Peripartum cardiomyopathy (PPCM) is defined as the onset of acute heart failure without demonstrable cause during the last trimester of pregnancy or within the first 6 months after delivery, which may have devastating consequences upon maternal and fetal outcome. PPCM is often unrecognized as symptoms of normal pregnancy commonly mimic those of mild heart failure but can rapidly progress to cardiac failure. We experienced a shock patient who had cardiac arrest during surgery for emergency cesarean section and the diagnosis of PPCM was made postoperatively. Her postoperative course was complicated by an embolic stroke four months after delivery. We suggest that close peripartum monitoring is essential in the management of PPCM. Thromboembolic complication as a major risk should be considered.