76
|
Tempelaere C, Vincent C, Court C. Percutaneous posterior fixation for unstable pelvic ring fractures. Orthop Traumatol Surg Res 2017; 103:1169-1171. [PMID: 28964921 DOI: 10.1016/j.otsr.2017.07.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 07/11/2017] [Accepted: 07/25/2017] [Indexed: 02/02/2023]
Abstract
UNLABELLED Several posterior fixation techniques for unstable pelvic ring fractures have been described. Here, we present a minimally invasive, percutaneous technique to fix the two posterior iliac crests using spinal instrumentation. Between September 2008 and March 2012, 11 patients with a mean age of 36.4 years were operated because of a vertically unstable Tile C pelvic ring fracture. Posterior fixation was performed using two polyaxial screws in each iliac crest with two subfascial connector rods. At the final follow-up, all patients were evaluated clinically and radiologically. The mean surgery time was 45 minutes; there were no intraoperative complications. At a mean follow-up of four years, the functional Majeed score was excellent in eight patients and good in three patients. The radiological results were excellent in eight patients and good in three patients. Percutaneous posterior fixation of vertically unstable pelvic fractures leads to good functional and radiological outcomes. TYPE OF STUDY Technical note, retrospective. LEVEL OF EVIDENCE IV.
Collapse
|
77
|
Laccourreye O, Bonfils P, Garrel R, Jankowski R, Karkas A, Leboulanger N, Makeieff M, Righini C, Vincent C, Martin C. Data sharing to serve ethics, transparency and reproducibility of medical science. Eur Ann Otorhinolaryngol Head Neck Dis 2017; 134:297-298. [PMID: 28919279 DOI: 10.1016/j.anorl.2017.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
78
|
Risoud M, Sircoglou J, Dedieu G, Tardivel M, Vincent C, Bonne NX. Imaging and cell count in cleared intact cochlea in the Mongolian gerbil using laser scanning confocal microscopy. Eur Ann Otorhinolaryngol Head Neck Dis 2017; 134:221-224. [DOI: 10.1016/j.anorl.2017.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
79
|
Serou N, Sahota L, Husband AK, Forrest SP, Moorthy K, Vincent C, Slight RD, Slight SP. Systematic review of psychological, emotional and behavioural impacts of surgical incidents on operating theatre staff. BJS Open 2017; 1:106-113. [PMID: 29951612 PMCID: PMC5989958 DOI: 10.1002/bjs5.21] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 08/30/2017] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Adverse surgical incidents affect both patients and health professionals. This study sought to explore the effect of surgical incidents on operating theatre staff and their subsequent behaviours. METHODS Eligible studies were primary research or reviews that focused on the effect of incidents on operating theatre staff in primary, secondary or tertiary care settings. MEDLINE, Embase, CINALH and PsycINFO were searched. A data extraction form was used to capture pertinent information from included studies and the Critical Appraisal Skills Programme (CASP) tool to appraise their quality. PRISMA-P reporting guidelines were followed and the review is registered with PROSPERO. RESULTS A total of 3918 articles were identified, with 667 duplicates removed and 3230 excluded at the title, abstract and full-text stages. Of 21 included articles, eight focused on the impact of surgical incidents on surgeons and anaesthetists. Only two involved theatre nurses and theatre technicians. Five key themes emerged: the emotional impact on health professionals, organization culture and support, individual coping strategies, learning from surgical complications and recommended changes to practice. CONCLUSION Health professionals suffered emotional distress and often changed their behaviour following a surgical incident. Both organizations and individual clinicians can do a great deal to support staff in the aftermath of serious incidents.
Collapse
|
80
|
Lear R, Godfrey A, Riga C, Norton C, Vincent C, Bicknell C. The Impact of System Factors on Quality and Safety in Arterial Surgery: A Systematic Review. J Vasc Surg 2017. [DOI: 10.1016/j.jvs.2017.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
81
|
Vergé M, Cochet H, Morlon L, Reynaud A, Peyrou J, Vincent C, Dijos M, Ritter P, Lafitte S, Réant P. Hypertrophic cardiomyopathy characterisation according to global, regional, and multi-layer longitudinal strain analysis. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2017. [DOI: 10.1016/s1878-6480(17)30041-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
82
|
Lear R, Godfrey AD, Riga C, Norton C, Vincent C, Bicknell CD. The Impact of System Factors on Quality and Safety in Arterial Surgery: A Systematic Review. Eur J Vasc Endovasc Surg 2017; 54:79-93. [PMID: 28506562 DOI: 10.1016/j.ejvs.2017.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/18/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVE A systems approach to patient safety proposes that a wide range of factors contribute to surgical outcome, yet the impact of team, work environment, and organisational factors, is not fully understood in arterial surgery. The aim of this systematic review is to summarize and discuss what is already known about the impact of system factors on quality and safety in arterial surgery. DATA SOURCES A systematic review of original research papers in English using MEDLINE, Embase, PsycINFO, and Cochrane databases, was performed according to PRISMA guidelines. REVIEW METHODS Independent reviewers selected papers according to strict inclusion and exclusion criteria, and using predefined data fields, extracted relevant data on team, work environment, and organisational factors, and measures of quality and/or safety, in arterial procedures. RESULTS Twelve papers met the selection criteria. Study endpoints were not consistent between papers, and most failed to report their clinical significance. A variety of tools were used to measure team skills in five papers; only one paper measured the relationship between team factors and patient outcomes. Two papers reported that equipment failures were common and had a significant impact on operating room efficiency. The influence of hospital characteristics on failure-to-rescue rates was tested in one large study, although their conclusions were limited to the American Medicare population. Five papers implemented changes in the patient pathway, but most studies failed to account for potential confounding variables. CONCLUSIONS A small number of heterogenous studies have evaluated the relationship between system factors and quality or safety in arterial surgery. There is some evidence of an association between system factors and patient outcomes, but there is more work to be done to fully understand this relationship. Future research would benefit from consistency in definitions, the use of validated assessment tools, measurement of clinically relevant endpoints, and adherence to national reporting guidelines.
Collapse
|
83
|
Greig P, Higham H, Darbyshire J, Vincent C. Go/no-go decision in anaesthesia: wide variation in risk tolerance amongst anaesthetists. Br J Anaesth 2017; 118:740-746. [DOI: 10.1093/bja/aew444] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2016] [Indexed: 11/14/2022] Open
|
84
|
Anyushin AV, Abramov PA, Gushchin AL, Vincent C, Sokolov MN. An improved method for the synthesis of [ZnW12O40]6– and its reaction with [Pt(OH)4(H2O)2]: Crystal structures of (H2NMe2)5H[ZnW12O40] · 3.5H2O and K6Na2[PtW6O24] · 11H2O. RUSS J INORG CHEM+ 2017. [DOI: 10.1134/s0036023617040027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
85
|
Chen F, Shapiro GI, Bennett KA, Ingram SN, Thompson D, Vincent C, Russell DJF, Embling CB. Shipping noise in a dynamic sea: a case study of grey seals in the Celtic Sea. MARINE POLLUTION BULLETIN 2017; 114:372-383. [PMID: 27677390 DOI: 10.1016/j.marpolbul.2016.09.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/21/2016] [Accepted: 09/22/2016] [Indexed: 06/06/2023]
Abstract
Shipping noise is a threat to marine wildlife. Grey seals are benthic foragers, and thus experience acoustic noise throughout the water column, which makes them a good model species for a case study of the potential impacts of shipping noise. We used ship track data from the Celtic Sea, seal track data and a coupled ocean-acoustic modelling system to assess the noise exposure of grey seals along their tracks. It was found that the animals experience step changes in sound levels up to ~20dB at a frequency of 125Hz, and ~10dB on average over 10-1000Hz when they dive through the thermocline, particularly during summer. Our results showed large seasonal differences in the noise level experienced by the seals. These results reveal the actual noise exposure by the animals and could help in marine spatial planning.
Collapse
|
86
|
Bonne NX, Dubrulle F, Risoud M, Vincent C. How to perform 3D reconstruction of skull base tumours. Eur Ann Otorhinolaryngol Head Neck Dis 2016; 134:117-120. [PMID: 27720372 DOI: 10.1016/j.anorl.2016.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The surgical management of skull base lesions is difficult due to the complex anatomy of the region and the intimate relations between the lesion and adjacent nerves and vessels. Minimally invasive approaches are increasingly used in skull base surgery to ensure an optimal functional prognosis. Three-dimensional (3D) computed tomography (CT) reconstruction facilitates surgical planning by visualizing the anatomical relations of the lesions in all planes (arteries, veins, nerves, inner ear) and simulation of the surgical approach in the operating position. Helical CT angiography is performed with optimal timing of the injection in terms of tumour and vessel contrast enhancement. 3D definition of each structure is based on colour coding by automatic thresholding (bone, vessels) or manual segmentation on each slice (tumour, nerves, inner ear). Imaging is generally presented in 3 dimensions (superior, coronal, sagittal) with simulation of the surgical procedure (5 to 6 reconstructions in the operating position at different depths).
Collapse
|
87
|
Linder T, Mulazimoglu S, El Hadi T, Darrouzet V, Ayache D, Somers T, Schmerber S, Vincent C, Mondain M, Lescanne E, Bonnard D. Iatrogenic facial nerve injuries during chronic otitis media surgery: a multicentre retrospective study. Clin Otolaryngol 2016; 42:521-527. [PMID: 27661064 DOI: 10.1111/coa.12755] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To give an insight into why, when and where iatrogenic facial nerve (FN) injuries may occur and to explain how to deal with them in an emergency setting. DESIGN AND SETTING Multicentre retrospective study in eight tertiary referral hospitals over 17 years. PARTICIPANTS Twenty patients with partial or total FN injury during surgery for chronic otitis media (COM) were revised. MAIN OUTCOME MEASURES Indication and type of surgery, experience of the surgeon, intra- and postoperative findings, value of CT scanning, patient management and final FN outcome were recorded. RESULTS In 12 cases, the nerve was completely transected, but the surgeon was unaware in 11 cases. A minority of cases occurred in academic teaching hospitals. Tympanic segment, second genu and proximal mastoid segments were the sites involved during injury. The FN was not deliberately identified in 18 patients at the time of injury, and nerve monitoring was only applied in one patient. Before revision surgery, CT scanning correctly identified the lesion site in 11 of 12 cases and depicted additional lesions such as damage to the lateral semicircular canal. A greater auricular nerve graft was interposed in 10 cases of total transection and in one partially lesioned nerve: seven of them resulted in an HB III functional outcome. In two of the transected nerves, rerouting and direct end-to-end anastomosis was applied. A simple FN decompression was used in four cases of superficially traumatised nerves. CONCLUSIONS We suggest checklists for preoperative, intraoperative and postoperative management to prevent and treat iatrogenic FN injury during COM surgery.
Collapse
|
88
|
Debowska R, Pasikowska M, Bazela K, Szczepanowska J, Ciescinska C, Vincent C, Napierala M, Szewczyk A, Lewandowska M, Eris I. 526 Plant flavonoid activating potassium channels – naringenin for vitiligo skin care. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
89
|
Debowska R, Pasikowska M, Kisiel K, Vincent C, Ciescinska C, Zielinska J, Burczy M, Eris I. 325 Safety assessment of leave-on emollients intended for AD skin. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
90
|
Bazela K, Debowska R, Pasikowska M, Kisiel K, Vincent C, Ciescinska C, Burczy M, Chelstowska-Pazdziorko J, Eris I. 327 Psoriatic skin care – in vitro and in vivo safety and efficacy study of products based on pale ichthyol. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
91
|
Lear R, Riga C, Godfrey AD, Falaschetti E, Cheshire NJ, Van Herzeele I, Norton C, Vincent C, Darzi AW, Bicknell CD. Multicentre observational study of surgical system failures in aortic procedures and their effect on patient outcomes. Br J Surg 2016; 103:1467-75. [PMID: 27557606 DOI: 10.1002/bjs.10275] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/09/2016] [Accepted: 06/21/2016] [Indexed: 11/09/2022]
Abstract
BACKGROUND Vascular surgical care has changed dramatically in recent years with little knowledge of the impact of system failures on patient safety. The primary aim of this multicentre observational study was to define the landscape of surgical system failures, errors and inefficiency (collectively termed failures) in aortic surgery. Secondary aims were to investigate determinants of these failures and their relationship with patient outcomes. METHODS Twenty vascular teams at ten English hospitals trained in structured self-reporting of intraoperative failures (phase I). Failures occurring in open and endovascular aortic procedures were reported in phase II. Failure details (category, delay, consequence), demographic information (patient, procedure, team experience) and outcomes were reported. RESULTS There were strong correlations between the trainer and teams for the number and type of failures recorded during 88 procedures in phase I. In 185 aortic procedures, teams reported a median of 3 (i.q.r. 2-6) failures per procedure. Most frequent failures related to equipment (unavailability, failure, configuration, desterilization). Most major failures related to communication. Fourteen failures directly harmed 12 patients. Significant predictors of an increased failure rate were: endovascular compared with open repair (incidence rate ratio (IRR) for open repair 0·71, 95 per cent c.i. 0·57 to 0·88; P = 0·002), thoracic aneurysms compared with other aortic pathologies (IRR 2·07, 1·39 to 3·08; P < 0·001) and unfamiliarity with equipment (IRR 1·52, 1·20 to 1·91; P < 0·001). The major failure total was associated with reoperation (P = 0·011), major complications (P = 0·029) and death (P = 0·027). CONCLUSION Failure in aortic procedures is frequently caused by issues with team-working and equipment, and is associated with patient harm. Multidisciplinary team training, effective use of technology and new-device accreditation may improve patient outcomes.
Collapse
|
92
|
Samra R, Car J, Majeed A, Vincent C, Aylin P. How to monitor patient safety in primary care? Healthcare professionals' views. JRSM Open 2016; 7:2054270416648045. [PMID: 27540488 PMCID: PMC4973401 DOI: 10.1177/2054270416648045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective To identify patient safety monitoring strategies in primary care. Design Open-ended questionnaire survey. Participants A total of 113 healthcare professionals returned the survey from a group of 500 who were invited to participate achieving a response rate of 22.6%. Setting North-West London, United Kingdom. Method A paper-based and equivalent online survey was developed and subjected to multiple stages of piloting. Respondents were asked to suggest strategies for monitoring patient safety in primary care. These monitoring suggestions were then subjected to a content frequency analysis which was conducted by two researchers. Main Outcome measures Respondent-derived monitoring strategies. Results In total, respondents offered 188 suggestions for monitoring patient safety in primary care. The content analysis revealed that these could be condensed into 24 different future monitoring strategies with varying levels of support. Most commonly, respondents supported the suggestion that patient safety can only be monitored effectively in primary care with greater levels of staffing or with additional resources. Conclusion Approximately one-third of all responses were recommendations for strategies which addressed monitoring of the individual in the clinical practice environment (e.g. GP, practice nurse) to improve safety. There was a clear need for more staff and resource set aside to allow and encourage safety monitoring. Respondents recommended the dissemination of specific information for monitoring patient safety such as distributing the lessons of significant event audits amongst GP practices to enable shared learning.
Collapse
|
93
|
Allagui MS, Hfaiedh N, Vincent C, Guermazi F, Murat JC, Croute F, El Feki A. Changes in growth rate and thyroid- and sex-hormones blood levels in rats under sub-chronic lithium treatment. Hum Exp Toxicol 2016; 25:243-50. [PMID: 16758766 DOI: 10.1191/0960327106ht620oa] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Lithium therapy, mainly used in curing some psychiatric diseases, is responsible for numerous undesirable side effects. The present study is a contribution to the understanding of the pathophysiological mechanisms underlying lithium toxicity. Male and female mature rats were divided into three batches and fed commercial pellets: one batch was the control and the second and third batches were given 2 g (Li1) and 4 g (Li2) of lithium carbonate/kg of food/day, respectively. After 7, 14, 21 and 28 days, serum levels of free tri-iodothyronine (FT3), thyroxine (FT4), testosterone and estradiol were measured. Attention was also paid to growth rate and a histological examination of testes or vaginal mucosa was carried out. In treated rats, a dose-dependent loss of appetite and a decrease in growth rate were observed, together with symptoms of polydypsia, polyuria and diarrhea. Lithium serum concentrations increased from 0.44 mM (day 7) to 1.34 mM (day 28) in Li1 rats and from 0.66 to 1.45 mM (day 14) in Li2 rats. Li2 treatment induced a high mortality after 14 days, reaching 50-60% in female and male animals. From these data, the LD50 (14 days Li2 chronic treatment) was calculated to be about 0.3 g/day per kilogram of animal, leading to Li serum concentrations of about 1.4 mM. A significant decrease of FT3 and FT4 was observed in treated rats. This effect appeared immediately for the highest dose and was more pronounced for FT3, resulting in an increase of the FT4/FT3 ratio. In males, testosterone decreased and spermatogenesis was stopped. Conversely, in females, estradiol increased in a dose-dependent manner as the animals were blocked in the diestrus phase at day 28. This finding supports a possible antagonistic effect of lithium on the estradiol receptors.
Collapse
|
94
|
Gehrke M, Sircoglou J, Gnansia D, Tourrel G, Willart JF, Danede F, Lacante E, Vincent C, Siepmann F, Siepmann J. Ear Cubes for local controlled drug delivery to the inner ear. Int J Pharm 2016; 509:85-94. [DOI: 10.1016/j.ijpharm.2016.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 02/06/2023]
|
95
|
Risoud M, Bonne NX, Fourdrinier M, Hubert T, Vincent C. Technical note for post-auricular route surgery in Mongolian gerbil. Hear Res 2016; 337:65-9. [PMID: 27244698 DOI: 10.1016/j.heares.2016.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 05/19/2016] [Accepted: 05/24/2016] [Indexed: 11/19/2022]
Abstract
The Mongolian gerbil (Meriones unguiculatus) is commonly used in hearing research because the hearing frequency spectrum of the gerbil is rather similar to that of the human being. However, a precise description of the surgical post-auricular route has not been reported. The aim of this technical note is to provide details on the procedure and the surgical anatomy of the post-auricular route in the Mongolian gerbil. Surgery was performed under general anesthesia on eight (2 males and 6 females) adult Mongolian gerbils. All steps of the post-auricular route were detailed. This surgery provided an access to the following structures: the semi-circular posterior and lateral canals, the external auditory meatus, the tympanic membrane, the round window, the stapes, the stapedial artery and the reliefs of the cochlea. No anatomic variation was noticed among the 8 animals. This post-auricular route in the Mongolian gerbil defines a brief and simple surgery, overall standardized as a consequence of the absence of common anatomic variation, with painless and uncomplicated post-operative stage.
Collapse
|
96
|
Picry A, Bonne NX, Ding J, Aboukais R, Lejeune JP, Baroncini M, Dubrulle F, Vincent C. Long-term growth rate of vestibular schwannoma in neurofibromatosis 2: A volumetric consideration. Laryngoscope 2016; 126:2358-62. [PMID: 27075822 DOI: 10.1002/lary.25976] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 02/12/2016] [Accepted: 02/22/2016] [Indexed: 11/08/2022]
Abstract
OBJECTIVES/HYPOTHESIS To determine the long-term growth rate of vestibular schwannoma (VS) in neurofibromatosis type 2 (NF2) patients based on volumetric measurements. STUDY DESIGN Retrospective review. METHODS We retrospectively reviewed magnetic resonance imaging (MRI) scans acquired from patients with NF2 from 1999 to 2013. Patients with an annual radiologic follow-up over at least 3 consecutive years were included. Volumetric VS growth was prospectively measured using a three-dimensional imaging workstation and through manual contouring of the lesion. Time to tumor progression was assessed according to the Response Evaluation in Neurofibromatosis and Schwannomatosis Tumor Measurement Group. RESULTS Eighteen patients presenting with a total of 26 VSs were included. The mean age at diagnosis was 26.1 years (range, 7 to 49 years). One hundred five MRI scans were analyzed during a median radiological follow-up of 5.6 years (range, 3 to 12 years). The annual volume and diameter growth rates were respectively 218.3 mm(3) /yr (range, -10 to 1,250 mm(3) /yr) and 0.9 mm/yr (range, -0.5 to 4.5 mm/yr). Time to tumor progression was 3 years (median survival). There was a weak correlation between volumetric and linear measurements (P < .0001, linear regression, n = 26, r(2) = 0.58). Among the 26 VSs, 76.9% (20/26) showed progression (VS growth more than 20%), 19.2% were stable, and 3.9% (1/26) exhibited shrinkage (spontaneous regression of more than 20% of the initial volume). CONCLUSIONS This study helps to assess the long-term growth profile of VS in a population of NF2 patients with untreated VS. These data could help to better acknowledge VS natural growth history. LEVEL OF EVIDENCE 4 Laryngoscope, 126:2358-2362, 2016.
Collapse
|
97
|
Laccourreye O, Bonfils P, Denoyelle F, Garrel R, Jankowski R, Karkas A, Makeieff M, Righini C, Vincent C, Martin C. Analysis of case reports submitted to the European Annals of Otorhinolaryngology Head & Neck Diseases. Eur Ann Otorhinolaryngol Head Neck Dis 2016; 133:171-4. [PMID: 26879581 DOI: 10.1016/j.anorl.2016.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To assess flaws, rejection rate and reasons for rejection of case reports submitted for publication in the European Annals of Otorhinolaryngology Head & Neck Diseases. MATERIALS AND METHODS A prospective analysis of flaws noted in reviewing 118 case reports from 29 countries consecutively submitted to the European Annals of Otorhinolaryngology Head & Neck Diseases during the period Sept. 1, 2014 to Sept. 30, 2015. RESULTS The most frequent flaws, noted in 74.5% of cases, were: lack of originality (more than 15 such cases previously reported in the medical literature) and lack of new data contributing to the medical literature. Overall, 5% of the cases were accepted for publication, 7% were not resubmitted by the authors, and 88% were rejected. On univariate analysis, none of the variables under analysis correlated with acceptance or rejection of the submitted case. Editorial decision time varied from 1 to 7months (median, 1 month). In 16.3% of the 104 cases of rejection (17/104), the editors suggested resubmission in the section "Letter to the Editor" or "What is your diagnosis?"; 15 of the 17 reports were resubmitted, and 10 (66.6%) were ultimately accepted for publication. CONCLUSION The editorial committee of the European Annals of Otorhinolaryngology Head & Neck Diseases hope that the present data and review of the literature will provide authors with a framework to avoid major errors leading to rejection and will speed publication of the case reports they submit to our columns in the near future.
Collapse
|
98
|
Bonne NX, Risoud M, Wilkinson EP, Aboukais R, Baroncini M, Lejeune JP, Vincent C. Infrared videoangiographic assessment of cochlear nerve vasculature during middle fossa surgery. Laryngoscope 2016; 126:2597-2600. [DOI: 10.1002/lary.25859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 12/01/2015] [Accepted: 12/10/2015] [Indexed: 11/08/2022]
|
99
|
Saey D, Coats V, Moffet H, Vincent C, Maltais F, Tremblay L. Faisabilité d’un programme de téléréadaptation en oncologie pulmonaire. Rev Mal Respir 2016. [DOI: 10.1016/j.rmr.2015.10.645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
100
|
Gehrke M, Sircoglou J, Vincent C, Siepmann J, Siepmann F. How to adjust dexamethasone mobility in silicone matrices: A quantitative treatment. Eur J Pharm Biopharm 2015; 100:27-37. [PMID: 26686648 DOI: 10.1016/j.ejpb.2015.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 10/28/2015] [Accepted: 11/30/2015] [Indexed: 01/12/2023]
Abstract
Silicone-based drug delivery systems offer a great potential to improve the therapeutic efficacy and safety of a large variety of medical treatments, e.g. allowing for local long-term delivery of active agents to the inner ear. Different formulation parameters can be varied to adjust desired drug release kinetics. However, often only qualitative information is available on their effects, and product optimization is cumbersome. The aim of this study was to provide a quantitative analysis, allowing also for theoretical predictions of the impact of the device design on system performance. Dexamethasone was incorporated into thin films based on different types of silicones (e.g. varying in the type of side chains and contents of amorphous silica), optionally containing different types and amounts of poly(ethylene glycol) (PEG) (5% or 10%). Furthermore, the initial drug content was altered (from 10% to 50%). In most cases, an analytical solution of Fick's second law could be used to describe the resulting drug release kinetics from the films and to determine the respective "apparent" diffusion coefficient of the drug (which varied from 2×10(-14) to 2×10(-12)cm(2)/s, depending on the system's composition). Thus, the impact of the investigated formulation parameters on drug mobility in the polymeric matrices could be quantitatively described. Importantly, the knowledge of the "apparent" drug diffusivity can be used to theoretically predict the resulting release kinetics from dosage forms of arbitrary size and shape. For instance, dexamethasone release was theoretically predicted from cylindrical extrudates based on a selection of different silicone types. Interestingly, these predictions could be confirmed by independent experiments. Hence, this type of quantitative analysis can replace time-consuming and cost-intensive series of trial-and-error experiments during product optimization. This is particularly helpful, if long-term drug release (e.g., during several weeks, months or years) is targeted.
Collapse
|