Effect of One-lung Ventilation on BIS Values

Status

Terminated

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03962036

Enrollment

Registered

2019-05-23

Start date

2019-10-11

Completion date

2021-12-03

Last updated

2021-12-20

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

Conditions

Surgery, Thoracic

Brief summary

In this observational study, all enrolled patients having a thoracic surgical procedure requiring lung isolation will have a bispectral index (BIS) monitor placed at time of induction. BIS monitors are used to assist in determining depth of anesthesia. This study will evaluate changes in BIS before, during and after lung isolation.

Interventions

DEVICEBispectral index monitor

BIS monitor is a novel measure of the level of consciousness by algorithmic analysis of a patient's electroencephalogram during general anesthesia.

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Healthy volunteers

Inclusion criteria

* Patients coming for thoracic surgery with anticipated need for lung isolation

Exclusion criteria

* None

Design outcomes

Primary

Measure	Time frame	Description
Change in BIS	From baseline to one lung ventilation (average time frame of 30 mins. - 1 hr.)	Comparing the BIS readings while on two lung ventilation to the BIS readings after switching the one lung ventilation.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026