Ultrasonographic Predictors of Hypotension After Induction

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

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-03-02

Study Completion Date

2022-11-12

Brief Summary

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The purpose of the study is to evaluate the predictive value of the inferior vena cava collapsibility index and caval aorta index for detecting hypotension after induction of general anesthesia.

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Detailed Description

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Since cardiovascular depressant and vasodilatory effects of anesthetic agents, patients may be at risk of hypotension after induction of general anesthesia. Previous studies reported that, for evaluating volume status, some ultrasonographic measurements such as inferior vena cava collapsibility index (IVCCI) could be used. Also some studies stated that measurement of aorta diameter index (IVC : Ao index) is reliable to predict hypotension after induction of spinal anesthesia. At the study, the investigators aimed to investigate the predictive values of the inferior vena cava collapsibility index and caval aorta index under ultrasound guidance in predicting post-induction hypotension in patients under general anesthesia.

Conditions

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General Anesthesia Hypotension on Induction

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Inferior vena cava-Aorta diameter index

Before the induction of general anesthesia, inferior vena cava-Aorta diameter index and inferior vena cava collapsibility index will be measured.

Intervention Type OTHER

Other Intervention Names

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Inferior vena cava collapsibility index

Eligibility Criteria

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Inclusion Criteria

* patients more than 18 years of age
* American Society of Anesthesiologists' (ASA) physical status 1 or 2

Exclusion Criteria

* BMI more than 30 kg/m²
* Use of angiotensin converting enzyme inhibitors
* pregnancy,
* emergency operations
* baseline arterial systolic blood pressure less than 90 mmHg
* mean arterial blood pressure less than 70 mmHg

Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No