Journal
EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
Volume 59, Issue 2, Pages 309-318Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.ejvs.2019.06.027
Keywords
Blood platelets; Platelet activation; Platelet count; Mortality; Myocardial infarction; Myocardial ischaemia
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Objective: A pre-operative marker for identification of patients at risk of peri-operative adverse events and 30 day mortality might be the percentage of young, reticulated platelets (pRP). This study aimed to determine the predictive value of pre-operative pRP on post-operative myocardial injury (PMI) and 30 day mortality, in patients aged >= 60 years undergoing moderate to high risk non-cardiac surgery. Methods: The incidence of PMI (troponin I > 0.06 mu g/L) and 30 day mortality was compared for patients with normal and high pRP (>= 2.82%) obtained from The Utrecht Patient Orientated Database. The predictive pRP value was assessed using logistic regression. A prediction model for PMI or 30 day mortality with known risk factors was compared with a model including increased pRP using the area under the receiving operator characteristics curve (AUROC). Results: In total, 26.5% (607/2289) patients showed pre-operative increased pRP. Increased pRP was associated with more PMI and 30 day mortality compared with normal pRP (36.1% vs. 28.3%, p < .001 and 8.6% vs. 3.6%, p < .001). The median pRP was higher in patients suffering PMI and 30 day mortality compared with not (2.21 [IQR: 1.57-3.11] vs. 2.07 [IQR: 1.52-1.78], p = .002, and 2.63 [IQR: 1.76-4.15] vs. 2.09 [IQR: 1.52-3.98], p < .001). pRP was independently related to PMI (OR: 1.28 [95% CI: 1.04-1.59], p = .02) and 30 day mortality (OR: 2.35 [95% CI: 1.56-3.55], p < .001). Adding increased pRP to the predictive model of PMI or 30 day mortality did not increase the AUROC 0.71 vs. 0.72, and 0.80 vs. 0.81. Conclusion: In patients undergoing major non-cardiac surgery, increased pre-operative pRP is related to 30 day mortality and PMI.
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