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Wayne MT, Valley TS, Arenberg DA, De Cardenas J, Prescott HC. Temporal Trends and Variation in Bronchoscopy Use for Acute Respiratory Failure in the United States. Chest 2023; 163:128-138. [PMID: 36007595 PMCID: PMC9859725 DOI: 10.1016/j.chest.2022.08.2210] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/26/2022] [Accepted: 08/10/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND National data on bronchoscopy for the evaluation of acute respiratory failure are lacking, and the limited available data suggest wide variation in use. RESEARCH QUESTION How commonly is bronchoscopy performed among hospitalizations with acute respiratory failure? How has use changed over time and across hospitals? STUDY DESIGN AND METHODS This was an observational cohort study of adult hospitalizations (2012-2018) treated with invasive mechanical ventilation (IMV) using the National Inpatient Sample, which represents 97% of all hospitalizations in the United States. We measured the proportion of hospitalizations treated with IMV who underwent bronchoscopy and assessed trends in bronchoscopy use over time. Multilevel linear regression models were used to quantify hospital-level variation, adjusting for differences in patient and hospital characteristics. RESULTS We identified 6,101,070 IMV-treated hospitalizations (2012-2018), of whom 609,405 underwent bronchoscopy; among hospitalizations receiving bronchoscopy, mean age was 61 years, 41.8% were women, and in-hospital mortality was 30.8%. The percentage of IMV-treated hospitalizations receiving bronchoscopy increased from 9.5% (95% CI, 9.1%-9.9%) in 2012 to 10.8% (95% CI, 10.4%-11.2%) in 2018 (P < .001 for difference). In 2018, bronchoscopy use varied from 0% to 57.1% among 1,787 hospitals, and in multilevel models adjusted for patient and hospital characteristics, 16.0% of the variation was explained at the hospital level. The median OR was 2.13 (95% CI, 2.05-2.21), indicating 113% increased odds of receiving bronchoscopy if moving from a lower-use to a higher-use hospital. INTERPRETATION Bronchoscopy use among hospitalizations treated with IMV has increased over time. The large variation in use of bronchoscopy across hospitals suggests potentially unwarranted practice variation and need for further studies to clarify which patients benefit from bronchoscopy.
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Affiliation(s)
- Max T Wayne
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ann Arbor, MI.
| | - Thomas S Valley
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ann Arbor, MI; VA Center for Clinical Management Research, Ann Arbor, MI
| | - Douglas A Arenberg
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ann Arbor, MI
| | - Jose De Cardenas
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ann Arbor, MI; Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Hallie C Prescott
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ann Arbor, MI; VA Center for Clinical Management Research, Ann Arbor, MI
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2
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Ho E, Wagh A, Hogarth K, Murgu S. Single-Use and Reusable Flexible Bronchoscopes in Pulmonary and Critical Care Medicine. Diagnostics (Basel) 2022; 12:174. [PMID: 35054345 PMCID: PMC8775174 DOI: 10.3390/diagnostics12010174] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 02/04/2023] Open
Abstract
Flexible bronchoscopy plays a critical role in both diagnostic and therapeutic management of a variety of pulmonary disorders in the bronchoscopy suite and the intensive care unit. In the set-ting of the ongoing viral pandemic, single-use flexible bronchoscopes (SUFB) have garnered attention as various professional pulmonary societies have released guidelines regarding uses for SUFB given the concern for risk of viral transmission when using reusable flexible bronchoscopes (RFB). In addition to offering sterility, SUFBs are portable, easily accessible, and may be more cost-effective than RFB when considering the potential costs of treating bronchoscopy-related infections. Furthermore, since SUFBs are one time use, they do not require reprocessing after use, and therefore may translate to reduced cleaning and storage costs. Despite these advantages, RFBs are still routinely used to perform advanced diagnostic and therapeutic bronchoscopic procedures given the need for optimal maneuverability, handling, angle of deflection, image quality, and larger channel size for passing of ancillary instruments. Here, we review the published evidence on the applications of single-use and reusable bronchoscopes in bronchoscopy suites and intensive care units. Specifically, we will discuss the advantages and disadvantages of these devices as pertinent to fundamental, advanced, and therapeutic bronchoscopic interventions.
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Affiliation(s)
- Elliot Ho
- Section of Pulmonary and Critical Care Medicine/Interventional Pulmonology, Department of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Ajay Wagh
- Section of Pulmonary and Critical Care Medicine/Interventional Pulmonology, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA; (A.W.); (K.H.); (S.M.)
| | - Kyle Hogarth
- Section of Pulmonary and Critical Care Medicine/Interventional Pulmonology, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA; (A.W.); (K.H.); (S.M.)
| | - Septimiu Murgu
- Section of Pulmonary and Critical Care Medicine/Interventional Pulmonology, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA; (A.W.); (K.H.); (S.M.)
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3
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Bronchoscopist's perception of the quality of the single-use bronchoscope (Ambu aScope4™) in selected bronchoscopies: a multicenter study in 21 Spanish pulmonology services. Respir Res 2020; 21:320. [PMID: 33267892 PMCID: PMC7709094 DOI: 10.1186/s12931-020-01576-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/18/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The disposable bronchoscope is an excellent alternative to face the problem of SARS-CoV-2 and other cross infections, but the bronchoscopist's perception of its quality has not been evaluated. METHODS To evaluate the quality of the Ambu-aScope4 disposable bronchoscope, we carried out a cross-sectional study in 21 Spanish pulmonology services. We use a standardized questionnaire completed by the bronchoscopists at the end of each bronchoscopy. The variables were described with absolute and relative frequencies, measures of central tendency and dispersion depending on their nature. The existence of learning curves was evaluated by CUSUM analysis. RESULTS The most frequent indications in 300 included bronchoscopies was bronchial aspiration in 69.3% and the median duration of these was 9.1 min. The route of entry was nasal in 47.2% and oral in 34.1%. The average score for ease of use, image, and aspiration quality was 80/100. All the planned techniques were performed in 94.9% and the bronchoscopist was satisfied in 96.6% of the bronchoscopies. They highlighted the portability and immediacy of the aScope4TM to start the procedure in 99.3%, the possibility of taking and storing images in 99.3%. The CUSUM analysis showed average scores > 70/100 from the first procedure and from the 9th procedure more than 80% of the scores exceeded the 80/100 score. CONCLUSIONS The aScope4™ scored well for ease of use, imaging, and aspiration. We found a learning curve with excellent scores from the 9th procedure. Bronchoscopists highlighted its portability, immediacy of use and the possibility of taking and storing images.
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4
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Garner JL, Garner SD, Hardie RJ, Molyneaux PL, Singh S, Kemp SV, Shah PL. Evaluation of a re-useable bronchoscopy biosimulator with ventilated lungs. ERJ Open Res 2019; 5:00035-2019. [PMID: 31011572 PMCID: PMC6469070 DOI: 10.1183/23120541.00035-2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/11/2019] [Indexed: 12/04/2022] Open
Abstract
Background Restrictions on respiratory trainee time and access to procedures reduce the opportunities to acquire necessary skills in bronchoscopy. Simulation, not subject to such impediments, is a useful supplementary aid to teaching bronchoscopic techniques in a safe environment but there is a limited choice of simulators that are sufficiently realistic and not prohibitively expensive. This study evaluated a low-cost device that simulates an intubated and ventilated patient, employing re-useable, inflatable, BioFlex-preserved, porcine lungs. Methods 26 bronchoscopists, trainee and experienced, after using the bronchoscopy biosimulator, completed a questionnaire using a five-point Likert scale comparing its performance with that of the computerised CAE AccuTouch. Results Participants were largely positive about their experience (mean score of 4.76). The bronchoscopy biosimulator was found to be realistic (mean score 4.64), easy to use (mean score 4.88), and helpful in learning to perform a variety of diagnostic and therapeutic procedures (mean score 4.85). Importantly, the bronchoscopy biosimulator compared favourably to the computer simulator (mean score 4.84). Conclusions These data support the concept of the bronchoscopy biosimulator as an acceptable model with which to supplement the experience of bronchoscopic procedures. A re-useable bronchoscopy biosimulator with ventilated lungs hones skills in an environment that is realistic, is free of patient safety issues and time constraints, and provides a complementary training tool to commercially available simulation modelshttp://ow.ly/AkWM30octSd
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Affiliation(s)
- Justin L Garner
- Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | | | | | - Philip L Molyneaux
- Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Suveer Singh
- Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Pallav L Shah
- Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
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Experience With the Use of Single-Use Disposable Bronchoscope in the ICU in a Tertiary Referral Center of Singapore. J Bronchology Interv Pulmonol 2017; 24:136-143. [PMID: 28323727 DOI: 10.1097/lbr.0000000000000335] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Flexible bronchoscopy is performed frequently in intensive care units (ICUs) for various indications using the reusable conventional bronchoscope (CB). Recently, "single-use disposable bronchoscope" (SB) was introduced into the health care industry. The purpose of this study was to compare the utility of SB with CB in ICU. METHODS A retrospective review of medical records of patients undergoing flexible bronchoscopy in the ICUs in the year 2015. RESULTS Ninety-three patients undergoing flexible bronchoscopy in the ICU were studied. Eighty-three bronchoscopies were performed using SB in 71 patients, and 24 using CB in 22 patients. The most common indications for using the SB were percutaneous tracheostomy [n=37 (44.6%)] in neuro-ICU, followed by collecting specimens for microbiological evaluation [n=20 (24.1%)] in the medical ICU. Airway inspection [8 (9.6%)], bronchial toilet [8 (9.6%)], hemoptysis [5 (6%)], and intubation [3 (3.6%)] were other indications for which SB was used. Microbiological yield of SB was 70% (14/20) versus 70% (7/10) for CB (P=1.0). The median interval between identification of the need-to-start of the procedure was shorter with SB (10 min) versus CB (66 min, P=0.01), whereas the cost was similar, SGD450 versus SGD472, respectively. In addition, less (3 personnel) were needed to perform bronchoscopy with SB versus 5 with CB with additional resource sparing effect in terms of nursing personnel having to wheel the CB equipment to ICU. CONCLUSIONS SB is equivalent in performance to CB in ICU. In addition, the SB may confer clinical, economic, and logistical advantages over the CB.
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6
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Perbet S, Blanquet M, Mourgues C, Delmas J, Bertran S, Longère B, Boïko-Alaux V, Chennell P, Bazin JE, Constantin JM. Cost analysis of single-use (Ambu ® aScope™) and reusable bronchoscopes in the ICU. Ann Intensive Care 2017; 7:3. [PMID: 28050896 PMCID: PMC5209315 DOI: 10.1186/s13613-016-0228-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 12/20/2016] [Indexed: 11/25/2022] Open
Abstract
Background Flexible optical bronchoscopes are essential for management of airways in ICU, but the conventional reusable flexible scopes have three major drawbacks: high cost of repairs, need for decontamination, and possible transmission of infectious agents. The main objective of this study was to measure the cost of bronchoalveolar lavage (BAL) and percutaneous tracheostomy (PT) using reusable bronchoscopes and single-use bronchoscopes in an ICU of an university hospital. The secondary objective was to compare the satisfaction of healthcare professionals with reusable and single-use bronchoscopes. Methods The study was performed between August 2009 and July 2014 in a 16-bed ICU. All BAL and PT procedures were performed by experienced healthcare professionals. Cost analysis was performed considering ICU and hospital organization. Healthcare professional satisfaction with single-use and reusable scopes was determined based on eight factors. Sensitivity analysis was performed by applying discount rates (0, 3, and 5%) and by simulation of six situations based on different assumptions. Results At a discount rate of 3%, the costs per BAL for the two reusable scopes were 188.86€ (scope 1) and 185.94€ (scope 2), and the costs per PT for the reusable scope 1 and scope 2 and single-use scopes were 1613.84€, 410.24€, and 204.49€, respectively. The cost per procedure for the reusable scopes depended on the number of procedures performed, maintenance costs, and decontamination costs. Healthcare professionals were more satisfied with the third-generation single-use Ambu® aScope™. Conclusions The cost per procedure for the single-use scope was not superior to that for reusable scopes. The choice of single-use or reusable bronchoscopes in an ICU should consider the frequency of procedures and the number of bronchoscopes needed. Electronic supplementary material The online version of this article (doi:10.1186/s13613-016-0228-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- S Perbet
- Réanimation Adultes & USC, Pôle de Médecine Péri-Opératoire, CHU Clermont-Ferrand, Clermont-Ferrand, France. .,R2D2, EA 7281, Faculté de Médecine, Université d'Auvergne, Clermont-Ferrand, France. .,Réanimation Médico-Chirugicale, Pôle de Médecine Péri-Opératoire, Hôpital Gabriel-Montpied, CHU Clermont-Ferrand, 58 Rue Montalembert, 63000, Clermont-Ferrand Cedex, France.
| | - M Blanquet
- Service de Santé Publique, CHU Clermont-Ferrand, 7, Place Henri-Dunant, 63058, Clermont-Ferrand Cedex 1, France.,Clermont Université, Université d'Auvergne, EA 4681, PEPRADE (Périnatalité, grossesse, Environnement, PRAtiques médicales et DEveloppement), Clermont-Ferrand, France
| | - C Mourgues
- Service de Santé Publique, CHU Clermont-Ferrand, 7, Place Henri-Dunant, 63058, Clermont-Ferrand Cedex 1, France.,Clermont Université, Université d'Auvergne, EA 4681, PEPRADE (Périnatalité, grossesse, Environnement, PRAtiques médicales et DEveloppement), Clermont-Ferrand, France
| | - J Delmas
- Réanimation Adultes & USC, Pôle de Médecine Péri-Opératoire, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - S Bertran
- Réanimation Adultes & USC, Pôle de Médecine Péri-Opératoire, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - B Longère
- Réanimation Adultes & USC, Pôle de Médecine Péri-Opératoire, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - V Boïko-Alaux
- Pharmacie centrale, Centrale d'Approvisionnement de Matériel Stérile, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - P Chennell
- Pharmacie centrale, Centrale d'Approvisionnement de Matériel Stérile, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - J-E Bazin
- Réanimation Adultes & USC, Pôle de Médecine Péri-Opératoire, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - J-M Constantin
- Réanimation Adultes & USC, Pôle de Médecine Péri-Opératoire, CHU Clermont-Ferrand, Clermont-Ferrand, France.,R2D2, EA 7281, Faculté de Médecine, Université d'Auvergne, Clermont-Ferrand, France
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7
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Reena. Use of Ambu® aScope™ 3 in difficult airway management in giant lipoma neck. EGYPTIAN JOURNAL OF ANAESTHESIA 2017. [DOI: 10.1016/j.egja.2016.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Reena
- Heritage Institute of Medical Sciences, Varanasi, Uttar Pradesh, India
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8
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Fukada T, Tsuchiya Y, Iwakiri H, Ozaki M. Is the Ambu aScope 3 Slim single-use fiberscope equally efficient compared with a conventional bronchoscope for management of the difficult airway? J Clin Anesth 2016; 30:68-73. [DOI: 10.1016/j.jclinane.2015.12.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 12/16/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
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Randomised Controlled trial Comparing the Ambu® aScope™2 with a Conventional Fibreoptic Bronchoscope in Orotracheal Intubation of Anaesthetised Adult Patients. Anaesth Intensive Care 2015; 43:479-84. [DOI: 10.1177/0310057x1504300410] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fibreoptic intubation remains an essential skill for anaesthetists to master. In addition to the reusable fibrescope, an alternative disposable videoscope is available (aScope™2, Ambu®, Ballerup, Denmark). A total of 60 anaesthetised adult patients were randomised to either having orotracheal intubation using the aScope 2 or a Karl Storz fibrescope. Intubations were performed by experienced operators who were familiar with both devices. The primary outcome was the Global Rating Scale score. Secondary outcomes included intubation success, number of intubation attempts and intubation time. Other subjective outcomes including practicality, useability and image quality were also recorded. There was no significant difference in the Global Rating Scale score, intubation success or intubation time between the aScope 2 or Karl Storz fibrescope. Global Rating Scale scores were three and two in the aScope 2 and Karl Storz groups respectively ( P=0.14). All of the other subjective outcomes were similar between the two groups, except that operators found it easier to use the aScope 2 compared to the fibrescope. There was no significant difference in clinical performance between the aScope 2 and the Karl Storz fibreoptic bronchoscope. The aScope's practicality, disposability and recently improved version (aScope™3) potentially make it an acceptable alternative to the reusable fibrescope.
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Lenhardt R, Burkhart MT, Brock GN, Kanchi-Kandadai S, Sharma R, Akça O. Is Video Laryngoscope-Assisted Flexible Tracheoscope Intubation Feasible for Patients with Predicted Difficult Airway? A Prospective, Randomized Clinical Trial. Anesth Analg 2014; 118:1259-65. [DOI: 10.1213/ane.0000000000000220] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Mankikian J, Ehrmann S, Guilleminault L, Le Fol T, Barc C, Ferrandière M, Boulain T, Dequin PF, Guillon A. An evaluation of a new single-use flexible bronchoscope with a large suction channel: reliability of bronchoalveolar lavage in ventilated piglets and initial clinical experience. Anaesthesia 2014; 69:701-6. [PMID: 24773281 DOI: 10.1111/anae.12641] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2014] [Indexed: 11/27/2022]
Abstract
A single-use flexible bronchoscope with a large suction channel has become available recently and we have evaluated this innovative device. Firstly, bronchoalveolar lavage was performed and quantified in ventilated piglets. Next, the bronchoscope was evaluated in three intensive care units and a satisfaction questionnaire was carried out. Sixteen bronchoalveolar lavages were performed in piglets with a recovery rate of 83 (79-86 [72-89])% of the instilled volume. Quality and performance of all devices tested was identical. The medical satisfaction questionnaire was as follows: 'acceptable' to 'very good' for quality of aspiration, manoeuvrability and quality of vision; 'very good' to 'perfect' for setting up and insertion. This encouraging preliminary evaluation demonstrates the effectiveness of this new single-use device, which may obviate the need for disinfection procedures and, thereby, eradicate a potential vector of patient cross-contamination.
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Affiliation(s)
- J Mankikian
- CHRU de Tours, Service de Réanimation Polyvalente, Tours, France
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Utilisation d’un fibroscope à usage unique pour la formation sur labyrinthe à l’intubation sous fibroscope. ACTA ACUST UNITED AC 2014; 33:12-5. [DOI: 10.1016/j.annfar.2013.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 11/05/2013] [Indexed: 11/22/2022]
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KRISTENSEN MS, FREDENSBORG BB. The disposable Ambu aScope vs. a conventional flexible videoscope for awake intubation -- a randomised study. Acta Anaesthesiol Scand 2013; 57:888-95. [PMID: 23495767 DOI: 10.1111/aas.12094] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND A new disposable flexible videoscope, the Ambu® aScope, has several potential advantages compared with reusable devices, but it is a prerequisite for its widespread use that it functions sufficiently well in the management of patients in whom difficulty with airway management is anticipated and awake intubation is indicated. METHODS In a pilot study, 20 patients with normal airways were intubated with the aScope. Subsequently, 40 patients with predicted difficult tracheal intubation were randomly assigned to be intubated awake with either the aScope or the reusable Olympus BF videobronchoscope. RESULTS All patients were successfully intubated awake. The median total intubation time, including the administration of local anaesthesia, was 278 vs. 234 s in the aScope and Olympus groups, respectively (P = 0.03). In two cases in the aScope group, the image became blurred immediately after the first injection of lidocaine via the injection channel, and the time that it took to replace the scopes was included in the intubation times. CONCLUSION Both the disposable aScope and the reusable Olympus videoscope allowed safe awake intubation in our elective patients with severely difficult, but uncompromised, airways. The occasional need to employ a spare scope because of malfunctioning would make the disposable aScope less suitable in patients with acutely compromised airways.
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Affiliation(s)
- M. S. KRISTENSEN
- Department of Anaesthesia; Center of Head and Orthopaedics; Rigshospitalet; University Hospital of Copenhagen; Copenhagen; Denmark
| | - B. B. FREDENSBORG
- Department of Anaesthesia; Center of Head and Orthopaedics; Rigshospitalet; University Hospital of Copenhagen; Copenhagen; Denmark
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Krugel V, Bathory I, Frascarolo P, Schoettker P. Comparison of the single-use Ambu®aScope™ 2 vs the conventional fibrescope for tracheal intubation in patients with cervical spine immobilisation by a semirigid collar*. Anaesthesia 2012; 68:21-6. [DOI: 10.1111/anae.12044] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hodzovic I, Wilkes A. A reply. Anaesthesia 2011. [DOI: 10.1111/j.1365-2044.2011.06975_2.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hughes C, Rai M. Use of manikins in airway equipment development. Anaesthesia 2011; 66:1177-8; author reply 1178. [DOI: 10.1111/j.1365-2044.2011.06985_1.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Willcox J, Turner M. Comparison of Ambu aScope and Olympus re-usable fibrescope. Anaesthesia 2011; 66:1175-6; author reply 1176-7. [DOI: 10.1111/j.1365-2044.2011.06975_1.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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