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Herndon A, Chandran K, Davis DP. Selective Use of Positive-Pressure Ventilation for Preoxygenation During Air Medical Rapid Sequence Intubation. J Emerg Med 2024:S0736-4679(24)00211-7. [PMID: 39353790 DOI: 10.1016/j.jemermed.2024.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/05/2024] [Accepted: 06/08/2024] [Indexed: 10/04/2024]
Abstract
BACKGROUND Preoxygenation is critical to safe performance of rapid sequence intubation (RSI). The use of positive-pressure ventilation (PPV) has been advocated during preoxygenation but may increase the risk of aspiration. OBJECTIVE To explore the risk-benefit analysis of using PPV during air medical RSI. METHODS We performed a retrospective analysis of the Air Methods Airway Registry using patient data from over 175 bases across the U.S. over a 5-year period. Patients were separated into normoxemic (SpO2 ≥93%) and hypoxemic (SpO2 <93%) and compared in regard to demographics, clinical data, and use of PPV. Primary outcomes were first-attempt intubation success (FAS) and FAS without desaturation (FASWD). Chi-square, t-test, and logistical regression were used to analyze the data. RESULTS There were 9778 patients who underwent intubations during the study period. FAS was 92% (8966 patients). FASWD was 90% (8775 patients). Mean SpO2 was 94.9%. There were 42% (4118 patients) of patients who received PPV prior to intubation and 1% (94) aspirated during RSI. Multivariate logistical regression showed an association between use of PPV and reduced intubation success for normoxemic patients but improved intubation success for hypoxemic patients. The use of PPV was associated with higher risk of aspiration events (p = 0.007). CONCLUSION The use of PPV during preoxygenation prior to RSI appears beneficial for hypoxemic but not normoxemic patients due to lower intubation success and increased aspiration risk with PPV. This data supports selective use of PPV prior to the initial intubation attempt in patients undergoing RSI.
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Affiliation(s)
| | - Kira Chandran
- Georgetown School of Medicine, Washington, District of Columbia
| | - Daniel P Davis
- Logan Health, Division of EMS, Kalispell, Montana; Air Methods Corporation, Greenwood Village, Colorado.
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Technology-enhanced trauma training in low-resource settings: A scoping review and feasibility analysis of educational technologies. J Pediatr Surg 2023; 58:955-963. [PMID: 36828675 DOI: 10.1016/j.jpedsurg.2023.01.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/21/2023]
Abstract
BACKGROUND Lack of training contributes to the burden of trauma-related mortality and morbidity in low- and lower-middle-income countries (LMICs). Educational technologies present a unique opportunity to enhance the quality of trauma training. Therefore, this study reviews current technologies used in trauma courses and evaluates their feasibility for LMICs. METHODS We conducted a scoping review evaluating the learning outcomes of technology-enhanced training in general trauma assessment, team skills or any procedures covered in the 2020 Advanced Trauma Life Support® program. Based on the Technology-Enhanced Learning criteria, we created and applied a feasibility analysis tool to evaluate the technologies for use in LMICs. RESULTS We screened 6471 articles and included 64. Thirty-four (45%) articles explored training in general trauma assessment, 28 (37%) in team skills, and 24 (32%) in procedures. The most common technologies were high-fidelity mannequins (60%), video-assisted debriefing (19%), and low-fidelity mannequins (13%). Despite their effectiveness, high-fidelity mannequins ranked poorly in production, maintenance, cost, and reusability categories, therefore being poorly suited for LMICs. Virtual simulation and digital courses had the best feasibility scores, but still represented a minority of articles in our review. CONCLUSION To our knowledge, this is the first study to perform a feasibility analysis of trauma training technologies in the LMIC context. We identified that the majority of trauma courses in the literature use technologies which are less suitable for LMICs. Given the urgent need for pediatric trauma training, educators must use technologies that optimize learning outcomes and remain feasible for low-resource settings. LEVEL OF EVIDENCE IV.
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Risk factors for inadequate sedation after endotracheal intubation in the pediatric emergency department. Am J Emerg Med 2022; 56:15-20. [DOI: 10.1016/j.ajem.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/23/2022] [Accepted: 03/04/2022] [Indexed: 11/23/2022] Open
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Vithalani V, Sondheim S, Cornelius A, Gonzales J, Mercer MP, Burton B, Redlener M. Quality Management of Prehospital Airway Programs: An NAEMSP Position Statement and Resource Document. PREHOSP EMERG CARE 2022; 26:14-22. [PMID: 35001828 DOI: 10.1080/10903127.2021.1989530] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Prehospital airway management encompasses a multitude of complex decision-making processes, techniques, and interventions. Quality management (encompassing quality assurance and quality improvement activities) in EMS is dynamic, evidence-based, and most of all, patient-centric. Long a mainstay of the EMS clinician skillset, airway management deserves specific focus and attention and dedicated quality management processes to ensure the delivery of high-quality clinical care.It is the position of NAEMSP that:All EMS agencies should dedicate sufficient resources to patient-centric, comprehensive prehospital airway quality management program. These quality management programs should consist of prospective, concurrent, and retrospective activities. Quality management programs should be developed and operated with the close involvement of the medical director.Quality improvement and quality assurance efforts should operate in an educational, non-disciplinary, non-punitive, evidence-based medicine culture focused on patient safety. The highest quality of care is only achieved when the quality management program rewards those who identify and seek to prevent errors before they occur.Information evaluated in prehospital airway quality management programs should include both subjective and objective data elements with uniform reporting and operational definitions.EMS systems should regularly measure and report process, outcome, and balancing airway management measures.Quality management activities require large-scale bidirectional information sharing between EMS agencies and receiving facilities. Hospital outcome information should be shared with agencies and the involved EMS clinicians.Findings from quality management programs should be used to guide and develop initial education and continued training.Quality improvement programs must continually undergo evaluation and assessment to identify strengths and shortcomings with a focus on continuous improvement.
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Mandt M, Harris M, Lyng J, Moore B, Gross T, Gausche-Hill M, Donofrio-Odmann JJ. Quality Management of Prehospital Pediatric Respiratory Distress and Airway Programs: An NAEMSP Position Statement and Resource Document. PREHOSP EMERG CARE 2022; 26:111-117. [PMID: 35001832 DOI: 10.1080/10903127.2021.1986184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The unique challenges of pediatric respiratory and airway emergencies require the development and maintenance of a prehospital quality management program that includes pediatric-focused medical oversight and clinical care expertise, data collection, operational considerations, focused education, and clinician competency evaluation.NAEMSP recommends:Medical director oversight must include a focus on pediatric airway and respiratory management and integrate pediatric-specific elements in guideline development, competency assessment, and skills maintenance efforts.EMS agencies are encouraged to collaborate with medical professionals who have expertise in pediatric emergency care to provide support for quality management initiatives in pediatric respiratory distress and airway management.EMS agencies should define quality indicators for pediatric-specific elements in respiratory distress and airway management and benchmark performance based on regional and national standards.EMS agencies should implement both quantitative (objective) and qualitative (subjective) measures of performance to assess competency in pediatric respiratory distress and airway management.EMS agencies choosing to incorporate pediatric endotracheal intubation or supraglottic airway insertion must use pediatric-specific quality management benchmarks and perform focused review of advanced airway management.
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Sustained Improvement in the Performance of Rapid Sequence Intubation Five Years after a Quality Improvement Initiative. Pediatr Qual Saf 2021; 6:e385. [PMID: 34963998 PMCID: PMC8702256 DOI: 10.1097/pq9.0000000000000385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 09/18/2021] [Indexed: 11/26/2022] Open
Abstract
Supplemental Digital Content is available in the text. Many quality improvement interventions do not lead to sustained improvement, and the sustainability of healthcare interventions remains understudied. We conducted a time-series analysis to determine whether improvements in the safety of rapid sequence intubation (RSI) in our academic pediatric emergency department were sustained 5 years after a quality improvement initiative.
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Botha JC, Lourens A, Stassen W. Rapid sequence intubation: a survey of current practice in the South African pre-hospital setting. Int J Emerg Med 2021; 14:45. [PMID: 34404352 PMCID: PMC8369626 DOI: 10.1186/s12245-021-00368-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/27/2021] [Indexed: 11/24/2022] Open
Abstract
Background Rapid sequence intubation (RSI) is an advanced airway skill commonly performed in the pre-hospital setting globally. In South Africa, pre-hospital RSI was first approved for non-physician providers by the Health Professions Council of South Africa in 2009 and introduced as part of the scope of practice of degree qualified Emergency Care Practitioners (ECPs) only. The research study aimed to investigate and describe, based on the components of the minimum standards of pre-hospital RSI in South Africa, specific areas of interest related to current pre-hospital RSI practice. Methods An online descriptive cross-sectional survey was conducted amongst operational ECPs in the pre-hospital setting of South Africa, using convenience and snowball sampling strategies. Results A total of 87 participants agreed to partake. Eleven (12.6%) incomplete survey responses were excluded while 76 (87.4%) were included in the data analysis. The survey response rate could not be calculated. Most participants were operational in Gauteng (n = 27, 35.5%) and the Western Cape (n = 25, 32.9%). Overall participants reported that their education and training were perceived as being of good quality. The majority of participants (n = 69, 90.8%) did not participate in an internship programme before commencing duties as an independent practitioner. Most RSI and post-intubation equipment were reported to be available; however, our results found that introducer stylets and/or bougies and end-tidal carbon dioxide devices are not available to some participants. Only 50 (65.8%) participants reported the existence of a clinical governance system within their organisation. Furthermore, our results indicate a lack of clinical feedback, deficiency of an RSI database, infrequent clinical review meetings and a shortage of formal consultation frameworks. Conclusion The practice of safe and effective pre-hospital RSI, performed by non-physician providers or ECPs, relies on comprehensive implementation and adherence to all the components of the minimum standards. Although there is largely an apparent alignment with the minimum standards, recurrent revision of practice needs to occur to ensure alignment with recommendations. Additionally, some areas may benefit from further research to improve current practice. Supplementary Information The online version contains supplementary material available at 10.1186/s12245-021-00368-3.
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Affiliation(s)
- Johanna Catharina Botha
- Division of Emergency Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Andrit Lourens
- Division of Emergency Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,School of Nursing, Midwifery and Health, Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Willem Stassen
- Division of Emergency Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Nicol T, Gil-Jardiné C, Jabre P, Adnet F, Ecollan P, Guihard B, Ferdynus C, Combes X. Incidence, Complications, and Factors Associated with Out-of-Hospital First Attempt Intubation Failure in Adult Patients: A Secondary Analysis of the CURASMUR Trial Data. PREHOSP EMERG CARE 2021; 26:280-285. [PMID: 33595420 DOI: 10.1080/10903127.2021.1891357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Objectives: The objectives of this study were to evaluate first attempt intubation failure rate, its associated factors, and its related complications in out-of-hospital emergency setting, when emergency physicians perform standardized airway management using rapid sequence intubation in adult patients. Material and methods: The present study was a substudy of the Succinylcholine versus Rocuronium for out-of-hospital Emergency Intubation (CURASMUR) Trial, which compared Succinylcholine and Rocuronium used for Rapid sequence intubation. First attempt Intubation failure rate and early intubation related complications were recorded. We used multivariable logistic regression analysis to determine first intubation failure associated factors. Results: A total of 1230 patients were included with mean age of 55.9 +/- 19 years. First attempt intubation failure was recorded in 285 (23.2%) patients. The occurrence of a first attempt intubation failure was independently associated with history of ear, nose, and throat neoplasia (OR 2.20, CI 95% 1.06-4.60). Early intubation related complications were more frequent in case of first attempt intubation failure: 80 of 285 (28.4%) in patients with first attempt intubation failure and 185 of 945 (19.6%) in patients with successful first attempt intubation [OR 1.44; CI 95%, 1.11-1.87]. Conclusion: Based on a large multicenter study on out-of-hospital tracheal intubation of adult patients, we found that first attempt intubation failure rate was high and that history of ear, nose, and throat (ENT) neoplasia was an independent associated factor. Failure in first intubation attempt was associated with significantly more intubation related complications.
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Shaw MR, Lindsay D, Figueroa A. Beyond Tools: Continuous High-Fidelity Training at the Center of Successful First-Pass Intubation in Ground Emergency Medical Services. Air Med J 2020; 39:364-368. [PMID: 33012473 DOI: 10.1016/j.amj.2020.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/01/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Increased emphasis on the use of video laryngoscopy in emergency medical services has potentially caused providers to forfeit the skills required to perform direct laryngoscopy. The purpose of this study was to determine if the introduction of a continuous high-fidelity training program improves first-pass intubation success in a non-rapid sequence induction ground-based emergency medical services agency with an established video laryngoscopy program. METHODS This is a retrospective analysis of quality improvement data of advanced airway management performed by an ambulance service between 2012 and 2019. A mandatory biannual high-fidelity simulation training curriculum was introduced at the beginning of 2017. RESULTS A total of 459 patients underwent intubation attempts during the 7-year study period. First-pass intubation success improved from 57.6% to 81.4%, an improvement of 23.8% (95% confidence interval [CI], 15.4-31.5; P < .001), and overall intubation success improved from 77% to 91%, an improvement of 14.1% (95% CI, 7.3-20.3; P < .001). The average number of intubation attempts per patient decreased by 0.19 (95% CI, 0.09-0.29; P < .0003). The mean time of arrival to intubation time increased by 2.21 minutes (95% CI, 0.84-3.58; P = .0016). CONCLUSION Implementation of a high-fidelity airway training program is associated with improvements in overall endotracheal intubation and first-pass endotracheal intubation success rates in all adult patient categories.
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Affiliation(s)
| | - Daniel Lindsay
- Department of Public Health and Tropical Medicine, James Cook University, Townsville, Australia
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Braude D, Dixon D, Torres M, Martinez JP, O'Brien S, Bajema T. Brief Research Report: Prehospital Rapid Sequence Airway. PREHOSP EMERG CARE 2020; 25:583-587. [PMID: 32628568 DOI: 10.1080/10903127.2020.1792015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Rapid Sequence Airway (RSA) describes the administration of an induction agent and paralytic followed by the intended primary placement of an extraglottic airway device rather than an endotracheal tube. The purpose of this study was to determine the success rates for prehospital RSA. The secondary goal was to determine aspiration rates among patients managed with RSA. METHODS Adult and pediatric prehospital RSA cases between 2005 and 2017 reported to an airway quality assurance registry from one ground and one air agency were reviewed. Success was defined as the ability to adequately ventilate patients after extraglottic device placement. Aspiration was defined as radiologic evidence (chest x-ray or CT scan) within 48 hours of hospital presentation. RESULTS 68 patients underwent RSA with a King LTS-D (n = 24), LMA-Supreme (n = 28), Combitube (n = 2), LMA-Unique (n = 8) and iGel (n = 6). Age ranged from 1 year to 73 years with 10 patients less than 18. RSA was successful in 64 (94%) cases; 56 (88%) were successful on first pass and 63 (98%) within 2 attempts. The RSA procedure occurred in an aircraft in 14 (21%) of cases and 71% of patients were in cervical precautions. Duration of EGD insertion prior to hospital arrival ranged from 5 to 102 minutes with an average of 34.5 minutes. Aspiration data was available for 46 patients of whom 4 (8.7%) were found to have evidence of aspiration. CONCLUSION Overall and first pass RSA success rates were high and aspiration rates were low in this quality assurance registry despite predictors of airway difficulty. RSA may be a reasonable alternative to RSI for prehospital airway management that merits further research.
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Sakles JC, Augustinovich CC, Patanwala AE, Pacheco GS, Mosier JM. Improvement in the Safety of Rapid Sequence Intubation in the Emergency Department with the Use of an Airway Continuous Quality Improvement Program. West J Emerg Med 2019; 20:610-618. [PMID: 31316700 PMCID: PMC6625676 DOI: 10.5811/westjem.2019.4.42343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/06/2019] [Accepted: 04/20/2019] [Indexed: 01/06/2023] Open
Abstract
Introduction Airway management in the critically ill is associated with a high prevalence of failed first attempts and adverse events which negatively impacts patient care. The purpose of this investigation is to describe an airway continuous quality improvement (CQI) program and its effect on the safety of rapid sequence intubation (RSI) in the emergency department (ED) over a 10-year period. Methods An airway CQI program with an ongoing airway registry was initiated in our ED on July 1, 2007 (Academic Year 1) and continued through June 30, 2017 (Academic Year 10). Data were prospectively collected on all patients intubated in the ED during this period using a structured airway data collection form. Key data points included method of intubation, drugs and devices used for intubation, operator specialty and level of training, number of intubation attempts, and adverse events. Adult patients who underwent RSI in the ED with an initial intubation attempt by emergency medicine (EM) resident were included in the analysis. The primary outcome was first pass success which was defined as successful tracheal intubation with a single laryngoscope insertion. The secondary outcome was the prevalence of adverse events associated with intubation. Educational and clinical interventions were introduced throughout the study period with the goal of optimizing these outcomes. Data were analyzed by academic year and are reported descriptively with 95% confidence intervals (CI) of the difference of means. Results EM residents performed RSI on 342 adult patients during Academic Year 1 and on 445 adult patients during Academic Year 10. Over the 10-year study period, first pass success increased from 73.1% to 92.4% (difference = 19.3%, 95% CI 14.0% to 24.6%). The percentage of patients who experienced an adverse event associated with intubation decreased from 22.5% to 14.4% (difference = −7.9%, 95% CI −13.4% to −2.4%). The percentage of patients with first pass success without an adverse event increased from 64.0% to 80.9% (difference = 16.9%, 95% CI 10.6% to 23.1%). Conclusion The use of an airway CQI program with an ongoing airway registry resulted in a substantial improvement in the overall safety of RSI in the ED as evidenced by an increase in first pass success and a decrease in adverse events.
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Affiliation(s)
- John C Sakles
- University of Arizona College of Medicine, Department of Emergency Medicine, Tucson, Arizona
| | | | - Asad E Patanwala
- University of Sydney, Faculty of Medicine and Health, Sydney, Australia
| | - Garrett S Pacheco
- University of Arizona College of Medicine, Department of Emergency Medicine, Tucson, Arizona
| | - Jarrod M Mosier
- University of Arizona College of Medicine, Department of Emergency Medicine, Tucson, Arizona.,University of Arizona College of Medicine, Department of Medicine, Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Tucson, Arizona
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Nausheen F, Niknafs NP, MacLean DJ, Olvera DJ, Wolfe AC, Pennington TW, Davis DP. The HEAVEN criteria predict laryngoscopic view and intubation success for both direct and video laryngoscopy: a cohort analysis. Scand J Trauma Resusc Emerg Med 2019; 27:50. [PMID: 31018857 PMCID: PMC6480652 DOI: 10.1186/s13049-019-0614-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 03/12/2019] [Indexed: 11/29/2022] Open
Abstract
Background Existing difficult airway prediction tools are not practical for emergency intubation and do not incorporate physiological data. The HEAVEN criteria (Hypoxaemia, Extremes of size, Anatomic challenges, Vomit/blood/fluid, Exsanguination, Neck mobility) may be more relevant for emergency rapid sequence intubation (RSI). Methods A retrospective analysis included air medical RSI patients. A checklist was used to assess HEAVEN criteria prior to RSI, and Cormack-Lehane (CL) laryngoscopic view was recorded for the first intubation attempt. The incidence of a difficult (CL III/IV) laryngoscopic view as well as failure to intubate on first attempt with and without oxygen desaturation were determined for each of the HEAVEN criteria and total number of HEAVEN criteria. In addition, the association between HEAVEN criteria and both laryngoscopic view and intubation performance were quantified using multivariate logistic regression for direct laryngoscopy (DL) and video laryngoscopy (VL) configured with a Macintosh #4 non-hyperangulated blade. Results A total of 5137 RSI patients over 24 months were included. Overall intubation success was 97%. A CL III/IV laryngoscopic view was reported in 25% of DL attempts and 15% of VL attempts. Each of the HEAVEN criteria and total number of HEAVEN criteria were associated with both CL III/IV laryngoscopic view and failure to intubate on the first attempt with and without oxygen desaturation for both DL and VL. These associations persisted after adjustment for multiple co-variables including the other HEAVEN criteria. Conclusion The HEAVEN criteria may be useful to predict laryngoscopic view and intubation performance for DL and VL during emergency RSI. Electronic supplementary material The online version of this article (10.1186/s13049-019-0614-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fauzia Nausheen
- Department of Medical Education, California University of Science & Medicine, School of Medicine, 217 E Club Center Dr Suite A, San Bernardino, CA, 92408, USA.
| | - Nichole P Niknafs
- Department of Emergency Medicine, Arrowhead Regional Medical Center, Colton, USA
| | - Derek J MacLean
- Department of Emergency Medicine, Arrowhead Regional Medical Center, Colton, USA
| | - David J Olvera
- Air Methods Corporation, Greenwood Village, Colorado, USA
| | - Allen C Wolfe
- Air Methods Corporation, Greenwood Village, Colorado, USA
| | - Troy W Pennington
- Department of Emergency Medicine, Arrowhead Regional Medical Center, Colton, USA.,Air Methods Corporation, Greenwood Village, Colorado, USA
| | - Daniel P Davis
- Department of Medical Education, California University of Science & Medicine, School of Medicine, 217 E Club Center Dr Suite A, San Bernardino, CA, 92408, USA.,Department of Emergency Medicine, Arrowhead Regional Medical Center, Colton, USA.,Air Methods Corporation, Greenwood Village, Colorado, USA
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