体外受精-胚胎移植周期中注射人绒毛膜促性腺激素日患者血清孕酮水平与妊娠结局的相关性

目的 探讨体外受精-胚胎移植(IVF-ET)周期中注射人绒毛膜促性腺激素(hCG)日患者血清孕酮水平与临床妊娠结局的相关性.方法 对2002年3月-2007年4月在南京医科大学第一附属医院生殖医学科注射hCG日有血清孕酮水平检测结果的786个IVF周期进行回顾性分析.每个周期均采用促性腺激素释放激素激动剂(GnRH-a)降调节,采用促性腺激素(Gn)促排卵.将孕酮水平为5.5、6.0、6.5、7.0、7.5、8.0、8.5和9.0 nmol/L设定为不同界值,孕酮水平<相应界值者为低孕酮水平,≥相应界值者为高孕酮水平,分别比较采用不同界值时高、低孕酮水平患者的各项实验室及临床检测指标.结果 786个周期中,采用不同的孕酮水平界值时,注射hCG日高孕酮水平与低孕酮水平患者的正常受精率、优质胚胎率、种植率、生化妊娠率、临床妊娠率、活产率比较,差异均无统计学意义(P>0.05);以8.5及9.0 nmol/L为孕酮水平界值时,高孕酮水平患者的早期流产率分别为27.3%(3/11)和3/7,均高于低孕酮水平者[分别为8.8%(26/297)和8.6%(26/301)],差异均有统计学意义(P<0.05);以9.0 nmol/L为孕酮水平界值时,高孕酮水平患者的总流产率为3/7,高于低孕酮水平者[11.0%(34/301)],差异也有统计学意义(P<0.05).结论 注射hCG日血清孕酮水平与临床妊娠率及活产率无关,当以8.5或9.0 nmol/L为孕酮水平界值时,早期流产率或总流产率与高孕酮水平相关.

Correlation between serum progesterone level at the day with human chorionic gonadotrophin administration and the outcome of pregnancy in in-vitro fertilization

Objective To investigate the relationship between serum progesterone level at the day with human chorionic gonadotrophin (hCG) administration and pregnant outcome from in in-vitro fertilization-embryo transfer(IVF-ET). Methods From Mar. 2002 to Apr. 2007, 786 cycles with serum progesterone measurement on the day of hCG administration for final oocyte maturation in IVF were analyzed retrospectively in Reproductive Medicine Center in First Affiliated Hospital of Nanjing Medical University.All stimulations were down-regulated with gronadotrophin release hormone agonist (GnRH-a) in both long protocols and short protocols before gonadotrophin stimulation. When the thresholds of serum progesterone were set at 5.5, 6.0,6.5,7.0,7.5,8.0,8.5 and 9.0 nmol/L, respectively. If the level of progesterone was less than the thresholds, those patients were in lower progesterone group, on the contrary, more than the threshold value, those patients were in higher progesterone group. The laboratory results and the clinical outcomes between all patients at lower and higher progesterone group at different thresholds value were analyzed. Results The rate of normal fertilization, quality embryos, successful implantation, chemical pregnancy, clinical pregnancy and live birth did not exhibit remarkable difference between patients with higher and lower serum progesterone level at multiple thresholds on the day of hCG administration in the 786 cycles (P >0.05). However, when the thresholds of serum progesterone were at 8.5 and 9.0 nmol/L, early abortion rates of 27.3% (3/11) and 3/7 in higher progesterone group were significantly higher than 8.8% (26/297) and 8.6% (26/301) in lower progesterone group (P<0.05). And the total abortion rates of 3/7 in higher progesterone group were significantly higher than 11.0% (34/301) in lower progesterone group when the thresholds of serum progesterone were 9.0 nmol/L (P<0.05). Conclusions This study did not prove the correlationship between progesterone level at the clay with hCG administration and the probability of clinical pregnancy or live birth. However, early abortion rates or the total abortion rates were associated with higher progesterone level when the thresholds of serum progesterone were at 8.5 nmol/L or 9.0 nmoL/L.