The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform

Dieter Hammel - One of the best experts on this subject based on the ideXlab platform.

  • Pheochromocytomas with extension into central vascular structures
    The Annals of thoracic surgery, 1996
    Co-Authors: J. Rötker, Frank Oberpennig, Hans H. Scheld, Lothar Hertle, G. Knichwitz, Dieter Hammel
    Abstract:

    Two cases of pheochromocytomas, 1 with extension into the inferior vena Cava and the second with involvement of the right atrium, are reported. Both tumors were resected in toto, 1 using inferior to superior vena Cava Vein-to-Vein bypass and the second with the aid of hypothermic circulatory arrest. Both patients are free of recurrences or metastasis 20 and 24 month postoperatively.

Alper Toker - One of the best experts on this subject based on the ideXlab platform.

  • Emergency reconstruction of superior vena Cava Vein following biopsy of mediastinal lymphoma
    Turkish Journal of Thoracic and Cardiovascular Surgery, 2012
    Co-Authors: Alper Toker
    Abstract:

    Elli iki yasindaki kadin hasta invaziv anterior mediastinal kitle ile basvurdu. Mediastinotomide frozen kesit inceleme lenfoma olarak yorumlandi. Ameliyat sonrasi birinci gun sabah ani oksurukle gogus dreninden masif kanama basladi. Hasta acil olarak ameliyathaneye alindi ve takiben median sternotomi yapildi. Superior vena Cavadaki biyopsi alanindan farkli bir bolgeden kaynaklanan masif kanama tespit edildi. Anterior mediastinal kitle, komplet olarak rezeke edildi ve politetrafloroetilen greft ile superior vena kava rekonstruksiyonu uygulandi. Hasta ameliyat sonrasi dokuzuncu gunde taburcu edildi. Bu olgu, bu nadiren gorulen komplikasyonu nedeniyle sunuldu. Anah tar soz cuk ler: Acil rekonstruksiyon; mediastinal tumor; superior vena kava rupturu. A 52-years-old female patient was admitted with an invasive anterior mediastinal mass. Frozen section analysis of the mediastinotomy revealed lymphoma. In the morning of the first day following surgery, sudden onset of massive hemorrhage induced by cough was present from the chest drain. The patient was immediately taken to the operating room and a median sternotomy was performed subsequently. Massive hemorrhage arising from another site of the biopsy site was detected. Anterior mediastinal mass was resected completely and superior vena Cava reconstruction with polytetrafluoroethylene graft was performed. The patient was discharged on ninth day following surgery. We presented this case due to the rarity of this complication.

Stefano Puleo - One of the best experts on this subject based on the ideXlab platform.

  • Feasibility of a porto-intraCaval shunt for liver total vascular exclusion in the rabbit: preliminary report.
    Microsurgery, 1999
    Co-Authors: A. Di Cataldo, G. La Greca, Trombatore G, G. Li Destri, M. Rodolico, Rosario Lombardo, Stefano Puleo
    Abstract:

    The animals do not tolerate prolonged Caval and/or portal clamping which induces negative pathophysiological events such as release of kinins, damage of the intestinal mucosa, and bacterial translocation. In human liver surgery, these problems have been solved by bio-pump for veno-venous bypass. In order to find a simple method to reproduce a veno-venous bypass, we developed the porto-intraCaval shunt and used it in six adult rabbits. The shunt tested was a self constructed 7-french polyurethane shunt modeled as an inverted Y. The inferior vena Cava Vein below the diaphragm and below the liver and the portal Vein were gently dissected. The two longer branches of the shunt were inserted in the Cava Vein, while the remaining branch of the Y shunt was inserted in the portal Vein. After clamping the hepatic artery, the liver was partially resected in three animals and after 60 min the shunt was removed. The insertion of the shunt was always easy and the animals tolerated well the procedure and the anhepatic phase. Our study has been performed in order to test especially the technical feasibility of this shunt in an effort to reduce portal and Caval stasis during the anhepatic phase of the surgical procedures that require Caval and portal clamping. The technical feasibility has been obtained but we believe that the materials and dimensions of the shunt have to be perfected and adapted depending on the size of the Cava and portal Veins.

F. J. Rojo - One of the best experts on this subject based on the ideXlab platform.

  • Association between mechanics and structure in arteries and Veins: Theoretical approach to vascular graft confection
    2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
    Co-Authors: F. P. Salvucci, D. Bia, R. L. Armentano, J. G. Barra, D. Craiem, Y. Zocalo, J. D. Fernandez, F. Baguear, J. M. Atienza, F. J. Rojo
    Abstract:

    Biomechanical and functional properties of tissue engineered vascular grafts must be similar to those observed in native vessels. This supposes a complete mechanical and structural characterization of the blood vessels. To this end, static and dynamic mechanical tests performed in the sheep thoracic and abdominal aorta and the Cava Vein were contrasted with histological quantification of their main constituents: elastin, collagen and muscle cells. Our results demonstrate that in order to obtain adequate engineered vascular grafts, the absolute amount of collagen fibers, the collagen/elastin ratio, the amount of muscle cells and the muscle cells/elastic fibers ratio are necessary to be determined in order to ensure adequate elastic modulus capable of resisting high stretches, an adequate elastic modulus at low and normal stretch values, the correct viscous energy dissipation, and a good dissipation factor and buffering function, respectively.

Fortuny R - One of the best experts on this subject based on the ideXlab platform.

  • Orthotopic heart transplantation in a patient with previously undiagnosed persistence of the left superior vena Cava
    Revista espanola de cardiologia, 1995
    Co-Authors: López González A, Albertos J, González De Diego Jf, Garrido P, Castaño M, Arcas R, González Santos J, Fortuny R
    Abstract:

    The amount of transplants has gone through a remarkable increase during the last years. As a result, congenital anomalies of little prevalence appear more and more often while performing the transplants. The persistence of upper Cava Vein is one of them and, if not linked to other anomalies, it usually remains unnoticed. This article presents a case of an orthotopic cardiac transplant in a patient with an upper Cava Vein duplication not diagnosed before undergoing surgery, and it compares the way it was handled to diverse techniques previously described.