Cyclooxygenase-2 inhibition and thromboxane A (2) receptor antagonism attenuate hypoxic pulmonary vasoconstriction in a porcine model.
AIM: Hypoxic pulmonary vasoconstriction (HPV) causes pulmonary hypertension that may lead to right heart failure. We hypothesized that the COX-2 inhibitor nimesulide and the thromboxane A (2) receptor antagonist daltroban would attenuate HPV. METHODS: Haemodynamic measurements and blood sampling were performed in 18 anaesthetized, mechanically ventilated pigs, with mean ± SEM weights of 31.3 ±