Comparison of auscultatory and echocardiographic findings in healthy adult cats

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• 作者：Tobias Wagner ; Virginia Luis Fuentes ; Jessie Rose Payne ; Noemie McDermott ; David Brodbelt
• 关键词：Hypertrophic cardiomyopathy ; Feline ; Echocardiography ; Auscultation ; Murmur
• 刊名：Journal of Veterinary Cardiology
• 出版年：2010
• 出版时间：December 2010
• 年：2010
• 卷：12
• 期：3
• 页码：171-182
• 全文大小：742 K

文摘

Objectives

This pilot study was performed to investigate murmur prevalence and to explore the association between auscultatory and echocardiographic findings in apparently healthy cats in order to design a larger study.

Animals, materials and methods

Adult cats in 4 rehoming centres were screened by auscultation and echocardiography (echo) over 2 periods of 2 weeks each. In the first period, echo was attempted only in cats with murmurs. In the second period, all cats underwent auscultation by 2 observers and echo. LVH was defined in 5 ways: maximal diastolic left ventricular (LV) wall thickness ≥6 mm or ≥5.5 mm with 2D (LVH_{6 2D}, LVH_{5.5 2D}, respectively) or M-Mode echo (LVH_{6 MM} or LVH_{5.5 MM} respectively), or LV wall thickness ≥6 mm (2D) for >50 % of a wall segment (LVH_{50 %} ).

Results

67/199 (34 % ) cats had a murmur. Interobserver agreement on murmur presence was moderate (κ 0.47). 61 cats with a murmur and 31 cats without underwent both auscultation and echo. Depending on the criteria, LVH was present in 31 (LVH_{6 2D}), 21 (LVH_{50 %} ) and 11 (LVH_{6 MM}) scanned cats. 18–62 % of cats with murmurs had LVH, depending on the echo criteria used. Agreement was best between observers in identifying LVH using LVH_{6 2D} and LVH_{50 %} (κ = 1.0).

Conclusions

Heart murmurs are common in apparently healthy cats. The prevalence of LVH varies depending on the criteria used.