Abstract:
:Coronary arteries in diabetic patients appear to be narrower than in normal subjects, but this has not been examined systematically. To investigate this hypothesis we reviewed the data of 711 consecutive patients with angiographically 'normal coronary arteries'. Excluded were patients with valvular, myocardial or pericardial disease, and patients with hypertension or hyperlipidemia. Thirteen diabetic patients (10 men) and 22 nondiabetic persons (8 men) constituted the study and control groups, respectively. The diameters of the coronary arteries and their branches were measured and adjusted for body surface area. The sum of the proximal left anterior descending (LAD), circumflex and right coronary arteries (RCA) was calculated and defined as total coronary diameter (TCD). The sum of the distal LAD, first diagonal, first marginal and distal RCA was calculated and defined as total distal coronary diameter (dTCD). The clinical data of both groups were comparable. Adjusted TCD for body surface area was 5.4 +/- 1.1 and 6.5 +/- 1.1 mm/m2 (p < 0.05) in diabetics and nondiabetics, respectively, and adjusted dTCD was 4.9 +/- 1.2 and 6.1 +/- 1.2 mm/m2 (p = 0.01) in diabetics and normal subjects, respectively. Specific arteries and branches that were significantly smaller in diabetics included: left main coronary artery, distal LAD, first diagonal, proximal RCA, distal RCA, right ventricular branch, and posterolateral and posterior descending artery of RCA origin. Gender was not a confounding factor since the control group had a larger proportion of women and still larger arteries than the diabetic group. In conclusion, coronary arteries and their branches in diabetic patients have smaller diameters than normal subjects. This may be due to increased coronary tone, diffuse mild atherosclerosis or both.
journal_name
Cardiologyjournal_title
Cardiologyauthors
Mosseri M,Nahir M,Rozenman Y,Lotan C,Admon D,Raz I,Gotsman MSdoi
10.1159/000006764subject
Has Abstractpub_date
1998-01-01 00:00:00pages
103-10issue
2eissn
0008-6312issn
1421-9751pii
crd89103journal_volume
89pub_type
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