Factors Affecting Serum HCG Levels on the Next Day of HCG Trigger and Its Relationship with Clinical Outcomes
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摘要:
目的 探讨体外受精-胚胎移植(IVF-ET)助孕过程中人绒毛膜促性腺激素(HCG)扳机次日血清HCG水平的影响因素及其与临床结局的关系。 方法 回顾性分析2020年1月至2022年12月在昆明市第一人民医院生殖遗传中心行IVF-ET助孕的253例不孕症患者资料,根据扳机次日血清HCG水平分为4组,A组:HCG<50 IU/L,8例;B组:50 IU/L≤HCG<100 IU/L,73例;C组:100 IU/L≤HCG<150 IU/L,90例;D组:HCG≥150 IU/L,82例。分析体重指数(BMI)、扳机日雌二醇、扳机日直径≥14 mm卵泡数对扳机次日血清HCG水平的影响,以及扳机次日血清HCG水平的高低与临床结局的关系。 结果 BMI在各组间差异有统计学意义(P < 0.05)。BMI与扳机次日血清HCG水平的线性回归系数-11.896(P < 0.05),呈明显的负相关。4组获卵率、成熟(MII)卵率、正常受精率比较差异有统计学意义(P < 0.05),余观察指标差异无统计学意义(P > 0.05),但优质胚胎率、胚胎种植率、临床妊娠率随HCG水平的升高有增加的趋势。 结论 扳机后次日血清HCG水平对获卵率、MII卵率、正常受精率有显著的影响,可能影响优质胚胎率、临床妊娠率、胚胎种植率。BMI是影响扳机次日血清HCG水平的重要因素,应根据BMI的高低个性化的给予HCG扳机剂量。 Abstract:Objective To investigate the influencing factors of serum HCG levels on the next day of human chorionic gonadotropin (HCG) trigger during in vitro fertilization-embryo transfer (IVF-ET) and its relationship with clinical outcomes. Methods A retrospective analysis was conducted on the data of 253 infertile patients who underwent IVF-ET fertility assistance at the Reproductive Genetics Center of the First People's Hospital in Kunming from January 2020 to December 2022. Patients were divided into 4 groups based on the serum HCG levels on the trigger day: Group A: HCG <50 IU/L with 8 cases; Group B: 50 IU/L ≤ HCG <100 IU/L with 73 cases; Group C: 100 IU/L ≤ HCG <150 IU/L with 90 cases; Group D: HCG ≥150 IU/L with 82 cases. The analysis included the impact of body mass index (BMI), estradiol level on the trigger day, effect of number of follicles with a diameter ≥14 mm on the trigger day on the serum HCG level on the trigger day, and the relationship between the high and low levels of serum HCG on the trigger day and the clinical outcomes. Results There were statistically significant differences in BMI among the groups(P < 0.05). The linear regression coefficient between BMI and serum HCG levels on the next day of trigger was-11.896(P < 0.05), showing a significant negative correlation. There were statistically significant differences in oocyte retrieval rate, Meiosis II (MII) oocyte rate and normal fertilization rate among the four groups(P < 0.05). There was no significant difference in other observed indicators(P > 0.05), but there was an increasing trend in the rates of high-quality embryos, embryo implantation, and clinical pregnancy with increasing HCG levels. Conclusion The serum HCG levels of the day after trigger have a significant effect on the oocyte retrieval rate, MII oocyte rate and normal fertilization rate potentially affecting the high-quality embryo rate, clinical pregnancy rate and embryo implantation rate. BMI is an important factor affecting the serum HCG levels on the day after trigger, and the dosage of HCG trigger should be personalized based on BMI levels. -
Key words:
- Trigger /
- HCG levels /
- Body mass index /
- Clinical outcomes
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表 1 不同血清HCG水平组患者的基本情况比较($ \bar x \pm s $)
Table 1. Comparison of the basic information of patients with different serum HCG levels($ \bar x \pm s $)
项目 A组 B组 C组 D组 χ2 P n 8 73 90 82 年龄(岁) 32.75±3.66 31.34±4.42 31.60±4.15 30.49±4.20 3.573 0.311 不孕年限(a) 4.88±3.14 4.00±3.07 3.88±3.22 3.94±2.82 1.895 0.595 基础FSH(mIU/mL) 5.62±1.18 6.26±1.59 6.55±1.69 6.44±1.54 2.607 0.456 基础LH(mIU/mL) 6.48±1.68 6.76±3.28 6.59±2.94 6.01±2.25 2.591 0.459 基础E2(Pmol/L) 113.33±49.14 154.65±102.61 153.85±85.03 153.11±63.34 3.771 0.287 表 2 各影响因素的比较($ \bar x \pm s $)
Table 2. Comparison of influencing factors($ \bar x \pm s $)
项目 A组 B组 C组 D组 χ2 P n 8 73 90 82 BMI(kg/m2) 26.55±2.05 24.45±3.69 21.47±2.08▲# 20.47±2.07▲#& 71.207 <0.001* 扳机日E2(Pmol/L) 14853.41 ±5468.19 13750.90 ±5801.57 13200.40 ±5628.57 14647.56 ±6118.44 2.075 0.557 扳机日≥14 mm卵泡数(个) 16.88±3.94 14.16±5.17 13.21±4.58 13.76±4.10 5.009 0.171 与A组比较,▲P < 0.05;与B组比较,#P < 0.05;与C组比较,&P < 0.05;*P < 0.05。 表 3 扳机后次日HCG水平与各影响因素的线性回归分析
Table 3. Linear regression analysis of HCG level and influencing factors on the next day after trigger
项目 β SE t P BMI −11.896 1.340 −8.880 <0.001* 扳机日E2 0.003 0.003 0.941 0.347 扳机日≥14 mm卵泡数 −0.791 1.058 −0.748 0.455 *P < 0.05。 表 4 不同血清HCG水平组各临床结局的比较(%)
Table 4. Comparison of clinical outcomes in different serum HCG levels (%)
项目 A组 B组 C组 D组 χ2 P n 8 73 90 82 重度OHSS率 0(0/8) 1.37(1/73) 1.11(1/90) 0(0/82) 1.148 0.766 获卵率 84.78(156/184) 92.84( 1427 /1537 )▲95.07( 1773 /1865)▲#93.30( 1573 /1686 )▲31.719 <0.001* MII卵率 82.69(129/156) 85.14( 1215 /1427 )87.99( 1560 /1773 )88.62( 1394 /1573 )#12.071 0.007* 正常受精率 59.69(77/129) 70.29(854/ 1215 )67.31( 1050 /1560 )72.45( 1010 /1394 )▲&15.495 0.001* 正常卵裂率 96.10(74/77) 98.36(840/854) 98.48( 1034 /1050 )98.61(996/ 1010 )2.955 0.399 可利用胚胎率 60.81(45/74) 51.79(435/840) 52.90(547/ 1034 )49.70(495/996) 4.657 0.199 优质胚胎率 43.24(32/74) 37.98(319/840) 41.49(429/ 1034 )40.86(407/996) 2.89 0.409 囊胚形成率 61.90(39/63) 59.56(436/732) 59.34(540/910) 59.77(526/880) 0.18 0.981 平均移植胚胎数 2.00±0.00 1.64±0.49 1.56±0.50 1.56±0.50 4.238 0.237 胚胎种植率 60(6/10) 36.36(28/77) 51.28(40/78) 52.24(35/67) 5.488 0.139 临床妊娠率 100(5/5) 53.19(25/47) 64(32/50) 67.44(29/43) 5.244 0.155 早期流产率 0(0/5) 12(3/25) 6.25(2/32) 10.34(3/29) 1.148 0.766 活产率 100(5/5) 51.06(24/47) 56(28/50) 51.16(22/43) 4.64 0.200 与A组比较,▲P < 0.05;与B组比较,#P < 0.05;与C组比较,&P < 0.05;*P < 0.05。 -
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