Dynamic Arterial Elastance to Predict Postural Change Induced Hypotension

Kangbuk Samsung Hospital44 enrolled

Overview

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.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Hypotension

Interventions

Positional change from supine to proneOTHER

Patient is turned from supine to prone position for spine surgery

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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)

Locations (1)

Kangbuk Samsung Hospital

Seoul, South Korea

Outcomes

Primary Outcomes

Dynamic arterial elastance before positional change

Dynamic arterial elastance, defined as the ratio of pulse pressure variance/stroke volume variance will be recorded 1 minute before positional change

Time frame: 1 minute before positional change

Data from ClinicalTrials.gov

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