Fuwai Hospital: 3D Pulsed Field Ablation (PFA) Breaks Through Bottlenecks in High-Risk Persistent AFib Treatment
Recently, the electrophysiology team led by Dr. Yonghui Zhao at Fuwai Central China Cardiovascular Hospital successfully performed a 3D Pulsed Field Ablation (PFA) on a 76-year-old male with persistent atrial fibrillation (AFib). This marks a significant milestone in the era of precise, efficient, and safe AFib management.
📌 Diagnostic Dilemma
The 76-year-old patient had been suffering from persistent AFib for three years, accompanied by severe chest tightness and dyspnea. He presented with multiple comorbidities, including hypertension, prior cerebral infarction, and a high risk of stroke. Echocardiography revealed left atrial enlargement and biventricular valve regurgitation.
For such an elderly and frail patient, traditional thermal ablation (radiofrequency or cryoablation) posed unacceptably high risks of prolonged procedure times, hemodynamic instability, and collateral damage such as esophageal injury or phrenic nerve palsy.
📌 Surgical Nuances & 3D PFA Strategy
To overcome these bottlenecks, Dr. Yonghui Zhao’s multidisciplinary team opted for an individualized strategy utilizing 3D navigation combined with Pulsed Field Ablation (PFA).
One-Stop Workflow: Under general anesthesia and ICE-guided transseptal puncture, the team utilized a 31mm FARAWAVE NAV catheter. This allowed for a seamless "one-stop" process—completing left atrial 3D reconstruction, electroanatomical mapping, and lesion ablation without the need for repetitive catheter exchanges.
Precision & Low Radiation: Integrated with the 3D mapping system, the procedure significantly reduced reliance on X-ray fluoroscopy. The team executed precise segmental ablation using both "basket" and "flower" catheter configurations to ensure complete transmural pulmonary vein isolation (PVI).
💡 Clinical Outcomes & Core Advantages
The entire procedure was efficiently completed in just 1.5 hours. The patient's rhythm converted to normal sinus immediately, with zero complications such as phrenic nerve injury or pericardial effusion. He recovered smoothly and has been discharged.
The 3D PFA technology introduces a paradigm shift in AFib treatment through its non-thermal, tissue-selective electroporation mechanism. It effectively avoids thermal collateral damage to surrounding tissues, minimizes radiation exposure for both patients and operators, and standardizes the ablation workflow for highly complex arrhythmias.
