Cardiopulmonary measurements in dogs undergoing gastropexy without gastrectomy for correction of gastric dilatation-volvulus

Objective-To measure cardiopulmonary variables, including cardiac index, in dogs with naturally acquired gastric dilatation-volvulus (GDV). Design-Prospective clinical study. Animals-6 dogs with GDV. Procedure-In addition to typical medical and surgical management of GDV, th e dorsal metatarsal and pulmonary arteries and right atrium of the dogs wer e catheterized to obtain cardiopulmonary measurements before and during ane sthesia and surgery. Results-All dogs underwent gastropexy but none required gastrectomy. Mean c ardiac index and mean arterial blood pressure for this small population of dogs with GDV were not significantly different from those reported for clin ically normal awake or anesthetized dogs. Conclusions and Clinical Relevance-Dogs with naturally acquired GDV without gastric necrosis may not have the classic characteristics, including decre ased cardiac index and hypotension, of hypovolemic circulatory shock.