Percutaneous coronary intervention carries a risk of iatrogenic catheter dissection. A spiral aorto-ostial dissection can completely occlude the vessel and cause ischemia with significant hemodynamic compromise. The mortality from such dissections is approximately 6.5%. The situation can be rescued percutaneously by stenting the true lumen open, but this relies on having a wire within the true lumen. Large dissections often have a small true lumen that is hard to wire and a large false lumen that wires easily. There is a paucity of literature outlining the necessary steps to achieve procedural success. This case series includes 2 spiral dissections and demonstrates a step-by-step approach to manage this situation successfully.
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http://dx.doi.org/10.1016/j.jaccas.2024.103121 | DOI Listing |
JTCVS Open
February 2025
Division of Vascular and Interventional Radiology, University of Michigan, Ann Arbor, Mich.
Background: Visceral malperfusion is a serious complication of acute aortic dissection. Currently, diagnosis relies on signs of end-organ failure, which may be clinically obscure and delay crucial treatment.
Objective: The aim was to investigate external iliac (IA) and superior mesenteric artery (SMA) pressures in cases where both vessels originate exclusively from the true lumen to develop and validate a novel early indicator of visceral malperfusion.
BMC Cardiovasc Disord
March 2025
Department of Thoracic and Cardiovascular Surgery, Ewha Womans University Aorta and Vascular Hospital, Ewha Womans University Medical Center, Seoul, Korea.
Introduction: Acute Stanford type A aortic dissection (ATAAD) is a lethal emergency. However, even with instant surgical repair, early mortality is up to 20%. ATAAD complicated by coronary artery involvement is considered rare but life-threatening because this can cause coronary artery malperfusion which results in acute myocardial infarction.
View Article and Find Full Text PDFAnn Vasc Surg
March 2025
Department of Vascular Surgery and Endovascular Therapy, Yale School of Medicine, New Haven, CT, USA. Electronic address:
Introduction: Early detection of abdominal aortic aneurysms (AAA) is a mainstay of diagnosis, with Endovascular aortic repair (EVAR) emerging as the primary mode of repair. Maximum diameter measurement remains central to risk assessment; however, recent studies suggest AAA volumetric analysis may be more sensitive to true size changes. We compare the utility of volume and diameter in AAA size assessment and further investigating related clinical factors.
View Article and Find Full Text PDFEur J Vasc Endovasc Surg
March 2025
Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. Electronic address:
Objective: The optimal treatment for retrograde ascending aortic dissection (rAAD) remains unclear. In this study, the long term clinical outcomes of endovascular treatment for rAAD were retrospectively investigated, and haemodynamic remodelling of the ascending aorta was analysed.
Methods: This retrospective, single centre study analysed clinical data of rAAD cases treated with endovascular therapy from 2001 - 2020.
Annu Int Conf IEEE Eng Med Biol Soc
July 2024
Since the endovascular repair for aortic dissection by stent graft still has limitations of the application scope and complications, our group has been developing and evaluating a new stenting function by replacing it with a large self-expandable bare metal stent. In this study, we use finite element analysis to evaluate the remodeling outcomes of the dissected aorta by this new stent. An ideal aortic dissection model was also designed using numerical simulations based on previous animal and in vitro experiments, and then a 32mm bare metal stent was deployed at the location of the lesion.
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