case_images: PMC10514521_01
case_images: ECG showed the VPC: the QRS complex was RS type in lead V1, migrated to lead V2. The limb lead I was rS type of QRS complex, and R type was showed in II, III, and avF limb leads, which was considered that the VPC may originate from the left coronary sinus.
case_images: fcvm-10-1183787-g001.jpg
case_images: PMC10514521_01_fcvm-10-1183787-g001.jpg
case_images: F1
case_images: Symptoms occurred both before and during the pregnancy. 12-lead electrocardiogram (ECG) during pregnancy revealed sinus rhythm with frequent VPC bigeminy (Figure 1).
case_images: The NavX three-dimensional (3D) mapping system showed the local aorta and left ventricle, the successive red points were ablation target located the left coronary sinus. (CS, coronary sinus, LCC, left coronary cusp).
case_images: fcvm-10-1183787-g002.jpg
case_images: PMC10514521_01_fcvm-10-1183787-g002.jpg
case_images: F2
case_images: A cold saline solution-irrigated ablation catheter (IBI) was inserted to the LCC through the arterial sheath, targeting the site 0.5 cm beneath the anterior opening of the left coronary artery (Figure 2).
case_images: ECG showed normal sinus rhythm after radiofrequency ablation.
case_images: fcvm-10-1183787-g003.jpg
case_images: PMC10514521_01_fcvm-10-1183787-g003.jpg
case_images: F3
case_images: A 12-lead ECG was performed immediately and on day 2 after the procedure, suggesting sinus rhythm without VPC (Figure 3).