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Published on: November 19, 2019
Predictive Value of Mean Platelet Volume in Saphenous Vein Graft Disease
1Department of Cardiovascular Surgery, Ataturk University, Faculty of Medicine, Erzurum, Turkey.
Insights
Mean platelet volume (MPV) may predict saphenous vein graft disease and early death after coronary artery bypass graft (CABG) surgery. Higher MPV levels were associated with increased risk in patients undergoing CABG.
Area of Science:
- Cardiology
- Hematology
- Surgical Outcomes
Background:
- Coronary artery bypass graft (CABG) surgery is a critical intervention for coronary artery disease.
- Assessing risk factors for mortality and graft patency post-CABG is crucial for patient management.
- Platelet indices, including mean platelet volume (MPV), platelet distribution width (PDW), and platelet count, are increasingly recognized for their role in cardiovascular health.
Purpose of the Study:
- To investigate the potential of MPV, PDW, and platelet count as predictors of mortality after CABG surgery.
- To evaluate these platelet parameters as indicators of saphenous vein graft disease (SVGD) and patency post-CABG.
Main Methods:
- Retrospective review of 128 patients undergoing coronary angiography after CABG.
- Patients were categorized into early death, no SVGD, and SVGD groups.
- MPV, PDW, and platelet count were analyzed at various time points pre- and post-surgery.
Main Results:
- Significantly higher MPV in patients with SVGD compared to those without (9.7±1.8 fl vs. 8.2±0.9 fl, P<0.05).
- Elevated postoperative MPV ratios observed in the SVGD group (9.6±1.8 fl vs. 7.8±0.9 fl, P<0.05).
- Higher MPV values correlated with early mortality (9.4±1.9 fl vs. 8.0±1.0 fl, P<0.05); MPV > 7.9 predicted early death with 80% sensitivity.
Conclusions:
- MPV demonstrates potential as a predictive marker for SVGD.
- MPV may serve as a valuable indicator for predicting mortality risk following CABG surgery.
- Platelet count and PDW did not show significant differences between early death and surviving groups.
Objective:
To determine whether mean platelet volume (MPV), platelet distribution width (PDW), and platelet count could be used as determinants of mortality following coronary artery bypass graft (CABG) surgery and patency of saphenous vein grafts (SVG).
Methods:
The records of 128 patients who underwent emergency or elective coronary angiography after CABG surgery, and who died at an early stage were retrospectively reviewed. Patients were divided into three groups as early death, no SVG disease (SVGD), and SVGD group. MPV, PDW, and platelet count were evaluated at different times.
Results:
MPV was significantly higher in the stenotic group than in the nonstenotic group (9.7±1.8 fl and 8.2±0.9 fl, P<0.05). The postoperative MPV ratio was found to be higher in the stenotic group when compared to the preoperative period (9.6±1.8 fl and 7.8±0.9 fl, P<0.05). MPV values were also found to be higher in patients who died during the early stage than in surviving patients (9.4±1.9 fl and 8.0±1.0 fl, P<0.05). There was no statistically significant difference regarding platelet count and PDW ratios between the early deaths group and surviving patients. An MPV value higher than 10.6 predicted SVGD with 85% sensitivity and 45% specificity; and an MPV higher than 7.9 predicted early death with 80% sensitivity and 68% specificity were observed.
Conclusion:
MPV may be a useful indicator for the prediction of SVGD and mortality following CABG surgery.
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