Document Detail

Impaired left ventricular diastolic function and vascular postischemic vasodilation associated with microalbuminuria in IDDM patients.
MedLine Citation:
PMID:  7555479     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Microalbuminuria is considered an important predictor of cardiovascular events in diabetic patients. In this study, a possible association of microalbuminuria with significant changes in left ventricular (LV) morphology and function and generalized vascular dysfunction was analyzed in insulin-dependent diabetes mellitus (IDDM) patients without hypertension, coronary artery disease, or autonomic dysfunction. RESEARCH DESIGN AND METHODS: Thirty-four young long-term IDDM patients, 16 with and 18 without microalbuminuria, and 20 control subjects were studied. LV systolic function and wall thickness were evaluated by M-mode echocardiography. LV diastolic function was studied using a combined echo-Doppler and phonocardiographic technique. The hyperemic response to forearm ischemia was measured by strain-gauge plethysmography. All patients underwent 24-h ambulatory blood pressure monitoring. RESULTS: LV mass index and wall thickness:radius ratio were significantly higher in microalbuminuric patients. LV relaxation was significantly impaired in both diabetic groups compared with control subjects; moreover, this impairment was significantly greater in microalbuminuric than in normoalbuminuric patients. In microalbuminuric patients, forearm postischemic vasodilation was also significantly lower and mean awake diastolic blood pressure (dBP) was significantly higher than in the other two groups. CONCLUSIONS: Our data suggest that microalbuminuria is associated with significant changes in LV morphology, a more severe impairment of cardiac diastolic function, altered vascular dilatory capacity, and higher daytime dBP. Therefore, microalbuminuric patients should be considered to have a higher risk of cardiovascular complications and be kept under closer surveillance.
M D Guglielmi; S D Pierdomenico; L Salvatore; F Romano; E Tascione; M Pupillo; E Porreca; T Imbastaro; F Cuccurullo; A Mezzetti
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Diabetes care     Volume:  18     ISSN:  0149-5992     ISO Abbreviation:  Diabetes Care     Publication Date:  1995 Mar 
Date Detail:
Created Date:  1995-11-21     Completed Date:  1995-11-21     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  7805975     Medline TA:  Diabetes Care     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  353-60     Citation Subset:  IM    
Centro per lo Studio e la Terapia dell'Ipertensione Arteriosa, Istituto di Fisiopatologia Medica, Chieti, Italy.
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MeSH Terms
Blood Pressure
Case-Control Studies
Diabetes Mellitus, Type 1 / complications,  physiopathology*,  urine
Diabetic Angiopathies / physiopathology*
Diabetic Retinopathy / epidemiology,  physiopathology
Echocardiography, Doppler
Forearm / blood supply
Heart Rate
Hemoglobin A, Glycosylated / analysis
Ischemia / physiopathology*
Reference Values
Regional Blood Flow
Regression Analysis
Vascular Resistance
Ventricular Dysfunction, Left / physiopathology*
Reg. No./Substance:
0/Hemoglobin A, Glycosylated

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