Afferent loop syndrome: sonographic findings in seven cases

Area of Science:

• Gastroenterology
• Radiology
• Surgical Pathology

Background:

• Afferent loop syndrome is a complication following gastrointestinal surgery.
• Early diagnosis is crucial for effective management and preventing complications.

Purpose of the Study:

• To evaluate the sonographic findings in patients with afferent loop syndrome.
• To determine the efficacy of sonography in diagnosing afferent loop obstruction and its causes.

Main Methods:

• Retrospective analysis of sonographic findings in seven patients.
• Correlation of sonographic results with surgical findings.
• Identification of specific sonographic features of the dilated afferent loop.

Main Results:

• Sonography successfully detected afferent loop obstruction in all seven patients.
• The dilated afferent loop appeared as a transverse tubular structure in the upper abdomen.
• Causes identified included internal hernia, cancer recurrence, marginal ulcer, and anastomotic cancer.
• Sonography predicted the cause in two of three patients with anastomotic cancer.

Conclusions:

• Sonography is a valuable tool for diagnosing afferent loop syndrome.
• Specific sonographic features aid in identifying the dilated afferent loop and tracing it to the anastomosis.
• Sonography can help predict the underlying cause of afferent loop obstruction.