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Radiología (English Edition) Diabetes and ischemia in stress perfusion cardiac magnetic resonance are compara...
Journal Information
Vol. 67. Issue 6.
(November - December 2025)
Vol. 67. Issue 6.
(November - December 2025)
Original articles
Diabetes and ischemia in stress perfusion cardiac magnetic resonance are comparable risk factors for cardiovascular events
La resonancia magnética cardíaca de estrés como fuerte predictor de eventos cardiovasculares en población diabética
M. Jiménez Martína,
Corresponding author
jimenezm.marta@gmail.com

Corresponding author.
, P.M. Azcárateb, J. Urmeneta Ulloac, A. Ezpondad, G. Bastarrikad
a Departamento de Cardiología, Hospital Universitario HM Montepríncipe, Madrid, Spain
b Departamento de Cardiología, Clínica TDN Pamplona, Pamplona, Spain
c Departamento de Cardiología, Departamento de Radiología, Hospital Universitario Quirón-Salud, Madrid, Spain
d Servicio de Radiología, Clínica Universidad de Navarra, Pamplona, Spain
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Tables (5)
Table 1. Patient demographics and clinical characteristics of the study cohort.
Tables
Table 2. Cardiac magnetic resonance imaging findings of the study cohort.
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Table 3. Baseline clinical characteristics of diabetic and non-diabetic patients according to the degree of myocardial ischaemia on stress perfusion cardiac magnetic resonance.
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Table 4. Cardiac magnetic resonance (CMR) findings in diabetic and non-diabetic patients according to the degree of myocardial ischaemia on stress perfusion CMR. Ischaemia was classified as mild (≤2 myocardial segments affected) or as moderate–severe (more than 2 segments).
Tables
Table 5. Adverse events related to diabetes and the degree of myocardial ischaemia Combined event: major cardiovascular events.
Tables
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Abstract
Introduction

Various studies have explored the concept of diabetes mellitus (DM) as a coronary risk equivalent. However, current evidence does not wholly support this conclusion. This study aimed to ascertain whether DM can be validated as a coronary risk equivalent through stress perfusion cardiac magnetic resonance (stress CMR) imaging.

Material and methods

Three hundred thirty-three patients with and without DM who were referred for stress CMR between 2009 and 2013 were retrospectively reviewed. Images were visually interpreted and classified based on the presence of myocardial ischemia. Survival data and occurrence of major cardiovascular events were recorded and compared.

Results

Of the 333 patients, 139 had DM (133 DM type I y 6 type II), (101 without ischemia, 38 with ischemia) and 194 had no DM (165 without ischemia and 29 with ischemia). A total of 70 events occurred during a median follow-up of 27 months. Diabetic patients without myocardial ischemia had a lower incidence of major cardiovascular events (death any cause, acute coronary syndrome, or need for revascularization) compared with non-diabetic patients with ischemia (16.8% vs. 41.1% respectively, p < 0.001).

Conclusion

Diabetic patients with high cardiovascular risk without ischemia exhibit a more favourable prognosis compared to non-diabetic subjects with high prevalence of obstructive coronary artery disease and ischemia. According to our results, DM may not be considered as equivalent to coronary risk. Patients should be treated individually, given the heterogeneity found in DM population.

Keywords:
Diabetes mellitus
Coronary equivalent
Stress perfusion cardiac magnetic resonance imaging
Resumen
Introducción

Diversos estudios han explorado el concepto de diabetes mellitus (DM) como equivalente de riesgo coronario. Sin embargo, la evidencia actual no respalda del todo esta conclusión. El objetivo de este estudio es determinar si la DM puede validarse como equivalente de riesgo coronario mediante resonancia magnética cardiaca de perfusión de estrés (RMC de estrés).

Materiales y métodos

Se revisaron retrospectivamente 333 pacientes con y sin DM que fueron remitidos para RMC de estrés entre 2009 y 2013. Las imágenes se interpretaron visualmente y se clasificaron en función de la presencia de isquemia miocárdica. Se registraron y compararon los datos de supervivencia y la aparición de eventos cardiovasculares graves.

Resultados

De los 333 pacientes, 139 tenían DM (133 DM tipo I y 6 tipo II), (101 sin isquemia, 38 con isquemia) y 194 no tenían DM (165 sin isquemia y 29 con isquemia). Se produjeron un total de 70 eventos durante una mediana de seguimiento de 27 meses. Los pacientes diabéticos sin isquemia miocárdica tuvieron una menor incidencia de eventos cardiovasculares graves (muerte por cualquier causa, síndrome coronario agudo o necesidad de revascularización) en comparación con los pacientes no diabéticos con isquemia (16,8 % frente a 41,1 % respectivamente, p < 0,001).

Conclusión

Los pacientes diabéticos con alto riesgo cardiovascular sin isquemia presentan un pronóstico más favorable que los sujetos no diabéticos con alta prevalencia de enfermedad coronaria obstructiva e isquemia. Según nuestros resultados, la DM no debe considerarse equivalente al riesgo coronario. Los pacientes deben ser tratados de forma individual, dada la heterogeneidad encontrada en la población con DM.

Palabras clave:
Diabetes mellitus
Equivalente coronario
Resonancia magnética cardiaca de perfusión de estrés

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