News | November 19, 2012

New Aortic Stenting Techniques Using “Off the Shelf” Devices

Minimally invasive procedures for aortic aneurysm will combine good outcomes with reduced costs

November 19, 2012 — New endovascular grafting techniques to repair tissue following abdominal aortic aneurysm rupture are generating growing enthusiasm among vascular surgeons, and a number of those new treatment options were presented at the 39th VEITHsymposium held in New York City Nov. 14 to 18.

The new techniques — chimney, sandwich and periscope grafts, sometimes referred to as CHIMPS — may prove to be especially useful in emergency situations, when vascular surgeons do not have the luxury of time to custom-craft a grafting device for the patient in need.

Minimally invasive endovascular procedures to deploy stents as scaffolding for damaged blood vessels have been proven effective in aortic aneurysm repair for years now, with results comparable to those from conventional open surgery. However, stenting is not a viable treatment option for all AAA patients, but rather is limited to those for whom the grafts will not compromise the intricate nexus of arterial vessels that supply the kidneys and other visceral organs.

In particularly complex cases, endovascular surgeons may turn to fenestrated or branched grafts, but these procedures require the surgeon to customize the grafting device to conform with each patient’s unique anatomy. Mapping the location of the aneurysm and the patient’s anatomy, and then tailoring the device require significant lead time of at least six weeks in most cases. In addition, fenestrated and branched graft devices are significantly more costly and require special training to deploy.

Although still awaiting in-depth clinical trials to evaluate their effectiveness, CHIMPS may offer an off-the-shelf solution to both the time and expense of those procedures, allowing vascular surgeons to use pre-fabricated stents in place of the more elaborate fenestrated or branched devices. They also may be easier for the surgeon to deploy.

A special session of the VEITHsymposium on Friday morning, Nov. 16, took up the issue of CHIMPS, with experts presenting analysis of outcomes, tips on placement technique, factors to consider when deciding whether to use CHIMPS and what precautions must be taken.

For more information:

Related Content

Endologix Reports Positive One-Year Results From the Ovation LUCY Study
News | Stent Grafts | July 16, 2018
Endologix Inc. announced one-year results from the LUCY (Evaluation of FemaLes who are Underrepresented Candidates for...
FDA Committee Votes in Favor of Incraft AAA Stent Graft System
News | Stent Grafts | June 13, 2018
Cardinal Health announced that its Incraft Abdominal Aortic Aneurysm (AAA) Stent Graft System has received a favorable...
First Patient Enrolled in Gore Excluder Investigational Study
News | Stent Grafts | January 08, 2018
January 8, 2018 — W. L. Gore & Associates Inc.
FDA Concerned About Increase in stent graft Endovascular Type III Leaks
News | Stent Grafts | October 09, 2017
October 9, 2017 — The U.S.
Gore Announces First-in-Human Use of Gore TAG Conformable Thoracic Stent Graft
News | Stent Grafts | July 17, 2017
W. L. Gore & Associates Inc. announced the first patient implant of the Gore TAG Conformable Thoracic Stent Graft...
News | Stent Grafts | April 06, 2017
Endologix Inc. announced that the first patients were treated in the Expanding Patient Applicability with Polymer...
Gore, Viabahn VBX Balloon Expandable Endoprosthesis, stent graft, iliac artery, FDA approval
Technology | Stent Grafts | January 31, 2017
W. L. Gore & Associates (Gore) announced that the Gore Viabahn VBX Balloon Expandable Endoprosthesis (VBX Stent...
Lombard Medical, Aorfix endovascular stent graft, Japanese regulatory approval, IntellFlex LP Delivery System
News | Stent Grafts | January 11, 2017
January 11, 2017 — Lombard Medical Inc.
stent grafts, fluid flow model, clotting risk, Journal of Vascular Surgery

An anterior view is shown of the geometries of each of the graft configurations: (A) fenestrated, (B) antegrade branched, (C) retrograde branched, and (D) manifold stent graft. Image courtesy of Taylor Suess, et al.

News | Stent Grafts | January 05, 2017
January 5, 2017 — Whether patients with mechanical heart valves and stents must take blood thinners depends on how ef
News | Stent Grafts | December 13, 2016
Lombard Medical Inc. announced that its Altura endovascular stent graft system was featured in a scientific...
Overlay Init