Effect of a Resuscitation Strategy Targeting Peripheral Perfusion Status vs Serum Lactate Level on 28-Day Mortality
JAMA, 2019 · Multicenter randomized trial (n=424)
Clinical question
Does capillary refill time (CRT)-guided resuscitation improve outcomes compared with lactate-guided resuscitation in septic shock?
What the trial found
CRT-guided resuscitation did not significantly reduce the primary 28-day mortality endpoint but was associated with modestly less organ dysfunction at 72 hours.
Current guideline position
Current sepsis/shock guidance supports CRT as an adjunct to other perfusion measures rather than as a stand-alone replacement for lactate.
Clinical interpretation
Supports CRT as a rapid bedside perfusion marker within a multimodal resuscitation strategy; it should not be presented as proven mortality-superior to lactate-guided care.
Cellular dysoxia, DO2/VO2 physiology, the 4 shock phenotypes, dynamic fluid responsiveness (PLR/PPV) vs fluid tolerance (VExUS), and vasoactive pharmacology.
The subset of sepsis with profound circulatory and cellular/metabolic abnormality — clinically identified by a vasopressor requirement to maintain MAP ≥ 65 mmHg plus lactate > 2 mmol/L despite adequate fluid resuscitation.