Spinal Anesthesia for Cesarean Delivery: Bupivacaine With or Without Fentanyl

NCT ID: NCT00808327

Last Updated: 2009-11-20

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

NA

Total Enrollment

140 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-01-31

Study Completion Date

2009-08-31

Brief Summary

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The safest form of anesthesia for Cesarean section is a spinal anesthetic. All spinal anesthetics contain a local anesthetic and/or a narcotic. A drug named bupivacaine is the most commonly used local anesthetic in spinal anesthetics for Cesarean deliveries in North America. Another drug named fentanyl is the most commonly used narcotic. This study will look at whether a spinal anesthetic with 15mg of bupivacaine alone will be the same as a spinal anesthetic with 12mg of bupivacaine and 15ug of fentanyl.

Detailed Description

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There have been many studies looking at different doses and combinations of bupivacaine and fentanyl but there is no agreement among anesthesiologists as to the best combination of drugs.

The main problem with bupivacaine is that it causes hypotension (low blood pressure). When fentanyl is added to bupivacaine, a lower dose of bupivacaine can be used so that there is less of a fall in blood pressure. The main problem with fentanyl is itchiness and sleepiness. In the case of an emergency Cesarean section, the extra time needed to draw-up and administer a second medication may make a difference to the health of the baby.

Our goal is to determine whether high dose bupivacaine (15mg) alone will produce spinal anaesthesia for cesarean delivery equivalent to 12mg of intrathecal hyperbaric bupivacaine in combination with 15ug of intrathecal fentanyl.

Conditions

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Pain

Keywords

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Cesarean section Spinal

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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1

Bupivacaine alone

Group Type ACTIVE_COMPARATOR

Bupivacaine

Intervention Type DRUG

A single, 15mg, intrathecal dose of bupivacaine.

2

Bupivacaine plus Fentanyl

Group Type ACTIVE_COMPARATOR

Bupivacaine, fentanyl

Intervention Type DRUG

A single, 12 mg, intrathecal dose of bupivacaine, plus 15 micrograms of fentanyl

Interventions

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Bupivacaine

A single, 15mg, intrathecal dose of bupivacaine.

Intervention Type DRUG

Bupivacaine, fentanyl

A single, 12 mg, intrathecal dose of bupivacaine, plus 15 micrograms of fentanyl

Intervention Type DRUG

Other Intervention Names

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Marcaine Marcaine

Eligibility Criteria

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Inclusion Criteria

* healthy patients (ASA 1 or 2)
* BMI \< 40
* height between 5 \& 6 feet

Exclusion Criteria

* parturients with pregnancy induced hypertension or preeclampsia
* parturients with significant cardiac, renal or other organ-system disease which preclude choice of spinal anesthesia
* emergency delivery
* triplet or greater multiple gestation
Minimum Eligible Age

16 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Samuel Lunenfeld Research Institute, Mount Sinai Hospital

OTHER

Sponsor Role lead

Responsible Party

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Mount Sinai Hospital

Principal Investigators

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Alison J Macarthur, MD

Role: PRINCIPAL_INVESTIGATOR

MOUNT SINAI HOSPITAL

Locations

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Mount Sinai Hospital

Toronto, Ontario, Canada

Site Status

Countries

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Canada

Other Identifiers

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08-03

Identifier Type: -

Identifier Source: org_study_id