PMID- 32617232 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2168-8184 (Print) IS - 2168-8184 (Electronic) IS - 2168-8184 (Linking) VI - 12 IP - 5 DP - 2020 May 30 TI - Massive Pulmonary Embolism as a Cause of Cardiac Arrest: Navigating Unknowns in Life After Death. PG - e8361 LID - 10.7759/cureus.8361 [doi] LID - e8361 AB - Pulmonary embolism (PE) is a common diagnosis with a low associated mortality rate. More critical variants, such as massive PE, also known as fulminant PE, are characterized by severe hemodynamic instability and have a markedly higher mortality rate. These variants can later develop in previously low to intermediate-risk patients and precipitate cardiac arrest within hours of symptom onset. The high mortality rate associated with massive PE is confounded by the difficulty in identifying patients most at risk of decompensating and a lack of clear treatment guidelines. We present the case of a patient at low to intermediate-high risk upon admission, and after failing systemic thrombolysis, decompensated, and went into cardiac arrest. This article serves to reinforce the need to closely monitor these patients due to the insufficiency of prognostic scores to predict decompensation and highlights the need for further research. We advocate the use of venoarterial extracorporeal membrane oxygenation (VA-ECMO) as means of stabilization and will discuss various therapeutic alternatives. CI - Copyright (c) 2020, Mata et al. FAU - Mata, Robin AU - Mata R AD - Internal Medicine, Nova Southeastern University School of Osteopathic Medicine, Fort Lauderdale, USA. FAU - McDermott, Gabrielle AU - McDermott G AD - Physical Medicine and Rehabilitation, Memorial Regional Hospital / Nova Southeastern University-Dr. Kiran C. Patel College of Osteopathic Medicine (KPCOM), Hollywood, USA. FAU - Diaz, Lorenzo AU - Diaz L AD - Physical Medicine and Rehabilitation, Memorial Regional Hospital / Nova Southeastern University-Dr. Kiran C. Patel College of Osteopathic Medicine (KPCOM), Hollywood, USA. LA - eng PT - Case Reports DEP - 20200530 PL - United States TA - Cureus JT - Cureus JID - 101596737 PMC - PMC7325409 OTO - NOTNLM OT - acute pulmonary embolism OT - alteplase OT - inpatient care OT - massive pulmonary embolism OT - pert OT - pulmonary critical care OT - systemic thrombolysis OT - thrombectomy OT - tpa OT - va-ecmo COIS- The authors have declared that no competing interests exist. EDAT- 2020/07/04 06:00 MHDA- 2020/07/04 06:01 PMCR- 2020/05/30 CRDT- 2020/07/04 06:00 PHST- 2020/07/04 06:00 [entrez] PHST- 2020/07/04 06:00 [pubmed] PHST- 2020/07/04 06:01 [medline] PHST- 2020/05/30 00:00 [pmc-release] AID - 10.7759/cureus.8361 [doi] PST - epublish SO - Cureus. 2020 May 30;12(5):e8361. doi: 10.7759/cureus.8361.