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

08:00 EDT 26th October 2019 | BioPortfolio

Summary of "Platelet count and mean volume in acute stroke: a systematic review and meta-analysis."

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, = .002] compared with controls (N = 3615). The MPV was significantly higher [SMD = 0.52 (95%
CI:
0.28-0.76), N = 2739, < .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. : 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 ).

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Journal Details

This article was published in the following journal.

Name: Platelets
ISSN: 1369-1635
Pages: 1-9

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Medical and Biotech [MESH] Definitions

The number of PLATELETS per unit volume in a sample of venous BLOOD.

The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat).

The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The amount of blood ejected from a ventricle at each beat is STROKE VOLUME.

The amount of BLOOD pumped out of the HEART per beat not to be confused with cardiac output (volume/time).

Disorders caused by abnormalities in platelet count or function.

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