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2. 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.

3. Atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_block

   Specialty. Cardiology. 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.

4. 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 ...

5. Intraventricular block - Wikipedia

   en.wikipedia.org/wiki/Intraventricular_block

   Intraventricular block. ECG characteristics of an intraventricular block subtype - RBBB showing wide QRS complexes with a terminal R wave in lead V1 and a prolonged S wave in lead V6. An intraventricular block is a heart conduction disorder — heart block of the ventricles of the heart. [1] An example is a right bundle branch block, right ...

6. The new Victoria's Secret sports bra connects directly to ...

   www.engadget.com/2014-11-27-victoria-s-secret...

   The $75 bra comes with the electrodes all built-in, but doesn't contain a heart-rate monitor itself. You'll need to connect that at the back, although the listing doesn't specify which "leading ...

7. Left bundle branch block - Wikipedia

   en.wikipedia.org/wiki/Left_bundle_branch_block

   ECG characteristics of a typical LBBB showing wide QRS complexes with abnormal morphology in leads V1 and V6. Left bundle branch block ( LBBB) is a conduction abnormality in the heart that can be seen on an electrocardiogram (ECG). [1] In this condition, activation of the left ventricle of the heart is delayed, which causes the left ventricle ...