ORIGINAL ARTICLE   

Minerva Cardioangiologica 2019 April;67(2):102-8

DOI: 10.23736/S0026-4725.18.04836-3

Copyright © 2018 EDIZIONI MINERVA MEDICA

language: English

The prognostic value of mean platelet volume to platelet count ratio in older patients with non-ST elevation acute coronary syndrome receiving primary percutaneous coronary intervention: a retrospective study

Xiaoqiang SUN ^{1, 2}, Heng LI ², Yankun ZHANG ², Feng HE ², Chengzhi LU ¹ ✉

¹ Cardiovascular Department, The First Center Clinic College of Tianjin Medical University, Tianjin, China; ² Cardiovascular Department, Tianjin Fourth Central Hospital, Tianjin, China

BACKGROUND: The aim of this study was to investigate the value of the mean platelet volume to platelet count (MPV/P) ratio for predicting in-hospital and long-term cardiac mortality in older non-ST elevation-acute coronary syndrome (NSTE-ACS) patients after primary percutaneous coronary intervention (PCI).
METHODS: We retrospectively reviewed 452 older NSTE-ACS patients who received primary PCI. The patients were divided into two groups based on MPV/P ratios: high MPV/P group (N.=150) defined as a value in the third tertile (>0.056628) and low MPV/P group (N.=302) in the lower two tertiles (≤0.056628). Clinical outcomes included non-fatal reinfarction, heart failure, and cardiac mortality.
RESULTS: Multivariate analyses showed that high MPV/P and MPV values were independent predictors of cardiac mortality. The in-hospital cardiac mortality of the high MPV/P group was higher than the low MPV/P group (1.3% vs. 14.7%, P<0.001). The rates of heart failure and cardiac mortality in one year were significantly higher in the high MPV/P group compared to the low MPV/P group (P<0.05). The cut-off value of MPV/P for predicting cardiac death was 0.067107, with a sensitivity of 0.707 and a specificity of 0.868. MPV/P was superior to MPV (z=9.235, P<0.001) for predicting cardiac mortality.
CONCLUSIONS: High MPV/P and MPV values are independent predictors of cardiac mortality in older patients with NSTE-ACS receive primary PCI. Moreover, MPV/P is better than MPV for predicting cardiac mortality.

KEY WORDS: Mean platelet volume; Acute coronary syndrome; Percutaneous coronary intervention; Mortality