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The conduction system of the heart is the electrical anatomy of the heart, which runs from the atria to the ventricles and is responsible for the formation and conduction of impulses.
The conduction system of the heart is the electrical anatomy of the heart, which runs from the atria to the ventricles and is responsible for the formation and conduction of impulses.

Although the diagnostic criteria of sinus pause defined by ESC and AHA are greater than or equal to 2S and 3S, respectively, some exceptions sometimes occur.
Although the diagnostic criteria of sinus pause defined by ESC and AHA are greater than or equal to 2S and 3S, respectively, some exceptions sometimes occur.

Low density lipoprotein cholesterol is a risk factor of atherosclerosis and promotes the occurrence of coronary heart disease. Therefore, hyperlipidemia should be treated as soon as possible.
Low density lipoprotein cholesterol is a risk factor of atherosclerosis and promotes the occurrence of coronary heart disease. Therefore, hyperlipidemia should be treated as soon as possible.

In the United States, the incidence rate of coronary heart disease is rising with age. The incidence rate of coronary heart disease in men is higher than that in women among people over 60 years old.
In the United States, the incidence rate of coronary heart disease is rising with age. The incidence rate of coronary heart disease in men is higher than that in women among people over 60 years old.

At present, cardiology has confirmed that the concentration of cholesterol in the blood increases, the incidence rate of coronary heart disease increases, and the mortality caused by CAD increases.
At present, cardiology has confirmed that the concentration of cholesterol in the blood increases, the incidence rate of coronary heart disease increases, and the mortality caused by CAD increases.

When the fragmented QRS complex appears in the V1 lead of ECG with the notch of QRS wave in the inferior lead, that is, the hook sign, it is necessary to screen for congenital heart disease.
When the fragmented QRS complex appears in the V1 lead of ECG with the notch of QRS wave in the inferior lead, that is, the hook sign, it is necessary to screen for congenital heart disease.

In the United States, after World War II, with the unremitting encouragement of the medical community, the mortality rate of coronary heart disease showed a gradual downward trend.
In the United States, after World War II, with the unremitting encouragement of the medical community, the mortality rate of coronary heart disease showed a gradual downward trend.

Sometimes, the QRS wave in lead V1 is a multi component waveform of rSRs, and should not be misdiagnosed as incomplete or complete RBBB. It is necessary to screen for congenital heart disease.
Sometimes, the QRS wave in lead V1 is a multi component waveform of rSRs, and should not be misdiagnosed as incomplete or complete RBBB. It is necessary to screen for congenital heart disease.

Patients with congenital long QT syndrome are at risk of developing complex ventricular premature contractions, paroxysmal ventricular tachycardia, torsades de Pointes, and ventricular fibrillation.
Patients with congenital long QT syndrome are at risk of developing complex ventricular premature contractions, paroxysmal ventricular tachycardia, torsades de Pointes, and ventricular fibrillation.

Patients with congenital long QT syndrome are at risk of developing complex ventricular premature contractions, paroxysmal ventricular tachycardia, torsades de Pointes, and ventricular fibrillation.
Patients with congenital long QT syndrome are at risk of developing complex ventricular premature contractions, paroxysmal ventricular tachycardia, torsades de Pointes, and ventricular fibrillation.

Activating the hepatic X receptor on the nucleus of endothelial progenitor cells can activate PI3K Akte NOS signaling pathway and repair the injured vascular endothelium.
Activating the hepatic X receptor on the nucleus of endothelial progenitor cells can activate PI3K Akte NOS signaling pathway and repair the injured vascular endothelium.

When the vascular endothelium is damaged, primitive progenitor cells can be imported into the body to reach the damaged vascular site and repair the vascular endothelium.
When the vascular endothelium is damaged, primitive progenitor cells can be imported into the body to reach the damaged vascular site and repair the vascular endothelium.