The complexity of the treatment of cardiac arrhythmias in pregnant women. Case of radiofrequency ablation of atrial tachycardia in a pregnant woman using a three-dimensional nonfluoroscopic navigation system

Purpose. Pregnant women, due to physiological changes in the body, are more prone to cardiac arrhythmias, the frequency of which ranges from 5 to 18%. Paroxysmal supraventricular tachycardia (SVT) occurs in 14% of pregnant women with cardiac arrhythmias. In the treatment of cardiac arrhythmias, radiofrequency ablation (RFA) is currently preferred over antiarrhythmic drugs. However, RFA is associated with radiation exposure to the mother and fetus. The current level of development of arrhythmology provides a unique opportunity to eliminate cardiac arrhythmias without the use of fluoroscopic technologies, which completely excludes radiation exposure.Clinical case. The article presents a clinical case of a 17-year-old patient diagnosed with idiopathic paroxysmal atrial tachycardia successfully treated in Cardiology Research Institute, Tomsk NRMC. When admitted to the hospital, the patient was at 31 weeks of pregnancy.Conclusion. The described case shows the possibility and necessity of using non-fluoroscopic navigation systems when performing RFA in pregnant women. RFA using electroanatomic mapping allows to remove the burden of receiving antiarrhythmic therapy in pregnant women without the use of X-ray.