Abstract
We prospectively studied 73 patients with angina-like chest pain severe enough to warrant admission to a coronary care unit over a five-month period. Thirty-four patients (47%) were found to have coronary artery disease as the cause of their symptoms, based on exercise testing, stress radionuclide imaging, or cardiac catheterization. The remaining 39 patients had normal cardiac findings and then underwent videoesophagography, radionuclide esophageal transit study, and esophageal manometry. Thirty-three of the 39 underwent acid perfusion testing (modified Bernstein's test). The findings at esophageal manometry were abnormal in 29 (74%) of 39. Manometric diagnoses were "nutcracker esophagus" in 17 (59%), nonspecific esophageal motility disorders in nine (31%), diffuse esophageal spasm in two (7%), and achalasia in one (3%). Bernstein's test reproduced symptoms in only 12%. The sensitivity of videoesophagography in detecting esophageal motility disorders was 66%, and that of radionuclide esophageal transit was 79%. The positive predictive values were 86% and 85%, respectively.
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