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Frank B Niessen - One of the best experts on this subject based on the ideXlab platform.

  • prevalence of rupture in poly implant prothese silicone breast implants recalled from the European Market in 2010
    Plastic and Reconstructive Surgery, 2012
    Co-Authors: Maria C Maijers, Frank B Niessen
    Abstract:

    Background: Known complications of silicone breast implants are rupture and silicone leakage, complications that are related not only to generation and implant age but also to the manufacturer. Implants from the French manufacturer Poly Implant Prothese showed more rupture than expected and were banned from the European Market in 2010. Clinics in Europe recalled their patients, but prevalence of rupture in these implants has not been previously reported. Methods: All women who underwent breast augmentation in 2000 and 2001 in the Jan van Goyen Clinic, Amsterdam, The Netherlands, were informed about concerns regarding the quality of their implants. Medical records were used to trace manufacturer and implantation specifics. One hundred twelve women with proven Poly Implant Prothese implants were enrolled in this study. All women underwent physical examination and magnetic resonance imaging and were interviewed for complaints to determine the prevalence of symptomatic and asymptomatic rupture. Results: Two hundred twenty-four Poly Implant Prothese implants were evaluated with a mean implant age of 122 months. Of these 224 implants, 54 had ruptured. Magnetic resonance imaging showed that 33 percent of women had at least one ruptured implant. There was no significant difference in rupture rate of implants manufactured in 2000 and 2001. Conclusions: One third of the women who had undergone breast augmentation with Poly Implant Prothese implants were shown to have at least one ruptured implant after 10 years; 45.9 percent had bilateral rupture and 13.5 percent had extracapsular leakage. These were mostly asymptomatic ruptures. The rupture prevalence rate for Poly Implant Prothese implants after 10 years is 24 percent. Copyright © 2012 by the American Society of Plastic Surgeons.

  • Prevalence of rupture in poly implant prothèse silicone breast implants, recalled from the European Market in 2010
    Plastic and Reconstructive Surgery, 2012
    Co-Authors: Maria C Maijers, Frank B Niessen
    Abstract:

    BACKGROUND: Known complications of silicone breast implants are rupture and silicone leakage, complications that are related not only to generation and implant age but also to the manufacturer. Implants from the French manufacturer Poly Implant Prothèse showed more rupture than expected and were banned from the European Market in 2010. Clinics in Europe recalled their patients, but prevalence of rupture in these implants has not been previously reported. METHODS: All women who underwent breast augmentation in 2000 and 2001 in the Jan van Goyen Clinic, Amsterdam, The Netherlands, were informed about concerns regarding the quality of their implants. Medical records were used to trace manufacturer and implantation specifics. One hundred twelve women with proven Poly Implant Prothèse implants were enrolled in this study. All women underwent physical examination and magnetic resonance imaging and were interviewed for complaints to determine the prevalence of symptomatic and asymptomatic rupture. RESULTS: Two hundred twenty-four Poly Implant Prothèse implants were evaluated with a mean implant age of 122 months. Of these 224 implants, 54 had ruptured. Magnetic resonance imaging showed that 33 percent of women had at least one ruptured implant. There was no significant difference in rupture rate of implants manufactured in 2000 and 2001. CONCLUSIONS: One third of the women who had undergone breast augmentation with Poly Implant Prothèse implants were shown to have at least one ruptured implant after 10 years; 45.9 percent had bilateral rupture and 13.5 percent had extracapsular leakage. These were mostly asymptomatic ruptures. The rupture prevalence rate for Poly Implant Prothèse implants after 10 years is 24 percent. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Maria C Maijers - One of the best experts on this subject based on the ideXlab platform.

  • prevalence of rupture in poly implant prothese silicone breast implants recalled from the European Market in 2010
    Plastic and Reconstructive Surgery, 2012
    Co-Authors: Maria C Maijers, Frank B Niessen
    Abstract:

    Background: Known complications of silicone breast implants are rupture and silicone leakage, complications that are related not only to generation and implant age but also to the manufacturer. Implants from the French manufacturer Poly Implant Prothese showed more rupture than expected and were banned from the European Market in 2010. Clinics in Europe recalled their patients, but prevalence of rupture in these implants has not been previously reported. Methods: All women who underwent breast augmentation in 2000 and 2001 in the Jan van Goyen Clinic, Amsterdam, The Netherlands, were informed about concerns regarding the quality of their implants. Medical records were used to trace manufacturer and implantation specifics. One hundred twelve women with proven Poly Implant Prothese implants were enrolled in this study. All women underwent physical examination and magnetic resonance imaging and were interviewed for complaints to determine the prevalence of symptomatic and asymptomatic rupture. Results: Two hundred twenty-four Poly Implant Prothese implants were evaluated with a mean implant age of 122 months. Of these 224 implants, 54 had ruptured. Magnetic resonance imaging showed that 33 percent of women had at least one ruptured implant. There was no significant difference in rupture rate of implants manufactured in 2000 and 2001. Conclusions: One third of the women who had undergone breast augmentation with Poly Implant Prothese implants were shown to have at least one ruptured implant after 10 years; 45.9 percent had bilateral rupture and 13.5 percent had extracapsular leakage. These were mostly asymptomatic ruptures. The rupture prevalence rate for Poly Implant Prothese implants after 10 years is 24 percent. Copyright © 2012 by the American Society of Plastic Surgeons.

  • Prevalence of rupture in poly implant prothèse silicone breast implants, recalled from the European Market in 2010
    Plastic and Reconstructive Surgery, 2012
    Co-Authors: Maria C Maijers, Frank B Niessen
    Abstract:

    BACKGROUND: Known complications of silicone breast implants are rupture and silicone leakage, complications that are related not only to generation and implant age but also to the manufacturer. Implants from the French manufacturer Poly Implant Prothèse showed more rupture than expected and were banned from the European Market in 2010. Clinics in Europe recalled their patients, but prevalence of rupture in these implants has not been previously reported. METHODS: All women who underwent breast augmentation in 2000 and 2001 in the Jan van Goyen Clinic, Amsterdam, The Netherlands, were informed about concerns regarding the quality of their implants. Medical records were used to trace manufacturer and implantation specifics. One hundred twelve women with proven Poly Implant Prothèse implants were enrolled in this study. All women underwent physical examination and magnetic resonance imaging and were interviewed for complaints to determine the prevalence of symptomatic and asymptomatic rupture. RESULTS: Two hundred twenty-four Poly Implant Prothèse implants were evaluated with a mean implant age of 122 months. Of these 224 implants, 54 had ruptured. Magnetic resonance imaging showed that 33 percent of women had at least one ruptured implant. There was no significant difference in rupture rate of implants manufactured in 2000 and 2001. CONCLUSIONS: One third of the women who had undergone breast augmentation with Poly Implant Prothèse implants were shown to have at least one ruptured implant after 10 years; 45.9 percent had bilateral rupture and 13.5 percent had extracapsular leakage. These were mostly asymptomatic ruptures. The rupture prevalence rate for Poly Implant Prothèse implants after 10 years is 24 percent. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Helga Willer - One of the best experts on this subject based on the ideXlab platform.

Markus Rieder - One of the best experts on this subject based on the ideXlab platform.

  • Assessing Feasibility of Transport Megaprojects: Swissmetro European Market Study
    Transportation Research Record, 2007
    Co-Authors: Andrew Nash, Stefan Buchmueller, Ulrich Weidmann, Markus Rieder
    Abstract:

    Results of the Swissmetro European Market Study are presented. Swissmetro is a proposed high-speed passenger ground transportation system that would operate magnetically levitated trains in underground tunnels with reduced air pressure by using linear motor technology. The Market study considered the Market feasibility of constructing Swissmetro on potential European corridors. It evaluated technology, Market conditions, European policy, investment costs, and risks associated with the project. The study conclusion was that there is not sufficient Market potential for the Swissmetro system in European long-distance transport. The main problems with Swissmetro identified in the study were the long time necessary to bring the technology to commercial deployment; the lack of obvious corridors (most high-demand corridors will be served by high-speed rail by 2020); strong competition from other modes, such as air and high-speed rail; European Union policy of supporting an interoperable system of rail lines; Swi...

  • ASSESSING THE FEASIBILITY OF TRANSPORT MEGA-PROJECTS: SWISSMETRO European Market STUDY
    2007
    Co-Authors: Andrew Nash, Stefan Buchmueller, Ulrich Weidmann, Markus Rieder
    Abstract:

    ABSTRACT This paper presents the results of the Swissmetro European Market Study. Swissmetro is a proposed high-speed passenger ground transportation system that would operate magnetically levitated trains in underground tunnels with reduced air pressure using linear motor technology. The Market study considered the Market feasibility of constructing Swissmetro on potential European corridors. It evaluated technology, Market conditions, European policy, investment costs and risks associated with the project. The study conclusion was that there is not sufficient Market potential for the Swissmetro system in European long-distance transport. The main problems with Swissmetro identified in the study were: the long time necessary to bring the technology to commercial deployment, the lack of obvious corridors (most high demand corridors will be served by high-speed rail by 2020), strong competition from other modes (flying, HSR), European Union policy of supporting an interoperable system of rail lines, Swissmetro’s high capital and operating costs – and the risk that these costs may be significantly underestimated and Swissmetro’s very long construction time.

Diana Schaack - One of the best experts on this subject based on the ideXlab platform.