Focussed Echocardiography to Detect Preoperative Hypovolemia and Left Ventricular Dysfunction as a Predictor of Post-Induction Hypotension

NCT ID: NCT02944266

Last Updated: 2016-10-25

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

UNKNOWN

Total Enrollment

150 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-01-31

Study Completion Date

2016-12-31

Brief Summary

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This is an observational study to evaluate the role of a Bed side Focus assessed Transthoracic Echocardiography (FATE) in identifying the patients at a potential risk of developing hypotension secondary to general anesthesia induction using the FATE parameters like velocity time integral ( VTI ), Inferior venacava diameter , Caval index and Left ventricular end end diastolic area.

Detailed Description

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Various haemodynamic parameters like central venous pressure , pulmonary capillary wedge pressure , systolic pulse pressure variations , stroke volume variation , pleth variability index etc are being used as markers of volume status and which in turn have been used as indicators of post general anesthesia induction hypotension in the past . In the current study the investigators aim to validate the role of a bed side 2-D transthoracic echocardiography (TTE) as a guide to identify the volume status of the patient before induction and clinically observe for the haemodynamic changes in the form of mean arterial pressure variations in the immediate post induction period.

The investigators aim to perform preoperative bed side Transthoracic echocardiography in 150 American society of Anesthesiologists grade-I/II patients posted for routine General anaesthesia procedures and assess their volume status . Then the investigators would collect 10 mean arterial pressure recordings at one minute interval in the immediate postinduction period and assess the accuracy of TTE in identifying potential patients at risk of developing post induction hypotension.

Conditions

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Hypotension

Keywords

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post general anaesthesia induced

Study Design

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Study Time Perspective

PROSPECTIVE

Study Groups

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Hypovolemia group

Those patients who are said to be positive for one or more of the following TTE criteria are grouped under this , them being i.IVC diameter of less than 1 cm , ii.Caval index of \> 50%, iii.Left ventricular end diastolic area of \< 10 cm2 iv. VTI variation with respiration of \< 12.5%, are grouped under the hypovolaemia group .

Pre operative Focus assessed Transthoracic echocardiographic assessment.

Intervention Type OTHER

Normovolaemia group

Those patients without the above said TTE findings are hypothesised to be normovolaemic and grouped in here.

Pre operative Focus assessed Transthoracic echocardiographic assessment.

Intervention Type OTHER

Interventions

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Pre operative Focus assessed Transthoracic echocardiographic assessment.

Intervention Type OTHER

Eligibility Criteria

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Exclusion Criteria

* a) Extremes of age \<18 years and \>60 years

b) BMI\<18 and \>40

c) Patients with pre-existing hemodynamic instability, ventricular dysfunction and

Sepsis.

d) Patients on beta blocking agents.

e) Preinduction mean arterial pressure of \<70 mm hg.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Post Graduate Institute of Medical Education and Research, Chandigarh

OTHER

Sponsor Role lead

Responsible Party

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J S Rahul

Junior resident , Department of Anaesthesia and Intensive care

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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J S Rahul

Chandigarh, Chandigarh, India

Site Status RECRUITING

Countries

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India

Central Contacts

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Rahul JS Dr, MD

Role: CONTACT

Phone: 8437722798

Email: [email protected]

Dr vikas saini, MD

Role: CONTACT

Phone: +91 7087008119

Email: [email protected]

Facility Contacts

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Dr vikas saini, MD

Role: primary

References

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Reference Type BACKGROUND
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Alecu C, Cuignet-Royer E, Mertes PM, Salvi P, Vespignani H, Lambert M, Bouaziz H, Benetos A. Pre-existing arterial stiffness can predict hypotension during induction of anaesthesia in the elderly. Br J Anaesth. 2010 Nov;105(5):583-8. doi: 10.1093/bja/aeq231. Epub 2010 Aug 26.

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Reference Type BACKGROUND
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Gauss A, Heinrich H, Wilder-Smith OH. Echocardiographic assessment of the haemodynamic effects of propofol: a comparison with etomidate and thiopentone. Anaesthesia. 1991 Feb;46(2):99-105. doi: 10.1111/j.1365-2044.1991.tb09349.x.

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Other Identifiers

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NK/2172/MD/11249-50

Identifier Type: -

Identifier Source: org_study_id