Platelet count and mean volume in acute stroke: a systematic review and meta-analysis

Abstract

Changes of mean platelet volume (MPV) and platelet count (PC) could be a marker or a predictor of acute stroke (AS). We conducted a systematic review and meta-analysis of the published literature on the reporting of MPV and PC in AS. Studies were included in accordance with Patient Population or Problem, Intervention, Comparison, Outcomes, and Setting framework. The PRISMA strategy was used to report findings. Risk of bias was assessed with the Newcastle-Ottawa Scale. We included 34 eligible articles retrieved from the literature. PC was significantly lower in AS patients [standardized mean difference (SMD) = − 0.30, (95% CI: − 0.49 to − 0.11), N = 2492, P = .002] compared with controls (N = 3615). The MPV was significantly higher [SMD = 0.52 (95% CI: 0.28-0.76), N = 2739, P < .001] compared with controls (N = 3810). Subgroup analyses showed significantly lower PC in both ischemic stroke (Difference SMD = −0.18, 95% CI: −0.35-0.01) and hemorrhagic stroke (−0.94, −1.62 to −0.25), but only samples by citrate anticoagulant showed significantly lower result for patients compared to controls (−0.36, −0.68 to −0.04). Ischemic stroke patients had higher MPV (0.57, 0.31-0.83), and samples by Ethylenediaminetetraacetic acid (EDTA) anticoagulant showed significantly higher result for patients compared to controls (0.86, 0.55--1.17). PC and MPV appeared to be significantly different between patients with AS and control populations. MPV was significantly higher in ischemic stroke and PC was significantly lower in both ischemic and hemorrhagic strokes. These characteristics might be related to AS and associated with it. It is advisable to pay attention to elapsed time between phlebotomy and hematology analysis, anticoagulant and hemocytometer types in AS. Systematic review registration: This meta-analysis is registered on the International Prospective Register of Systematic Reviews (PROSPERO) under registration number CRD42017067864 (https:// www.crd.york.ac.uk/prospero/display_record.php?RecordID=67864).

Selected hematological biomarkers to predict acute mortality in emergency department patients: Recent Polish hospital statistics

“…coronary artery disease or stroke), it does not surprise that there are relations between MPV and acute one-month mortality. In a recent meta-analysis by [27], the author describes the MPV being significantly higher in patients with stroke. Similarly, two other groups describe the MPV correlating with the prevalence and the prognosis of coronary artery disease [28,29].…”

Selected Hematological Biomarkers to Predict Acute Mortality in Emergency Department Patients. Recent Polish Hospital Statistics

“…As these are frequently cardiovascular states (i.e., coronary artery disease or stroke), it does not surprise that there are relations between MPV and acute one-month mortality. In a recent meta-analysis by [27], the author describes the MPV being significantly higher in patients with stroke. Similarly, two other groups describe the MPV correlating with the prevalence and the prognosis of coronary artery disease [28,29].…”

Mean Platelet Volume as a Marker of Vasculogenic Erectile Dysfunction and Future Cardiovascular Risk

“…Indeed, a recent meta-analysis of 27 studies that explored MPV in stroke showed significantly higher MPV values in patients with stroke than in healthy controls. Besides, this increase persists even several months after the acute event [20]. In another study, including 3134 patients with a history of cerebrovascular disease, the authors showed an 11% increase in the relative risk of developing an acute stroke for each 1-fl of MPV increase [21].…”