[Diagnostic importance of dynamic computerized esophageal scintigraphy]

Area of Science:

• Gastroenterology
• Medical Imaging
• Physiology

Background:

• Postburn cicatricial esophageal stenosis can impair esophageal function.
• Accurate assessment of esophageal transit is crucial for diagnosis and management.

Purpose of the Study:

• To compare esophageal transit times and passage rates of liquids and solids in healthy individuals and patients with postburn cicatricial esophageal stenosis.
• To evaluate the utility of scintigraphy in detecting esophageal lumen presence in cases of suspected complete obstruction.

Main Methods:

• Utilized scintigraphy to measure esophageal transit time and passage rates for water and a 10% test meal.
• Compared findings in healthy subjects with those in patients diagnosed with postburn cicatricial esophageal stenosis.

Main Results:

• Healthy individuals exhibited mean esophageal transit times of 3.75s for water and 6.15s for a test meal.
• Patients with stenosis showed significantly prolonged transit times (5-9s for water, 12-20s for test meal) and reduced passage rates.
• Scintigraphy revealed esophageal lumen presence in cases where X-ray indicated complete obstruction.

Conclusions:

• Postburn cicatricial esophageal stenosis markedly delays esophageal transit.
• Scintigraphy is a valuable tool for assessing esophageal patency in these patients, even when conventional imaging suggests complete blockage.