Zusammenfassung
Der anatomisch-funktionelle Aufbau der Lunge ermöglicht den Gasaustausch auch unter
weitgehenden Extremsituationen, wie bei Aufenthalten in großer Höhe. Ein wichtiger
Mechanismus ist die Verteilung von Ventilation und pulmonaler Perfusion. Unter Narkose
kommt es zu einem klinisch relevanten Ventilations-Perfusions-Missverhältnis mit der
Gefahr von Oxygenierungsstörungen, die durch ein entsprechendes Management vermindert
werden können.
Abstract
The functional anatomy of the pulmonary gas exchanger enables an adequate oxygenation
even in extreme situations, e. g. high altitude. An important mechanism is the distribution
of ventilation and pulmonary perfusion. With induction of anaesthesia a relevant ventilation-perfusion
mismatch results in oxygenation impairment, which can be prevented by specific anaesthetic
techniques.
Schlüsselwörter
Gasaustausch - Narkose - Atmung - Lungenphysiologie - Ventilations-Perfusionsverhältnis
Key words
Gas exchange - anaesthesia, general - breathing - lung physiology - ventilation-perfusion
distribution
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Dr. med. Dietrich Henzler
Klinik für Anästhesiologie, Universitätsklinikum Aachen ·
Pauwelsstraße 30 ·
52074 Aachen
Email: dhenzler@ukaachen.de
