Effects of repeated increments in right atrial pressure on secretion of atrial natriuretic factor.

I t has been demonstrated that an acute increase in right atria1 (RA) pressure and paroxysmal supraventricular tachycardias induce the release of atria1 natriuretic factor (ANF).*-4 In a previous study that allowed a selective or combined increase in heart rate and RA pressure by intracardiac pacing, we showed that acute increment in RA pressure is the… (More)