Purpose: To present a technique that addresses the problem of passing guiding catheters through a stent-graft fenestration and into the target orifice over the wire within the visceral vessel when the fenestration is remote from the top cap.
Technique: A compliant molding balloon is introduced into the main body of the stent-graft and inflated above the fenestration to fill the redundant space in the proximal stent-graft to prevent upward angulation and subsequent displacement of the wire from the target vessel when a less flexible catheter is passed.
Conclusion: This technique is useful in cases with tortuous and complex anatomy and may reduce overall procedure times.
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http://dx.doi.org/10.1583/07-2353.1 | DOI Listing |
Curr Biol
October 2024
Department of Biological Sciences, The National University of Singapore, Singapore 117543, Singapore; Mechanobiology Institute, The National University of Singapore, Singapore 117543, Singapore. Electronic address:
If you ever forget to water your houseplant, you may find its leaves getting soft and droopy - if you water it again in time, the leaves may stiffen, spring back up, and resist gravity. During this recovery, plant cells absorb water and build up an intracellular pressure, called turgor pressure, similar to inflating a balloon. Turgor pressure is an intrinsic component of plant physiology, and its biomechanical role as the 'hydroskeleton' is generally appreciated either statically in structural stability, like leaves resisting gravity, or dynamically in rapid motions, like Venus flytrap snapping, Mimosa closing, or stomatal opening.
View Article and Find Full Text PDFUltraschall Med
April 2024
Department of Otorhinolaryngology, Head and Neck Surgery, Dresden University Hospital, Dresden, Germany.
Purpose: Ultrasound-guided puncture and punch biopsy pose a particular challenge in ultrasound examination training. These techniques should be learned and performed several times using a simulation model that is as realistic as possible before being applied to patients. While the use of agar-agar-based models is extensively documented in the literature, there is a discernible gap in publications specifically addressing their use in punch biopsy and puncture.
View Article and Find Full Text PDFJ Cardiothorac Surg
February 2024
Department of Vascular Surgery, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China.
Purpose: To evaluate the efficacy and safety of selective aneurysmal sac neck-targeted embolization in endovascular aneurysm repair (EVAR) in patients with a hostile neck anatomy (HNA).
Materials And Methods: Between October 2020 and June 2022, patients with an abdominal aortic aneurysm (AAA) and HNA who underwent EVAR with a low-profile stent graft and a selective aneurysmal sac neck-targeted embolization technique were analysed. An HNA was defined by the presence of any of the following parameters: infrarenal neck angulation > 60°; neck length < 15 mm; conical neck; circumferential calcification ≥ 50%; or thrombus ≥ 50%.
J Vasc Surg Cases Innov Tech
December 2023
Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, University of Southern California, Los Angeles, CA.
Front Cardiovasc Med
September 2023
BioCardioLab, Bioengineering Unit - Heart Hospital, Fondazione Toscana "G. Monasterio", Massa, Italy.
Background: Abdominal Aortic Aneurysm (AAA) is a balloon-like dilatation that can be life-threatening if not treated. Fabricating patient-specific AAA models can be beneficial for investigations of hemodynamics, as well as for pre-surgical planning and training, testing the effectiveness of different interventions, or developing new surgical procedures. The current direct additive manufacturing techniques cannot simultaneously ensure the flexibility and transparency of models required by some applications.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!