Intraluminal esophageal sphincter manometry in dogs immobilized with xylazine.
The pressure in the pharyngoesophageal and the gastroesophageal sphincters in six normal dogs immobilized with xylazine was studied, using a single side hole catheter continuously perfused with distilled water by a compressed air pressure pump. Mean maximal resting pressures of the pharyngoesophageal and the gastroesophageal sphincters were 6 +/- 1.2 mm of Hg and 11 +/- 2.9 mm of Hg, respectively. The technique and results will enable better definition of esophageal sphincter abnormalities.
D000818:Animals; D004285:Dogs / Q000502:physiology*; D004947:Esophagus / Q000502:physiology*; D007103:Immobilization; D008365:Manometry / Q000379:methods / Q000662:veterinary*; D010614:Pharynx / Q000502:physiology; D013270:Stomach / Q000502:physiology; D013843:Thiazines; D014991:Xylazine
D013843:Thiazines; D014991:Xylazine