antihypertensive, agent; cytokine; endogenous, compound; guanylate, cyclase; hydroxocobalamin; inducible, nitric, oxide, synthase; methylene, blue; oxide; scavenger; adult; artificial, ventilation; blood, pressure; cardiopulmonary, bypass; case, report; clinical, article; conference, abstract; coronavirus, disease, 2019; drug, megadose; extracorporeal, oxygenation; female; fluid, resuscitation; graft, recipient; human; hypoxemic, respiratory, failure; multiple, drug, dose; salvage, therapy; surgery; treatment, failure; vasoplegia