Electrocardiographic features and need for pacemaker in cardiac amyloidosis: Analysis of 58 cases.

Aim: Amyloidosis is a disease in which amyloid fibrils can be deposited in different cardiac structures, and several electrocardiographic abnormalities can be produced by this phenomenon. The objective of this study was to describe the most common basal electrocardiographic alterations in patients diagnosed with cardiac amyloidosis (CA) and to determine if these abnormalities have an impact on the need of pacemaker.

Methods: This retrospective study included patients who had an established diagnosis of CA [light-chain cardiac amyloidosis (LA-CA) or transthyretin cardiac amyloidosis (TTR-CA)] between January 2013 and March 2021.

[Characterization of hyper-responder patients to cardiac resynchronization therapy].

Background And Objective: To compare clinical and echocardiographic characteristics of the hyper-responders to cardiac resynchronization therapy (CRT) with the rest of patients.

Patients And Method: We included 80 consecutive patients treated with CRT. The follow up was 19 (14) months.