Chest Pain During Upper Endoscopy

Figure 1. Upper endoscopy before (A) and after (B) the development of chest pain. Powerful contraction of mid esophagus is observed in the figure 1B. CC This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. A 75-year-old male patient visited Seoul St. Mary's Hospital for regular checkup after endoscopic resection of the early gastric cancer. He complained of mild and intermittent dysphagia to solids and liquids for 1 year duration. Frequency of dysphagia increased recently. Previously performed upper endoscopies were reported as normal. After insertion of endoscopy, he complained of severe chest pain. The esophageal mucosa appeared normal but there were severe contractions leading to resistance in advancing the scope in the mid esophagus (Fig. 1). Esophagogram showed a corkscrew appearance on the mid and lower part of the esophagus (Fig. 2). Esophageal manometry disclosed the hypercon-tractile amplitudes of 365 mmHg (Fig. 3). A normal relaxation of the lower esophageal sphincter ruled out achalasia. Cardiac evaluation revealed nonspecific findings. These findings led to the diagnosis of diffuse esophageal spasm (DES), which was responsible for the chest pain. Chest pain subsided with the treatment of proton pump inhibitor, verapamil and isosorbide mono-nitrate. The pain associated with DES are very variable in severity and sometimes can mimic that of angina pectoris. 1 Upper endos-copy is firstly recommended to detect structural causes of dyspha-gia and noncardiac chest pain. In most affected patients, the esophagus retains the ability to propagate normal peristaltic contractions. As endoscopy has substantial limitations in assessing abnormal esophageal motility in DES, the intraluminal man-ometry is usually needed for the diagnosis of increased pressure