Figure 5: High-resolution manometry studies performed before and after a POEM procedure in a patient with type II achalasia. | Nature Reviews Gastroenterology & Hepatology

Figure 5: High-resolution manometry studies performed before and after a POEM procedure in a patient with type II achalasia.

From: Advances in the management of oesophageal motility disorders in the era of high-resolution manometry: a focus on achalasia syndromes

Figure 5

Note the fragment of peristalsis proximal to the myotomy (double-headed arrow, extends 5 cm proximal to the EGJ) after per-oral endoscopic myotomy (POEM) that was not evident before myotomy. DCI, distal contractile integral; EGJ, oesophagogastric junction; IRP, integrated relaxation pressure.

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