Prof. M.D. Koray Güven

My 82-year-old mother, Ayşe, developed a sudden, severe pain in her abdomen while visiting us in Istanbul. We rushed her to Acıbadem Maslak's emergency department, terrified it might be a ruptured aneurysm. Dr. Koray Güven was called in immediately. He explained everything to us in such a calm, clear manner, despite the late hour. Using a minimally invasive procedure through a tiny incision in her groin, he placed a stent graft to repair the weak spot in her aorta. His precision was astounding. She was sitting up and having tea the next morning, with barely a scar to show for it. He treated her not just as a patient, but with the respect and gentleness one shows an elder. We are forever grateful for his swift, expert action that saved her life.

As a competitive cyclist, a deep vein thrombosis (DVT) in my leg was a nightmare diagnosis that threatened my career. Other doctors presented invasive, lengthy surgical options with long recovery times. Dr. Güven proposed a cutting-edge, image-guided thrombolysis procedure. In the angiography suite, he used real-time X-ray imaging to thread a tiny catheter directly to the clot and delivered clot-busting medication precisely where it was needed. The detail was incredible—he could see the blood flow restoring before his eyes. The procedure was done in a few hours, and I was discharged the same day. Within weeks, I was back on my bike, with full circulation restored. Dr. Güven didn't just treat a condition; he preserved my passion and livelihood with remarkable technological skill.

Our 7-year-old son, Deniz, was born with a vascular malformation on his neck that was growing and becoming painful. We were afraid of a major, disfiguring surgery. Dr. Koray Güven offered a completely different path: sclerotherapy. He was wonderful with Deniz, showing him the ultrasound pictures and calling the machine a 'special camera.' During the procedure, under light sedation, Dr. Güven used ultrasound guidance to inject a tiny amount of medication directly into the malformation's feeding vessels, causing it to shrink. We watched it gradually fade over several sessions. There was no cutting, no scar, and Deniz wasn't scared because of Dr. Güven's incredible bedside manner. He gave our son confidence and us peace of mind with a truly elegant solution.

I was referred to Dr. Güven for what I thought was a routine follow-up scan after a liver tumor ablation he performed a year ago. The MRI revealed a new, tiny suspicious lesion. Instead of waiting, Dr. Güven proposed a proactive 'biopsy and treat' approach in a single session. Using CT guidance, he navigated a needle with pinpoint accuracy to the 8mm lesion, took a sample for pathology, and then immediately performed a microwave ablation to destroy it. He called it 'taking care of two birds with one stone.' His foresight and technical confidence were breathtaking. The pathology later confirmed early recurrence, which he had already treated. His vigilance and ability to execute such a complex, dual-purpose procedure seamlessly turned a potentially serious follow-up into a definitive cure. He is a master of his craft.