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  • 1
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: p = 0.05); if two surgeons operated concurrently, THO could be performed 40 minutes quicker than THO or ILO performed by a single surgeon (p= 0.018). The mean initial intensive care unit stay was 2.9 days for ILO versus 1.7 days for THO (p= 0.014). The 30-day mortality was 5.1%; total in-hospital mortality was 7.1% with no difference for operation type. There were similar morbidity rates for the procedures. Kaplan-Meier survival analysis indicated no significant effect of surgical technique; there were no apparent advantages for either operation when patients were compared by tumor type or matched for stage. Hence THO is a valid alternative to ILO, particularly for stage II and III cancer.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé On a utilisé chez 10 patients un manchon gonflable contrôlé à travers la peau et inséré autour du greffon pour changer le diamètre d'un shunt portacave en H. Gonfler le manchon diminue le diamètre du shunt en augmentant la pression porte ce qui réduit le débit du shunt. L'utilisation du shunt a été cliniquement décisive chez 3 des 7 patients ayant survécu à long terme. La réduction du diamètre du shunt a amélioré l'état clinique de 2 patients ayant une encéphalopathie, et la réouverture du shunt fermé par ce moyen a diminué l'ascite chez un troisième. Des modifications du débit porte après gonflage du manchon étaient toujours visibles à 6 mois par échographie et Doppler. On conclut qu'il faut continuer à expérimenter ce type de shunt portocave à débit variable.
    Abstract: Resumen Hemos desarrollado un manguito y reservorio de implantación subcutánea, el cual, mediante control percutáneo, permite modificar el diámetro de los “shunts” portacava en H; ha sido utilizado en 10 pacientes. Al inflar el manguito se comprime el injerto en H, con lo cual se aumenta la presión portal y se reduce el flujo a través del “shunt.” El uso del manguito ha sido de beneficio clínico en 3 de 7 sobrevivientes a largo plazo. La comprensión del “shunt” mejoró el estado clínico de 2 pacientes con encefalopatía, y su reapertura mejoró la ascitis en el tercer paciente. Estudios con ultrasonido duplex y ultrasonido profundo han demostrado una alteración en el flujo portal después de inflar el manguito a los 6 meses. Nuestra conclusión es que se justifica continuar desarrollando esta prótesis que permite establecer un “shunt” portacava en H controlado.
    Notes: Abstract A percutaneously-controlled inflatable cuff which can change the diameter of a portacaval H-graft has been developed and used in 10 patients. When inflated, the cuff narrows the H-graft to increase portal pressure and reduce shunting. Use of the cuff has been of clinical significance in 3 of 7 long-term surviving patients. Narrowing the shunt improved the clinical state in 2 patients with encephalopathy, and reopening a closed shunt improved ascites in the third patient. Duplex ultrasound and deep Doppler have demonstrated an alteration of hepatic portal blood flow following inflation of the cuff after 6 months. It is concluded that further development of this controlled portacaval H-graft is warranted.
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  • 3
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2016-05-14
    Description: The connectivity of marine organisms among habitat patches has been dominated by two independent paradigms with distinct conservation strategies. One paradigm is the dispersal of larvae on ocean currents, which suggests networks of marine reserves. The other is the demersal migration of animals from nursery to adult habitats, requiring the conservation of connected ecosystem corridors. Here, we suggest that a common driver – wave exposure – links larval and demersal connectivity across the seascape. To study the effect of linked connectivities on fish abundance at reefs, we parameterize a demographic model for The Bahamas seascape using maps of habitats, empirically forced models of wave exposure and spatially realistic 3-dimensional hydrological models of larval dispersal. The integrated empirical-modeling approach enabled us to study linked-connectivity on a scale not currently possible by purely empirical studies. We find sheltered environments not only provide greater nursery habitat for juvenile fish but larvae spawned on adjacent reefs have higher retention, thereby creating a synergistic increase in fish abundance. Uniting connectivity paradigms to consider all life-stages simultaneously can help explain the evolution of nursery habitat use and simplifies conservation advice: reserves in sheltered environments have desirable characteristics for biodiversity conservation and can support local fisheries through adult spillover. This article is protected by copyright. All rights reserved.
    Print ISSN: 0012-9658
    Electronic ISSN: 1939-9170
    Topics: Biology
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