03478nas a2200457   4500000000100000008004100001100001500042700001800057700001600075700001700091700002000108700001800128700001900146700002000165700001800185700002200203700001700225700001700242700002000259700002100279700001500300700001800315700001800333700001800351700002100369700001800390700002400408700002300432700002100455700002300476700001900499700001500518700002000533700001900553700001700572700002300589700001600612245012700628520225100755022001403006       2017                            d1 aChow Clara1 aBiccard Bruce1 aScott David1 aChan Matthew1 aArchbold Andrew1 aWang Chew-Yin1 aSigamani Alben1 aUrrútia Gerard1 aCruz Patricia1 aSrinathan Sadeesh1 aSzalay David1 aHarlock John1 aTittley Jacques1 aRapanos Theodore1 aElias Fadi1 aJacka Michael1 aMalaga German1 aAbraham Valsa1 aBerwanger Otavio1 aMontes Félix1 aHeels-Ansdell Diane1 aHutcherson Matthew1 aPolanczyk Carisi1 aSzczeklik Wojciech1 aAckland Gareth1 aDubois Luc1 aSapsford Robert1 aWilliams Colin1 aCortés Olga1 aLe Mananch Yannick1 aDevereaux P00aMyocardial Injury After Noncardiac Surgery (MINS) in Vascular Surgical Patients: A Prospective Observational Cohort Study.3 a<p>
<b>OBJECTIVE: </b>To determine the prognostic relevance, clinical characteristics, and 30-day outcomes associated with myocardial injury after noncardiac surgery (MINS) in vascular surgical patients.
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<b>BACKGROUND: </b>MINS has been independently associated with 30-day mortality after noncardiac surgery. The characteristics and prognostic importance of MINS in vascular surgery patients are poorly described.
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<b>METHODS: </b>This was an international prospective cohort study of 15,102 noncardiac surgery patients 45 years or older, of whom 502 patients underwent vascular surgery. All patients had fourth-generation plasma troponin T (TnT) concentrations measured during the first 3 postoperative days. MINS was defined as a TnT of 0.03 ng/mL of higher secondary to ischemia. The objectives of the present study were to determine (i) if MINS is prognostically important in vascular surgical patients, (ii) the clinical characteristics of vascular surgery patients with and without MINS, (iii) the 30-day outcomes for vascular surgery patients with and without MINS, and (iv) the proportion of MINS that probably would have gone undetected without routine troponin monitoring.
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<b>RESULTS: </b>The incidence of MINS in the vascular surgery patients was 19.1% (95% confidence interval (CI), 15.7%-22.6%). 30-day all-cause mortality in the vascular cohort was 12.5% (95% CI 7.3%-20.6%) in patients with MINS compared with 1.5% (95% CI 0.7%-3.2%) in patients without MINS (P &lt; 0.001). MINS was independently associated with 30-day mortality in vascular patients (odds ratio, 9.48; 95% CI, 3.46-25.96). The 30-day mortality was similar in MINS patients with (15.0%; 95% CI, 7.1-29.1) and without an ischemic feature (12.2%; 95% CI, 5.3-25.5, P = 0.76). The proportion of vascular surgery patients who suffered MINS without overt evidence of myocardial ischemia was 74.1% (95% CI, 63.6-82.4).
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<b>CONCLUSIONS: </b>Approximately 1 in 5 patients experienced MINS after vascular surgery. MINS was independently associated with 30-day mortality. The majority of patients with MINS were asymptomatic and would have gone undetected without routine postoperative troponin measurement.
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