Dr. Steve Hammill answers the question: 'What Is Sinus Tachycardia?' — -- Question: What is sinus tachycardia, and is it something that should be treated? Answer :Sinus tachycardia is the heart ...

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.

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 occurs ...

There is clearly a tachycardia with narrow QRS complexes indicating a supraventricular rhythm. The clues to the aetiology are the heart rate of almost exactly 150 / min and the saw tooth waves seen ...

The findings in V1 in Figure 1 certainly suggest sinus tachycardia with one sinus P wave in front of each QRS in V1. However, in Figure 2, in the rhythm strip of V1, there is an additional blip (↓) at ...

Dr. Steve Hammill answers the question: 'How Is Atrial Tachycardia Unique?' — -- Question: What is atrial tahycardia, and how does it differ from other heart rhythm problems? Answer :Atrial ...

Study Objectives: To compare the frequency of daytime and nocturnal cardiac arrhythmias and ST-segment depression episodes among patients with obstructive sleep apnea-hypopnea syndrome (OSAHS), ...

NF was a 24-year-old gravida 5 Para 1031 African-American woman presented for a prenatal visit at 38 weeks of gestation. As part of her visit, the fetal heart rate was auscultated and found to be ...