Open AccessDoes A Low 6-Minute Walk Distance Predict Elevated Postoperative Troponin?
Author(s) -
Anahat Dhillon,
Andrew Disque,
Christine NguyenBuckley,
Tristan Grogan,
Dana Russell,
H. Albin Gritsch,
Jacques Neelankavil
Publication year - 2018
Publication title -
anesthesia and analgesia/anesthesia and analgesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.404
H-Index - 201
eISSN - 1526-7598
pISSN - 0003-2999
DOI - 10.1213/ane.0000000000002867
Subject(s) - medicine , perioperative , cardiology , logistic regression , troponin , troponin i , receiver operating characteristic , area under the curve , risk stratification , surgery , myocardial infarction
Our study of 100 major vascular and renal transplant patients evaluated the 6-minute walk test (6MWT) as an indicator of perioperative myocardial injury, using troponin as a marker. Using logistic regression and the area under the receiving operator characteristic curve, we compared the 6MWT to the Revised Cardiac Risk Index and metabolic equivalents. Only the 6MWT was associated with elevated postoperative troponins (95% CI, 0.98-0.99). However, the 6MWT area under the receiving operator characteristic curve (0.71 [95% CI, 0.57-0.85]) was not different from the Revised Cardiac Risk Index (P = .23) or metabolic equivalents (P = .14). The 6MWT may have a role in cardiac risk stratification in the perioperative setting.