Journal of Jilin University(Medicine Edition) ›› 2023, Vol. 49 ›› Issue (3): 742-749.doi: 10.13481/j.1671-587X.20230324

• Research in clinical medicine • Previous Articles     Next Articles

Analysis on influence factors of number and rate of oocytes retrieved during in vitro fertilization cycle in patients underwent in vitro fertilization/intracytoplasmic sperm injection

Yi LI,Xiaohong YAN,Youzhu LI()   

  1. Reproductive Medicine Center,Affiliated First Hospital,Xiamen University,Xiamen 361005,China
  • Received:2022-07-04 Online:2023-05-28 Published:2023-06-20
  • Contact: Youzhu LI E-mail:liyouzhu2006@sina.com

Abstract:

Objective To discuss the influencing factors of oocytes retrieved numbers and oocytes retrieved rates during in vitro fertilization cycle in patients underwent in vitro fertilization/intracytoplasmic sperm injection((IVF/ICSI), and to provide the basis for the choice of the trigger time in clinical practice. Methods A total of 950 patients who received IVF/ICSI treatment were selected. The optimal scale regression model was used to analyze the effects of age, estradiol (E2) levels on the day of of human chorionic gonadotropin (HCG) administration, ovarian reserve function, percentages of different sizes of follicles on the days of oocyte retrieved and HCG administration, ovulation induction protocols of the patients, and operators on the number of oocyte retrieved and oocyte retrieved rate. Results There was a negative correlation between the age of patients and the number of oocytes retrieved(β=-0.068,P<0.01); there was a negative correlation between the percentage of big follicles on the oocytes retrieved day and the number of oocyte retrieved(β=-0.243, P<0.01), there was a negative correlation between the percentage of big follicles on the HCG administration day and the number of oocyte retrieved (β=-0.073,P<0.01); there was a positive correlation between E2 levels on the HCG administration day and ovarian reserve function and the number of oocyte retrieved(β= 0.270,P<0.01;β=0.196, P<0.01); there was a positive correlation between the percentage of middle follicles on the HCG administration day and the number of oocyte retrieved(β=0.098,P<0.01).The numbers of oocyte retrieved of the patients in long protocol, antagonist protocol,progesterone-primed ovarian stimulation(PPOS) protocol, and natural cycle protocol were gradually decreased(β=0.227,P<0.01). The regression analysis results showed that there were positive correlations between the percentages of big and middle follicles on the oocyte retrieved day and the rate of oocyte retrieved(β= 0.168, P<0.01;β=0.194, P<0.01), the ovarian reserve function, ovulation induction protocol and different operators influenced the rate of oocyte retrieved(β=0.086,P=0.040;β=0.137,P<0.01; β=0.270,P<0.01). Conclusion The percentage of follicles with diameter ≥ 18 mm on the HCG administration day should be controlled below 20%, and more oocytes should be retrieved; with the decreasing of the women’ age and ovarian reserve functions, the number of oocyte retrieved is gradually decreased; it is necessary to strengthen the standard procedures for oocyte retrieved surgery to promote the rate of oocyte retrieved.

Key words: In vitro ferilization, Intracytoplasmic sperm injection, Number of oocytes retrived, Rate of oocytes retrieved, Estradiol

CLC Number: 

  • R71