PMID- 16750781 OWN - NLM STAT- MEDLINE DCOM- 20070116 LR - 20181113 IS - 1071-3581 (Print) IS - 1071-3581 (Linking) VI - 13 IP - 3 DP - 2006 May-Jun TI - Value of peripheral vascular endothelial function in the detection of relative myocardial ischemia in asymptomatic type 2 diabetic patients who underwent myocardial perfusion imaging. PG - 362-8 AB - BACKGROUND: Endothelial dysfunction precedes overt atherosclerosis and is present in patients with type 2 diabetes mellitus (T2DM). Myocardial perfusion imaging (MPI) is an effective method of detection of coronary artery disease (CAD); however, the relationship between endothelial function and MPI in asymptomatic patients with T2DM has not been examined. METHODS AND RESULTS: This study used a subset of the population from the Detection of Ischemia in Asymptomatic Diabetics (DIAD) study. Endothelium-dependent vasodilation (EDV) and endothelium-independent vasodilation (EIV) were measured by use of brachial artery ultrasonography in 75 asymptomatic patients with T2DM (56 men; mean age, 58.6 +/- 6.4 years; mean duration of diabetes, 8.4 +/- 7.5 years) who underwent adenosine MPI. Of the patients, 15 (20%) had evidence of relative ischemia (MPI(+)) whereas 60 (80%) had a normal study (MPI(-)). Both EDV (3.5% +/- 3.7% vs 4.5% +/- 6.6%, P = not significant) and EIV (15.1% +/- 7.5% vs 16.8% +/- 8.4%, P = not significant) were similar in the 2 groups. On the basis of a receiver-operator analysis, an EDV response of 8% was selected as a cut point, with a negative predictive value of 93% (13/14 subjects with EDV >or=8% were MPI(-)). CONCLUSIONS: Endothelial function in asymptomatic patients with T2DM is not associated with the presence of relative myocardial ischemia by MPI; however, an EDV of 8% or greater has a high negative predictive value for the exclusion of CAD. FAU - Papaioannou, Georgios I AU - Papaioannou GI AD - Henry Low Heart Center, Cardiology Division, Hartford Hospital, CT 06102, USA. FAU - Kasapis, Christos AU - Kasapis C FAU - Seip, Richard L AU - Seip RL FAU - Grey, Neil J AU - Grey NJ FAU - Katten, Deborah AU - Katten D FAU - Wackers, Frans J Th AU - Wackers FJ FAU - Inzucchi, Silvio E AU - Inzucchi SE FAU - Engel, Samuel AU - Engel S FAU - Taylor, Amy AU - Taylor A FAU - Young, Lawrence H AU - Young LH FAU - Chyun, Deborah A AU - Chyun DA FAU - Davey, Janice A AU - Davey JA FAU - Iskandrian, Ami E AU - Iskandrian AE FAU - Ratner, Robert E AU - Ratner RE FAU - Robinson, Evelyn C AU - Robinson EC FAU - Carolan, Stella AU - Carolan S FAU - Heller, Gary V AU - Heller GV LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Nucl Cardiol JT - Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology JID - 9423534 RN - 0 (Vasodilator Agents) RN - G59M7S0WS3 (Nitroglycerin) SB - IM MH - Adult MH - Aged MH - Cohort Studies MH - Diabetes Mellitus, Type 2/*complications/metabolism/*pathology MH - Endothelium, Vascular/*pathology MH - Female MH - Humans MH - Image Processing, Computer-Assisted MH - Ischemia/pathology MH - Male MH - Middle Aged MH - Myocardial Ischemia/*complications/*pathology MH - Myocardium/pathology MH - Nitroglycerin/pharmacology MH - Perfusion MH - Vasodilator Agents/pharmacology EDAT- 2006/06/06 09:00 MHDA- 2007/01/17 09:00 CRDT- 2006/06/06 09:00 PHST- 2005/08/16 00:00 [received] PHST- 2006/01/30 00:00 [accepted] PHST- 2006/06/06 09:00 [pubmed] PHST- 2007/01/17 09:00 [medline] PHST- 2006/06/06 09:00 [entrez] AID - S1071-3581(06)00115-2 [pii] AID - 10.1016/j.nuclcard.2006.01.022 [doi] PST - ppublish SO - J Nucl Cardiol. 2006 May-Jun;13(3):362-8. doi: 10.1016/j.nuclcard.2006.01.022.