Work

Transient left bundle branch block due to massive increase of His bundle pacing threshold associated with acute heart failure in a patient with complete heart block

Year: 2018

Type: article

Abstract: Key Teaching Points•Transient left bundle branch block can be associated with high filling left ventricular pressure in patients with acute heart failure. The postulated mechanism is mechanical injury of the left bundle branch. The main His bundle may be vulnerable to mechanical stretch owing to its fibrous surroundings.•High-output His bundle pacing could correct left bundle branch block associated with acute heart failure or cardiomyopathy. Recruitment of the left bundle branch block might lead to prompt myocardial recovery.•His bundle pacing is feasible and effective for infranodal heart block, although the procedure may be challenging. •Transient left bundle branch block can be associated with high filling left ventricular pressure in patients with acute heart failure. The postulated mechanism is mechanical injury of the left bundle branch. The main His bundle may be vulnerable to mechanical stretch owing to its fibrous surroundings.•High-output His bundle pacing could correct left bundle branch block associated with acute heart failure or cardiomyopathy. Recruitment of the left bundle branch block might lead to prompt myocardial recovery.•His bundle pacing is feasible and effective for infranodal heart block, although the procedure may be challenging.

Source: HeartRhythm Case Reports

DOI: 10.1016/j.hrcr.2018.11.017

Authors: Yoji Iida, Tomoaki Izawa, Chikara Kobari, Toru Yatsuhashi, Nobuyuki Makishima

Institution: Kobari General Hospital

Language: English

Topic: Cardiac pacing and defibrillation studies

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,100