Sinus rhythm (a.k.a. normal sinus rhythm) refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia ...

Like normal sinus rhythm, the heart rate is still (usually) between 60 and 100 beats per minute, and the P waves are the same shape throughout. Even though the P-P intervals are slightly different ...

Sinus bradycardia ... Bradycardia happens when your heart rate is slower than typical. The heart typically beats between 60 and 100 times per minute. Bradycardia is defined as a heart rate ...

The rhythm is either sinus rhythm or not sinus rhythm. Sinus rhythm refers to the origination of the electrical activity coming from the sinus node — also known as the sinoatrial node, or SA node.

In the heart, β-adrenergic receptors are primarily responsible for responding to SNS signals. With a sustained block of the SNS, the researchers observed loss of the day-night rhythm in sinus node ...

Deciding when to go to the hospital for a rapid heart depends on your health history ... This is called sinus rhythm. Sometimes, the electrical stimulus gets caught in a feedback loop.

1 Department of Family Medicine, University of Washington, Seattle, Washington, USA 2 Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, Georgia, ...

Milestone Pharmaceuticals said on Friday the U.S. health regulator had declined to approve its nasal spray to treat a type of heart condition and had called for an inspection of the facility that ...

sinus rhythm and a heart rate of 70 beats per minute or higher, despite optimal therapy with an angiotensin-converting enzyme inhibitor, β-blocker and aldosterone antagonist. Measuring and ...

Prematurity of an ectopy is determined by the intrinsic escape rhythm ... beats per minute would be considered 'premature'. For a VPC to become evident, however, it must precede the next sinus ...