Supraventricular Tachycardia Surgery

Paroxysmal supraventricular tachycardia (PSVT) is a clinically common form of rapid arrhythmia due to reentry. It is characterized by paroxysmal sudden onset and sudden stop. The heart rate is usually 160-220 times per episode. Points, each episode can last less than 1 second or lasts for a few seconds, minutes, hours, or even days, automatically or after treatment, some can be recurrent, the interval is like an ordinary person, the interval of the interval is different, when the attack It can stimulate the vagus nerve, use drugs, synchronous direct current or transesophageal overspeed pacing to terminate tachycardia. The most effective and thorough treatment is radiofrequency ablation. More common in no structural heart disease. Sudden tachycardia suddenly broke out, light flustered chest tightness, severe dizziness due to hemodynamic disorders, and even loss of consciousness. Radiofrequency ablation is currently the most effective and thorough treatment for radical ventricular tachycardia. Cardiac radiofrequency ablation (catheterradiofrequency ablation) is to send the electrode catheter into the specific part of the heart cavity through the vein or artery. The release of radiofrequency current leads to coagulative necrosis of the local endocardial and subendocardial myocardium, which can block the abnormal conduction of tachyarrhythmia. Interventional techniques for beam and origin. The radiofrequency current introduced into the heart chamber through the catheter is in the range of 1-3 mm, which will not cause harm to the body. Radiofrequency ablation has become the most effective method for radical paroxysmal tachycardia. Basic equipment includes X-ray machines, radiofrequency ablation devices, and intracardiac electrophysiological examination instruments. Treatment of diseases: paroxysmal supraventricular tachycardia Indication Supraventricular tachycardia. Preoperative preparation 1. Electrophysiological examination and radiofrequency ablation generally require hospitalization and require routine laboratory tests (including electrocardiograms and blood tests). 2. Dietary precautions: Do not eat or drink within 6-8 hours before surgery. 3. Tell the doctor the name and dosage of the drug used. All antiarrhythmic drugs should be discontinued 3-5 days before electrophysiological examination and radiofrequency ablation. Antiarrhythmic drugs may affect the test results. 4. Tell your doctor about allergies to the drug. Surgical procedure Electrophysiological examination and radiofrequency ablation are performed in a surgical room with special equipment (called a catheterization chamber). Catheter room workers typically include electrophysicists, assistants, nurses, and technicians. The patient is lying on the X-ray examination bed. The medical staff connects the various monitoring devices to the patient's body and covers your body with a sterile single. The medical staff wears sterile surgical gowns and gloves. First, the skin of the catheter insertion site (ingui, arm, shoulder or neck) is disinfected, local anesthetic is used for local anesthesia; then the vein/arterial vessel is punctured with a puncture needle, and the electrophysiological catheter is inserted into the heart chamber through the blood vessel; A long, bendable catheter that transmits electrical signals to and from the heart. The lead records electrical activity in different parts of the heart, and sends weak electrical stimulation to stimulate the heart to induce arrhythmia and clear the diagnosis of tachycardia; then the doctor finds the exact location of the abnormal electrical activity of the heart through the catheter (this process is called "standard" Measure "), and then send radiofrequency current ablation treatment through the ablator to cure tachycardia.