Invasive versus non-invasive methods of blood gas measurement

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00000688

Enrollment

100

Registered

2011-02-23

Start date

2010-09-08

Completion date

Unknown

Last updated

2025-10-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

respiratory disorder

Interventions

Group 1: transcutaneous measurement of PtcO2 and PtcO2 with probe on thorax Group 2: arterial ABG from radial artery Group 3: capillary ABG from right earlobe Group 4: capillary ABG from right earlobe

Eligibility

Sex/Gender

All

Age

18 Years to 100 Years

Inclusion criteria

Inclusion criteria: inpatients in the department of pneumology of the university hospital Freiburg receiving arterial or capillary blood gas analysis

Exclusion criteria

Exclusion criteria: • patiente 50 sec.) • patients with blood circulation disorders of the hand

Design outcomes

Primary

Measure	Time frame
method comparison of transcutaneous PO2 and capillary PaO2 at right ear, each with the goldstandard PaO2	—

Secondary

Measure	Time frame
method comparison Bland und Altmann: o PartO2 / PtcO2 o Pkap/rO2 / PtcO o PartO2 / Pkap/rO2 o SpO2 / SaO2 art o SpO2 / SaO2 kap/r o SaO2 art / SaO2 kap/r o PartCO2 / PtcCO2 o Pkap/rCO2 / PtcCO2 o PartCO2 / Pkap/rCO2 o Pkap/rCO2 / Pkap/lCO2 o Pkap/rO2 / Pkap/lO2 o SaO2 kap/r / SaO2 kap/l ANOVA: o VAS kap/ VAS art / VAS tc	—

Countries

Germany

Contacts

Public ContactEmelie Ekkernkamp

Universitätsklinik Freiburg, Abteilung Pneumologie

emelie.ekkernkamp@uniklinik-freiburg.de07612703706

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026