TNNI3 and deep vein thrombosis: Moreover, patients with DVT showed higher levels of cardiac injury markers, that is, creatine kinase myocardial band (CK‐MB, > 25 U/L) (32 [30.8%] vs. 11 [11.0%], p < 0.001) and cardiac troponin I (>26.5 ng/ml) (55 [52.9%] vs. 28 [28.0%], p < 0.001).