Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group

Aim. To assess the development of adverse cardiovascular events in patients with non-obstructive coronary artery disease (CAD) and coronary microvascular dysfunction (CMD), identified by dynamic myocardial single-photon emission computed tomography (SPECT), during 12-month follow-up compared with pa...

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Main Authors: K. V. Kopyeva, A. N. Maltseva, A. V. Mochula, E. V. Grakova, K. V. Zavadovsky
Format: Article
Language:Russian
Published: «FIRMA «SILICEA» LLC 2023-04-01
Series:Российский кардиологический журнал
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Online Access:https://russjcardiol.elpub.ru/jour/article/view/5269
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author K. V. Kopyeva
A. N. Maltseva
A. V. Mochula
E. V. Grakova
K. V. Zavadovsky
author_facet K. V. Kopyeva
A. N. Maltseva
A. V. Mochula
E. V. Grakova
K. V. Zavadovsky
author_sort K. V. Kopyeva
collection DOAJ
description Aim. To assess the development of adverse cardiovascular events in patients with non-obstructive coronary artery disease (CAD) and coronary microvascular dysfunction (CMD), identified by dynamic myocardial single-photon emission computed tomography (SPECT), during 12-month follow-up compared with patients without CMD.Material and methods. The study included 118 patients (70 men, mean age, 62,0 [58,0; 69,0] years) with preserved ejection fraction (62 [59; 64] %) and non-obstructive CAD. Serum levels of the N-terminal pro-brain natriuretic peptide were assessed at baseline by enzyme immunoassay. Coronary flow reserve (CFR) was assessed by dynamic SPECT. CFR ≤2 was a CMD marker.Results. Six patients discontinued participation in the study due to loss of contact with them, while the rest were divided into groups depending on CMD presence: group 1 included patients with CMD (CFR ≤2; n=42), and group 2 was the control group and included patients without CMD (CFR >2; n=70). Within 12-month follow-up, 25 patients reported adverse events. According to Kaplan-Meier analysis, the prevalence of adverse cardiovascular events was higher in patients with CMD (45,2%, n=19) than in patients without it (8,6%, n=6) (p<0,001). Multivariate regression analysis showed that the presence of CMD (odds ratio (OR), 2,42; 95% confidence interval (CI), 1,26-5,85; p<0,001) and diastolic dysfunction (OR, 3,27; 95% CI, 2,26-5,64; p<0,001) were independent predictors of poor outcomes. The combination of CMD with diastolic dysfunction more than 5 times increased the risk of adverse events (OR, 5,18; 95% CI, 3,61-11,84; p<0,001).Conclusion. We found that in patients with non-obstructive CAD, the presence of CMD, identified by dynamic myocardial SPECT, was associated with a higher risk of adverse cardiovascular events within 12-month follow-up period than in patients without CMD. At the same time, the combination of CMD with diastolic dysfunction more than 5 times increased the risk of adverse outcomes.
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spelling doaj-art-a27fa0646539401683cf9fde9af3a8e32025-08-04T13:00:30Zrus«FIRMA «SILICEA» LLCРоссийский кардиологический журнал1560-40712618-76202023-04-0128310.15829/1560-4071-2023-52693780Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control groupK. V. Kopyeva0A. N. Maltseva1A. V. Mochula2E. V. Grakova3K. V. Zavadovsky4Cardiology Research Institute, Tomsk National Research Medical CenterCardiology Research Institute, Tomsk National Research Medical CenterCardiology Research Institute, Tomsk National Research Medical CenterCardiology Research Institute, Tomsk National Research Medical CenterCardiology Research Institute, Tomsk National Research Medical CenterAim. To assess the development of adverse cardiovascular events in patients with non-obstructive coronary artery disease (CAD) and coronary microvascular dysfunction (CMD), identified by dynamic myocardial single-photon emission computed tomography (SPECT), during 12-month follow-up compared with patients without CMD.Material and methods. The study included 118 patients (70 men, mean age, 62,0 [58,0; 69,0] years) with preserved ejection fraction (62 [59; 64] %) and non-obstructive CAD. Serum levels of the N-terminal pro-brain natriuretic peptide were assessed at baseline by enzyme immunoassay. Coronary flow reserve (CFR) was assessed by dynamic SPECT. CFR ≤2 was a CMD marker.Results. Six patients discontinued participation in the study due to loss of contact with them, while the rest were divided into groups depending on CMD presence: group 1 included patients with CMD (CFR ≤2; n=42), and group 2 was the control group and included patients without CMD (CFR >2; n=70). Within 12-month follow-up, 25 patients reported adverse events. According to Kaplan-Meier analysis, the prevalence of adverse cardiovascular events was higher in patients with CMD (45,2%, n=19) than in patients without it (8,6%, n=6) (p<0,001). Multivariate regression analysis showed that the presence of CMD (odds ratio (OR), 2,42; 95% confidence interval (CI), 1,26-5,85; p<0,001) and diastolic dysfunction (OR, 3,27; 95% CI, 2,26-5,64; p<0,001) were independent predictors of poor outcomes. The combination of CMD with diastolic dysfunction more than 5 times increased the risk of adverse events (OR, 5,18; 95% CI, 3,61-11,84; p<0,001).Conclusion. We found that in patients with non-obstructive CAD, the presence of CMD, identified by dynamic myocardial SPECT, was associated with a higher risk of adverse cardiovascular events within 12-month follow-up period than in patients without CMD. At the same time, the combination of CMD with diastolic dysfunction more than 5 times increased the risk of adverse outcomes.https://russjcardiol.elpub.ru/jour/article/view/5269heart failurepreserved ejection fractioncoronary microvascular dysfunctionprognosiscoronary blood flow reserve
spellingShingle K. V. Kopyeva
A. N. Maltseva
A. V. Mochula
E. V. Grakova
K. V. Zavadovsky
Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group
Российский кардиологический журнал
heart failure
preserved ejection fraction
coronary microvascular dysfunction
prognosis
coronary blood flow reserve
title Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group
title_full Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group
title_fullStr Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group
title_full_unstemmed Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group
title_short Adverse cardiovascular events in patients with coronary microvascular dysfunction: results of a 12-month follow-up with a control group
title_sort adverse cardiovascular events in patients with coronary microvascular dysfunction results of a 12 month follow up with a control group
topic heart failure
preserved ejection fraction
coronary microvascular dysfunction
prognosis
coronary blood flow reserve
url https://russjcardiol.elpub.ru/jour/article/view/5269
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