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2. Atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_block

   Reversible causes of Mobitz II and third-degree heart block include untreated Lyme disease, hypothyroidism, hyperkalemia (high levels of potassium), and drug toxicity. Drugs that slow the conduction of the electrical signal through AV node, such as beta-blockers , digoxin , calcium channel blockers , and amiodarone , can cause heart block if ...

3. Coronary occlusion - Wikipedia

   en.wikipedia.org/wiki/Coronary_occlusion

   Symptoms include chest pain or angina, shortness of breath, and fatigue. [6]A completely blocked coronary artery will cause a heart attack. [6] Common heart attack symptoms include chest pain or angina, pain or discomfort that spreads to the shoulder, arm, back, neck jaw, teeth or the upper belly, cold sweats, fatigue, heartburn, nausea, shortness of breath, or lightheadedness.

4. First-degree atrioventricular block - Wikipedia

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

   First degree AV block does not generally cause any symptoms, but may progress to more severe forms of heart block such as second- and third-degree atrioventricular block. It is diagnosed using an electrocardiogram , and is defined as a PR interval greater than 200 milliseconds. [ 1 ]

5. What Is Heart Disease? Everything You Need to Know - AOL

   www.aol.com/heart-disease-everything-know...

   Though none of the 2,000 men had a history of heart disease or stroke at the beginning of the study, 115 men with ED had or died from cardiac arrest, heart attack, or stroke after nearly four ...

6. Heart Month: Mayo Clinic Health System cardiologist advises ...

   www.aol.com/news/heart-month-mayo-clinic-health...

   Feb. 23—Detecting a heart murmur on your own can be tricky. A murmur is an extra heart sound that can be heard by a stethoscope. Sometimes, a murmur sounds like a humming sound, which can be ...

7. Why Heart Disease Research Still Favors Men - AOL

   www.aol.com/why-heart-disease-research-still...

   The symptoms of heart attacks in men are widely known: crushing chest pain, a telling sensation in the left arm, or sudden collapse. Women, on the other hand, often feel nausea, jaw pain, or ...

8. Heart block - Wikipedia

   en.wikipedia.org/wiki/Heart_block

   Heart block should not be confused with other conditions, which may or may not be co-occurring, relating to the heart and/or other nearby organs that are or can be serious, including angina (heart-related chest pain), heart attack (myocardial infarction), any type of heart failure, cardiogenic shock or other types of shock, different types of ...

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.