Search

Introduction Live kidney transplant is the standard of care for patients requiring renal replacement therapy. Donors with increasing age and comorbid conditions such as obesity and hypertension are now included for transplant. This study was performed to evaluate the change in renal function of kidney donors over a period of one year. Methods This was an analytical study of patient's who underwent donor nephrectomy from January 2022 to June 2023 at Department of Urology and Kidney Transplant Surgery, Tribhuvan University Teaching Hospital, Nepal. Renal function of donors in terms of serum creatinine, glomerular filtration rate, size of kidney and general physical examination including blood pressure pre-donation were compared with post donation period at three, six and twelve months. Results There were total of 76 cases available for analysis. Mean age of the donors was 44.6±10.1 years, ranging from 22 to 67 years, with male: female ratio of 1:2.45. There was no significant change in post donation blood pressure and kidney size. There was increase in serum creatinine level from baseline 70.47±14.96 to 93.20±17.61 (p<0.001) at three months follow up. Post donation glomerular filtration rate (GFR) of remnant kidney had increased significantly. Conclusion Post donation GFR of remnant kidney as well as serum creatinine level in live donor nephrectomy including the expanded criteria donors had increased significantly. Short-term deleterious effects in renal function post donation were not seen. [ABSTRACT FROM AUTHOR]

Introduction: This study measured the accuracy of spiral computed tomographic angiography (SCTA) in defining renal vascular anatomy and estimating the prevalence of renal vascular anomalies in live kidney donors. Methods: This prospective clinical study included 400 live-related-donor nephrectomies from June 2017 to December 2023. Renal vascular anatomy was described after SCTA. Reporting included the number of renal arteries and veins. Analysis was done by considering intraoperative findings as "actual" findings and compared to preoperative SCTA images for their prediction. For donated side kidneys, the prevalence of vascular variations was calculated using surgical and SCTA findings. The non-donated side was evaluated using SCTA alone. Results: Four-hundred live-donor nephrectomies were performed including 326 left and 74 right-sided cases. Of the 400 kidneys harvested, 429 renal arteries were detected out of which 414 arteries (96.5 %) were predicted by SCTA. Fifteen accessory renal arteries (1-2 mm) were identified at nephrectomy, which was not predicted. In two cases, SCTA was reported to have renal arterial stenosis (multiple in one and in mid-part in the other) which turned out to be normal intraoperatively. Similarly, 417 renal veins were detected in 400 harvested kidneys. Out of these, 408 renal veins (97.8 %) were predicted by SCTA. Two renal arteries were found in 161 Kidneys and three renal arteries were found in seven kidneys. In addition, two renal veins were found in 35 kidneys. Conclusion: Spiral computed tomographic angiography provided a reliable and accurate assessment of renal vascular anatomy and its variations in live donor nephrectomy. Small accessory arteries were missed occasionally. [ABSTRACT FROM AUTHOR]

Introduction: Renal cell carcinoma (RCC) is considered a disease of old age and is typically found in the 6th-8th decade of life. The diagnosis of RCC is increasing more rapidly in younger age patients. This study was conducted to evaluate the clinicopathological pattern and outcome of early onset RCC and compare them with the older age group patients. Methods: This was a single center observational study. All the patients undergoing radical or partial nephrectomy during the period of November 2019 to October 2022 for renal masses and whose final histopathology report showed RCC were included in the study. Clinicopathological patterns and outcome were compared between the two age groups. Results: Among 47 patients, 17 (36.2%) patients were at or below the age of =46 years and 30 (63.8%) patients in older age group. There was significant difference in male (29): female (18) ratio between the two age groups (p < 0.005). Younger age patients (=46 yrs) had higher stage of disease at presentation compared with the older age (>46 yrs) patients [tumor extension into major veins and perinephric tissue (T3) and above 26 vs 21] and they had significantly higher mortality rate (29.4% vs 3.3%, p =0.01). Conclusion: Patients aged =46 years of age were more frequently affected by RCC with female predominance. Younger age group had higher stage of disease at presentation with higher mortality in comparison to older age group. [ABSTRACT FROM AUTHOR]

Introduction: Urethral strictures have been a surgical challenge for the reconstruction urologists. Lichen sclerosus is the most common cause of urethral stricture in the developing world. There are different free graft tissues for urethroplasty but buccal mucosal graft (BMG) urethroplasty is an effective and versatile procedure for inflammatory and long segment urethral strictures. Methods: A total of 64 cases who had complex urethral strictures underwent dorsal onlay BMG urethroplasty. BMG was harvested from cheeks or sublingual mucosa depending upon the length of the stricture. The catheter was removed after 3 weeks and patients were evaluated with uroflowmetry. The surgery was considered successful if subjective and objective parameters were satisfactory. Results: Average length of the harvested graft was 14.5 cm (10-18 cm) in 42 panurethral, eight distal penile, four proximal penile and bulbar, and 10 bulbar urethral strictures. Postoperative period was uneventful except in four, of which two developed urethral fistulas and the other two developed periurethral abscess which resolved after treatment. After catheter removal, all voided with satisfaction. All patients, reassessed after mean period of 21 months, had satisfactory voiding. Two patients underwent visual internal urethrotomy for stricture at proximal site of BMG placement. There were no complications observed in the donor site with complete healing in all. Conclusion: Dorsal onlay BMG Urethroplasty is an effective and versatile procedure for anterior urethral strictures with excellent Results: and with minimal donor site morbidity. [ABSTRACT FROM AUTHOR]

Introduction:: Urolithiasis is common in the pediatric population in low-resource countries but appropriate management is not available in all parts of the country. This study aimed to identify demographic parameters, clinical characteristics, and surgical management of pediatric urolithiasis in a tertiary care center in Nepal. Methods: This was a retrospective and descriptive study of pediatric patients (=18 years) who underwent surgical management of urolithiasis in the Department of Urology and Kidney Transplant Surgery, Tribhuvan University Teaching Hospital from January 2021 to December 2022. Results: Total 64 patients with Male: Female ratio 1.78:1 and mean age of 8.63±5.56 years presented mostly with pain abdomen (93.8%) followed by lower urinary tract symptoms (26.6%), hematuria (20.3%), and fever (14.1%). The mean number of calculi was 2.2±1.47 and the mean size was 13.97±8.30 mm. Most of the calculi (39.1%) were in the right system and 90.62% were in the upper tract. Only 15.62% of patients had calculi in the lower tract. Open surgeries were performed in only 10.93% and the rest were managed by minimally invasive procedures. Percutaneous nephrostomy tube insertion was done in 6 (9.37%) of patients and 1 (1.56%) underwent nephrectomy for nonfunctioning kidney. Conclusion: Pediatric urolithiasis patients presented with pain abdomen, lower urinary tract symptoms, or hematuria. Surgical management has shifted from open surgeries in the past to minimally invasive surgeries at present. [ABSTRACT FROM AUTHOR]

Introduction In renal transplant, serum creatinine and isotope studies are used for determination of donor glomerular filtration rate (GFR). Studies have shown computed tomography measured renal volume can also be used. Our main objective was to assess the accuracy of volume based estimated GFR (vGFR) with diethylene triamine penta acetic acid (DTPA) measured GFR in living kidney donors. Methods An observational analytical study was conducted from July 2018 to June 2019 in Department of Urology and Kidney Transplant Surgery and Department of Radiodiagnosis in Tribhuvan University Teaching Hospital where a total of 38 eligible potential donors were evaluated and serum creatinine level, computed tomography with contrast and DTPA renogram were used to measure GFR and differential function. Results The mean age of the donors were 42.8±10.9 years with 70% of donors being females. Renal volume was not statistically different between male and female donors. There was moderate correlation between volume based and DTPA based GFR (r=0.76) and differential function (r=0.71). Compared to creatinine, volume based GFR estimate showed better correlation to DTPA renogram. There was no significant difference in differential function estimated by DTPA and volume based estimates (p = 0.96). The upper and lower limit of agreement between the volume based and DTPA based differential function was -4.7 and 4.6 respectively. Conclusion GFR measurement by CT volume overestimates total GFR compared to DTPA renogram but it has better correlation than creatinine based estimates. It can be used to estimate the differential function of the donor kidney. [ABSTRACT FROM AUTHOR]

Zinc-responsive acral hyperkeratosis is regarded as a novel entity masquerading numerous skin disorders, such as psoriasis, acral necrolytic erythema, and tuberculosis. Tuberculosis itself is a great imitator and so is its cutaneous form. Herein, we present the case of a female misdiagnosed as a case of tuberculosis verrucosa cutis due to clinical, biochemical, and histopathological features. The patient completed a full course of anti-tubercular therapy without an improvement and showed a dramatic response after a therapeutic trial of oral zinc. Thus, the patient was diagnosed as a case of zinc-responsive acral hyperkeratosis. In any form of acral hyperkeratotic lesions, zinc-responsive acral hyperkeratosis must be considered as a differential diagnosis. [ABSTRACT FROM AUTHOR]