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Biomedical subjects

Y Ozgök

Publications and source records attributed to Y Ozgök.

8 recordsLinked to original sources
PubMed2001

Diagnosis and treatment of ejaculatory duct obstruction in male infertility.

OBJECTIVE: To discuss the diagnosis and treatment of ejaculatory duct obstruction in male infertility. PATIENTS AND METHODS: Twenty-four males were treated for ejaculatory duct obstruction between 1994 and 1998 in our clinic. Patients' age varied between 20 and 40 (mean=29). Ejaculatory duct obstruction was considered in patients with low to normal ejaculate volume, azoospermia or oligospermia, decreased motility, normal serum gonadotropin and testosterone levels, absent or low fructose in the ejaculate and evidence of obstruction on transrectal ultrasonography. The definitive diagnosis was made by the absence of efflux of methylene blue injected through the vas during cytoscopy. All the patients were subjected to transurethral resection of ejaculatory ducts and spermograms before and 3 months after resection were compared. RESULTS: Before transurethral resection mean sperm count was 1.66x10(6)/ml compared to 25.4x10(6)/ml postoperatively. The difference was statistically significant (p=0.001). After the operation, 58.3% of the cases had improvement in sperm motility, and 62.5% had increased ejaculate volume. No significant complications occurred, and in only 1 (4.17%) patient, there was persistent hematuria. After a mean follow-up period of 9 (6-18) months, 6 (25%) pregnancies were noted. CONCLUSION: Although transurethral resection is an effective method for the treatment of ejaculatory duct obstruction, the pregnancy rate is low, which could be related to the hazardous effects of urinary reflux into ejaculatory ducts or functional abnormalities of seminal vesicles.

Adult↗
PubMed2000

Use of bladder mucosal graft for urethral reconstruction.

BACKGROUND: The ideal tissue for complex urethral reconstruction has yet to be determined, especially in patients with deficient preputium. The use of bladder mucosa as a free graft could be an alternative in these problem cases. METHODS: Bladder mucosa graft urethroplasty was performed on 14 patients with penoscrotal or scrotal hypospadias. The mean age of the patients was 18.7 (range 14-23) years. Ten cases were subjected to primary urethral reconstruction while four cases had previous hypospadias repair. RESULTS: Complete urethral replacement by the bladder mucosa tube was performed in six patients. Meatal problems occurred in two (33.33%) patients and proximal fistula formed in one (16.67%) patient. A bladder mucosa graft was combined with preputial or tunica vaginalis grafts distally in eight cases, and one patient in the tunica vaginalis group developed fistula at the anastomosis of the bladder mucosa and tunica vaginalis grafts. The overall complication rate was 28.6%. CONCLUSIONS: Our initial results showed that bladder mucosa grafts can be used successfully for urethral reconstruction especially when combined with preputial or tunica vaginalis grafts distally.

Adolescent↗
PubMed2000

Nephrogenic adenoma of the bladder after intravesical bacillus Calmette-Guérin treatment.

A 60-year-old female patient was subjected to transurethral resection of transitional cell carcinoma of the bladder and was given intravesical bacillus Calmette-Guérin treatment for 6 weeks. The control cytoscopy performed after 6 months revealed a polypoid lesion at the trigon and the lesion was resected. The pathological examination of the specimen showed no evidence of cancer but the presence of a metaplastic lesion that was nephrogenic adenoma.

Adenoma↗
PubMed1999

Effect of lower infundibulopelvic angle, lower infundibulum diameter and inferior calyceal length on stone formation.

The effect of anatomical factors such as lower infundibulopelvic angle (LIPA), lower infundibulum diameter (LID) and inferior calyceal length (ICL) on renal stone formation was investigated. These parameters were measured from noncalculous kidneys of 40 healthy kidney donors. The same parameters from 119 patients with single, unilateral, nonobstructive lower calyceal stone were also measured. LID and ICL were significantly higher in calculous kidneys when compared to the control group. On the other hand, the difference between the LIPA of the two groups was not significant. It is concluded that LID and ICL could be good indices in determining lower calyceal stone formation.

Female↗
PubMed1997

Extratesticular epidermoid cyst with extension into the pelvis.

We report a case of simple epidermoid cyst of the scrotum with extension into the pelvis. Complete excision was performed transcrotally and the presence of epidermoid cyst confirmed by histopathological examination. Simple excision was sufficient for treatment of this very rare lesion. The patient is now in the follow-up period.

Adult↗
PubMedDate not supplied

Reimplanted ureter as an alternative to the catheterizable Mitrofanoff tube.

OBJECTIVE: We performed this study in dogs to investigate whether a ureter can be used as an alternative to the appendix without disrupting the uniformity of the gastrointestinal system. MATERIALS AND METHODS: This study comprised 10 adult healthy female mongrel dogs. The procedure was done in 2 stages: in the first stage, we performed a left-end cutaneous ureterostomy at the lower left quadrant just above the inguinal ligament. A second operation was performed 6 weeks later. The left ureter was divided and using Paquin's technique, the proximal end of the distal third of the left ureter was reimplanted in the anterolateral surface near the dome of the bladder. A high transureteroureterostomy with the remaining left proximal ureter to the opposite ureter completed the reconstruction. The bladder neck was ligated in order to create an experimental bladder outlet obstruction. At the time of creating the distal ureteral stoma, a feeding tube was left in the bladder, passing through the ureterostomy stoma and sutured to the skin. This catheter remained in place for 20 days, preventing the bladder form distending. Then in the following 6 months, intermittent catheterization was applied through the stoma at 3- to 4-hour intervals. Exploration was performed at the end of the 6th month. RESULTS: No animal died. The dogs were still continent. Intravenous urography, urea and creatinin values were normal. The ureteral stoma was viable in all 10 cases. Stenosis of the ureteral stoma developed in 1 dog and required surgical revision. Possible traumatic effects were investigated by histological sections, but no harmful effects were found at the ureteral endothelium. CONCLUSION: This method may be an alternative to the Mitrofanoff method, which uses the appendix.

Animals↗