Oesophageal mannometry
Non specific oesophageal disorder
Normal oesophageal peristalsis
Graphic representation of oesophageal contraction waves
Respiratory inversion point (demarcates positive intra abdominal pressure change to negative intra thoracic pressure)
In the transition zone where both smooth and striated muscle are found, the contractile amplitudes are lowest before rising again in the striated portion of the proximal esophagus
The upper esophageal sphincter forms the second high pressure zone It is briefly relaxes upon swallowing before actively regaining its tone again
Normal combined pH and manometry trace
Normal combined pH and manometry trace
S=swallow P =effective contraction
Achalasia (typified by aperistalsis)
WS=wet swallow
Non specific oesophageal disorder
