Does Warden's procedure reduce sinus node dysfunction after surgery for partial anomalous pulmonary venous...

Area of Science:

• Cardiothoracic Surgery
• Cardiac Surgery
• Pediatric Cardiac Surgery

Background:

• Partial anomalous pulmonary venous connection (PAPVC) is a congenital heart defect requiring surgical correction.
• Sinus node dysfunction (SND) is a potential complication following PAPVC repair.
• The optimal surgical technique to minimize SND remains a critical consideration.

Purpose of the Study:

• To evaluate the efficacy of Warden's procedure in reducing the incidence of sinus node dysfunction (SND) after surgical repair of partial anomalous pulmonary venous connection (PAPVC).
• To compare the rates of SND associated with Warden's procedure versus other surgical techniques for PAPVC.

Main Methods:

• A systematic review of 101 identified papers was conducted.
• Ten papers providing the best evidence were selected for analysis.
• Data on surgical techniques, patient groups, outcomes, and follow-up were tabulated.

Main Results:

• Warden's procedure was associated with near-absent SND during long-term follow-up (0-6.5% incidence).
• Extending atrial incisions across the cavoatrial junction increased SND rates to 18.1%.
• Double-patch repair resulted in significantly higher SND rates (up to 55%).

Conclusions:

• Preservation of the sinus node and its blood supply via Warden's procedure is effective in preventing postoperative SND.
• Warden's technique is superior to other methods in maintaining sinus node function after PAPVC repair.
• Further research with randomized controlled trials and standardized monitoring is warranted.