[Non-invasive ventilation in prehospital emergency medicine - contra].

The non-invasive ventilation (NIV) has been practiced successfully for years in the clinical routine. Now this therapeutic option should be transferred in the pre hospital emergency service. But there are many risks, they must be mentioned: As a matter of fact an effective clinical therapy can not be brought to the streets easily - even if there are good and well-tried conservative therapies and just at last just a few patients.