The Management of Reno-Ureteral Lithiasis - from Emergency Presentation to Definitive Treatment
P Geavlete1,2,3, A Plesuvescu2, F Stanescu2
1"Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.
Maedica
|June 2, 2023
Summary
Emergency pre-stenting followed by secondary intervention for kidney stones is safe and effective. Flexible ureteroscopy demonstrated the highest stone-free rate in this study.
Area of Science:
- Urology
- Endourology
- Nephrolithiasis Management
Background:
- This retrospective study evaluated the efficacy of secondary interventions for renal and ureteral lithiasis following emergency pre-stenting.
- A total of 149 patients presenting with acute renal pathology were included, undergoing initial double-J stent placement before definitive treatment.
Discussion:
- The study compared stone-free rates for semirigid ureteroscopy, flexible ureteroscopy (F-URS), combined ureteroscopy, and percutaneous nephrolithotomy (PCNL).
- Encrusted or obstructed stents were noted in a small percentage of cases, highlighting potential complications.
- Mean operative time was 23 minutes with no major incidents reported.
Key Insights:
- Flexible ureteroscopy (F-URS) achieved the highest stone-free rate at 90.6%.
- Semirigid ureteroscopy yielded an 86% stone-free rate, while combined procedures had a 90.24% rate.
- Percutaneous nephrolithotomy (PCNL) showed a lower stone-free rate of 75%.
Outlook:
- Emergency pre-stenting appears to be a safe and valuable strategy prior to definitive stone removal.
- Flexible ureteroscopy is a highly effective secondary intervention for achieving stone-free status in reno-ureteral lithiasis.
- Further research could explore optimizing pre-stenting protocols and comparing long-term outcomes of different secondary interventions.
Related Concept Videos
Urinary Tract Calculi VI: Surgical Management
11
Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
11
Urinary Tract Calculi III: Medical Management
9
The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
9
Urinary Tract Calculi V: Nursing Management
14
AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...
14
Urinary Tract Calculi IV: Nutrition Therapy and Prevention
13
Management of renal calculi focuses on effective strategies like tailored nutrition and hydration therapy. Adjusting diet and fluid intake reduces stone formation and recurrence, making these interventions simple yet powerful in kidney stone prevention and management.Understanding Kidney StonesKidney stones form when calcium, oxalate, uric acid, and cystine concentrate and crystallize in urine. Factors contributing to their formation include genetic predisposition, certain medical conditions,...
13
Acute Pyelonephritis II: Diagnostic Studies and Management
20
Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
20
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
16
Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
16


