We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Second-Degree Heart Block?

Laura M. Sands
By
Updated Mar 03, 2024
Our promise to you
The Health Board is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At The Health Board, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Second-degree heart block occurs when the electrical signals, which are usually used in communication between the ventricles and the atria, slow down or are halted. When this occurs, the ventricles do not receive messages that instruct them to pump blood to the rest of the body. Second-degree heart block includes two classifications, type 1 and type 2. Depending on which diagnosis is given, it can be a very serious health concern and can even be fatal.

Ventricles are located in both the brain and the heart. The heart’s ventricles are responsible for pumping blood to the arteries. The atria, also known as atrium, are where blood is held before it is sent to the ventricles. Communication and proper functioning between the ventricles and the atria are crucial to proper blood distribution and flow.

Also known as second-degree atrioventricular block, or second-degree AV block, this type of heart blockage is characterized in two different ways. The first, known as type 1 second-degree heart block, is a progressive type of blockage. It begins with the slowing of signals between the atria and ventricles with each heartbeat until the heart eventually skips a beat. A diagnosis of type 1 second-degree AV block does not always lead to a type 2 blockage. Although this type is not as severe or life-threatening as a type 2 heart blockage, it is still considered to be a serious condition.

Type 2 second-degree heart block occurs when some of the signals are completely missed between the atria and ventricles. In a type 2 second-degree heart blockage, some signals may still transmit as usual, while others are completely missed. Pacemakers, which may work to help regulate signals, are commonly used in an attempt to correct this condition.

Of the two types, type 1 second-degree heart block usually does not progress to a more serious condition. Type 2 heart block, on the other hand, is very serious and often progresses to a syndrome known as Stokes-Adams, which is characterized by sudden fainting. A type 2 second-degree heart blockage also often progresses to a more severe type of blockage classified as a third-degree block.

Second-degree heart block may be caused by certain prescription drugs, including antiarrhythmic drugs and beta-blockers. It may also be caused by other diseases and conditions, such as cardiac tumors, Lyme disease, rheumatoid arthritis and hyperthyroidism. Heart block may also be congenital, and affects both men and women equally.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Laura M. Sands
By Laura M. Sands
Laura Sands, the founder of a publishing company, brings her passion for writing and her expertise in digital publishing to her work. With a background in social sciences and extensive online work experience, she crafts compelling copy and content across various platforms. Her ability to understand and connect with target audiences makes her a skilled contributor to any content creation team.
Discussion Comments
Laura M. Sands
Laura M. Sands
Laura Sands, the founder of a publishing company, brings her passion for writing and her expertise in digital publishing...
Learn more
The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.