Featured Research

from universities, journals, and other organizations

First human totally endoscopic aortic valve replacements reported

Date:
March 11, 2014
Source:
American Association for Thoracic Surgery (AATS)
Summary:
Surgeons in France have successfully replaced the aortic valve in two patients without opening the chest during surgery. The procedure, using totally endoscopic aortic valve replacement (TEAVR), shows potential for improving quality of life of heart patients by offering significantly reduced chest trauma.

Surgeons in France have successfully replaced the aortic valve in two patients without opening the chest during surgery. The procedure, using totally endoscopic aortic valve replacement (TEAVR), shows potential for improving quality of life of heart patients by offering significantly reduced chest trauma. It is described in The Journal of Thoracic and Cardiovascular Surgery, an official publication of the American Association for Thoracic Surgery.

Endoscopic surgery is already used by cardiovascular surgeons for procedures such as atrial septal defect repair and coronary artery bypass grafting. This leads to faster recovery time and less pain, which improves patients’ quality of life.

TEAVR had not been feasible previously because of the currently available designs of stented tissue valves. The recent advent of sutureless bioprostheses mounted on a compressible self-expanding nitinol (nickel titanium) stent, was one of the key factors enabling the surgical team to perform this procedure. Implantation required less than 45 minutes in either patient. Sutureless substitutes are not yet available for the other cardiac valves, like the mitral valve.

“In our institution, we began by adopting the mini-sternotomy technique, involving a small incision through the sternum, as routine. We then transitioned to the right mini-thoracotomy approach, involving a small incision through the thorax, first under direct view, then with an endoscopic camera. Finally we adopted a totally endoscopic technique,” explains lead author Marco Vola, MD, PhD, of the Department of Cardiovascular Surgery, Centre Hospitalier Universitaire de Saint-Etienne, France.

“It is important to note that when performing TEAVR, a quick and safe conversion to mini-thoracotomy under direct view can be made if circumstances demand. This would still offer significantly reduced chest trauma,” he adds.

In other fields, totally endoscopic surgery involved longer clamping and cardiopulmonary bypass (CPB) times during the learning curve. The investigators believe that clamping and CPB times were acceptable and that the learning curve could be shorter than reported for totally endoscopic coronary artery bypass grafting.

Enhancements such as endoscopic sizers, dedicated instruments for decalcification, and second-generation sutureless bioprostheses to simplify implantation, could improve the procedure further, Dr. Vola and his colleagues comment. Last but not least, surgical robots may offer additional benefits.

“These first procedures show that totally endoscopic sutureless aortic valve replacement is technically feasible. Further clinical experience and technical development are necessary to shorten operation times and to assess further the potential postoperative benefits of TEAVR,” concludes Vola.


Story Source:

The above story is based on materials provided by American Association for Thoracic Surgery (AATS). Note: Materials may be edited for content and length.


Journal Reference:

  1. Marco Vola, Jean-Franηois Fuzellier, Bertrand Chavent, Ambroise Duprey. First human totally endoscopic aortic valve replacement: An early report. The Journal of Thoracic and Cardiovascular Surgery, 2014; 147 (3): 1091 DOI: 10.1016/j.jtcvs.2013.10.010

Cite This Page:

American Association for Thoracic Surgery (AATS). "First human totally endoscopic aortic valve replacements reported." ScienceDaily. ScienceDaily, 11 March 2014. <www.sciencedaily.com/releases/2014/03/140311162815.htm>.
American Association for Thoracic Surgery (AATS). (2014, March 11). First human totally endoscopic aortic valve replacements reported. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2014/03/140311162815.htm
American Association for Thoracic Surgery (AATS). "First human totally endoscopic aortic valve replacements reported." ScienceDaily. www.sciencedaily.com/releases/2014/03/140311162815.htm (accessed September 22, 2014).

Share This



More Health & Medicine News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Liberia Pleads for Help to Fight Ebola

Liberia Pleads for Help to Fight Ebola

AP (Sep. 22, 2014) — Liberia's finance minister is urging the international community to quickly follow through on pledges of cash to battle Ebola. Bodies are piling up in the capital Monrovia as the nation awaits more help. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Ebola Doctor Says Border Controls Critical

Ebola Doctor Says Border Controls Critical

AP (Sep. 22, 2014) — A Florida doctor who helped fight the expanding Ebola outbreak in West Africa says the disease can be stopped, but only if nations quickly step up their response and make border control a priority. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Global Ebola Aid Increasing But Critics Say It's Late

Global Ebola Aid Increasing But Critics Say It's Late

Newsy (Sep. 21, 2014) — More than 100 tons of medical supplies were sent to West Africa on Saturday, but aid workers say the global response is still sluggish. Video provided by Newsy
Powered by NewsLook.com
Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) — Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins