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  • 1
    ISSN: 1432-055X
    Keywords: Schlüsselwörter Swan-Ganz-Katheter ; Komplikation ; Nahtfixation ; Pulmonalarterie ; Key words Swan-Ganz catheter ; Complication ; Suture fixation ; Pulmonary artery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract We report a patient undergoing redo cardiac surgery for combined replacement of the aortic and mitral valves. During the course of the operation, a Swan-Ganz catheter – positioned preoperatively – was accidentally fixed to the wall of the pulmonary artery. As this did not interfere with cardiac output measurement or the pulmonary artery pressure wave form, the fixation was not noticed until an attempt was made to remove the catheter. Fluoroscopy revealed both the catheter's immobility and the location of the suture fixation. The patient required a sternotomy to remove the catheter. In order to avoid this complication, the indications for pulmonary artery catheters during cardiac surgery should be carefully considered. If catheters are inserted, their mobility should by all means be ensured before the chest is closed.
    Notes: Zusammenfassung Der vorliegende Fallbericht beschreibt die Nahtfixation eines Swan-Ganz-Katheters in der A. pulmonalis während eines kombinierten Aorten- und Mitralklappenersatzes. Da die Funktionen des Katheters nicht eingeschränkt waren, blieb die Fixation bis zur beabsichtigten Katheterentfernung unbemerkt. Konventionelle Röntgenaufnahmen legten die Diagnose nahe. Die Katheterentfernung erfolgte operativ über eine Resternotomie des Patienten. Zur Vermeidung dieser Komplikation bei kardiochirurgischen Eingriffen sollte, neben einer strengen Indikationsstellung, vor Thoraxverschluß in jedem Fall die freie Beweglichkeit sämtlicher Katheter im Operationsgebiet geprüft werden.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 19 (1993), S. 372-376 
    ISSN: 1432-1238
    Keywords: Mechanical ventilation ; Respiration ; Functional residual capacity ; Lung volume
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective The aim of the present study was to evaluate a simplified method for FRC measurement.Design: Accuracy and precision of the method were assessed in a physical lung model; reproducibility was tested in 10 mechanically ventilated patients. In each patient FRC was measured at three PEEP levels.Setting: Post-operative intensive care unit in a university hospital. Measurements and results Gas flow, CO2 concentration, and O2 concentration were measured during in- and expiration by pneumotachography, a mainstream capnometer and a sidertream O2-analyser. For FRC-measurement inspiratory O2 concentration was changed by 30%. FRC was determined as mean value of a N2 washout and N2 washin procedure. Evaluation of this method in a lung model shows a good correlation between FRC set in the lung model and FRC measured (FRC measured =1.028*FRC model+22.92 ml;r 2=0.957;n=30). The mean difference was 4.4% of FRC-reference (range −8.4% to +21.7%). Duplicate determinations in 10 mechanically ventilated patients differed by an average of −2.7% (range −30.1% to +27.3%). Conclusion Our results suggest that the proposed method can be used in daily clinical work.
    Type of Medium: Electronic Resource
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