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2. Heart block - Wikipedia

   en.wikipedia.org/wiki/Heart_block

   Heart block. Heart block (HB) [1] is a disorder in the heart 's rhythm due to a fault in the natural pacemaker. [2] This is caused by an obstruction – a block – in the electrical conduction system of the heart. Sometimes a disorder can be inherited. Despite the severe-sounding name, heart block may cause no symptoms at all in some cases, or ...

3. First-degree atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/First-degree_atrio...

   First-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart in which electrical impulses conduct from the cardiac atria to the ventricles through the atrioventricular node (AV node) more slowly than normal. First degree AV block does not generally cause any symptoms, but may progress to more ...

4. Congenital heart block - Wikipedia

   en.wikipedia.org/wiki/Congenital_heart_block

   The congenital heart block is a rare disease that affects around 1 child in every 15,000–20,000 births. [3] However, its high mortality (which can be as high as 85% in some severe cases) makes the early diagnosis and intervention very important. [1] CHB can be isolated, where the fetus does not suffer from any other problems, or it can be a ...

5. What is Sleep Apnea? Symptoms & Treatment Options - AOL

   www.aol.com/sleep-apnea-symptoms-treatment...

   Symptoms & Treatment Options. Craig Primack. September 21, 2024 at 4:57 AM ... Heart failure. Cardiovascular disease. ... which can block your airway. Smoking. Smoking can cause inflammation in ...

6. 'I Almost Died of a Severe Artery Blockage—This Is the Sign ...

   www.aol.com/lifestyle/almost-died-severe-artery...

   The Severe Artery Block Sign That Saved One Man's Life. Mark Vallery, 69, of Orlando, Florida, says he didn't experience symptoms of artery blockage until February of 2024. It was only then that ...

7. Third-degree atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/Third-degree_atrio...

   The cause of congenital third-degree heart block in many patients is unknown. Studies suggest that the prevalence of congenital third-degree heart block is between 1 in 15,000 and 1 in 22,000 live births. [citation needed] Hyperkalemia in those with previous cardiac disease [8] and Lyme disease can also result in third-degree heart block. [9]

8. Atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_block

   Atrioventricular block. Atrioventricular block (AV block) is a type of heart block that occurs when the electrical signal traveling from the atria, or the upper chambers of the heart, to ventricles, or the lower chambers of the heart, is impaired. Normally, the sinoatrial node (SA node) produces an electrical signal to control the heart rate.

9. Second-degree atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/Second-degree_atrio...

   Second-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart. It is a conduction block between the atria and ventricles. The presence of second-degree AV block is diagnosed when one or more (but not all) of the atrial impulses fail to conduct to the ventricles due to impaired conduction.