pubmed-article:7634469 | pubmed:abstractText | Acute right ventricular (RV) hypertension may result in hemodynamic collapse. The associated reduction in left ventricular (LV) end-diastolic volume is thought to result from reduced RV output (secondary to RV ischemia) and adverse direct ventricular interaction. Aortic constriction improves cardiac function in these circumstances; this has been attributed to a reversal of the RV ischemia caused by an increased coronary perfusion pressure. We hypothesized that altered ventricular interaction, potentially via altered septal mechanics, may also contribute to the beneficial effects of aortic constriction. | lld:pubmed |