[Patent foramen ovale presented hypoxemia with cardiac sarcoidosis].

A 53-year-old woman with a double, double, double (DDD) pacemaker due to complete atrioventricular block was admitted to our hospital with a diagnosis of congestive heart failure. At the time of admission, she was in a hypoxic state with cyanosis and clubbed finger. The ultrasonic cardiogram showed a severe degree of tricuspid valve regurgitation and a thin left ventricular septal wall. Transesophageal echocardiography revealed a patent foramen ovale (PFO) with continuous right to left shunt flow. She was diagnosed with cardiac sarcoidosis with hypoxemia caused by PFO. PFO closure and tricuspid valve annuloplasty (DeVega method) were performed. Following surgery, the patient's hypoxemia improved and the cyanosis disappeared. The patient was discharged 37 days after the operation.