Kidney Stone Research

The Use of Alpha-Blockers for the Treatment of Nephrolithiasis

The Use of Alpha-Blockers for the Treatment of Nephrolithiasis

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Alpha blockers may also be a useful adjunct in the treatment of both ureteral and renal stones with SWL. They may also reduce the urinary symptoms and pain associated with double-J ureteral stents. Further investigation is necessary to define the role of  blockers in the treatment of proximal ureteral and renal stones, and to elucidate the potential mechanisms of renal stone clearance after surgical stone intervention.
The success of extracorporeal shock-wave lithotripsy based on the stone-attenuation value from non-contrast computed tomography

The success of extracorporeal shock-wave lithotripsy based on the stone-attenuation value from non-contrast computed tomography

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The SAV value is an independent predictor of the success of ESWL and a useful tool for planning stone treatment. Patients with a SAV P956 HU are not ideal candidates for ESWL. The inclusion criteria for ESWL of stones with a SAV <500HUcan be expanded with regard to stone size, site, age, renal function and coagulation profile. In patients with a SAV of 500–1000 HU, factors like a body mass index of >30 kg/m2 and a lower calyceal location make them less ideal for ESWL. ª 2014 Production and hosting by Elsevier B.V. on behalf of Arab Association of Urology.
The effect of stone and patient characteristics in predicting extra-corporal shock wave lithotripsy success rate: A cross sectional study

The effect of stone and patient characteristics in predicting extra-corporal shock wave lithotripsy success rate: A cross sectional study

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This study shows that determination of stone density and stone size on CT KUB pre ESWL can help to predict the outcome of ESWL. We propose that stone density <500 HU and stone size < 5 mm are highly likely to result in successful ESWL.
A large series of extracorporeal shockwave lithotripsy in the very elderly

A large series of extracorporeal shockwave lithotripsy in the very elderly

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In conclusion, ESWL has been used by urologists as a first-line treatment for uncomplicated urinary calculi in very elderly patients. Despite changes associated with aging, and the high prevalence of comorbidities, this procedure seems to be safe and well tolerated in elderly people.
Postoperative infective complications following percutaneous nephrolithotomy

Postoperative infective complications following percutaneous nephrolithotomy

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Post‑PCNL complications are more commonly found in patients with history of preoperative UTI, previous history of renal surgeries, large stone burden, operative procedure more than 90 min, and presence of residual calculi.
Study of predictive factors affecting the prolonged urinary leakage after percutaneous nephrolithotomy

Study of predictive factors affecting the prolonged urinary leakage after percutaneous nephrolithotomy

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In the present study, several factors appear to affect post‑PCNL prolonged urinary leakage. We suggest that patients who are at increased risk of prolonged urinary leakage double‑J stent should be placed at the end of PCNL procedure.
Does body mass index effect the success of percutaneous nephrolithotomy?

Does body mass index effect the success of percutaneous nephrolithotomy?

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Percutaneous nephrolithotomy is a safe and effective treatment for renal stone disease. Body mass index does not affect the success or complication rate in PNL.
Tubeless mini‑percutaneous nephrolithotomy for renal stones larger than 20 mm

Tubeless mini‑percutaneous nephrolithotomy for renal stones larger than 20 mm

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Mini‑PCNL is an effective and safe treatment option for patients with large renal stones (>20 mm). Stones located in multiple sites is the only predictor of significant residual stones.
The ideal puncture approach for PCNL: Fluoroscopy, ultrasound or endoscopy?

The ideal puncture approach for PCNL: Fluoroscopy, ultrasound or endoscopy?

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Each percutaneous renal guidance techniques has its advantages and disadvantages and no single technique is ideal in all circumstances. The two most commonly used modalities are ultrasonography and fluoroscopy. Color Doppler ultrasound, an addition to B-mode ultrasound guidance, can help avoid vascular injury, resulting in decreased intraoperative and postoperative hemorrhage. CT guidance is only used for access in complicated cases. MRI and robotic-assisted guidance are in their infancy and need more research. Endoscopic guide can improve the safety of renal access, but the cost, and experience of the operators need to be considered.
Predictors of urosepsis in struvite stone patients after percutaneous nephrolithotomy

Predictors of urosepsis in struvite stone patients after percutaneous nephrolithotomy

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Several risk factors for urosepsis following PCNL for struvite stones have been identified. These risk factors should be taken into consideration in peri-operative care to mitigate the risks of urosepsis.
Comparison of Micro-Percutaneous and Mini-Percutaneous Nephrolithotomy in the Treatment of Renal Stones: A Systematic Review and Meta-Analysis

Comparison of Micro-Percutaneous and Mini-Percutaneous Nephrolithotomy in the Treatment of Renal Stones: A Systematic Review and Meta-Analysis

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Our meta-analysis demonstrated that Microperc could produce an SFR that was comparable with that of Miniperc. Microperc was associated with lower hemoglobin drop, while Miniperc was associated with lower renal colic rates. In addition, the operation time and hospital stay time for both these procedures were similar.
The Analysis of Risk Factors for Hemorrhage Associated with Minimally Invasive Percutaneous Nephrolithotomy

The Analysis of Risk Factors for Hemorrhage Associated with Minimally Invasive Percutaneous Nephrolithotomy

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Percutaneous nephrolithotomy is an effectivemethod for the treatment of upper urinary calculi with few complications. According to the results achieved by an experienced surgeon, the size of stone, staghorn stone, operation time, and degree of hydronephrosis were associated with the bleeding during minimally invasive percutaneous nephrolithotomy.

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