Examination of Treatment for Complications of the Downstream Aorta after a Frozen Elephant Trunk Procedure during the Follow-up Period
- VernacularTitle:Frozen elephant trunk 術後遠隔期胸部下行大動脈合併症に対し治療を行った症例の検討
- Author:
Hirofumi MIDORIKAWA
1
;
Kyouhei UENO
1
;
Gaku TAKINAMI
1
;
Rie KAGEYAMA
1
;
Ken NIITSUMA
1
;
Megumu KANNO
1
Author Information
- Keywords: Frozen elephant trunk; migration; distal stent graft-induced new entry
- From:Japanese Journal of Cardiovascular Surgery 2021;50(3):150-154
- CountryJapan
- Language:Japanese
- Abstract: Objective: We examined complications of the downstream aorta after the frozen elephant trunk (FET) procedure. Methods: Complications were diagnosed in eight patients: true aneurysm alone in five patients; type A aortic dissection in two patients; and both true aneurysm and type B aortic dissection in one patient. Results: Elective surgery was performed in seven patients. Five patients received a Matsui-Kitamura stent graft (MKS) and three patients received a J Graft Open Stent Graft (JGOSG). The FET procedure was successfully applied in all cases. Over the long term, dilatation of the descending thoracic aorta (dTA) alone was identified in two patients and dilatation of the dTA and migration was identified in three patients using the MKS. Complications of graft kinking and migration were seen in one patient and distal stent graft-induced new entry in two patients using the JGOSG. Thoracic aortic stent graft repair was successfully performed for complications in seven patients. Conclusion: For the improvement of clinical results, FET devices need to offer flexibility and appropriate radial force.
