See first-hand what destructive effects carcinoid tumors have on heart valves. A 66-year-old patient presented with carcinoid heart disease, a complication of carcinoid syndrome. “This is not something we see very often,” said Dr. Fred Milla, cardiac surgeon at the Marcus Heart Valve Center, who performed beating heart valve replacement surgery. Watch rare operative video of the tricuspid and pulmonic valves before and after surgical intervention.