Prof. M.D. Ender Semiz

My 8-year-old son, Leo, was diagnosed with a rare congenital heart defect after a school sports physical flagged an irregular murmur. We were terrified. Dr. Semiz didn't just see a pediatric cardiology case; he saw a little boy who loved soccer. He explained everything using a stuffed animal with a zipper for a chest. His approach was so gentle, and the minimally invasive catheter procedure he performed meant Leo was home in two days. At our last follow-up, Leo showed Dr. Semiz his new soccer trophy. We call him the 'Heart Mechanic for Kids.' Acibadem Maslak's pediatric cardiac unit is incredible, but it was Dr. Semiz's human touch that healed our family.

I'm a 74-year-old retired engineer with a stubborn streak. After dismissing shortness of breath as 'old age,' a severe episode landed me in the ER at Acibadem Maslak. Dr. Ender Semiz was the on-call cardiologist. He diagnosed me with critical aortic stenosis. His directness cut through my denial—'Your valve is like a rusted gate, and we need to replace it.' But his confidence was absolute. He presented the TAVI procedure not as a major surgery but as precise engineering. As an engineer, I appreciated that. The procedure was flawless. At my routine checkup six months later, he reviewed my echo and simply said, 'The new gate swings perfectly.' No nonsense, just brilliant, effective care.

It started as a routine checkup for my marathon training. Dr. Semiz, during a stress echocardiogram, noticed an anomaly others had missed—a subtle weakness in my right ventricle. He suspected arrhythmogenic cardiomyopathy, a condition often found in athletes. What followed wasn't just a diagnosis; it was a forensic investigation. He coordinated with genetic specialists, ordered a cardiac MRI, and spent an hour mapping out a new, safe training regimen to protect my heart. He didn't just tell me to stop running; he helped me adapt. This was preventive cardiology at its finest. He turned a potentially life-threatening 'time bomb' into a manageable condition. I'm still running, thanks to his exceptional diligence.

My husband suffered a massive heart attack at home. The chaos of the ambulance, the rush to Acibadem Maslak's emergency cath lab—it's all a blur. Dr. Semiz met us there, his calm demeanor an instant anchor. He explained that a major artery was completely blocked, and he needed to act immediately. The emergency angioplasty was successful. But his care didn't end in the lab. The next day, he sat with me and my two terrified teenagers, drawing diagrams to show what happened and what recovery would look like. He treated our fear as seriously as the blockage. During follow-up visits, he checks on my husband's heart and our family's peace of mind. He is an emergency savior and a long-term guardian.