Can shear wave elastography predict the success of shock­wave lithotripsy used in renal stones treatment? A prospective study.

OBJECTIVE: To evaluate the usage of shear wave elastography (SWE) in the prediction of the success rate of shock­wave lithotripsy (SWL) treatment of renal stones. PATIENTS AND METHODS: In the present study, SWL was performed for 100 patients presented with renal stones in the duration from May 2022 to August 2023. The patients were divided into 2 groups SWL responders and non-responders. The study compared between the 2 groups in terms of baseline parameters of the patients as age, sex, body mass index (BMI), stone size, stone location, stone density (HU), skin-to-stone distance (SSD), the degree of hydronephrosis and the stone elastography values. RESULTS: There was no statistically significant relation between stone-free rate and degree of obstruction (p = 0.628), stone size (p = 0.390) upper calyceal location (p = 0.17), middle calyceal location (p = 0.66), and renal pelvis location (p = 1.0). Nevertheless, a statistically significant relation was found as regards lower calyceal location, stone density (HU), and stone Elastography values using multivariate analysis. CONCLUSIONS: Measurement of stone density by shear wave elastography (SWE) can be used as an alternative to HU in decision-making before SWL. SWL success depends mainly on stone site, HU, and SWE values.

Use of retrograde intrarenal surgery (RIRS) compared with mini-percutaneous nephrolithotomy (mini-PCNL) in pediatric kidney stones.

OBJECTIVE: We aimed to compare the cost-effectiveness and safety of retrograde intrarenal surgery (RIRS) and mini-percutaneous nephrolithotomy (mini-PCNL) for pediatric kidney stones management. PATIENTS AND METHODS: Ninety pediatric patients with single or multiple renal stones 1-3 cm in diameter were collected prospectively and equally divided into two groups to undergo RIRS or mini-PCNL. The groups were compared for fluoroscopy and operative time, postoperative hospital stay time, stone-free rate (SFR), need for auxiliary procedures, and cost as well as complications. RESULTS: There were no differences found between RIRS and mini-PCNL groups with regard to operative time and postoperative DJ stent application, while the mean of fluoroscopy time and postoperative hospital stay was significantly shorter in the RIRS than in the mini-PCNL group. The SFR, auxiliary treatment on residual stones, and complications were comparable. In both groups, no major (Clavien IV-V) complications were observed. The mean cost of RIRS was $1210 and $733 for the mini-PCNL. CONCLUSIONS: Both RIRS and mini-PCNL are effective and safe treatment modalities for pediatric renal stones 10-30 mm in size. However, mini-PCNL is more cost-effective making it a viable alternative to RIRS.

Is mini-percutaneous nephrolithotomy a safe alternative to extracorporeal shockwave lithotripsy in pediatric age group in borderline stones? a randomized prospective study.

PURPOSE: The extracorporeal shockwave lithotripsy (ESWL) remains the most common first line of treatment for renal stones in the pediatric population. The purpose of this study is to evaluate and compare the outcomes of the ESWL and mini-percutaneous nephrolithotomy (mini-PCNL). PATIENTS AND METHODS: A total of 108 patients younger than 12 years of age with 1-2 cm single renal stone (pelvic or calyceal) were randomized into two groups, each containing 54 patients. Patients in group A were subjected to mini-PCNL using 16.5 Fr percutaneous sheath while those in group B underwent ESWL using Dornier Compact Sigma. RESULTS: The stone-free rate (SFR) after first session was 88.9% (48 cases) and 55.6% (30 cases) for groups A and B, respectively. The difference is highly statistically significant P = 0.006. Two patients (3.7%) in group A needed 2nd session of PCNL, while 18 patients (33.3%)in group B needed a 2nd session, of theses 18 patients six patients needed a 3rd session of ESWL. After the third session of ESWL and second look PCNL the stone-free rates were 92.59% (50 cases) and 88.89% (48 cases) for groups A and B, respectively, (P = 0.639), which is statistically insignificant. The mean hospital stay and fluoroscopy exposure were significantly longer in the mini-PCNL group. The complication rate in groups A and group B were (22.2%) and (14.8%), respectively, which is statistically insignificant (P = 0.484). CONCLUSIONS: According to Clavien grade of complications mini-PCNL is a safe procedure, and after three session of ESWL, mini-PCNL has a similar stone-free rate with a lower retreatment rate. However, the mini-PCNL has more radiation exposure, and requires a longer hospital stay.

Does the duration of catheterization have an impact on the outcome of trial without catheter in patients with acute urine retention (AUR) due to benign prostatic hyperplasia (BPH)? A prospective randomized study.

BACKGROUND: To study the impact of early in comparison to late catheter removal following acute urine retention (AUR) secondary to benign prostatic hyperplasia (BPH) using silodosin therapy on the outcome of trial without catheter (TWOC). METHODS: Two hundred sixty patients with AUR 2ry to BPH were catheterized then were randomly divided to receive silodosin 8 mg either for three or 7 days followed by catheter removal and successful voiding unaided was assessed. RESULTS: Out of the 260 men (mean age 64.8 ± 6.5 years) treated, 74 men who were receiving 3 days of silodosin and 88 patients who were receiving 7 days of silodosin didn't require re-catheterization on the day of TWOC (57% and 68% respectively, p = 0.096). Complications like urinary leakage, acute urinary tract infection, hematuria, or catheter blockage recorded in 21 men (16.2%) who received 3 days of silodosin, and in 63 men (48.5%) who received 7 days of silodosin (p ⩽ 0.001). CONCLUSION: Patients catheterized after AUR 2ry to BPH can spontaneously void following catheter removal if treated by silodosin, independent of the catheterization duration, while side effects have increased with prolonged catheterization.

Can bipolar energy serve as an alternative to monopolar energy in the management of large bladder tumours >3 cm? A prospective randomised study.

Objectives: To assess the safety and the effectiveness of bipolar energy in the transurethral resection of primary large bladder tumours (TURBT) and compare it to conventional monopolar energy. Patients and methods: From November 2015 to June 2017, 80 patients underwent endoscopic resection primarily for large bladder cancer tumours of >3 cm. They were randomly assigned into two groups: 40 patients underwent a TURBT with conventional monopolar current (M-TURBT) and 40 were treated with bipolar current (B-TURBT). Results: There were no statistically significant differences between the two groups for the patients' demographic and tumour characteristics. There was a significant difference between M-TURBT and B-TURBT for resection time, obturator reflex, hospital stay, and catheterisation time, which were all higher in the M-TURBT group; the mean (SD) resection time was 26.45 (5.73) vs 22.85 (7.52) min (P = 0.048), the obturator reflex was 25% vs 5% (P = 0.025), the median hospital stay and catheterisation times were 2 vs 1 day (P = 0.012 and P = 0.023, respectively). No statistically significant difference was found between the groups for bladder perforation, TUR syndrome, drop in haemoglobin level, and blood transfusion rate. However, there was statically significant difference in the postoperative haematuria rate, which was higher in the M-TURBT group, at 24 patients vs eight in the B-TURBT group (60% vs 20%; P = 0.01). After 1-year follow-up, there was no significant difference in the recurrence rate between the groups. Conclusion: B-TURBT is a safe and effective alternative procedure to M-TURBT for the management of primary large bladder tumours of >3 cm. Abbreviations: CONSORT: consolidated standards of reporting Trials; Hb: haemoglobin; NMIBC: non-muscle-invasive bladder cancer; TUR: transurethral resection; (B-)(M-)TURBT: (bipolar) (monopolar) transurethral resection of bladder tumour.

Autologous versus synthetic slings in female stress urinary incontinence: A retrospective study.

OBJECTIVE: To evaluate and compare the clinical (patient's morbidity, quality of life [QoL]) and economic impact of autologous vs synthetic slings in female stress urinary incontinence (SUI), as over the last decade, the introduction of synthetic vaginal tapes for managing SUI has gained wide acceptance being quicker with low morbidity. Synthetic vaginal tapes have been progressively replacing the use of autologous rectus fascia. However, the high cost of these synthetic tapes is almost always an obstacle for most patients of limited socio-economic resources in the Egyptian community. PATIENTS AND METHODS: This retrospective study included 126 women with SUI. Data for patients that matched the study inclusion criteria were collected from the Urology Department of Ain-Shams University Hospitals from March 2011 to May 2013. Patients were categorised into two groups: Group I included 62 patients who underwent an autologous sling procedure using rectus sheath; and Group II included 64 patients that had a synthetic sling, using transobturator tape (TOT). The following variables were compared: operative time, postoperative pain scores, duration of indwelling urethral catheter, hospital stay, cost including the price of the synthetic tape when used, return to normal activity, and QoL assessment (International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form [ICIQ-UI-SF]) before and after discharge from hospital. RESULTS: Patients amongst the two groups were normally distributed with no statistically significant differences in patient's demographic data and comorbidities. The mean hospital stay was longer and the return to normal activity was delayed in Group I compared to Group II. The highest mean postoperative pain score was recorded in Group I. The overall morbidity was 12.9% and 4.68% in groups I and II, respectively. The mean (SD) overall cost was 2571.65 (254.8) and 3502.34 (196.9) Egyptian pounds (local currency) in groups I and II, respectively, being insignificantly lower in Group I when compared to Group II (P > 0.05). There were statistically significant differences between groups I and II for operative time, hospital stay, and postoperative pain scores. However, the differences in hospital cost amongst Group I and Group II were in favour of Group I. Post-surgical outcome was categorised into either complete cure (dry) or improved or failed with no significant differences in success rate and QoL amongst the study groups. The mean (SD) change in the QoL score was 10.95 (4.19) and 12.32 (4.1) in groups I and II, respectively. The higher success rate (complete cure) was in Group II, at 93.75%. Also, a statistically significant improvement of >70% of mean ICIQ-UI-SF score was shown in all groups when compared to baseline on both the 1- and 6-month follow-up visits. CONCLUSION: Autologous grafts should be considered as a repair option in females with SUI in countries were health insurance policies do not cover the cost of synthetic materials in many instances. The cost-effectiveness of synthetic TOT slings, as a minimally invasive procedure with lower overall morbidity, has yet to be confirmed in larger scale studies with longer periods of follow-up, to confirm the durability of its successful outcomes and be considered as the primary treatment of choice in female SUI.