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Dive into the research topics where Ahmet Tefekli is active.

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Featured researches published by Ahmet Tefekli.


The Journal of Urology | 2002

A Retrospective Review of 307 Men With Peyronie’s Disease

Ates Kadioglu; Ahmet Tefekli; Bulent Erol; Tayfun Oktar; Murat Tunc; Sedat Tellaloglu

PURPOSE We discuss the clinical appearance and natural outcome of Peyronies disease. MATERIALS AND METHODS During an 8-year period 307 men with Peyronies disease were evaluated, and clinical characteristics, risk (factors), penile deformities, erectile status and outcome were analyzed. RESULTS Mean patient age plus or minus standard deviation was 52.8 +/- 9.3 years (range 23 to 76). Penile deformity, pain on erection and palpable nodule were the most common (85%) presenting symptoms, usually in different combinations. The remaining 15% of men (mean age 59.4 +/- 6.5 years) were not aware of the penile deformity and were diagnosed during standard evaluation for erectile dysfunction. Dorsal (45.6%) and lateral (29.3%) were the most common curvatures. The degree of deformity was less than 30 degrees in 42.7% of patients, 31 to 60 degrees in 38.8% and greater than 60 degrees in 18.6%. At least 1 risk factor for systemic vascular disease was identified in 67.5% of patients, and hypercholesterolemia and diabetes were the most common. Patients with at least 1 risk factor had a significantly higher risk for severe penile deformity. Of the men 54.4% complained of erectile dysfunction and the probability of diminished erectile capacity was 86.7% in patients older than 60 years, with Peyronies disease for more than 12 months and at least 1 risk factor. Of 63 patients presenting with the acute phase of disease penile deformity deteriorated in 30.2%, did not change in 66.7% and resolved spontaneously in 3.2% without any treatment after a mean followup of 8.4 months. CONCLUSIONS Our data show that penile deformities are disabling (greater than 30 degrees) in 62.5% of cases. Risk factors, such as serum lipid abnormalities, diabetes and hypertension, seem to have significant impact on the severity of symptoms and outcome. Patients must be informed that Peyronies disease is progressive in 30.2% without treatment and spontaneous resolution is rare.


Urology | 2000

Comparison of results and complications of high ligation surgery and microsurgical high inguinal varicocelectomy in the treatment of varicocele.

Selahittin Çayan; Teoman Cem Kadioglu; Ahmet Tefekli; Ates Kadioglu; Sedat Tellaloglu

OBJECTIVES To prospectively compare sperm parameters, pregnancy and recurrence rates, and complications after randomized high ligation surgery versus microsurgical high inguinal varicocelectomy (MHIV). METHODS Varicocele was diagnosed by physical examination and color Doppler ultrasound in 468 patients who underwent one of two procedures: high ligation surgery (n = 232) or MHIV (n = 236). The high ligation surgery was left unilateral in 142 and bilateral in 90. The MHIV was left unilateral in 128 and bilateral in 108. The patients were postoperatively evaluated by spermiograms and physical examination. The pregnancy rate was monitored for 2 years. RESULTS One year after surgery, 34.05% in the high ligation group and 46.61% in the MHIV group had a more than 50% increase in their total motile sperm count (P = 0.000). The increase in sperm count was not statistically different between the two groups (P = 0.1), but the difference in the increase in sperm motility in the MHIV group was statistically significant (P = 0.000). Pregnancy rates at the end of 2 years reached 33.57% in the high ligation group and 42.85% in the MHIV group, not a statistically significant difference (P = 0.0571). The postoperative recurrence as detected by physical examination was markedly different between the two techniques. The recurrence rate was 15.51% in the high ligation group and 2.11% in the MHIV group (P = 0.000). Also, the incidence of postoperative hydrocele was significantly different between the two groups (9.09% in the high ligation group and 0.69% in the MHIV group; P = 0.000). CONCLUSIONS MHIV has lower recurrence and hydrocele rates, a higher increase in sperm motility, and results in higher pregnancy rates. Therefore, it should be the preferred technique for varicocelectomy.


Journal of Sex & Marital Therapy | 2002

Sexual Dysfunction in Type II Diabetic Females: A Comparative Study

Bulent Erol; Ahmet Tefekli; Isa Ozbey; Fatih Salman; Nevin Dinçağ; Ates Kadioglu; Sedat Tellaloglu

Diabetes Mellitus (DM) is considered to play a principle role in the etiopathogenesis of sexual dysfunction both in men and women. The aim of this study is to evaluate sexual function in Type II diabetic women. A total of 72 young diabetic women (mean age: 38.8 years) with no other systemic diseases and 60 age-matched healthy women were enrolled in our study. We sought from them a detailed medical and sexual history and used the Index of Female Sexual function (IFSF) questionnaire (Kaplan et al., 1999). The mean IFSF score of diabetic women was 29.3 - 6.4 and was 37,7 - 3.5 in normal cases ( p < 0.05). Lack of libido was the most common symptom in diabetics and was observed in 77% of the women. Diminished clitoral sensation was observed in 62.5% of the women, 37.5% complained of vaginal dryness and 41.6% had vaginal discomfort. Orgasmic dysfunction was found in 49% of the women. The incidence of all these related symptoms were significantly higher when compared to controls. We concluded that significant percentage of diabetic women that we observed experience sexual dysfunction of varying degrees that diminishes their quality of life.


International Journal of Impotence Research | 2000

Treatment of Peyronie's disease with oral colchicine : long-term results and predictive parameters of successful outcome

Ates Kadioglu; Ahmet Tefekli; T Köksal; Mustafa F. Usta; H Erol

As recent clinical and animal studies have indicated, colchicine, with its anti‐fibrotic, anti‐mitotic and anti‐inflammatory activities, has suppressive effects in the pathogenesis of Peyronies disease.Oral colchicine treatment was initiated in 60 Peyronies patients during their acute phase (mean duration of disease: 5.7±4.3 months). Long‐term results, based on changes of subjective and objective criteria, were assessed and predictive factors of successful outcome were investigated. After a mean follow‐up of 10.7±4.7 months, the penile deformity improved in 30%, remained unchanged in 48.3% and deteriorated in 21.7%. Pain resolved in 95%. Best results were obtained in those with no risk factor for vascular disease, presenting during the initial 6 months of disease, degree of curvature <30°, no erectile dysfunction by history and positive response to combined injection and stimulation test.In conclusion since tunica albuginea is affected as a whole in Peyronies disease, systemic oral agents, such as colchicine, may be preferred in the early phase of the disease.


Journal of Endourology | 2011

Factors Affecting Bleeding During Percutaneous Nephrolithotomy: Single Surgeon Experience

Tolga Akman; Murat Binbay; Erhan Sari; Emrah Yuruk; Abdulkadir Tepeler; Muzaffer Akcay; Ahmet Yaser Muslumanoglu; Ahmet Tefekli

PURPOSE To investigate variables that affect bleeding during percutaneous nephrolithotomy (PCNL), focusing on the experience of a single surgeon. PATIENTS AND METHODS The records of 649 PCNL procedures that were performed by the same surgeon were reviewed retrospectively. The effect of surgical experience; patient and stone-related factors, including age, sex, hypertension, and diabetes, serum creatinine level, history of ipsilateral renal procedures, stone surface area and type, degree of hydronephrosis, preoperative hemoglobin level; operative factors, such as the calix of puncture, number of accesses, operative time; and intraoperative complications, such as pelvicaliceal system perforation on bleeding (described as decrease in hemoglobin level and need for blood transfusion), were investigated. For statistical assessment, univariate analyses and multivariate stepwise regression analyses were used. RESULTS A 92.3% success rate was achieved after one session PCNL. The overall blood transfusion rate was 10.8%. The number of accesses, stone type, diabetes, preoperative hemoglobin level, and operative time were the most important factors for blood transfusion requirement. In the receiver operating characteristic curve, the best cutoff point of operative time was 58 minutes for the blood transfusion requirement. Multivariate stepwise regression analyses showed that there was an association between diabetes, operative time, number of accesses, and stone type with the decrease in hemoglobin levels. No correlation between surgical experience and decrease in hemoglobin level as well as blood transfusion necessity was found. CONCLUSIONS Depending on the results achieved by a single surgeon, multiple access tracts, staghorn calculi, presence of diabetes, and prolonged operative time, but not surgical experience, significantly increased blood loss during PCNL.


Urologia Internationalis | 2006

Impact of Percutaneous Access Point Number and Location on Complication and Success Rates in Percutaneous Nephrolithotomy

Ahmet Yaser Muslumanoglu; Ahmet Tefekli; Mert Ali Karadag; Adem Tok; Erhan Sari; Yalcin Berberoglu

Objectives: Percutaneous nephrolithotomy (PNL) is sometimes associated with complications, especially in patients with complex stones. Herein, we review our experience with PNL to determine the impact of percutaneous access number and location on success and complication rates. Patients and Methods: During a 2-year period, a total of 275 patients with a mean age of 42.3 ± 14.8 (range: 13–75) years underwent PNL. Stones were classified as simple in 51.6%, and complex (staghorn calculi or renal pelvis stones coexisting with caliceal stones) in 48.4%. Percutaneous access was done under C-armed fluoroscopy and the tract was formed with a high-pressure balloon dilation system. One single percutaneous access was sufficient in 210 (76.4%), while 2 accesses were utilized in 44 (16%), and ≧3 accesses in 21 cases (7.6%). Supracostal access was performed in 23 (8.4%) patients. Results: An overall success rate of 94.9% was achieved. Stone location, but not the access point location, was the major determinant for success, which was 99.3 and 90.2% in patients with simple and complex stones, respectively (p < 0.01). Significant complications included bleeding necessitating blood transfusion in 28 (10.2%), and hydropneumothorax in 2 (0.7%) patients. Bleeding was observed in 39.1 and 7.5% of patients managed with supracostal access, and subcostal access, respectively (p < 0.01). An increased number of access points significantly augmented the risk for bleeding. Bleeding was encountered in 7.6% of patients managed with 1 percutaneous access point, and in 18.5% of cases managed with ≧2 access points (p < 0.05). Hydropneumothorax occurred in patients with supracostal access. Conclusion: Supracostal access as well as multiple punctures may be needed especially in the management of complex stones, and the need for multiple access points and supracostal access significantly increases complication rates.


International Journal of Impotence Research | 2003

Does sexual dysfunction correlate with deterioration of somatic sensory system in diabetic women

Bulent Erol; Ahmet Tefekli; Oner Sanli; Orhan Ziylan; Abdullah Armagan; Muammer Kendirci; D Eryasar; Ates Kadioglu

To evaluate genital and extragenital somatic sensory system in diabetic women using biothesiometry and investigate the relation with sexual dysfunction. A total of 30 diabetic women and 20 normal sexually active women as a control group were evaluated with a detailed medical and sexual history including Index of Female Sexual Function (IFSF) questionnaire. Somatic sensory system of all women enrolled to the study was assessed by biothesiometry and threshold sensory values of nine genital sites and 14 extragenital sites were analyzed. The IFSF score in diabetic women was 23.6 while it was 38.3 in the control group (<0.0005). For each genital as well as extragenital sites, the mean biothesiometric values were significantly higher in diabetics. The sensation of introitus vagina, labium minora and clitoris were found to be the most deteriorated genital sites in diabetic women. The difference between diabetic women with or without female sexual dysfunction (FSD) was not significant for biothesiometric values. Our data indicate that, somatic sensory system is affected by diabetes however sexual dysfunction does not always manifest.


International Journal of Impotence Research | 2001

Peyronie's disease in men under age 40: characteristics and outcome.

Ahmet Tefekli; Engin Kandirali; H Erol; T Alp; T Köksal; Ates Kadioglu

Peyronies disease is most commonly seen in the fifth decade of life. However, a wide range of age (20–83 y) is reported. During a 6-year period, men with Peyronies disease presenting under the age of 40 were reviewed retrospectively and followed-up. The prevalence of Peyronies patients presenting under age 40 was 8.2%. Their mean age was 32.47±5.37 (range: 23–39) y and 78.9% of them presented during the acute phase of the disease. Pain on erection was a part of presenting symptom complex in 52.6% and the majority (84%) had a degree of penile curvature <60°. Erectile dysfunction (ED) was present in 21% of patients, who responded well to intracavernous injection test. After a minimal 2-year follow-up, improvement in penile deformity was observed in 36.8%, and 42.1% had stable disease while 21% experienced deterioration of the penile curvature. The onset of Peyronies disease is clinically more noisy and acute in patients presenting under age 40 and this forces the physicians to treat them more vigorously.


Urologia Internationalis | 2003

Metabolic Risk Factors in Pediatric and Adult Calcium Oxalate Urinary Stone Formers: Is There Any Difference?

Ahmet Tefekli; Tarik Esen; Orhan Ziylan; Bulent Erol; Abdullah Armagan; Haluk Ander; Mustafa Akinci

Objectives: Urolithiasis in children is recognized with an increasing frequency, while exact etiological factors remain to be determined. The aim of this study is to compare the metabolic risk factors and saturation of urine in pediatric and adult calcium oxalate (Ca-Ox) stone formers. Methods: A total of 33 pediatric (mean age: 6.8 ± 3.1 years) and 120 adult patients (mean age: 39.7 ± 5.7 years), with documented Ca-Ox urinary stone disease, underwent a comprehensive metabolic evaluation at our institution. Beside a broad serum analysis, concentrations of calcium, oxalate, magnesium, uric acid and citrate were measured in 24-hour collected urine. Saturation of urine was calculated by Marshall-Robertson’s nomograms. Results: Hypocitraturia, observed in 60.6%, and hypomagnesuria, detected in 39.4%, but not hypercalciuria, were the most common metabolic risk factors in the pediatric group. In adults, hypercalciuria still represented one of the major metabolic risk factors, detected in 44.1%, although hypocitraturia, observed in 45.8%, was the most prevalent metabolic risk factor, as it was in the pediatric group. Pediatric cases had significantly (p < 0.05) higher prevalence of hypocitraturia, hypomagnesuria and supersaturated urine when compared to adults. Metabolic abnormalities could be detected in a high percentage (82%) of primary and recurrent pediatric Ca-Ox stone formers, but not in primary adult stone formers. Conclusions: Metabolic risk factors significantly differ in pediatric and adult Ca-Ox stone formers. Hypocitraturia and hypomagnesuria seem to play a major role in stone formation, and metabolic abnormalities can be detected in a significant percentage of both primary and recurrent pediatric stone formers. Thus, a comprehensive metabolic evaluation is of utmost importance for all children with Ca-Ox stones.


Journal of Endourology | 2011

Clinically insignificant residual fragments after percutaneous nephrolithotomy: medium-term follow-up.

Fatih Altunrende; Ahmet Tefekli; Robert J. Stein; Riccardo Autorino; Emrah Yuruk; Humberto Laydner; Murat Binbay; Ahmet Yaser Muslumanoglu

BACKGROUND AND PURPOSE Clinically insignificant residual fragments (CIRFs), defined as asymptomatic, noninfectious, ≤4  mm fragments, are sometimes observed after percutaneous nephrolithotomy (PCNL). Because the natural history of these fragments is unclear, we investigated the medium-term outcome of these fragments. PATIENTS AND METHODS During a 3-year period, 430 patients underwent PCNL. Overall stone-free rate was 74.5%, and CIRFs were encountered in 22% of cases 3 months after surgery. A total of 38 patients who had CIRFs immediately after PCNL with at least 24 months of follow-up were included in the study. All patients were subjected to periodic follow-up with detailed history, clinical examination, and radiographic follow-up. Serum biochemistry together with urine metabolic evaluation was also performed. RESULTS The median follow-up was 28.4±5.3 months (range 24-38  mos). Ten (26.3%) patients had a symptomatic episode that necessitated medical therapy during follow-up while others remained asymptomatic. Radiologic assessment showed an increase in the size of the fragments in 8 (21.1%) patients, while the size of the fragments was stable or decreased in 27 (71.1%) cases. Three (7.9%) patients had spontaneous stone passage. Metabolic evaluation revealed abnormalities in 10 (26.3%) patients. Stone analysis revealed magnesium ammonium phosphate in three of eight patients who had an increase in residual fragment size. Also, only two of these eight patients had a metabolic abnormality (one hypocitraturia and one hypercalciuria). CONCLUSION Medium-term follow-up of CIRFs after PCNL revealed that progression within 2 years is relatively common. Increase in fragment size is common in patients with struvite stones, and presence of risk factors on 24-hour urine metabolic analysis does not seem to predict growth of observed fragments.

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Engin Kandirali

Abant Izzet Baysal University

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Bulent Erol

Zonguldak Karaelmas University

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