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Reduced systemic arterial compliance measured by routine Doppler echocardiography: A new and independent predictor of mortality in patients with type 2 diabetes mellitus
- Source :
- Atherosclerosis. 225:353-358
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- Objectives This study was designed to examine the prognostic value of systemic arterial compliance (SAC) by Doppler-echocardiography in patients with type 2 diabetes mellitus (T2D). Background Reduced SAC has been shown to predict outcomes in patients with hypertension. T2D is associated with accelerated arterial stiffening and increased cardiovascular events. We hypothesized that SAC measured by Doppler-echocardiography would independently predict mortality in patients with T2D. Methods Since 2001, SAC calculated as the ratio of stroke volume index to arterial pulse pressure by sphygmomanometer is routinely performed in our laboratory. Data from 505 consecutive patients with T2D were retrospectively analyzed. Based on a previously validated cut-off value of SAC 2 /mmHg, patients were divided into Group 1, reduced SAC, 255 patients (50%) and Group 2, preserved SAC, 250 patients (50%). The primary endpoint was overall mortality. Results Patients with reduced SAC had significantly lower 5-year survival than those with preserved SAC (66 ± 5 vs. 82 ± 5%, p = 0.02) and a 1.57-fold (95% CI: 1.04–2.43; p = 0.03) increased risk of mortality after adjusting for other risk factors. Blood pressure did not predict mortality and pseudo-normalized blood pressures related to LV dysfunction and low cardiac output were found in 75 patients (15%). Conclusion Reduced SAC is encountered frequently in T2D, is an independent predictor of mortality and allows identification of patients who, despite a normal blood pressure, are at increased risk. Future studies are necessary to further evaluate the clinical utility of this simple echocardiographic parameter and therapies are needed to alter vascular stiffness to improve clinical outcomes in these high-risk patients.
- Subjects :
- Male
medicine.medical_specialty
Time Factors
Kaplan-Meier Estimate
Doppler echocardiography
Risk Assessment
Ventricular Function, Left
Coronary artery disease
Ventricular Dysfunction, Left
Vascular Stiffness
Predictive Value of Tests
Risk Factors
Internal medicine
medicine
Humans
Arterial Pressure
Cardiac Output
Aged
Proportional Hazards Models
Retrospective Studies
Arterial pulse pressure
Chi-Square Distribution
Ejection fraction
medicine.diagnostic_test
business.industry
Blood Pressure Determination
Stroke volume
Middle Aged
Prognosis
Sphygmomanometers
medicine.disease
Echocardiography, Doppler
Pulse pressure
Blood pressure
Diabetes Mellitus, Type 2
Predictive value of tests
Hypertension
Multivariate Analysis
Cardiology
Female
Cardiology and Cardiovascular Medicine
business
Compliance
Subjects
Details
- ISSN :
- 00219150
- Volume :
- 225
- Database :
- OpenAIRE
- Journal :
- Atherosclerosis
- Accession number :
- edsair.doi.dedup.....38f6a45af0a1c108864ccc4cef387c12