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. Author manuscript; available in PMC: 2010 Jun 16.
Published in final edited form as: Am J Gastroenterol. 2009 Aug 18;104(11):2721–2728. doi: 10.1038/ajg.2009.467

Table 1.

Concordance between HRM patient classification and impedance criteria for defining abnormal bolus transit

Cutoff values
isobaric contour
Patient classification
peristaltic function
Normal
bolus
transit
Abnormal
bolus
transit
30 mm Hg
2-cm break
Normal 15 0
Intermittent
hypotension
1 1
Frequent hypotension 0 7
20 mm Hg
2-cm break
Normal 16 0
Intermittent
hypotension
0 2
Frequent hypotension 0 5
30 mm Hg
3-cm break
Normal 16 0
Intermittent
hypotension
0 2
Frequent hypotension 0 5

HRM, high-resolution manometry.