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Experience of Pain During Oocyte Retrieval- a Comparison Between Two Aspiration Needles

This study has been completed.
Information provided by (Responsible Party):
Vitrolife Identifier:
First received: June 17, 2009
Last updated: October 28, 2013
Last verified: October 2013
The purpose of the study is to compare the pain experience between the patients that have had their transvaginal oocytes retrieval with ultrasound guidance performed with reduced single lumen needle (Vitrolife Sweden AB, Gothenburg) with the patients that have had follicle aspiration needle, 1.4 outer diameter (Vitrolife Sweden AB, Gothenburg), during the procedure.

Condition Intervention
Device: Swemed Follicle Aspiration Set Reduced Single Lumen
Device: Swemed Follicle Aspiration Set Single Lumen (1.4 mm)

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Experience of Pain During Oocyte Retrieval- a Comparison Between Two Aspiration Needles

Further study details as provided by Vitrolife:

Primary Outcome Measures:
  • Visual Analogue Scale [ Time Frame: After the oocyte retrieval and before the patient leaves the operation room ]

Secondary Outcome Measures:
  • Intervention because of bleeding [ Time Frame: 2 hours after the oocyte retrieval ]

Estimated Enrollment: 280
Study Start Date: June 2009
Study Completion Date: December 2009
Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Thin Follicle Aspiration Needle Device: Swemed Follicle Aspiration Set Reduced Single Lumen
Thin tip to penetrate the tissue
Active Comparator: Standard Follicle Aspiration Needle Device: Swemed Follicle Aspiration Set Single Lumen (1.4 mm)
Standard (1.4 mm) needle to penetrate the tissue

Detailed Description:
Although the patient is sedated and local analgesia has been given, transvaginal oocytes retrieval with ultrasound guidance can still cause a lot of pain, both during and after the procedure. To reduce the pain, some clinics prefer to use needles as thin as 0.8 mm (outer diameter, OD). A disadvantage with these needles is the increased aspiration time. Therefore a new needle has been developed that has the possibility to reduce pain without a large increase in aspiration time. The needle has a 50 mm long tip with an outer diameter of 0.9 mm. The remaining part of the needle is 300 mm long with an outer diameter of 1.4 mm.

Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • The patient has signed an informed consent form before the oocyte retrieval
  • The patient is undergoing oocyte retrieval with local anaesthesia
  • The patient can speak and understand Swedish

Exclusion Criteria:

  • The patient has previously participated in Vitrolife-needle-01 study
  • The patient has a body mass index ≥35
  • Other contra indicator for oocyte retrieval
  Contacts and Locations
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Please refer to this study by its identifier: NCT00924885

IVF-kliniken Falun
Falun, Sweden, 79182
Fertilitetscentrum Göteborg
Göteborg, Sweden, 40229
Reproduktionmedicinskt Center, Universitetssjukhuset MAS
Malmö, Sweden, 205 02
Fertilitetsenheten K59 Karolinska Universitetssjukhuset, Huddinge
Stockholm, Sweden, 141 86
Sponsors and Collaborators
Principal Investigator: Torbjörn Hillensjö, MD PhD Fertility Center Scandinavia
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Vitrolife Identifier: NCT00924885     History of Changes
Other Study ID Numbers: Vitrolife-needle-01
Study First Received: June 17, 2009
Last Updated: October 28, 2013

Keywords provided by Vitrolife:
Reproductive Medicine
Fertilization in Vitro
Oocyte retrieval
Local anaesthesia
Aspiration needle

Additional relevant MeSH terms:
Genital Diseases, Male
Genital Diseases, Female processed this record on May 25, 2017