- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00778219
Comparison of Heart Rate Variability Among Tracheal Intubation Methods
Comparison of Autonomic Stimulation Among Different Tracheal Intubation Methods -- Using Non-invasive Heart Rate Variability Spectral Power as an Indicator
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Tracheal intubation is a common practice during general anesthesia. Laryngoscope and lightwand are two commonly used methods of tracheal intubation. The autonomic stimulation of tracheal intubation may have adverse effect to the patients and have been investigated since many years ago. Conventional methods for assessing autonomic activity include measurement of blood catecholamine levels or measuring changes of the hemodynamic variables such as heart rate and blood pressure. The former is invasive and noncontinuous, and the latter is nonspecific and not accurate. Heart rate variability, a parameter derived from the spectral power of RR interval sequence in the ECG, is a non-invasive but direct measurement of autonomic activity. It is ideal and we will use this in the current research for comparing the autonomic activation during tracheal intubation of the two different methods.
Totally 60 ASA class I-II patients aged 18-65 years will be recruited. 40 of these are scheduled for various kind of surgery needing general anesthesia with tracheal intubation of single lumen tube. These 40 patients will be randomly assigned into group A and B, each with 20 patients. In group A the tracheal intubation will be performed by laryngoscope, and in group B the intubation performed by lightwand. The other 20 patients of the study, the group C, are scheduled for operations needing intubation of double lumen endobronchial cath. The intubation will be performed by laryngoscope.
ECG wil be recorded from at least 5 minutes before induction of general anesthesia and continue to at least 10 minutes after tracheal intubation. The induction and maintenance of anesthesia will performed as routine practice. The ECG records wil be analyzed offline. Power spectrum wil be generated by time-frequency analysis and the heart rate variability parameters at three periods (1)preoperation baseline (2) pre-intubation and (3) immediately post-intubation will be calculated and compared among the three groups.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
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Taipei, Taiwan, 100
- National Taiwan University Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- ASA class I-II, age 18-65, scheduled for surgery needing general anesthesia with tracheal intubation
Exclusion Criteria:
- history of major systemic diseases such as cardiovascular, pulmonary, renal and other diseases which affect autonomic activity.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
A
Patients needing intubation of single lumen tracheal tube and performed using laryngoscope
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tracheal intubation by laryngoscope or lightwand
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B
Patients needing intubation of single lumen tracheal tube and performed using lightwand
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tracheal intubation by laryngoscope or lightwand
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C
Patients needing intubation of double lumen endobronchial cath and performed using laryngoscope
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tracheal intubation by laryngoscope or lightwand
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
spectral power of heart rate variability
Time Frame: 5 minutes
|
5 minutes
|
Collaborators and Investigators
Investigators
- Principal Investigator: Hui-Hsun Huang, MD, PhD, Department of Anesthesiology, National Taiwan University Hospital
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 200808060R
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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