Dynamic electrocardiogram, also known as long-range electrocardiogram, can provide the information of the subjects' 24-hour dynamic ECG activity, which is an important stage in the development of ECG.
Ordinary electrocardiogram can only record the electrocardiogram of dozens of heartbeats when the subject is calm and very short. Dynamic electrocardiogram can continuously record ECG signals for 24 hours in daily activities. According to the average heart rate of 75 beats per minute, more than 1, ECG signals will be recorded, and the detection rate of some transient arrhythmia is naturally very high. Sometimes we can even observe some dangerous arrhythmia ECG, such as bradycardia, ventricular tachycardia, degree II and III atrioventricular block. In particular, some patients who often have angina pectoris can't easily capture the ECG at the time of attack in routine ECG, while the dynamic ECG instrument is worn in activities, so it is possible that the ECG signal will be recorded during the attack of angina pectoris, which is convenient for clinical analysis and identification. In addition, it is also helpful for the diagnosis of some asymptomatic myocardial ischemia patients, and the ECG of ST-T change or arrhythmia can be obtained. Clinically, dynamic electrocardiogram examination is mainly suitable for the following aspects.
(1) People with unexplained palpitation, chest tightness, dyspnea, fainting and other symptoms.
(2) those who consciously have angina pectoris, bradycardia, tachycardia and other symptoms, but the ordinary electrocardiogram examination is normal.
(3) Patients with arrhythmia and transient myocardial ischemia can further understand the relationship between arrhythmia and daily life and day and night through this examination.
(4) To dynamically observe the changes of heart rate, ST segment and T wave in patients with myocardial infarction.
(5) judging the curative effect of antiarrhythmic drugs and drugs for angina pectoris.
(6) To evaluate the function of artificial cardiac pacemaker and the indications for choosing to install pacemaker.