Önder Kayıgil
Yıldırım Beyazıt University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Önder Kayıgil.
The Journal of Urology | 1999
Önder Kayıgil; Syed Iftekhar Ahmed; Ahmet Metin
PURPOSE We investigate the coexistence of intrinsic sphincter deficiency and urethral hypermobility with type II stress incontinence and moderate cystocele. MATERIALS AND METHODS Abdominal leak point pressure measurements were performed during cystometric evaluation with Valsalvas maneuvers in 50 consecutive women 33 to 73 years old (mean age 48.8) diagnosed with urethral hypermobility and moderate cystocele on pelvic examination and cotton swab test. Patients with unstable detrusor contractions or urgency with detrusor hypocompliance were excluded from the study. RESULTS Of the 50 women 36 (72%) had pure urethral hypermobility, and 14 (28%) were diagnosed with intrinsic sphincteric deficiency and hypermobility (mixed incontinence group), including 6 (42.8%) who had undergone previous surgery. No predisposing factor responsible for intrinsic sphincteric deficiency was noted in 8 mixed incontinence group patients (57.2%). CONCLUSIONS The high rate of intrinsic sphincteric deficiency in patients with urethral hypermobility indicates that the incidence with stress incontinence may be greater than previously believed, and may influence the apparently higher failure rates after bladder neck suspension. We believe that leak point pressure measurements are not necessary with sling procedures which correct urethral hypermobility and intrinsic sphincter deficiency but are required if bladder neck suspension is planned.
Journal of Endourology | 2009
Kemal Ener; Koray Agras; Mustafa Aldemir; Emrah Okulu; Önder Kayıgil
PURPOSE Endoscopic treatment of large bladder stones via cystoscope is still bothersome, and open cystolithotomy is the preferred method in many centers. To gain more insight into the endoscopic bladder stone management, we aimed to compare the transurethral use of nephroscope and cystoscope randomly. PATIENTS AND METHODS Forty-three male patients with bladder stones were randomized into two groups, to perform nephroscopic (group 1, n = 22) and cystoscopic (group 2, n = 21) stone fragmentation procedures transurethrally. Combined pneumatic/ultrasonic lithotripsy device was used in both groups to fragment the bladder stones. RESULTS The mean stone size in group 1 and group 2 was 3.6 +/- 1.3 cm and 3.5 +/- 1.6 cm, respectively (p > 0.05). Stone fragments were removed completely in all of the patients, and the mean operation time was calculated as 48.2 +/- 13.2 minutes in group 1 and 68.1 +/- 22.7 minutes in group 2, with no intraoperative complications (p < 0.01). None of the patients developed urethral stricture disease in the early (postoperative third month) follow-up. Three patients with previously known urethral stricture disease have shown to have the same disease in the late (postoperative 14.4 +/- 5.1 months) follow-up. CONCLUSION Treatment of large bladder stones by transurethrally placed nephroscope is a fast and effective treatment modality compared to endoscopic treatment via cystoscope. Nephroscope allows for use of larger forceps and facilitates collection of large stone fragments through its 24F sheath. It also prevents multiple entries to the urethra and hence avoids possible urethral injury. Combined pneumatic/ultrasonic lithotripsy device, with its aspiration quality, enables the surgeon to gain a better endoscopic view during both procedures.
International Journal of Impotence Research | 2011
Mustafa Aldemir; Emrah Okulu; S Neşelioğlu; O Erel; Önder Kayıgil
We investigated the effects of Antep pistachio on International Index of Erectile Function (IIEF) scores, penile color Doppler ultrasound (PCDU) parameters and serum lipid levels in patients with ED. A total of 17 married male patients with ED for at least 12 months were included in this prospective study. Patients were put on a 100 g pistachio nuts diet for 3 weeks. IIEF and PCDU were evaluated before and after the pistachio diet. In addition, plasma total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL) and triglyceride were measured before and after dietary modifications from all subjects. Mean IIEF-15 score was 36±7.5 before the diet and 54.2±4.9 after the diet (P=0.001). Similarly, an increase in all five domains of IIEF was observed after the diet (P<0.05). Mean peak systolic velocity values before and after the pistachio diet were 35.5±15.2 and 43.3±12.4 cm s–1, respectively (P=0.018). After the pistachio diet, TC and LDL levels decreased significantly, whereas HDL level increased (P=0.008, 0.007 and 0.001, respectively). We demonstrated that a pistachio diet improved IIEF scores and PCDU parameters without any associated side effects in patients with ED. Furthermore, the lipid parameters showed statistically significant improvements after this diet.
BJUI | 2012
Önder Kayıgil; Emrah Okulu; Mustafa Aldemir; Efe Onen
Study Type – Therapy (case series)
International Urology and Nephrology | 1996
Önder Kayıgil; Ö. Atahan; Ahmet Metin
We determined arterial venous and sinusoidal factors in 20 patients with insulin dependent diabetes mellitus and erectile dysfunction by performing dynamic infusion cavernosometry (DIC), colour flow Doppler ultrasonography, penile biothesiometry and corpus cavernosum electromyography (CCE).DIC, colour flow Doppler ultrasonography and penile biothesiometry were done in standard fashion except for CCE. Paradoxical increase in the electrical activity of corpus cavernosum after intracavernous (IC) papaverine was called a discoordination that was due to cavernous smooth muscle contraction instead of relaxatoon.Arterial and accompanying pathologies were found in 10 (50%) patients. In 3 (15%) of them pure arterial pathology, in 6 (30%) patients arterial and veno-occlusive dysfunction (VOD) and in one patient arterial pathology with abnormal biothesiometry were found.VOD and accompanying pathologies were found in 12 (60%) patients. In 6 (30%) of them VOD and arterial, in 4 (20%) patients VOD and discoordination and in 2 (10%) patients VOD and abnormal biothesiometric values were present. A higher frequency and coexistence of VOD and discoordination pattern were observed.In conclusion, patients with diabetic impotence show a wide range pathophysiology of erection and the evaluation of these patients must include multistep techniques.
The Journal of Urology | 1996
Önder Kayıgil; Ö. Atahan; Ahmet Metin
PURPOSE We compared electrical activity of the corpus cavernosum after intracavernous papaverine and nitroprusside injections. Some aspects of the androgen modulator system in patients with veno-occlusive dysfunction are discussed. MATERIALS AND METHODS Electromyography of the corpus cavernosum was performed before and 1 day after intracavernous injection of 60 mg. papaverine and 400 micrograms. sodium nitroprusside in 22 patients with veno-occlusive dysfunction. Changes in duration and amplitude of electromyographic potentials were compared in groups with and without incoordination patterns. RESULTS The decreases in electrical amplitude and duration in 15 patients with a negative incoordination pattern, and increases in 7 with a positive pattern were more significant with intracavernous sodium nitroprusside than with papaverine injections. CONCLUSIONS Electromyographic changes were more prominent with nitroprusside than with papaverine, which demonstrates the use of nitroprusside when performing corpus cavernosum electromyography.
Urologia Internationalis | 2010
Önder Kayıgil; Koray Agras; Mustafa Aldemir; Emrah Okulu
Introduction: This study aimed to investigate the surgical results of incision and vein grafting combined with two types of plication sutures, including Essed-Schroeder and longitudinal imbrication, to correct the cavernous sacculation in complex curvature resulting from Peyronie’s disease. Material and Methods: Between 2004 and 2008, 15 patients with complex curvature resulting from Peyronie’s disease were surgically treated. Essed-Schroeder plication and venous grafting were performed in 10 patients. Five of the 15 patients had cavernous sacculation, which was defined as albugineal elongation, except for the normally morphological cavernosal structure, which caused some degree of penile torsion beside the angulation. Surgery was used to establish sufficient cosmetic results by performing longitudinal imbrication on the cavernous sacculation on the same side as that of the Essed-Schroeder plication combined with venous grafting in these five patients. Results: Complete penile straightening was achieved in all the patients. Two patients (13.3%) reported penile shortening without showing dissatisfaction about it. One patient complained of anesthesia on part of the skin of the penile shaft. All the patients were satisfied with the final surgical results. Conclusions: A combination of the surgical methods might be necessary to correct the complex deformities due to Peyronie’s disease. Further studies with larger patient populations are needed to standardize these procedures.
International Urology and Nephrology | 2002
Ahmet Metin; Önder Kayıgil; S. İftekhar Ahmed
Purpose:To evaluate the results of plaque incision and venous patch grafting to correct the dorsal curvature associated with Peyronies disease.Materials and methods:18 patients with Peyronies disease were treated surgically. All of the patients have dorsal penile curvature for more than one year causing intromission impossible or with some difficulty because of curvature. Median penile angulatio was 60° (range 45°–75°). A transverse incision about 2 cm long was made on the plaque where maximal site of curvature was identified. The saphenous vein harvested from the ankle region is opened longitudinally and its endothelial surface is placed and sutured in contact with the tunical defect.Results:Complete penile straightening was achieved in 16 (88.8%) cases and only two patients have residual curvature less than 30° permitting sexual intercourse. None of the patients returned to baseline preoperative angulation state in the follow up period. 3 patients (16.6%) reported penile shortening, but only one was concerned and showed dissatisfaction about it. 6 patients (33.3%) have transient changes in penile sensation that resolved within 4 months.Conclusions:Plaque incision and placement of saphenous vein patch graft offers a 94.4% satisfactory result in Peyronies disease causing penile dorsal curvature.
European Urology | 1998
Önder Kayıgil; Ali Ergen
We attempted to identify the etiology of erectile dysfunction in 50 male patients with a mean age of 31.4 (25–42) years. The physical and neurological examinations, history, biochemistry and serum testosterone and prolactin levels were within normal limits. Pharmacopenile duplex ultrasonography, corpus cavernosum electromyography (CC-EMG) and cavernosometry were performed. Smooth muscle tone and the relaxation response after intracavernous papaverine and sodium nitroprusside injections were evaluated by CC-EMG. Autonomic dysfunction has been defined as increased electrical activities after visual sexual stimulation and lowered amplitudes despite normal smooth muscle content. Our definition is similar to this: paradoxically increased electrical activities after intracavernous injection. Caverno-occlusive dysfunction (COD) and accompanying pathologies were found in 38 patients (76%) with pure COD in 26 (52%), COD and arterial pathology in 2 (4%) and COD + autonomic dysfunction in 10 patients (20%). Amplitudes of cavernous electrical activity were low in 32 of 38 patients with COD. These high COD and autonomic dysfunction rates led us to examine these pathologies on molecular and electrophysiological bases.
Andrologia | 2012
Mustafa Aldemir; G. Özgün; Efe Onen; Emrah Okulu; Önder Kayıgil
We investigated the effects of quercetin on pathological findings on testicular ischaemia–reperfusion (I/R) injury in rats. Twenty‐four male Wistar albino rats were randomly assigned into four groups: Group 1, control (n = 5); Group 2, sham (n = 4); Group 3, I/R (n = 8); and Group 4, I/R + quercetin (n = 7). Bilateral testicular artery and vein were occluded for 1 h, followed by reperfusion in I/R and I/R + quercetin animals. Quercetin (20 mg kg−1 per day) was administrated once daily by gavage to Group 1 and Group 4, respectively, after reperfusion. At the end of the study, bilateral orchiectomies were performed for histopathologic examination. The tissue damage was evaluated with light microscopy. Normal inter‐stitium and seminiferous tubules were observed in control group. In the sham group, rats were seen minimal oedema around the seminiferous tubules and congested vascular structures. In Group 3, oedema, vascular congestion and haemorrhage between seminiferous tubules were observed. In Group 4, histopathologic features were markedly less than Group 3 (P = 0.03). Our study demonstrated that quercetin seems to have a protective effect on testis histopathology in rats with testicular I/R.