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Currently, you can access the following clinical trials being conducted worldwide:
Clinicaltrials.gov identifier NCT03943745
Recruitment Status Completed
First Posted May 9, 2019
Last update posted May 9, 2019
PropoStatus is a prospective observational study investigating the EEG changes seen in neurologically healthy patients during induction of general anesthesia with propofol.
PropoStatus is a prospective observational study investigating the EEG changes seen in neurologically healthy patients during induction of general anesthesia with propofol. EEG changes are investigated in different levels of anesthesia from awake state to deep anesthesia in which burst suppression pattern (BSP) is seen in the EEG. Furthermore, the relation of EEG changes and clinically evaluated depth of anesthesia is studied. The study population is comprised of neurologically healthy individuals who come to the hospital for elective surgery requiring general anesthesia. The patients will not receive any pre-medication. They will give a written consent to participate to the study. During induction of anesthesia, the vital signs will be monitored using the standard protocol of the operating room. EEG will be recorded using a self-adhesive disposable forehead electrode and wireless measurement device. The EEG is observed during the recording from a laptop or tablet computer. The anesthesia is induced using propofol with a fixed infusion rate of 30 mg/kg/h. The patient is asked to squeeze the anesthetist's hand repeatedly every 10 s. The moment at which the patients does not respond to the command anymore is considered as the loss of consciousness. The infusion is continued until BSP is observed in the EEG. The infusion is then continued for 3 min after which the recording of EEG is stopped. The administration of anesthesia is then continued as required by the operation.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, , Learn About Clinical Studies.-->
- ASA 1-2 (no neurological or cardiovascular diseases)
- BMI > 30
South Karelia Central Hospital
University of Oulu
South Carelia Central Hospital
Principal Investigator: Jukka Kortelainen, MD, PhD University of Oulu
Kortelainen J, Väyrynen E, Huuskonen U, Laurila J, Koskenkari J, Backman JT, Alahuhta S, Seppänen T, Ala-Kokko T. Pilot Study of Propofol-induced Slow Waves as a Pharmacologic Test for Brain Dysfunction after Brain Injury. Anesthesiology. 2017 Jan;126(1):94-103.
Kortelainen J, Väyrynen E, Juuso I, Laurila J, Koskenkari J, Ala-Kokko T. Forehead electrodes sufficiently detect propofol-induced slow waves for the assessment of brain function after cardiac arrest. J Clin Monit Comput. 2020 Feb;34(1):105-110. doi: 10.1007/s10877-019-00282-3. Epub 2019 Feb 20.