Carcinoid heart disease without the carcinoid syndrome but with quadrivalvular regurgitation and unsuccessful operative intervention.

A 53-year-old woman is described who underwent mitral and aortic valve replacement and tricuspid valve annuloplasty for pure regurgitation at all 3 valve sites for unrecognized carcinoid heart disease without the carcinoid syndrome 22 days before death. Metastatic carcinoid was not recognized until necropsy, which disclosed a probable ovarian primary but with large hepatic metastases and left-sided cardiac involvement either greater than or equal to the right-sided involvement. Pulmonary hypertension, very unusual in carcinoid heart disease, persisted postoperatively and probably played a role in the patient's early death. Hepatic metastasis with ovarian primary is most unusual in this circumstance.