Title:Renal Function, Albumin-Creatinine Ratio and Pulse Wave Velocity Predict Silent Coronary Artery Disease and Renal Outcome in Type 2 Diabetic and Prediabetic Subjects
Volume: 17
Issue: 2
Author(s): Ramiro A. Sanchez*, Maria J. Sanchez and Agustin J. Ramirez
Affiliation:
- Hypertension and Metabolic Unit, Favaloro Foundation, Buenos Aires,Argentina
Keywords:
Type 2 diabetes, coronary heart disease, pulse wave velocity, renal impairment, renal function, albumin-creatinine
ratio.
Abstract:
Introduction: Silent coronary heart disease is frequently undetected in type 2 diabetes
mellitus (DM2) and pre-diabetes determined by glucose intolerance (GI).
Pulse wave velocity (PWV) and albumin-creatinine ratio (ACR) have been considered markers of
cardiovascular mortality, coronary heart disease and chronic renal failure.
Aim: To evaluate the incidence of coronary artery disease (CAD) and the relationship between urinary
albumin-creatinine ratio, glomerular filtration rate (GFR) and PWV in type 2 DM with silent
CAD.
Methods: We analyzed 92 individuals (44 male), 49 (60±7y) type 2 DM non-insulin dependents
and 43 prediabetics (43±4y), with Grade I-II hypertension and no symptoms of CAD.
All type 2 DM patients were under antidiabetic treatment with A1C hemoglobin between 5.5 and
6.5%.
Every patient underwent a myocardial perfusion SPECT scan. In those subjects with ischemic patterns,
coronary angiography was performed. In addition, PWV, glomerular filtration rate, and ACR
were evaluated. Statistics: mean±SEM, and ANOVA among groups.
Results: 48.59% of DM2 and 25.58% of GI patients had silent coronary artery had silent coronary
artery disease and higher ACR, PWV and reduced GFR. Higher ACR and PWV and reduced GFR.
DM2 and GI showed a negative relationship between GFR and ACR. Moreover, this relation was
also observed in different levels of GFR (>60 ml/min and <60ml.min (p<0.05) in patients with
CAD, suggesting a cardio-renal interaction in DM2.
Conclusion: Higher PWV, lower GFR and ACR predict the incidence of CAD in DM2. Dysglycemic
individuals also represent a group of higher risk for coronary artery disease with similar
predictors as in DM2. Diabetic and prediabetics still develop renal microalbuminuria. Thus, PWV
seems to represent a reliable marker of renal impairment and coronary artery disease.