Aufgabe dieses Beitrages soll und kann es nicht sein, die konsequente Aus- und Weiterbildung in der Thoraxchirurgie und die Erfahrung durch die regelmäßige Ausübung dieser speziellen Operationen zu ersetzen.
Background: We studied whether hemodynamic and oxygenation profiles are altered in critically ill patients after exposure to hyperbaric oxygen (HBO). Methods: Ten intensive‐care patients (two females, eight males) undergoing HBO treatment after major abdominal surgery, after burn injury and after CO poisoning were included. All subjects were put on mechanical ventilation and received continuous sedation, and had HBO treatment at 2.2 absolute atmospheres for 50 min. Design: Observational prospective study, and repeated measure design. Results: Hemodynamic and oxygen transport patterns were determined before (C0), 1 h (C1) and 2 h (C2) after HBO therapy with continuous cardiac output dual oximetry pulmonary arterial catheter, a central venous and radial arterial line. Data were analyzed with non‐parametric repeated measure analysis. Key results are expressed as a percentage of baseline (C0 values correspond to 100%) at C1 and C2 (median values, lower and upper limit of confidence interval): cardiac index [C1: 105% (98–135), C2: 99% (91–117), P = 0.19], systemic ( P = 0.62) and pulmonary vascular ( P = 0.76) resistance indices were unchanged, but pulmonary venous admixture (Qs/Qt) increased [C1: 173% (112–298), C2: 140% (92–241), P = 0.00002)] and arterial oxygen tension decreased [C1: 76% (67–94), C2: 82% (72–112), P = 0.010]. Conclusion: The hemodynamic profile remained unaffected. The increase in Qs/Qt and the decrease in PaO 2 may be attributed to the inhalation of HBO, and both are reversible.
Article Transcranial Cerebral Oximetry in the Hyperbaric Environment - Transkranielle zerebrale Oximetrie unter hyperbaren Bedingungen was published on January 1, 1997 in the journal Biomedical Engineering / Biomedizinische Technik (volume 42, issue 3).
Objectives: The hyperbaric oxygen therapy (HBO) can be used to increase the oxygen content in the blood and is therefore a useful treatment in several diseases such as: ischemia, wound healing problems, gas gangrene or air embolism. Successful treatment of HBO in ischemic insult is still controversial. The aim of this study was to evaluate patients with neurological deficits after cardiac surgeries, which were consequently treated with HBO.
