Body Mass Index Is Independently Associated with the Presence of Ischemia in Myocardial Perfusion Imaging

Abstract

Background and Objectives: Obesity has been linked to various cardiovascular risk factors, increased incidence of coronary artery disease, and myocardial perfusion defects. The aim of this study was to investigate if body mass index (BMI) and waist circumference (WC) were associated with myocardial perfusion defects. Materials and Methods: A total of 308 consecutive patients who had myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) and a complete medical record on file were studied retrospectively. Results: The median age was 69 (61–76) years, the BMI was 27.6 (24.4–30.7) kg/m2, and the WC was 110 (102–118) cm. Of the 308 patients, 239 patients (77.6%) had myocardial ischemia. A positive test for ischemia was more frequent in men compared to women (72 vs. 28%, p < 0.001). Within the male group, BMI and WC were not significantly different between the ischemia and non-ischemia groups. In contrast, within the female group, both BMI (30.2 vs. 27.1 kg/m2, p = 0.002) and WC (112 vs. 105.5 cm, p = 0.020) were significantly higher in the ischemia group. Multivariable logistic regression showed that male sex and BMI were the only two independent predictors of ischemia in our patient population. Conclusions: This study showed that BMI was an independent predictor of ischemia in our patient population.

Myocardial Perfusion Imaging and C-Reactive Protein in Myocardial Ischemia: A Retrospective Single-Center Study

“…A summed stress score (SSS) of over 3 was considered myocardial ischemia [SSS corresponds to either stress-induced or resting perfusion defects (i.e., ischemia + infarct)]. Myocardial ischemia was mild for SSS 4 to 8, moderate for SSS 9 to 13, and high if SSS was above thirteen [31]. Summed rest score (SRS) corresponds to perfusion defects at rest indicating probable myocardial scar.…”

Tackling Dyslipidemia in Obesity from a Nanotechnology Perspective

“…This is a clinical parameter that determines the nutritional status independent of BMI [5]. However, even if both BMI and WC are considered indices that provide independent information about the outcomes of patients, there are also limitations to their use, such as in patients with coronary artery disease [6]. The recommended indication suggests that the assessment of obesity should be performed on patients prior to revascularization interventions for a more accurate prognosis.…”