“…Most RHF patients who die in ICU experience sequential multiple organ failure, so increasing lactate trend is a helpful marker of worsening organ hypoperfusion in RHF and decompensated pulmonary hypertension 7,8 . Notably, our findings diverge from those of Deng et al 1 in that we did not detect a correlation between lactate levels at admission and mortality among RHF patients. Nevertheless, our study substantiates the notion that monitoring the lactate trend represents a valuable tool in comprehending the course of acute RHF.…”