Une nouvelle pompe cardiaque limite les risques d'AVC
Photos: Pierre Dubois, multimédia, CUSMAlors que nous nous apprêtons à célébrer la Saint-Valentin, un nouveau type de dispositif d’assistance ventriculaire qui pompe le sang en comprimant de manière rythmée l’aorte a été implanté chez un patient, au Centre universitaire de santé McGill (CUSM). Le nouveau dispositif réduit les risques de coagulation du sang susceptible de provoquer un accident vasculaire cérébral (AVC) du fait qu’il est disposé « autour » de l’aorte, plutôt que d’être directement implanté dans le système circulatoire, comme c’est le cas des dispositifs d’assistance ventriculaire conventionnels. L’usage de cette nouvelle pompe s’inscrit dans le cadre d’essais cliniques menés au CUSM. C’est la première fois que l’on utilise un tel appareil au Canada.
Comme le souligne le Dr Renzo Cecere, directeur du Programme d'assistance ventriculaire mécanique du CUSM et directeur chirurgical du Programme d'insuffisance cardiaque et de transplantation cardiaque du CUSM : « En l’absence de donneur convenable, les cœurs artificiels constituent le seul choix qui s’offre aux patients souffrant d’une grave insuffisance cardiaque et pour lesquels les thérapies standard s’avèrent inefficaces. » Si d’importants progrès ont été réalisés au cours de la dernière décennie en matière de cœurs artificiels, jusqu’à présent, dans la plupart des cas, il fallait implanter ceux-ci, par voie chirurgicale, dans le système circulatoire pour qu’ils puissent pomper du sang dans l’ensemble de l’organisme.
Comme le mentionne le Dr Cecere, qui est également professeur agrégé de chirurgie à l’Université McGill : « Lorsque le sang entre en contact avec quelque chose qui ne fait pas naturellement partie du corps humain, comme un cœur artificiel, il a tendance à se coaguler, ce qui peut avoir de graves complications, au rang desquelles figure l’AVC, la troisième principale cause de décès au Canada. » La nouvelle pompe, appelée « C-Pulse », contourne ce problème du fait que plutôt que d’être implantée directement dans le cœur, elle est disposée autour de celui-ci, ou plus spécifiquement, autour de l’aorte, c’est-à-dire l’artère qui fait circuler le sang du cœur vers le reste du corps. Un petit ballon situé à l’intérieur de l’appareil se gonfle et se dégonfle, pour faire circuler le sang au travers du cœur. Aucune incision n’a à être pratiquée sur le muscle cardiaque lui-même non plus que sur quelque vaisseau majeur que ce soit lors de sa mise en place, ce qui confère à cette chirurgie un caractère moins invasif; en outre, les patients n’ont pas besoin de prendre de médicaments anticoagulants, comme de l’héparine ou de la warfarine, après la chirurgie.
Comme le souligne Lauza Légere, de Laval : « Cette nouvelle pompe a indiscutablement amélioré ma qualité de vie. Avant l’intervention chirurgicale, je ne pouvais même pas tenir de conversation normale. Je devais m’arrêter en plein milieu d’une phrase tout simplement pour reprendre mon souffle. » Du fait de l’état de santé général de Mme Légere, celle-ci ne pouvait se voir implanter d’appareil d’assistance ventriculaire conventionnel et ses médicaments ne lui étaient plus de quelque secours que ce soit.
Les problèmes d’insuffisance cardiaque en signifient pas forcément que le cœur cesse de battre mais plutôt que le cœur n’est pas en mesure de répondre aux besoins de l’organisme. Par conséquent, certains patients peuvent même se débrancher de la pompe C-Pulse pendant de brèves périodes afin, à titre d’exemple, de prendre une douche, de se reposer et de faire d’autres activités. Cette caractéristique confère ultimement au patient une meilleure qualité de vie. Comme c’est le cas d’autres appareils d’assistance ventriculaire, la pompe C-Pulse peut permettre aux patients souffrant d’insuffisance cardiaque grave de survivre en attendant une transplantation ou qu’une solution plus durable soit trouvée à leur état.
On estime que quelque 500 000 Canadiennes et Canadiens souffrent d’insuffisance cardiaque et que 50 000 nouveaux patients se voient poser un tel diagnostic tous les ans. L’an dernier, quelque 150 transplantations cardiaques ont été réalisées à travers le Canada et près de 50 de celles-ci se sont déroulées au Québec.
Sur le Web :
www.cusm.ca
www.sunshineheart.com/c-pulse
Television
News Now
CHCH (E! Canada - Hamilton, ON) - 02/14/11
Taz: CANADIAN DOCTORS ARE TESTING A HEART PUMP THAT COULD HELP THOUSANDS OF PEOPLE.
Article
New heart pump cuts risk of stroke
CTV.ca - 02/14/11
MONTREAL — A Laval woman has become the first Canadian to receive a revolutionary new heart device. Lauza Legere was fitted with the C-Pulse cuff, which fits around the aorta to pump oxygen through the body. Legere had a heart attack in August, and had the device implanted in December, as part of a clinical trial underway at the McGill University Health Centre.
Article
New heart pump aims to cut stroke risk
Global TV News Top Stories - Bradley Bouzane - 02/14/11
Bradley Bouzane, Postmedia News: Monday, February 14, 2011 12:08 AM Dr. Renzo Cecere and a medical team implanting the device on Lauza Legere. Photo Credit: McGill University Health Centre, McGill University Health Centre The C-Pulse Cuff is placed around the ascending aorta, above the aortic valve. U.S.
Article
New heart pump could cut stroke risk
CBC | Top Stories News - 02/14/11
In December, doctors at McGill University Health Centre installed a C-Pulse cuff on 54-year-old Lauza Legere's aorta to pump oxygen through her body. The cuff moves blood by rhythmically squeezing her aorta, something Legere's body wasn't doing properly since her August heart attack. Dr. Renzo Cecere (centre) of McGill University Health Centre in Montreal implants a C-Pulse heart pump in Lauza Legere at the Royal Victoria Hospital on Dec.
Print
New heart pump being tested in Canada, considered bridge to transplant
Moose Jaw Times-Herald - 02/14/11
Published on February 14, 2011 Topics : McGill University Health Centre , Pulse Heart Assist System , Canada , MONTREAL , Laval MONTREAL - Lauza Legere's heart is beating strong this Valentine's Day but not because she's been poked with Cupid's arrow. She's helping test the C-Pulse Heart Assist System, a new device that rhythmically squeezes her aorta and pumps blood to her damaged heart. "I feel much better than before," Legere said in a telephone interview, explaining that before she got the pump it was hard to even take a breath.
Article
Heart pump provides bridge to transplant
Kelowna Daily Courier - Nelson Wyatt, The Canadian Press - 02/14/11
New heart pump being tested in Canada, considered bridge to transplant By Nelson Wyatt, The Canadian Press 2011-02-13 MONTREAL - Lauza Legeres heart is beating strong this Valentines Day but not because shes been poked with Cupids arrow. Shes helping test the C-Pulse Heart Assist System, a new device that rhythmically squeezes her aorta and pumps blood to her damaged heart. "I feel much better than before," Legere said in a telephone interview, explaining that before she got the pump it was hard to even take a breath.
New heart pump being tested in Canada, considered bridge to transplant | National News | Kamloops Daily News
The Daily News >> Canada News - 02/14/11
Dr. Renzo Cecere, director of the Mechanical Heart Assist Program at the McGill University Health Centre (centre) in Montreal, implants a C-Pulse Heart Assist System in a patient at the Royal Victoria Hospital on Dec. 21, 2010. The device helps damaged hearts pump blood and reduces the risk of stroke and clots. THE CANADIAN PRESS/HO- McGill University Health Centre MONTREAL - Lauza Legere's heart is beating strong this Valentine's Day but not because she's been poked with Cupid's arrow.
February 14, 2011 New heart pump being tested in Canada, considered bridge to transplant
Truro Daily News - 02/14/11
New heart pump being tested in Canada, considered bridge to transplant Published on February 14, 2011 Topics : McGill University Health Centre , Pulse Heart Assist System , Canada , MONTREAL , Laval MONTREAL - Lauza Legere's heart is beating strong this Valentine's Day but not because she's been poked with Cupid's arrow. She's helping test the C-Pulse Heart Assist System, a new device that rhythmically squeezes her aorta and pumps blood to her damaged heart.
New heart pump being tested in Canada, considered bridge to transplant
Cape Breton Post - Nelson Wyatt - 02/14/11
get the oxygen that I wasn't able to have." Dr. Renzo Cecere of the McGill University Health Centre says Legere is the first person in Canada to get the device, which reduces blood
Article
New heart pump being tested in Canada
The Report. Alberta edition - 02/14/11
get the oxygen that I wasn't able to have." Dr. Renzo Cecere of the McGill University Health Centre says Legere is the first person in Canada to get the device, which reduces blood
Article
Nouvelle pompe cardiaque
Le Quotidien - 02/14/11
d'avoir." Le docteur Renzo Cecere, du Centre universitaire de santé de l'Université McGill (CUSM), à Montréal, a révélé que Mme Legere était la première personne au Canada à bénéficier
Article
Berries battle Parkinson's
Winnipeg Free Press - 02/14/11
task since. The heart-assisting device is currently part of a clinical trial at the McGill University Health Centre in Montreal. "I am a lot better than before," Legere said. "Before, I was always
Article
Heart pump tested Device considered bridge to transplant
The Thunder Bay Chronicle-Journal - 02/14/11
get the oxygen that I wasn't able to have." Dr. Renzo Cecere of the McGill University Health Centre says Legere is the first person in Canada to get the device, which reduces blood
Article
New heart device reduces stroke risk Clinical trial
National Post - Bradley Bouzane - 02/14/11
cuff in December and finding a fresh breath has been a much easier task since. The heart-assisting device is currently part of a clinical trial at the McGill University Health Centre in Montreal
Article
New pump gives her heart a hand
Hamilton Spectator - 02/14/11
Quebec woman first in Canada to test new device heart pump Dr. Renzo Cecere, director of the Mechanical Heart Assist Program at the McGill University Health Centre in Montreal, implants a C-Pulse Heart Assist System in a patient. The device helps damaged hearts pump blood and reduces the risk of stroke and clots. The Canadian Press Loading... MONTREAL Lauza Legere’s heart is beating strong this Valentine’s Day but not because she’s been poked with Cupid’s arrow.
Article
New heart pump could reduce stroke risk
Toronto Sun - 02/14/11
MONTREAL - In what?s being billed as a Canadian first, the McGill University Health Centre has installed a revolutionary heart pump that it says can reduce or eliminate the risk of stroke in patients who have suffered heart failure. The C-Pulse squeezes the heart?s aorta vessel from the outside, as opposed to traditional pumps whose presence inside the heart can cause potentially deadly blood clotting. The C-Pulse was implanted on Dec. 21 into Lauza Legere, a woman from suburban Montreal who was suffering from a weak heart. Dr.
New heart pump could reduce stroke risk
Winnipeg Sun - 02/14/11
The C-Pulse heart pump was designed in New Zealand and was installed in a Canadian patient for the first time late last year. (McGill University Health Centre) MONTREAL - In what’s being billed as a Canadian first, the McGill University Health Centre has installed a revolutionary heart pump that it says can reduce or eliminate the risk of stroke in patients who have suffered heart failure.
New heart pump being tested in Canada, considered bridge to transplant
Squamish Chief - 02/14/11
Renzo Cecere of the McGill University Health Centre says Legere is the first person in Canada to get the device, which reduces blood clots that can cause strokes. He is currently conducting trials on the pump and hopes to implant 12 devices in the next 18 months. ''There are probably thousands of patients who might benefit from a pump like this," said the doctor, who is director of the Mechanical Heart Assist Program and surgical director of the MUHC's transplant program.
Une nouvelle pompe cardiaque qui limite les risques dAVC
24 Heures Montreal - 02/14/11
Le Dr Renzo Cecere du CUSM est le seul chirurgien à avoir implanté cette nouvelle pompe cardiaque limitant les risques d'AVC au Canada. Photo : Sébastien St-Jean / 24H Le Centre universitaire de santé McGill (CUSM) vient de réaliser une première au Canada en implantant dans le corps d’une patiente, un tout nouveau dispositif d’assistance cardiaque permettant de réduire les risques d’accident vasculaire cérébral (AVC).
Article
C-Pulse Cuff, New Heart Device Is Very Promising
MedIndia - 02/15/11
Lauza Legere is the first Canadian to be fitted with a novel heart- assisting device called the C-Pulse Cuff, which is part of a clinical trial at The McGill University Health Centre in Montreal. The device was implanted in December and can effectively reduce the risk of stroke. The C-Pulse is implanted outside the aorta, unlike other heart pumps which are implanted inside the aorta for a short period of time. A cuff is also sewn around the critical heart valve.
Article
Innovative pump may prevent strokes
Kingston Whig-Standard - 02/15/11
MONTREAL -- In what's being billed as a Canadian first, the McGill University Health Centre has installed a revolutionary heart pump that it says can reduce or eliminate the risk of stroke in patients who have suffered heart failure. The C-Pulse squeezes the heart's aorta vessel from the outside, as opposed to traditional pumps whose presence inside the heart can cause potentially deadly blood clotting. The C-Pulse was implanted on Dec. 21 into Lauza Legere, a woman from suburban Montreal who was suffering from a weak heart. Dr.
Article
Innovative pump may prevent strokes
Brantford Expositor - 02/15/11
MONTREAL -In what's being billed as a Canadian first, the McGill University Health Centre has installed a revolutionary heart pump that it says can reduce or eliminate the risk of stroke in patients who have suffered heart failure. The C-Pulse squeezes the heart's aorta vessel from the outside, as opposed to traditional pumps whose presence inside the heart can cause potentially deadly blood clotting. The C-Pulse was implanted on Dec. 21 into Lauza Legere, a woman from suburban Montreal who was suffering from a weak heart. Dr.
Article
Internet
Une pompe cardiaque révolutionnaire
Canoe - Agence QMI - 02/15/11
Apprenez les nouvelles dès qu'elles se produisent.. Dans le cadre d’un essai clinique, le chirurgien Renzo Cecere a équipé Lauza Légere d’une nouvelle pompe cardiaque le 21 décembre 2010 au terme d’une opération d’à peine deux heures à l’hôpital Royal Victoria. Aucun contact avec le sang Le principe de ce dispositif révolutionnaire est simple. Un petit ballon en plastique, relié à une pompe, est fixé à l’aide d’un brassard sur l’artère aorte qui alimente le corps en sang oxygéné.
Article
Une pompe cardiaque pour éviter la transplantation
MSN Canada - 02/14/11
Cecere. La Presse Canadienne MONTRÉAL - En cette journée de la Saint-Valentin, le coeur de Lauza Legere trépide, mais ce n'est pas parce qu'elle vient de croiser l'amour de sa vie. Plutôt, elle participe aux essais cliniques d'un dispositif d'assistance ventriculaire qui contracte l'aorte et pompe du sang vers son coeur endommagé. «Je me sens beaucoup mieux qu'avant, parce que je suis beaucoup moins essoufflée», a confié Mme Legere, lors d'une entrevue téléphonique à La Presse Canadienne.
Article
New heart pump being tested in Canada, considered bridge to transplant
Macleans Online - Nelson Wyatt - 02/14/11
MONTREAL - Lauza Legere's heart is beating strong this Valentine's Day but not because she's been poked with Cupid's arrow. She's helping test the C-Pulse Heart Assist System, a new device that rhythmically squeezes her aorta and pumps blood to her damaged heart. "I feel much better than before," Legere said in a telephone interview, explaining that before she got the pump it was hard to even take a breath. "I stopped every two or three words because I was out of breath. I wasn't able to walk.
Canadians Can Take Heart: New Pump Reduces Stroke Risk
ECanadaNow - Staff - 02/14/11
The new C-pulse cuff, on the other hand, is attached outside the aorta, assisting the body’s natural pumping process, thereby reducing strain but still limiting the risk of stroke significantly. The first Canadian to receive the C-pulse cuff was Lauza Legere, who received the device in December as part of the clinical trials at McGill University Health Centre in Montreal. Legere’s response has been overwhelmingly positive, and she says that her symptoms of strain and fatigue have been greatly reduced since the surgery.
Radio
New heart pump being tested in Canada, considered bridge to transplant
CJAD 800 - 02/14/11
Nelson Wyatt, The Canadian Press Dr. Renzo Cecere, director of the Mechanical Heart Assist Program at the McGill University Health Centre (centre) in Montreal, implants a C-Pulse Heart Assist System in a patient at the Royal Victoria Hospital on Dec. 21, 2010. The device helps damaged hearts pump blood and reduces the risk of stroke and clots. THE CANADIAN PRESS/HO- McGill University Health Centre" MONTREAL - Lauza Legere's heart is beating strong this Valentine's Day but not because she's been poked with Cupid's arrow.
Article