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Journal article
Aortic annular plane systolic excursion in cats with hypertrophic cardiomyopathy
Journal of veterinary internal medicine, Vol.38(1), pp.61-70
2024
PMID: 38038190
Abstract
Background
Impairment of left ventricular (LV) longitudinal function is an early marker of systolic dysfunction in hypertrophic cardiomyopathy (HCM). Aortic annular plane systolic excursion (AAPSE) is a measure of LV longitudinal function in people that has not been evaluated in cats.
Hypothesis
Aortic annular plane systolic excursion is lower in cats with HCM compared to control cats, and cats in stage C have the lowest AAPSE.
Animals
One hundred seventy-five cats: 60 normal, 61 HCM stage B and 54 HCM stage C cats.
Materials
Multicenter retrospective case-control study. Electronic medical records from 4 referral hospitals were reviewed for cats diagnosed with HCM and normal cats. HCM was defined as LV wall thickness ≥6 mm and normal cats ≤5 mm. M-mode bisecting the aorta in right parasternal short-axis view was used to measure AAPSE.
Results
Aortic annular plane systolic excursion was lower in HCM cats compared to normal cats (3.9 ± 0.9 mm versus 4.6 ± 0.9 mm, P < .001) and was lowest in HCM stage C (2.4 ± 0.6 mm, P < .001). An AAPSE <2.9 mm gave a sensitivity of 83% (95% CI 71%-91%) and specificity of 92% (95% CI 82%-97%) to differentiate HCM stage C from stage B. AAPSE correlated with mitral annular plane systolic excursion (r = .6 [.4-.7], P < .001), and atrial fractional shortening (r = .6 [.5-.7], P < .001), but showed no correlation with LV fractional shortening.
Conclusions and Clinical Importance
Aortic annular plane systolic excursion is an easily acquired echocardiographic variable and might be a new measurement of LV systolic performance in cats with HCM.
Details
- Title
- Aortic annular plane systolic excursion in cats with hypertrophic cardiomyopathy
- Authors/Creators
- Luke C. Dutton - University of CambridgeIlaria Spalla - Ospedale Veterinario San FrancescoJoonbum Seo - Animal Referral CentreJoel Silva - North Downs Specialist Referrals, The Friesian Buildings 3 & 4Jose Novo Matos - University of Cambridge
- Publication Details
- Journal of veterinary internal medicine, Vol.38(1), pp.61-70
- Publisher
- John Wiley & Sons, Inc.
- Number of pages
- 10
- Identifiers
- 991005912958907891
- Copyright
- © 2023 The Authors.
- Murdoch Affiliation
- School of Veterinary Medicine
- Language
- English
- Resource Type
- Journal article
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