Published on October 16, 2007
High-Resolution Manometry Basic overview Attila Dubecz
Catheter like NG tube (flexible) 36 solid-state pressure sensors spaced at 1-cm intervals spans the entire esophagus measures esophageal motility
like NG tube (flexible)
36 solid-state pressure sensors spaced at 1-cm intervals
spans the entire esophagus
measures esophageal motility
Measurement - Conventional C H A N E L S
2D – 3D
3D spatio-temporal plot
3D to 2D Contour plot
Measurment - HRM
Classic achalasia No peristalsis, impaired LES
LES Relaxation? Relaxation?
Primary motility disorders high amplitude > 180Hgmm double peak normal normal increased >40 Hgmm Nutcracker prolonged > 6sec, high amplitude double peak normal normal + simultaneous > 30% increased >40 Hgmm DES > 60Hgmm contractions incomplete simultaneous hypertensive Vigorous achalasia high resting intraesophageal pressures incomplete simultaneous hypertensive Achalasia BODY LES RELAXATION PERISTALSIS LES PRESSURE MOTILITY DISORDER
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