A total of 124 patients met inclusion criteria. The mean age was 31 ± 4 years for both sexes. Approximately half (49%) of the patients were obese (body mass index greater than or equal to 30 kg/m2); 90% of patients had at least 1 traditional risk factor, most commonly hyperlipidemia (63%) and smoking (60%); 52% of patients underwent re-vascularization, of which 94% were by percutaneous coronary intervention, and 42.9% of patients had intracoronary thrombus, of whom approximately one third had no detectable underlying coronary disease.
Very young patients with acute coronary syndrome tend to be obese, with a high prevalence of smoking and hyperlipidemia. The presence of thrombus in the absence of underlying coronary disease suggests a thromboembolic event or de novo thrombotic occlusion, which may reflect primary hemostatic dysfunction in a considerable number of these patients.
When I first saw the title of this paper I was expecting to see a lot of novel genetic risk factors, but apparently the investigators did not look for those.