Cardiovascular effects of butorphanol in halothane-anesthetized dogs.

  title={Cardiovascular effects of butorphanol in halothane-anesthetized dogs.},
  author={Stephen A. Greene and Sandee M. Hartsfield and Claire Tyner},
  journal={American journal of veterinary research},
  volume={51 8},
Cardiovascular effects of butorphanol (0.2 mg/kg of body weight, IV) and responses associated with subsequent administration of naloxone (0.04 mg/kg, IV) were studied in halothane (1.2% end-tidal concentration)-anesthetized dogs. Transient, but statistically significant (P less than 0.05), decreases in heart rate, mean and diastolic arterial blood pressures, and rate-pressure product were observed after butorphanol administration. Cardiac index, stroke volume, and systemic vascular resistance… CONTINUE READING