Association Between Mean Platelet Volume and Hemorrhagic Transformation in Acute Ischemic Stroke Patients

Author(s): Changyi Wang, Lu Wang, Linghui Deng, Shi Qiu, Shihong Zhang, Ming Liu, Bo Wu*

Journal Name: Current Neurovascular Research

Volume 17 , Issue 1 , 2020

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Background: Hemorrhagic transformation (HT) is a frequent complication of acute ischemic stroke (AIS). Mean platelet volume (MPV) is a marker of platelet function. The relationship between MPV and HT remains unclear.

Methods: From January 1st, 2012 to December 31st 2016, we consecutively enrolled AIS patients admitted to the Department of Neurology of West China Hospital. MPV was measured on admission. HT was diagnosed by brain imaging and classified into hemorrhagic infarct (HI) and parenchymal hematoma (PH). Moreover, subjects were divided into tertiles according to MPV levels. Confounders were identified by univariate analysis and multivariate logistic regression was performed to explore the association between MPV and HT as well as HT subtypes. Also, a generalized additive model was used to investigate whether a non-linear association existed between MPV and HT.

Results: A total of 783 AIS patients were included. 63 patients (8.0%) developed HT: 34 (4.3%) HI and 29 (3.7%) PH. It was observed that MPV positively correlated with HT. After adjustment for confounders, patients in the highest MPV tertile had a significantly increased risk of HT compared to patients in the lowest tertile (odds ratio 2.3, 95% confidence interval 1.0-5.4, P=0.04). The risk of HT increased step-wise across MPV tertiles (P for trend=0.04). MPV tertiles significantly correlated with HI rather than PH. The generalized additive model demonstrated a nonlinear association between MPV and HT (P=0.02).

Conclusion: The risk of HT increased with increasing MPV level in a dose-dependent manner. Patients with elevated MPV levels were more likely to develop HI rather than PH.

Keywords: Mean platelet volume, hemorrhagic transformation, acute ischemic stroke, association, hemorrhagic infarct, parenchymal hematoma.

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Year: 2020
Page: [3 - 10]
Pages: 8
DOI: 10.2174/1567202617666191226115518
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