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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...
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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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Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery
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Major predictors for difficult common bile duct stone.

Oğuz Usküdar1, Erkan Parlak, Selçuk Dişibeyaz

  • 1Department of Gastroenterology, üukurova University Balcalı Hospital, Adana, Turkey.

The Turkish Journal of Gastroenterology : the Official Journal of Turkish Society of Gastroenterology
|November 15, 2013
PubMed
Summary

Predicting difficult common bile duct stone extraction during endoscopic retrograde cholangiopancreatography is crucial. Factors like distal strictures, smaller duct-to-stone ratio, stone diameter, impaction, and high bilirubin predict challenging cases.

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Area of Science:

  • Gastroenterology
  • Endoscopic Procedures
  • Biliary Tract Interventions

Background:

  • Endoscopic retrograde cholangiopancreatography (ERCP) is the standard for common bile duct stones.
  • Factors influencing ERCP technical difficulty in these patients are not well-defined.
  • This study investigates predictors of difficult ERCP for common bile duct stones in a large cohort.

Purpose of the Study:

  • To identify factors contributing to technical difficulty during ERCP for common bile duct stones.
  • To analyze predictive factors for challenging stone extraction in a large patient group.

Main Methods:

  • Prospective evaluation of 757 patients with common bile duct stones undergoing ERCP.
  • Definition of 'difficult stones' based on extraction complexity (multiple sessions, lithotripsy, or surgery).
  • Multivariate analysis of patient demographics, laboratory results, and endoscopic/cholangiographic findings.

Main Results:

  • 654 patients (86.4%) had easy stones; 103 (13.6%) had difficult stones.
  • Successful stone extraction was achieved in 98.1% of patients.
  • Independent predictors of difficult extraction included distal stricture (OR: 8.248), smaller common bile duct/stone diameter ratio (OR: 0.348), larger stone diameter (OR: 1.187), stone impaction (OR: 1.117), and higher bilirubin levels (OR: 1.1).

Conclusions:

  • ERCP is highly effective for common bile duct stone treatment.
  • Strictures, small duct-to-stone ratio, stone size, impaction, and elevated bilirubin predict difficult ERCP stone extraction.
  • Identifying these factors can aid in pre-procedural planning and patient management.