The main venous vasculature of this system includes the coronary sinus and its tributaries, marginal veins, anterior cardiac veins, ventricular veins, and atrial veins. Coronary Sinus. The coronary sinus is the largest cardiac vein with multiple smaller vessels converging into it.

pain or pressure around your forehead, eyes, and cheeks pain that gets worse when you lie down or bend over a stuffy nose a runny nose, which can include mucus that’s clear and runny or that’s.

Symptoms Causes of Ectopic Beats Diagnosis More "Ectopic" means something that is in an odd place or position. In the case of an ectopic beat, that oddly placed something is your heartbeat. You.

ECG criteria for sinus tachycardia Regular rhythm with ventricular rate >100 beats per minute. P-wave with constant morphology preceding every QRS complex. The P-wave is positive in lead II.

When you have tachycardia, your heart rate is faster than 100 beats per minute. With sinus tachycardia, electrical signals from your heart’s sinoatrial (SA) node are telling your heart to beat faster than normal.

Sinus bradycardia is a type of slow heartbeat. A special group of cells begin the signal to start your heartbeat. These cells are in the sinoatrial (SA) node. Normally, the SA node fires at about 60 to 100 times per minute at rest. In sinus bradycardia, the node fires less than 60 times per minute.

Sinus rhythm refers to any cardiac rhythm where depolarisation of the cardiac muscle begins at the sinoatrial node. It is characterised by the presence of correctly-oriented P waves on the electrocardiogram. Sinus rhythm is necessary, but not sufficient, for normal electrical activity within the heart.

A sinus arrhythmia is an irregular heartbeat that’s either too fast or too slow. One type of sinus arrhythmia, called respiratory sinus arrhythmia, is when the heartbeat changes pace when you.

Other potential causes of normal sinus tachycardia include: stimulants, such as nicotine or caffeine alcohol anxiety stress low blood pressure infection

An arrhythmia (also called dysrhythmia) is an abnormal heartbeat. Arrhythmias can start in different parts of your heart and they can be too fast, too slow or just irregular. Normally, your heart beats in an organized, coordinated way.

ECG features of normal sinus rhythm. Regular rhythm at a rate of 60-100 bpm (or age-appropriate rate in children) Each QRS complex is preceded by a normal P wave. Normal P wave axis: P waves upright in leads I and II, inverted in aVR. The PR interval remains constant.

- Normal sinus rhythm with artifact - Normal sinus rhythm with tremor - Value of increasing ECG gain with possible AF - ECG atrial fibrillation - AF with a slow, moderate, and rapid ventricular response - AF with LBBB - AF with complete heart block - Atrial fibrillation with fully paced QRS complexes - AF with ventricular tachycardia - Atrial.