Pulsus Alternans During Halothane Anesthesia in a Dog
Corresponding Author
JAMES E. BAILEY dvm
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.
Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Sisson Hall, Columbus, OH 43210-1089.Search for more papers by this authorWILLIAM W. MUIR III dvm, phd
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.
Search for more papers by this authorROMAN T. SKARDA dmv, phd
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.
Search for more papers by this authorCorresponding Author
JAMES E. BAILEY dvm
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.
Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Sisson Hall, Columbus, OH 43210-1089.Search for more papers by this authorWILLIAM W. MUIR III dvm, phd
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.
Search for more papers by this authorROMAN T. SKARDA dmv, phd
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio.
Search for more papers by this authorAbstract
An adult dog with pyloric obstruction was anesthetized with thiamylal and halothane for surgical revision. When an ECG was attached, the QRS-complex rate was noted to differ dramatically from the peripheral pulse rate. A dorsal pedal arterial catheter was introduced, and direct arterial pressure measurements revealed a blood pressure waveform that alternated in amplitude. Blood pressure and ECG traces were recorded, and the condition was diagnosed as pulsus alternans. The inhalation anesthetic was changed to isoflurane, and the condition was resolved.
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