Orhan Koca

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PURPOSE In clinical practice, atypical small acinar proliferation (ASAP) and high-grade prostatic intraepithelial neoplasia (HGPIN) are two common findings on prostate biopsies. Knowing the frequency of a prostate cancer diagnosis on repeat biopsies would aid primary treating physicians regarding their decisions in suspicious cases. MATERIALS AND METHODS(More)
BACKGROUND Varicocele, the abnormal dilatation of the veins in the pampiniform plexus is commonly seen in infertile patients. In this study, we aim to examine sperm DNA damage after the creation of experimental varicocele in rats and to observe the change of this damage after a varicocelectomy. MATERIALS AND METHODS In this experimental study, a total of(More)
OBJECTIVES To evaluate national practice patterns in the treatment of male anterior urethral strictures among Turkish urologists. MATERIALS AND METHODS A survey form including 12 questions prepared to determine active Turkish urologists' approach to diagnosis and treatment of the adult urethral stricture (US) were filled out. Based on the survey results,(More)
OBJECTIVE Prostate cancer (PC) is one of the most common cancer and an important reason of cancer specific death. The incidence of patients who diagnosed at low stage increased because of widespread using Prostate Specific Antigen (PSA) testing. We evaluated the patients who were diagnosed single microscopic focus of adenocarcinoma and treated radical(More)
BACKGROUND AND AIMS To investigate the possible effect of resectoscope size on urethral stricture rate after monopolar TURP. MATERIALS AND METHODS A retrospective study of 71 men undergoing TURP was conducted at two centers' from November 2009 to May 2013. The patients were divided into one of two groups according to the resectoscope diameter used for(More)
Kemalettin Erbatur received double major B.S. (honors) degrees in electronic engineering and In 2002, he became a faculty member in the Faculty of Engineering and Natural Sciences, Sabanci University. For a period in 2003, he was a collaborator of the International Rescue System Institute, Kobe, Japan as a faculty of Sabanci University. He offers courses on(More)
The Digisonic is a totally digitised multichannel cochlear implant remarkable for the versatility of its sound signal processing. Owing to its flexible and articulated array, its 15 electrodes are usually introduced in the scala tympani. A special version of this device has been designed to be used in case of total obstructed cochlea. It consists of(More)
The DIGISONIC is a digitized 15-channel cochlear implant. A special version of this implant has been designed for use in the totally obstructed cochlea. This device has 10 separate electrodes that may be inserted, one by one, into 10 different holes drilled in the bony cochlea. The device's 128-point Fast Fourier Transform analysis supplies the patient with(More)
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