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Related Concept Videos

Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

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)...
Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

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...
Urinary Tract Calculi V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

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...
Urinary Tract Calculi IV: Nutrition Therapy and Prevention01:27

Urinary Tract Calculi IV: Nutrition Therapy and Prevention

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,...
Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

Renal calculi, or kidney stones, are solid deposits of minerals and salts formed inside the kidneys. In medical terminology, "calculus" refers to the stone itself, while "lithiasis" describes the process of stone formation. Depending on their location within the urinary system, these stones may be classified as either urolithiasis, when situated within the urinary tract, or nephrolithiasis, when located within the kidneys. Each term signifies the specific impact of the stone.Predisposition...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

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...

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Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis
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Management options for lower pole renal calculi.

Jay D Raman1, Margaret S Pearle

  • 1Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

Current Opinion in Urology
|February 28, 2008
PubMed
Summary

The best treatment for lower pole kidney stones depends on size. Smaller stones (<1 cm) can be observed or treated with shock wave lithotripsy (SWL) or ureteroscopy. Larger stones (>1 cm) generally require percutaneous nephrostolithotomy (PCNL).

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Last Updated: Jul 7, 2026

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Published on: November 22, 2019

Area of Science:

  • Urology
  • Nephrology
  • Surgical Innovation

Background:

  • The optimal management of lower pole renal calculi remains a subject of debate.
  • Several treatment modalities, including SWL, ureteroscopy, and PCNL, are considered viable options.

Purpose of the Study:

  • To review and delineate the current evidence-based treatment strategies for lower pole kidney stones.
  • To provide guidance on selecting the most appropriate intervention based on stone characteristics and patient factors.

Main Methods:

  • Systematic review of current literature on lower pole renal calculus management.
  • Comparative analysis of treatment outcomes for SWL, ureteroscopy, and PCNL.

Main Results:

  • For stones <1 cm, observation, SWL, or ureteroscopy are effective, with SWL potentially offering better secondary outcomes.
  • Stones 1-2 cm are best treated with PCNL, though ureteroscopy is an alternative for select patients.
  • Stones >2 cm are most effectively managed with PCNL, achieving higher stone-free rates and low morbidity in experienced hands.

Conclusions:

  • Treatment selection for lower pole stones requires consideration of stone size, patient anatomy, cost, and individual preferences.
  • PCNL is the preferred modality for larger lower pole stones due to superior efficacy.