RÉSUMÉ
ObjectiveTo investigate the effect of remnant cholesterol （RC）/high-density lipoprotein cholesterol （HDL-C） ratio on coronary computed tomography-derived fractional flow reserve （FFRct） in coronary heart disease （CHD） patients with critical lesions. MethodsA retrospective study was done on patients who were admitted to our department and underwent coronary computed tomography angiography （CCTA） from January 1， 2022 to December 31， 2022. All the 304 culprit vessels from the 219 patients with moderate coronary artery stenosis （50%~70%） were divided into FFRct ischemia group （FFRct≤0.8， N=108） and FFRct non-ischemia group （FFRct>0.8， N=111）. Multivariate logistic regression analysis was used to explore the influencing factors of FFRct≤0.8 in CHD patients with critical lesions. Receiver operating characteristic （ROC） curve was drawn to evaluate the predictive value of RC/HDL-C for FFRct≤0.8. Pearson correlation analysis was used to assess whether there was a correlation between RC/HDL-C and FFRct. ResultsThere were significantly more diabetic patients in FFRct ischemia group （P<0.001）. RC/HDL-C ratio， levels of RC， non-HDL-C， APOB， HbA1c and FPG in FFRct ischemic group were significantly increased （P<0.05）. Pearson correlation analysis showed that the RC/HDL-C ratio， levels of RC， Non-HDL-C， TC， TG， LDL-C， HDL-C， LP（a）， HbA1c， and FPG were all significantly negatively correlated with FFRct values （P<0.05）. Univariate logistic regression analysis showed that diabetes mellitus， RC/HDL-C ratio， levels of RC， non-HDL-C， TG， LP（a）， HbA1c and FPG were significantly correlated with FFRct≤0.8 （P<0.05）. Multivariate logistic regression analysis showed that RC/HDL-C ratio was a predictor of FFRct≤0.80 （OR=4.682， 95%CI 1.197~18.316， P<0.05）. ConclusionsRC/HDL-C ratio is independently correlated with FFRct≤0.8 in CHD patients with moderate stenosis and it is a potential indicator for evaluating coronary functional ischemia.
RÉSUMÉ
@#【Objective】Diabetes mellitus is a risk equivalent for coronary heart disease. This retrospective study was designed to investigate the risk factors of the progression of coronary lesions in patients with type 2 diabetes（T2DM）and Non- diabetes Mellitus（NDM）.【Methods】 526 patients with T2DM and 425 patients with NDM at the Third Affiliated Hospital of Sun Yat-sen University between March 2001 and January 2017 who underwent coronary imaging studies（coronary angiography or coronary CTA）twice during the same period were enrolled. The effects of cardiovascular risk factors on the progression of coronary lesions were analyzed in parallel in these two types of patients.【Results】Risk factors of the progression of coronary lesions in T2DM patients included smoking（OR = 1.836，95% CI：1.030~3.371，P = 0.04），Lp（a） ［OR = 1.001，95% CI：1.000~1.002，P = 0.004（baseline）；OR = 1.001，95% CI：1.000~1.002，P = 0.009（re-examined）］，HbA1c leve［l OR = 1.471，95% CI：1.030~2.100，P = 0.034（re-examined）］，uncontrolled LDL-C（OR = 1.882，95% CI：1.091~3.245，P = 0.023），TC［OR = 2.029，95% CI：1.028~4.008，P = 0.041（re-examined）］and low HDL-C ［OR = 0.017，95% CI：0.040~0.729，P = 0.017（re-examined）］. Comparative risk factors in NDM included BMI［OR =1.746，95%CI：2.462~2.712，P = 0.026（baseline）；OR = 0.001，95%CI：0~0.394，P = 0.025（re-examined）］，uncontrolled LDL-C（OR = 2.875，95%CI：1.669~4.952，P < 0.001）and low ApoA［OR = 0.282，95%CI：0.082~0.971，P = 0.045 （baseline）；OR = 0.117，95%CI：0.038~0.835，P = 0.029（re-examined）］. Lowest level of progression was found in the group with HbA1c<6.5%［0（0~3.4）points/year vs 0.3（0~3.0）points/year vs 1.0（0~5.1）points/year，P = 0.049. 0（-0.4~2.7）points/year vs 0.6（0~4.0）points/year vs 0.9（0~4.2）points/year，P=0.029］in T2DM patients.【Conclusion】Except for achievement of LDL- C goals，there might be some differences in risk factors for progression of coronary lesions between T2DM and NDM patients. Smoking，Lp（a），TC，HDL- C and control levels of HbA1c are independent predictors in T2DM as well as BMI and ApoA in NDM. Lowering HbA1c to less than 6.5% may delay progression of lesion.