qrs more than 100ms, if less than 120ms is completely normal, no need to lower, if more than 120ms indicates that the patient has intraventricular conduction abnormalities, need to identify the cause before treatment.
1. qrs generally refers to the ventricular depolarization wave qrs wave on ECG, the duration of qrs wave is mostly between 60~100ms, less than 120ms is normal, no need to lower it, no need to treat it; if the duration of qrs wave is longer than 120ms, it may be caused by conduction block in the part below the bifurcation of Hirschsprung’s bundle in the ventricle, and there is no drug that can lower the duration of qrs wave at the present time.
2. For patients with qrs wave longer than 120ms, if it is caused by unilateral bundle branch block and the patient has no symptoms, no treatment is needed; if the patient has both right and left bundle branch block, and the patient also has symptoms such as syncope or As syndrome, a pacemaker is needed to treat the condition.
If the examination finds that the duration of the qrs wave is greater than 100ms, it is recommended to consult a doctor in time and follow the doctor’s instructions for treatment.