Paracervical Block for Pain Control in First Trimester Abortion

NCT01094366 | Completed Phase 4

• 1 other identifier: OHSU IRB 6071
• Study Type: interventional
• Target: 121
• Locations: 1 country
• Sites: 1

Brief Summary

Many woman undergoing a surgical abortion receive a paracervical nerve block for pain reduction, in which lidocaine (a numbing medication) is injected around the cervix. These injections numb the cervix and possibly the lower part of the uterus. However, the injection can be uncomfortable and it is not well known whether it is effective in reducing pain. The purpose of this study is to determine the level of pain women experience with a surgical abortion and the effect that paracervical block might have on that pain.

Conditions

Legal Abortion With Complication; Pain

Keywords

Paracervical Block; pain control; abortion

Outcome Measures

Primary Outcomes (1)

• Pain reported with cervical dilation

  Distance (mm) from the left of the 100-mm VAS scale (reflecting magnitude of pain) recorded at time of cervical dilation.

  1 Year

Secondary Outcomes (4)

• Anticipated and reported pain at various time points

  1 Year

• Anxiety reported with the pain expected during the procedure and the procedure itself.

  1 Year

• Satisfaction reported with pain control and overall procedure

  1 Year

• Need for additional intraoperative and/or postoperative pain medication

  1 Year

Study Arms (2)

No Paracervical Block for Pain Control

SHAM COMPARATOR

Subject will not receive a paracervical block during the procedure

Procedure: Sham Paracervical Block

Paracervical Block for Pain Control

ACTIVE COMPARATOR

Subject will receive a paracervical block during the procedure.

Procedure: Paracervical Block

Interventions

Paracervical Block PROCEDURE

Subject receives 20 mL paracervical block with 18 mL of 1% Lidocaine solution buffered with 2 mL 8.4% sodium bicarbonate for pain control.

Paracervical Block for Pain Control

Sham Paracervical Block PROCEDURE

In the non-intervention group, the surgeon performs a sham PCB during which 2 mL buffered lidocaine solution are injected at the tenaculum site, after which a capped needle gently simulates the standard PCB procedure.

No Paracervical Block for Pain Control

Eligibility Criteria

• Age: 18 Years - 60 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Age: 18 years or older
• Voluntarily requesting pregnancy termination
• Ultrasound confirmed intrauterine pregnancy up to 10 6/7 weeks gestational age
• Good general health
• English or Spanish speaking
• Be able and willing to sign an informed consent and agree to terms of the study

You may not qualify if:

• Gestational ages over 11 0/7 weeks, due to routine misoprostol use at our institutions
• Incomplete abortion
• Required or requested narcotics or IV sedation (prior to randomization)
• Patients who refuse Ibuprofen and paracervical blocks
• Contraindications or allergies to lidocaine, ibuprofen or ativan
• Significant physical or mental health condition
• Adnexal mass or tenderness on pelvic exam consistent with pelvic inflammatory disease
• Patients with known hepatic disease
• Women, who in the opinion of the investigator are not suitable for the study protocol

Sponsors & Collaborators

• Oregon Health and Science University: lead
• Planned Parenthood Federation of America: collaborator

Study Sites (1)

Planned Parenthood Columbia Willamette

Portland, Oregon, 97212, United States

Location

Related Publications (34)

• Allen RH, Kumar D, Fitzmaurice G, Lifford KL, Goldberg AB. Pain management of first-trimester surgical abortion: effects of selection of local anesthesia with and without lorazepam or intravenous sedation. Contraception. 2006 Nov;74(5):407-13. doi: 10.1016/j.contraception.2006.06.002. Epub 2006 Aug 2.

  PMID: 17046383 BACKGROUND

• Belanger E, Melzack R, Lauzon P. Pain of first-trimester abortion: a study of psychosocial and medical predictors. Pain. 1989 Mar;36(3):339-350. doi: 10.1016/0304-3959(89)90094-8.

  PMID: 2710563 BACKGROUND

• Berger GS, Tyler CW, Harrod EK. Maternal deaths associated with paracervical block anesthesia. Am J Obstet Gynecol. 1974 Apr 15;118(8):1142-3. doi: 10.1016/0002-9378(74)90698-x. No abstract available.

  PMID: 4817653 BACKGROUND

• Blanco LJ, Reid PR, King TM. Plasma lidocaine levels following paracervical infiltration for aspiration abortion. Obstet Gynecol. 1982 Oct;60(4):506-8.

  PMID: 7121936 BACKGROUND

• Cetin A, Cetin M. Effect of deep injections of local anesthetics and basal dilatation of cervix in management of pain during legal abortions. A randomized, controlled study. Contraception. 1997 Aug;56(2):85-7. doi: 10.1016/s0010-7824(97)00096-6.

  PMID: 9315416 BACKGROUND

• Donati S, Medda E, Proietti S, Rizzo L, Spinelli A, Subrizi D, Grandolfo ME. Reducing pain of first trimester abortion under local anaesthesia. Eur J Obstet Gynecol Reprod Biol. 1996 Dec 27;70(2):145-9. doi: 10.1016/s0301-2115(95)02583-9.

  PMID: 9119094 BACKGROUND

• Edelman A, Nichols MD, Leclair C, Astley S, Shy K, Jensen JT. Intrauterine lidocaine infusion for pain management in first-trimester abortions. Obstet Gynecol. 2004 Jun;103(6):1267-72. doi: 10.1097/01.AOG.0000127981.53911.0e.

  PMID: 15172863 BACKGROUND

• Edelman A, Nichols MD, Leclair C, Jensen JT. Four percent intrauterine lidocaine infusion for pain management in first-trimester abortions. Obstet Gynecol. 2006 Feb;107(2 Pt 1):269-75. doi: 10.1097/01.AOG.0000194204.71925.4a.

  PMID: 16449111 BACKGROUND

• Glantz JC, Shomento S. Comparison of paracervical block techniques during first trimester pregnancy termination. Int J Gynaecol Obstet. 2001 Feb;72(2):171-8. doi: 10.1016/s0020-7292(00)00292-7.

  PMID: 11166751 BACKGROUND

• Gomez PI, Gaitan H, Nova C, Paradas A. Paracervical block in incomplete abortion using manual vacuum aspiration: randomized clinical trial. Obstet Gynecol. 2004 May;103(5 Pt 1):943-51. doi: 10.1097/01.AOG.0000123269.86525.c4.

  PMID: 15121569 BACKGROUND

• Grimes DA, Cates W Jr. Deaths from paracervical anesthesia used for first-trimester abortion, 1972-1975. N Engl J Med. 1976 Dec 16;295(25):1397-9. doi: 10.1056/NEJM197612162952503.

  PMID: 980095 BACKGROUND

• Hakim-Elahi E, Tovell HM, Burnhill MS. Complications of first-trimester abortion: a report of 170,000 cases. Obstet Gynecol. 1990 Jul;76(1):129-35.

  PMID: 2359559 BACKGROUND

• Jensen MP, Chen C, Brugger AM. Interpretation of visual analog scale ratings and change scores: a reanalysis of two clinical trials of postoperative pain. J Pain. 2003 Sep;4(7):407-14. doi: 10.1016/s1526-5900(03)00716-8.

  PMID: 14622683 BACKGROUND

• Kan AS, Caves N, Wong SY, Ng EH, Ho PC. A double-blind, randomized controlled trial on the use of a 50:50 mixture of nitrous oxide/oxygen in pain relief during suction evacuation for the first trimester pregnancy termination. Hum Reprod. 2006 Oct;21(10):2606-11. doi: 10.1093/humrep/del234. Epub 2006 Jun 21.

  PMID: 16790607 BACKGROUND

• Kan AS, Ng EH, Ho PC. The role and comparison of two techniques of paracervical block for pain relief during suction evacuation for first-trimester pregnancy termination. Contraception. 2004 Aug;70(2):159-63. doi: 10.1016/j.contraception.2004.03.013.

  PMID: 15288222 BACKGROUND

• Lopez JC, Vigil-De Gracia P, Vega-Malek JC, Ruiz E, Vergara V. A randomized comparison of different methods of analgesia in abortion using manual vacuum aspiration. Int J Gynaecol Obstet. 2007 Nov;99(2):91-4. doi: 10.1016/j.ijgo.2007.05.023. Epub 2007 Jul 12.

  PMID: 17628562 BACKGROUND

• Miller L, Jensen MP, Stenchever MA. A double-blind randomized comparison of lidocaine and saline for cervical anesthesia. Obstet Gynecol. 1996 Apr;87(4):600-4. doi: 10.1016/0029-7844(95)00463-7.

  PMID: 8602315 BACKGROUND

• Nichols, M. D., Halvorson-Boyd, G., Goldstein, R., Gevirtz, C., & Healow, D. (2009). Pain management. In M. Paul, E. S. Lichtenberg, L. Borgatta, D. A. Grimes & P. G. Stubblefield (Eds.), Management of unintended and abnormal pregnancy. (pp. 90-110): Wiley-Blackwell.

  BACKGROUND

• O'Connell K, Jones HE, Simon M, Saporta V, Paul M, Lichtenberg ES; National Abortion Federation Members. First-trimester surgical abortion practices: a survey of National Abortion Federation members. Contraception. 2009 May;79(5):385-92. doi: 10.1016/j.contraception.2008.11.005. Epub 2008 Dec 11.

  PMID: 19341852 BACKGROUND

• Owolabi OT, Moodley J. A randomized trial of pain relief in termination of pregnancy in South Africa. Trop Doct. 2005 Jul;35(3):136-9. doi: 10.1258/0049475054620923.

  PMID: 16105333 BACKGROUND

• Phair N, Jensen JT, Nichols MD. Paracervical block and elective abortion: the effect on pain of waiting between injection and procedure. Am J Obstet Gynecol. 2002 Jun;186(6):1304-7. doi: 10.1067/mob.2002.123734.

  PMID: 12066113 BACKGROUND

• Rabin JM, Spitzer M, Dwyer AT, Kaiser IH. Topical anesthesia for gynecologic procedures. Obstet Gynecol. 1989 Jun;73(6):1040-4. doi: 10.1097/00006250-198906000-00027.

  PMID: 2657523 BACKGROUND

• Renner RM, Jensen JT, Nichols MD, Edelman A. Pain control in first trimester surgical abortion. Cochrane Database Syst Rev. 2009 Apr 15;2009(2):CD006712. doi: 10.1002/14651858.CD006712.pub2.

  PMID: 19370649 BACKGROUND

• Rowbotham MC. What is a "clinically meaningful" reduction in pain? Pain. 2001 Nov;94(2):131-132. doi: 10.1016/S0304-3959(01)00371-2. No abstract available.

  PMID: 11690725 BACKGROUND

• Smith GM, Stubblefield PG, Chirchirillo L, McCarthy MJ. Pain of first-trimester abortion: its quantification and relations with other variables. Am J Obstet Gynecol. 1979 Mar 1;133(5):489-98. doi: 10.1016/0002-9378(79)90282-5.

  PMID: 443287 BACKGROUND

• Strauss LT, Gamble SB, Parker WY, Cook DA, Zane SB, Hamdan S; Centers for Disease Control and Prevention (CDC). Abortion surveillance--United States, 2004. MMWR Surveill Summ. 2007 Nov 23;56(9):1-33.

  PMID: 18030283 BACKGROUND

• Suprapto K, Reed S. Naproxen sodium for pain relief in first-trimester abortion. Am J Obstet Gynecol. 1984 Dec 15;150(8):1000-1. doi: 10.1016/0002-9378(84)90399-5.

  PMID: 6507524 BACKGROUND

• Todd KH, Funk KG, Funk JP, Bonacci R. Clinical significance of reported changes in pain severity. Ann Emerg Med. 1996 Apr;27(4):485-9. doi: 10.1016/s0196-0644(96)70238-x.

  PMID: 8604867 BACKGROUND

• Safe Abortion: Technical and Policy Guidance for Health Systems. 2nd edition. Geneva: World Health Organization; 2012. Available from http://www.ncbi.nlm.nih.gov/books/NBK138196/

  PMID: 23700650 BACKGROUND

• Wiebe E, Podhradsky L, Dijak V. The effect of lorazepam on pain and anxiety in abortion. Contraception. 2003 Mar;67(3):219-21. doi: 10.1016/s0010-7824(02)00516-4.

  PMID: 12618257 BACKGROUND

• Wiebe ER. Comparison of the efficacy of different local anesthetics and techniques of local anesthesia in therapeutic abortions. Am J Obstet Gynecol. 1992 Jul;167(1):131-4. doi: 10.1016/s0002-9378(11)91645-7.

  PMID: 1442914 BACKGROUND

• Wiebe ER, Rawling M. Pain control in abortion. Int J Gynaecol Obstet. 1995 Jul;50(1):41-6. doi: 10.1016/0020-7292(95)02416-a.

  PMID: 7556858 BACKGROUND

• Zullo F, Pellicano M, Stigliano CM, Di Carlo C, Fabrizio A, Nappi C. Topical anesthesia for office hysteroscopy. A prospective, randomized study comparing two modalities. J Reprod Med. 1999 Oct;44(10):865-9.

  PMID: 10554747 BACKGROUND

• Renner RM, Nichols MD, Jensen JT, Li H, Edelman AB. Paracervical block for pain control in first-trimester surgical abortion: a randomized controlled trial. Obstet Gynecol. 2012 May;119(5):1030-7. doi: 10.1097/AOG.0b013e318250b13e.

  PMID: 22525915 DERIVED

MeSH Terms

Conditions

Pain; Agnosia

Interventions

Anesthesia, Obstetrical

Condition Hierarchy (Ancestors)

Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Perceptual Disorders; Neurobehavioral Manifestations; Nervous System Diseases

Intervention Hierarchy (Ancestors)

Anesthesia; Anesthesia and Analgesia

Study Officials

• Regina M Renner, MD

  Oregon Health and Science University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 4
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: DIAGNOSTIC
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 25, 2010
• First Posted: March 26, 2010
• Study Start: April 1, 2010
• Primary Completion: October 1, 2010
• Study Completion: November 1, 2012
• Last Updated: December 27, 2019

Record last verified: 2019-12

Locations

US (1)