Vasopressin Versus Epinephrine in Myomectomy

January 21, 2016 updated by: Taejong Song, CHA University

Use of Vasopressin Versus Epinephrine to Reduce Hemorrhage During Myomectomy: a Randomized Controlled Trial

Uterine myomas (fibroids or leiomyomas) are the most common benign tumor of the female genital tract and the leading indication for hysterectomy. Although hysterectomy is the definitive treatment of myomas, myomectomy remains the gold standard treatment for women desiring future fertility and uterine conservation3. However, bleeding is often a problem in myomectomy and can results in intraoperative hypovolemic shock, postoperative anemia, pelvic infection, and adhesions with infertility.

A number of interventions have been introduced to reduce hemorrhage during myomectomy. Two categories of interventions can be identified: (a) Vascular interventions on uterine and/or ovarian arteries such as artery clamping, tying, or embolization; (b) pharmacologic interventions such as vasopressin, epinephrine, oxytocin, ergometrine, misoprostol, sulprostone, and gonadotropin-releasing hormone (GnRH) agonist4-11. Of these, intraoperative local injection of vasopressin causing vasospasm is most commonly used. However, there is not a wide consensus on the use of this agent because of serious side effects reported in literature. In addition, in several countries, including France and Italy, vasopressin has not been commercialized because of its potential adverse effects on cardiovascular system.

Epinephrine also induces a vasoconstrictive effect on tissue that lasts longer than that of vasopressin (5-6 hours versus 7-35 minutes) and is used during various gynecological surgeries, endoscopic resection, and dermatologic procedures to reduce blood loss. However, there are a few studies for the use of epinephrine to reduce hemorrhage during myomectomy. Furthermore, a randomized comparison of epinephrine and vasopressin as hemostatic agents during myomectomy has never been conducted. To test the hypothesis that the injections of epinephrine and vasopressin during myomectomy are equivalent in reducing blood loss, the investigators performed this randomized controlled study.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

60

Phase

  • Phase 3

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

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

Ages Eligible for Study

16 years to 73 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • women who had myoma-related symptoms such as menorrhagia, pelvic pressure/pain, or infertility
  • women who were not pregnant at the time of presentation (i.e., negative for urine pregnancy test or last menstrual period within the last 4 weeks)
  • women who were appropriated medical status for laparoscopic surgery (American Society of Anesthesiologists Physical Status classification 1 or 2).

Exclusion Criteria:

  • any pelvic abnormalities requiring concomitant surgery
  • the presence of pedunculated subserosal or submucosal myoma as a dominant myoma
  • the presence of myoma of maximum diameter 10 cm based on the preoperative ultrasound
  • more than 4 myomas
  • treatment of GnRH agonist or unipristal acetate within 3 months before surgery
  • an inability to understand and provide written informed consent.

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Epinephrine
In the epinephrine group, we used a dilute epinephrine, 0.5 mg of epinephrine ([1/2] vial of 1mg/mL) in 50 mL of saline solution, taking care to use no more than 20 mL of solution per a subject.
Active Comparator: Vasopressin
In the vasopressin group, a dilute vasopressin, 5 units in 50 mL of saline solution, taking care to use no more than 20 mL of solution per a subject was injected.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Operative blood loss
Time Frame: Surgery date
The operative blood loss was calculated by the anesthesiology unit as the difference between the total amount of suction and irrigation plus the difference between the total gauze weight before and after surgery.
Surgery date

Collaborators and Investigators

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

Sponsor

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

May 1, 2013

Primary Completion (Actual)

March 1, 2014

Study Completion (Actual)

March 1, 2014

Study Registration Dates

First Submitted

May 21, 2013

First Submitted That Met QC Criteria

May 22, 2013

First Posted (Estimate)

May 23, 2013

Study Record Updates

Last Update Posted (Estimate)

January 22, 2016

Last Update Submitted That Met QC Criteria

January 21, 2016

Last Verified

January 1, 2016

More Information

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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