Association between Cabrol shunt and new-onset atrial fibrillation after acute type A aortic dissection surgery: a retrospective study.

OBJECTIVE

To examine the association between Cabrol shunt and the incidence of new-onset postoperative atrial fibrillation (POAF) after surgery for acute type A aortic dissection (AAAD).

METHODS

A total of 240 patients who underwent AAAD surgery were retrospectively enrolled, including 185 patients treated with a Cabrol shunt and 55 patients without a Cabrol shunt. Propensity score matching (PSM) was used to reduce treatment selection bias. Multivariable logistic regression was performed to identify factors associated with new-onset POAF.

RESULTS

Patients in the non-Cabrol shunt group had a higher observed incidence of new-onset POAF than those in the Cabrol shunt group (P = 0.013). This finding remained consistent across multiple sensitivity analyses as well as the number needed to treat analysis. Multivariable logistic regression showed that age and aortic cross-clamp time were independent factors influencing the occurrence of new-onset POAF in patients with AAAD.

CONCLUSIONS

Cabrol shunt use was associated with a lower observed incidence of new-onset POAF in patients undergoing AAAD surgery. Aortic cross-clamp time may be related to this association. Age was also independently associated with new-onset POAF.