Is sinus bradycardia normal

summary

The impulses of normal sinus rhythm originate from the sinus node, with a frequency of 60-100 beats / min in adults. ECG showed that P wave of sinus rhythm was upright in lead Ⅰ, Ⅱ, AVF, inverted in lead aVR, PR interval was 0.12-0.20 seconds. The frequency of adult sinus rhythm is lower than 60 beats / min, which becomes sinus bradycardia. Sinus bradycardia is often accompanied by sinus arrhythmia. The ECG characteristics of sinus bradycardia were as follows: ① P wave was upright in leads I, II and AVF; ② P wave was inverted in lead aVR; ③ P wave frequency was less than 100 beats / min. Let's take a look at the following.

Is sinus bradycardia normal

First, the ECG characteristics of sinus bradycardia are: ① P wave is upright in leads I, II and AVF; ② P wave is inverted in lead aVR; ③ P wave frequency is less than 100 beats / min. Sinus bradycardia is often accompanied by sinus arrhythmia (the difference between different PP intervals is greater than 0.12 seconds). Sinus bradycardia can be seen in healthy young people, athletes, sleep state, sinoatrial node lesions, acute inferior myocardial infarction, etc. it can also be seen in intracranial diseases, severe hypoxia, hypothyroidism, obstructive jaundice, and application β Receptor blockers, digitalis and other drugs.

Second: sinus bradycardia can be seen in the healthy state of healthy people, but also in some disease states, not necessarily morbid. It is suggested to go to the hospital for further examination, listen to the opinions of specialists, and judge whether it is morbid, so as to decide whether to accept treatment and specific treatment plan.

Third: asymptomatic sinus bradycardia usually does not need treatment. If the heart rate is too slow and the cardiac output is insufficient, it is recommended to go to the hospital for regular treatment. Atropine or isoproterenol can be used. However, it should not be used for a long time. Long term application has serious adverse reactions, so cardiac pacing therapy should be considered.

matters needing attention

Sinus bradycardia can be seen in the healthy state of healthy people, but also in some disease states, which is not necessarily morbid. It is suggested to go to the hospital for further examination, listen to the opinions of specialists, and judge whether it is morbid, so as to decide whether to accept treatment and specific treatment plan. Asymptomatic sinus bradycardia usually does not need treatment. If the heart rate is too slow and the cardiac output is insufficient, it is recommended to go to the hospital for regular treatment.