Mechanical Ventilation on Hippocampus

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorBeijing Sanbo Brain Hospital

About this trial

Ventilator-associated brain injury (VABI) frequently occurs in ICU patients. Although animal studies indicate the hippocampus as a key target of VABI, its relevance in human patients remains uncertain. In this study, the investigators aim to monitor hippocampal EEG activity during the weaning process of patients off mechanical ventilation, and also exploring the coupling between breathing patterns and hippocampal activity.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age: ≥ 18 years

ASA: I - II

w/ electrode inside hippocampus (≥ 1 contacts)

Singed consent form

Disqualifiers

Seizure occurrence ≤ 36 hours before op.

Structural brain damage

History of using: opioids, enzyme-inducing medications, sleep aids, or excessive alcohol consumption

History of mechanical ventilation (>24h)

Trial population

Patients with drug-resistant epilepsy and scheduled for sterero-electroencephalograophy (sEEG) exploration as part of pre-surgical assessment will be screened for eligibility.

Trial design

Design model

Other

Time perspective

Prospective

Treatments tested in this trial

  • Mechanical ventilation

    Procedure/Surgery

    After replacing the electrode, we'll monitor the EEG activity of the hippocampus and other cortex regions while weaning off mechanical ventilation.

Treatment groups

No treatment groups listed

Trial outcomes

Primary outcomes

1

intracranial EEG (iEEG) recording of the hippocampus

The iEEG data from each patient will be analyzed using Python (version 3.12.4). The data will be represented as power spectral density, also known as the power spectrum or spectrum, which measures the frequency distribution of energy or power within a signal. The power spectrum for each channel will be computed using the Fast Fourier Transform (FFT).

Time frame
During the process of weaning off mechanical ventilation, assessed up to 3 hours.

Secondary outcomes

Other outcomes

Sponsors and contacts

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