ABO antigens are highly abundant in many human cell types, including platelets, vascular endothelium, and red blood cells. The presence of a thrombus is associated with adverse clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). We reviewed the relationship between ABO blood groups and thrombus burden in patients with STEMI.
We carried out a retrospective study of 396 patients with STEMI who did not have an ABO blood group or thrombus burden. The ABO blood type of all participants was determined. First, angiographic characteristics ranging from a nonexistent thrombus to total occlusion were defined as grades 0, 1, 2, 3, 4, and 5, respectively, using the thrombolysis in myocardial infarction (TIMI) scoring system. After wiring and/or small balloon dilation, the patients were split into two groups according to the TIMI grade: large thrombus burden (LTB) (TIMI 4, n=66) and small thrombus burden (STB) (TIMI 0–3, n=330).
The prevalence rates of ABO blood and Rh types were similar between the groups (P>0.05). Moreover, no relationship was found between thrombus burden and the ABO blood group. The ABO blood group was not an independent predictor of large thrombus burden.
The present study showed that although previous studies have reported a relationship between the ABO blood type and thrombus burden in the STEMI population, we found no such relationship in our study.
Department of Cardiology, Adiyaman Education and Research Hospital, Adiyaman, Turkey
Correspondence to Lutfu Askin, MD, Department of Cardiology, Adiyaman Education and Research Hospital, 2230 Adiyaman, Turkey Tel: +90 531 5203486; fax: +90 416 1015; e-mail: firstname.lastname@example.org
Received June 14, 2017
Received in revised form August 12, 2017
Accepted August 14, 2017