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  • 1
    ISSN: 1279-8517
    Keywords: Aortic ring ; Aortic valve surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le diamètre moyen de l'anneau aortique a été précisé au travers d'une double étude, anatomique (84 dissections), et chirurgicale (439 remplacements mono-valvulaires aortiques): les valeurs observées (23,4 mm chez la femme, 25,8 mm chez l'homme) sont relativement importantes par rapport aux données classiques. La série chirurgicale a en outre permis d'interpréter ces valeurs en fonction de divers paramètres, notamment la surface corporelle et surtout la taille des sujets: peut-être l'augmentation de la taille de la population explique-t-elle les grandes dimensions observées.
    Notes: Summary The mean diameter of the aortic ring has been measured in twin anatomical (84 dissections), and surgical (439 aortic valvular replacements) studies. The values obtained (23.4 mm in females and 25.8 mm in males) are rather higher than those classically reported in the literature. The surgical series allowed us to obtain measurements of the aortic ring in relation to certain important factors, in particular body surface area and height. It is perhaps the progressive increase in mean height of Frenchmen that led to our measurements being greater than those previously described.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1279-8517
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusions On peut admettre, actuellement que le diamètre moyen de l'anneau aortique est voisin de 23,4 mm chez la femme, 25,8 mm chez l'homme. La circonférence est donc supérieure d'environ 10 mm aux valeurs classiquement admises.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1041
    Keywords: atrial natriuretic peptide ; heart transplantations ; ANP release ; plasma ANP concentration ; Jarvic-7 artificial heart
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Plasma atrial natriuretic peptide (ANP) concentrations were measured by radioimmunoassay 1 to 12 days after operation in six patients with artificial hearts. The mean levels were significantly higher in artificial heart recipients (58.2 pg · ml−1) than in controls (12.6 pg · ml−1). The mechanism underlying the raised values is not clear, although it is suggested that elevated atrial pressure may have been the stimulus for higher ANP release. In 3 patients plasma ANP concentrations were also measured 1 to 5 days after orthotopic transplantation. In all of them ANP concentrations had increased by 20 to 74% despite lower right atrial pressure. An increase in atrial tissue mass may have contributed to the raised plasma ANP after orthotopic transplantation. It also suggests that the functioning sympathetic nervous system is not a necessary condition for ANP release.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1041
    Keywords: Atrial natriuretic peptide ; Cardiac transplant recipients ; Intra cardiac pressures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Blood pressures and plasma atrial natriuretic peptide (ANP) concentrations have been measured in venous and intracardiac sites in 11 patients (10 men and 1 woman) given cardiac transplants. The mean plasma ANP level was 214.4 pg·ml−1 in the superior veina cava and 281 pg·ml−1 in the right atrium. This significantly higher level was maintained in the right ventricle (269) and in the pulmonary artery (295). The level in controls was 25 pg·ml−1. Intra cardiac and mean arterial pressures were in normal range in all patients, and there was no correlation between plasma ANP level and intracardiac pressure. The data suggest that in cardiac transplant patients right atrial pressure does not have a primary role in releasing ANP. The transplanted heart is denervated and remains so for many months after operation, thus suggesting that innervation is not obligatory for ANP secretion. Further studies are required to determine the relative contribution of donor and recipient atrial tissues to ANP secretion.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 1 (1979), S. 321-324 
    ISSN: 1279-8517
    Keywords: Plexus intra-rachidiens ; veine rénale gauche ; anastomoses veineuses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Résumé Des anastomoses entre la veine rénale gauche et les plexus rachidiens existent dans environ 80% des cas (16 cas sur 20); elles sont importantes dans 25% des cas (5 cas). Le siège de leur origine est fixe: le plexus du trou de conjugaison de l'espace L1–L2 reçoit généralement ces voies anastomotiques. Ces anastomoses ont une grande importance, puisqu'elles constituent la seule voie collatérale ≪de sûreté≫ du rein dans 7 cas sur 20. Leur hypertrophie, dans certains cas pathologiques, peut être responsable de troubles neurologiques ≪par compression≫, réversibles après ligature des anastomoses hypertrophiées.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1279-8517
    Keywords: Aorta ; Imaging (CT, MRI) ; Serial anatomic slices ; Surgical strategy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les lésions de l'aorte thoracique posent le problème de leur siège et de leurs rapports avec les principales collatérales de l'aorte. La stratégie chirurgicale doit permettre de traiter la lésion et d'assurer pendant l'intervention la perfusion des tissus exclus par le clampage. L'étude anatomique des lésions de l'aorte repose sur l'imagerie. L'angiographie reste encore souvent l'examen de base bien qu'elle ne montre que la lumière et le trajet de l'aorte. En revanche, la tomodensitométrie et l'IRM visualisent la paroi aortique mais surtout les rapports de l'aorte avec les structures médiastinales. Une confrontation anatomie - imagerie a été entreprise sur 10 sujets frais du Laboratoire d'Anatomie des Saints-Pères et de l'Ecole de Chirurgie du Fer à Moulin coupés tous les 3 à 5 mm dans les 3 plans (sagittal, coronal et axial) après repérage tomodensitométrique (TDM) du plan de coupe. Cette étude anatomique a été correlée à l'imagerie tomodensitométrique et l'imagerie par résonance magnétique (IRM) obtenues sur des volontaires sains. Devant une lésion de l'aorte thoracique, le choix de la stratégie chirurgicale repose sur le bilan anatomique pré-opératoire (imagerie) qui doit tenir compte de l'aorte mais aussi de ses collatérales et du territoire vascularisé.
    Notes: Summary Lesions of the thoracic aorta create problems related to their site and relations with the main aortic branches. The aim of surgery must be to treat the lesion while ensuring perfusion of the tissues excluded by clamping during the operation. Anatomic study of the aortic lesions is based on imaging. Angiography is still often the basic examination though it shows only the lumen and course of the aorta. However, CT and MRI visualise the aortic wall and especially the relations of the aorta to the mediastinal structures. A comparison of anatomic and imaging studies was made on 10 fresh subjects coming from the anatomy department of the Saints-Pères and from the school of surgery of Fer à Moulin. Sections were made every 3 to 5 mm in 3 planes (sagittal, coronal and axial) after CT localisation of the plane of section. This anatomic study was correlated with CT and MR images made on healthy volunteers. The choice of surgical management of a lesion of the thoracic aorta is based on preoperative anatomic assessment by imaging applied not only to the aorta but also to its branches and the territory supplied.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cardiac surgery 5 (1990), S. 0 
    ISSN: 1540-8191
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Among our first 11,620 cases of valvular replacement, we observed 285 cases of valvular endocarditis and 59 cases (20.7%) in which the importance of the infectious lesions of the aortic or mitral annulus required complex valvular repair.In 23 patients with aortic valvular endocarditis, the presence of an abcess of the aortic annulus required its closure with a patch resulting in one early and one late death and five reinterventions with one death. Twenty patients are alive and well, 1 to 9 years after operation. In 11 patients, the extent of annular abcesses required the insertion of a subcoronary valved conduit. After a maximum follow-up of 8 years there were two early deaths, two late deaths, one reoperation seven good results. Twelve patients had a supracoronary valved conduit resulting in four early deaths, one late death two reoperations; seven are alive and well, 2 to 6 years later. Three patients previously operated on had a left ventricular abdominal aorta valved conduit, two of them are alive and well up to 6 years later.Severe infectious lesions of the valvular rings (aortic root) can require complex repairs that can be lifesaving and provide excellent long-term results.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 382 (1982), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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