Cardiac herniation is a fatal complication in patients undergoing pneumonectomy with pericardial resection. A 53-year-old man underwent right-sided extrapleural pneumonectomy for malignant pleural mesothelioma. He underwent right-sided pericardial resection and reconstruction with an expanded polytetrafluoroethylene sheet. Routine chest radiography performed 18?h postoperatively revealed cardiac herniation into the right-sided thoracic cavity. The patient was immediately transferred to the operating room, and the defect was repaired. He died of tumor progression. However, cardiac herniation did not recur over 2?years postoperatively.
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