Outcome in 55 dogs with pulmonic stenosis that did not undergo balloon valvuloplasty or surgery

A.J. Francis, M.J.S. Johnson, G.C. Culshaw, B.M. Corcoran, M.W.S. Martin, A.T. French

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

OBJECTIVE: To determine the outcome, independent predictors of cardiac death, and the Doppler-derived pressure gradient cut-off for predicting cardiac death in dogs with pulmonic stenosis, with or without tricuspid regurgitation, that do not undergo balloon valvuloplasty or valve surgery. Methods: Review of medical records of two UK referral centres between July 1997 and October 2008 for all cases of pulmonic stenosis that had no balloon valvuloplasty or valve surgery. Inclusion criteria included a diagnosis of pulmonic stenosis; spectral Doppler pulmonic velocity greater than 1 center dot 6 m/s; characteristic valve leaflet morphological abnormalities. Exclusion criteria included concurrent significant cardiac defects, including tricuspid dysplasia. Dogs with tricuspid regurgitation were included. Dogs were classified according to Doppler-derived pressure gradients into mild, moderate or severe pulmonic stenosis categories. Results: Presence of tricuspid regurgitation and severe stenosis were independent predictors of cardiac death. A pulmonic pressure gradient of more than 60 mmHg was associated with 86% sensitivity, and 71% specificity of predicting cardiac death. Clinical Significance: There is an increased probability of cardiac death in those cases which have a pulmonary pressure gradient greater than 60 mmHg and tricuspid regurgitation, though the effect of severity of tricuspid regurgitation on outcome was not measurable because of small sample sizes. These animals might benefit from intervention.
Original languageUndefined/Unknown
Pages (from-to)282-288
Number of pages7
JournalJournal of Small Animal Practice
Volume52
Issue number6
DOIs
Publication statusPublished - 2011

Keywords / Materials (for Non-textual outputs)

  • adults

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