Sinus rhythm noun explanation

Sinus rhythm is a normal rhythm originating from the sinoatrial node, with a frequency of 60 to 100 beats per minute. It is related to the normal structure and function of the heart, and abnormalities can cause arrhythmia. Sinus rhythm refers to the rhythm originating from the sinoatrial node and belongs to the normal rhythm. Under normal circumstances, the sinus node sends out impulse frequency of 60~100 times/minute, this rhythm of the heart beat can cause atrial and ventricular contraction and relaxation, so as to achieve the pumping function, meet the metabolic needs of various tissues and organs of the body. Sinus rhythm is closely related to the normal structure and function of the heart. The sinus node is the normal pacemaker of the heart. It is located in the upper part of the right atrium. It has automaticity and excitability. Automaticity refers to the ability of the sinus node to produce rhythmic excitation automatically, while excitability refers to the ability of the sinus node to produce excitation after receiving stimulation. When the automaticity and excitability of the sinus node are normal, it can produce normal sinus rhythm. If there is abnormal sinus node function, or if there is a problem with the conduction system of the heart, it may lead to arrhythmia, such as sinus tachycardia, sinus bradycardia, sinus arrhythmia, etc. These arrhythmias may affect the function of the heart, causing palpitations, dizziness, fatigue and other symptoms, and may even be life-threatening in severe cases. In patients with sinus arrhythmia, further electrocardiograms, cardiac ultrasounds, etc. are needed to determine the presence of other heart diseases. If sinus arrhythmia is caused by emotional agitation, strenuous exercise, alcohol consumption, smoking, etc., no special treatment is usually required. once these causes are removed, the arrhythmia will disappear.

If sinus arrhythmia is caused by heart disease, treatment should be given according to the cause, and antiarrhythmic drugs should be given to control the occurrence of arrhythmia. In short, sinus rhythm is a normal rhythm, but if sinus arrhythmia and other abnormal conditions occur, it is necessary to seek medical attention in time for relevant examinations and treatment to ensure the health of the heart.