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Related Concept Videos

Cholecystitis01:20

Cholecystitis

Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...
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 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 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...
Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
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...

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Related Experiment Videos

Rethinking Risk: Predictive Factors for Choledocholithiasis in Pediatric Patients.

Sabrina Sedano1, Sarah L Maxwell2, Sue J Rhee2

  • 1University of California, San Francisco, School of Medicine, San Francisco, California.

The Journal of Surgical Research
|July 3, 2026
PubMed
Summary
This summary is machine-generated.

Pediatric choledocholithiasis risk increases with common bile duct (CBD) dilation ≥6 mm and total bilirubin ≥1.4 mg/dL. These factors help predict pediatric choledocholithiasis, guiding timely interventions.

Keywords:
CholedocholithiasisPediatric risk stratificationPredictive factors

Related Experiment Videos

Area of Science:

  • Pediatric Gastroenterology
  • Hepatobiliary Surgery
  • Diagnostic Imaging

Background:

  • Pediatric cholelithiasis and choledocholithiasis incidence are rising.
  • Existing adult guidelines and pediatric DUCT criteria lack specific validation in pediatric populations.
  • There is a need to identify predictive factors for choledocholithiasis in children.

Purpose of the Study:

  • To identify independent predictive factors for pediatric choledocholithiasis.
  • To determine optimal cutoff values for key predictive markers.
  • To inform the development of pediatric-specific diagnostic tools.

Main Methods:

  • Retrospective cohort study of children ≤18 years undergoing cholecystectomy (2018-2023).
  • Exclusion of patients with cancer, chronic pancreatitis, or acalculous cholecystitis.
  • Multivariable logistic regression analysis of demographic and clinical data, including common bile duct (CBD) size and total bilirubin.

Main Results:

  • Common bile duct (CBD) size independently increased choledocholithiasis odds by 57% per 1 mm increase (P < 0.001).
  • Total bilirubin independently increased choledocholithiasis odds by 21% per 0.1 mg/dL increase (P = 0.012).
  • Optimal predictive cutoffs identified: CBD ≥6 mm (AUC: 0.87) and total bilirubin ≥1.4 mg/dL (AUC: 0.79).

Conclusions:

  • Common bile duct dilation ≥6 mm is a significant predictor of pediatric choledocholithiasis.
  • A total bilirubin level ≥1.4 mg/dL is also associated with increased risk.
  • Findings support the need for a validated pediatric-specific tool to guide management and resource allocation.