Vía aérea en la paciente obstétrica: estrategia de manejo

Kacmar R, Gaiser R. Physiologic Changes of Pregnancy. Chestnut’s Obstetric Anesthesia: Principles and Practice. Sixth Edition. Elsevier; 2020. p. 13–37. https://doi.org/10.1016/B978-0-323-05541-3.00002-8

Munnur U, De Boisblanc B, Suresh MS. Airway problems in pregnancy. Crit Care Med 2005;33. https://doi.org/10.1097/01.CCM.0000183502.45419.C9

Ejikeme C, Nandakumar V, Gotur D. Respiratory physiological changes in pregnancy 2025. https://doi.org/10.1016/j.rmed.2025.108245

Achu RA, Reale SC. Airway Management in Pregnancy. Curr Anesthesiol Rep 2023;13:83–9. https://doi.org/10.1007/s40140-023-00556-2

Pilkington S, Carli F, Dakin MJ, Romney M, De Witt KA, Dore CJ, et al. Increase in Mallampati score during pregnancy. Br J Anaesth 1995;74:638–42. https://doi.org/10.1093/bja/74.6.638

Aydas AD, Basaranoglu G, Ozdemir H, Dooply SLS, Muhammedoglu N, Kucuk S, et al. Airway changes in pregnant women before and after delivery. Ir J Med Sci 2015;184:431–3. https://doi.org/10.1007/s11845-014-1138-8

Kurdi M, Theerth KA, Sutagatti JG, Ananthathirtha K. Assessment of Airway Changes During Pregnancy With Ultrasonography and Clinical Airway Screening Tests: A Prospective Observational Study n.d. https://doi.org/10.7759/cureus.83938

Kodali BS, Chandrasekhar S, Bulich LN, Topulos GP, Datta S. Airway changes during labor and delivery. Anesthesiology 2008;108:357–62. https://doi.org/10.1097/ALN.0b013e31816452d3

Contreras G, Gutierrez M, Beroiza T, Fantin A, Oddo H, Villarroel L, et al. Ventilatory drive and respiratory muscle function in pregnancy. Am Rev Respir Dis 1991;144:837–41. https://doi.org/10.1164/ajrccm/144.4.837

García Río F, Pino García JM, Alvarez-Sala R, Díaz Lobato S, Casadevall J, Villasante C. Adaptación respiratoria durante el embarazo. Arch Bronconeumol 1995;31:172–80. https://doi.org/10.1016/S0300-2896(15)30945-5

Lomauro A, Aliverti A. Respiratory physiology of pregnancy Physiology masterclass n.d. https://doi.org/10.1183/20734735.008615

Archer GW, Marx GF. Arterial oxygen tension during apnoea in parturient women. Br J Anaesth 1974;46:358–60. https://doi.org/10.1093/bja/46.5.358

Hawkins JL, Chang J, Palmer SK, Gibbs CP, Callaghan WM. Anesthesia-related maternal mortality in the United States: 1979-2002. Obstetrics and Gynecology 2011;117:69–74. https://doi.org/10.1097/AOG.0b013e31820093a9

Sobhy S, Zamora J, Dharmarajah K, Arroyo-Manzano D, Wilson M, Navaratnarajah R, et al. Anaesthesia-related maternal mortality in low-income and middle-income countries: A systematic review and meta-analysis. Lancet Glob Health 2016;4:e320–7. https://doi.org/10.1016/S2214-109X(16)30003-1

Cook TM, Woodall N, Frerk C. Major complications of airway management in the UK: Results of the Fourth National Audit Project of the Royal College of Anaesthetists and the Difficult Airway Society. Part 1: Anaesthesia. Br J Anaesth 2011;106:617–31. https://doi.org/10.1093/bja/aer058

Lee YL, Leanne Lim M, Ling Leong W, Lew E. Difficult and failed intubation in Caesarean general anaesthesia: a four-year retrospective review. Singapore Med J 2022;63:152–6. https://doi.org/10.11622/smedj.2020118

McKeen DM, George RB, O’Connell CM, Allen VM, Yazer M, Wilson M, et al. Difficult and failed intubation: Incident rates and maternal, obstetrical, and anesthetic predictors. Can J Anaesth 2011;58:514–24. https://doi.org/10.1007/s12630-011-9491-9

Reale SC, Bauer ME, Klumpner TT, Aziz MF, Fields KG, Hurwitz R, et al. 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. https://doi.org/10.1097/ALN.0000000000004173

Odor PM, Bampoe S, Moonesinghe SR, Andrade J, Pandit JJ, Lucas DN, et al. General anaesthetic and airway management practice for obstetric surgery in England: a prospective, multicentre observational study. Anaesthesia 2021;76:460–71. https://doi.org/10.1111/anae.15250

Kinsella SM, Winton AL, Mushambi MC, Ramaswamy K, Swales H, Quinn AC, et al. Failed tracheal intubation during obstetric general anaesthesia: a literature review. Int J Obstet Anesth 2015;24:356–74. https://doi.org/10.1016/j.ijoa.2015.06.008

Šklebar I, Habek D, Berić S, Goranović T. AIRWAY MANAGEMENT GUIDELINES IN OBSTETRICS. Acta Clin Croat 2023;62:85–90. https://doi.org/10.20471/acc.2023.62.s1.10

Choura D, Abid A, Elleuch S, Jarraya A, Abida H, Abdelmoula M, et al. Assessing the efficiency of different preoperative difficult intubation tests on patients undergoing caesarean section. Reg Anesth Pain Med 2018;43:e69.

Moslemi F, Khan ZH, Alizadeh E, Khamnian Z, Eftekhar N, Hosseini MS, et al. Upper lip bite test compared to modified Mallampati test in predicting difficult airway in obstetrics: A prospective observational study. J Perioper Pract 2023;33:116–21. https://doi.org/10.1177/17504589211045231

Yıldırım İ, İnal MT, Memiş D, Turan FN. Determining the Efficiency of Different Preoperative Difficult Intubation Tests on Patients Undergoing Caesarean Section. Balkan Med J 2017;34:436. https://doi.org/10.4274/balkanmedj.2016.0877

Allahyary E, Ghaemei S, Azemati S. Comparison of six methods for predicting difficult intubation in obstetric patients. Iranian Red Crescent Medical Journal (IRCMJ) 2024;10:1–8.

Honarmand A, Safavi MR. Prediction of difficult laryngoscopy in obstetric patients scheduled for Caesarean delivery. Eur J Anaesthesiol 2008;25:714–20. https://doi.org/10.1017/S026502150800433X

Merah NA, Foulkes-Crabbe DJO, Kushimo OT, Ajayi PA. Prediction of difficult laryngoscopy in a population of Nigerian obstetric patients. West Afr J Med 2004;23:38–41. https://doi.org/10.4314/wajm.v23i1.28079

Ramadhani SAL, Mohamed LA, Rocke DA, Gouws E. Sternomental distance as the sole predictor of difficult laryngoscopy in obstetric anaesthesia. Br J Anaesth 1996;77:312–6. https://doi.org/10.1093/bja/77.3.312

Mushambi MC, Kinsella SM, Popat M, Swales H, Ramaswamy KK, Winton AL, et al. Obstetric Anaesthetists’ Association and Difficult Airway Society guidelines for the management of difficult and failed tracheal intubation in obstetrics. Anaesthesia 2015;70:1286–306. https://doi.org/10.1111/anae.13260

Bordoni L, Parsons K, Rucklidge M. Obstetric airway management 2019. https://doi.org/10.1029/WFSA-D-18-00019.

Singhal S, Kaur K, Yadav P. A study to evaluate the role of experience in acquisition of the skill of orotracheal intubation in adults. J Anaesthesiol Clin Pharmacol 2021;37:469–74. https://doi.org/10.4103/joacp.JOACP_133_19

Stopar Pintarič T. Videolaryngoscopy as a primary intubation modality in obstetrics: A narrative review of current evidence. Biomolecules & Biomedicine 2023;23:949–55. https://doi.org/10.17305/bb.2023.9154

Howle R, Onwochei D, Harrison SL, Desai N. Comparison of videolaryngoscopy and direct laryngoscopy for tracheal intubation in obstetrics: a mixed-methods systematic review and meta-analysis. Can J Anaesth 2021;68:546–65. https://doi.org/10.1007/s12630-020-01908-w

Aziz MF, Kim D, Mako J, Hand K, Brambrink AM. A retrospective study of the performance of video laryngoscopy in an obstetric unit. Anesth Analg 2012;115:904–6. https://doi.org/10.1213/ANE.0b013e3182642130

Mclenachan J, Alexander N, Theodosiou K, Zhang C, McNarry A. McGrath MAC. Videolaryngoscope use in a tertiary obstetric unit. Trends in Anaesthesia and Critical Care 2020;30:e106. https://doi.org/10.1016/j.tacc.2019.12.262

Burger A, Smit MI, van Dyk D, Reed AR, Dyer RA, Hofmeyr R. Predictors of difficult tracheal intubation during general anaesthesia: an analysis of an obstetric airway management registry. Southern African Journal of Anaesthesia and Analgesia 2022;28:178–83. https://doi.org/10.36303/SAJAA.2022.28.5.2829

Metodiev Y, Mushambi M. The role of supraglottic airway devices in obstetric anaesthesia. Curr Opin Anaesthesiol 2023;36:276–80. https://doi.org/10.1097/ACO.0000000000001241

Sanganee U, Jansen K, Lucas N, Van De Velde M. The role of supraglottic airway devices for caesarean section under general anaesthesia. A scoping literature review with a proposed algorithm for the appropriate use of supraglottic airway devices for caesarean sections. Eur J Anaesthesiol 2024;41:668–76. https://doi.org/10.1097/EJA.0000000000002024

Ramachandran SK, Mathis MR, Tremper KK, Shanks AM, Kheterpal S. Predictors and Clinical Outcomes from Failed Laryngeal Mask Airway UniqueTMA Study of 15,795 Patients. Anesthesiology 2012;116:1217–26. https://doi.org/10.1097/ALN.0b013e318255e6ab

Macfie AG, Magides AD, Richmond MN, Reilly CS. Gastric emptying in pregnancy. Br J Anaesth 1991;67:54–7. https://doi.org/10.1093/bja/67.1.54

Scrutton MJL, Metcalfe GA, Lowy C, Seed PT, O’Sullivan G. Eating in labour. A randomised controlled trial assessing the risks and benefits. Anaesthesia 1999;54:329–34. https://doi.org/10.1046/j.1365-2044.1999.00750.x

Wilson RD, Caughey AB, Wood SL, Macones GA, Wrench IJ, Huang J, et al. Guidelines for Antenatal and Preoperative care in Cesarean Delivery: Enhanced Recovery After Surgery Society Recommendations (Part 1). Am J Obstet Gynecol 2018;219:523.e1-523.e15. https://doi.org/10.1016/j.ajog.2018.09.015

Paranjothy S, Griffiths JD, Broughton HK, Gyte GML, Brown HC, Thomas J. Interventions at caesarean section for reducing the risk of aspiration pneumonitis. Cochrane Database Syst Rev 2014;2014. https://doi.org/10.1002/14651858.CD004943.pub4

Hailu S, Mekonen S, Shiferaw A. Prevention and management of postoperative nausea and vomiting after cesarean section: A systematic literature review. Ann Med Surg (Lond) 2022;75. https://doi.org/10.1016/j.amsu.2022.103433

Apfelbaum JL, Hawkins JL, Agarkar M, Bucklin BA, Connis RT, Gambling DR, et al. Practice Guidelines for Obstetric Anesthesia. An Updated Report by the American Society of Anesthesiologists Task Force on Obstetric Anesthesia and the Society for Obstetric Anesthesia and Perinatology. Anesthesiology 2016;124:270–300. https://doi.org/10.1097/ALN.0000000000000935

Panchal AR, Bartos JA, Cabañas JG, Donnino MW, Drennan IR, Hirsch KG, et al. Part 3: Adult Basic and Advanced Life Support: 2020 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation 2020;142:S366–468. https://doi.org/10.1161/CIR.0000000000000916

Hignett R, Fernando R, McGlennan A, McDonald S, Stewart A, Columb M, et al. A randomized crossover study to determine the effect of a 30° head-up versus a supine position on the functional residual capacity of term parturients. Anesth Analg 2011;113:1098–102. https://doi.org/10.1213/ANE.0b013e31822bf1d2

Lee BJ, Kang JM, Kim DO. Laryngeal exposure during laryngoscopy is better in the 25 degrees back-up position than in the supine position. Br J Anaesth 2007;99:581–6. https://doi.org/10.1093/bja/aem095

Reddy RM, Adke M, Patil P, Kosheleva I, Ridley S, Agarwal S, et al. Comparison of glottic views and intubation times in the supine and 25 degree back-up positions. BMC Anesthesiol 2016;16. https://doi.org/10.1186/s12871-016-0280-4

McClelland SH, Bogod DG, Hardman JG. Pre-oxygenation in pregnancy: an investigation using physiological modelling. Anaesthesia 2008;63:259–63. https://doi.org/10.1111/j.1365-2044.2007.05346.x

Russell GN, Smith CL, Snowdon SL, Bryson THL. Pre-oxygenation and the parturient patient. Anaesthesia 1987;42:346–51. https://doi.org/10.1111/j.1365-2044.1987.tb03972.x

Chiron B, Laffon M, Ferrandiere M, Pittet JF, Marret H, Mercier C. Standard preoxygenation technique versus two rapid techniques in pregnant patients. Int J Obstet Anesth 2004;13:11–4. https://doi.org/10.1016/S0959-289X(03)00095-5

Kocakulak D, Küçükosman G, Köksal BG, Baytar Ç, Okyay RD, Bollucuoğlu K, et al. Investigation of preoxygenation methods in cesarean surgeries with the oxygen reserve index. Saudi Med J 2022;43:1317–23. https://doi.org/10.15537/smj.2022.43.12.20220548

Singh A, Dhir A, Jain K, Trikha A. Role of High Flow Nasal Cannula (HFNC) for Pre-Oxygenation Among Pregnant Patients. Journal of Obstetric Anaesthesia and Critical Care 2022;12:99–104. https://doi.org/10.4103/JOACC.JOACC_18_22

Tan PCF, Peyton PJ, Deane A, Unterscheider J, Dennis AT. Pre-oxygenation using high flow humidified nasal oxygen or face mask oxygen in pregnant people – a prospective randomised controlled crossover non-inferiority study (The HINOP2 study). Int J Obstet Anesth 2024. https://doi.org/10.1016/j.ijoa.2024.104236

Zhou S, Zhou Y, Cao X, Ni X, Du W, Xu Z, et al. The efficacy of high flow nasal oxygenation for maintaining maternal oxygenation during rapid sequence induction in pregnancy: A prospective randomised clinical trial. Eur J Anaesthesiol 2021;38:1052–8. https://doi.org/10.1097/EJA.0000000000001395

Ellis R, Laviola M, Stolady D, Valentine RL, Pillai A, Hardman JG. Comparison of apnoeic oxygen techniques in term pregnant subjects: a computational modelling study. Br J Anaesth 2022;129:581–7. https://doi.org/10.1016/j.bja.2022.06.021

Sellick BA. Cricoid pressure to control regurgitation of stomach contents during induction of anaesthesia. Lancet 1961;2:404–6. https://doi.org/10.1016/S0140-6736(61)92485-0

VANNER RG, PRYLE BJ. Regurgitation and oesophageal rupture with cricoid pressure: a cActaver study. Anaesthesia 1992;47:732–5. https://doi.org/10.1111/j.1365-2044.1992.tb03248.x

Mittal G, Jain D, Mahajan S, Puri GD, Singh J, Kumar A. Does Cricoid Pressure Increase the Laryngoscopy Force During Rapid Sequence Induction?-A Randomized Study. Turk J Anaesthesiol Reanim 2023;51:10–5. https://doi.org/10.5152/TJAR.2022.21166

Birenbaum A, Hajage D, Roche S, Ntouba A, Eurin M, Cuvillon P, et al. Effect of Cricoid Pressure Compared With a Sham Procedure in the Rapid Sequence Induction of Anesthesia: The IRIS Randomized Clinical Trial. JAMA Surg 2019;154:9–17. https://doi.org/10.1001/jamasurg.2018.3577

Hung KC, Hung CT, Poon YY, Wu SC, Chen KH, Chen JY, et al. The effect of cricoid pressure on tracheal intubation in adult patients: a systematic review and meta-analysis. Can J Anaesth 2021;68:137–47. https://doi.org/10.1007/s12630-020-01830-1

Desai N, Wicker J, Sajayan A, Mendonca C. A survey of practice of rapid sequence induction for caesarean section in England. Int J Obstet Anesth 2018;36:3–10. https://doi.org/10.1016/j.ijoa.2018.05.008

Gupta M, Jain D, Jain K, Gandhi K, Arora A. Non-inferiority randomized controlled trial comparing CricOid pressure and para-laryngeal pressure in parturients undergoing cesarean delivery: NiCOP trial. Int J Obstet Anesth 2024;59. https://doi.org/10.1016/j.ijoa.2024.103997

Gautier N, Danklou J, Brichant JF, Lopez AM, Vandepitte C, Kuroda MM, et al. The effect of force applied to the left paratracheal oesophagus on air entry into the gastric antrum during positive-pressure ventilation using a facemask. Anaesthesia 2019;74:22–8. https://doi.org/10.1111/anae.14442

Murdoch H, Scrutton M, Laxton CH. Choice of anaesthetic agents for caesarean section: A UK survey of current practice. Int J Obstet Anesth 2013;22:31–5. https://doi.org/10.1016/j.ijoa.2012.09.001

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. https://doi.org/10.1016/j.jclinane.2018.04.010

Noskova P, Blaha J, Bakhouche H, Kubatova J, Ulrichova J, Marusicova P, et al. Neonatal effect of remifentanil in general anaesthesia for caesarean section: A randomized trial. BMC Anesthesiol 2015;15:1–7. https://doi.org/10.1186/s12871-015-0020-1

Yoo KY, Jeong CW, Park BY, Kim SJ, Jeong ST, Shin MH, et al. Effects of remifentanil on cardiovascular and bispectral index responses to endotracheal intubation in severe pre-eclamptic patients undergoing Caesarean delivery under general anaesthesia. Br J Anaesth 2009;102:812–9. https://doi.org/10.1093/bja/aep099

Park BY, Jeong CW, Jang EA, Kim SJ, Jeong ST, Shin MH, et al. Dose-related attenuation of cardiovascular responses to tracheal intubation by intravenous remifentanil bolus in severe pre-eclamptic patients undergoing Caesarean delivery. Br J Anaesth 2011;106:82–7. https://doi.org/10.1093/bja/aeq275

Pournajafian A, Rokhtabnak F, Kholdbarin A, Ghodrati M, Ghavam S. Comparison of remifentanil and fentanyl regarding hemodynamic changes due to endotracheal intubation in preeclamptic parturient candidate for cesarean delivery. Anesth Pain Med 2012;2:90–3. https://doi.org/10.5812/aapm.6884

White LD, Hodsdon A, An GH, Thang C, Melhuish TM, Vlok R. Induction opioids for caesarean section under general anaesthesia: a systematic review and meta-analysis of randomised controlled trials. Int J Obstet Anesth 2019;40:4–13. https://doi.org/10.1016/j.ijoa.2019.04.007

Prior CH, Burlinson CEG, Chau A. Emergencies in obstetric anaesthesia: a narrative review 2022. https://doi.org/10.1111/anae.15839

Leighton BL, Cheek TG, Gross JB, Apfelbaum JL, Shantz BB, Gutsche BB, et al. Succinylcholine pharmacodynamics in peripartum patients. Anesthesiology 1986;64:202–5. https://doi.org/10.1097/00000542-198602000-00012

Rosenberg H, Pollock N, Schiemann A, Bulger T, Stowell K. Malignant hyperthermia: a review. Orphanet J Rare Dis 2015;10:1–19. https://doi.org/10.1186/s13023-015-0310-1

Laverde-Sabogal CE, Jaramillo-García LF, Molineros-Baron C. Recrudescence of malignant hyperthermia: be ready for a second round: a case report. Revista Chilena de Anestesia 2024;53:532–5. https://doi.org/10.25237/revchilanestv53n5-14

Tran DTT, Newton EK, Mount VAH, Lee JS, Wells GA, Perry JJ. Rocuronium versus succinylcholine for rapid sequence induction intubation. Cochrane Database of Systematic Reviews 2015;2015. https://doi.org/10.1002/14651858.CD002788.pub3

Ahad A, Khaskheli MS, Langah IA, Meraj MM. Comparison of succinylcholine and rocuronium for rapid sequence intubation in cesarean section. Anaesthesia, Pain & Intensive Care 2018;22.

Kumar RR, Kumari R, Kumar A. Rocuronium versus succinylcholine: a clinical comparison of two muscle relaxants for rapid sequence induction of anaesthesia. International Journal of Advances in Medicine 2016;3:596–601. https://doi.org/10.18203/2349-3933.ijam20162501

Hwang BY, Lee D, Chung S, Hwang H, Kim SC, Kwon JY. Comparison between conventional-dose and high-dose rocuronium use in general anesthesia for Cesarean section. Int J Med Sci 2024;21:978–82. https://doi.org/10.7150/ijms.95061

Kosinova M, Stourac P, Adamus M, Seidlova D, Pavlik T, Janku P, et al. Rocuronium versus suxamethonium for rapid sequence induction of general anaesthesia for caesarean section: influence on neonatal outcomes. Int J Obstet Anesth 2017;32:4–10. https://doi.org/10.1016/j.ijoa.2017.05.001

Naguib M, Brewer L, Lapierre C, Kopman AF, Johnson KB. The Myth of Rescue Reversal in “can’t Intubate, Can’t Ventilate” Scenarios. Anesth Analg 2016;123:82–92. https://doi.org/10.1213/ANE.0000000000001347

Noguchi S, Iwasaki H, Shiko Y, Kawasaki Y, Ishida Y, Shinomiya S, et al. Fetal outcomes with and without the use of sugammadex in pregnant patients undergoing non-obstetric surgery: a multicenter retrospective study. Int J Obstet Anesth 2023;53:103620. https://doi.org/10.1016/j.ijoa.2022.103620

Roy PS, Joshi N, Garg M, Meena R, Bhati S. Comparison of ultrasonography, clinical method and capnography for detecting correct endotracheal tube placement- A prospective, observational study. Indian J Anaesth 2022;66:826–31. https://doi.org/10.4103/ija.ija_240_22

Farrokhi M, Yarmohammadi B, Mangouri A, Hekmatnia Y, Bahramvand Y, Kiani M, et al. Screening Performance Characteristics of Ultrasonography in Confirmation of Endotracheal Intubation; a Systematic Review and Meta-analysis. Arch Acad Emerg Med 2021;9. https://doi.org/10.22037/AAEM.V9I1.1360.

Alenazi A, Alshibani A. Confirmatory methods for endotracheal tube placement in out-of-hospital settings: A systematic review of the literature. Heliyon 2024;10. https://doi.org/10.1016/j.heliyon.2024.e28479

Joffe AM, Hetzel S, Liew EC. A two-handed jaw-thrust technique is superior to the one-handed “EC-clamp” technique for mask ventilation in the apneic unconscious person. Anesthesiology 2010;113:873–9. https://doi.org/10.1097/ALN.0b013e3181ec6414

Brimacombe J, White A, Berry A. Effect of cricoid pressure on ease of insertion of the laryngeal mask airway. Br J Anaesth 1993;71:800–2. https://doi.org/10.1093/bja/71.6.800

Asai T, Barclay K, Power I, Vaughan RS. Cricoid pressure impedes placement of the laryngeal mask airway. Br J Anaesth 1995;74:521–5. https://doi.org/10.1093/bja/74.5.521

Ma KC, Chung A, Aronson KI, Krishnan JK, Barjaktarevic IZ, Berlin DA, et al. Bronchoscopic intubation is an effective airway strategy in critically ill patients. J Crit Care 2017;38:92–6. https://doi.org/10.1016/j.jcrc.2016.10.022

Apfelbaum JL, Hagberg CA, Connis RT, Abdelmalak BB, Agarkar M, Dutton RP, et al. 2022 American Society of Anesthesiologists Practice Guidelines for Management of the Difficult Airway. Anesthesiology 2022;136:31–81. https://doi.org/10.1097/ALN.0000000000004002

Zelop CM, Einav S, Mhyre JM, Martin S. Cardiac arrest during pregnancy: ongoing clinical conundrum. Am J Obstet Gynecol 2018;219:52–61. https://doi.org/10.1016/j.ajog.2017.12.232

Panchal AR, Bartos JA, Cabañas JG, Donnino MW, Drennan IR, Hirsch KG, et al. Part 3: Adult Basic and Advanced Life Support: 2020 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation 2020;142:S366–468. https://doi.org/10.1161/CIR.0000000000000918

Becker CE, Lorenz W, de Abreu MG, Koch T, Kiss T. Airway management and pulmonary aspiration during surgical interventions in pregnant women in the 2nd/3rd trimester and immediate postpartum – a retrospective study in a tertiary care university hospital. BMC Anesthesiol 2024;24:1–9. https://doi.org/10.1186/s12871-024-02551-4

Critchley JD, Ferguson C, Kidd E, Ward P, McNarry AF, Theodosiou CA, et al. Simple steps towards improving safety in obstetric airway management: A quality improvement project. Eur J Anaesthesiol 2023;40:826–32. https://doi.org/10.1097/EJA.0000000000001897

Smit MI, du Toit L, Dyer RA, van Dyk D, Reed AR, Lombard CJ, et al. Hypoxaemia during tracheal intubation in patients with hypertensive disorders of pregnancy: analysis of data from an obstetric airway management registry. Int J Obstet Anesth 2021;45:41–8. https://doi.org/10.1016/j.ijoa.2020.10.012

Bonnet MP, Mercier FJ, Vicaut E, Galand A, Keita H, Baillard C, et al. 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:e81–7. https://doi.org/10.1016/j.bja.2020.03.010

Rajagopalan S, Suresh M, Clark SL, Serratos B, Chandrasekhar S. Airway management for cesarean delivery performed under general anesthesia. Int J Obstet Anesth 2017;29:64–9. https://doi.org/10.1016/j.ijoa.2016.10.007

Li SY, Yao WY, Yuan YJ, Tay WS, Han NLR, Sultana R, et al. SupremeTM laryngeal mask airway use in general Anesthesia for category 2 and 3 Cesarean delivery: A prospective cohort study. BMC Anesthesiol 2017;17:1–7. https://doi.org/10.1186/s12871-017-0460-x

D’Angelo R, Smiley RM, Riley ET, Segal S. Serious Complications Related to Obstetric Anesthesia. The Serious Complication. Repository Project of the Society for Obstetric Anesthesia and Perinatology. Anesthesiology 2014;120:1505–12. https://doi.org/10.1097/ALN.0000000000000253

Bullough AS, Carraretto M. A United Kingdom national obstetric intubation equipment survey. Int J Obstet Anesth 2009;18:342–5. https://doi.org/10.1016/j.ijoa.2009.01.015

McDonnell NJ, Paech MJ, Clavisi OM, Scott KL. Difficult and failed intubation in obstetric anaesthesia: an observational study of airway management and complications associated with general anaesthesia for caesarean section. Int J Obstet Anesth 2008;17:292–7. https://doi.org/10.1016/j.ijoa.2008.01.017

Nze PU. A 10-Year Review of Failed Tracheal Intubation during Caesarean Section in Enugu, Nigeria. Ann Afr Med 2006;3:138–41.

Bloom SL, Spong CY, Weiner SJ, Landon MB, Rouse DJ, Varner MW, et al. Complications of anesthesia for cesarean delivery. Obstetrics and Gynecology 2005;106:281–7. https://doi.org/10.1097/01.AOG.0000171105.39219.55

Barnardo PD, Jenkins JG. Failed tracheal intubation in obstetrics: a 6-year review in a UK region. Anaesthesia 2000;55:690–4. https://doi.org/10.1046/j.1365-2044.2000.01536.x

Shibli KU, Russell IF. A survey of anaesthetic techniques used for caesarean section in the UK in 1997. Int J Obstet Anesth 2000;9:160–7. https://doi.org/10.1054/ijoa.1999.0382

Tsen LC, Pitner R, Camann WR. General anesthesia for cesarean section at a tertiary care hospital 1990-1995: Indications and implications. Int J Obstet Anesth 1998;7:147–52. https://doi.org/10.1016/S0959-289X(98)80001-0

Hawthorne L, Wilson R, Lyons G, Dresner M. Failed intubation revisited: 17-yr experience in a teaching maternity unit. Br J Anaesth 1996;76:680–4. https://doi.org/10.1093/bja/76.5.680

Rocke DA, Murray WB, Rout CC, Gouws E. Relative risk analysis of factors associated with difficult intubation in obstetric anesthesia. Anesthesiology 1992;77:67–73. https://doi.org/10.1097/00000542-199207000-00010

SAMSOON GLT, YOUNG JRB. Difficult tracheal intubation: a retrospective study. Anaesthesia 1987;42:487–90. https://doi.org/10.1111/j.1365-2044.1987.tb04039.x

LYONS G. Failed intubation. Six years’ experience in a teaching maternity unit. Anaesthesia 1985;40:759–62. https://doi.org/10.1111/j.1365-2044.1985.tb11000.x