Journal of International Reproductive Health/Family Planning ›› 2022, Vol. 41 ›› Issue (1): 74-78.doi: 10.12280/gjszjk.20210434

• Review • Previous Articles     Next Articles

Research Progress on Diagnostic Criteria of Recurrent Pregnancy Loss

LYU Xiao, TANG Hai, ZHANG Jian-wei()   

  1. School of Traditional Chinese Medicine(LYU Xiao), First School of Clinical Medicine (TANG Hai), Shandong University of Traditional Chinese Medicine, Jinan 250014, China;Reproductive and Genetic Center of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China (ZHANG Jian-wei)
  • Received:2021-09-16 Published:2022-01-15 Online:2022-02-17
  • Contact: ZHANG Jian-wei E-mail:zhangjianwei1970@sina.com

Abstract:

Recurrent pregnancy loss (RPL) is a complex disease affected by multiple factors. There is no consensus on the diagnostic criteria for RPL. In this paper, a total of 23 diagnostic criteria for RPL were summarized through literature search, and the number of miscarriages, gestational weeks of miscarriage, whether being consecutive and pregnancy definition were reviewed. There is no general agreement on the diagnostic criteria for RPL as follows: the number of miscarriages as a main controversy between 2 and 3 times, the gestational weeks of miscarriage from 10 to 28 weeks, 69.6% of diagnostic criteria emphasized continuity of miscarriage, and the pregnancy loss defined as clinically established pregnancy loss. However, in recent years, biochemical pregnancy loss or non-visualized pregnancy loss has gradually been included in the definition of RPL. It has been suggested that women who meet the diagnostic criteria for RPL should be divided into the primary group and the secondary group, and that the study in subgroups can avoid the risk of bias. The differences in diagnostic criteria have hindered further development of RPL diagnosis and research. Therefore, a more in-depth and comprehensive study to develop and promote standardized diagnostic criteria for RPL should be the focus of future research.

Key words: Abortion,habitual, Diagnosis, Benchmarking, Review