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Journal Article
Observational Study
Platelet distribution width predicts left ventricular dysfunction in patients with acute coronary syndromes treated with percutaneous coronary intervention.
Kardiologia Polska 2017
BACKGROUND: The role of platelets in the pathophysiology of acute coronary syndromes (ACS) is undeniable, but precise relationships between platelet activity and treatment outcomes are a matter of continuant investigation. Among platelet indices, mean platelet volume (MPV) has proven to be a valuable predicting factor in cardiac patients. However, platelet distribution width (PDW) is reported to be a more specific marker of platelet reactivity. Thus, application of PDW in risk stratification of ACS treatment is an up-to-date subject of research. PDW values in the assessment of left ventricular (LV) function have not been previously studied.
AIM: The aim of the study was to evaluate whether admission PDW can predict LV systolic function in patients with ACS treated with stent implantation.
METHODS: On-admission PDW was measured in 278 consecutive patients with diagnosis of ACS, who underwent stent(s) implantation. Echocardiogram with LV ejection fraction (LVEF) estimation was performed within 24 h of percutaneous coronary intervention. Additionally, patients were under one-year follow-up, and one-year all-cause mortality was assessed.
RESULTS: According to receiver-operating characteristics (ROC) analysis, a PDW value greater than 12.8 fL could predict LVEF ≤ 35% with sensitivity of 81% and specificity of 39% (AUC 0.614; p = 0.0177). Only a trend was noted in ROC for PDW and one-year mortality (AUC 0.608; p = 0.0815). Multivariate logistic regression analysis has shown that the PDW parameter correlates independently with both systolic heart failure with LVEF ≤ 35% (PDW cut-off: 12.8 fL, OR 2.8107, CI 1.1401-6.9293, p = 0.0248) and one-year mortality (PDW cut-off: 16 fL, OR 2.6750, CI 1.0190-7.0225, p = 0.0457).
CONCLUSIONS: Admission PDW may serve as a simple and widely available predictor of impaired LV function in patients with ACS. Association between PDW and mortality needs to be confirmed in larger studies.
AIM: The aim of the study was to evaluate whether admission PDW can predict LV systolic function in patients with ACS treated with stent implantation.
METHODS: On-admission PDW was measured in 278 consecutive patients with diagnosis of ACS, who underwent stent(s) implantation. Echocardiogram with LV ejection fraction (LVEF) estimation was performed within 24 h of percutaneous coronary intervention. Additionally, patients were under one-year follow-up, and one-year all-cause mortality was assessed.
RESULTS: According to receiver-operating characteristics (ROC) analysis, a PDW value greater than 12.8 fL could predict LVEF ≤ 35% with sensitivity of 81% and specificity of 39% (AUC 0.614; p = 0.0177). Only a trend was noted in ROC for PDW and one-year mortality (AUC 0.608; p = 0.0815). Multivariate logistic regression analysis has shown that the PDW parameter correlates independently with both systolic heart failure with LVEF ≤ 35% (PDW cut-off: 12.8 fL, OR 2.8107, CI 1.1401-6.9293, p = 0.0248) and one-year mortality (PDW cut-off: 16 fL, OR 2.6750, CI 1.0190-7.0225, p = 0.0457).
CONCLUSIONS: Admission PDW may serve as a simple and widely available predictor of impaired LV function in patients with ACS. Association between PDW and mortality needs to be confirmed in larger studies.
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