Coronary stent implantation in diabetic versus nondiabetic patients. Early and late outcomes.
OBJECTIVE
To assess whether coronary stenting in diabetic patients provides in-hospital results and clinical evolution similar to those in nondiabetic patients.


METHODS
From July '97 to April '99 we performed coronary stent implantation in 386 patients with coronary heart disease, who were divided into two groups: diabetic patients and nondiabetic patients. The in-hospital results and the clinical evolution of each group were retrospectively analyzed.


RESULTS
The nondiabetic group comprised 305 (79%) patients and the diabetic group 81 (21%) patients. Basic clinical and angiographic characteristics were similar. Angiographic success was in diabetics = 96.6% vs in nondiabetics = 97.9% (p=ns). Among the major complications in the in-hospital phase, the rate of myocardial infarction was higher in the diabetic group (7.4% vs 1.9%) (p=0.022). In the follow-up, a favorable and homogeneous evolution occurred in regard to asymptomatic patients, myocardial infarction, and death in the groups. A greater need for revascularization, however, existed in the diabetic patients (15% vs 2.4%, p<0.001).


CONCLUSIONS
Coronary stenting in diabetic patients is an efficient procedure, with a high angiographic and clinical success rate similar to that in nondiabetic patients. Diabetic patients, however, had a higher incidence of in-hospital myocardial infarction and a greater need for additional myocardial revascularization.
Bayerl
D M
DM
Hospital São Joaquim da Real e Benemérita Sociedade Portuguesa de Beneficência, São Paulo, SP, Brazil.
Siqueira
E
E
Moscoso
I
I
Santos
E
E
Maeda
A
A
Bittencourt
O
O
Mauro
M F
MF
Cristovão
S
S
Salman
A
A
Sanches
G
G
Mangione
J A
JA
D016022:Case-Control Studies; D017023:Coronary Angiography; D003327:Coronary Disease / Q000628:therapy*; D003922:Diabetes Mellitus, Type 1 / Q000150:complications; D003925:Diabetic Angiopathies / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology; D009204:Myocardial Revascularization; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome