Pulmonic stenosis in dogs: survival and risk factors in a retrospective cohort of patients

Objectives To assess survival and risk factors in dogs with pulmonic stenosis. Methods A retrospective review of medical case records of all cases of pulmonic stenosis >50 mmHg, undergoing pulmonary balloon valvuloplasty or not. Survival curves and multivariate analysis were calculated in the overall population and in subgroups. Results One hundred and seventy-two cases were included. Factors negatively affecting survival were clinical signs [hazard ratio (HR) 3 · 44, P