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Featured researches published by Erdal Yilmaz.


Urology | 2003

Music decreases anxiety and provides sedation in extracorporeal shock wave lithotripsy

Erdal Yilmaz; S. Ozcan; M. Basar; Hülya Başar; Ertan Batislam; Mehmet Ferhat

OBJECTIVESnTo evaluate the efficacy of music on sedation in extracorporeal shock wave lithotripsy (ESWL) treatment to compare its anxiolytic effects with those of midazolam.nnnMETHODSnNinety-eight urolithiasis patients were randomly divided into two groups. Hemodynamic parameters, including mean arterial pressure, heart rate, respiration rate, and oxygen saturation, were recorded in all patients. In 50 patients (group 1), 2 mg of midazolam was administered intravenously 5 minutes before ESWL. In group 2 (n = 48), music chosen by the patients was listened to with a headset and continued during the treatment. The visual analog scale (0 to 100 mm), Observers Assessment of Alertness/Sedation Scale, State and Trait Anxiety Inventory-Trait Anxiety test, and State and Trait Anxiety Inventory-State Anxiety test were administered for the evaluation of pain, sedation level, and patient anxiety.nnnRESULTSnFor the hemodynamic parameters, a statistically significant decrease in mean arterial pressure was noted at the end of the ESWL procedure in group 2 and in oxygen saturation from the 10th minute to the end of the treatment in group 1. Although the visual analog scale, Observers Assessment of Alertness/Sedation Scale, and State and Trait Anxiety Inventory-State Anxiety test did not show statistically significant differences, the State and Trait Anxiety Inventory-Trait Anxiety score was found to be lower in the music group (group 2) than in the midazolam group (group 1).nnnCONCLUSIONSnWith the anxiolytic effects of music, ESWL can be performed more effectively with the patient in a comfortable state. Listening to music by patients during the ESWL session is a feasible and convenient alternative to sedatives and anxiolytics.


Urologia Internationalis | 2003

Alterations of Intracorporeal Structures in Patients with Erectile Dysfunction

Önder Yaman; Erdal Yilmaz; Murat Bozlu; Kadri Anafarta

Objective: We sought to quantify intracavernosal smooth muscle content (SMC), endothelial cells (EC) and elastic fibres (EF) in both potent and impotent men. We compare the results in impotent men with regard to patient age, aetiology of impotence, presence or absence of diabetes mellitus and smoking. Patients and Methods: Seventy penile biopsies were taken from 10 potent patients with congenital penile curvature (age 17–24 years, mean: 21 ± 1.16) and from 60 impotent patients (age 28–64 years, mean: 46 ± 7.64). Biopsies were stained immunohistochemically to quantify the percentage of SMC by anti-desmin and anti-SMA, anti-CD-34 for EC and Verhoeff’s histochemical staining for EF. Statistical analyses were performed by using one-way Anova after square root transformation. Results: We observed a statistically significant difference in the amounts of corporeal SMC, EC and EF with regard to the following subgroups: potent versus impotent men; men with arterial aetiology versus veno-occlusive aetiology; men under the age of 45 versus men over the age of 45; patients with diabetes mellitus versus non-diabetes mellitus, and smokers versus non-smokers. Conclusion: Quantification of intracavernosal structures appears to be important for either understanding the mechanism of impotence or deciding the appropriate treatment.


International Urology and Nephrology | 2005

Terazosin in the Treatment of Premature Ejaculation: A Short-term Follow-up

M. Murad Basar; Erdal Yilmaz; Mehmet Ferhat; Halil Başar; Ertan Batislam

Aim: The aim of the present study was to evaluate the efficacy of terazosine in patients with premature ejaculation and lower urinary tract symptoms (LUTS), after excluding other sexual disorders and chronic prostatitis. Methods: A total of 90 patients with premature ejaculation and LUTS were enrolled to the study after excluding sexual disorders, prostatitis and benign prostatic hyperplasia. The patients were divided into two groups. Sixty patients in group 1 were treated with terazosine 5 mg daily for a month. Patients were followed monthly and questioned for their ejaculation problem. The results were classified as cure, improvement and ineffective. If patients showed improvement and ineffectiveness, the treatment was continued with 10 mg daily for the following month. Group 2 was included 30 patients, and placebo was applied for a month. At the end of this period, in patients who did not show any improvement, terazosine 10 mg was started. Results: In the treatment group, at the 1st month follow-up, 21 patients (35%) were cured, 20 (33.3%) showed improvement. In 19 (31.7%) patients, the treatment was ineffective. In group 2, 9 (30%) patients showed improvement and the rest had no-changes after one-month follow up. There was statistically significant difference between two groups (Pearson χ2 test=0.000). Later, terazosine 10 mg was given to the patients in group 2 and to the patients who showed improvement or unsuccessful result with terazosine 5 mg. With terazosine 10 mg, 10 (14.5%) patients were cured, 29 (42.2%) patients were improved. Finally, terazosine treatment in patients with premature ejaculation was found to be effective in 60 patients (66.7%).Conclusion: Alpha blockers seem to be physiological medical agents in the treatment of premature ejaculation since ejaculation is under sympathetic control. Moreover, these agents are effective in lower urinary tract and they should be used in patients with premature ejaculation and lower urinary tract symptoms.


Journal of Endourology | 2003

Four analgesic techniques for shockwave lithotripsy: eutectic mixture local anesthetic is a good alternative.

Hülya Başar; Erdal Yilmaz; S. Ozcan; Ünase Büyükkoçak; Filiz Sari; Alpaslan Apan; Ertan Batislam

BACKGROUND AND PURPOSEnVarious sedative and analgesic medication has been used for shockwave lithotripsy (SWL). The aim of this study was to evaluate the efficacy of different anesthesia modalities in these patients.nnnPATIENTS AND METHODSnOne hundred patients were randomly divided into four groups. The first (Group F) received fentanyl 1 microg/kg intravenously (IV), the second (Group D) received diclofenac sodium 1 mg/kg intramuscularly (IM), the third (Group T) received tramadol 1.5 mg/kg IM, and the fourth (Group E) was given 15 g of eutectic mixture local anesthetic (EMLA) cream containing lidocaine and prilocaine. After routine preoperative evaluation, all patients received midazolam 2 mg IV 5 minutes before lithotripsy for sedative premedication. In all groups, a supplemental 25-microg bolus of fentanyl was administered IV when patients complained of pain, moved, or grimaced in response to the shockwaves. Pain intensity was evaluated on a 0- to 100-mm visual analog scale (VAS). The level of sedation was determined using the Observers Assessment of Alertness/Sedation (OAS/S). Side effects such as bradypnea, oxygen desaturation, bradycardia, pruritus, and nausea and vomiting were recorded.nnnRESULTSnThere were no statistically significant differences among the four groups with regard to VAS, OAS/S scores, or side effects. In Group F, the mean arterial pressure was decreased significantly at 10 and 20 minutes. The patients in this group also manifested a decrease of oxygen saturation at the first, tenth, and twentieth minutes and the end of SWL.nnnCONCLUSIONnApplication of EMLA cream was as safe and effective as fentanyl, diclofenac, and tramadol, and reduction of the fentanyl dose during SWL was possible.


Scandinavian Journal of Urology and Nephrology | 2002

Comparison of Three Analgesics for Extracorporeal Shock Wave Lithotripsy

S. Ozcan; Erdal Yilmaz; Ünase Büyükkoçak; Hülya Başar; Alpaslan Apan

Objective: The aim of the study was to compare the clinical efficacy of three different analgesic drugs with respect to their level of sedation, analgesia and quick mobilisation without cardiopulmonary depression, for outpatient extracorporeal shock wave lithotripsy (ESWL) procedure. Material and Methods: Sixty outpatients undergoing elective ESWL using a third generation lithotriptor were studied. The patients were randomly divided into three groups of twenty patients. All patients received midazolam (2 mg) intravenously five minutes before the procedure. In group F, fentanyl was given (1 w g kg -1 IV) at the same time with midazolam. In group D, diclofenac sodium was given (1 mg kg -1 , IM) intramuscularly 45 minutes before ESWL. In group T, tramadol was given (1.5 mg kg -1 ) 30 minutes before ESWL. Arterial pressure, heart rate, respiratory rate and oxygen saturation were recorded before the procedure, after sedation, at the first minute, and every ten minutes during the procedure. Pain intensity was identified with a Visual Analogue Scale. The level of sedation was evaluated by using the Observers Assessment of Alertness/Sedation Scale. All patients were asked to assess their satisfaction with the seven point Verbal Rating Scale before discharge. Side-effects were also recorded during the procedure. Results: The incidence of nausea and vomiting was higher in fentanyl group compared with the other groups. In patients who received fentanyl, the decrease of oxygen saturation at the first and tenth minute of the procedure was statistically significant ( p < 0.05). Conclusions: Diclofenac sodium and tramadol were found to be safe and effective analgesics with lower side-effects than fentanyl.


European Urology | 1998

A Prospective Randomized Study of Transurethral Resection of the Prostate and Transurethral Vaporization of the Prostate as a Therapeutic Alternative in the Management of Men with BPH

Sadettin Küpeli; Sümer Baltaci; Tarkan Soygür; Aytaç S; Erdal Yilmaz; Mehmet Budak

Objective: The common goals of new surgical treatment for benign prostatic hyperplasia (BPH) are to improve subjective and objective symptoms, to decrease the risk of postoperative complications and short hospitalization. Transurethral electrovaporization of the prostate (TUVP) is a new, minimally invasive and a promising alternative to standard transurethral resection of the prostate (TURP) in the treatment of BPH. The aim of this study is to compare the efficacy and safety of these two treatment alternatives. Methods: A prospective randomized trial of 60 patients with symptomatic BPH was performed. Preoperative and postoperative International Prostate Symptom Score (IPSS), maximum flow rates (Qmax) and complications were recorded in each patient. The volume of the prostate was measured preoperatively and postoperatively using transrectal ultrasound. Results: Of the 30 patients who underwent TURP, mean hospital stay was 4.5 days. The Foley catheter was removed on postoperative day 4 following surgery. IPSS decreased from 21.6 to 5.2, Qmax increased from 9.2 to 19.2 ml/s at 3 months. Mean prostatic volume at 3 months decreased from 51.7 to 26.2 g, a 49.3% reduction. Of 30 patients undergoing TUVP, mean hospital stay was 2.5 days and the catheter was removed within 2 days following surgery. Postoperative urinary retention did not occur in any patient. IPSS decreased from 19.4 to 4.1 and Qmax increased from 7.9 to 17.7 ml/s at 3 months. Mean prostatic volume decreased from 48.9 to 27.8 g, a 43.1% reduction at 3 months. In the TUVP group, none of the patients required blood transfusions or developed clinical transurethral resection syndrome. There were no major complications. Sphincteric incontinence, urethral strictures or bladder neck contractures were not recorded. At 3 months postoperatively, 13 patients in the TURP group and 7 patients in the TUVP group had retrograde ejaculation. Conclusion: Our initial experience of TUVP suggests advantages over conventional TURP through reduced blood loss and shorter hospital stay. It appears to be an effective treatment for BPH; however, long-term results should be evaluated.


International Journal of Urology | 2003

Psychological trauma of circumcision in the phallic period could be avoided by using topical steroids

Erdal Yilmaz; Ertan Batislam; Mehmet Murad Basar; Halil Başar

Objective:u2002 The objective of our study was to assess the efficacy of topical steroids in the treatment of phimosis and evaluate patients using the Diagnostic and Statistical Manual‐III‐Revised (DSM‐III‐R) test with the aim of eliminating castration anxiety of circumcision in the phallic period.


Urology | 2001

Sildenafil citrate for penile hemodynamic determination: an alternative to intracavernosal agents in Doppler ultrasound evaluation of erectile dysfunction

M. Basar; Ertan Batislam; Deniz Altinok; Erdal Yilmaz; Halil Başar

OBJECTIVESnTo suggest a new noninvasive method for penile Doppler ultrasound (PDU) evaluation of erectile dysfunction using oral sildenafil citrate as an erection induction agent.nnnMETHODSnA total of 20 patients admitted with the complaint of erectile dysfunction were evaluated by the short form of the International Index of Erectile Function. A total score of less than 25 was accepted as erectile dysfunction and PDU was performed. The initial penile study consisted of PDU examination under visual sexual stimulation (VSS), and the peak systolic velocity, end-diastolic velocity, and resistance index were recorded. Measurements of all the parameters were repeated on the same patients after intracavernosal papaverine, intracavernosal prostaglandin E(1) (PGE(1)), and oral sildenafil citrate administration, plus VSS. All patients had these four tests in the same order at weekly intervals. Sildenafil citrate was given orally 45 minutes before Doppler investigation, and patients had VSS during the waiting period. The patients were asked about their satisfaction and comfort after each test. Statistical analysis was performed using the Wilcoxon and Mann-Whitney U tests.nnnRESULTSnThe measurements with papaverine, PGE(1), and sildenafil citrate were significantly different from those after only VSS (P <0.008); however, the papaverine, PGE(1), and sildenafil citrate results were not different from each other according to the peak systolic velocity, end-diastolic velocity, and resistance index measurements (P >0.008). Patients commented that although PGE(1) was the strongest erectogenic agent, sildenafil citrate was the most convenient.nnnCONCLUSIONSnSince the results of PDU with oral sildenafil citrate in association with VSS were not statistically different, we suggest a new noninvasive erection induction method for the purpose of PDU evaluation of erectile dysfunction.


Urological Research | 2004

Testicular tissue nitric oxide and thiobarbituric acid reactive substance levels: evaluation with respect to the pathogenesis of varicocele

Ucler Kisa; M. Murad Basar; Mehmet Ferhat; Erdal Yilmaz; Halil Başar; Osman Caglayan; Ertan Batislam

The aim of the present study is to evaluate tissue nitric oxide (NO) and thiobarbituric acid reactive substance (TBARS) levels in testicular tissue, and to determine their relationship with seminal parameters in order to explain possible effects on varicocele pathophysiology.Ten adult male Wistar rats at 8xa0weeks old underwent partial left renal vein ligation. A sham operation was performed on control rats in a second group of another ten rats. All animals were killed 4xa0weeks after surgery. The testes were removed and histological changes were observed by light microscopy with haematoxylin and eosin stain on half of each testis. The rest of testis was used for the evaluation of testicular tissue NO and TBARS levels. Epididymal aspirated seminal plasma was used for semen analysis and morphological analysis was carried out according to Kruger’s criteria. Statistical analysis was performed by using Mann-Whitney U-tests and Spearman rank correlations between the two groups for NO and TBARS levels and for seminal parameters. Testicular tissue NO and TBARS levels (mean±SEM) were 62.8±10.1 μmol/g protein and 4.7±0.3xa0nmol/g protein in group 1. These parameters were 16.9±2.2 μmol/g protein and 3.1±0.2xa0nmol/g protein in the group 2 controls. There were significant differences between these parameters (PNO=0.000, PTBARS=0.001). Although a positive and significant correlation between testicular tissue NO and TBARS levels was found (rs=0.739, P=0.014), there was only a strong negative correlation between NO levels and sperm motility in group 1 (rs=−0.815, P=0.004). We found that this effect of NO on sperm motility was independent from TBARS levels after regression analysis (r2=-0.687, β=0.825, P=0.034). Although there were statistically significant differences in seminal parameters between the two groups, there was no difference between them in the histopathological examination. We found that sperm motility was significantly related to testicular tissue NO levels only. Thus, we suggest that NO is an important mediator in the pathogenesis of varicocele. TBARS and other substances have been effective via NO pathways.


Nutrition Research | 2003

Consumption of aqueous garlic extract leads to significant improvement in patients with benign prostate hyperplasia and prostate cancer

lker Durak; Erdal Yilmaz; Erdinç Devrim; Hakkı Perk; Murat Kaçmaz

Abstract Aim Investigation of possible effects of garlic extract supplementation on disease parameters of patients with benign prostate hyperplasia (BPH) and prostate cancer (PC). Materials and methods: Twenty seven patients with BPH and 9 patients with prostate cancer participated in the study. Patients consumed aqueous garlic extract at the daily amount of 1 ml/kg weight for a month and then, pre- and post- disease parameters were examined. Results: Mass of prostate was found to be significantly lowered in the BPH group after extract consumption. Urinary frequency was established to be decreased, maximum and average rates of urine flow significantly increased after experimental period. In the cancer group, significantly lowered total and free PSA values were measured after extract consumption. No change was however observed in the mass of prostate of this group. The parameters of urinary frequency, maximum and average rates of urinary flow were also established to be significantly improved in the cancer group. Conclusions: Results suggest that garlic extract supplementation leads to significant improvement in disease parameters of the patients with BPH and PC.

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M. Basar

Kırıkkale University

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S. Ozcan

Kırıkkale University

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