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Year : 2021  |  Volume : 8  |  Issue : 1  |  Page : 36-39

Oocyte recovery rates in flushing versus nonflushing during oocyte retrieval in assisted reproductive techniques

Center of IVF and Human Reproduction, Sir Ganga Ram Hospital, New Delhi, India

Correspondence Address:
Abha Majumdar
Center of IVF and Human Reproduction, Sir Ganga Ram Hospital, New Delhi-110027
Shweta Mittal Gupta
Center of IVF and Human Reproduction, Sir Ganga Ram Hospital, New Delhi-110027
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/fsr.fsr_22_21

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Follicular aspiration under transvaginal ultrasound guidance is performed as part of assisted reproductive technology (ART) to retrieve oocytes for in vitro fertilization (IVF). However, controversy as to whether follicular flushing following aspiration yields a larger number of oocytes than aspiration only is ongoing. The aim of this study was to assess the safety and efficacy (oocyte recovery rates) of follicular flushing when compared with aspiration only performed in women undergoing ART. The study was conducted at Sir Gangaram Hospital, New Delhi. Retrospective data of 100 females undergoing ART was taken from September 2019 to September 2020. Patients were divided into two groups of 50 each. In first group, patients underwent oocyte retrieval using double lumen needle (flushing technique) and in the second group, single lumen needle (no flushing) were used. Females with age ≤37 years who were having ≤9 follicles, size ≥14 mm during oocyte retrieval when undergoing ARTs. Categorical variables were presented in number and percentage (%) and continuous variables, as mean ± standard deviation and median. Normality of data was tested by Kolmogorov–Smirnov test. If the normality was rejected, then nonparametric test was used. Quantitative variables were compared using Mann–Whitney test. Follicular flushing had significantly better oocyte recovery rates when compared with no flushing (P < 0.05). There was no significant difference (P > 0.05) in M2 rates in patients undergoing intracytoplasmic sperm injection (ICSI) when compared in both the groups. There was no significant difference (P > 0.05) in fertilization rates in patients undergoing IVF and ICSI, respectively, in both the groups. Double lumen needle with flushing technique gives better oocyte recovery rates in low responder women undergoing ARTs. Hence, follicular flushing may be considered in such patients for oocyte retrieval.

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