Peroral endoscopic myotomy for treatment of Guillain-Barre syndrome-associated achalasia: A rare case

Figure 1 Subtle dilated distal esophageal lumen with acute tapering at the lower esophageal sphincter and narrowing at the esophagogastric junction was shown in esophagography.

Figure 2 Dilation of the esophageal lumen and retention of food remnants in the esophagus was identified during endoscopy.

Figure 3 Mean integrated relaxation pressure 22. 9 mmHg over test swallows with absent peristalsis was shown in high-resolution manometry.

Figure 4 Peroral endoscopic myotomy was performed to treat Guillain-Barre syndrome-associated type I achalasia.

Figure 5 After peroral endoscopic myotomy, smooth passage of a contrast agent into the stomach was shown in follow-up esophagography.

Figure 6 Mean integrated relaxation pressure decreased to 9. 6 mmHg in follow-up high-resolution manometry.