Atrioventricular sequential pacing in cardiac amyloidosis: An acute doppler echocardiographic and catheterization hemodynamic study

Background and hypothesis: Congestive heart failure due to cardiac amyloidosis is often refractory to conventional medical management and is associated with a high mortality rate. Recently, dual‐chamber pacemaker implantation has been proposed as a therapeutic option in the management of patients with certain forms of cardiomyopathy with persistent heart failure symptoms, despite optimal medical therapy. The present study evaluates the acute hemodynamic response to atrioventricular (AV) pacing in patients with cardiac amyloidosis who presented with refractory heart failure symptoms.