Photoacoustic detector for monitoring propofol concentration in exhaled air during general anesthesia

Photoacoustic detector for monitoring propofol concentration in exhaled air during general anesthesia - Photofol

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00038060

Enrollment

Registered

2025-10-02

Start date

2025-10-20

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

General anaesthesia

Interventions

Group 1: Observation of patients undergoing general anaesthesia with propofol. Propofol in breath gas of patients is detected with mass spectrometry and a photoacoustic detector.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: General anaesthesia with propofol for surgery (not related to study) Invasive blood pressure measurement (not related to study) Endotracheal intubation (not related to study)

Exclusion criteria

Exclusion criteria: volatile anaesthestics

Design outcomes

Primary

Measure	Time frame
differences between concentration of propofol in breath gas measured with mass spectrometry and photoacoustic detector	—

Secondary

Measure	Time frame
correlation between processed EEG and propofol breath gas concentration and plasma levels	—

Countries

Germany

Contacts

Public ContactAgnes Meidert

Klinik für Anaesthesiologie, LMU Klinikum München

agnes.meidert@med.uni-muenchen.de+4989440081065

Outcome results

None listed

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