title: Mean platelet volume and long-term mortality in patients undergoing percutaneous coronary intervention.
abstract: Increased platelet activity is associated with adverse cardiovascular events. The mean platelet volume (MPV) correlates with platelet activity; however, the relation between the MPV and long-term mortality in patients undergoing percutaneous coronary intervention (PCI) is not well established. Furthermore, the role of change in the MPV over time has not been previously evaluated. We evaluated the MPV at baseline, 30 days, 60 days, 90 days, 1 year, 2 years, and 3 years after the procedure in 1,512 patients who underwent PCI. The speed of change in the MPV was estimated using the slope of linear regression. Mortality was determined by query of the Social Security Death Index. During a median of 8.7 years, mortality was 49.3% after PCI. No significant difference was seen in mortality when stratified by MPV quartile (first quartile, 50.1%; second quartile, 47.7%; third quartile, 51.3%; fourth quartile, 48.3%; p = 0.74). For the 839 patients with available data to determine a change in the MPV over time after PCI, mortality was 49.1% and was significantly greater in patients with an increase (52.9%) than in those with a decrease (44.2%) or no change (49.1%) in the MPV over time (p <0.0001). In conclusion, no association was found between the baseline MPV and long-term mortality in patients undergoing PCI. However, increased mortality was found when the MPV increased over time after PCI. Monitoring the MPV after coronary revascularization might play a role in risk stratification.
authors.affiliation: Division of Cardiology, Department of Medicine, New York University School of Medicine and Veterans Affairs New York Harbor Health Care System, New York, New York, USA.
authors.forename: Binita
authors.initials: B
authors.lastname: Shah
authors.forename: Brandon
authors.initials: B
authors.lastname: Oberweis
authors.forename: Lakshmi
authors.initials: L
authors.lastname: Tummala
authors.forename: Nicholas S
authors.initials: NS
authors.lastname: Amoroso
authors.forename: Iryna
authors.initials: I
authors.lastname: Lobach
authors.forename: Steven P
authors.initials: SP
authors.lastname: Sedlis
authors.forename: Eugene
authors.initials: E
authors.lastname: Grossi
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Berger
mesh_terms: D000368:Aged; D001792:Blood Platelets / Q000502:physiology*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood / Q000401:mortality* / Q000601:surgery; D062645:Percutaneous Coronary Intervention; D010976:Platelet Count; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate / Q000639:trends; D013997:Time Factors; D014481:United States / Q000453:epidemiology