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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

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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...
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Urinary Tract Calculi III: Medical Management01:30

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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)...
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IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
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Related Experiment Video

Updated: May 2, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma
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[Tract sealing techniques in percutaneous nephrolitholapaxy].

T Hüsch1, M Reiter1, E Steiner1

  • 1Klinik für Urologie und Kinderurologie, Universitätsklinikum Frankfurt, Frankfurt am Main.

Aktuelle Urologie
|February 26, 2014
PubMed
Summary

Percutaneous nephrolitholapaxy (PNL) has evolved with smaller instruments, reducing hospital stays and pain. Omitting nephrostomy tubes in PNL is increasingly common, though the need for hemostatic agents remains unclear.

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Area of Science:

  • Urology
  • Minimally Invasive Surgery

Context:

  • Percutaneous nephrolitholapaxy (PNL) has undergone significant technological advancements.
  • Miniaturization of PNL instruments has led to improved patient outcomes and expanded indications.
  • Traditionally, nephrostomy tubes were routinely used post-PNL for hemostasis and to prevent urinoma.

Purpose:

  • To evaluate the trend and outcomes of omitting nephrostomy tubes in percutaneous nephrolitholapaxy.
  • To explore alternative methods for renal tract closure and hemostasis after PNL.

Summary:

  • The use of nephrostomy tubes after PNL has been increasingly questioned since 1997.
  • A prospective study demonstrated successful omission of nephrostomy tubes in 50 selected patients.
  • Hemostatic agents are now being used as alternatives for renal tract closure, but their necessity is under investigation.

Impact:

  • Reduced hospital stay and decreased analgesic requirements associated with PNL.
  • Potential for further refinement of PNL techniques and patient recovery protocols.
  • Ongoing research is needed to clarify the role and efficacy of hemostatic agents in PNL procedures.