Pneumoperitoneum After a Redo Cardiac Surgery: Patience Can Lead to Victory.

Pneumoperitoneum after cardiac surgery is not usual. It occurs during extended sternotomy, which is sometimes accompanied by the opening of the peritoneal cavity or in cases after previous sternotomies. A 73-year-old man was operated on two times within one month due to prosthetic mitral valve dehiscence. The second operation was accompanied by a lot of complications, including blood loss, respiratory failure, massive pleural effusion, sternal infection, pneumomediastinum, and pneumoperitoneum. The presence of pneumoperitoneum alerted the possibility of intra-abdominal cavitary organ perforation. No surgical approach was chosen because there were no signs of peritonitis. The patient was discharged to home in a good health situation. Sixteen months later, he was recovered at the hospital for heart failure, and after abdominal CT, benign pneumoperitoneum was observed in the abdominal cavity again. There was no explanation for this finding, but again conservative treatment was chosen. He was discharged for the third time from the hospital in good condition.