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The Carpentier-Edwards Perimount Magna mitral valve bioprosthesis: intermediate-term efficacy and durability.

Overview of attention for article published in Journal of Cardiothoracic Surgery, January 2016
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Title
The Carpentier-Edwards Perimount Magna mitral valve bioprosthesis: intermediate-term efficacy and durability.
Published in
Journal of Cardiothoracic Surgery, January 2016
DOI 10.1186/s13019-016-0412-4
Pubmed ID
Authors

Loor, Gabriel, Schuster, Andres, Cruz, Vincent, Rafael, Aldo, Stewart, William J, Diaz, James, McCurry, Kenneth

Abstract

The Carpentier-Edwards Perimount Magna mitral valve bioprosthesis (Edwards Lifesciences, Irvine, CA) is a low-profile version of the earlier Perimount valve that uses the ThermaFix process for enhanced calcium removal. The Magna valve has been in use since 2008, yet no publication, until now, has verified its intermediate-term safety and efficacy. From 2008 through 2011 (our 4-year study period), 70 Magna valves were implanted in the mitral position at a single institution (the Cleveland Clinic). Echocardiograms were prospectively interpreted. For this study, we reviewed patients' charts; endpoints included hemodynamic measurements, in-hospital morbidity and mortality, valve-related events, resource utilization, and 5-year survival rates. The mean patient age was 68 years; 43 % of the patients had New York Heart Association (NYHA) class III or IV disease, and 51.4 % had moderately severe, or worse, mitral regurgitation (MR). For 43 % of the patients, the Magna valve implantation was a reoperation. For 83 %, the Magna valve implantation also included a concomitant cardiac procedure. The median survival rate was 4.7 years and 90 % of patients were free from significant structural valve degeneration at 5 years. Preoperative atrial fibrillation, ischemic MR, intraaortic balloon pump placement, cardiogenic shock, cardiac arrest, and renal failure were associated with increased mortality. Right ventricular systolic pressure decreased from 50 mmHg preoperatively to 40 mmHg postoperatively, according to our matched-pair analysis (P = 0.003). Per their final echocardiogram during our study period, 98 % of surviving patients had trivial or no MR, one patient had mild MR, and one patient had severe MR. Our 5-year experience indicates that the Magna valve offers excellent intermediate-term durability and substantial echocardiographic improvement; its low-profile design make it ideal for reoperations and for concomitant cardiac procedures, including valve replacement.

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Mendeley readers

The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 33 100%

Demographic breakdown

Readers by professional status Count As %
Other 8 24%
Student > Bachelor 5 15%
Researcher 4 12%
Student > Postgraduate 4 12%
Student > Doctoral Student 2 6%
Other 5 15%
Unknown 5 15%
Readers by discipline Count As %
Medicine and Dentistry 16 48%
Agricultural and Biological Sciences 3 9%
Pharmacology, Toxicology and Pharmaceutical Science 2 6%
Biochemistry, Genetics and Molecular Biology 1 3%
Decision Sciences 1 3%
Other 3 9%
Unknown 7 21%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 January 2016.
All research outputs
#6,070,125
of 7,060,796 outputs
Outputs from Journal of Cardiothoracic Surgery
#188
of 295 outputs
Outputs of similar age
#263,318
of 319,809 outputs
Outputs of similar age from Journal of Cardiothoracic Surgery
#13
of 21 outputs
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