Prof. M.D. Sinan Dağdelen

My 82-year-old mother, Fatma, was experiencing severe dizziness and intermittent chest pressure that other clinics dismissed as 'old age.' Dr. Dağdelen at Acibadem Altunizade didn't just listen—he investigated. He discovered a rare, slow-leaking aortic aneurysm that had been missed entirely. His calm explanation to our family, using simple diagrams, turned panic into understanding. The minimally invasive procedure he performed gave my mother not just more years, but active, comfortable ones. He calls her his 'star patient,' and she now does her morning walks without fear. We trust him with her life.

Our 8-year-old son, Emre, was born with a complex congenital heart defect and had already undergone two surgeries. Our move to Istanbul filled us with anxiety about finding the right cardiologist. From the first meeting, Dr. Sinan Dağdelen was different. He got down on Emre's level, asked about his favorite football team, and explained how he was going to 'check the engine' of his heart. His follow-up plan isn't just clinical; it's tailored to a growing, active boy. The latest echocardiogram showed remarkable improvement. Dr. Dağdelen doesn't just treat a condition; he cares for our entire child and our family's peace of mind.

I'm a 45-year-old software developer with no prior symptoms. I went to Dr. Dağdelen for a routine executive check-up, expecting a clean bill of health. His thoroughness was astonishing. Through advanced stress imaging at Acibadem Altunizade, he identified a critical, 90% blockage in a major coronary artery—a 'widow-maker.' I was in the catheterization lab within hours. The precision of his stent placement was flawless. This wasn't a follow-up; this was a life-saving intervention disguised as a check-up. His approach is proactive, not reactive. He didn't wait for a heart attack to happen; he prevented mine.

I was a tourist from Germany, hiking in Cappadocia, when I developed crushing chest pain and was airlifted to Istanbul in crisis. At Acibadem, Dr. Dağdelen managed my emergency case of a massive heart attack with a team that moved like a symphony. But what happened after defines him. He personally coordinated a complex, hybrid surgical procedure (CABG combined with angioplasty) for my multi-vessel disease. For my two-week inpatient recovery, he visited twice daily, even on weekends, adjusting everything from medication to my morale. He then set up a seamless virtual follow-up plan with my doctor back in Berlin. He treated a stranger in extremis with the dedication of family.