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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
257
Thin tip to penetrate the tissue
Standard (1.4 mm) needle to penetrate the tissue
IVF-kliniken Falun
Falun, Sweden
Fertilitetscentrum Göteborg
Gothenburg, Sweden
Reproduktionmedicinskt Center, Universitetssjukhuset MAS
Malmö, Sweden
Fertilitetsenheten K59 Karolinska Universitetssjukhuset, Huddinge
Stockholm, Sweden
Visual Analogue Scale
Rating of pain was performed by self-assessment by means of Visual Analogue Scale (VAS) consisting of a line oriented vertically on a paper with a range from 0 mm (no pain) to 100 mm (unbearable pain).
Time frame: After the oocyte retrieval and before the patient leaves the operation room e.g. within a maximum of 30 minutes.
Intervention Because of Bleeding
Vaginal bleeding during or after the procedure was graded subjectively by the physician as (i) less than normal, (ii) normal or (iii) more than normal.
Time frame: During and directly after oocyte retrieval
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.