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Gómez-Ríos MÁ, Sastre JA, Onrubia-Fuertes X, López T, Abad-Gurumeta A, Casans-Francés R, Gómez-Ríos D, Garzón JC, Martínez-Pons V, Casalderrey-Rivas M, Fernández-Vaquero MÁ, Martínez-Hurtado E, Martín-Larrauri R, Reviriego-Agudo L, Gutierrez-Couto U, García-Fernández J, Serrano-Moraza A, Rodríguez Martín LJ, Camacho Leis C, Espinosa Ramírez S, Fandiño Orgeira JM, Vázquez Lima MJ, Mayo-Yáñez M, Parente-Arias P, Sistiaga-Suárez JA, Bernal-Sprekelsen M, Charco-Mora P. Spanish Society of Anesthesiology, Reanimation and Pain Therapy (SEDAR), Spanish Society of Emergency and Emergency Medicine (SEMES) and Spanish Society of Otolaryngology, Head and Neck Surgery (SEORL-CCC) Guideline for difficult airway management. Part II. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2024; 71:207-247. [PMID: 38340790 DOI: 10.1016/j.redare.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 08/28/2023] [Indexed: 02/12/2024]
Abstract
The Airway Management section of the Spanish Society of Anesthesiology, Resuscitation, and Pain Therapy (SEDAR), the Spanish Society of Emergency Medicine (SEMES), and the Spanish Society of Otorhinolaryngology and Head and Neck Surgery (SEORL-CCC) present the Guide for the comprehensive management of difficult airway in adult patients. Its principles are focused on the human factors, cognitive processes for decision-making in critical situations, and optimization in the progression of strategies application to preserve adequate alveolar oxygenation in order to enhance safety and the quality of care. The document provides evidence-based recommendations, theoretical-educational tools, and implementation tools, mainly cognitive aids, applicable to airway management in the fields of anesthesiology, critical care, emergencies, and prehospital medicine. For this purpose, an extensive literature search was conducted following PRISMA-R guidelines and was analyzed using the GRADE methodology. Recommendations were formulated according to the GRADE methodology. Recommendations for sections with low-quality evidence were based on expert opinion through consensus reached via a Delphi questionnaire.
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Affiliation(s)
- M Á Gómez-Ríos
- Anesthesiology and Perioperative Medicine, Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain.
| | - J A Sastre
- Anesthesiology and Perioperative Medicine, Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | - X Onrubia-Fuertes
- Department of Anesthesiology, Hospital Universitary Dr Peset, Valencia, Spain
| | - T López
- Anesthesiology and Perioperative Medicine, Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | - A Abad-Gurumeta
- Department of Anesthesiology, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - R Casans-Francés
- Department of Anesthesiology, Hospital Universitario Infanta Elena, Valdemoro, Madrid, Spain
| | | | - J C Garzón
- Anesthesiology and Perioperative Medicine, Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | - V Martínez-Pons
- Department of Anesthesiology, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - M Casalderrey-Rivas
- Department of Anesthesiology. Complejo Hospitalario Universitario de Ourense, Ourense, Spain
| | - M Á Fernández-Vaquero
- Department of Anesthesiology, Hospital Clínica Universitaria de Navarra, Madrid, Spain
| | - E Martínez-Hurtado
- Department of Anesthesiology, Hospital Universitario Infanta Leonor, Madrid, Spain
| | | | - L Reviriego-Agudo
- Department of Anesthesiology, Hospital Clínico Universitario, Valencia, Spain
| | - U Gutierrez-Couto
- Biblioteca, Complejo Hospitalario Universitario de Ferrol (CHUF), Ferrol, A Coruña, Spain
| | - J García-Fernández
- Department of Anesthesiology, Hospital Universitario Puerta de Hierro-Majadahonda, Majadahonda, Madrid, Spain; President of the Spanish Society of Anesthesiology, Resuscitation and Pain Therapy (SEDAR), Spain
| | | | | | | | | | - J M Fandiño Orgeira
- Emergency Department, Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain
| | - M J Vázquez Lima
- Emergency Department, Hospital do Salnes, Vilagarcía de Arousa, Pontevedra, Spain; President of the Spanish Emergency Medicine Society (SEMES), Spain
| | - M Mayo-Yáñez
- Department of Otorhinolaryngology/Head Neck Surgery, Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - P Parente-Arias
- Department of Otorhinolaryngology/Head Neck Surgery, Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - J A Sistiaga-Suárez
- Department of Otorhinolaryngology, Hospital Universitario Donostia, Donostia, Gipuzkoa, Spain
| | - M Bernal-Sprekelsen
- Department of Otorhinolaryngology, Hospital Clínic Barcelona, University of Barcelona, Barcelona, Spain; President of the Spanish Society for Otorhinolaryngology Head & Neck Surgery (SEORL-CCC), Spain
| | - P Charco-Mora
- Department of Anesthesiology, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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Gómez-Ríos MÁ, Sastre JA, Onrubia-Fuertes X, López T, Abad-Gurumeta A, Casans-Francés R, Gómez-Ríos D, Garzón JC, Martínez-Pons V, Casalderrey-Rivas M, Fernández-Vaquero MÁ, Martínez-Hurtado E, Martín-Larrauri R, Reviriego-Agudo L, Gutierrez-Couto U, García-Fernández J, Serrano-Moraza A, Rodríguez Martín LJ, Camacho Leis C, Espinosa Ramírez S, Fandiño Orgeira JM, Vázquez Lima MJ, Mayo-Yáñez M, Parente-Arias P, Sistiaga-Suárez JA, Bernal-Sprekelsen M, Charco-Mora P. Spanish Society of Anesthesiology, Reanimation and Pain Therapy (SEDAR), Spanish Society of Emergency and Emergency Medicine (SEMES) and Spanish Society of Otolaryngology, Head and Neck Surgery (SEORL-CCC) Guideline for difficult airway management. Part I. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2024; 71:171-206. [PMID: 38340791 DOI: 10.1016/j.redare.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/28/2023] [Indexed: 02/12/2024]
Abstract
The Airway Management section of the Spanish Society of Anesthesiology, Resuscitation, and Pain Therapy (SEDAR), the Spanish Society of Emergency Medicine (SEMES), and the Spanish Society of Otorhinolaryngology and Head and Neck Surgery (SEORL-CCC) present the Guide for the comprehensive management of difficult airway in adult patients. Its principles are focused on the human factors, cognitive processes for decision-making in critical situations, and optimization in the progression of strategies application to preserve adequate alveolar oxygenation in order to enhance safety and the quality of care. The document provides evidence-based recommendations, theoretical-educational tools, and implementation tools, mainly cognitive aids, applicable to airway management in the fields of anesthesiology, critical care, emergencies, and prehospital medicine. For this purpose, an extensive literature search was conducted following PRISMA-R guidelines and was analyzed using the GRADE methodology. Recommendations were formulated according to the GRADE methodology. Recommendations for sections with low-quality evidence were based on expert opinion through consensus reached via a Delphi questionnaire.
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Affiliation(s)
- M Á Gómez-Ríos
- Anesthesiology and Perioperative Medicine. Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain.
| | - J A Sastre
- Anesthesiology and Perioperative Medicine. Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | - X Onrubia-Fuertes
- Department of Anesthesiology, Hospital Universitari Dr Peset, Valencia, Spain
| | - T López
- Anesthesiology and Perioperative Medicine. Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | - A Abad-Gurumeta
- Department of Anesthesiology, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - R Casans-Francés
- Department of Anesthesiology. Hospital Universitario Infanta Elena, Valdemoro, Madrid, Spain
| | | | - J C Garzón
- Anesthesiology and Perioperative Medicine. Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | - V Martínez-Pons
- Department of Anesthesiology, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - M Casalderrey-Rivas
- Department of Anesthesiology, Complejo Hospitalario Universitario de Ourense, Ourense, Spain
| | - M Á Fernández-Vaquero
- Department of Anesthesiology, Hospital Clínica Universitaria de Navarra, Madrid, Spain
| | - E Martínez-Hurtado
- Department of Anesthesiology, Hospital Universitario Infanta Leonor, Madrid, Spain
| | | | - L Reviriego-Agudo
- Department of Anesthesiology. Hospital Clínico Universitario, Valencia, Spain
| | - U Gutierrez-Couto
- Biblioteca, Complejo Hospitalario Universitario de Ferrol (CHUF), Ferrol, A Coruña, Spain
| | - J García-Fernández
- Department of Anesthesiology, Hospital Universitario Puerta de Hierro-Majadahonda, Majadahonda, Madrid, Spain; President of the Spanish Society of Anesthesiology, Resuscitation and Pain Therapy (SEDAR), Spain
| | | | | | | | | | - J M Fandiño Orgeira
- Servicio de Urgencias, Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain
| | - M J Vázquez Lima
- Emergency Department, Hospital do Salnes, Vilagarcía de Arousa, Pontevedra, Spain; President of the Spanish Emergency Medicine Society (SEMES), Spain
| | - M Mayo-Yáñez
- Department of Otorhinolaryngology/Head Neck Surgery, Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - P Parente-Arias
- Department of Otorhinolaryngology/Head Neck Surgery, Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - J A Sistiaga-Suárez
- Department of Otorhinolaryngology, Hospital Universitario Donostia, Donostia, Gipuzkoa, Spain
| | - M Bernal-Sprekelsen
- Department of Otorhinolaryngology, Hospital Clínic Barcelona, University of Barcelona, Barcelona, Spain; President of the Spanish Society for Otorhinolaryngology Head & Neck Surgery (SEORL-CCC), Spain
| | - P Charco-Mora
- Department of Anesthesiology, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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Wu CC, Chen WL, Tseng CW, Su YC, Chen HL, Lin CL, Hung TY. Continuous aerosol monitoring and comparison of aerosol exposure based on smoke dispersion distance and concentrations during oxygenation therapy. Sci Rep 2023; 13:15910. [PMID: 37741874 PMCID: PMC10517922 DOI: 10.1038/s41598-023-42909-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 09/15/2023] [Indexed: 09/25/2023] Open
Abstract
This study evaluated the aerosol exposure risks while using common noninvasive oxygenation devices. A simulated mannequin was designed to breathe at a minute ventilation of 20 L/min and used the following oxygen-therapy devices: nasal cannula oxygenation (NCO) at 4 and 15 L/min, nonrebreathing mask (NRM) at 15 L/min, simple mask at 6 L/min, combination of NCO at 15 L/min and NRM at 15 L/min, high-flow nasal cannula (HFNC) at 50 L/min, and flush rate NRM. Two-dimension of the dispersion distance and the aerosol concentrations were measured at head, trunk, and foot around the mannequin for over 10 min. HFNC and flush-rate NRM yielded the longest dispersion distance and highest aerosol concentrations over the three sites of the mannequin than the other oxygenation devices and should use with caution. For flow rates of < 15 L/min, oxygenation devices with mask-like effects, such as NRM or NCO with NRM, decreased aerosol dispersion more effectively than NCO alone or a simple mask. In the upright position, the foot area exhibited the highest aerosol concentration regardless of the oxygenation device than the head-trunk areas of the mannequin. Healthcare workers should be alert even at the foot side of the patient while administering oxygenation therapy.
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Affiliation(s)
- Chih-Chieh Wu
- Department of Emergency Medicine, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan
| | - Wei-Lun Chen
- Department of Emergency Medicine, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan
| | - Cheng-Wei Tseng
- Department of Emergency Medicine, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan
| | - Yung-Cheng Su
- School of Medicine, Tzu Chi University, Hualien County, Hualien, Taiwan
- Department of Emergency, Ditmanson Medical Foundation, Chiayi Christian Hospital, Chiayi County, Chiayi, Taiwan
| | - Hsin-Ling Chen
- Department of Emergency Medicine, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan
| | - Chun-Lung Lin
- Department of Emergency Medicine, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan
| | - Tzu-Yao Hung
- Department of Emergency Medicine, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan.
- School of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.
- CrazyatLAB (Critical Airway Training Laboratory), Taipei, Taiwan.
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White LD, Vlok RA, Thang CY, Tian DH, Melhuish TM. Oxygenation during the apnoeic phase preceding intubation in adults in prehospital, emergency department, intensive care and operating theatre environments. Cochrane Database Syst Rev 2023; 8:CD013558. [PMID: 37531462 PMCID: PMC10419336 DOI: 10.1002/14651858.cd013558.pub2] [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] [Indexed: 08/04/2023]
Abstract
BACKGROUND Apnoeic oxygenation is the delivery of oxygen during the apnoeic phase preceding intubation. It is used to prevent respiratory complications of endotracheal intubation that have the potential to lead to significant adverse events including dysrhythmia, haemodynamic decompensation, hypoxic brain injury and death. Oxygen delivered by nasal cannulae during the apnoeic phase of intubation (apnoeic oxygenation) may serve as a non-invasive adjunct to endotracheal intubation to decrease the incidence of hypoxaemia, morbidity and mortality. OBJECTIVES To evaluate the benefits and harms of apnoeic oxygenation before intubation in adults in the prehospital, emergency department, intensive care unit and operating theatre environments compared to no apnoeic oxygenation during intubation. SEARCH METHODS We used standard, extensive Cochrane search methods. The latest search date was 4 November 2022. SELECTION CRITERIA We included randomized controlled trials (RCTs) and quasi-RCTs that compared the use of any form of apnoeic oxygenation including high flow and low flow nasal cannulae versus no apnoeic oxygenation during intubation. We defined quasi-randomization as participant allocation to each arm by means that were not truly random, such as alternation, case record number or date of birth. We excluded comparative prospective cohort and comparative retrospective cohort studies, physiological modelling studies and case reports. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Our primary outcomes were 1. hospital stay and 2. incidence of severe hypoxaemia. Our secondary outcomes were 3. incidence of hypoxaemia, 4. lowest recorded saturation of pulse oximetry (SpO2), 5. intensive care unit (ICU) stay, 6. first pass success rate, 7. adverse events and 8. MORTALITY We used GRADE to assess certainty of evidence. MAIN RESULTS We included 23 RCTs (2264 participants) in our analyses. Eight studies (729 participants) investigated the use of low-flow (15 L/minute or less), and 15 studies (1535 participants) investigated the use of high-flow (greater than 15 L/minute) oxygen. Settings were varied and included the emergency department (2 studies, 327 participants), ICU (7 studies, 913 participants) and operating theatre (14 studies, 1024 participants). We considered two studies to be at low risk of bias across all domains. None of the studies reported on hospital length of stay. In predominately critically ill people, there may be little to no difference in the incidence of severe hypoxaemia (SpO2 less than 80%) when using apnoeic oxygenation at any flow rate from the start of apnoea until successful intubation (risk ratio (RR) 0.86, 95% confidence interval (CI) 0.66 to 1.11; P = 0.25, I² = 0%; 15 studies, 1802 participants; low-certainty evidence). There was insufficient evidence of any effect on the incidence of hypoxaemia (SpO2 less than 93%) (RR 0.58, 95% CI 0.23 to 1.46; P = 0.25, I² = 36%; 3 studies, 489 participants; low-certainty evidence). There may be an improvement in the lowest recorded oxygen saturation, with a mean increase of 1.9% (95% CI 0.75% to 3.05%; P < 0.001, I² = 86%; 15 studies, 1525 participants; low-certainty evidence). There may be a reduction in the duration of ICU stay with the use of apnoeic oxygenation during intubation (mean difference (MD) ‒1.13 days, 95% CI ‒1.51 to ‒0.74; P < 0.0001, I² = 46%; 5 studies, 815 participants; low-certainty evidence). There may be little to no difference in first pass success rate (RR 1.00, 95% CI 0.93 to 1.08; P = 0.79, I² = 0%; 8 studies, 826 participants; moderate-certainty evidence). There may be little to no difference in incidence of adverse events including oral trauma, arrhythmia, aspiration, hypotension, pneumonia and cardiac arrest when apnoeic oxygenation is used. There was insufficient evidence about any effect on mortality (RR 0.84, 95% CI 0.70 to 1.00; P = 0.06, I² = 0%; 6 studies, 1015 participants; low-certainty evidence). AUTHORS' CONCLUSIONS There was some evidence that oxygenation during the apnoeic phase of intubation may improve the lowest recorded oxygen saturation. However, the differences in oxygen saturation were unlikely to be clinically significant. This did not translate into any measurable effect on the incidence of hypoxaemia or severe hypoxaemia in a group of predominately critically ill people. We were unable to assess the influence on hospital length of stay; however, there was a reduction in ICU stay in the apnoeic oxygenation group. The mechanism for this is unclear as there was little to no difference in first pass success or adverse event rates.
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Affiliation(s)
- Leigh D White
- Department of Anaesthesia and Perioperative Medicine, Sunshine Coast University Hospital, Birtinya, Australia
| | - Ruan A Vlok
- Intensive Care Medicine, Royal North Shore Hospital, St Leonards, Australia
| | - Christopher Yc Thang
- Department of Anaesthesia and Perioperative Medicine, Sunshine Coast University Hospital, Birtinya, Australia
| | | | - Thomas M Melhuish
- Department of Intensive Care Medicine, Royal Prince Alfred Hospital, Camperdown, Australia
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Wang HY, Lin C, Chen CC, Teng WN, Chen KH, Lo MT, Ting CK. Improvement in vocal-cord visualization with Trachway video intubating stylet using direct oxygen flow and effective analysis of the fraction of inspired oxygen: a bench study. J Clin Monit Comput 2022; 36:1723-1730. [PMID: 35244821 DOI: 10.1007/s10877-022-00818-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 01/21/2022] [Indexed: 10/18/2022]
Abstract
The Trachway video intubating stylet device facilitates the visualization of the airways of patients from the tip of an endotracheal tube (ETT) during intubation. The major limitations of Trachway are the restricted view due to secretions and the risk of a prolonged apnea during intubation. We conducted a bench study to verify the performance of an alternative, easily applicable airway device that allows better visualization of trackways during Trachway-assisted intubation and prevents the detrimental effects of apnea-related hypoxia. We conducted a bench study to thoroughly evaluate the oral-secretion-elimination ability of a newly designed oxygen delivery device (ODD) to improve vocal-cord visualization using the three commonly used ETT sizes (i.e., 7, 7.5, and 8 mm). Moreover, we measured the fraction of inspired oxygen (FiO2) under different, continuous oxygen-flow supplies (1-10 L/min) during intubation. Each condition was analyzed for a 2 min video-stylet-intubation period. The supplemental oxygen flow and FiO2 fraction achieved using our ODD were higher, and smaller ETTs exhibited better secretion elimination. The ODD, which can be easily coupled with Trachway stylets, enabled high-quality visualization during oxygen flows of 6-8 L/min, and higher FiO2 fractions were achieved at higher oxygen flow rates. The use of the ODD improved the visualization of the airways during video stylet-assisted intubations using the additional FiO2 supply. The ODD developed in this study improves the visualization of airways with Trachway stylets and enhances the safety of intubation.
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Affiliation(s)
- Hsin-Yi Wang
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, 11217, Taiwan, ROC
- Department of Biomedical Sciences and Engineering, National Central University, Chungli, Taiwan
| | - Chen Lin
- Department of Biomedical Sciences and Engineering, National Central University, Chungli, Taiwan
| | - Chien-Chang Chen
- Department of Biomedical Sciences and Engineering, National Central University, Chungli, Taiwan
| | - Wei-Nung Teng
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, 11217, Taiwan, ROC
| | - Kun-Hui Chen
- Department of Orthopedics and Traumatology, Taipei Veterans General Hospital and National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Men-Tzung Lo
- Department of Biomedical Sciences and Engineering, National Central University, Chungli, Taiwan
| | - Chien-Kun Ting
- Department of Anesthesiology, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei City, 11217, Taiwan, ROC.
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Li YO, Wong OF, Ko S, Ma HM, Lit CHA, Shih YN. A manikin study comparing the performance of traditional Macintosh laryngoscope, GlideScope ®, Airtraq ®, and video-optical intubation stylet in endotracheal intubation used by emergency doctors in simulated difficult airway intubation: A pilot study. HONG KONG J EMERG ME 2022. [DOI: 10.1177/10249079221125023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: The video-optical intubation stylet (VS) is a slim, rigid but flexible intubating device that aids physicians to intubate patients, particularly with difficult airways. Objectives: The objective of this study was to compare the performance of emergency department doctors in using different intubating devices for intubation in an airway manikin simulating different difficult airway scenarios. Methods: Thirty emergency department doctors were recruited in a pilot study. Their performance of using traditional Macintosh laryngoscope, GlideScope®, Airtraq® and C-MAC® Video Stylet were compared in three situations: normal, restricted cervical motion and limited oral aperture. The time for intubation, first attempt success rate, failure rate, dental injury and the subjective ease of different devices by the participants were compared. Result: The mean intubation time by VS in each scenario was significantly shorter compared with other devices (Normal: 19.77s vs 24.67–28.19s, p = 0.014; Cervical restriction: 20.85 vs 26.17–31.26s, p = 0.008; Limited oral aperture:19.03 vs 29.35, p = 0.001). However, there was no significant difference in failure rate or first attempt success rate. The incidence of dental injury was significantly lower with VS than other laryngoscopes (p = 0.001, p < 0.05 and p < 0.05 in normal, cervical restriction and limited oral aperture scenarios, respectively). Moreover, participants appreciated that VS was the easiest device to intubate in each scenario. (p < 0.05 in all scenarios) Conclusion: The performance of VS was comparable to or even better than the commonly used laryngoscopes in the emergency department in airway management. When adequate training is provided, VS can be a potentially good alternative for tracheal intubation in different situations.
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Affiliation(s)
- Yu On Li
- Accident and Emergency Department, North Lantau Hospital, Lantau, Hong Kong
| | - Oi Fung Wong
- Accident and Emergency Department, North Lantau Hospital, Lantau, Hong Kong
| | - Shing Ko
- Accident and Emergency Department, North Lantau Hospital, Lantau, Hong Kong
| | - Hing Man Ma
- Accident and Emergency Department, North Lantau Hospital, Lantau, Hong Kong
| | | | - Yau Ngai Shih
- Accident and Emergency Department, North Lantau Hospital, Lantau, Hong Kong
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M S, Ross H, KT S, I Z, Robert G. Rapid Sequence Induction/Intubation: What needs to be fast? TRENDS IN ANAESTHESIA AND CRITICAL CARE 2022. [DOI: 10.1016/j.tacc.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Chua MT, Ng WM, Lu Q, Low MJW, Punyadasa A, Cove ME, Yau YW, Khan FA, Kuan WS. Pre- and apnoeic high-flow oxygenation for rapid sequence intubation in the emergency department (the Pre-AeRATE trial): A multicentre randomised controlled trial. ANNALS OF THE ACADEMY OF MEDICINE, SINGAPORE 2022; 51:149-160. [PMID: 35373238 DOI: 10.47102/annals-acadmedsg.2021407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Evidence regarding the efficacy of high-flow nasal cannula (HFNC) oxygenation for preoxygenation and apnoeic oxygenation is conflicting. Our objective is to evaluate whether HFNC oxygenation for preoxygenation and apnoeic oxygenation maintains higher oxygen saturation (SpO2) during rapid sequence intubation (RSI) in ED patients compared to usual care. METHODS This was a multicentre, open-label, randomised controlled trial in adult ED patients requiring RSI. Patients were randomly assigned 1:1 to either intervention (HFNC oxygenation at 60L/min) group or control (non-rebreather mask for preoxygenation and nasal prongs of at least 15L/min oxygen flow for apnoeic oxygenation) group. Primary outcome was lowest SpO2 during the first intubation attempt. Secondary outcomes included incidence of SpO2 falling below 90% and safe apnoea time. RESULTS One hundred and ninety patients were included, with 97 in the intervention and 93 in the control group. Median lowest SpO2 during the first intubation attempt was 100% in both groups. Incidence of SpO2 falling below 90% was lower in the intervention group (15.5%) compared to the control group (22.6%) (adjusted relative risk=0.68, 95% confidence interval [CI] 0.37-1.25). Post hoc quantile regression analysis showed that the first quartile of lowest SpO2 during the first intubation attempt was greater by 5.46% (95% CI 1.48-9.45%, P=0.007) in the intervention group. CONCLUSION Use of HFNC for preoxygenation and apnoeic oxygenation, when compared to usual care, did not improve lowest SpO2 during the first intubation attempt but may prolong safe apnoea time.
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Affiliation(s)
- Mui Teng Chua
- Emergency Medicine Department, National University Hospital, Singapore
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9
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Nikolla DA, Carlson JN, Jimenez Stuart PM, Asar I, April MD, Kaji AH, Brown C. Comparing postinduction hypoxemia between ramped and supine position endotracheal intubations with apneic oxygenation in the emergency department. Acad Emerg Med 2022; 29:317-325. [PMID: 34757633 DOI: 10.1111/acem.14415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Ramped position and apneic oxygenation are strategies to mitigate hypoxemia; however, the benefits of these strategies when utilized together remain unclear. Therefore, we compared first-attempt, postinduction hypoxemia between adult emergency department (ED) endotracheal intubations performed with apneic oxygenation in the ramped versus supine positions. METHODS We used the National Emergency Airway Registry (NEAR), a multicenter registry of data on ED intubations from 25 academic and community sites. We included first-attempt intubations with direct (DL) and video (VL) laryngoscopy in subjects ≥ 18 years old with nontrauma indications receiving apneic oxygenation. We examined patient characteristics (e.g., sex, obesity) and key intubation outcomes, including hypoxemia (primary outcome), first-pass success, and other adverse events (e.g., bradycardia). In addition, we examined unadjusted odds ratios (OR) and adjusted ORs (aOR) for key variables and stratified by laryngoscope type. RESULTS We included 210 ramped cases and 1,820 supine cases in the DL cohort and 202 ramped and 1,626 supine cases in the VL cohort. Rates of postinduction hypoxemia were similar between supine and ramped position in both the DL cohort (supine 6.5% and ramped 7.6%, aOR [95% CI] = 0.96 [0.55 to 1.67]) and the VL cohort (supine 10.1% and ramped 12.4%, aOR [95% CI] = 0.97 [0.60 to 1.56]). Other outcomes were also similar between groups. CONCLUSION Using this large national data set, we did not identify a difference in postinduction hypoxemia between ramped and supine positions in this cohort of ED intubations with apneic oxygenation.
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Affiliation(s)
- Dhimitri A. Nikolla
- Department of Emergency Medicine Allegheny Health Network–Saint Vincent Erie Pennsylvania USA
| | - Jestin N. Carlson
- Department of Emergency Medicine Allegheny Health Network–Saint Vincent Erie Pennsylvania USA
| | - Paul M. Jimenez Stuart
- Department of Emergency Medicine Allegheny Health Network–Saint Vincent Erie Pennsylvania USA
| | - Irtaza Asar
- Department of Emergency Medicine Allegheny Health Network–Saint Vincent Erie Pennsylvania USA
| | - Michael D. April
- 40th Forward Resuscitative Surgical Detachment 627th Hospital Center Fort Carson Colorado USA
- Department of Military and Emergency Medicine Uniformed Services University of the Health Sciences Bethesda Maryland USA
| | - Amy H. Kaji
- Department of Emergency Medicine Harbor–UCLA Torrance California USA
| | - Calvin A. Brown
- Department of Emergency Medicine Brigham and Women’s Hospital Boston Massachusetts USA
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10
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Harris M, Lyng JW, Mandt M, Moore B, Gross T, Gausche-Hill M, Donofrio-Odmann JJ. Prehospital Pediatric Respiratory Distress and Airway Management Interventions: An NAEMSP Position Statement and Resource Document. PREHOSP EMERG CARE 2022; 26:118-128. [PMID: 35001823 DOI: 10.1080/10903127.2021.1994675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Devices and techniques such as bag-valve-mask ventilation, endotracheal intubation, supraglottic airway devices, and noninvasive ventilation offer important tools for airway management in critically ill EMS patients. Over the past decade the tools, technology, and strategies used to assess and manage pediatric respiratory and airway emergencies have evolved, and evidence regarding their use continues to grow.NAEMSP recommends:Methods and tools used to properly size pediatric equipment for ages ranging from newborns to adolescents should be available to all EMS clinicians. All pediatric equipment should be routinely checked and clearly identifiable in EMS equipment supply bags and vehicles.EMS agencies should train and equip their clinicians with age-appropriate pulse oximetry and capnography equipment to aid in the assessment and management of pediatric respiratory distress and airway emergencies.EMS agencies should emphasize noninvasive positive pressure ventilation and effective bag-valve-mask ventilation strategies in children.Supraglottic airways can be used as primary or secondary airway management interventions for pediatric respiratory failure and cardiac arrest in the EMS setting.Pediatric endotracheal intubation has unclear benefit in the EMS setting. Advanced approaches to pediatric ETI including drug-assisted airway management, apneic oxygenation, and use of direct and video laryngoscopy require further research to more clearly define their risks and benefits prior to widespread implementation.If considering the use of pediatric endotracheal intubation, the EMS medical director must ensure the program provides pediatric-specific initial training and ongoing competency and quality management activities to ensure that EMS clinicians attain and maintain mastery of the intervention.Paramedic use of direct laryngoscopy paired with Magill forceps to facilitate foreign body removal in the pediatric patient should be maintained even when pediatric endotracheal intubation is not approved as a local clinical intervention.
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11
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Jarvis JL, Lyng JW, Miller BL, Perlmutter MC, Abraham H, Sahni R. Prehospital Drug Assisted Airway Management: An NAEMSP Position Statement and Resource Document. PREHOSP EMERG CARE 2022; 26:42-53. [PMID: 35001829 DOI: 10.1080/10903127.2021.1990447] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Airway management is a critical intervention for patients with airway compromise, respiratory failure, and cardiac arrest. Many EMS agencies use drug-assisted airway management (DAAM) - the administration of sedatives alone or in combination with neuromuscular blockers - to facilitate advanced airway placement in patients with airway compromise or impending respiratory failure who also have altered mental status, agitation, or intact protective airway reflexes. While DAAM provides several benefits including improving laryngoscopy and making insertion of endotracheal tubes and supraglottic airways easier, DAAM also carries important risks. NAEMSP recommends:DAAM is an appropriate tool for EMS clinicians in systems with clear guidelines, sufficient training, and close EMS physician oversight. DAAM should not be used in settings without adequate resources.EMS physicians should develop clinical guidelines informed by evidence and oversee the training and credentialing for safe and effective DAAM.DAAM programs should include best practices of airway management including patient selection, assessmenct and positioning, preoxygenation strategies including apneic oxygenation, monitoring and management of physiologic abnormalities, selection of medications, post-intubation analgesia and sedation, equipment selection, airway confirmation and monitoring, and rescue airway techniques.Post-DAAM airway placement must be confirmed and continually monitored with waveform capnography.EMS clinicians must have the necessary equipment and training to manage patients with failed DAAM, including bag mask ventilation, supraglottic airway devices and surgical airway approaches.Continuous quality improvement for DAAM must include assessment of individual and aggregate performance metrics. Where available for review, continuous physiologic recordings (vital signs, pulse oximetry, and capnography), audio and video recordings, and assessment of patient outcomes should be part of DAAM continuous quality improvement.
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12
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Davis DP, Bosson N, Guyette FX, Wolfe A, Bobrow BJ, Olvera D, Walker RG, Levy M. Optimizing Physiology During Prehospital Airway Management: An NAEMSP Position Statement and Resource Document. PREHOSP EMERG CARE 2022; 26:72-79. [PMID: 35001819 DOI: 10.1080/10903127.2021.1992056] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Airway management is a critical component of resuscitation but also carries the potential to disrupt perfusion, oxygenation, and ventilation as a consequence of airway insertion efforts, the use of medications, and the conversion to positive-pressure ventilation. NAEMSP recommends:Airway management should be approached as an organized system of care, incorporating principles of teamwork and operational awareness.EMS clinicians should prevent or correct hypoxemia and hypotension prior to advanced airway insertion attempts.Continuous physiological monitoring must be used during airway management to guide the timing of, limit the duration of, and inform decision making during advanced airway insertion attempts.Initial and ongoing confirmation of advanced airway placement must be performed using waveform capnography. Airway devices must be secured using a reliable method.Perfusion, oxygenation, and ventilation should be optimized before, during, and after advanced airway insertion.To mitigate aspiration after advanced airway insertion, EMS clinicians should consider placing a patient in a semi-upright position.When appropriate, patients undergoing advanced airway placement should receive suitable pharmacologic anxiolysis, amnesia, and analgesia. In select cases, the use of neuromuscular blocking agents may be appropriate.
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13
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Wang YC, Lu MC, Yang SF, Bien MY, Chen YF, Li YT. Respiratory care for the critical patients with 2019 novel coronavirus. Respir Med 2021; 186:106516. [PMID: 34218168 PMCID: PMC8215880 DOI: 10.1016/j.rmed.2021.106516] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 01/25/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is transmitted through respiratory droplets, aerosols and close contact. Cross infections occur because viruses spread rapidly among humans. Nineteen percent (19%) of the infected patients developed severe pneumonia and acute respiratory distress syndrome (ARDS). Hypoxemia usually occurs and patients may require oxygen therapy or mechanical ventilation (MV) support. In this article, recently published clinical experience and observational studies were reviewed. Corresponding respiratory therapy regarding different stages of infection is proposed. Infection control principles and respiratory strategies including oxygen therapy, non-invasive respiratory support (NIRS), intubation evaluation, equipment preparation, ventilator settings, special maneuvers comprise of the prone position (PP), recruitment maneuver (RM), extracorporeal membrane oxygenation (ECMO), weaning and extubation are summarized. Respiratory equipment and device disinfection recommendations are worked up. We expect this review article could be used as a reference by healthcare workers in patient care while minimizing the risk of environmental contamination.
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Affiliation(s)
- Yao-Chen Wang
- Division of Pulmonary Medicine, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, 402306, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, 402306, Taiwan.
| | - Min-Chi Lu
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, 404332, Taiwan; Department of Microbiology and Immunology, School of Medicine, China Medical University, Taichung, 406040, Taiwan.
| | - Shun-Fa Yang
- Institute of Medicine, Chung San Medical University, Taichung, 402306, Taiwan; Department of Medical Research, Chung Shan Medical University Hospital, Taichung, 402306, Taiwan.
| | - Mauo-Ying Bien
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei, 116081, Taiwan; School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan.
| | - Yi-Fang Chen
- Division of Respiratory Therapy, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, 402306, Taiwan.
| | - Yia-Ting Li
- Institute of Medicine, Chung San Medical University, Taichung, 402306, Taiwan; Division of Respiratory Therapy, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, 402306, Taiwan.
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14
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Kornas RL, Owyang CG, Sakles JC, Foley LJ, Mosier JM. Evaluation and Management of the Physiologically Difficult Airway: Consensus Recommendations From Society for Airway Management. Anesth Analg 2021; 132:395-405. [PMID: 33060492 DOI: 10.1213/ane.0000000000005233] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Multiple international airway societies have created guidelines for the management of the difficult airway. In critically ill patients, there are physiologic derangements beyond inadequate airway protection or hypoxemia. These risk factors contribute to the "physiologically difficult airway" and are associated with complications including cardiac arrest and death. Importantly, they are largely absent from international guidelines. Thus, we created management recommendations for the physiologically difficult airway to provide practical guidance for intubation in the critically ill. Through multiple rounds of in-person and telephone conferences, a multidisciplinary working group of 12 airway specialists (Society for Airway Management's Special Projects Committee) over a time period of 3 years (2016-2019) reviewed airway physiology topics in a modified Delphi fashion. Consensus agreement with the following recommendations among working group members was generally high with 80% of statements showing agreement within a 10% range on a sliding scale from 0% to 100%. We limited the scope of this analysis to reflect the resources and systems of care available to out-of-operating room adult airway providers. These recommendations reflect the practical application of physiologic principles to airway management available during the analysis time period.
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Affiliation(s)
- Rebecca L Kornas
- From the Department of Emergency Medicine, Denver Health, Denver, Colorado
| | - Clark G Owyang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York
| | - John C Sakles
- Department of Emergency Medicine, University of Arizona College of Medicine, Tucson, Arizona
| | - Lorraine J Foley
- Department of Anesthesiology, Winchester Hospital, Tufts University School of Medicine, Boston, Massachusetts
| | - Jarrod M Mosier
- Department of Emergency Medicine, University of Arizona College of Medicine, Tucson, Arizona.,Division of Pulmonary, Allergy, Critical Care and Sleep, Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona
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15
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Crewdson K, Heywoth A, Rehn M, Sadek S, Lockey D. Apnoeic oxygenation for emergency anaesthesia of pre-hospital trauma patients. Scand J Trauma Resusc Emerg Med 2021; 29:10. [PMID: 33413576 PMCID: PMC7789511 DOI: 10.1186/s13049-020-00817-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 11/24/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Efficient and timely airway management is universally recognised as a priority for major trauma patients, a proportion of whom require emergency intubation in the pre-hospital setting. Adverse events occur more commonly in emergency airway management, and hypoxia is relatively frequent. The aim of this study was to establish whether passive apnoeic oxygenation was effective in reducing the incidence of desaturation during pre-hospital emergency anaesthesia. METHODS A prospective before-after study was performed to compare patients receiving standard care and those receiving additional oxygen via nasal prongs. The primary endpoint was median oxygen saturation in the peri-rapid sequence induction period, (2 minutes pre-intubation to 2 minutes post-intubation) for all patients. Secondary endpoints included the incidence of hypoxia in predetermined subgroups. RESULTS Of 725 patients included; 188 patients received standard treatment and 537 received the intervention. The overall incidence of hypoxia (first recorded SpO2 < 90%) was 16.7%; 10.9% had SpO2 < 85%. 98/725 patients (13.5%) were hypoxic post-intubation (final SpO2 < 90% 10 minutes post-intubation). Median SpO2 was 100% vs. 99% for the standard vs. intervention group. There was a statistically significant benefit from apnoeic oxygenation in reducing the frequency of peri-intubation hypoxia (SpO2 < =90%) for patients with initial SpO2 > 95%, p = 0.0001. The other significant benefit was observed in the recovery phase for patients with severe hypoxia prior to intubation. CONCLUSION Apnoeic oxygenation did not influence peri-intubation oxygen saturations, but it did reduce the frequency and duration of hypoxia in the post-intubation period. Given that apnoeic oxygenation is a simple low-cost intervention with a low complication rate, and that hypoxia can be detrimental to outcome, application of nasal cannulas during the drug-induced phase of emergency intubation may benefit a subset of patients undergoing emergency anaesthesia.
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Affiliation(s)
- Kate Crewdson
- London's Air Ambulance, London, UK. .,Intensive Care Unit, Gate 37, Level 2, Brunel Building, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK.
| | | | - Marius Rehn
- London's Air Ambulance, London, UK.,Department of Research, Norwegian Air Ambulance Foundation, Oslo, Norway.,Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
| | - Samy Sadek
- Essex & Herts Air Ambulance Trust, Essex, UK
| | - David Lockey
- London's Air Ambulance, London, UK.,Blizard Institute, Queen Mary University of London, London, UK
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16
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George L, Mohanty R, George S, Babu M. Apnoeic oxygenation during simulated difficult intubation in obese patients: comparison of buccal ring, adair and elwyn tube versus nasal cannula: A prospective randomized controlled trial. Anesth Essays Res 2021; 15:408-412. [PMID: 35422555 PMCID: PMC9004268 DOI: 10.4103/aer.aer_114_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/02/2022] [Accepted: 01/02/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Apnoeic oxygenation is an established method of increasing safe apnoea times during intubation and this is of more importance in obese patients. The usefulness of buccal Ring, Adair and Elwyn (RAE) oxygenation has been established in previous studies, however a head-to-head comparison with nasal cannula (NC) is lacking. Aim: The aim of this study was to compare apnoea time with buccal RAE (BR) versus NC in obese patients. Setting and Design: This was a prospective, nonblinded randomized controlled trial conducted in a tertiary hospital where fifty American Society of Anaesthesiologists Physical Status Class I and II, obese patients with body mass index ≥30, posted for elective surgery were included. Materials and Methods: Following adequate preoxygenation and standard induction of anaesthesia, a prolonged simulated difficult laryngoscopy was performed during which oxygen was provided via either BR or NC. The primary outcome was time to desaturation to <95% or 10 min, which ever occurred first. Other outcomes recorded were lowest saturation, time to resaturation and highest end tidal carbon di oxide. Statistical Analysis: Mean with standard deviation (SD) or median with inter quartile range were used for continuous variables and absolute number with percentage were used for categorical variables. The primary outcome was analyzed using Kaplan-Meier survival curves, and log-rank tests were applied. Results: Patient characteristics were similar in both arms. The mean apnoea time in seconds (SD) in the BR group, 375.3 (116.6) was higher than the NC group 316.1 (94.1), P = 0.054. From the Kapan Meier curves the probability of desaturating to <95% was earlier in the NC group than the BR group (P = 0.092). The other outcomes were similar in both groups. Conclusion: This is the first study that demonstrates that oxygenation via a BR is better than NC in providing apnoeic oxygenation in obese patients and can safely be used when NC are contraindicated.
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17
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Perera A, Alkhouri H, Fogg T, Vassiliadis J, Mackenzie J, Wimalasena Y. Apnoeic oxygenation was associated with decreased desaturation rates during rapid sequence intubation in multiple Australian and New Zealand emergency departments. Emerg Med J 2020; 38:118-124. [PMID: 33298602 DOI: 10.1136/emermed-2019-208424] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 10/19/2020] [Accepted: 10/31/2020] [Indexed: 11/04/2022]
Abstract
Apnoeic oxygenation (ApOx) has been demonstrated to reduce the incidence of desaturation, although evidence of benefit has been conflicting depending on the technique used. The aim of this study was to compare the incidence of desaturation between patients who received ApOx via conventional nasal cannula (NC) and those who did not, using a large, multicentre airway registry. METHODS This study is an analysis of 24 months of prospectively collected data in the Australia and New Zealand Emergency Department Airway Registry (June 2013-June 2015). The registry includes information on all intubated adults from 43 emergency departments. Patients intubated during cardiac arrest (n=393), those who received active ventilation prior to the first intubation attempt (n=486), and where the use of ApOx was not recorded either way (n=312) were excluded. The proportion of patients who desaturated (Sa02 <93) in the group that received ApOx and those that did not were compared. To evaluate the association of ApOx with patient desaturation, a logistic regression model based on factors expected to influence desaturation was performed. RESULTS Of 2519 patients analysed, 1669 (66.3%) received ApOx via NC while 850 (33.7%) did not. Desaturation in the cohort receiving ApOx was 10.4% compared with standard care (no ApOx) 13.7%. ApOx had a protective effect for desaturation (OR 0.71 95% CI 0.53 to 0.95). Single intubation attempt was associated with reduced risk of desaturation of (OR 0.10, 95% CI 0.06 to 0.17); this was increased on second attempt (OR 0.37, 95% CI 0.21 to 0.68). Desaturation was also associated with the physician recording that they had anticipated a difficult airway (OR 1.83, 95% CI 1.34 to 2.48). CONCLUSION This large multicentre registry study provides evidence that ApOx delivered through a conventional NC is associated with a lower incidence of desaturation in patients undergoing rapid sequence intubation. TRIAL REGISTRATION NUMBER ACTRN12613001052729.
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Affiliation(s)
- Adrian Perera
- Intensive Care, Royal Free London NHS Foundation Trust, London, UK
| | - Hatem Alkhouri
- Emergency Care Institute, Agency for Clinical Innovation, Sydney, New South Wales, Australia.,Faculty of Medicine, The University of New South Wales, Sydney, New South Wales, Australia
| | - Toby Fogg
- Emergency Department, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - John Vassiliadis
- Emergency Department, Royal North Shore Hospital, Sydney, New South Wales, Australia.,Medical Education, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - John Mackenzie
- Acute Care Adult and Paediatrics, Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Yashvi Wimalasena
- Emergency Medicine, University Hospitals Coventry & Warwickshire NHS Trust, Birmingham, West Midlands, UK.,GSA HEMS, NSW Ambulance Service, Sydney, New South Wales, Australia.,Emergency Department, Lismore Base Hospital, Lismore, New South Wales, Australia
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18
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Compared Efficacy of Four Preoxygenation Methods for Intubation in the ICU: Retrospective Analysis of McGrath Mac Videolaryngoscope Versus Macintosh Laryngoscope (MACMAN) Trial Data. Crit Care Med 2020; 47:e340-e348. [PMID: 30707125 DOI: 10.1097/ccm.0000000000003656] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVES Severe hypoxemia is the most common serious adverse event during endotracheal intubation. Preoxygenation is performed routinely as a preventive measure. The relative efficacy of the various available preoxygenation devices is unclear. Here, our objective was to assess associations between preoxygenation devices and pulse oximetry values during endotracheal intubation. DESIGN Post hoc analysis of data from a multicenter randomized controlled superiority trial (McGrath Mac Videolaryngoscope Versus Macintosh Laryngoscope [MACMAN]) comparing videolaryngoscopy to Macintosh laryngoscopy for endotracheal intubation in critical care. SETTING Seven French ICUs. PATIENTS Three-hundred nineteen of the 371 critically ill adults requiring endotracheal intubation who were included in the MACMAN trial. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Minimal pulse oximetry value during endotracheal intubation was the primary endpoint. We also sought risk factors for pulse oximetry below 90%. Of 319 patients, 157 (49%) had bag-valve-mask, 71 (22%) noninvasive ventilation, 71 (22%) non-rebreathing mask, and 20 (7%) high-flow nasal oxygen for preoxygenation. Factors independently associated with minimal pulse oximetry value were the Simplified Acute Physiology Score II severity score (p = 0.03), baseline pulse oximetry (p < 0.001), baseline PaO2/FIO2 ratio (p = 0.02), and number of laryngoscopies (p = 0.001). The only independent predictors of pulse oximetry less than 90% were baseline pulse oximetry (odds ratio, 0.71; 95% CI, 0.64-0.79; p < 0.001) and preoxygenation device: with bag-valve-mask as the reference, odds ratios were 1.10 (95% CI, 0.25-4.92) with non-rebreathing mask, 0.10 (95% CI, 0.01-0.80) with noninvasive ventilation, and 5.75 (95% CI, 1.15-28.75) with high-flow nasal oxygen. CONCLUSIONS Our data suggest that the main determinants of hypoxemia during endotracheal intubation may be related to critical illness severity and to preexisting hypoxemia. The differences across preoxygenation methods suggest that noninvasive ventilation may deserve preference in patients with marked hypoxemia before endotracheal intubation. Ongoing studies will provide further clarification about the optimal preoxygenation method for endotracheal intubation in critically ill patients.
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19
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Midega TD, Olivato GB, Hohmann FB, Neto AS. Avoiding desaturation during endotracheal intubation: is high-flow nasal cannula the answer? ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:S211. [PMID: 31656790 DOI: 10.21037/atm.2019.08.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thais Dias Midega
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | | | - Fabio Barlem Hohmann
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Ary Serpa Neto
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil.,Department of Intensive Care, Amsterdam University Medical Centers, location 'AMC', Amsterdam, The Netherlands.,Department of Cardio-Pulmonary, Division of Pulmonary, Instituto do Coração, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
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20
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Overmann KM, Boyd SD, Zhang Y, Kerrey BT. Apneic oxygenation to prevent oxyhemoglobin desaturation during rapid sequence intubation in a pediatric emergency department. Am J Emerg Med 2019; 37:1416-1421. [DOI: 10.1016/j.ajem.2018.10.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/09/2018] [Accepted: 10/17/2018] [Indexed: 10/28/2022] Open
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21
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Kim HJ, Asai T. High-flow nasal oxygenation for anesthetic management. Korean J Anesthesiol 2019; 72:527-547. [PMID: 31163107 PMCID: PMC6900423 DOI: 10.4097/kja.19174] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/20/2019] [Indexed: 12/12/2022] Open
Abstract
High-flow nasal oxygenation (HFNO) is a promising new technique for anesthesiologists. The use of HFNO during the induction of anesthesia and during upper airway surgeries has been initiated, and its applications have been rapidly growing ever since. The advantages of this technique include its easy set-up, high tolerability, and its abilities to produce positive airway pressure and a high fraction of inspired oxygen and to influence the clearance of carbon dioxide to some extent. HFNO, via a nasal cannula, can provide oxygen both to patients who can breathe spontaneously and to those who are apneic; further, this technique does not interfere with bag-mask ventilation, attempts at laryngoscopy for tracheal intubation, and surgical procedures conducted in the airway. In this review, we describe the techniques associated with HFNO and the advantages and disadvantages of HFNO based on the current state of knowledge.
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Affiliation(s)
- Hyun Joo Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Takashi Asai
- Department of Anesthesiology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
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22
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Boley SP, Stellpflug SJ. A Comparison of Resource Utilization in the Management of Anticholinergic Delirium Between Physostigmine and Nonantidote Therapy. Ann Pharmacother 2019; 53:1026-1032. [PMID: 31023063 DOI: 10.1177/1060028019846654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Antimuscarinic delirium is associated with significant morbidity, and its management requires substantial resource allocation, including intubation, restraint, and intensive care unit (ICU) placement. There is controversy over the management of these patients. Physostigmine can rapidly reverse antimuscarinic delirium but has been associated with adverse effects. Objective: This study aims to assess the effect of physostigmine use on resource allocation and adverse events. Methods: This is a retrospective chart review of patients with an antimuscarinic toxidrome at a single hospital approved by the local institutional review board. A blinded abstractor recorded data from patient charts. Whether the patient was given physostigmine, intubated, restrained, or admitting to critical care was recorded. We recorded instances of seizure, vomiting, or bradycardia. The primary aim was to compare frequency of intubation as a function of physostigmine administration. Results: A total of 141 patients were identified. We found no difference between the groups in age, gender, or initial heart rate; 65 (46%) were given physostigmine, 45 (32%) were admitted to the ICU, and 29 (20%) were intubated. Patients who received physostigmine in the first 24 hours were less likely to be intubated and less likely to be admitted to an ICU. The instance of bradycardia (n = 16), vomiting (n = 27), and seizures (n = 7) was limited, and there were no significant differences between the groups. There were no associations noted between physostigmine administration and adverse effects. Conclusion and Relevance: This study demonstrated that physostigmine use is associated with decreased resource utilization (including intubation and ICU placement) without increasing rates of bradycardia, vomiting, or seizures.
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Lyons C, Callaghan M. Uses and mechanisms of apnoeic oxygenation: a narrative review. Anaesthesia 2019; 74:497-507. [DOI: 10.1111/anae.14565] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2018] [Indexed: 12/31/2022]
Affiliation(s)
- C. Lyons
- Department of Anaesthesia; Mater Misericordiae University Hospital; Dublin Ireland
| | - M. Callaghan
- Department of Anaesthesia; Galway University Hospitals; Galway Ireland
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Grude O, Solli HJ, Andersen C, Oveland NP. Effect of nasal or nasopharyngeal apneic oxygenation on desaturation during induction of anesthesia and endotracheal intubation in the operating room: A narrative review of randomized controlled trials. J Clin Anesth 2018; 51:1-7. [PMID: 30029021 DOI: 10.1016/j.jclinane.2018.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 07/03/2018] [Accepted: 07/12/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVES To determine whether apneic oxygenation through nasal or nasopharyngeal catheters can counteract hypoxemia and desaturation during induction of anesthesia and endotracheal intubation. DESIGN Narrative review of randomized controlled trials. SETTING Operating room. PATIENTS 295 ASA I-II patients in elective surgery. INTERVENTION PubMed and Embase databases were searched for studies with apneic oxygenation. The review included randomized controlled trials with apneic oxygenation through nasal or nasopharyngeal catheters as the intervention in the setting of endotracheal intubation in adults. MEASUREMENTS Outcome measures were time until desaturation or degree of hypoxemia. MAIN RESULTS Eight randomized controlled trials were included, with a total of 295 patients. Apneic oxygenation was administered by nasopharyngeal catheter in four studies and by nasal catheter in four studies. The eight included articles studied apneic oxygenation at flow rates of 3-10 l/min in ASA I-II patients undergoing elective anesthesia in the operating room. Apneic oxygenation significantly prolonged time until desaturation opposed to the control groups in seven of the eight studies of patients undergoing anesthesia for elective surgery. CONCLUSION Apneic oxygenation through nasal or nasopharyngeal catheters can prolong time to desaturation and decrease degree of desaturation during induction of anesthesia and endotracheal intubation in adult ASA I-II patients undergoing anesthesia for elective surgery.
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Affiliation(s)
- Ola Grude
- Faculty of Health Sciences, University of Southern Denmark, J.B. Winsløws Vej 19,3 Odense C-DK-5000, Odense, Denmark.
| | - Helene Jørgensen Solli
- Faculty of Health Sciences, University of Southern Denmark, J.B. Winsløws Vej 19,3 Odense C-DK-5000, Odense, Denmark
| | - Claus Andersen
- Faculty of Health Sciences, University of Southern Denmark, J.B. Winsløws Vej 19,3 Odense C-DK-5000, Odense, Denmark; Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, Odense C,- DK- 5000, Odense, Denmark
| | - Nils Petter Oveland
- Department of Anesthesiology and Intensive Care, Stavanger University Hospital, Armauer Hansens vei 20, Stavanger- NO- 4011, Stavanger, Norway; Faculty of Health Sciences, University of Stavanger, Kjell Arholms gate 43, Stavanger- NO- 4021, Stavanger, Norway
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Vukovic AA, Hanson HR, Murphy SL, Mercurio D, Sheedy CA, Arnold DH. Apneic oxygenation reduces hypoxemia during endotracheal intubation in the pediatric emergency department. Am J Emerg Med 2018; 37:27-32. [PMID: 29699900 DOI: 10.1016/j.ajem.2018.04.039] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/17/2018] [Accepted: 04/17/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Apneic oxygenation (AO) has been evaluated in adult patients as a means of reducing hypoxemia during endotracheal intubation (ETI). While less studied in pediatric patients, its practice has been largely adopted. OBJECTIVE Determine association between AO and hypoxemia in pediatric patients undergoing ETI. METHODS Observational study at an urban, tertiary children's hospital emergency department. Pediatric patients undergoing ETI were examined during eras without (January 2011-June 2011) and with (August 2014-March 2017) apneic oxygenation. The primary outcome was hypoxemia, defined as pulse oximetry (SpO2) < 90%. The χ2 and Wilcoxon rank-sum tests examined differences between cohorts. Multivariable regression models examined adjusted associations between covariates and hypoxemia. RESULTS 149 patients were included. Cohorts were similar except for greater incidence of altered mental status in those receiving AO (26% vs. 7%, p = 0.03). Nearly 50% of the pre-AO cohort experienced hypoxemia during ETI, versus <25% in the AO cohort. Median [IQR] lowest SpO2 during ETI was 93 (69, 99) for pre-AO and 100 [95, 100] for the AO cohort (p < 0.001). In a multivariable logistic regression model, hypoxemia during ETI was associated with AO (aOR 0.3, 95% confidence interval [CI] 0.1-0.8), increased age (for 1 year, aOR 0.8, 95% CI 0.7-1.0), lowest SpO2 before ETI (for 1% increase, aOR 0.9, 95% CI 0.8-1.0), and each additional intubation attempt (aOR 4.0, 95% CI 2.2-7.2). CONCLUSIONS Apneic oxygenation is an easily-applied intervention associated with decreases in hypoxemia during pediatric ETI. Nearly 50% of children not receiving AO experienced hypoxemia.
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Affiliation(s)
- Adam A Vukovic
- Department of Pediatrics, Division of Pediatric Emergency Medicine, Vanderbilt University Medical Center, 2200 Children's Way Suite 1025, Nashville, TN 37232, USA.
| | - Holly R Hanson
- Department of Pediatrics, Division of Pediatric Emergency Medicine, Vanderbilt University Medical Center, 2200 Children's Way Suite 1025, Nashville, TN 37232, USA
| | - Shelley L Murphy
- Department of Pediatrics, Division of Pediatric Emergency Medicine, Vanderbilt University Medical Center, 2200 Children's Way Suite 1025, Nashville, TN 37232, USA
| | - Danielle Mercurio
- Department of Pediatrics, Division of Pediatric Emergency Medicine, Vanderbilt University Medical Center, 2200 Children's Way Suite 1025, Nashville, TN 37232, USA
| | - Craig A Sheedy
- Department of Emergency Medicine, Vanderbilt University Medical Center, 1313 21st Avenue South, 703 Oxford House, Nashville, TN 37232, USA
| | - Donald H Arnold
- Department of Pediatrics, Division of Pediatric Emergency Medicine, Vanderbilt University Medical Center, 2200 Children's Way Suite 1025, Nashville, TN 37232, USA; Department of Pediatrics, Division of Pulmonary Medicine and the Center for Asthma Research Vanderbilt University School of Medicine, 2200 Children's Way, Nashville, TN 37232, USA
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Jarvis JL, Gonzales J, Johns D, Sager L. Implementation of a Clinical Bundle to Reduce Out-of-Hospital Peri-intubation Hypoxia. Ann Emerg Med 2018. [PMID: 29530653 DOI: 10.1016/j.annemergmed.2018.01.044] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
STUDY OBJECTIVE Peri-intubation hypoxia is an important adverse event of out-of-hospital rapid sequence intubation. The aim of this project is to determine whether a clinical bundle encompassing positioning, apneic oxygenation, delayed sequence intubation, and goal-directed preoxygenation is associated with decreased peri-intubation hypoxia compared with standard out-of-hospital rapid sequence intubation. METHODS We conducted a retrospective, before-after study using data from a suburban emergency medical services (EMS) system in central Texas. The study population included all adults undergoing out-of-hospital intubation efforts, excluding those in cardiac arrest. The before-period intervention was standard rapid sequence intubation using apneic oxygenation at flush flow, ketamine, and a paralytic. The after-period intervention was a care bundle including patient positioning (elevated head, sniffing position), apneic oxygenation, delayed sequence intubation (administration of ketamine to facilitate patient relaxation and preoxygenation with a delayed administration of paralytics), and goal-directed preoxygenation. The primary outcome was the rate of peri-intubation hypoxia, defined as the percentage of patients with a saturation less than 90% during the intubation attempt. RESULTS The before group (October 2, 2013, to December 13, 2015) included 104 patients and the after group (August 8, 2015, to July 14, 2017) included 87 patients. The 2 groups were similar in regard to sex, age, weight, ethnicity, rate of trauma, initial oxygen saturation, rates of initial hypoxia, peri-intubation peak SpO2, preintubation pulse rate and systolic blood pressure, peri-intubation cardiac arrest, and first-pass and overall success rates. Compared with the before group, the after group experienced less peri-intubation hypoxia (44.2% versus 3.5%; difference -40.7% [95% confidence interval -49.5% to -32.1%]) and higher peri-intubation nadir SpO2 values (100% versus 93%; difference 5% [95% confidence interval 2% to 10%]). CONCLUSION In this single EMS system, a care bundle encompassing patient positioning, apneic oxygenation, delayed sequence intubation, and goal-directed preoxygenation was associated with lower rates of peri-intubation hypoxia than standard out-of-hospital rapid sequence intubation.
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Affiliation(s)
- Jeffrey L Jarvis
- Williamson County EMS, Georgetown, TX; Department of Emergency Medicine, Baylor Scott & White Healthcare, Temple, TX.
| | | | | | - Lauren Sager
- Department of Biostatistics, Baylor Scott & White Healthcare, Temple, TX
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Gleason JM, Christian BR, Barton ED. Nasal Cannula Apneic Oxygenation Prevents Desaturation During Endotracheal Intubation: An Integrative Literature Review. West J Emerg Med 2018; 19:403-411. [PMID: 29560073 PMCID: PMC5851518 DOI: 10.5811/westjem.2017.12.34699] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 11/23/2017] [Accepted: 12/14/2017] [Indexed: 11/11/2022] Open
Abstract
Patients requiring emergency airway management may be at greater risk of acute hypoxemic events because of underlying lung pathology, high metabolic demands, insufficient respiratory drive, obesity, or the inability to protect their airway against aspiration. Emergency tracheal intubation is often required before complete information needed to assess the risk of procedural hypoxia is acquired (i.e., arterial blood gas level, hemoglobin value, or chest radiograph). During pre-oxygenation, administering high-flow nasal oxygen in addition to a non-rebreather face mask can significantly boost the effective inspired oxygen. Similarly, with the apnea created by rapid sequence intubation (RSI) procedures, the same high-flow nasal cannula can help maintain or increase oxygen saturation during efforts to secure the tube (oral intubation). Thus, the use of nasal oxygen during pre-oxygenation and continued during apnea can prevent hypoxia before and during intubation, extending safe apnea time, and improve first-pass success attempts. We conducted a literature review of nasal-cannula apneic oxygenation during intubation, focusing on two components: oxygen saturation during intubation, and oxygen desaturation time. We performed an electronic literature search from 1980 to November 2017, using PubMed, Elsevier, ScienceDirect, and EBSCO. We identified 14 studies that pointed toward the benefits of using nasal cannula during emergency intubation.
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Affiliation(s)
| | | | - Erik D. Barton
- University of California Irvine Health, Department of Emergency Medicine, Orange, California
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Kesavan R, Balakrishnan S, Rajan S, Purushothaman SS, Varghese R, Kumar L. Efficiency and Efficacy of Two Techniques of Preoxygenation during Modified Rapid Sequence Intubation. Anesth Essays Res 2018; 12:754-757. [PMID: 30283189 PMCID: PMC6157213 DOI: 10.4103/aer.aer_119_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background: Apneic mass movement of oxygen by applying continuous positive airway pressure (CPAP) is possible only when the airway is kept patent which helps to reduce the rate of desaturation. Aims: The aim of this study was to check the efficiency of preoxygenation and apneic oxygenation by assessing the drop in partial pressure of arterial oxygen (PaO2) during apnea with and without keeping an oropharyngeal airway to maintain the patency of airway. Settings and Design: This prospective observational study was conducted at a tertiary care center. Materials and Methods: Sixty patients undergoing robotic and laparoscopic-assisted surgeries requiring modified rapid sequence intubation were recruited for the study. In Group A, CPAP was not applied during preoxygenation and oropharyngeal airway was not used, but oxygen was administered at 5 L/min during the apnea. In Group B, CPAP of 5 cmH2O was maintained during preoxygenation and after induction an oropharyngeal airway was inserted. Patients in both the groups were induced and paralyzed following standardized anesthesia protocol. Statistical Analysis Used: Chi-square test, independent t-test, and ANCOVA were used as applicable. Results: Group B showed significantly higher mean PaO2 levels after preoxygenation (525.3 ± 42.5 vs. 500.8 ± 51) and at 90 s of apnea (494.8 ± 42.6 vs. 368.6 ± 98.4) as compared to Group A. The fall in PaO2 was significantly lower in Group B. The rise in partial pressure of arterial carbon dioxide was comparable in both groups. Conclusion: Preoxygenation with CPAP of 5 cmH2O followed by apneic oxygenation with CPAP keeping the airway patent with an oropharyngeal airway results in significantly higher PaO2 after preoxygenation and slower reduction in PaO2 during apnea.
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Affiliation(s)
- Rajesh Kesavan
- Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Sindhu Balakrishnan
- Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Sunil Rajan
- Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Shyam S Purushothaman
- Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Rekha Varghese
- Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Lakshmi Kumar
- Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Rajan S, Joseph N, Tosh P, Paul J, Kumar L. Effects of Preoxygenation with Tidal Volume Breathing Followed by Apneic Oxygenation with and without Continuous Positive Airway Pressure on Duration of Safe Apnea Time and Arterial Blood Gases. Anesth Essays Res 2018; 12:229-233. [PMID: 29628587 PMCID: PMC5872869 DOI: 10.4103/aer.aer_219_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Background: Application of continuous positive airway pressure (CPAP) helps to recruit collapsed areas of the lung, which improves the oxygen reserve. Aim of the Study: To compare the time to desaturate to 90% during apnea following preoxygenation and apneic ventilation with tidal volume breathing for 3 min with and without the application of CPAP. Settings and Design: This prospective randomized study was conducted in a tertiary care institution. Subjects and Methods: Twenty adult surgical patients were allocated into two groups. Group C patients were preoxygenated with 100% oxygen with CPAP of 20 cm H2O for 3 min. Group P patients were preoxygenated for 3 min without CPAP. In Group C, apneic oxygenation was initiated following induction and neuromuscular blockade with CPAP of 20 cm H2O. In Group P, no CPAP was applied. The study was terminated when the patient desaturated to 90%. Statistical Analysis Used: Chi-square test and Mann–Whitney test. Results: Group C had a significantly longer apnea time as compared to Group P (816.00 ± 30.98 vs. 348.00 ± 122.64 s). Three patients in Group P desaturated to <90% by 3 min and the remaining soon after 6 min. No patient in Group C desaturated till 12 min of apnea. PaO2 was significantly higher in Group C at 3 and 6 min of apnea. At 3 and 6 min, Group P had significantly lower saturation as compared to Group C. Conclusion: Preoxygenation with CPAP significantly delayed desaturation during apnea with significantly higher arterial partial pressure of oxygen as compared to preoxygenation without CPAP.
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Affiliation(s)
- Sunil Rajan
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Nandhini Joseph
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Pulak Tosh
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Jerry Paul
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Lakshmi Kumar
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Joseph N, Rajan S, Tosh P, Kadapamannil D, Kumar L. Comparison of Arterial Oxygenation and Acid-Base Balance with the use of Transnasal Humidified Rapid-insufflation Ventilatory Exchange versus Tidal Volume Breathing with Continuous Positive Airway Pressure for Preoxygenation and Apneic Ventilation. Anesth Essays Res 2018; 12:246-250. [PMID: 29628590 PMCID: PMC5872873 DOI: 10.4103/aer.aer_13_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background: Preoxygenation and apneic ventilation prolong apnea time without desaturation. Aims: The primary objective of this study is to compare arterial oxygenation during the periods of apnea following preoxygenation and apneic ventilation with tidal volume breathing for 3 min with continuous positive airway pressure (CPAP) versus with transnasal humidified rapid-insufflation ventilatory exchange (THRIVE). Settings and Designs: This prospective randomized study was conducted in 20 adult patients at a tertiary care institution. Subjects and Methods: Group C patients (n = 10) were preoxygenated with 100% oxygen using a face mask at a rate of 6 L/min for 3 min with CPAP of 15 cm of H2O. In Group H, oxygen was administered using THRIVE at 30 L/min for 3 min. Apneic ventilation was given in Group C with 10 L/min oxygen with CPAP of 15 cm H2O and in Group H with THRIVE at 60 L/min. The endpoint was desaturation to 90% or maximum duration of 12 min. Statistical Analysis Used: Chi-square test and Mann–Whitney test. Results: Both groups tolerated apnea for 12 min without desaturation. PaO2 in Group C was significantly higher than Group H from 3 min of apnea to 12 min. The PaCO2 was significantly lower in Group C from 6 min. The pH was comparable in both groups except at 12 min with Group H having significantly lower pH. Conclusion: Tidal volume breathing with CPAP resulted in significantly higher arterial oxygen levels than THRIVE, though both modalities were equally effective in prolonging apnea time without desaturation up to 12 min. Group C showed an added advantage of lower PaCO2 with less acidemia.
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Affiliation(s)
- Nandhini Joseph
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Sunil Rajan
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Pulak Tosh
- Department of Anaesthesiology and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Dilesh Kadapamannil
- 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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31
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Rajan S, Joseph N, Tosh P, Kadapamannil D, Paul J, Kumar L. Effectiveness of transnasal humidified rapid-insufflation ventilatory exchange versus traditional preoxygenation followed by apnoeic oxygenation in delaying desaturation during apnoea: A preliminary study. Indian J Anaesth 2018; 62:202-207. [PMID: 29643554 PMCID: PMC5881322 DOI: 10.4103/ija.ija_717_17] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background and Aims: Transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) during apnoea has shown to delay desaturation. The primary objective was to compare time to desaturate to <90% during apnoea with THRIVE versus traditional preoxygenation followed by apnoeic oxygenation. Methods: This prospective, randomised, single-blinded study was conducted in 10 adult patients presenting for direct laryngoscopy under general anaesthesia without endotracheal intubation. Group P patients were preoxygenated with 100% oxygen, and in Group H, high-flow humidified oxygen was delivered using nasal cannula for 3 min. After induction and neuromuscular blockade, time to desaturate to 90%, while receiving apnoeic oxygenation, was noted. Chi-square test and Mann–Whitney tests were used. Results: Group H had a significantly longer apnoea time as compared to Group P (796.00 ± 43.36 vs. 444.00 ± 52.56 s). All patients in Group H continued to have nearly 100% saturation even at 12 min of apnoea. However, in Group P, 80% of patients desaturated to <90% after 6 min of apnoea. Baseline blood gases, that following preoxygenation and at 3 min of apnoea time were comparable in both groups. At 6 min, Group H had a significantly higher PaO2 (295.20 ± 122.26 vs. 135.00 ± 116.78) and PaCO2 (69.46 ± 7.15 vs. 59.00 ± 4.64). Group H continued to have a PaO2 of >200 mmHg even at 12 min of apnoea with a significant rise in PaCO2 along with fall in pH after 6 min. Conclusion: During apnoeic periods time to desaturate to <90% was significantly prolonged with use of THRIVE.
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Affiliation(s)
- Sunil Rajan
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Nandhini Joseph
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Pulak Tosh
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Dilesh Kadapamannil
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Jerry Paul
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Lakshmi Kumar
- Department of Anaesthesiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Sakles JC. Maintenance of Oxygenation During Rapid Sequence Intubation in the Emergency Department. Acad Emerg Med 2017; 24:1395-1404. [PMID: 28791775 DOI: 10.1111/acem.13271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- John C. Sakles
- Department of Emergency Medicine; University of Arizona College of Medicine; Tucson AZ
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33
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Vlok R, Binks M, Melhuish T, Holyoak R, White L. What's the evidence for apnoeic oxygenation during intubation? Who, where and when. Am J Emerg Med 2017; 36:335. [PMID: 28821367 DOI: 10.1016/j.ajem.2017.07.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 07/21/2017] [Indexed: 10/19/2022] Open
Affiliation(s)
- Ruan Vlok
- Wagga Wagga Rural Referral Hospital, Australia; University of Notre Dame Australia, School of Medicine Sydney, Australia.
| | | | - Thomas Melhuish
- Wagga Wagga Rural Referral Hospital, Australia; University of New South Wales, Faculty of Medicine, Australia
| | | | - Leigh White
- Caboolture Hospital, Caboolture, QLD, Australia; University of Wollongong, NSW, Australia
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