TY - JOUR
T1 - Lactate Clearance as a Surrogate for Mortality in Cardiogenic Shock
T2 - Insights From the DOREMI Trial
AU - Marbach, Jeffrey A.
AU - Di Santo, Pietro
AU - Kapur, Navin K.
AU - Thayer, Katherine L.
AU - Simard, Trevor
AU - Jung, Richard G.
AU - Parlow, Simon
AU - Abdel-Razek, Omar
AU - Fernando, Shannon M.
AU - Labinaz, Marino
AU - Froeschl, Michael
AU - Mathew, Rebecca
AU - Hibbert, Benjamin
N1 - Publisher Copyright:
© 2022 The Authors.
PY - 2022/3/15
Y1 - 2022/3/15
N2 - Background Recent studies have shown improved outcomes in cardiogenic shock through protocols directed toward early identification and initiation of mechanical circulatory support. However, objective therapeutic targets—based on clinical and/or laboratory data—to guide real‐time clinical decision making are lacking. Lactate clearance has been suggested as a potential treatment target because of its independent association with mortality. Methods and Results In a post hoc analysis of the DOREMI (Dobutamine Compared to Milrinone in the Treatment of Cardiogenic Shock) trial—a randomized, double‐blind, controlled trial comparing milrinone to dobutamine in the treatment of cardiogenic shock—we used prospectively collected lactate data to evaluate lactate clearance as a surrogate marker for in‐hospital mortality. In total, 82 (57.7%) patients survived to hospital discharge (survivors). In multivariate logistic regression analysis, complete lactate clearance, percentage lactate clearance, and percentage lactate clearance per hour were independently associated with survival beginning as early as 8 hours after enrollment. Complete lactate clearance was the strongest predictor of survival at all time points, with odds ratios ranging between 2.46 (95% CI, 1.09-5.55; P=0.03) at 8 hours to 5.44 (95% CI, 2.14-13.8; P<0.01) at 24 hours. Conclusions Complete lactate clearance is a strong and independent predictor of in‐hospital survival in patients with cardiogenic shock. Together with previously published data, these results further support the validity of lactate clearance as an appropriate surrogate for mortality and as a potential therapeutic target in future cardiogenic shock trials.
AB - Background Recent studies have shown improved outcomes in cardiogenic shock through protocols directed toward early identification and initiation of mechanical circulatory support. However, objective therapeutic targets—based on clinical and/or laboratory data—to guide real‐time clinical decision making are lacking. Lactate clearance has been suggested as a potential treatment target because of its independent association with mortality. Methods and Results In a post hoc analysis of the DOREMI (Dobutamine Compared to Milrinone in the Treatment of Cardiogenic Shock) trial—a randomized, double‐blind, controlled trial comparing milrinone to dobutamine in the treatment of cardiogenic shock—we used prospectively collected lactate data to evaluate lactate clearance as a surrogate marker for in‐hospital mortality. In total, 82 (57.7%) patients survived to hospital discharge (survivors). In multivariate logistic regression analysis, complete lactate clearance, percentage lactate clearance, and percentage lactate clearance per hour were independently associated with survival beginning as early as 8 hours after enrollment. Complete lactate clearance was the strongest predictor of survival at all time points, with odds ratios ranging between 2.46 (95% CI, 1.09-5.55; P=0.03) at 8 hours to 5.44 (95% CI, 2.14-13.8; P<0.01) at 24 hours. Conclusions Complete lactate clearance is a strong and independent predictor of in‐hospital survival in patients with cardiogenic shock. Together with previously published data, these results further support the validity of lactate clearance as an appropriate surrogate for mortality and as a potential therapeutic target in future cardiogenic shock trials.
KW - Cardiogenic shock
KW - Lactate clearance
KW - Mortality
KW - Surrogate end point
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U2 - 10.1161/JAHA.121.023322
DO - 10.1161/JAHA.121.023322
M3 - Article
C2 - 35261289
AN - SCOPUS:85126830748
SN - 2047-9980
VL - 11
JO - Journal of the American Heart Association
JF - Journal of the American Heart Association
IS - 6
M1 - e023322
ER -