Utility of myocardial perfusion scintigraphy in abdominal aortic aneurysm repair and prognostication of cardiovascular events and mortality. / Han, Thang S.

In: British Journal of Cardiology, Vol. 25, No. 4, 10.2018, p. 150-151.

Research output: Contribution to journalArticle

Published
  • Thang S. Han

Abstract

Myocardial perfusion scintigraphy (MPS) is a non-invasive method that can be used to assess reversible left ventricular myocardial perfusion defect (<20% indicates limited and ≥20% indicates extensive ischaemia), and left ventricular ejection fraction (LVEF) at rest and at stress. Data on the utility of MPS used to stratify cardiac risk prior to abdominal aortic aneurysm (AAA) repairs are limited. We evaluated MPS as a stratification tool for patients scheduled for endovascular aneurysm repair (EVAR) or open repair, between 2013 and 2016 at Ashford and St Peter’s NHS Foundation Trust, and 4.9 years (median 2.8 years, interquartile range [IQR] 2.1–3.8) cardiovascular events (n=15, 17.9%) all-cause mortality (n=17, 22.6%). Of the 84 patients recruited (median age 75.7 years, IQR 69.4–79.6), 57 (67.9%) had limited and 27 (32.1%) extensive ischaemia, 62 (73.8%) underwent EVAR and 22 (26.2%) open repair. Compared with open repair patients, EVAR patients were older (median age 70.6 years vs. 76.4 years, p=0.015), had higher rates of extensive ischaemia (13.6% vs. 38.7%, p=0.025), and abnormal LVEF reserve (LVEF at stress minus LVEF at rest ≤0: 40.0% vs. 76.6%, p=0.011), while having lower rates of 30-day postoperative major adverse cardiac events (13.6% vs. 3.3%, p=0.040) but no difference for cardiovascular events (p=0.179) or 4.9 year all-cause mortality (22.7% vs. 22.6%, adjusted hazard ratio 0.80, 95% confidence interval [CI] 0.22 to 3.20, p=0.799). Our findings indicate that MPS provides valuable information for AAA repair procedure.
Original languageEnglish
Pages (from-to)150-151
Number of pages2
JournalBritish Journal of Cardiology
Volume25
Issue number4
Early online date24 Oct 2018
DOIs
Publication statusPublished - Oct 2018
Externally publishedYes
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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