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Snavely C, Chan C. Resuscitation of the Obstetric Patient. Emerg Med Clin North Am 2023; 41:323-335. [PMID: 37024167 DOI: 10.1016/j.emc.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Pregnancy is a time of tremendous physiologic change and vulnerability. At any point, symptoms and complications can prompt the need for emergency care, and these can range from minor to life-threatening. Emergency physicians must be prepared to treat any of these complications, in addition to rescucitating the critically ill and injured pregnant patient. To optimally care for these patients, it is paramount to be aware of the unique physiologic changes that occur during pregnancy. The focus of this review is to discuss illnesses unique to pregnancy and additional aspects of resuscitation that must be considered when caring for a critically ill pregnant patient.
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Affiliation(s)
- Cheyenne Snavely
- Department of Medicine, University of Maryland Medical Center, 110 South Paca Street, 6th Floor, Suite 200, Baltimore, MD 21201, USA.
| | - Caleb Chan
- Department of Medicine, University of Maryland Medical Center, 110 South Paca Street, 6th Floor, Suite 200, Baltimore, MD 21201, USA; Department of Emergency Medicine, University of Maryland School of Medicine, 110 South Paca Street, 6th Floor, Suite 200, Baltimore, MD 21201, USA
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Odor PM, Bampoe S, Moonesinghe SR, Andrade J, Pandit JJ, Lucas DN. General anaesthetic and airway management practice for obstetric surgery in England: a prospective, multicentre observational study. Anaesthesia 2020; 76:460-471. [PMID: 32959372 DOI: 10.1111/anae.15250] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2020] [Indexed: 02/06/2023]
Abstract
There are no current descriptions of general anaesthesia characteristics for obstetric surgery, despite recent changes to patient baseline characteristics and airway management guidelines. This analysis of data from the direct reporting of awareness in maternity patients' (DREAMY) study of accidental awareness during obstetric anaesthesia aimed to describe practice for obstetric general anaesthesia in England and compare with earlier surveys and best-practice recommendations. Consenting patients who received general anaesthesia for obstetric surgery in 72 hospitals from May 2017 to August 2018 were included. Baseline characteristics, airway management, anaesthetic techniques and major complications were collected. Descriptive analysis, binary logistic regression modelling and comparisons with earlier data were conducted. Data were collected from 3117 procedures, including 2554 (81.9%) caesarean deliveries. Thiopental was the induction drug in 1649 (52.9%) patients, compared with propofol in 1419 (45.5%). Suxamethonium was the neuromuscular blocking drug for tracheal intubation in 2631 (86.1%), compared with rocuronium in 367 (11.8%). Difficult tracheal intubation was reported in 1 in 19 (95%CI 1 in 16-22) and failed intubation in 1 in 312 (95%CI 1 in 169-667). Obese patients were over-represented compared with national baselines and associated with difficult, but not failed intubation. There was more evidence of change in practice for induction drugs (increased use of propofol) than neuromuscular blocking drugs (suxamethonium remains the most popular). There was evidence of improvement in practice, with increased monitoring and reversal of neuromuscular blockade (although this remains suboptimal). Despite a high risk of difficult intubation in this population, videolaryngoscopy was rarely used (1.9%).
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Affiliation(s)
- P M Odor
- Centre for Peri-operative Medicine, Research Department for Targeted Intervention, University College London Hospital, London, UK
| | - S Bampoe
- Centre for Peri-operative Medicine, Research Department for Targeted Intervention, University College London Hospital, London, UK
| | - S R Moonesinghe
- Centre for Peri-operative Medicine, Research Department for Targeted Intervention, University College London Hospital, London, UK
| | - J Andrade
- School of Psychology, University of Plymouth, Plymouth, UK
| | - J J Pandit
- Nuffield Department of Anaesthetics, Oxford University Hospitals NHS Trust, Oxford, UK
| | - D N Lucas
- Department of Anaesthesia, Northwick Park Hospital, London, UK
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Bonnet MP, Mercier FJ, Vicaut E, Galand A, Keita H, Baillard C. Incidence and risk factors for maternal hypoxaemia during induction of general anaesthesia for non-elective Caesarean section: a prospective multicentre study. Br J Anaesth 2020; 125:e81-e87. [PMID: 32303378 DOI: 10.1016/j.bja.2020.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/04/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Pregnant women are at increased risk of hypoxaemia during general anaesthesia. Our aim was to determine the incidence and the risk factors that contribute to hypoxaemia in this setting. METHODS Every woman 18 yr or older who underwent a non-elective Caesarean section under general anaesthesia was eligible to participate in this multicentre observational study. The primary endpoint was the incidence of hypoxaemia defined as the SpO2 ≤95%. The secondary endpoint was the incidence of difficult intubation defined as more than two attempts or failed intubation. RESULTS During the study period, 895 women were prospectively included in 17 maternity hospitals, accounting for 79% of women who had general anaesthesia for non-elective Caesarean section. Maternal hypoxaemia was observed in 172 women (19%; confidence interval [CI], 17-22%). Risk factors associated with hypoxaemia in the multivariate analysis were difficult or failed intubation (adjusted odds ratio [aOR]=19.1 [8.6-42.7], P<0.0001) and BMI >35 kg m-2 (aOR=0.53 [0.28-0.998], P=0.0495). Intubation was difficult in 40 women (4.5%; CI, 3.3-6%) and failed intubation occurred in five women (0.56%; CI, 0.1-1%). In the multivariate analysis, use of a hypnotic drug other than propofol was associated with difficult or failed intubation (aOR=25 [2-391], P=0.02). A propensity score confirmed that propofol was associated with a significant decreased risk of difficulty or failure to intubate (P<0.001). CONCLUSIONS Hypoxaemia during Caesarean sections was observed in 19% of women and was significantly associated with difficult or failed intubation. The use of propofol may protect against the occurrence of difficult intubation.
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Affiliation(s)
- Marie-Pierre Bonnet
- Department of Anaesthesiology and Critical Care, Armand Trousseau University Hospital, Assistance Publique-Hôpitaux de Paris, France; Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), Université de Paris, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, INSERM INRA, Paris, France; Department of Anaesthesiology and Critical Care, Cochin-Port Royal University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Frédéric J Mercier
- Department of Anaesthesiology, Antoine Béclère University Hospital, Paris-Saclay University, Assistance Publique-Hôpitaux de Paris, Clamart, France
| | - Eric Vicaut
- Unité de Recherche Clinique, Lariboisière University Hospital, Paris 7 Diderot University, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Anne Galand
- Department of Anaesthesiology and Critical Care, Cochin-Port Royal University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Hawa Keita
- Department of Anaesthesiology and Critical Care, Necker University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France; Unité de Recherche EA 7323 Pharmacologie et Evaluation des Thérapeutiques hez l'Enfant et la Femme Enceinte, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Christophe Baillard
- Department of Anaesthesiology and Critical Care, Cochin-Port Royal University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.
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Houthoff Khemlani K, Weibel S, Kranke P, Schreiber JU. Hypnotic agents for induction of general anesthesia in cesarean section patients: A systematic review and meta-analysis of randomized controlled trials. J Clin Anesth 2018; 48:73-80. [DOI: 10.1016/j.jclinane.2018.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/29/2018] [Accepted: 04/26/2018] [Indexed: 11/29/2022]
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A survey of practice of rapid sequence induction for caesarean section in England. Int J Obstet Anesth 2018; 36:3-10. [PMID: 30392651 DOI: 10.1016/j.ijoa.2018.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 05/03/2018] [Accepted: 05/27/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND In view of newer techniques of preoxygenation and laryngoscopy and recent obstetric guidelines concerning the management of difficult intubation, we aimed to evaluate the current practice of rapid sequence induction for caesarean section in England. METHODS In 2017, 316 questionnaire surveys were posted to all 158 hospitals with caesarean section capabilities in England. At each hospital, one questionnaire was to be completed by the obstetric anaesthetic consultant lead and one by an anaesthetic trainee. Differences in responses between consultants and trainees, regardless of their place of work, were compared for all data using the chi-square and the Fisher's exact tests. RESULTS One-hundred-and-eighty complete questionnaires were returned, with an overall response rate of 57%, 98 (54%) from obstetric anaesthetic consultant leads and 82 (45.6%) from trainees). Both head up (57%) and ramped (56%) were the preferred positions for preoxygenation. Less than half of respondents (43%) preoxygenated until the surgeon was scrubbed. Cricoid pressure was used by almost all respondents (98%). Thiopentone (67%) was the most commonly chosen anaesthetic induction agent and most respondents (82%) supported a change to the use of propofol. Suxamethonium (92%) was the neuromuscular blocker of choice but more than half the respondents (52%) supported a change to rocuronium. In the event of a failed intubation, the rescue supraglottic airway device of choice was the i-gel® (65%). CONCLUSIONS Our survey demonstrated the significant variation in the practice of rapid sequence induction for caesarean section in obstetrics in the United Kingdom.
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Dumps C, Halbeck E, Bolkenius D. Medikamente zur intravenösen Narkoseinduktion: Barbiturate. Anaesthesist 2018; 67:535-552. [DOI: 10.1007/s00101-018-0440-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Polin CM, Hambright AA, McConville PO. Anesthesia for Cesarean Delivery. Anesthesiology 2018. [DOI: 10.1007/978-3-319-74766-8_51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Desai N, Carvalho B. General anaesthesia for caesarean section: is the end in sight for thiopental? Br J Hosp Med (Lond) 2017; 78:358. [DOI: 10.12968/hmed.2017.78.6.358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Neel Desai
- Specialist Registrar in Anaesthetics, Department of Anaesthetics, Royal Free Hospital, London NW3 2QG
| | - Brendan Carvalho
- Professor, Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, USA
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Mushambi MC, Kinsella SM, Popat M, Swales H, Ramaswamy KK, Winton AL, Quinn AC. Obstetric Anaesthetists' Association and Difficult Airway Society guidelines for the management of difficult and failed tracheal intubation in obstetrics. Anaesthesia 2016; 70:1286-306. [PMID: 26449292 PMCID: PMC4606761 DOI: 10.1111/anae.13260] [Citation(s) in RCA: 298] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2015] [Indexed: 12/16/2022]
Abstract
The Obstetric Anaesthetists' Association and Difficult Airway Society have developed the first national obstetric guidelines for the safe management of difficult and failed tracheal intubation during general anaesthesia. They comprise four algorithms and two tables. A master algorithm provides an overview. Algorithm 1 gives a framework on how to optimise a safe general anaesthetic technique in the obstetric patient, and emphasises: planning and multidisciplinary communication; how to prevent the rapid oxygen desaturation seen in pregnant women by advocating nasal oxygenation and mask ventilation immediately after induction; limiting intubation attempts to two; and consideration of early release of cricoid pressure if difficulties are encountered. Algorithm 2 summarises the management after declaring failed tracheal intubation with clear decision points, and encourages early insertion of a (preferably second-generation) supraglottic airway device if appropriate. Algorithm 3 covers the management of the 'can't intubate, can't oxygenate' situation and emergency front-of-neck airway access, including the necessity for timely perimortem caesarean section if maternal oxygenation cannot be achieved. Table 1 gives a structure for assessing the individual factors relevant in the decision to awaken or proceed should intubation fail, which include: urgency related to maternal or fetal factors; seniority of the anaesthetist; obesity of the patient; surgical complexity; aspiration risk; potential difficulty with provision of alternative anaesthesia; and post-induction airway device and airway patency. This decision should be considered by the team in advance of performing a general anaesthetic to make a provisional plan should failed intubation occur. The table is also intended to be used as a teaching tool to facilitate discussion and learning regarding the complex nature of decision-making when faced with a failed intubation. Table 2 gives practical considerations of how to awaken or proceed with surgery. The background paper covers recommendations on drugs, new equipment, teaching and training.
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Affiliation(s)
- M C Mushambi
- Department of Anaesthesia, Leicester Royal Infirmary, Leicester, UK
| | - S M Kinsella
- Department of Anaesthesia, St Michael's Hospital, Bristol, UK
| | - M Popat
- Nuffield Department of Anaesthesia, Oxford University Hospital NHS Trust, Oxford, UK
| | - H Swales
- Department of Anaesthesia, University Hospitals Southampton Foundation Trust, Southampton, UK
| | - K K Ramaswamy
- Department of Anaesthesia, Northampton General Hospital, Northampton, UK
| | - A L Winton
- Department of Anaesthesia, St Michael's Hospital, Bristol, UK
| | - A C Quinn
- Department of Anaesthesia, James Cook University Hospital, Middlesborough, UK.,Leeds University, Leeds, UK
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Podder S, Kumar A, Mahajan S, Saha PK. Initial non-opioid based anesthesia in a parturient having severe aortic stenosis undergoing cesarean section with aortic valve replacement. Ann Card Anaesth 2015; 18:98-100. [PMID: 25566720 PMCID: PMC4900321 DOI: 10.4103/0971-9784.148330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Pregnancy in presence of severe aortic stenosis (AS) causes worsening of symptoms needing further intervention. In the advanced stages of pregnancy, some patients may even require aortic valve replacement (AVR) and cesarean delivery in the same sitting. Opioid based general anesthesia for combined lower segment cesarean section (LSCS) with AVR has been described. However, the use of opioid may lead to fetal morbidity and need of respiratory support for the baby. We describe successful anesthetic management for LSCS with AVR in a >33 week gravida with severe AS and congestive heart failure. We avoided opioids till delivery of the baby AVR; the delivered neonate showed a normal APGAR score.
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Affiliation(s)
| | - Ajay Kumar
- Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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MBRRACE-UK: Saving Lives, Improving Mothers' Care – implications for anaesthetists. Int J Obstet Anesth 2015; 24:161-73. [DOI: 10.1016/j.ijoa.2015.03.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 03/08/2015] [Indexed: 11/23/2022]
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Lucas DN, Yentis SM. Unsettled weather and the end for thiopental? Obstetric general anaesthesia after the NAP5 and MBRRACE-UK reports. Anaesthesia 2015; 70:375-9. [DOI: 10.1111/anae.13034] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- D. N. Lucas
- Northwick Park Hospital; Harrow Middlesex UK
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Affiliation(s)
- Yusuke Mazda
- Saitama Medical Center, Saitama Medical University; Division of Obstetric Anesthesia, Department of Anesthesiology; 1981 Kamoda Kawagoe Saitama Japan 350-8550
| | - Erika Ota
- National Center for Child Health and Development; Department of Health Policy; 2-10-1 Okura, Setagaya-ku Tokyo Japan 157-8535
| | - Rintaro Mori
- National Center for Child Health and Development; Department of Health Policy; 2-10-1 Okura, Setagaya-ku Tokyo Japan 157-8535
| | - Katsuo Terui
- Saitama Medical Center, Saitama Medical University; Division of Obstetric Anesthesia, Department of Anesthesiology; 1981 Kamoda Kawagoe Saitama Japan 350-8550
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Cesarean delivery under general anesthesia: Continuing Professional Development. Can J Anaesth 2014; 61:489-503. [DOI: 10.1007/s12630-014-0125-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 02/13/2014] [Indexed: 12/15/2022] Open
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