Danielle Louis E Villanueva, Marc Denver Tiongson, John Daniel Ramos, Elmer Jasper Llanes
Introduction: Monocyte to High Density Lipoprotein Ratio (MHR) is a new marker that has been associated with major adverse cardiovascular outcomes among STEMI patients. We sought to strengthen the association between MHR and mortality and major adverse cardiovascular events (MACEs) among STEMI patients who underwent primary percutaneous coronary intervention. Methods: Studies were included if they satisfied the following criteria:1) Observational Studies; 2) Adult patients with ST-elevation Myocardial Infarction (STEMI) who underwent primary percutaneous intervention (PCI); and 3) Reported data on mortality and major adverse cardiovascular events. Using MEDLINE, Clinical Key, Science Direct, Scopus, and Cochrane Central Register of Controlled Trials databases, a search for eligible studies was conducted until September 2017. Our primary outcome of interest was all-cause cardiovascular (CV) mortality. We also investigated the association between MHR and major adverse cardiovascular events (MACEs). Results: We identified 3 studies involving 2793 STEMI patients, showing that in STEMI patients who underwent primary PCI, a high admission MHR is associated with a significantly higher in-hospital mortality [RR 4.71, (95% CI 2.36 to 9.39, p<0.00001] and in-hospital MACE [RR 1.90, (95% CI 1.44 to 2.50), p<0.00001]. This significant association was not observed in long term mortality or MACE. Conclusion: A high admission MHR among STEMI patients who underwent primary PCI is associated with a higher in-hospital mortality and MACE. This novel marker can be used as an inexpensive and readily available tool for risk stratification.
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