The effect of needle diameter on pain during oocyte retrieval

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Use of a thinner needle results in significantly and clinically relevant lower pain scores during oocyte retrieval, and patients in the reduced needle group requested significantly less analgesia during oocyte retrieval than patients in the standard needle group. Pain scores remained significantly lower up until 2 days after the procedure.


* Pain during OR, mean VAS (±SD): Reduced needle 4.3 (±2.0) vs. Standard needle 6.3 (±2.5).
** 1 of 3 in the randomized group for the standard needle.

REFERENCE Effect of needle diameter on pain during oocyte retrieval-a randomized controlled trial. Erato Terpsichori Iduna Antigoni Buisman, M.D.,a,b Jan Peter de Bruin, M.D., Ph.D.,a Didi Dorothea Maria Braat, M.D., Ph.D.,b and Jan Willem van der Steeg, M.D., Ph.D.a | a Department of Obstetrics and Gynaecology, Jeroen Bosch Hospital, ’s-Hertogenbosch; and b Department of Obstetrics and Gynaecology, Radboud University Medical Centre, Nijmegen, the Netherlands. Fertil. Steril. In press

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Learn more about our Sense needles and their unique design. Our needles are designed to optimise control and retrieval time and improve patient comfort. The needles features a reduced tip for less bleeding and pain, and a larger body for optimal precision and retrieval time. 

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