The evaluation of morphology of renal pelvicalyceal system's and infundibulopelvic anatomy of kidney's lower pole in post-mortem series.

BACKGROUND: Urinary system stones are frequently encountered in the community. Together with technological developments, introduction of new treatment procedures such as extracorporeal shock wave lithotripsy, percutaneous nephrolithotomy and retrograde intrarenal surgery has further reduced morbidity, mortality and hospitalisation time of patients. In order to maximise success and to reduce complications of these procedures, it is necessary to evaluate anatomy and morphological differences of kidney collector system before the procedure. This study was conducted for the purpose of determining the morphology of the kidney collector system and the negative anatomic factors of the lower pole in autopsy cases performed in our institution. MATERIALS AND METHODS: Eighty two kidney units obtained from 41 autopsy cases conducted in Faculty of Medicine Department of Forensic Medicine, Sivas Cumhuriyet University between September 2017 and September 2018 were included in the study. Percentages were found as 78% for intrarenal pelvis, 13.4% for borderline pelvis, 6.1% for extrarenal pelvis and 2.4% for pelvic nonexistence. When pelvicalyceal anatomy was evaluated, percentages were found as 32.9% for bicalyceal, 26.8% for tricalyceal, 20.7% for multicalyceal, and 19.5% for unclassified calyceality. When it was evaluated according to opening of calyces into the renal pelvis based on Sampaio classification, percentages were found as 30.5% for AI, 17.1% for type II, 28% for BI, 18.3% for BII, and 6.1% for unevaluated part. Infundibular lengths of kidney's lower pole were detected as under 3 cm in 39% and over 3 cm in 61% of all cases. Infundibulopelvic angles of kidney's lower pole were measured as under 70o in 42.7% and over 70o in 57.3% of all cases. RESULTS: In our study, there was no statistically significant difference between the right and left kidneys in terms of collecting system morphology and lower pole's negative anatomical factors. Only infundibular length which is one of the collecting system morphology and lower pole's negative anatomical factors were statistically shorter in females than males. There was no difference in terms of other parameters. CONCLUSIONS: In conclusion, the findings of this study are largely consistent with the results of similar studies. This reveals that renal collecting system morphology and negative anatomic factors in the lower pole collecting system in human are roughly similar. In clinical practice, pre-treatment computed tomography and, if necessary, magnetic resonance urography evaluation of the lower pole negative anatomic factors may contribute to gain preliminary information about both the clearance of stone fragments especially after shock wave lithotripsy and retrograde intrarenal surgery procedures and perioperative complications proactively.

Efficacy of combined anticholinergic treatment and behavioral modification as a first line treatment for nonneurogenic and nonanatomical voiding dysfunction in children: a randomized controlled trial.

PURPOSE: This randomized blinded clinical study was designed to compare the efficacy of tolterodine treatment combined with behavioral modification, behavioral modification alone and behavioral modification plus placebo in children with nonneurogenic, nonanatomical voiding dysfunction. MATERIALS AND METHODS: A total of 72 children meeting inclusion criteria were randomly allocated to 1 of 3 groups. One group received tolterodine (1 mg twice daily) along with behavioral modification, 1 received behavioral modification only and 1 received placebo with behavioral modification. A dysfunctional voiding scoring system questionnaire was completed for all patients at the beginning of the study, and at 1 and 3 months of treatment. RESULTS: A total of 71 patients were evaluated. The groups did not differ with respect to age, gender and symptom score before study enrollment (p >0.05). Repeated calculations of symptom scores at 1 month of the treatment revealed a significant decrease in symptoms in all 3 groups, with a significant decrease in patients receiving tolterodine. In addition, at month 3 the symptom score of the tolterodine group was significantly lower compared to month 1, while scores remained steady in the behavioral modification and behavioral modification plus placebo groups. CONCLUSIONS: Tolterodine combined with behavioral modification for voiding dysfunction in children without neurological or anatomical abnormality can be recommended as a first line treatment before invasive evaluation.

Treatment of detrusor sphincter dyssynergia with baclofen and doxazosin.

Detrusor sphincter dyssynergia (DSD) is an involuntary contraction of the external urethral sphincter during detrusor contraction. A high proportion of patients needing repeat surgery and long term failure have both been described in the literature. In the present study, we evaluated clinical characteristics, underlying disorders and outcomes of conservative medical treatment in 21 female patients. Two patients were newly diagnosed multiple sclerosis. Urodynamic studies were performed in all symptomatic patients, and consisted of measurement of post-micturition residuals, urethral pressure profilometry and EMG cystometry according to the criteria of the International Continence Society. All patients were treated with baclofen 15 mg/day and doxazosin 4 mg/day. Seven patients received tolterodine 4 mg/day in addition to baclofen and doxazocin because they had detrusor hyperreflexia (DH). In conclusion, treatment with either combined baclofen and doxazosin or anticholinergic agent tolterodine appeared to be effective. In addition, it should be kept in mind that DSD could be the first sign to any neurologic diseases.

Isolated renal and retroperitoneal hydatid cysts: a report of 23 cases.

Isolated extrarenal retroperitoneal and renal echinococcal cysts are rare manifestations of hydatid disease. We report 23 cases of renal and other retroperitoneal hydatid cysts diagnosed and treated in our clinic. Flank pain, abdominal mass and non-specific symptoms such as nausea and vomiting were the major symptoms. Indirect haemagglutination test was positive in 18 cases and eosinophilia in four cases. Among imaging studies computerized tomography was the most valuable diagnostic examination. A high index of suspicion is needed for preoperative diagnosis of hydatid disease of kidney and retroperitoneum.

Urinary nuclear matrix protein 22 for diagnosis of renal cell carcinoma.

OBJECTIVE: To determine the incidence of positive urinary nuclear matrix protein 22 (NMP22) values, which are currently used to detect transitional cell carcinoma of the bladder, in renal cell carcinoma (RCC). MATERIAL AND METHODS: Urinary NMP22 values were determined preoperatively in 41 patients in whom a solid renal mass had been detected using CT and who were scheduled for radical nephrectomy; 38 of these patients were diagnosed with RCC. Two patients had xanthogranulomatous pyelonephritis and one had metastasis of a small cell adenocarcinoma to the kidney; these patients were excluded from the study. A total of 30 patients with kidney stones and simple renal cysts were used as controls. RESULTS: The urinary NMP22 values of the RCC patients were significantly higher than those of the controls. Of the 38 patients with RCC, 23 (60.5%) had positive urinary NMP22 values > or =10 U/ml. There were four measurements above this cut-off level in the control group. Urinary NMP22 values increased with an increase in pathologic tumor stage, but the correlation was not statistically significant. There was no correlation between grade and urinary NMP22 or between tumor burden and urinary NMP22. CONCLUSIONS: The urinary NMP22 test may help to diagnose RCC and may also result in an increase in the incidental discovery of RCC. As elevated urinary NMP22 levels have also been found to occur in RCC, patients with suspected bladder cancer and positive urinary NMP22 levels should be more broadly evaluated. Specific NMP assays for renal tumor cells may increase the utility of the test for RCC.

Prognostic value of the expression of Ki-67, CD44 and vascular endothelial growth factor, and microvessel invasion, in renal cell carcinoma.

OBJECTIVE: To determine if use of cell proliferation, cell adhesion, level of angiogenesis-related factors and presence of microscopic vascular invasion (MVI) could better predict the biological behaviour of renal cell carcinoma (RCC), which has a widely variable clinical outcome despite the use of conventional prognostic factors (staging and grading). MATERIALS AND METHODS: The expression of Ki-67, CD44H and vascular endothelial growth factor (VEGF) were assessed immunohistochemically in formalin-fixed, paraffin-embedded tissues from 48 RCCs, using a Ki-67 labelling index (LI), CD44 LI and level of VEGF expression, respectively. In addition all the pathological slides were reviewed retrospectively for the presence and absence of MVI. The prognostic value of all the variables assessed was then evaluated, and correlated with the usual prognostic variables and cancer-specific survival. RESULTS: Univariate analysis of cancer-specific survival showed that tumour stage (P < 0.001), tumour size (P = 0.005), metastasis, MVI, Ki-67 LI, CD44H LI and VEGF expression (all P < 0.001) were predictors of tumour-related death. There was a statistical correlation between CD44H LI and each of Ki-67 LI (r = 0.61), expression level of VEGF (r = 0.72) and presence of MVI (r = 0.71). Independent predictors of cancer-specific survival in a multivariate analysis were: in all patients with RCC, the MVI (P = 0.003) and VEGF expression (P = 0.01); in those with no metastases, MVI (P = 0.01); in patients with no MVI, VEGF (P = 0.04); and in patients with MVI, Ki-67 LI (P = 0.003). No independent predictor was identified in patient with metastases. CONCLUSION: This study suggests that cell proliferation, cell adhesion, the level of VEGF expression and the presence of MVI represent a complex tumour-host interaction that may favour the progression of RCC. Cell proliferation, CD44H and VEGF expression appear to be powerful markers for identifying patients with an adverse prognosis.

Predictors of outcome after in situ anterior vaginal wall sling surgery.

Pubovaginal sling procedures are being performed with increased frequency for stress urinary incontinence. The vaginal wall sling was introduced in 1989 by Raz et al., and its success rate has been reported as being 61%-100%. A number of recent studies have identified that some patient factors may influence the likelihood of a successful outcome. In the present study, we evaluated whether preoperative Valsalva leak-point pressure and urethral pressure profile can be used as predictors of success after surgery. We identified the preoperative characteristics of 58 women who underwent an isolated in situ anterior vaginal wall sling procedure by the same surgeon. Patients' ages, previous anti-incontinence procedures, hormone replacement status and previous hysterectomies were determined and patients underwent urodynamics, including cystometry, measurement of the Valsalva leak-point pressure and urethral pressure profile (maximal urethral pressure). After the vaginal wall sling procedure, success was defined as a significant improvement in stress urinary incontinence symptoms or no symptoms at all. The 58 women ranged from 41 to-71 years old (average 52.3) and average follow-up was 26 months (range 16-34). An anti-incontinence procedure had been done previously in 15% of cases. The success rate was 65.4% in patients with Valsalva leak-point pressure < 50 cmH2O and maximal urethral pressure < 30 cmH2O, but it was 90.6% in patients with Valsalva leak-point pressure 50 cmH2O or higher and maximal urethral pressure 30 cmH2O or more. Patients with Valsalva leak-point pressure 50 cmH2O or higher and maximal urethral pressure 30 cmH2O or more had a 90.6% success rate, and it was significantly higher than the success rate of patients with lower values for both parameters. We concluded that preoperative Valsalva leak-point pressure and maximal urethral pressure can be used to estimate the success rate of anterior vaginal wall sling procedures. When of these parameters are concurrently high, the outcome of surgery seems more favorable.

[A retrospective evaluation of genitourinary system trauma in pediatric patients]. / Pediyatrik hastalardaki genitoüriner sistem travmalarinin retrospektif degerlendirilmesi.

In the present study, 34 pediatric patients who were hospitalized and maintained with urogenital trauma in our department last ten years, were reviewed, retrospectively. Six of them (17.6%) were girls and 28 (82.4%) were boys, and the mean age was 10.1 years (ranged between 2.5-17 years). The causes of injuries were traffic accident in 24 cases (70.6%), full from a height in 9 cases (26.4%) and gun-shot in one case (3%). Traumas involving the kidney, urethra, bladder and, testis were encountered in 13 (38.2%), 13 (38.2%), 4 (11.7%), 3 (8.8%) and 1 (2.9%), respectively. The mean duration of follow up was 11.2 months (6-12 months). The encountered complications were urethral stricture in 2 cases with urethral trauma and bladder neck stricture in 1 case with bladder trauma. In conclusion, the most common pediatric genito-urinary injuries we observed in this study, were blunt trauma resulted from traffic accidents and falls, and were more frequent in boys similar to the literature. The most common injured organs were kidney, urethra and bladder and the complications were rare. But the importance of follow up in pediatric patients should be kept in mind.

An unusual cause of incontinence: urethral coitus.

Megalourethra and incontinence due to urethral coitus are very rare phenomena in women. In this paper, we report two cases of urinary incontinence due to urethral coitus where there was no vaginal anomaly or dysfunction.

K-RAS mutation in transitional cell carcinoma of urinary bladder.

In the present study it was aimed to investigate the frequency of K-RAS mutation in the human bladder transitional cell carcinoma. For this purpose, tissue specimens obtained from the patients with bladder tumors. Genomic DNAs were isolated and then PCR-SSCP analysis of K-RAS gene were performed. A heterozygous deleted mutation was detected in K-RAS oncogene (exon 2) in agarose gel electrophoresis in one patient and point or substitution mutations are detected using single strand conformational polymorphism (SSCP) in other different patients with bladder cancer (4/14). In conclusion, the frequency of K-RAS mutation is not rare and the role of this mutation in oncogenesis and in infiltration of the urinary bladder wall needs to be confirmed in a larger study.

Cranial blind-ending branch of a bifid ureter.

A case of cranial blind-ending branch of bifid ureter is presented in a woman. There were no associated complications requiring surgery. The anomaly was best shown with intravenous urography.

Adenomatoid tumors of testis and epididymis: a report of two cases.

Adenomatoid tumors are rare benign tumors of female and male genital tracts. In this paper, we reported an epididymal and a testicular adenomatoid tumor in two patients presented with enlarged intrascrotal mass.

[Treatment plans and results in iatrogenic ureteral injuries]. / Iatrojenik üreteral travmalarda tedavi planlarimiz ve sonuçlari.

We treated 19 patients with iatrogenic ureteral injuries during a 10-year period. Gynecological operations were the most common surgical procedures (52.6%). The diagnosis of ureteral injury was made immediately in 6 patients and was delayed 14 to 180 days in 13. Five of the 6 injuries recognized during the operation were repaired successfully at the time of injury; one patient resulted a nephrectomy. Seven of the lately recognized 13 patients were treated with percutaneous nephrostomy and the first treatment. The two patients were made ureteroneocystostomy, one was made ureteroureterostomy and one had ureterolysis in the other five patients. We observed ureteral stenosis in the three patients after the operation follow ups. The treatment was achieved with the endourological approach at these patients. Finally, we recommend percutaneous nephrostomy as a first treatment choice in the lately recognized iatrogenic ureteral injuries, while the immediate diagnosis and treatment of iatrogenic ureteral injuries, are severely important.

Effect of insulin therapy for diabetic cystopathy--urodynamic and histological findings in a rabbit model.

OBJECTIVE: To investigate the efficacy of insulin therapy in preventing cystopathic changes in diabetes using a rabbit model. MATERIALS AND METHODS: Twenty-four New Zealand white rabbits were studied in three groups: eight in group 1 as control, eight in group 2 with diabetes by administration intravenously alloxan hydrochloride and eight in group 3 administered insulin therapy after induction of diabetes. Urodynamic investigations were carried out in three groups at the end of 8 weeks. Tissue sections prepared from all groups were studied histologically. RESULTS: Bladder capacity and compliance increased in diabetic non-treated group. There was no significant difference between the control group and the diabetic group treated with insulin. The neuropathic changes were observed in the diabetic group, whereas the findings of the histological study were similar in the control and in the insulin treatment group. CONCLUSIONS: This animal model indicates that insulin therapy can prevent or delay urodynamic and histopathological changes in diabetes mellitus. These results must be supported by in vitro pharmacological studies.

Multiple primary tumours of the urogenital system: our cases and a review of the literature.

We had 6 genitourinary tumour patients with other primary tumours in a 147 genitourinary tumour patient group. Two of these tumours developed synchronously while the others were metachronous, and two of them developed in the genitourinary system. It is clear that cancer patients have a higher risk of a second cancer than the general population. Second cancers may be detected in long-term follow-up of cancer patients, or may be caused by the aetiologic factor(s) with pleiotropic effects, or may develop because of the therapies for the first cancer.

Prolapsed simple ureterocele in a ten-year-old girl.

A ten-year-old girl with a prolapsing ureterocele during micturation has been presented. Even though it is rarely seen, prolapsed ureterocele should be taken into consideration in the differential diagnosis of the interlabial masses in girls.

Penile strangulation injuries.

Penile tourniquet injury is probably not a rare entity. Various objects can cause penile strangulation, which may lead to severe injury. Three penile strangulation injuries are presented, one due to thread and two to hair. There were urethral fistulas in two cases. All patients were circumcised and had enuresis nocturna. They were treated successfully. In enuretic patients, it should be kept in mind that there may be a strangulation that can cause penile edema or ulceration and even a urethral fistula.

Megalourethra associated with prune-belly syndrome.

A 14-day-old male infant with megalourethra is presented because of the rarity of the anomaly and its association with prune-belly syndrome. The lax, wrinkled appearance of the abdomen, bilateral cryptorchidism and severe dilatation of the urinary system are features included in the classic triad of the prune-belly syndrome. Our patient had the scaphoid variety of megalourethra since the penis appeared elongated and floppy in the fusiform form.