Paracervical Versus Intracervical Lidocaine

This study has been completed.
Sponsor:
Information provided by:
University of California, San Diego
ClinicalTrials.gov Identifier:
NCT00816751
First received: December 31, 2008
Last updated: January 2, 2009
Last verified: January 2009
  Purpose

The aim of this study is to estimate the efficacy of intracervical versus paracervical block on pain experienced during first trimester suction curettage without the use of preoperative cervical ripening. Because of the theoretical improved reliability of stromal block, the investigators hypothesize that intracervical block would produce lower pain scores than paracervical block at the time of cervical dilation.


Condition Intervention
Abortion, Induced
Pain
Procedure: Paracervical block
Procedure: Intracervical
Drug: Buffered Lidocaine, vasopressin, sodium bicarbonate

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Paracervical Versus Intracervical Lidocaine for Suction Curettage: A Randomized Controlled Trial

Resource links provided by NLM:


Further study details as provided by University of California, San Diego:

Primary Outcome Measures:
  • Pain was assessed using a 10 cm linear visual analog scale (VAS) [ Time Frame: at baseline (prior to sedation), at completion of dilation, and at completion of curettage ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Details related to the procedure including degree of dilation, size of largest curette used, and any complications were also recorded. [ Time Frame: During and after the procedure ] [ Designated as safety issue: No ]

Enrollment: 132
Study Start Date: December 2007
Study Completion Date: February 2008
Primary Completion Date: February 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1 Procedure: Paracervical block
The paracervical block was administered using 20 ml of buffered lidocaine and a 5/8 inch, 25-gauge needle. A small amount was injected at the tenaculum site, and the remainder equally distributed around the cervicovaginal junction at 3, 5, 7, and 9 o'clock. The depth was standardized at 5/8 inch by inserting the needle to the hub.
Drug: Buffered Lidocaine, vasopressin, sodium bicarbonate
The buffered lidocaine preparation for both block techniques consisted of 50 mL of 1% lidocaine, 5 units of vasopressin, and 5 mL 8% sodium bicarbonate.
Experimental: 2 Procedure: Intracervical
The intracervical block was administered using 20 ml of buffered lidocaine and a 1-1/2 inch, 20 gauge needle in order to overcome the increased resistance to injection caused by the cervical stroma. A small amount was injected at the tenaculum site, and the remainder into the cervical stroma at 12, 3, 6, and 9 o'clock, at a depth of 1-1/2 inch by inserting the needle to the hub.
Drug: Buffered Lidocaine, vasopressin, sodium bicarbonate
The buffered lidocaine preparation for both block techniques consisted of 50 mL of 1% lidocaine, 5 units of vasopressin, and 5 mL 8% sodium bicarbonate.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Women presenting for elective first trimester abortion

Exclusion Criteria:

  • Gestation over 12 weeks by ultrasound
  • Weight less than 98 pounds
  • Known allergy to lidocaine
  • Known nonviable pregnancy
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00816751

Locations
United States, California
Planned Parenthood
San Diego, California, United States, 92101
Sponsors and Collaborators
University of California, San Diego
Investigators
Principal Investigator: Jennifer L Mankowski, MD UCSD
  More Information

No publications provided

Responsible Party: Jennifer L. Mankowski, MD, UCSD Department of Reproductive Medicine
ClinicalTrials.gov Identifier: NCT00816751     History of Changes
Other Study ID Numbers: ONG-08-1781
Study First Received: December 31, 2008
Last Updated: January 2, 2009
Health Authority: United States: Institutional Review Board

Keywords provided by University of California, San Diego:
Local anesthesia
Paracervical
Intracervical
Abortion
Pain
Local anesthesia for elective first trimester abortion

Additional relevant MeSH terms:
Arginine Vasopressin
Lidocaine
Vasopressins
Anesthetics
Anesthetics, Local
Anti-Arrhythmia Agents
Antidiuretic Agents
Cardiovascular Agents
Central Nervous System Agents
Central Nervous System Depressants
Coagulants
Hematologic Agents
Hemostatics
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Natriuretic Agents
Peripheral Nervous System Agents
Pharmacologic Actions
Physiological Effects of Drugs
Sensory System Agents
Sodium Channel Blockers
Therapeutic Uses
Vasoconstrictor Agents
Voltage-Gated Sodium Channel Blockers

ClinicalTrials.gov processed this record on October 22, 2014