Surgical interventions after emergency endovascular stent-grafting for acute type B aortic dissections.
In this retrospective study we reviewed our results of secondary surgery for complications after emergency placement of aortic stents for acute type B dissection. From October 2000 to June 2006, endovascular stent-grafting (ESG) was performed in 13 patients as an emergency procedure for acute type B dissection. Self-expanding nitinol stents (mean diameter 39.8+/-4.7 mm) were placed into the descending aorta distal to the left subclavian artery. In-hospital mortality was 15.4% (2/13) and related to persistent visceral malperfusion. Three patients (23%) required consecutive open surgery of the thoracic aorta after emergency endovascular stent-grafting for acute type B dissection. Indications for surgery included acute development of retrograde type A aortic dissection and acute stent dislocation by fractured wires and secondary leakage. Elective surgery was necessary in one patient 6 months after stent-grafting for late formation of an aneurysm of the descending aorta. There were no deaths or major morbidity after surgery of the thoracic aorta early or during follow-up. Mean follow-up was 38.0+/-13.9 months (range 1-70 months) and complete. We conclude from our study that stent-grafting of the descending aorta is a feasible, relatively safe and effective approach even in the emergency treatment of patients with complicated acute type B dissection. However, in a relevant number of patients emergency stent-grafting for acute type B aortic dissection results in complications that require secondary surgical treatment.
Department of Cardiac Surgery, University Hospital of Schleswig-Holstein, Campus Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany.
Lennart
L
Duebener
Franz
F
Hartmann
Volkhard
V
Kurowski
Gert
G
Richardt
Volker
V
Geist
Armin
A
Erasmi
Hans-Hinrich
HH
Sievers
Martin
M
Misfeld
D000368:Aged; D000497:Alloys; D000784:Aortic Dissection / Q000000981:diagnostic imaging / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000000981:diagnostic imaging / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation; D004630:Emergencies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
D000497:Alloys; C013616:nitinol