Νon-invasive screening for esophageal varices in patients with liver cirrhosis

Area of Science:

• Hepatology
• Gastroenterology
• Diagnostic Imaging

Background:

• Esophageal varices are a serious complication of liver cirrhosis.
• Upper gastrointestinal endoscopy is the standard for diagnosis but is invasive.
• Current guidelines (Baveno VI) suggest endoscopy may be unnecessary for some patients based on liver stiffness and platelet count.

Purpose of the Study:

• To critically review non-invasive and minimally invasive methods for screening esophageal varices.
• To analyze the accuracy, advantages, and limitations of these methods compared to endoscopy.

Main Methods:

• Literature review of non-invasive screening techniques.
• Evaluation of liver and spleen elastography, imaging (CT, MRI, ultrasound), laboratory tests, and capsule endoscopy.
• Analysis of diagnostic accuracy and comparison with endoscopic findings.

Main Results:

• Some data support the Baveno VI guidelines, but large prospective studies are lacking.
• The combination of liver stiffness and platelet count shows low specificity.
• Spleen elastography shows promise, potentially outperforming liver elastography, but requires more research.
• Computed tomography demonstrates high accuracy and potential for future screening.

Conclusions:

• Non-invasive methods show potential for screening esophageal varices in liver cirrhosis.
• Further validation of spleen elastography and computed tomography is warranted.
• Refining screening strategies can help optimize patient management and reduce the need for invasive procedures.