About Ureteropelvic junction (UPJ) obstruction

Ureteropelvic junction obstruction is a condition where blockage occurs at a point where the ureter attaches to the kidney. This leads to decrease of flow of urine down the ureter and thus increases the fluid pressure inside kidney. Higher pressure inside kidney leads to deterioration of kidney function. The obstruction can be either congenital (the patient is born with it) or can be develops because of age related or body shape issues. Your doctor will suggest the best treatment plan for your depending upon your health and medical history.

Dr. Prof. Semih Ayan

Urology & Uro-oncology  | Professor

MD (Urology), Fellow of the European Board of Urology

Istanbul, Turkey

Prof. Dr. Semih Ayan is a leading urology specialist in Istanbul, Turkey with a vast clinical experience of over 29 years. He received post doctorate research fellow from the Department of Urology at Harvard Medical School, Children's Hospital in Boston.His main area of clinical focus include complicated issue of paediatric and adult urology, and treatment of cancers of kidney, prostate and bladder. He has been involved in an extensive oncology program with major focus on robotic surgery of prostate and kidney cancer.

Dr. Ayan provides expert medical services including treatment of partial ureteral obstruction to the kidney, neonatal hydronephrosis, ureteropelvic junction obstruction, urine reflux to kidney, hypospadias and undescended testis.He is also considered an expert in treating urinary stone disease and has an experience of performing numerous endoscopic and percutaneous surgeries for kidney, ureter and bladder stones.

Prof. Dr. Semih Ayan is a recipient of United States Medical License and European Board of Urology Certificate. He is also a member of several reputed medical organizations including American Urology Association (AUA), European Association Urology (EAU) and Turkish Urologic Surgery and Urologic Oncology Society.

Clinical Focus

Urological Procedures

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