Obesity results with smaller oocyte in in vitro fertilization/intracytoplasmic sperm injection cycles-a prospective study.
J Assist Reprod Genet
; 34(9): 1145-1151, 2017 Sep.
Article
en En
| MEDLINE
| ID: mdl-28624860
ABSTRACT
BACKGROUND:
Obesity is associated with several fertility disorders. This prospective cohort study was designed to evaluate the effect of body mass index (BMI) (kg/m2) on oocyte diameter and treatment.METHODS:
Women undergoing in vitro fertilization (IVF) with intracytoplasmic sperm injection (ICSI) were enrolled in the study. They were divided into two groups according to BMI obese (BMI > 30) and normal weight (BMI < 25). Mature oocytes were evaluated according to total diameter, zona pellucida, and oolema diameters.RESULTS:
A total of 387 oocytes were obtained from the 46 women who participated. Significantly more mature oocytes (M2) were retrieved from normal weight patients compare to obese women (15.1 ± 6.8 vs. 9.7 ± 3.9, respectively, P < 0.001). Oocytes from women in the obese group were significantly smaller than those in the normal weight group, including oocyte diameter (157.9 ± 7.9 vs. 164.3 ± 5.1 µm, P < 0.0001), oolema diameter (110.3 ± 4.5 vs. 113.5 ± 3.5 µm, P < 0.0001), and zona pellucida thickness (17.9 ± 2.6 vs. 19.0 ± 2.4 µm, P < 0.000), respectively. Multivariate logistic regression analysis, including oolema diameter, female age, BMI, number of M2 oocytes, and zona pellucida, was conducted to predict pregnancy. Small oolema diameter in obese patient adversely correlated with pregnancy. Larger oolema diameter was positively associated with the probability of pregnancy in the obese group as well as thinner zona pellucida.CONCLUSION:
Obesity is associated with smaller oocytes, which adversely affect fertility outcomes. TRIAL REGISTRATION NIH number NCT01672931.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Oocitos
/
Zona Pelúcida
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Fertilización In Vitro
/
Obesidad
Tipo de estudio:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
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Female
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Humans
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Pregnancy
Idioma:
En
Revista:
J Assist Reprod Genet
Asunto de la revista:
GENETICA
/
MEDICINA REPRODUTIVA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Israel