The Cortisol Levels During Cardiac Surgery. The Comparison Between Etomidate and Thiopentone

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

Clinical Phase

PHASE4

Total Enrollment

92 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-12-31

Study Completion Date

2013-12-31

Brief Summary

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During induction for cardiac surgery, patient hemodynamic stability is achieved by using anesthetic drugs which least affects hemodynamics such as benzodiazepines, etomidate. Etomidate although has been used for a long time but its safety regarding cortisol synthesis suppression is still doubtful. This study measures the changes in cortisol levels during cardiac surgery with the use of cardiopulmonary bypass by comparison between two inductive agents (etomidate and thiopentone). Recording data also include hemodynamic changes during induction, inotropic use for coming of cardiopulmonary bypass, blood glucose levels, amount of insulin usage, length of ICU and hospital saty.

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Detailed Description

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Ninety-two cardiac patients who undergoing cardiopulmonary bypass graft (CABG) or valve surgery will be enrolled in this study. They will be randomized into two groups (thiopentone and etomidate groups). Apart from different in two inductive drugs, other anesthetics will be the same. We record hemodynamic changes during inductions, inotropic use (dose and duration), blood glucose levels, total insulin requirement to keep blood glucose 140-180 mg% in perioperative period, duration of mechanical ventilation, length of stay in ICU and total hospital length of stay. The changes in cortisol levels will be recorded at time 0 (before induction), 2, 4, 8, 24 hours in 26 patients (13 patients in each group and only patients who are the first in the operating list (morning list)).The 26 patients is needed from sample size equation for the changes in cortisol level and the 92 patients is calculated from the differences in inotropic use.

Conditions

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Coronary Artery Disease Valvular Heart Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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etomidate

Group Type ACTIVE_COMPARATOR

etomidate

Intervention Type DRUG

During induction, after 3 mcg/kg of fentanyl and 0.05 mg/kg of midazolam given, small doses 2-4 mg (1-2 ml) of etomidate will be given by titration (the syringe pump and extension and three way stopcock are covered to blind the study drug) until the patients are unconscious.

thiopentone

Group Type ACTIVE_COMPARATOR

thiopentone

Intervention Type DRUG

During induction, after 3 mcg/kg of fentanyl and 0.05 mg/kg of midazolam given, small doses 25-50 mg (1-2 ml) of thiopentone will be given by titration (the syringe pump and extension and three way stopcock are covered to blind the study drug) until the patients are unconscious

Interventions

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etomidate

During induction, after 3 mcg/kg of fentanyl and 0.05 mg/kg of midazolam given, small doses 2-4 mg (1-2 ml) of etomidate will be given by titration (the syringe pump and extension and three way stopcock are covered to blind the study drug) until the patients are unconscious.

Intervention Type DRUG

thiopentone

During induction, after 3 mcg/kg of fentanyl and 0.05 mg/kg of midazolam given, small doses 25-50 mg (1-2 ml) of thiopentone will be given by titration (the syringe pump and extension and three way stopcock are covered to blind the study drug) until the patients are unconscious

Intervention Type DRUG

Other Intervention Names

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Etomidate Lipuro (B Braun company) Anesthal (Jagsonpal pharmaceuticals Ltd)

Eligibility Criteria

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Inclusion Criteria

60 year or older cardiac patient undergoing cardiac surgery (CABG or valve surgery) with the use of cardiopulmonary bypass -

Exclusion Criteria

* Redo or emergency operation
* complex and prolong operation
* history of adrenal insufficiency or steroid use
* already has inotropic drugs to support hemodynamics
* creatinine \> 2.0 mg/dl

Minimum Eligible Age

60 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No