frozen elephant trunk

Full Definition

The frozen elephant trunk (FET) procedure is a hybrid surgical technique that combines open aortic arch replacement with antegrade deployment of a stent-graft into the descending thoracic aorta during circulatory arrest. This single-stage approach treats extensive aortic pathology involving both the arch and descending aorta, particularly useful in acute Type A dissection with arch involvement. The technique provides immediate stabilization of the descending aorta and may facilitate later distal extension if needed.

Usage

Usage note: Often abbreviated as FET in clinical documentation.

In Context

• "The frozen elephant trunk procedure was performed for acute Type A dissection with arch involvement and descending aortic pathology." — Operative report
• "Post-operative CT showed excellent positioning of the frozen elephant trunk device with false lumen thrombosis." — Post-operative imaging report