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Bispectral IndexNCT00760253

Compare the Side Effects and Difference Awake Level of Three TCI Propofol Formula in TVOR Patients

An observational study of Bispectral Index and Transcutaneous Carbon Dioxide, run by National Taiwan University Hospital at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is to find the fewer side effects formula of anesthesia for TVOR patients, to compare the BIS level during emergence and to find the correlation between BIS and transcutaneous carbon dioxide concentration. Read more about this study

Who is it for?
Ages 25 to 45 years, women onlyHealthy volunteers can take part
Type of treatment
Injection or infusion
How many people
118 participants
Where
1 siteTaiwan
Study dates
Sep 2008to Dec 2008
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: ASA physical status I or II women age between 25 and 45 y/o participating to receive TVOR procedure.

Who may be able to join

  • ASA physical status I or II women age between 25 and 45 y/o participating to receive TVOR

Who cannot join

  • Allergy history to alfentanyl, propofol or lidocaine

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • Department of Anesthesiology, National Taiwan University Hospital

    Taipei

Other trials in Taiwan

About this study

Official title: Compare the Side Effects and Differences Awake Level of Propofol by Using Three TCI Formula of Anesthesia in TVOR Patients

This study is to find the fewer side effects formula of anesthesia for TVOR patients, to compare the BIS level during emergence and to find the correlation between BIS and transcutaneous carbon dioxide concentration.

Read the detailed description

Transvaginal oocyte retrieval (TVOR) is a procedure often used in infertility women . During the procedure, sedation, analgesia or anesthesia are often required. Propofol and alfentanyl are used for these patients for years, but these drugs are used in intravenous form and can be found in follicular fluid. Although further investigation needs to be undertaken to investigate any potential influence on fertilization and implantation rates, we anesthesiologist want to lower the use of drugs in these women. Target-controlled infusion (TCI) pumps can estimate and calculate the target and plasma concentration of propofol. By using these pumps , we can estimate the stable concentration of drugs. Besides, Bispectral index (BIS) monitor can help us to evaluate awareness or unarousable amnesia when we turn lower the drug use and keep patients amnesia during the procedure. Transcutaneous carbon dioxide monitor (tcCO2) can mimic the level of CO2 in patients by using noninvasive method. During anesthesia, CO2 will retain and may induce CO2 nacrosis, so we use these noninvasive method to help us to detect CO2 level preventing CO2 nacrosis and to see if there are any relationship with BIS.

Keywords
target control infusion, alfentanyl, propofol, BIS
Medical subject headings
Postoperative Nausea and Vomiting

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00760253
Study groupRoleWhat they receive
1pure propofol by TCI pump with titration.
210ug/kg alfentanyl bolus and propofol TCI pump infusion with titration
320ug/kg alfentanyl bolus and propofol TCI pump infusion with titration

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Vital signs changes and side effects of drugs among groups

    Measured: pre-anesthesia, post-anesthesia, and one hour post-anesthesia

Secondary outcomes (1)
  1. Correlation between transcutaneous carbon dioxide and BIS (bispectral index)

    Measured: From drug infusion stopped to patients awake (per minute)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Sep 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionOct 2008
  4. Study completionDec 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
118 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00760253
Sponsor's protocol ID
200807070R
Status last verified
Dec 2008
First submitted
25 Sep 2008
Last updated
15 Dec 2009
Results posted
No
Data monitoring committee
No

Publications

  • Sherry E. Admixture of propofol and alfentanil. Use for intravenous sedation and analgesia during transvaginal oocyte retrieval. Anaesthesia. 1992 Jun;47(6):477-9. doi: 10.1111/j.1365-2044.1992.tb02268.x.

    PubMed 1616081
  • Eger EI, White PF, Bogetz MS. Clinical and economic factors important to anaesthetic choice for day-case surgery. Pharmacoeconomics. 2000 Mar;17(3):245-62. doi: 10.2165/00019053-200017030-00003.

    PubMed 10947300
  • Handa-Tsutsui F, Kodaka M. Effect of nitrous oxide on propofol requirement during target-controlled infusion for oocyte retrieval. Int J Obstet Anesth. 2007 Jan;16(1):13-6. doi: 10.1016/j.ijoa.2006.08.001. Epub 2006 Nov 27.

    PubMed 17125991
  • Soussis I, Boyd O, Paraschos T, Duffy S, Bower S, Troughton P, Lowe J, Grounds R. Follicular fluid levels of midazolam, fentanyl, and alfentanil during transvaginal oocyte retrieval. Fertil Steril. 1995 Nov;64(5):1003-7.

    PubMed 7589618
  • Chhajed PN, Rajasekaran R, Kaegi B, Chhajed TP, Pflimlin E, Leuppi J, Tamm M. Measurement of combined oximetry and cutaneous capnography during flexible bronchoscopy. Eur Respir J. 2006 Aug;28(2):386-90. doi: 10.1183/09031936.06.00088005. Epub 2006 Apr 26.

    PubMed 16641122
  • Turnbull D, Furlonger A, Andrzejowski J. The influence of changes in end-tidal carbon dioxide upon the Bispectral Index. Anaesthesia. 2008 May;63(5):458-62. doi: 10.1111/j.1365-2044.2007.05399.x.

    PubMed 18412642
  • Rigouzzo A, Girault L, Louvet N, Servin F, De-Smet T, Piat V, Seeman R, Murat I, Constant I. The relationship between bispectral index and propofol during target-controlled infusion anesthesia: a comparative study between children and young adults. Anesth Analg. 2008 Apr;106(4):1109-16, table of contents. doi: 10.1213/ane.0b013e318164f388.

    PubMed 18349180
  • Wang LP, McLoughlin P, Paech MJ, Kurowski I, Brandon EL. Low and moderate remifentanil infusion rates do not alter target-controlled infusion propofol concentrations necessary to maintain anesthesia as assessed by bispectral index monitoring. Anesth Analg. 2007 Feb;104(2):325-31. doi: 10.1213/01.ane.0000252966.03103.89.

    PubMed 17242088
  • Jeleazcov C, Ihmsen H, Schmidt J, Ammon C, Schwilden H, Schuttler J, Fechner J. Pharmacodynamic modelling of the bispectral index response to propofol-based anaesthesia during general surgery in children. Br J Anaesth. 2008 Apr;100(4):509-16. doi: 10.1093/bja/aem408. Epub 2008 Feb 12.

    PubMed 18270231

Questions about this trial

What is this clinical trial studying?

An observational study of Bispectral Index and Transcutaneous Carbon Dioxide, run by National Taiwan University Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Dec 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Vital signs changes and side effects of drugs among groups (time frame: pre-anesthesia, post-anesthesia, and one hour post-anesthesia). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00760253, which also lists 9 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Dec 2009.

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