Table 1.

Contraction patterns using EPT

Contraction pattern	Esophageal pressure topography characteristics
Failed	Minimal (<3 cm) integrity of the 20-mmHg isobaric contour distal to the proximal pressure through
Weak peristalsis	Presence of a break in the 20-mmHg isobaric contour greater than 2 cm
	• Subdivided into small (2–5 cm) and large (>5 cm) breaks
Hypertensive	Normal CFV with DCI > 5,000 mmHg.cm.s
Rapidly propagated	CFV ≥ 10 cm/s
Normal	Not achieving any of the above diagnostic criteria

Modified from Pandolfino et al (16)

CFV Contractile Front Velocity

DCI Distal Contractile Integral