Cryoablation for atrial fibrillation

Atrial fibrillation is a serious heart disease. After atrial fibrillation occurs, it is important to pay attention to improving the patient's lifestyle habits. Especially people who often stay up late and overeat have a higher chance of developing atrial fibrillation. Therefore, attention should be paid to treatment, but the patient's specific condition is also different. So what is cryoablation for atrial fibrillation?

Atrial fibrillation (AF) is one of the most common arrhythmias in clinical practice, with a high prevalence. There are approximately 10 million AF patients in China. In addition to inducing and aggravating heart failure, atrial fibrillation can also cause thromboembolic events, leading to cerebral stroke, and in severe cases, death or disability. Early detection and early treatment are particularly important. Catheter ablation is a radical treatment for atrial fibrillation. Currently, there are two main options: radiofrequency ablation and cryoablation.

Cryoballoon ablation is a new technology for the treatment of atrial fibrillation. Through the heat-absorbing evaporation of the liquid refrigerant "laughing gas", the temperature of the ablation site is lowered, causing local tissue necrosis and achieving the purpose of isolating the pulmonary veins. Cryoablation is easier for doctors to perform, shortens the operation time, and patients do not experience obvious pain during the operation and have good tolerance. Currently, only a very small number of hospitals in China perform this surgery. As my country's population structure gradually ages, atrial fibrillation has become an increasingly serious public health problem. The rational use of advanced medical technology is the key to reducing and eliminating the harm of atrial fibrillation. The emergence of new technologies will benefit more atrial fibrillation patients.

Advantages

Cryoablation utilizes cryomapping and cryobonding techniques to:

(1) The effectiveness of ablation can be observed through changes in electrical conduction characteristics;

(2) Closely adhere to the target point to prevent displacement and avoid damage to atrioventricular conduction tissue;

(3) No nodal rhythm occurs during ablation, making observation of atrioventricular conduction more accurate;

(4) The atrioventricular block that occurs during the mapping process is reversible, which makes cryoablation have an incomparable advantage over radiofrequency ablation in the treatment of atrioventricular nodal reentrant tachycardia.