Effect of acute gastric dilatation on gastric myoelectic and motor activity in dogs.

Objective: To investigate the effects of experimentally induced acute gastric dilatation on electrical and mechanical activities of the stomach in dogs.

Animals: 7 healthy dogs.

Procedure: Electrodes and strain-gauge force transducers were implanted on the serosal surface of the antrum and pylorus.

Effect of circumcostal gastropexy on gastric myoelectric and motor activity in dogs.

Gastric electrical and contractile activities were assessed in healthy adult dogs on the eighth day after circumcostal gastropexy surgery, using serosal electrodes and strain gauge force transducers. Recordings were analysed to determine gastric slow wave frequency, presence of gastric slow wave dysrhythmias, gastric slow wave propagation velocity, coupling of gastric contractions to slow waves, a gastric motility index based on relative contractile amplitudes, and onset of gastric contractions after a standardised meal. Overall, gastric electrical and contractile activities were relatively unaffected by circumcostal gastropexy.

Effect of metoclopramide on fed-state gastric myoelectric and motor activity in dogs.

Objective: To investigate the effects of metoclopramide, a putative gastroprokinetic agent, on dogs that had recovered from gastric dilatation-volvulus (GDV), a disorder characterized by delayed gastric emptying.

Animals: 6 healthy dogs and 5 dogs after treatment and recovery from GDV.

Procedure: Baseline recordings of gastric electrical and contractile activities were made 8 or 10 days after circumcostal gastropexy and implantation of serosal electrodes and strain-gauge force transducers.

Gastric myoelectric and motor activity in dogs after isoflurane anesthesia.

To characterize the effects of isoflurane on gastric motility, gastric electrical and contractile activities were assessed in six healthy adult dogs before and after recovery from anesthesia. Baseline recordings (fasting and fed state) were obtained in unanesthestized dogs 8 days after implantation of serosal electrodes and strain-gauge force transducers. After an overnight fast, dogs were anesthetized with 1.

Gastric myoelectric and motor activity in dogs with gastric dilatation-volvulus.

Electrical and contractile properties of the stomach were assessed in six adult dogs after recovery from surgical treatment for gastric dilatation-volvulus (GDV), a disorder characterized by delayed gastric emptying of the solid phase. Electrodes and strain-gauge force transducers were sutured to the serosa of the antrum and pylorus at the time of surgical intervention for GDV. Ten days after implantation, electrical and mechanical activities were recorded before and after a standardized meal.