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Purpose

It has been known that inflammatory mechanisms play an important role in the coronary artery disease. Our aim in this study was to investigate the relationship between the neutrophil/lymphocyte (N/L) ratio and coronary flow velocity after primary percutaneous coronary intervention (PCI) in patients presenting with ST-segment elevation myocardial infarction (STEMI).

Methods

Two hundred and ten patients who had undergone primary PCI were included. The coronary flow velocities were evaluated using the recorded PCI procedures by Thrombolysis in Myocardial Infarction (TIMI) flow grades and corrected TIMI frame counts (cTFC) values. A value of> 40 for the final cTFC was accepted as an index of insufficient coronary blood flow. The white blood cell subtypes and counts were determined in the blood samples obtained at the clinics.

Results

In 165 (78%) of the investigated patients, reperfusion was found to …