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THE JOURNAL OF CARDIOVASCULAR SURGERY

A Journal on Cardiac, Vascular and Thoracic Surgery


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The Journal of Cardiovascular Surgery 2015 Jul 29

Copyright © 2015 EDIZIONI MINERVA MEDICA

language: English

Retrograde type A dissection following hybrid supra-aortic endovascular surgery in high risk patients unfit for conventional open repair

Yip H. C., Chan Y. C.,Qing K. X., Cheng S. W.

Division of Vascular & Endovascular Surgery, Department of Surgery, University of Hong Kong Medical Centre, South Wing, 14th Floor K Block, Queen Mary Hospital, Hong Kong


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INTRODUCTION: Hybrid procedures with combined open extra-anatomical supra-aortic bypasses and endovascular surgery are less invasive for patients with complex aortic arch pathology. The aim of this paper is to report patients who developed retrograde Type A aortic dissection following initially successful hybrid endovascular treatment.
METHODS: Retrospective review of prospectively collected computerized departmental database. All patients with supra-aortic hybrid endovascular surgery and post-procedure retrograde Type A dissection were identified. Patient demographics, comorbid conditions, perioperative parameters, procedural details and post-operative complications were collected.
RESULTS: From May 2005 to July 2014, 163 patients underwent thoracic aortic endovascular procedures at our institution. From the 46 patients who had supra-aortic hybrid endovascular repair, six patients (6/46: 13% of all supra-aortic hybrid cases, 3 males) developed retrograde Type A aortic dissection. All were elective cases, with 3 chronic dissecting aneurysms and 3 atherosclerotic aneurysms. All had one stage hybrid procedures: 2 patients had carotid-carotid bypass grafts, 1 had carotid-carotid-left subclavian bypass graft, and 3 had bypass grafts from ascending aorta to innominate artery and left carotid artery. Five patients had Cook Zenith thoracic stentgrafts (Cook®, Bloomington, USA), and 1 had Medtronic® Valiant stentgrafts (Medtronic Vascular Inc, Santa Rosa, USA). The retrograde Type A dissection occurred with sudden symptoms at day 5, 6, 10, 20, 105 and 128 respectively. There were 3 immediate fatalities and 2 patients treated conservatively deemed unfit for reintervention (one died at 9 month of pneumonia, and one remained alive at 7 months post-complication). One patient underwent successful emergency open surgery and survived.
CONCLUSION: Supra-aortic hybrid procedures in treating aortic arch pathology may be at risk of developing retrograde Type A dissection. This post-operative complication inevitably have poor outcome, even with early diagnosis and prompt treatment.

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Cite this article as

Yip HC, Chan YC, Qing KX, Cheng SW. Retrograde type A dissection following hybrid supra-aortic endovascular surgery in high risk patients unfit for conventional open repair. J Cardiovasc Surg 2015 Jul 29. 

Corresponding author e-mail

ycchan88@ hkucc.hku.hk