Single-center early efficacy evaluation of Fontus branch-type intraoperative stenting for acute type a aortic dissection.

OBJECTIVE

To explore the clinical application value of the new Fontus intraoperative single-branch stent in acute type A aortic dissection (ATAAD).

METHODS

Ninety ATAAD patients admitted to the Department of Cardiothoracic Surgery of Nanjing Gulou Hospital from March 2022 to June 2023 who met the exclusion criteria were retrospectively analyzed, with Fontus stent applied intraoperatively in 33 cases and Cronus stent applied intraoperatively in 57 cases. Clinical data of preoperative baseline data, intraoperative indexes, perioperative period and postoperative follow-up were collected from both groups.

RESULTS

The rate of false lumen closure of the descending aorta at the level of the pulmonary bifurcation was significantly higher in the Fontus group than in the Cronus group; and the rate of endoleak was lower after Fontus stent application for modified arch island anastomosis.

CONCLUSIONS

The new Fontus intraoperative single-branch stent is safe and effective in ATAAD and can reduce the incidence of postoperative endoleak.