Involved Culprit Arteries and Proportion of Spontaneous Arterial Recanalization in Acute Lateral Wall Myocardial Infarction Adult Patients in Pakistan

Abstract

Objectives: To elucidate the involved culprit arteries and proportion of spontaneous arterial recanalization (SAR) in acute lateral wall myocardial infarction (ALWMI) patients in Pakistan. Methodology: This cross-sectional study was conducted in the outpatient department (OPD) of a tertiary care cardiac center from February 2019 to July 2019. Patients meeting selection criteria of ALWMI were included. Key angiographic outcomes were recorded for each patient. Proportion of SAR in terms of involved culprit arteries was assessed. Results: One hundred fifty two (152) patients were included, out of which 81% (124) were males. Mean age was 54.73 ± 11.03 years. Most (46.4%) of the study patients presented with single vessel disease. Overall, 89 (59%) patients showed SAR with settled ECG changes. Of them 73 (66%), 8 (33%) and 8 (47%) patients had diagonal artery involvement, 1st obtuse marginal artery involvement and ramus intermedius artery involvement respectively. Statistical significance (p=0.006) is observed for relationship of involved culprit arteries and SAR in ALWMI patients. Conclusion: This cross-sectional study reports the proportion of arterial recanalization in terms of involved culprit arteries. Diagonal was the culprit artery (~ 73%) in most patients presented with ALWMI. SAR proportion is also highest in patients with diagonal artery involvement. This tendency of SAR was more in single vessel diseases patients compared to double vessel and triple vessel diseases patients.