Navigation Links
EuroPCR 2014 examines vascular response and long-term safety of bioresorbable scaffolds

22 May 2014, Paris, France: At EuroPCR 2014 yesterday, experts discussed the development in evidence for bioresorbable vascular scaffolds, which represent an era of vascular restoration in interventional cardiology. The available data were analysed and participants heard that bioresorbable fixed strut vascular scaffolds are associated with increased acute thrombogenicity due to flow disturbances. This means that patients who are implanted with these devices need to receive ongoing dual antiplatelet therapy, and the strategy is under discussion. The panellists also pointed out that endothelialisation is further delayed when these devices are used compared with when thin strut drug-eluting stents are used.

Tan Huay Cheem, National University Heart Centre, Singapore, said: I think one of the greatest attractions of bioresorbable vascular scaffolds is the idea that normal vasofunction will eventually be restored. There is some evidence from imaging data to show that the plaque is modified alongside the stent dissolving. There is also positive remodelling taking place, and this vascular response is one of the most exciting aspects of the technology.

The diversity of devices that are approaching the market was also emphasised. Michael Joner, CEO, CVPath Institute, Gaithersburg, USA, said: There is no uniformity in these devices and no class effect. Every device needs to be assessed carefully and individually. The inflammatory response associated with these devices depends on the pace of degradation, so we need to assess how they degrade over time, and this has important implications for patient safety.

The long-term safety of bioresorbable vascular scaffolds will depend on various things: if we can see that arterial healing occurs over time; if full degradation occurs in the absence of excess inflammation and if we do not see too much positive remodelling, then these devices can be very beneficial to patient care, Joner added.

I think the technology is very interesting, but the bar that has been set by drug-eluting stents is very high and bioresorbable vascular scaffolds will need to match this, especially with regard to strut thickness and deliverability, said Prof Chaim Lotan, Head of the Cardiovascular Insitute, Hadassah University Hospital, Jerusalem, Israel.

Lotan also commented on the lack of long-term safety data being available. We need follow-up data of more than five years duration, possibly up to 10 years, because our previous experience with bare metal stents and drug-eluting stents has shown that we still see changes up to seven years. So we await long-term data for bioresorbable vascular scaffolds with regard to device behaviour and degradation patterns. We have seen cases where the stent has not yet degraded after three years and this could pose a problem for patients. Will the degradation occur as planned? Will the struts be apposed? Will we see late events such as thrombosis? All these are unanswered questions, he said.

Robert-Jan van Geuns, University of Rotterdam, The Netherlands, pointed to the potential advantages of using bioresorbable vascular scaffolds. In general, the data emerging are in line with the theory behind these devices: that vascular restoration therapy is going to heal vessels better than metallic stents. The long-term data has been demonstrated in non-complex patients, and we see that these patients do very well. We still need more data in more complex patients; there are now some non-randomised data available that are out to six-months, but we have to wait for the evidence in more complex patients before we can advocate the use of these devices in such patients, he said.


Contact: Isabelle Uzielli

Related medicine news :

1. CRF will Provide updates on several key cardiovascular trials at EuroPCR
2. New ESC-EACTS guidelines on myocardial revascularization to be released at EuroPCR 2014
3. EuroPCR 2014 showcases technological advances in complex cardiovascular interventions
4. Personalizing revascularization strategy for STEMI patients is vital, EuroPCR panel finds
5. EuroPCR 2014 examines whether science translates into practice with new session format
6. Study examines medicare use for Mohs micrographic surgery and surgical excision for skin cancer
7. Study examines drug regimen for the treatment of non-small cell lung cancer among older patients
8. Study examines adverse effects among different radiation therapies for prostate cancer
9. LA BioMeds Dr. John Tsuang examines effects of Ibudilast and metamphetamines
10. Study examines benefit of follow-up CT when abdominal ultrasound inconclusive
11. Research examines when benefits of screening mammography outweigh the harms for women in their 40s
Post Your Comments:
(Date:11/30/2015)... ... November 30, 2015 , ... ... Center is one of a select few plastic surgeons in the New York ... removal. , SculpSure™ is the world’s first heat-induced laser treatment for fat loss ...
(Date:11/30/2015)... (PRWEB) , ... November 30, 2015 , ... TransPack Volume ... X . Choose from scrolling web-styled transitions to wipes with blur & drop ... direction and more. Seamlessly transition from one clip to the next with TransPack's ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... their strategic partnership at the Radiological Society of North America (RSNA) 2015 ... global providers of cutting-edge dictation and speech-enabled documentation software, announced their partnership ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... In 2016, expected coding changes are likely to include new codes for spine ... not easy to understand the effects of code changes in musculoskeletal, radiology and ...
(Date:11/30/2015)... ... 30, 2015 , ... CTI Group (Holdings) Inc. (OTC:CTIG), a ... communication analytics, announced today that their Proteus® VoIP QMS solution now supports Skype ... Proteus® VoIP QMS (Quality Management System) does this by collecting the ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... , Nov. 30, 2015 NHS Supply ... 20 TrueBeam™ machines from Varian Medical Systems (NYSE: ... program to replace older machines and institute modern ... UK,s public hospitals. The order, placed in September, ... licenses for Varian,s RapidArc® and Eclipse™ software systems.    ...
(Date:11/30/2015)... , Nov. 30, 2015  Hanger, Inc. (NYSE: ... restatement of the terms of its previously announced consent ... to its $200,000,000 aggregate principal amount 7⅛% Senior Notes ... (i) the consent fees payable pursuant to the Consent ... Notes and (iii) the expiration date of the Consent ...
(Date:11/30/2015)... , Nov. 30, 2015  Precision Image ... services, is pleased to announce a dramatic expansion ... imaging services. Building on its ISO-9001:2008 certification for ... implemented comprehensive Core Lab protocols and procedures. This ... of research activities.  Their Core Lab services include ...
Breaking Medicine Technology: