Biomedical subjects

Kadir Baykal

Publications and source records attributed to Kadir Baykal.

6 recordsLinked to original sources

PubMed2005

A peripheric neuromodulation technique for curing detrusor overactivity: Stoller afferent neurostimulation.

OBJECTIVE: To perform Stoller afferent neurostimulation (SANS) with and without a low-dose anticholinergic (oxybutynin hydrochloride) in patients with detrusor overactivity and compare the results obtained with the two therapeutic approaches. MATERIAL AND METHODS: A total of 43 patients with symptoms of detrusor overactivity (frequency, urgency, urge incontinence) underwent urodynamic studies (UDS). Those in whom UDS revealed phasic detrusor overactivity were evaluated using a quality of life questionnaire and voiding diaries. Patients were randomized into two groups: Group 1 received SANS alone; Group 2 received SANS combined with a low-dose anticholinergic (5 mg of oral oxybutynin hydrochloride). Both groups were re-evaluated following 8 weeks of therapy. RESULTS: There were 21 patients in Group 1 and 22 in Group 2. The treatment response rate was 61.6% and 83.2% in Groups 1 and 2, respectively. In both groups, the best symptomatic improvements were obtained in patients with urge incontinence. The percentage decreases in the mean number of symptoms of frequency and urgency were 36.7% and 46.1%, respectively in Group 1 and 44.2% and 61.1%, respectively in Group 2. However, there were no statistically significant differences in the effects on frequency and urgency between the two groups. The anticholinergic drug was well tolerated by all patients in Group 2. One patient reported local tenderness, and a small hematoma developed in another following SANS therapy. CONCLUSION: SANS is an easy and inexpensive therapeutic method with low morbidity in patients with an overactive bladder. Combination with a low-dose anticholinergic increases the success rate without causing any significant side-effects.

Administration, Oral↗

PubMed2005

Evaluation of the role of varicocelectomy including external spermatic vein ligation in patients with scrotal pain.

OBJECTIVES: The aim of the present study was to assess and compare pre- and postoperative scrotal pain in patients with varicocele who underwent varicocelectomy with different approaches. METHODS: The study included 144 consecutive patients with left-sided varicocele who had left scrotal pain for more than 3 months. All patients underwent varicocele ligation using either a subinguinal or inguinal approach with or without external spermatic vein ligation. We asked the patients to complete an 'Assessment Questionnaire for Scrotal Pain' both before and after the surgery. RESULTS: The surgery was successful in 101 (83.4%) of the 121 patients available for follow up. Seventy-four (61.1%) patients reported the complete resolution of pain while 27 patients (22.3%) reported partial resolution. Symptoms worsened in a single case and pain persisted postoperatively in 19 cases (15.7%). There were no statistically significant differences in the characteristics of the pain and grade of varicocele between postoperative groups. A significant difference was observed in postoperative success between patients who had external spermatic vein ligation and those who did not, regardless of the surgical approach (inguinal or subinguinal). All patients who reported complete or partial resolution of pain stated that they would recommend surgery to relatives with the same problem. CONCLUSIONS: Varicocelectomy using either inguinal or subinguinal approaches is an effective and reasonable treatment option in this patient group and should include external spermatic vein ligation for a satisfactory outcome.

Adult↗

PubMed2005

Intravesical heparin and peripheral neuromodulation on interstitial cystitis.

INTRODUCTION: We wanted to evaluate the therapeutic effect of intravesical heparin and peripheral neuromodulation on patients with interstitial cystitis. MATERIALS AND METHODS: From March 2002 to August 2003, 8 female and 2 male subjects conform to the NIDDK criteria and not responsive to the previous conventional treatments were included in the study. Wisconsin pain scores, maximal cystometric capacities, and night and day voiding frequencies were determined and these studies were repeated in the 2nd and 12th months of the treatment with 10,000 units intravesical heparin and peripheral neuromodulation. Frequency of the treatment was once a week during first 8 weeks, once in 2 weeks in the following 8 weeks, and once in 3 weeks four times. Then, it was decreased to once a month. RESULTS: The mean follow-up period was 13 months (12-16 months). Day and night voiding frequency were significantly better in the 2nd and 12th months, when compared to pretreatment values. The Wisconsin pain scores were 62.5 +/- 13.9% and 62.8 +/- 15.2% in the 2nd and the 12th months, respectively. The average increase in the maximum cystometric capacity was 54.8 +/- 27.4% and 52.5 +/- 31.6% in the 2nd and the 12th months, respectively. CONCLUSIONS: Intravesical heparin and peripheral neuromodulation combination seems to be an alternative for patients with interstitial cystitis not responsive to other treatments.

Administration, Intravesical↗

PubMed2004

A new testis prosthesis material: polymethylmethacrylate.

INTRODUCTION: Silicone has been the standard prosthesis material for the last three decades but new materials are being searched because of the known disadvantages of silicone such as migration and high cost. We wanted to test in rats whether or not polymethylmethacrylate could be an alternative to silicone. MATERIALS AND METHODS: We prepared polymethylmethacrylate and silicone testis prostheses which were similar to testis size of rats. Eleven rats were implanted with polymethylmethacrylate, 11 others were implanted with a silicone prosthesis and sham operation was performed in 10 rats. Three months later the scrotums of the animals were removed with the prosthesis for a quantitative analysis of the chronic inflammation and fibrotic reaction and to measure the thickness of the capsule. RESULT: Rejection and infection were not observed in any of the prosthesis-implanted rats. Both prosthesis groups displayed increased vascularization, hemosiderin accumulation and fibrotic and hyalinized tissue formation that replaced the muscle. Chronic inflammation was measured and found to be higher in the polymethylmethacrylate group and the difference was not found to be significant. The average thicknesses of the capsules around the polymethylmethacrylate and silicone groups were found to be 58.4 and 46.8 microm, respectively, and that difference was not significant again. CONCLUSIONS: In the short term polymethylmethacrylate was equally well tolerated, but the low cost of polymethylmethacrylate made it more advantageous.

Animals↗

PubMed2003

Histopathologic changes in the mucosa of ileal orthotopic neobladder--findings in 24 patients followed up for 5 years.

OBJECTIVE: To evaluate changes occurring in the mucosa of the neobladder over a period of 60 months in 24 patients with orthotopic ileal neobladder. MATERIALS AND METHODS: A total of 36 male patients have undergone radical cystoprostatectomy and received an orthotopic ileal neobladder in our hospital during the last 10 years; 24 of these patients, all of whom completed a follow-up period of 60 months, are included in this study. All cases underwent a biopsy of the ileal mucosa at the time of surgery and their neobladder mucosa was then biopsied at 6, 12, 24, 36 and 60 months. The specimens were stained with hematoxylin-eosin in order to examine the changes in the thickness of the mucosa and its villi. Sections were also stained with Alcian blue and periodic acid-Schiff in order to determine the number of goblet cells. A morphometric scoring system was created to quantify the change in villi size. RESULTS: The mean thickness of the ileal mucosa at the initial biopsy was 270.9 +/- 35.9 microm and displayed a continuous decrease at all of the subsequent biopsies. The number of luminal goblet cells increased during follow-up. Villus atrophy was found to be a continuous process during follow-up. No dysplasia or malignancy was detected in any of the biopsies. CONCLUSION: During a follow-up period of 5 years, there were no neoplastic changes in our patients, but instead a protective response of the mucosa to its new environment was observed.

Aged↗

PubMed2002

Hypospadias in adults.

OBJECTIVES: To review the follow-up data and complications of adult patients who underwent hypospadias surgery. METHODS: The records of 88 male patients with an average age of 21.9 years (range 20 to 27) who were operated on for hypospadias from 1996 to 2001 were reviewed in two groups: primary cases and all others (at least one unsuccessful attempt to correct the hypospadias). The primary cases consisted of 48 anterior, 9 middle, and 2 proximal hypospadias; the second group consisted of 16 urethrocutaneal fistula, 8 hypospadias, and 5 cripple cases. RESULTS: The complication rate was 10.1% for the first group and 27.5% for the second group. After the second intervention in groups 1 and 2, the overall success rate was 100% and 89.6%, respectively. CONCLUSIONS: Adult hypospadias is repaired with the techniques used in pediatric cases. However, the postoperative complication rate is higher, and these patients more often require multiple interventions.

Adult↗