Pharmacokinetic Study of Effect of Cardiac Output on the Uptake of Isoflurane

February 1, 2015 updated by: Rajarajan Ganesan, Postgraduate Institute of Medical Education and Research

Effect of Cardiac Output on Uptake of Isoflurane

This study examines the effect of blood flow through the lungs and the body on the consumption and hence requirement of the anesthetic agent isoflurane.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

The effect of cardiac output on the uptake of isoflurane is yet to be quantified. This study aims to obtain a quantifiable relationship between isoflurane uptake and cardiac output. The study patients will be cardiac patients in whom anesthesia is induced with fentanyl , propofol and maintained on isoflurane . The baseline cardiac index from the pulmonary artery catheter as displayed on the continuous cardiac output monitor will be used to classify the patients into two groups with cardiac index of 2.1 liters per minute per square meter as the differentiating criteria. No change in the anesthesia protocol will be done for the two groups.The study is designed such that all vascular catheterisations and the dose of isoflurane administered is as per prevailing institutional protocols and that no other intervention particular or unique to the study is done. As such the data that the study will use is also routinely acquired during the procedure but not systematically stored, which is what the study will do. This, we suggest, makes the study an observational study.The continuous cardiac output data and the inspired and expired concentration of isoflurane as displayed on the monitor will be recorded online. Data will be collected from the start of isoflurane till 30 minutes or till the surgeon starts cannulating the great vessels. The data so obtained will be analysed in two groups based on the baseline cardiac index using Statistical Package for the Social Sciences (SPSS) for difference in uptake between the groups.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
33

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • India
      • Chandigarh, India, 160012
        • Postgraduate Institute of Medical Education and Research

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients undergoing elective, open cardiac procedures under general endotracheal anesthesia with cardiopulmonary bypass

Description

Inclusion Criteria:

  • Presence of valve stenosis / valvular regurgitant lesion/ coronary artery disease with Ejection fraction >40%
  • Posted for open cardiac surgery under general endotracheal anesthesia

Exclusion Criteria:

  • Shunt lesion
  • Allergy to propofol
  • Psychotropic drug use
  • Preinduction hemodynamic instability

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Reference
Baseline cardiac index more than or equal to 2.1 liters per minute per square meter
Low cardiac output
Baseline cardiac index less than 2.1 liters per minute per square meter

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Uptake of isoflurane in milliliter of vapor per minute
Time Frame: Every minute from 1 to 30 minutes
Every minute from 1 to 30 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Postgraduate Institute of Medical Education and Research

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: GOVERDHAN D PURI, MD,Ph.D, Post Graduate Institute of Medical Education and Research
  • Principal Investigator: Rajarajan Ganesan, M.D., Post Graduate Institute of Medical Education and Research
  • Principal Investigator: Aveek Jayant, M.D.,D.M., Post Graduate Institute of Medical Education and Research
  • Principal Investigator: Shyam Thingnam, M.S., Post Graduate Institute of Medical Education and Research

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2013

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 16, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 27, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 30, 2015

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 3, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 1, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2015

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 9151/PG-2Trg/2012

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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