Related Experiment Video
Updated: Feb 22, 2026
03:56
A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
Published on: September 13, 2022
3.0K
Trainee-Associated Factors and Proficiency at Percutaneous Nephrolithotomy
Seyed Mohammad Kazem Aghamir1, Negar Behtash1, Morteza Hamidi2
1Department of Urology, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Acta Medica Iranica
|September 19, 2017
Summary
Proficiency in percutaneous nephrolithotomy (PNL) for urology trainees is significantly linked to the number of procedures performed. A higher case volume, rather than age or years since graduation, is crucial for developing PNL skills.
Area of Science:
- Urology
- Surgical Education
- Medical Training
Background:
- Percutaneous nephrolithotomy (PNL) is a complex urological procedure requiring specialized training.
- Assessing factors influencing trainee proficiency is essential for improving surgical education outcomes.
Purpose of the Study:
- To evaluate the impact of trainee age, prior experience, and case volume on proficiency in percutaneous nephrolithotomy.
- To identify key determinants for achieving competency in PNL among surgical trainees.
Main Methods:
- A cross-sectional observational study involving 42 PNL trainees over five years.
- Trainee performance was assessed using a 5-competency scale; proficiency was defined as an overall score of 4 or higher.
- Data on trainee age, years since residency graduation, and PNL case numbers were collected and analyzed using univariate and multivariate logistic regression.
Main Results:
- Overall mean proficiency score was 3.40 (out of 5), with 26.2% of trainees achieving proficiency.
- Univariate analysis showed age, years since graduation, and case number significantly impacted proficiency.
- Multivariate analysis revealed only the number of PNL cases operated was a significant predictor of proficiency.
Conclusions:
- The number of percutaneous nephrolithotomy (PNL) cases is the primary determinant of trainee proficiency.
- Sufficient practical experience, measured by case volume, is critical for urology trainees to master PNL.
- Focusing on increasing supervised case numbers can enhance PNL competency in surgical education programs.
More Related Videos
Related Concept Videos
01:25Urinary Tract Calculi VI: Surgical Management
629
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...
629
01:28Cardiac Catheterization I: Pre-Procedure Overview
1.7K
Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
1.7K
01:26Kidney Transplant II: Surgical Procedure
512
Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living...
512
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
1.9K
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...
1.9K
01:28Urinary Tract Calculi V: Nursing Management
358
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...
358
01:28Urinary Tract Calculi I: Introduction
606
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...
606