In diabetics on OHA there is some data in the literature that large vessels beyond 3.5mm you can get away with a BMS and less restenosis.It will be DES for diabetics on insulin
This is the classic incomplete question. Incomplete answers can be performed.
It is well demonstrated that in diabetics there is little place for stents. It is well demonstrated in multiple vessel disease the classic "old fashioned" coronary bypass is the best strategy for this patients.
Of course, my answer is incomplete too, because THE PATIENT status, left ventricular function and the exact localization of the stenosis, diameter of the native vessel are VERY IMPORTANT.
Des have revolutionized the endotelium in patients too generating chronic endotelitis (lecture recommended above).
Lectures recommended, European Task force, indications for coronary revascularization.
I add in a more personal opinion. If you have a 3mm vessel, the probability of a perfect anastomosis and an excellent outcome for more than 10 years (or more) with surgical revascularization is warranteed.
You have also warranteed 5 0 6 stents in 10 years in the same patient, with a lot of readmissions in ICU for unstable angina if you start with overindicated (or not) stents
Actually I have lost my belief to DES. But, in those diameters and diabetic patients are ideal candiates for DES. But, I dont advise the usage of DES grater than 3.5. mm even the patient has diabetes.