Agarwal Nupur, Chattopadhyay Ratna, Ghosh Sanghamitra, Bhoumik Arpita, Goswami S K, Chakravarty Baidyanath
Department of Assisted Reproduction, Institute of Reproductive Medicine, HB-36/A/3, Salt Lake City, Sector-III, Kolkata, West Bengal, 700106, India.
J Assist Reprod Genet. 2017 Aug;34(8):999-1006. doi: 10.1007/s10815-017-0947-x. Epub 2017 May 24.
This study aims to describe the role of implementing good laboratory practices to improve in vitro fertilization (IVF) outcomes which are of great interest for practitioners dealing with infertility.
Certain modifications were introduced in May 2015 in our IVF laboratory like high-efficiency particulate air CODA system, steel furniture instead of wooden, use of new disinfectants like oosafe, and restriction of personnel entry along with avoidance of cosmetics like perfume to improve pregnancy rates. Volatile organic compound (VOC) meter reading was monitored at two time points and five different places in the laboratory to compare the embryonic development parameters before (group A: July 2014-April 2015) and after (group B: July 2015-April 2016) remodeling.
The IVF outcomes from 1036 cycles were associated in this study. Reduction in VOC meter readings, enhanced air quality, improvement in blastocyst formation rate, implantation, and clinical pregnancy rate were observed in the laboratory after implementation of new facilities. Results illustrated that the attention must be focused on potential hazards which expose laboratories to elevated VOC levels. Blastocyst formation rate increased around 18%. Implantation rate, clinical pregnancy rate, and live birth rate increased by around 11, 10, and 8%, respectively.
In conclusion, with proper engineering and material selection, we have been able to reduce chemical contamination and adverse effects on culture with optimized IVF results.
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本研究旨在描述实施良好实验室规范对改善体外受精(IVF)结果的作用,这对于处理不孕症的从业者而言至关重要。
2015年5月,我们的体外受精实验室进行了一些改进,如采用高效空气过滤器(HEPA)的CODA系统、用钢制家具取代木制家具、使用oosafe等新型消毒剂、限制人员进入以及避免使用香水等化妆品以提高妊娠率。在实验室的两个时间点和五个不同位置监测挥发性有机化合物(VOC)测量仪读数,以比较改造前(A组:2014年7月至2015年4月)和改造后(B组:2015年7月至2016年4月)的胚胎发育参数。
本研究纳入了1036个周期的体外受精结果。实施新设施后,实验室的VOC测量仪读数降低、空气质量改善、囊胚形成率、着床率和临床妊娠率均有所提高。结果表明,必须关注使实验室暴露于高水平VOC的潜在危害。囊胚形成率提高了约18%。着床率、临床妊娠率和活产率分别提高了约11%、10%和8%。
总之,通过适当的工程设计和材料选择,我们能够减少化学污染并优化体外受精结果,减少对培养的不利影响。
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