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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Intensive care medicine 25 (1999), S. 862-864 
    ISSN: 1432-1238
    Schlagwort(e): Key words Surfactant ; Lung transplantation ; Reperfusion injury
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Background: Reperfusion injury remains a significant risk factor in the immediate postoperative course after lung transplantation. We report on our initial clinical experience of surfactant replacement in reperfusion injury after clinical lung transplantation. Methods and results: In 31 consecutive patients, lung (8 single lung, 16 bilateral lung) or heart-lung (7) transplantation was performed. In 6 patients, severe reperfusion injury developed and was treated with continuously nebulized surfactant. Compliance of the allograft increased 40 ± 25 % within 3 h following treatment with surfactant. Alveolar arterial oxygen gradient decreased by 23 ± 11 % after 3 h and by 35 ± 20 % after 6 h. Normal graft function was reestablished within 1–3 days after transplantation. All treated recipients were extubated until the 6th postoperative day. The 30-day mortality for the 31 recipients was 3.3 %, the 1-year survival 84 %. Conclusions: Surfactant replacement may become a clinical method for treatment of reperfusion injury after lung transplantation.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Intensive care medicine 25 (1999), S. 1315-1318 
    ISSN: 1432-1238
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Graft failure after lung transplantation may occur immediately after transplantation due to reperfusion injury or later due to rejection and infection. Although the pathological mechanisms are not completely known, the clinical findings are similar to the adult respiratory distress syndrome. In this condition, the blood coagulation contact system and the complement system are activated, leading to a capillary leak syndrome. Activation of the contact as well as the complement system is regulated by a common inhibitor, C1-esterase inhibitor (C1-INH). We report on two patients who received high doses of C1-INH for 2 days during graft failure either due to reperfusion injury immediately after transplantation or due to an acute rejection 2 months after double-lung transplantation. In both cases of graft failure, a capillary leak syndrome occurred with pleural effusions of 7 l to more than 10 l per day. In case 1 disturbance of gas exchange during severe reperfusion injury could not be treated effectively with other treatment modalities like nitric oxide ventilation or surfactant administration. With the use of C1-INH, pleural effusions reduced within 12 h, leading to normal graft function within 4 days. In the second recipient, acute rejection forced the use of extracorporeal membrane oxygenation (ECMO) within 24 h despite immunosuppressive therapy. After administration of C1-INH, pleural effusions reduced from 19 l per day to 300 ml within 3 days of treatment. ECMO was discontinued after C1-INH treatment and the patient extubated 2 weeks later. This experience indicates that C1-INH may play a role in the management of capillary leak syndrome after lung transplantation.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 151 (1992), S. S65 
    ISSN: 1432-1076
    Schlagwort(e): Heart transplantation ; Lung transplantation ; Immunosuppression ; Transplant vasculopathy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Growing experience in terms of immunosuppression, recipient and donor selection as well as organ preservation has established thoracic organ transplantation as a therapeutic option for many children with endstage cardiopulmonary diseases. While dilated cardiomyopathy and isolated myocardial failure represent the main indications for cardiac transplantation, replacement of the lungs or heart and lungs is necessitated in cystic fibrosis, primary and secondary pulmonary hypertension as well as some types of complex congenital heart defects involving the pulmonary arteries. We have performed a total of 20 heart, 4 heart-lung, 2 single lung and 1 double lung transplantation in the paediatric group up to 17 years of age. While with respect to the limited experience worldwide, early mortality after lung and heart-lung transplantation is still high (50%), long-term results in isolated cardiac transplantation using triple drug immunosuppression are excellent (79% survival after 6 years) without major impairment of renal function, arterial blood pressure, growth development and physical rehabilitation as well as social reintegration. Freedom from graft atherosclerosis of the allografted heart is documented over a 5 year follow up, while no data are available on the incidence of obliterative bronchiolitis after lung transplantation in the paediatric group. Despite only limited evidence of long-term dysfunction, diagnosis and prevention of chronic rejection should be given utmost attention to allow for a normal life span in this younger age group.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 1432-2307
    Schlagwort(e): Lung-transplantation pathology ; Bronchi-epithelium ; Ischaemia ; Mitochondrial swelling ; Scanning electron microscopy ; Transmission electron microscopy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract In ten cases of clinical human single-lung transplantation, the nontransplanted Euro-Collins-preserved contralateral lungs were examined using electron microscopy to determine the effects of ischaemia on the bronchiolar epithelium. Existing structural damage at the time of transplantation was characterized using this approach, and nine nonpreserved canine single lungs were also investigated to identify the impact of ischaemia. The study revealed a significant correlation between the duration of ischaemia and the mitochondrial surface-to-volume ratio, which can serve as a morphometric criterion for mitochondrial damage, in canine lungs. However, this correlation was not found in the human donor lungs. Further examination of human donor lungs showed slight to moderate damage to the endoplasmic reticulum and nuclear chromatin. In addition, various degrees of damage to mitochondrial structure, ranging from inconspicuous to severe, were found. The mitochondrial surface-to-volume ratio can be considered to be a suitable criterion for the quantification of ischaemic damage of the bronchiolar epithelium under experimental conditions. Ultrastructural analysis of human donor lungs revealed intact bronchiolar epithelial cell structures at the time of transplantation, reflecting adequate organ preservation with Euro-Collins solution.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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