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Downing J, Sjeklocha L. Trauma in Pregnancy. Emerg Med Clin North Am 2023; 41:223-245. [PMID: 37024160 DOI: 10.1016/j.emc.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Trauma is the leading cause of nonobstetric maternal death. Pregnant patients have a similar spectrum of traumatic injuries with a noted increase in interpersonal violence. A structured approach to trauma evaluation and management is recommended with several guidelines expanding on ATLS principles; however, evidence is limited. Optimal management requires understanding of physiologic changes in pregnancy, a team-based approach, and preparation for interventions that may including neonatal resuscitation. The principles of trauma management are the same in pregnancy with a systematic approach and initial maternal focused resuscitation..
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Affiliation(s)
- Jessica Downing
- R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, 22 South Greene Street, Baltimore, MD 21201, USA
| | - Lucas Sjeklocha
- Department of Emergency Medicine, Program in Trauma, R Adams Cowley Shock Trauma Center, University of Maryland, School of Medicine, 22 South Greene Street, Baltimore, MD 21201, USA.
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Frequency and Risk Factors for Difficult Intubation in Women Undergoing General Anesthesia for Cesarean Delivery: A Multicenter Retrospective Cohort Analysis. Anesthesiology 2022; 136:697-708. [PMID: 35188971 DOI: 10.1097/aln.0000000000004173] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Estimates for the incidence of difficult intubation in the obstetric population vary widely, though prior studies reporting rates of difficult intubation in obstetrics are older and limited by smaller samples. The goals of this study were to provide a contemporary estimate of the frequency of difficult and failed intubation in women undergoing general anesthesia for cesarean delivery and to elucidate risk factors for difficult intubation in women undergoing general anesthesia for cesarean delivery. METHODS This is a multicenter, retrospective cohort study utilizing the Multicenter Perioperative Outcomes Group database. The study population included women aged 15-44 undergoing general anesthesia for cesarean delivery between 2004 and 2019 at one of 45 medical centers. Co-primary outcomes included the frequencies of difficult and failed intubation. Difficult intubation was defined as Cormack-Lehane view ≥3, intubation attempts ≥3, rescue fiberoptic intubation, rescue supraglottic airway, or surgical airway. Failed intubation was defined as any attempt at intubation without successful endotracheal tube placement. Rates of difficult and failed intubation were assessed. Several patient demographic, anatomical, and obstetric factors were evaluated for potential associations with difficult intubation. RESULTS We identified 14,748 cases of cesarean delivery performed under general anesthesia. There were 295 cases of difficult intubation, with a frequency of 1:49 (95% CI: 1:55, 1:44) (n=14,531). There were 18 cases of failed intubation, with a frequency of 1:808 (95% CI: 1:1,276, 1:511) (n=14,537). Factors with the highest point estimates for the odds of difficult intubation included increased body mass index, Mallampati score III or IV, small hyoid to mentum distance, limited jaw protrusion, limited mouth opening, and cervical spine limitations. CONCLUSIONS In this large, multi-center, contemporary study of over 14,000 general anesthetics for cesarean delivery, we observed an overall risk of difficult intubation of 1:49 and a risk of failed intubation of 1:808. Most risk factors for difficult intubation were non-obstetric in nature. These data demonstrate that difficult intubation in obstetrics remains an ongoing concern.
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Gupta S, Pandya S, Jain K, Grewal A, Parikh K, Sharma K, Gupta A, Kasodekar S, Parameswari A, Gogoi D, Raiger L, Rao Ravindra G, Trikha A. The association of obstetric anesthesiologists, India – An expert committee consensus statement and recommendations for the management of maternal cardiac arrest. JOURNAL OF OBSTETRIC ANAESTHESIA AND CRITICAL CARE 2022. [DOI: 10.4103/joacc.joacc_44_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Law JA, Duggan LV, Asselin M, Baker P, Crosby E, Downey A, Hung OR, Jones PM, Lemay F, Noppens R, Parotto M, Preston R, Sowers N, Sparrow K, Turkstra TP, Wong DT, Kovacs G. Canadian Airway Focus Group updated consensus-based recommendations for management of the difficult airway: part 1. Difficult airway management encountered in an unconscious patient. Can J Anaesth 2021; 68:1373-1404. [PMID: 34143394 PMCID: PMC8212585 DOI: 10.1007/s12630-021-02007-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/11/2021] [Accepted: 03/14/2021] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Since the last Canadian Airway Focus Group (CAFG) guidelines were published in 2013, the literature on airway management has expanded substantially. The CAFG therefore re-convened to examine this literature and update practice recommendations. This first of two articles addresses difficulty encountered with airway management in an unconscious patient. SOURCE Canadian Airway Focus Group members, including anesthesia, emergency medicine, and critical care physicians, were assigned topics to search. Searches were run in the Medline, EMBASE, Cochrane Central Register of Controlled Trials, and CINAHL databases. Results were presented to the group and discussed during video conferences every two weeks from April 2018 to July 2020. These CAFG recommendations are based on the best available published evidence. Where high-quality evidence was lacking, statements are based on group consensus. FINDINGS AND KEY RECOMMENDATIONS Most studies comparing video laryngoscopy (VL) with direct laryngoscopy indicate a higher first attempt and overall success rate with VL, and lower complication rates. Thus, resources allowing, the CAFG now recommends use of VL with appropriately selected blade type to facilitate all tracheal intubations. If a first attempt at tracheal intubation or supraglottic airway (SGA) placement is unsuccessful, further attempts can be made as long as patient ventilation and oxygenation is maintained. Nevertheless, total attempts should be limited (to three or fewer) before declaring failure and pausing to consider "exit strategy" options. For failed intubation, exit strategy options in the still-oxygenated patient include awakening (if feasible), temporizing with an SGA, a single further attempt at tracheal intubation using a different technique, or front-of-neck airway access (FONA). Failure of tracheal intubation, face-mask ventilation, and SGA ventilation together with current or imminent hypoxemia defines a "cannot ventilate, cannot oxygenate" emergency. Neuromuscular blockade should be confirmed or established, and a single final attempt at face-mask ventilation, SGA placement, or tracheal intubation with hyper-angulated blade VL can be made, if it had not already been attempted. If ventilation remains impossible, emergency FONA should occur without delay using a scalpel-bougie-tube technique (in the adult patient). The CAFG recommends all institutions designate an individual as "airway lead" to help institute difficult airway protocols, ensure adequate training and equipment, and help with airway-related quality reviews.
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Affiliation(s)
- J. Adam Law
- grid.55602.340000 0004 1936 8200Department of Anesthesia, Pain Management and Perioperative Medicine, QEII Health Sciences Centre, Dalhousie University, Halifax Infirmary Site, 1796 Summer Street, Room 5452, Halifax, NS B3H 3A7 Canada
| | - Laura V. Duggan
- grid.28046.380000 0001 2182 2255Department of Anesthesiology and Pain Medicine, The Ottawa Hospital Civic Campus, University of Ottawa, Room B307, 1053 Carling Avenue, Mail Stop 249, Ottawa, ON K1Y 4E9 Canada
| | - Mathieu Asselin
- grid.23856.3a0000 0004 1936 8390Département d’anesthésiologie et de soins intensifs, Université Laval, 2325 rue de l’Université, Québec, QC G1V 0A6 Canada ,grid.411081.d0000 0000 9471 1794Département d’anesthésie du CHU de Québec, Hôpital Enfant-Jésus, 1401 18e rue, Québec, QC G1J 1Z4 Canada
| | - Paul Baker
- grid.9654.e0000 0004 0372 3343Department of Anaesthesiology, Faculty of Medical and Health Science, University of Auckland, Private Bag 92019, Auckland, 1142 New Zealand
| | - Edward Crosby
- grid.28046.380000 0001 2182 2255Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, University of Ottawa, Suite CCW1401, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada
| | - Andrew Downey
- grid.1055.10000000403978434Department of Anaesthesia, Perioperative and Pain Medicine, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Orlando R. Hung
- grid.55602.340000 0004 1936 8200Department of Anesthesia, Pain Management and Perioperative Medicine, QEII Health Sciences Centre, Dalhousie University, 1796 Summer Street, Halifax, NS B3H 3A7 Canada
| | - Philip M. Jones
- grid.39381.300000 0004 1936 8884Department of Anesthesia & Perioperative Medicine, Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, University of Western Ontario, LHSC- University Hospital, 339 Windermere Rd., London, ON N6A 5A5 Canada
| | - François Lemay
- grid.417661.30000 0001 2190 0479Département d’anesthésiologie, CHU de Québec – Université Laval, Hôtel-Dieu de Québec, 11, Côte du Palais, Québec, QC G1R 2J6 Canada
| | - Rudiger Noppens
- grid.39381.300000 0004 1936 8884Department of Anesthesia & Perioperative Medicine, Schulich School of Medicine & Dentistry, University of Western Ontario, LHSC- University Hospital, 339 Windermere Road, London, ON N6A 5A5 Canada
| | - Matteo Parotto
- grid.17063.330000 0001 2157 2938Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto General Hospital, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Interdepartmental Division of Critical Care Medicine, University of Toronto, EN 442 200 Elizabeth St, Toronto, ON M5G 2C4 Canada
| | - Roanne Preston
- grid.413264.60000 0000 9878 6515Department of Anesthesia, BC Women’s Hospital, 4500 Oak Street, Vancouver, BC V6H 3N1 Canada
| | - Nick Sowers
- grid.55602.340000 0004 1936 8200Department of Emergency Medicine, QEII Health Sciences Centre, Dalhousie University, 1796 Summer Street, Halifax, NS B3H 3A7 Canada
| | - Kathryn Sparrow
- grid.25055.370000 0000 9130 6822Discipline of Anesthesia, St. Clare’s Mercy Hospital, Memorial University of Newfoundland, 300 Prince Phillip Drive, St. John’s, NL A1B V6 Canada
| | - Timothy P. Turkstra
- grid.39381.300000 0004 1936 8884Department of Anesthesia & Perioperative Medicine, Schulich School of Medicine & Dentistry, University of Western Ontario, LHSC- University Hospital, 339 Windermere Road, London, ON N6A 5A5 Canada
| | - David T. Wong
- grid.17063.330000 0001 2157 2938Department of Anesthesia, Toronto Western Hospital, University Health Network, University of Toronto, 399, Bathurst St, Toronto, ON M5T2S8 Canada
| | - George Kovacs
- grid.55602.340000 0004 1936 8200Department of Emergency Medicine, QEII Health Sciences Centre, Dalhousie University, 1796 Summer Street, Halifax, NS B3H 3A7 Canada
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