D-dimer/high-sensitivity troponin I ratio in the diagnosis of acute pulmonary embolism and/or non-ST-elevation myocardial infarction.

This study aimed to determine whether the D-dimer/high-sensitivity troponin I (hs-TnI) ratio is useful in the differential diagnosis of acute pulmonary embolism (APE) and/or non-ST-elevation myocardial infarction (NSTEMI) in patients who presented to the emergency department with chest pain. The study included 219 patients with APE and 385 patients with NSTEMI over the age of 18 who presented to the emergency department with chest pain and were diagnosed with either APE or NSTEMI. Using statistical analysis, D-dimer, hs-TnI, creatine kinase myocardial band (CK-MB) levels, D-dimer/CK-MB, and D-dimer/hs-TnI ratios were compared in patients with APE and NSTEMI. The D-dimer/hs-TnI ratio in patients with APE was found to be considerably greater than in patients with NSTEMI. Similarly, the D-dimer/CK-MB levels in patients with APE were significantly higher than in individuals with NSTEMI. Patients with APE had higher D-dimer levels, while those with NSTEMI had higher hs-TnI levels. The D-dimer/hs-TnI ratio can be useful for emergency clinicians because it is affordable, quickly calculated, and easily accessible.