparative study of preoperative magnesium sulphate versus zinc sulphate gargle for prevention of postoperative sore throat following endotracheal intubation. Indian J Anaesth 2023; 67:S261-S267. [PMID: 38187966 PMCID: PMC10768894 DOI: 10.4103/ija.ija_975_22] [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: 11/30/2022] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 01/09/2024] Open
Abstract
Background and Aims Magnesium sulphate and zinc sulphate have been reported to attenuate postoperative sore throat (POST). The study aims to compare the effect of preoperative magnesium sulphate and zinc sulphate gargle on the incidence and severity of POST following endotracheal intubation within 24 h. Methods After ethics committee approval, 132 patients were randomly allocated to three groups (M, Z and D). Fifteen minutes before laryngoscopy and tracheal intubation, patients assigned to groups M and Z received a solution for gargle containing magnesium sulphate 20 mg/kg and zinc sulphate containing 40 mg of elemental zinc dissolved in 20 ml of 5% dextrose solution, respectively. Group D received 20 ml of 5% dextrose solution. Incidence and severity of POST (4-point score: Grade 0- no sore throat, Grade 1- mild sore throat, Grade 2- moderate sore throat, Grade 3- severe sore throat) was assessed for 24 h after extubation. Statistica, Version 8.0 (StatSoft, Inc., Tulsa, Oklahoma, USA) was used for analysing the data. Results The lowest incidence of POST in group M was 13.6% (95% confidence interval [CI] 3.5-23.7) compared to 0% in group Z, whereas the highest incidence recorded in group M was 25% (95% CI 12.2-37.7) in contrast to 13.6% (95% CI 3.5-23.7) in group Z during the first 24 h after operation. It was observed that the incidence of mild POST (POST score 1) was significantly lower (P < 0.05) in group Z compared to group M in the first 4 h postoperatively. Conclusion Zinc sulphate gargle before laryngoscopy and tracheal intubation is more effective for reducing the incidence of POST than magnesium sulphate gargle.
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Affiliation(s)
- Amit Kumar Mondal
- Department of Anaesthesiology, Midnapore Medical College, Vidyasagar Road, Midnapore, Paschim Medinipur, West Bengal, India
| | - Asim Kumar Maiti
- Department of Anaesthesiology, Midnapore Medical College, Vidyasagar Road, Midnapore, Paschim Medinipur, West Bengal, India
| | - Suman Chattopadhyay
- Department of Anaesthesiology, Midnapore Medical College, Vidyasagar Road, Midnapore, Paschim Medinipur, West Bengal, India
| | - Debasish Bhar
- Department of Anaesthesiology, Midnapore Medical College, Vidyasagar Road, Midnapore, Paschim Medinipur, West Bengal, India
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Lin S, Lin Q, Huang X, Yu Q, Wang D. Surgical management of broad-based sessile vocal cord polyps: Transnasal vocal fold polypectomy versus microlaryngoscopic surgery: Our experience in 159 cases. Clin Otolaryngol 2023; 48:902-908. [PMID: 37532258 DOI: 10.1111/coa.14090] [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: 12/23/2022] [Revised: 07/07/2023] [Accepted: 07/15/2023] [Indexed: 08/04/2023]
Abstract
OBJECTIVES In this study, we retrospectively reviewed and compared the treatment outcomes and complications of office transnasal vocal fold polypectomy (TVFP) with those of microplarygoscopic surgery (MLS) for different clinical and histopathological features of broad-based sessile vocal fold polyps. METHODS We retrospectively reviewed the records of 159 consecutive patients with broad-based sessile vocal fold polyps treated by TVFP or MLS. The differences in efficacy and complication between these two surgical techniques were compared according to the different types of vocal fold polyps. RESULTS Satisfactory outcomes of both TVFP and MLS treatments were reported in patients with oedematous, gelatinous and vascular types of vocal fold polyps (p > .05). The efficacy of TVFP was slightly worse than MLS in fibrous polyps group (p < .05). The TVFP-treated patients did not exhibit obvious complications, whereas several MLS-treated patients had suffered different complications. CONCLUSION The therapeutic effects of both TVFP and MLS on the treatment of broad-based sessile vocal cord polyps are related to their clinical characteristics and histological types. Satisfactory outcomes are achieved in oedematous, gelatinous, and vascular types of polyps after either surgical procedure. TVFP has fewer surgical complications than MLS which can be a preferred option for the treatment of broad-based sessile vocal cord polyps at outpatient setting. TVFP also can be an alternative surgery option for patients who could not tolerate general anaesthesia or laryngeal suspension. In contrast, MLS has proven to be a particularly advantageous treatment in patients who have fibrous type of polyps.
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Affiliation(s)
- Shuchun Lin
- Department of Otolaryngology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Qin Lin
- Department of Otolaryngology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiaoting Huang
- Department of Otolaryngology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Qian Yu
- Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Desheng Wang
- Department of Otolaryngology, Fujian Medical University Union Hospital, Fuzhou, China
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Lotfi S, Mohamadi MS, Ahmadi A, Rezvani S, Sehat M, Tabaraii R. Success rates of endotracheal intubation using the standard method versus the modified-ramped position. Ann Med Surg (Lond) 2023; 85:5491-5496. [PMID: 37915676 PMCID: PMC10617870 DOI: 10.1097/ms9.0000000000001331] [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: 07/11/2023] [Accepted: 09/09/2023] [Indexed: 11/03/2023] Open
Abstract
Background The sniffing position used in intubation has disadvantages, including suboptimal glottic view, respiratory problems, increased risk of aspiration, and pain. In this regard, we have proposed new conditions to facilitate intubation and tube placement in patients with a Mallampati score higher than 2, by introducing a new position called the modified rapid airway management positioner (RAMP) position. The authors compared various parameters to improve intubation conditions between these two positions. Methods This intervention is a randomized clinical trial study, with a random sampling method that divides the patients into two groups: a control group placed in the standard position (S) and an intervention group placed in the modified (M) RAMP position. An anesthesiologist performed intubation. In group (S), patients were placed in the supine position as usual, and a pillow with a height of 10 cm was placed under their heads. In group (M), the patients were placed in the supine position on a modified RAMP with a triangular shape, 15 cm in height, and 80 cm in length, at a 30° angle. The pillow had lengths of 20 and 80 cm. Results In the present study, 112 patients were investigated, consisting of 58 women (51.8%) and 54 men (48.2%). The intubation time in the intervention group using the modified RAMP roll technique was significantly shorter (51.25 s) compared to the control group using the standard method (88.39 s) (P=0.019). Conclusion The results of the study showed that the modified RAMP roll improved the general conditions of intubation and led to a better view of the glottis in direct laryngoscopy. This is a very important aspect of intubation, and with a better view of the pharynx and glottis, the intubation procedure can be performed with higher quality, reducing the number of intubation attempts and the duration of the procedure.
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Affiliation(s)
- Sarah Lotfi
- Department of Obstetrics and Gynecology, School of Medicine, Nekouei-Hedayati Forghani Hospital
| | - Mohamad sepehr Mohamadi
- Clinical Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Abbas Ahmadi
- Clinical Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Sourena Rezvani
- Clinical Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Malihe Sehat
- Clinical Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Reihane Tabaraii
- Clinical Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
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Sampieri C, Baldini C, Azam MA, Moccia S, Mattos LS, Vilaseca I, Peretti G, Ioppi A. Artificial Intelligence for Upper Aerodigestive Tract Endoscopy and Laryngoscopy: A Guide for Physicians and State-of-the-Art Review. Otolaryngol Head Neck Surg 2023; 169:811-829. [PMID: 37051892 DOI: 10.1002/ohn.343] [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: 12/29/2022] [Revised: 03/03/2023] [Accepted: 03/23/2023] [Indexed: 04/14/2023]
Abstract
OBJECTIVE The endoscopic and laryngoscopic examination is paramount for laryngeal, oropharyngeal, nasopharyngeal, nasal, and oral cavity benign lesions and cancer evaluation. Nevertheless, upper aerodigestive tract (UADT) endoscopy is intrinsically operator-dependent and lacks objective quality standards. At present, there has been an increased interest in artificial intelligence (AI) applications in this area to support physicians during the examination, thus enhancing diagnostic performances. The relative novelty of this research field poses a challenge both for the reviewers and readers as clinicians often lack a specific technical background. DATA SOURCES Four bibliographic databases were searched: PubMed, EMBASE, Cochrane, and Google Scholar. REVIEW METHODS A structured review of the current literature (up to September 2022) was performed. Search terms related to topics of AI, machine learning (ML), and deep learning (DL) in UADT endoscopy and laryngoscopy were identified and queried by 3 independent reviewers. Citations of selected studies were also evaluated to ensure comprehensiveness. CONCLUSIONS Forty-one studies were included in the review. AI and computer vision techniques were used to achieve 3 fundamental tasks in this field: classification, detection, and segmentation. All papers were summarized and reviewed. IMPLICATIONS FOR PRACTICE This article comprehensively reviews the latest developments in the application of ML and DL in UADT endoscopy and laryngoscopy, as well as their future clinical implications. The technical basis of AI is also explained, providing guidance for nonexpert readers to allow critical appraisal of the evaluation metrics and the most relevant quality requirements.
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Affiliation(s)
- Claudio Sampieri
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
- Functional Unit of Head and Neck Tumors, Hospital Clínic, Barcelona, Spain
- Otorhinolaryngology Department, Hospital Clínic, Barcelona, Spain
| | - Chiara Baldini
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), University of Genoa, Genoa, Italy
| | - Muhammad Adeel Azam
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), University of Genoa, Genoa, Italy
| | - Sara Moccia
- Department of Excellence in Robotics and AI, The BioRobotics Institute, Pisa, Italy
| | - Leonardo S Mattos
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Isabel Vilaseca
- Functional Unit of Head and Neck Tumors, Hospital Clínic, Barcelona, Spain
- Otorhinolaryngology Department, Hospital Clínic, Barcelona, Spain
- Head Neck Clínic, Agència de Gestió d'Ajuts Universitaris i de Recerca, Barcelona, Catalunya, Spain
- Surgery and Medical-Surgical Specialties Department, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
- Translational Genomics and Target Therapies in Solid Tumors Group, Faculty of Medicine, Institut d́Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Giorgio Peretti
- Unit of Otorhinolaryngology-Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Alessandro Ioppi
- Unit of Otorhinolaryngology-Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
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Lee J, Ahn HJ, Kang MS, Choi KH, Lee YS, Oh B, Lee SH. Assessment of vocal fold movement through anterior-posterior view of videofluoroscopic swallowing study. Laryngoscope Investig Otolaryngol 2023; 8:1319-1323. [PMID: 37899859 PMCID: PMC10601545 DOI: 10.1002/lio2.1147] [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: 07/13/2023] [Accepted: 08/13/2023] [Indexed: 10/31/2023] Open
Abstract
Objective The aim of this study is to assess the value of using videofluoroscopic swallowing study (VFSS) for assessing vocal fold paralysis. Methods This was a retrospective study of patients who underwent VFSS with a vocal fold testing maneuver from June 2020 to February 2022, and who had undergone laryngoscopy within 2 weeks before or after VFSS. The vocal fold testing maneuver consisted of making an 'e' sound for about 2-3 seconds during VFSS anterior-posterior (AP) view. The diagnostic value of the VFSS was evaluated by a trained reviewer, who assessed the presence and laterality of vocal fold paralysis by examining videos of the patients performing the vocal fold testing maneuver. Intra-rater reliability was determined by evaluation of the videos by the same reviewer 2 weeks later, and inter-rater reliability was determined by evaluation by a second reviewer. Results Seventy patients were enrolled in the study. The positive predictive value was 91.43% and the intra-rater and inter-rater reliabilities, as determined by Cohen's kappa value, were 0.746 and 0.824 respectively. Conclusions The presence and laterality of vocal fold paralysis were identified accurately and reliably by the reviewers, showing that VFSS can be used to assess vocal fold paralysis. Level of evidence 2.
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Affiliation(s)
- JoonHee Lee
- Department of Rehabilitation MedicineAsan Medical Center, University of Ulsan College of MedicineSeoulRepublic of Korea
| | - Hye Joon Ahn
- Department of Rehabilitation MedicineAsan Medical Center, University of Ulsan College of MedicineSeoulRepublic of Korea
| | - Min Soo Kang
- Department of Rehabilitation MedicineAsan Medical Center, University of Ulsan College of MedicineSeoulRepublic of Korea
| | - Kyoung Hyo Choi
- Department of Rehabilitation MedicineAsan Medical Center, University of Ulsan College of MedicineSeoulRepublic of Korea
| | - Yoon Se Lee
- Department of OtolaryngologyAsan Medical Center, University of Ulsan College of MedicineSeoulRepublic of Korea
| | - Byung‐Mo Oh
- Department of Rehabilitation MedicineSeoul National University Hospital, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Seung Hak Lee
- Department of Rehabilitation MedicineAsan Medical Center, University of Ulsan College of MedicineSeoulRepublic of Korea
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Filauro M, Ioppi A, Vallin A, Sampieri C, De Vecchi M, Gabella G, Benzi P, Mora F, Peretti G. Office-Based Treatment of Vocal Fold Polyps and Reinke's Edema: A Rational Comparison With Suspension Laryngoscopy. Laryngoscope 2023; 133:2665-2672. [PMID: 36647733 DOI: 10.1002/lary.30576] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/28/2022] [Revised: 12/17/2022] [Accepted: 01/05/2023] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Benign laryngeal lesions have traditionally been treated through suspension laryngoscopy under general anesthesia (GA). Recently, the development of operative videoendoscopes coupled with photoangiolytic lasers has allowed clinicians to treat these conditions in the outpatient clinic. We report our experience in the office-based (OB) setting for the treatment of patients affected by vocal fold polyps (VFPs) and Reinke's edema (RE), comparing it to patients treated under GA. METHODS A retrospective analysis was conducted on patients affected by VFP or RE. A 445 nm diode blue laser was used through the operative channel of a flexible video-endoscope for OB procedures, while GA surgeries were carried out with cold steel instrumentation. The Voice Handicap Index-10 (VHI-10) represented the primary outcome. Endoscopic outcomes, duration, and morbidity of the procedures were investigated as secondary outcomes. RESULTS A total of 153 patients were retrospectively enrolled. 52 were treated in an OB setting, while 91 underwent GA. Regarding patients with RE, both the OB and GA cohorts showed a significant improvement in VHI-10 (from 12.7 to 2.6 and 19.5 to 5.1, respectively; p < 0.001), as did those with VFPs (from 11.8 to 2.3 and 15.9 to 2.9 respectively; p < 0.001). No differences were found when comparing VHI-10 in the OB and GA cohorts. The mean procedural time of OB treatment (4.9 min) was significantly shorter than GA (37.1 min). No adverse events were reported. CONCLUSION Our data demonstrate the efficacy and safety of the OB setting. For selected patients, OB treatments offer comparable vocal outcomes, favorable morbidity, and reduced operation times, making them an appealing alternative to the traditional approach. LEVEL OF EVIDENCE 3 Laryngoscope, 133:2665-2672, 2023.
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Affiliation(s)
- Marta Filauro
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
- Department of Medical Science (DIMES), University of Genoa, Genoa, Italy
| | - Alessandro Ioppi
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Alberto Vallin
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Claudio Sampieri
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Marta De Vecchi
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Giulia Gabella
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Pietro Benzi
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Francesco Mora
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Giorgio Peretti
- Unit of Otorhinolaryngology - Head and Neck Surgery, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
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Rajan S, Abubaker R, Kala RA, Sasikumar NK, Kannan MV, Kumar L. Effects of oral melatonin premedication on hemodynamic responses to intubation, anesthetic requirements and postoperative sedation: A randomized trial. J Anaesthesiol Clin Pharmacol 2023; 39:596-602. [PMID: 38269180 PMCID: PMC10805198 DOI: 10.4103/joacp.joacp_159_22] [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: 04/24/2022] [Revised: 06/18/2022] [Accepted: 07/05/2022] [Indexed: 01/26/2024] Open
Abstract
Background and Aims Sedative effects of melatonin may have an additive effect on general anesthesia (GA). We compared hemodynamic response to intubation following oral premedication with melatonin versus placebo. Induction dose of propofol, isoflurane and fentanyl consumption were also compared. Material and Methods This prospective, double-blinded study was conducted in fifty patients randomized into two equal groups. Group M received oral melatonin 6 mg and group P a placebo two hours before surgery. All patients were induced with intravenous propofol of 1.5-2.5mg/kg till loss of response to verbal commands, three minutes after vecuronium, laryngoscopy was done and trachea was intubated. Heart rate (HR) and mean arterial pressures (MAP) were recorded before premedication, before induction, immediately after induction and then at 1,3,5 and 10 minutes after intubation. Results Mean HR was comparable in both groups throughout the study period. Group M had significantly lower MAP before induction and immediately after induction (P < 0.05). At all other time points MAP remained comparable in both groups. Mean isoflurane consumption was significantly lower in group M compared to group P (14.8 ± 4.2 vs 19.7 ± 3.2 mL). Propofol requirement for induction was also significantly lower in group M (102.4 ± 19.6 vs 122.4 ± 26.3mg). Intraoperative fentanyl consumption was comparable. Conclusion Oral premedication with melatonin 6mg administered two hours before surgery significantly reduced MAP before and after induction of GA with a significant reduction in dose of propofol requirement. Titrating induction dose of propofol till loss of response to verbal commands did not effectively attenuate responses to laryngoscopy and intubation following melatonin oral premedication.
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Affiliation(s)
- Sunil Rajan
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Reema Abubaker
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Revathy Ajayachandran Kala
- Department of General Surgery, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Niranjan Kumar Sasikumar
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Mani Vignesh Kannan
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Lakshmi Kumar
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Hamam YA, Alqeeq BF, Hamam M, Abuhelal AM, Saqer SA. Pediatric laryngeal schwannoma: a case report. J Surg Case Rep 2023; 2023:rjad587. [PMID: 37873048 PMCID: PMC10590634 DOI: 10.1093/jscr/rjad587] [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: 09/25/2023] [Accepted: 10/05/2023] [Indexed: 10/25/2023] Open
Abstract
Schwannomas are benign tumors originating from Schwann cells in the peripheral nervous system. They mostly occur in the head and neck region but are rare in the larynx, and present with various symptoms. Surgical removal is the recommended treatment. This study presents a 12-year-old female with sudden onset hemoptysis, snoring, difficulty breathing, dysphagia, and voice changes. On examination, she was conscious and had muffled voice while speaking, without signs of respiratory distress. Endoscopic laryngoscopy revealed a large laryngeal mass obstructing the vocal cords. Endoscopic excision and biopsy confirmed the presence of the laryngeal schwannoma. Postoperative recovery was uneventful, with normal vocal cord function and no recurrence at follow-up.
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Affiliation(s)
- Yaser A Hamam
- Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
| | - Basel F Alqeeq
- Faculty of Medicine, Islamic University of Gaza, Gaza, Palestine
| | - Mohammed Hamam
- Faculty of Medicine, Islamic University of Gaza, Gaza, Palestine
| | - Ahmed M Abuhelal
- Otolaryngology Department, Nasser Medical Complex, Gaza, Palestine
| | - Saleh A Saqer
- Otolaryngology Department, Nasser Medical Complex, Gaza, Palestine
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50
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Seok SY, Lee DH, Lee HR, Cho JH, Hwang CJ, Park S. Atrophy of the Posterior Cricoarytenoid Muscle as an Indicator of a Recurrent Laryngeal Nerve Injury History Before Revision Anterior Cervical Spine Surgery. Global Spine J 2023:21925682231200781. [PMID: 37700436 DOI: 10.1177/21925682231200781] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/14/2023] Open
Abstract
STUDY DESIGN Retrospective study. OBJECTIVES In our recent study, we observed some cases of symptomatic normal vocal cord motility instead of asymptomatic vocal cord palsy (VCP) in preoperative laryngoscopy of a revision anterior cervical spine surgery (ACSS) cohort. We assumed the intrinsic muscle atrophy caused by recurrent laryngeal nerve injury could cause vocal cord-related symptoms. Thus, radiological examinations were reviewed in relation to the posterior cricoarytenoid (PCA) muscle, one of the intrinsic muscles. METHODS We retrospectively analyzed 64 patients who underwent a revision ACSS. Patients with vocal cord-related symptoms were classified as symptomatic group (group S, n = 11), and those without symptoms as asymptomatic group (group AS, n = 53). The bilateral size and signal intensity of the PCA muscles in these patients were measured in the axial view with preoperative computed tomography (CT) and magnetic resonance imaging (MRI) evaluations. Since the size and signal intensity values were different on each image, the ratios of the contralateral and ipsilateral muscle values were analyzed for each modality. RESULTS There was no VCP on laryngoscopy study. However, the mean ratio of the PCA muscle size on CT was 1.40 ± .37 in group S and 1.02 ± .12 in group AS (P = .007). These values on the MRI were 1.49 ± .45 in group S and 1.02 ± .14 in group AS, which was also a significant difference (P = .008). CONCLUSIONS Evaluating the size of the PCA muscle before revision ACSS may predict a previous recurrent laryngeal nerve injury. Careful planning for the appropriate approach should be undertaken if vocal cord-related symptoms and atrophy of PCA muscle are evident.
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Affiliation(s)
- Sang Yun Seok
- Department of Orthopedic Surgery, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Dong-Ho Lee
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyung Rae Lee
- Department of Orthopedic Surgery, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, Korea
| | - Jae Hwan Cho
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Ju Hwang
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sehan Park
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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