[Extracorporeal catheter fenestration assisted bronchial artery embolization for hemoptysis]

The clinical data of 5 patients with hemoptysis who received bronchial artery embolization (BAE) with the extracorporeal catheter fenestration technique after failed conventional catheterization were retrospectively analyzed. The time spent on catheter fenestration, superselective catheterization of target vessels and intraoperative radiation exposure dose were recorded. The technical success rate, clinical efficacy and postoperative complications were evaluated, and long-and medium-term follow-up was conducted to observe the recurrence of hemoptysis. All 5 patients successfully underwent superselective catheterization with modified catheters, with a technical success rate of 100% and an immediate postoperative hemostatic efficacy rate of 100%. No severe perioperative complications such as vascular dissection, ectopic embolism and spinal cord ischemia occurred. During follow-up, hemoptysis did not recur in 3 patients, while recurrent hemoptysis occurred in 2 patients at 4 months and 1 year after surgery, who received secondary embolization treatment respectively. Preliminary results indicate that the extracorporeal catheter fenestration-assisted superselective catheterization technique is safe and feasible for difficult catheterization caused by anatomical variations. It can simplify the catheterization procedure and reduce radiation exposure, serving as a simple and economical remedial strategy for hemoptysis patients with failed conventional catheterization, which is worthy of clinical promotion.