Dynamic Arterial Elastance to Predict Postural Change Induced Hypotension

Kangbuk Samsung Hospital

Status: Completed

Conditions: Hypotension

Treatments: Other: Positional change from supine to prone

Study type: Observational

Funder types: Other

Identifiers

NCT04850092

KBSMC 2021-04-038

Details and patient eligibility

About

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.

Enrollment: 44 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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)

Trial design

44 participants in 2 patient groups

Non-hypotensive

Description:

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

Treatment:

Other: Positional change from supine to prone

Hypotensive

Description:

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

Treatment:

Other: Positional change from supine to prone