Premature ventricular contractions of 17,000 beats per 24 hours are dangerous. The occurrence of premature ventricular contractions is mainly caused by the abnormal beating of the ventricles. If 17,000 premature ventricular contractions occur within 24 hours, it means that the number of premature contractions is very frequent, which may affect the function of the heart, resulting in heart failure, insufficient blood supply to peripheral organs, and the patient may have dizziness, blackness and other abnormal symptoms, and may even lead to a drop in blood pressure. If ventricular premature beats 17000 times per 24 hours, it is likely to be the manifestation of organic heart disease, it is recommended to consult the doctor in a timely manner, improve the examination, and consider the application of cardiac radiofrequency ablation application of amiodarone, bisoprolol, and other drugs in accordance with the doctor’s instructions. The cause of the disease should be actively searched for, and the treatment should be directed to the cause. If you have frequent ventricular premature beats, you must receive regular treatment, and you should rest and avoid overwork, so that you can slowly return to normal.