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Retrospective evaluation of the influence of phenoxybenzamine pretreatment on intraoperative cardiovascular variables in dogs with pheochromocytoma.

Can Vet J

December 2024

Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA (Willette); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA (Bini, Selmic); Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA (Traverson); Capital City Specialty & Emergency Animal Hospital, Ottawa, Ontario (Liptak); College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA (Hollenbeck); Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA (Maxwell, de Mello Souza); College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA (Wustefeld-Janssens).

Objective: To compare cardiovascular outcomes in dogs undergoing adrenalectomy for pheochromocytoma with and without phenoxybenzamine pretreatment.

Animals: A total of 65 medical records from dogs at 5 veterinary hospitals.

Procedure: Records from January 2004 to December 2021 were evaluated for systolic, mean, and diastolic arterial pressures; numbers of hypertensive and hypotensive episodes; highest and lowest systolic arterial pressure differences; dose and duration of phenoxybenzamine; and presence of intraoperative arrhythmias.

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Introduction: Although oral phosphodiesterase 5 inhibitors represent a first choice and long-term option for about half of all patients with erectile dysfunction (ED), self-injection therapy with vasoactive drugs remains a viable alternative for all those who are not reacting or cannot tolerate oral drug therapy. This current injection therapy has an interesting history beginning in 1982.

Objectives: To provide a comprehensive history of self-injection therapy from the very beginnings in 1982 by contemporary witnesses and some members of the International Society for Sexual Medicine's History Committee, a complete history of injection therapy is prepared from eyewitness accounts and review of the published literature on the subject, as well as an update of the current status of self-injection therapy.

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Cannabinoid hyperemesis and pheochromocytoma hypertensive urgency: a case report.

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Department of Anesthesiology, Stanford University, 300 Pasteur Dr., Stanford, CA, 94305, USA.

Background: This report presents a case of cannabinoid-induced hyperemesis syndrome causing repeated violent retching in a patient with a large (8 cm) adrenal pheochromocytoma resulting in hypertensive urgency.

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