Related Experiment Video
Updated: Aug 16, 2026

Physiological Preparation of Hair Cells from the Sacculus of the American Bullfrog (Rana catesbeiana)
Published on: March 17, 2017
His bundle block
Gaurav Jain1, Christopher J Hudson, Laszlo Littmann
1Department of Internal Medicine, Carolinas Medical Center, Charlotte, North Carolina 28232, USA.
Abstract:
In patients with narrow QRS complexes, atrioventricular block is usually localized to the AV node, and it is frequently benign. The more distal intra-His bundle blocks are rare, potentially malignant, and difficult to recognize. This case report illustrates how His bundle block can be diagnosed by analyzing the effects of certain maneuvers on the heart rate. Paradoxically, exercise and atropine tend to provoke His bundle block, whereas carotid massage may release it. Implantation of a permanent pacemaker is generally indicated.
More Related Videos
12:45Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
07:06Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
Published on: March 21, 2025
Related Concept Videos
Brick Sizes
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
Bricks
Soft mud bricks are shaped in molds with high moisture content and can be...
Elements of Block Diagrams
A block diagram typically includes essential elements such as comparators, blocks, and feedback loops. Each of these elements...
Block Diagram Reduction
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
Brick Cutting Techniques
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
Special types of cut...
Buffers