Fig. 1. Examples of high-resolution manometry (HRM) findings before and after peroral endoscopic myotomy (POEM). (A) Type I achalasia before POEM (left) with integrated relaxation pressure (IRP) 21.5 mmHg, ineffective esophageal motility (peristaltic recovery) after POEM with IRP 10.6 mmHg (right). (B) Type II achalasia before POEM (left) with IRP 32.8 mmHg, ineffective esophageal motility (peristaltic recovery) after POEM with IRP 11.7 mmHg (right). (C) Type II achalasia before POEM (left) with IRP 46.4 mmHg, ineffective esophageal motility (peristaltic recovery) after POEM with IRP 12.5 mmHg (right). (D) Type II achalasia before POEM with IRP 43.0 mmHg (left), absent contractility after POEM with IRP 14.0 mmHg (right). (E) Type II achalasia before POEM with IRP 27.3 mmHg (left), ineffective esophageal motility (peristaltic recovery) after POEM with IRP 10.8 mmHg (right). (F) Type III achalasia before POEM with IRP 30.8 mmHg (left), fragmented peristalsis after POEM with IRP 12.7 mmHg (right).
© J Neurogastroenterol Motil
