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Contributor: Aaron Lessen MD Educational Pearls: Pregnant patients at high risk of cardiac arrest, in cardiac arrest, or in extremis require special care A useful mnemonic to recall the appropriate management of critically ill pregnant patients is TOLDD T: Tilt the patient to the left lateral decubitus position This position relieves pressure exerted from the uterus onto the inferior vena cava, which reduces cardiac preload If the patient is receiving CPR, an assistant should displace the uterus manually from the IVC towards the patient's left side O: Administer high-flow adjunctive oxygen L: Lines should be placed above the diaphragm Lines below the diaphragm are ineffective due to uterine compression of the IVC May consider humeral interosseous line vs. internal jugular or subclavian central line D: Dates should be estimated > 20 weeks, can consider a resuscitative hysterotomy (previously known as perimortem c-section) to improve chances of survival The uterus is palpable at the umbilicus at 20 weeks and 1 cm superior to the umbilicus for every week thereafter D: Call the labor and delivery unit for additional help References ACOG Practice Bulletin No. 211 Summary: Critical Care in Pregnancy. Obstetrics & Gynecology. 2019;133(5) Fujita N, Higuchi H, Sakuma S, Takagi S, Latif MAHM, Ozaki M. Effect of Right-Lateral Versus Left-Lateral Tilt Position on Compression of the Inferior Vena Cava in Pregnant Women Determined by Magnetic Resonance Imaging. Anesth Analg. 2019;128(6):1217-1222. doi:10.1213/ANE.0000000000004166 Jeejeebhoy FM, Zelop CM, Lipman S, et al. Cardiac Arrest in Pregnancy. Circulation. 2015;132(18):1747-1773. doi:doi:10.1161/CIR.0000000000000300 Singh, Ajay; Dhir, Ankita; Jain, Kajal; Trikha, Anjan1. Role of High Flow Nasal Cannula (HFNC) for Pre-Oxygenation Among Pregnant Patients: Current Evidence and Review of Literature. Journal of Obstetric Anaesthesia and Critical Care 12(2):p 99-104, Jul–Dec 2022. | DOI: 10.4103/JOACC.JOACC_18_22 Summarized & Edited by Jorge Chalit, OMS3 Donate: https://emergencymedicalminute.org/donate/