. Author manuscript; available in PMC: 2015 Oct 1.

Published in final edited form as: Gastrointest Endosc Clin N Am. 2014 Aug 1;24(4):545–561. doi: 10.1016/j.giec.2014.07.001

Table 4.

Characteristics of deglutitive peristaltic function proposed for the Chicago Classification v3.0 (note that contraction pattern is not scored with failed or weak vigor)

Contractile Vigor
Failed	DCI <100 mmHg-s-cm
Weak	DCI >100 mmHg-s-cm, but <450 mmHg-s-cm
Ineffective	Failed or Weak
Normal	DCI >450 mmHg-s-cm but <8,000 mmHg-s-cm
Hypercontractile	DCI ≥8,000 mmHg-s-cm
Contraction Pattern
Premature	DL <4.5 s
Fragmented	Large break (>5 cm) in the 20 mmHg isobaric contour, but not failed and DCI >450 mmHg-s-cm
Intact	Not achieving the above diagnostic criteria
Intrabolus Pressure Pattern (30 mmHg isobaric contour referenced to atmospheric)
Panesophageal pressurization	Uniform pressurization of >30 mmHg extending from the UES to the EGJ
Compartmentalized esophageal pressurization	Pressurization of >30 mmHg extending from the contractile front to the EGJ
EGJ Pressurization	Pressurization restricted to zone between the LES and CD in conjunction with LES-CD separation
Normal	No bolus pressurization >30 mmHg