Two cases of aortic intimal intussusception during endovascular repair of an acute type B dissection

George E. Havelka, Tadaki Morley Tomita, S Chris Malaisrie, Karen J Ho, Mark Eskandari*

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Purpose: To raise awareness of a previously undescribed complication of thoracic endovascular aortic repair (TEVAR) for aortic dissection that can lead to acute aortic occlusion and to highlight that early recognition, excision of the intimal flap, and open aortic repair can be lifesaving. Case Report: Two patients underwent TEVAR for acute type B dissections complicated by abdominal malperfusion syndrome. During stent-graft deployment, the intimal flap circumferentially detached from its origin proximally with subsequent intussusception, leading to acute aortic occlusion. Both complications were recognized intraoperatively with immediate conversion to open aortic reconstruction and intimal flap excision. The first patient required an infrarenal aortobi-iliac bypass, while the second had an open aortic fenestration and bovine pericardial patch repair of the aortotomy. Their postoperative courses were uneventful. Follow-up imaging revealed excellent stentgraft approximation without endoleak and thrombosis of the false lumen. Conclusion: Aortic intimal flap detachment and intussusception is a rare but potentially fatal complication of TEVAR for acute complicated aortic dissection. Quick diagnosis and a low threshold for conversion to open repair are critical in achieving a successful outcome.

Original languageEnglish (US)
Pages (from-to)521-528
Number of pages8
JournalJournal of Endovascular Therapy
Volume23
Issue number3
DOIs
StatePublished - Jun 1 2016

Fingerprint

Tunica Intima
Intussusception
Dissection
Thorax
Endoleak
Stents
Thrombosis
Transplants

Keywords

  • Aortic intima
  • Complications
  • Conversion
  • Intussusception
  • Thoracic endovascular aortic repair
  • Type B dissection

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

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abstract = "Purpose: To raise awareness of a previously undescribed complication of thoracic endovascular aortic repair (TEVAR) for aortic dissection that can lead to acute aortic occlusion and to highlight that early recognition, excision of the intimal flap, and open aortic repair can be lifesaving. Case Report: Two patients underwent TEVAR for acute type B dissections complicated by abdominal malperfusion syndrome. During stent-graft deployment, the intimal flap circumferentially detached from its origin proximally with subsequent intussusception, leading to acute aortic occlusion. Both complications were recognized intraoperatively with immediate conversion to open aortic reconstruction and intimal flap excision. The first patient required an infrarenal aortobi-iliac bypass, while the second had an open aortic fenestration and bovine pericardial patch repair of the aortotomy. Their postoperative courses were uneventful. Follow-up imaging revealed excellent stentgraft approximation without endoleak and thrombosis of the false lumen. Conclusion: Aortic intimal flap detachment and intussusception is a rare but potentially fatal complication of TEVAR for acute complicated aortic dissection. Quick diagnosis and a low threshold for conversion to open repair are critical in achieving a successful outcome.",
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AU - Tomita, Tadaki Morley

AU - Malaisrie, S Chris

AU - Ho, Karen J

AU - Eskandari, Mark

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N2 - Purpose: To raise awareness of a previously undescribed complication of thoracic endovascular aortic repair (TEVAR) for aortic dissection that can lead to acute aortic occlusion and to highlight that early recognition, excision of the intimal flap, and open aortic repair can be lifesaving. Case Report: Two patients underwent TEVAR for acute type B dissections complicated by abdominal malperfusion syndrome. During stent-graft deployment, the intimal flap circumferentially detached from its origin proximally with subsequent intussusception, leading to acute aortic occlusion. Both complications were recognized intraoperatively with immediate conversion to open aortic reconstruction and intimal flap excision. The first patient required an infrarenal aortobi-iliac bypass, while the second had an open aortic fenestration and bovine pericardial patch repair of the aortotomy. Their postoperative courses were uneventful. Follow-up imaging revealed excellent stentgraft approximation without endoleak and thrombosis of the false lumen. Conclusion: Aortic intimal flap detachment and intussusception is a rare but potentially fatal complication of TEVAR for acute complicated aortic dissection. Quick diagnosis and a low threshold for conversion to open repair are critical in achieving a successful outcome.

AB - Purpose: To raise awareness of a previously undescribed complication of thoracic endovascular aortic repair (TEVAR) for aortic dissection that can lead to acute aortic occlusion and to highlight that early recognition, excision of the intimal flap, and open aortic repair can be lifesaving. Case Report: Two patients underwent TEVAR for acute type B dissections complicated by abdominal malperfusion syndrome. During stent-graft deployment, the intimal flap circumferentially detached from its origin proximally with subsequent intussusception, leading to acute aortic occlusion. Both complications were recognized intraoperatively with immediate conversion to open aortic reconstruction and intimal flap excision. The first patient required an infrarenal aortobi-iliac bypass, while the second had an open aortic fenestration and bovine pericardial patch repair of the aortotomy. Their postoperative courses were uneventful. Follow-up imaging revealed excellent stentgraft approximation without endoleak and thrombosis of the false lumen. Conclusion: Aortic intimal flap detachment and intussusception is a rare but potentially fatal complication of TEVAR for acute complicated aortic dissection. Quick diagnosis and a low threshold for conversion to open repair are critical in achieving a successful outcome.

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