First aid for supraventricular tachycardia

Supraventricular tachycardia, i.e. supraventricular tachycardia, is one of the common clinical arrhythmias. It is generally categorized into three main types of emergency treatment: physical stimulation of the vagus nerve, medication, and electrical cardioversion. Although supraventricular tachycardia is a common disease, but involves the use of drugs or professional first aid techniques must be completed in the hospital, never privately, or may be life-threatening. First, physical methods: 1, with tongue depressor stimulate the patient’s pharynx, inducing nausea and vomiting; 2, ask the patient to inhale deeply and then close the mouth and nose, and forcefully do the exhalation; 3, let the patient take the lying position, close the eyes, eyeballs looking down, with a finger in the side of the infraorbital moderate pressure on the eye, stimulate the posterior bulb of the parasympathetic nerve endings, the duration of about 10s, the first pressure on the right, and then pressure on the left side, do not be able to press the two sides at the same time. In addition, this method has glaucoma, high myopia or retinal deformation, as well as the elderly should not be used; 4, massage the patient’s unilateral carotid sinus, first right and then left, each time about 10s, pay attention to can not be both sides at the same time massage; 5, deep inhalation and then hold your breath, the face will be immersed in cold water for 20-40s. but myocardial infarction and hypertension patients to avoid using. Second, the drug method: 1, the preferred drug is adenosine, rapid onset of action. However, there may be side effects such as sinus arrest, atrioventricular block, and ventricular arrhythmia. But adenosine half-life is short, less than 6s, so its side effects can disappear soon after the occurrence; 2, the second commonly used drug is verapamil, the success rate of resuscitation can be as high as 90%-100%. Under normal circumstances, it can be effective after 1-5min intravenous injection; 3, the third commonly used is propafenone, it should be noted that patients with organic heart disease is prohibited; 4, in addition to the above drugs, cediran, β-blocker, amiodarone and other drugs, can also be used as supraventricular tachycardia transcription drugs, but the clinical application is less. Third, electrical resuscitation method: generally applied to the drug is ineffective or temporarily can not use the drug treatment of patients.