Catheter test: A reliable alternative to assess adequacy of bladder management in patients of PUV in developing countries.

INTRODUCTION: Following posterior urethral valve ablation, persisting bladder dysfunction can lead to lack of improvement or worsening of hydronephrosis and as well, to lack of improvement or even worsening renal function. On the other hand, managing bladder dysfunction offers the possibility of lessening both the degree of hydronephrosis and the level of serum creatinine. As we have no available urodynamics we feel impelled to find other means of diagnosing and managing abnormal bladder dynamics in these boys. We wanted to determine if a short course of continuous bladder drainage would be an effective means of lowering abnormal serum creatinine levels. Based on an assumption that most bladders following valve ablation, especially in those boys with a persistently elevated serum creatinine post valve ablation, have some form of dysfunction, we wanted to determine if a short course of continuous catheter drainage could improve these abnormal serum creatinine levels. METHODS: The study was conducted over a 3year period and included all children up to 3 years of age who had higher age-appropriate nadir serum creatinine, 3 months post valve ablation. Patients were followed up at 1 week, 2 month and 3-month post valve ablation. On third follow-up visit patients with an elevated serum creatinine level were subjected to continuous bladder drainage (catheter test) for 5 days and serum creatinine level was recorded at the end of 5th day. Enforced bladder management which included dose titration of anti-muscaranic drugs and clean intermittent catheterization (CIC) with or without nocturnal catheter drainage (NOC) was instituted for next 3 months. Serum creatinine was determined at the end of the 3 month period and compared with prior values. RESULTS: A total of 21 patients were included in the study. The mean age of the children at the time of valve ablation was 6.97 ± 4.38 months. There was a significant fall in serum creatinine from 0.64 ± 0.12 mg/dl pre 5 days of drainage to 0.48 ± 0.10 at the end of the 5 day period (p = 0.024) along with a significant rise in GFR (p = 0.001). Following 3 months of enforced bladder management, there was a very mild rise in creatinine to 0.51, a normal age adjusted value. DISCUSSION: The study demonstrates the importance of early diagnosis of bladder dysfunction in boys with an elevated serum creatinine levels post valve ablation. Elevated nadir serum creatinine 3 months post ablation seems to be a useful indicator of possible bladder dysfunction; lowering of serum creatinine following a 5 day trial of continuous bladder drainage confirms this diagnosis. However, the lack of availability of urodynamic testing leaves the specific type of bladder dysfunction undiagnosed. CONCLUSION: Lowering of serum creatinine following a 5-day trial of continuous bladder drainage can be used as a rough indicator of existing bladder dysfunction in boys with a history of PUV and should be used in countries without urodynamic equipment as an indicator for at least a 3 month trial of enforced bladder management.

Pediatric fine-needle aspiration cytology: An audit of 266 cases of pediatric tumors with cytologic-histologic correlation.

OBJECTIVES: Fine-needle aspiration cytology (FNAC), a well-accepted minimally invasive diagnostic technique utilized in adults, is gradually gaining ground for pediatric patients as well. However, there are very few comprehensive reports in the literature on utility of FNA in pre-operative diagnosis of pediatric tumors. MATERIAL AND METHODS: An observational study was conducted at a cancer research center and a pediatric tertiary care hospital over a 5-year period. A cytologic-histologic correlation was performed for FNACs performed in pediatric patients for a clinical diagnosis of neoplastic lesions at both the centers. Relevant clinical details and histopathology, wherever available, were retrieved. Sensitivity, specificity, and accuracy of FNAC in diagnosis of malignant lesion were calculated from the cases with available histologic correlation. RESULTS: Of the 266 cases included, there was a slight male predominance with lymphadenopathy being the most common presentation and non-Hodgkin's lymphoma as the most frequent diagnosis in cases clinically suspected to have a neoplasm. Histologic correlation was available in 112 cases with 100% concordance in liver and kidney tumors. Few rare cytologic diagnoses such as papillary renal cell carcinoma, mesenchymal hamartoma of the liver, and thymolipoma could be accurately rendered on FNAC smears in conjunction with the clinic-radiologic features. The sensitivity, specificity, and accuracy of FNA in diagnosing malignant pediatric tumors were found to be 100%, 92.6%, and 97.7%, respectively. CONCLUSION: The present study underscores the high sensitivity and accuracy of FNAC in diagnosis of pediatric tumors, both in superficial and deep-seated locations. Awareness of the cytomorphologic features and clinic-radiologic correlation may assist the cytopathologists in rendering a precise diagnosis of rare pediatric tumors as well.

Colorectal duplication with prostatorectal fistulae.

Tubular colonic duplications are rare malformations and its association with prostatorectal fistula is extremely rare with only one case reported to date. We report the successful management of an 8 year old child with communicating tubular colonic duplication with prostatorectal fistulae. Tubular colonic duplications may be difficult to diagnose due to varied presentations, therefore a high degree of suspicion should be present while managing children with isolated congenital recto urinary fistulas.