Closure of urethral fistulas with double opposing Z-plasty flaps.
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Fistula↗
Biomedical subjects
A Atan
Publications and source records attributed to A Atan.
Re: Prostate tissue composition and response to finasteride in men with symptomatic benign prostatic hyperplasia.
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Age Factors↗
New drainage technique in the ureteropelvic junction obstructions. Side-to-side ureterocalicostomy (or ureterocaliceal by-pass) preserving renal pelvis and ureteropelvic junction.
We present a new ureterocalicostomy technique in a patient with intrarenal pelvis together with renal artery compression on the pelvis and ureteropelvic junction (UPJ). The patient had grade 4 hydronephrosis in the left kidney and angulation at the ureteropelvic junction. We performed side-to-side ureterocalicostomy between the ureter and lower calyx of the kidney.
Adult↗
A case of hydatid disease with unusual localizations.
All organs in the human body may suffer from hydatid disease. Urinary tract involvement in hydatid disease is not common including only 2-4% of cases. The kidneys are the most commonly affected organs in the urinary tract, with other organs rarely affected alone. We report a case of hydatid disease presented with acute urinary retention due to retrovesical hydatid cyst, together with a communicating renal hydatid cyst and a cyst in the right gluteal muscle.
Aged↗
Comparative study between corpus cavernosum-electromyography findings and electron microscopy of cavernosal muscle biopsies in erectile dysfunction patients.
BACKGROUND: Biopsy and electrical activity recordings of the corpus cavernosum are 2 new diagnostic methods for the evaluation of impotent men. We evaluated the corpus cavernosum ultrastructure and electromyography (EMG) recordings from patients with erectile dysfunction. METHODS: Twenty erectile dysfunction patients with veno-occlusive dysfunction underwent a detailed history, physical examination, biochemical tests, hormonal analysis, injection of an intracavernous vasoactive agent (60 mg papaverine-HCl), color penile Doppler ultrasonography, cavernosometry/ cavernosography and corpus cavernosum electromyography (CC-EMG). Thirteen patients underwent total vein ligation and 7 had penile prosthesis implantations. Tissue samples were obtained during surgery from both corpora cavernosa and examined by transmission electron microscopy. Control corporal tissue samples were taken from 3 cadavers. RESULTS: In 15 patients, CC-EMG recordings were 15.6 +/- 0.65 microV in the flaccid state, which decreased in 13 patients after papaverine (5.61 +/- 0.25 microV; P < 0.001). Five patients with diabetes mellitus had low amplitudes in the flaccid state (5.26 +/- 0.45 microV), which did not vary significantly after a papaverine injection (4.99 +/- 0.75 microV). The pathology of the corpus cavernosum biopsy specimens revealed a smooth muscle cell thickened basal membrane, dilated rough endoplasmic reticulum, and increased numbers of fibroblasts, but ultrastructurally normal endothelial cells lining the sinusoids. There was no difference between samples from diabetic or nondiabetic patients, or from either side of the corpora cavernosa. The only pathologic change observed in the controls was mitochondrial swelling. CONCLUSION: CC-EMG is less invasive and a valuable method in patients with erectile dysfunction, whereas no specific findings were observed from penile biopsy specimens.
Adult↗
Pressure-flow studies: an evaluation of within-testing reproducibility--validity of the measured parameters.
The within-examination variation in selected test parameters in repeated pressure-flow studies was determined in a retrospective study of consecutive pressure-flow examinations in 105 patients. It was further evaluated to see whether there was a systematic change in the measured parameters during retesting. To see if variation and reproducibility were influenced by the procedure of investigation, i.e., transurethral or suprapubic, patients were grouped according to the method employed. Finally, the effect of detrusor instability on the measurements was evaluated. Using the Abrams-Griffiths nomogram, patients were classified as obstructed, equivocal, or unobstructed. The test-retest variations in classification were evaluated. We found a systematic variation in Pdet.Qmax' Pdet.Open' and Qmax during testing, indicating a physiological effect of repeated pressure-flow studies resulting in a less obstructed second voiding. Accordingly, 69% of the patients who shifted group of classification during retesting shifted to a group of lesser obstruction at the second voiding. Still, 88% of patients remained in the same group of classification of bladder outlet obstruction. Within- and between-patient variations and reproducibility of the test results were not influenced by the procedure of investigation, i.e., the transurethral or suprapubic method. However, we found variations suggesting a decrease in urethral resistance and bladder contractility from test to test in the transurethral group, whereas variations suggesting an isolated decrease in bladder contractility were seen in the suprapubic group. Detrusor instability per se does not seem to cause any systematic changes during repeated testing.
Adult↗
A case of pure renal hydatid cyst without multiple organ involvement.
Hydatid disease of the urinary tract is very rare. We report a case of pure renal hydatid cyst, with its clinical presentation and management.
Adult↗
Transitional cell carcinoma of the bladder in patients under 30 years of age.
Transitional cell carcinoma of the bladder is rare in patients younger than 30 years. We report two cases of bladder cancer under the age of 30, regarding clinical picture, treatment and follow-up results.
Adolescent↗
Long-term effects of cigarette-smoke exposure on plasma testosterone, luteinizing hormone and follicle-stimulating hormone levels in male rats.
OBJECTIVES: To determine the effects of long-term cigarette smoking on the levels of plasma testosterone, luteinizing hormone (LH) and follicle-stimulating hormone (FSH) in male adult rats and to examine morphological and histological changes in the testes. MATERIALS AND METHODS: Cigarette smoke was generated by a smoking-machine and 12 rats were exposed to cigarette smoke diluted with 90% air for 60 days (2 h/day). Twelve rats were exposed to room air only under similar conditions as controls. The concentrations of plasma testosterone, LH and FSH were measured before and after exposure using a radio-immunoassay and the testes were examined histologically. RESULTS: In rats exposed to smoke, the mean plasma testosterone level decreased significantly but there were no significant changes in testosterone in the control rats. The mean plasma LH and FSH levels of the two groups did not change significantly after exposure. In rats exposed to smoke, histological examination of the testes showed fewer Leydig cells and degeneration of the remaining cells. CONCLUSION: These results indicate that the decrease in plasma testosterone levels induced by exposure to smoke was not associated with changes in plasma gonadotrophin levels. The decrease in testosterone levels may be related to the toxic effects of smoke on Leydig cells.
Animals↗
Eighteen-month follow-up of cystovaginoplasty: a new augmentation operation for repair of vesicovaginal fistulae.
We present an 18-month follow-up of a cystovaginoplasty case. Surgery was performed because of a large vesicovaginal fistula. A new technique using the vagina as a pouch was utilized.
Aged↗
Quantitative evaluation of renal parenchymal mass with 99mtechnetium dimercapto-succinic acid scintigraphy after nephrolithotomy.
PURPOSE: We detected renal parenchymal damage after nephrolithotomy. MATERIALS AND METHODS: We studied 12 patients with renal stones treated with nephrolithotomy. Renal function was determined with serum blood urea nitrogen (BUN) and creatinine values, and 99mtechnetium dimercapto-succinic acid scintigraphy of renal parenchymal tissue was performed before, and 7 days and 3 months after nephrolithotomy. Qualitative and quantitative analyses were done with the Wilcoxon signed rank test. RESULTS: There was no visual difference in size and appearance of the nephrotomy site between preoperative and postoperative visual scintigraphic evaluations. Quantitative data did not reveal any significant difference between kidneys with and without a nephrotomy incision (p > 0.05), as well as between nephrotomy regions and intact parenchyma within the same kidney (p > 0.05) 3 months after nephrolithotomy. There was no significant difference in serum BUN and creatinine levels between values preoperatively and 3 months postoperatively (p > 0.05). CONCLUSIONS: There was no significant change in renal cortical function and functioning renal parenchymal mass after nephrolithotomy as shown by serum BUN and creatinine levels, and 99mtechnetium dimercapto-succinic acid scintigraphy.
Adolescent↗
The effect of age in the usage of alpha receptor blocker treatment in prostate patients.
Age was considered in the usage of alpha receptor blocker in the treatment of prostate patients. Ninety patients with prostatism were treated with alpha 1 receptor blockers (Doxazocin 4 mg/day) for 8 weeks. Before and after treatment, the patients in two groups according to their age, above and below 60 years, were evaluated using International Prostate Symptom Score (IPSS). The patients younger than 60 years of age had more significant relief compared to those older than 60 years of age.
Adrenergic alpha-Antagonists↗
Phaeochromocytoma in pregnancy: a case report.
A twenty-eight years old patient with phaeochromocytoma in pregnancy is reported. In the second trimester, she was admitted to hospital for complaints of headache, fever, palpitation and weakness. A phaeochromocytoma was diagnosed. Alpha and beta blockers were given to regulate arterial blood pressure until foetal maturity was reached. Delivery was by caesarean section and the operation was continued with a right adrenalectomy. Pathological examination revealed a phaeochromocytoma.
Adrenal Gland Neoplasms↗
Prostatic specific antigen and benign prostatic hyperplasia.
The aim of this study on patients (n = 51) with urodynamically proven obstruction was to search for correlations between serological levels of prostatic specific antigen (PSA) and age of patients, volume of prostate and prostatic morphology as evaluated on transurethral resection specimens. No correlations could be found between PSA levels and morphological parameters such as degree of inflammation and relative degree of stromal or epithelial hyperplasia. Significant correlations were demonstrated between PSA levels and age of patients and prostatic volume.
Age Factors↗
Benign prostatic hyperplasia. Does a correlation exist between prostatic morphology and irritative symptoms?
Fifty-two consecutive patients with prostatism who underwent a prostatectomy were investigated with regard to irritative symptom score, age, prostate volume, urine culture results, degree of detrusor instability, inflammation in the prostate, and stromal, glandular or mixed prostatic histopathology. We did not find any statistical correlations between irritative symptom score and the mentioned parameters. This indicates that irritative symptoms should rather be attributed to extraprostatic factors such as e.g. bladder reaction.
Age Factors↗
Urethral sleeve advancement in repairement of distal hypospadias.
Thirtyfive boys with distal hypospadias were operated on using urethral sleeve advancement procedure between 1990 and 1994. Early complications such as hematoma and wound infection, and late complications such as fistula formation and meatal retraction were not seen in the patients except meatal stenosis in first month control in only eight patients. Four of them underwent dilatation and meatotomy was performed in the rest. Both cosmetic and functional results were excellent in the patients in sixth month control.
Adolescent↗
Renocolic fistula secondary to chronic pyelonephritis.
Renocolic fistula is very rare. Only slightly over 100 cases have been reported in the world literature. We present a case of renocolic fistula secondary to chronic pyelonephritis discovered intraoperatively and discuss its diagnosis and management in the light of published data.
Chronic Disease↗
Rhabdomyosarcoma of the urinary bladder in an adult.
Primary bladder rhabdomyosarcoma is very rare in adults. We report a 76-year-old man who underwent partial cystectomy with postoperative radiotherapy and had a recurrence 6 months after the operation.
Aged↗