Conduction latency in left bundle branch pacing in heart failure patient
Marek Prech1, Agata Kaczmarzyk-Radka1, Tomasz Gwizdek1
1Department of Cardiology, District Hospital, Leszno, Kiepury 45, 64-100 Leszno, Poland.
Journal of Electrocardiology
|May 11, 2024
Summary
Left bundle branch pacing (LBBP) successfully achieved cardiac resynchronization in a heart failure patient. Observed latency in left ventricular activation suggests prolonged conduction through the His-Purkinje system, offering new insights into pacing parameters.
Area of Science:
- Cardiology
- Electrophysiology
- Cardiac Pacing
Background:
- Left bundle branch pacing (LBBP) is an emerging technique for cardiac resynchronization therapy.
- Established electrocardiographic criteria for successful LBBP primarily focus on patients with narrow QRS complexes.
- Accurate assessment of conduction system capture is crucial for optimizing pacing outcomes.
Related Concept Videos
Conduction System of the Heart
982
The cardiac conduction system produces and transmits electrical impulses that prompt myocardial contraction, ensuring efficient heart function. This intricate system ensures that the heart beats in a coordinated and efficient manner, beginning with the atria and then the ventricles. The conduction system optimizes cardiac output by maintaining this precise sequence, which is crucial for adequate blood circulation.
This system relies on the unique properties of nodal and Purkinje cells:...
This system relies on the unique properties of nodal and Purkinje cells:...
982
Heart Failure Drugs: β-Blockers
337
β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
337
Cardiac Action Potential
1.3K
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
1.3K


