Usually presents with respiratory distress, hypotension, hypoxia. May lead to an anaphylactoid reaction that produces pulmonary hypertension and right heart failure (which can eventually progress to biventricular failure and cardiac arrest). Mortality rate is 60% [Clark SL et al. Am J Obstet Gynecol 172: 1158, 1995], and 70% of these deaths will be due to […]