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Clinical and Experimental Obstetrics & Gynecology  2014, Vol. 41 Issue (1): 37-40    DOI: 10.12891/ceog16092014
Original Research Previous articles | Next articles
A study comparing three different laser-assisted hatching techniques
B. Ma1, *(), Y. Wang1, H. Zhang2, X. Zhang1
1Reproductive Center, Shenzhen Police Hospital, Shenzhen
2Department of Obstetrics and Gynecology, Guangxi Medical University, Nanning (China)
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Abstract  
Purpose of investigation: Laser-assisted hatching (LAH) is recognized as a useful technology to improve clinical pregnancy rates and implantation rates. This study reports the differences between a new LAH method and two conventional LAH techniques. Materials and Methods: The authors studied 151 patients with repeated implantation failure, who were divided into three groups. Results: In group 1, the zona pellucida (ZP) was opened using LAH (n = 52). In group 2, laser-assisted thinning was performed to dissolve the outer layer of the ZP (n = 49). In group 3, laser-assisted thinning was performed to dissolve the inner layer of the ZP (n = 50). The clinical pregnancy rates and implantation rates among the groups were compared. The results demonstrate that there are significant differences in the clinical pregnancy rates and implantation rates between group 3 and the other two groups. Conclusion: Performing laser-assisted thinning to dissolve the inner layer of the ZP markedly increases the pregnancy rates and implantation rates of patients with repeated implantation failure.
Key words:  Laser-assisted hatching      Recurrent implantation failure      Clinical pregnancy rates      Implantation rates     
Published:  10 February 2014     
*Corresponding Author(s):  B. MA     E-mail:  mb253000@gmail.com

Cite this article: 

B. Ma, Y. Wang, H. Zhang, X. Zhang. A study comparing three different laser-assisted hatching techniques. Clinical and Experimental Obstetrics & Gynecology, 2014, 41(1): 37-40.

URL: 

https://ceog.imrpress.com/EN/10.12891/ceog16092014     OR     https://ceog.imrpress.com/EN/Y2014/V41/I1/37

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