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Mean platelet volume trend in sepsis: is it a useful parameter?
C Becchi1, M Al Malyan, L P Fabbri
1Department of Medical and Surgical Critical Care, Section of Anaesthesia and Intensive Care, University of Florence, Florence, Italy. chiarabecchi@hotmail.com
Minerva Anestesiologica
|July 28, 2006
Summary
In sepsis patients, a lower mean platelet volume (MPV) indicates a higher risk of death. Monitoring MPV alongside platelet count can assess bone marrow response during sepsis.
Area of Science:
- Hematology
- Critical Care Medicine
- Pathophysiology
Background:
- Sepsis involves uncontrolled inflammation affecting hemostatic mechanisms.
- The relationship between platelet count (PC) and mean platelet volume (MPV) in sepsis remains unclear.
- MPV measurement is a long-standing but underutilized tool in sepsis research.
Purpose of the Study:
- To evaluate the trend and relationship between PC and MPV in sepsis patients.
- To explore the clinical significance of PC and MPV in the course of sepsis.
- To determine if MPV can predict outcomes in sepsis.
Main Methods:
- Prospective study of 70 septic patients.
- Repeated measurements of PC and MPV based on SOFA score changes.
- Statistical analyses included correlation tests, ANOVA, logistic regression, and Wilcoxon test.
Main Results:
- A significant negative correlation (r=-0.34, P<0.0001) was observed between PC and MPV.
- An inverse trend in MPV was noted during sepsis progression.
- MPV < 9.7 fL at recruitment was associated with a threefold increase in death probability (OR=3.04, P<0.05).
Conclusions:
- Platelet behavior (PC and MPV) may reflect bone marrow response and platelet production/activity disturbances in sepsis.
- Concomitant monitoring of PC and MPV trends can serve as a reliable indicator of bone marrow response to sepsis.
- Routine MPV measurement could enhance sepsis assessment and patient management.