Farhad Tadayyon

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PURPOSE To determine the effect of previous single or multiple open stone surgeries on percutaneous nephrolithotomy (PCNL) results and complications. MATERIALS AND METHODS We reviewed medical records of 1422 patients who had been undergone PCNL in our institute between 1998 and 2011 by the same surgeon. Patients were divided into 3 groups. The first group(More)
BACKGROUND The aim of the study was to determine the relative frequency of abnormal urodynamic findings in new multiple sclerosis (MS) cases without micturition complaints and to find its correlation with the number of MS plaques on magnetic resonance imaging (MRI), urinary tract involvement and the number of disease episodes. METHODS In this prospective(More)
In clinical practice, internal urethrotomy is an easy procedure and is offered as a first modality for treatment of short urethral strictures. Internal urethrotomy refers to any procedure that opens the stricture by incising or ablating it transurethrally. The most common complication of internal urethrotomy is stricture recurrence. The curative success(More)
PURPOSE Catheter obstruction from mucus plugging and urinary leakage are common problems after enterocystoplasty. A large suprapubic catheter and frequent bladder irrigation with normal saline are routinely used in the postoperative period to decrease catheter plugging. In this study we evaluated the use of a somatostatin analogue (Sandostatin to decrease(More)
BACKGROUND The aim of this study is to evaluate the outcome of an innovative, minimally invasive sling technique with autologous tissue in women with concomitant incontinence and anterior vaginal wall prolapse (AVWP). MATERIALS AND METHODS Fifty-six women with stress urinary incontinence (SUI) or mixed urinary incontinence and AVWP were randomly assigned(More)
BACKGROUND Tumor growth requires expansion and development of vascular network. An increase in Gleason score is representative of an increase in tumor invasion and extent. In this study, the relationship between Gleason score and vascular characteristics of needle biopsy samples in prostate cancer patients has been evaluated. MATERIALS AND METHODS We(More)
Acute urinary retention (AUR) is one of the most important long-term compli-cations of benign prostatic hyperplasia (BPH). Nitric oxide (NO) as a transmitter can relax smooth muscles of the bladder neck and external sphincter. Several studies have reported that sublingual isosorbide dinitrate (ISDN), as a NO donor, can lead to significant decrease in(More)
INTRODUCTION Considering the high prevalence of urinary system stones and that non-medical treatments have more costs and side effects, we decided to evaluate the effect of theophylline in the passage of ureteral stones. MATERIALS AND METHODS One hundred and fifty patients with ureteral stones were assigned into groups A and B, whose age, sex, size of(More)
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