Monitoring tissue oxygenation by near-infrared spectroscopy (NIRS) in air ambulance transports of critically ill children – a methodological study

• Register: ANZCTR
• Last refreshed on: 10 July 2017
• Main ID: ACTRN12617000750381
• Date of registration: 22/05/2017
• Prospective Registration: No
• Primary sponsor: Karolinska University Hospital
• Public title: Monitoring tissue oxygenation by near-infrared spectroscopy (NIRS) in air ambulance transports of critically ill children – a methodological study
• Scientific title: Monitoring tissue oxygenation by near-infrared spectroscopy (NIRS) in air ambulance transports of critically ill children – a methodological study
• Date of first enrolment: 14/01/2014
• Target sample size: 38
• Recruitment status: Completed
• URL: http://www.anzctr.org.au/ACTRN12617000750381.aspx
• Study type: Observational

Health Condition(s) or Problem(s) studied

Critical illness

Intervention(s)

In this methodological study, a cerebral and a somatic (abdominal) Near-infrared (NIRS) sensor were used to register regional oxygen saturation (rSO2) during planned and acute transports of critically ill patients to and from the PICU of a tertiary university hospital Patients (n=38) were transported in air ambulance and connecting ground ambulance (convenience sampling) by a pedaitric specialized transport team. The electronically stored data from the INVOS 5100C was afterwards extracted and examined. In order to reduce as much noise as possible in the NIRS-signal without improperly busting the underlying information the signal was smoothed by using the Savitzky-Golay filtering method. The duration for which the NIRS monitoring took place was from time of departure to arrival at hospital site in all patients. If patients were monitored due to clinical considerations in the PICU before time of departure, this data was also analyzed.