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Anaesthetic management and complications of balloon valvuloplasty for pulmonic stenosis in dogs
  1. J. Viscasillas1,
  2. S. Sanchis-Mora2,
  3. C. Palacios3,
  4. A. Mathis4,
  5. H. Alibhai1 and
  6. D. C. Brodbelt5
  1. 1Department of Clinical Sciences and Services, Royal Veterinary College, North Mymms, Hertfordshire, UK
  2. 2Royal Veterinary College, North Mymms, Hertfordshire, UK
  3. 3Department of Small Animal Clinical Sciences, University of Saskatchewan, Saskatoon, Canada
  4. 4Department of Anaesthesia, Willows Referral Service, Solihull, UK
  5. 5Department of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire, UK
  1. E-mail for correspondence: jviscasillas{at}

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PULMONIC stenosis (PS) is a common congenital cardiac defect in dogs (Buchanan 1992). Depending on the type of stenosis and its severity, surgical management is required. Balloon valvuloplasty (BV) is a non-invasive surgical technique that has become commonly performed in veterinary medicine (Bussadori and others 2001).

Several protocols to anaesthetise patients undergoing this procedure have been described. However, only one retrospective study (Ramos and others 2014) assessing and reporting the perioperative complications during BV has been published recently.

The aim of this study was to describe the anaesthetic management used over the past years in a large referring European veterinary institution and to explore which major factors are associated with complications in dogs undergoing BV.

Forty-six dogs in which PS was managed with BV were included in this study. Parameters included in the analysis were breed, age, sex, weight, American Society of Anesthesiologists (ASA) status, severity of the stenosis, systolic pressure gradient, heart remodelling, presence of heart failure, patient medication, concurrent problems, use of NSAIDs, drugs used for premedication, induction and maintenance of anaesthesia, use of intermittent positive pressure ventilation (IPPV), use of other drugs, hypotension (mean arterial blood pressure <60 mmHg for at least five minutes), bradycardia (heart rate <50 beats per minute (bpm)), tachycardia (heart rate >140 bpm), systemic hypertension (systolic arterial blood pressure >160 mmHg for at least five minutes), arrhythmias, treatment of complications, temperature at the end of procedure, length of …

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