Dynamic Arterial Elastance to Predict Postural Change Induced Hypotension

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

44 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-12-15

Study Completion Date

2022-07-15

Brief Summary

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During general anesthesia, hypotension might occur during positional change. It is reported that hypotension after positional change from supine to prone is mainly caused by the decrease in preload. The investigators aimed to investigate whether dynamic arterial elastance might predict hypotension associated with positional change from supine to prone.

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Detailed Description

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Conditions

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Hypotension

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Non-hypotensive

Mean blood pressure is maintained after positional change from supine to prone.

Positional change from supine to prone

Intervention Type OTHER

Patient is turned from supine to prone position for spine surgery

Hypotensive

Mean blood pressure decrease \< 20% after positional change from supine to prone.

Positional change from supine to prone

Intervention Type OTHER

Patient is turned from supine to prone position for spine surgery

Interventions

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Positional change from supine to prone

Patient is turned from supine to prone position for spine surgery

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients planned for invasive arterial catheter insertion, undergoing elective spine surgery in prone position under general anesthesia

Exclusion Criteria

* arrythmia
* pulmonary disease
* increased intracranial pressure
* decreased cardiac function (ejection fraction \< 50%)
* obesity (body mass index \> 40)

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No