[Motility determinations on the esophagus and its sphincter system]

Area of Science:

• Gastroenterology and Diagnostic Imaging
• Esophageal Motility Disorders

Context:

• Esophageal structure is well-assessed by endoscopy and X-ray.
• Many esophageal disorders are defined by abnormal esophageal function, not structure.
• Current structural imaging lacks sufficient functional diagnostic capacity.

Purpose:

• To highlight the necessity of esophageal function tests for diagnosing motility disorders.
• To address the challenges in interpreting esophageal function tests.
• To recommend a comprehensive approach for accurate diagnosis.

Summary:

• Esophageal function tests like cinéradiography, manometry, pH-metry, and scintigraphy are vital for diagnosing disorders such as oropharyngeal dyskinesia, diffuse esophageal spasm, achalasia, and gastroesophageal reflux.
• Interpretation difficulties arise from technical limitations, transient motility disorders, and the need for quantitative assessment, especially for conditions like gastroesophageal reflux.
• Normal esophageal function ranges are not well-established, complicating the diagnosis of minor or transient motility disturbances.

Impact:

• Emphasizes the need for advanced functional testing beyond structural imaging.
• Underscores the importance of integrating multiple diagnostic modalities for accurate esophageal disease diagnosis.
• Highlights the clinical utility of combining functional test results with clinical symptoms and standard imaging for improved patient management.