Ioannis Bellos1, Georgia Fitrou1, Vasilios Pergialiotis2, Nikolaos Papantoniou1, Georgios Daskalakis3. 1. Third Department of Obstetrics and Gynecology, Attikon University Hospital, National and Kapodistrian University of Athens, Greece. 2. Third Department of Obstetrics and Gynecology, Attikon University Hospital, National and Kapodistrian University of Athens, Greece. Electronic address: pergialiotis@yahoo.com. 3. First Department of Obstetrics and Gynecology, Alexandra Hospital, National and Kapodistrian University of Athens, Greece.
Abstract
OBJECTIVE: Mean platelet volume (MPV) has been explored in several observational studies in the field of preeclampsia and current evidence seem to be conflicting. The purpose of the present meta-analysis is to evaluate the reported MPV differences in patients that develop preeclampsia and to compare them to those of otherwise healthy women. DESIGN AND METHODS: We searched the international literature using the Medline (1966-2018), Scopus (2004-2018), EMBASE (1947-2018) and Clinicaltrials.gov (2008-2018) databases. Statistical meta-analysis was performed using the RevMan 5.3 software. RESULTS: The meta-analysis was based on outcomes reported from 50 studies that included 14,614 women. MPV was significantly higher in preeclamptic than healthy pregnant women (7905 women, MD: 1.04 fl, 95% CI [0.76, 1.32]). The mean difference was less evident among women with mild preeclampsia (6604 women, MD: 0.65 fl, 95% CI [0.19, 1.11]), compared to the severe ones (6119 women, MD: 1.28 fl, 95% CI [0.75, 1.80]). The results of the univariate meta-regression analysis showed that region, sample size, time to analysis, anticoagulant, platelet count and NOS score did not affect the outcomes of the meta-analysis. CONCLUSIONS: The findings of our meta-analysis suggest that mean platelet volume represents a promising biomarker for the detection and follow-up of patients that develop preeclampsia. However, given that the available evidence is drawn from case-control studies, future cohorts are needed in this field to accurately determine optimal timing and cut-off values that may be used in the clinical setting.
OBJECTIVE: Mean platelet volume (MPV) has been explored in several observational studies in the field of preeclampsia and current evidence seem to be conflicting. The purpose of the present meta-analysis is to evaluate the reported MPV differences in patients that develop preeclampsia and to compare them to those of otherwise healthy women. DESIGN AND METHODS: We searched the international literature using the Medline (1966-2018), Scopus (2004-2018), EMBASE (1947-2018) and Clinicaltrials.gov (2008-2018) databases. Statistical meta-analysis was performed using the RevMan 5.3 software. RESULTS: The meta-analysis was based on outcomes reported from 50 studies that included 14,614 women. MPV was significantly higher in preeclamptic than healthy pregnant women (7905 women, MD: 1.04 fl, 95% CI [0.76, 1.32]). The mean difference was less evident among women with mild preeclampsia (6604 women, MD: 0.65 fl, 95% CI [0.19, 1.11]), compared to the severe ones (6119 women, MD: 1.28 fl, 95% CI [0.75, 1.80]). The results of the univariate meta-regression analysis showed that region, sample size, time to analysis, anticoagulant, platelet count and NOS score did not affect the outcomes of the meta-analysis. CONCLUSIONS: The findings of our meta-analysis suggest that mean platelet volume represents a promising biomarker for the detection and follow-up of patients that develop preeclampsia. However, given that the available evidence is drawn from case-control studies, future cohorts are needed in this field to accurately determine optimal timing and cut-off values that may be used in the clinical setting.
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