The cause is thought to be aperistalsis of the distal ureter, leading to dilatation.

One patient showed 100% aperistalsis both before and after treatment, and it was not therefore possible to measure amplitude, duration, or velocity of propagation in this patient.

Proximal myopathy, inflammatory polyarthritis, central nervous system symptoms, esophageal aperistalsis, and hoarseness are among the notable systemic symptoms.

Our hypothesis was that the oesophageal sensitivity to acid would be reduced in PSS with aperistalsis on the basis of changed oesophageal sensory pathways.

Cardiospasm Dyssynergia Esophagus Esophageal Aperistalsis Megaesophagus None Achalasia is a rare disorder of the esophagus, the tube that carries food from the throat to the stomach.

Irregularity in the contractions of the esophagus, prominent tertiary contractions of the esophagus, or lack of esophageal contraction (aperistalsis) have all been reported on manometric testing of the esophagus.