Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 20 de 930
Rev. chil. obstet. ginecol. (En línea) ; 87(2): 90-96, abr. 2022. ilus, tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1388724


OBJETIVO: Describir las tasas de recién nacidos vivos (RNV) y embarazo de la terapia de reproducción médicamente asistida de baja complejidad del Centro de Reproducción Humana de la Universidad de Valparaíso, Chile. MÉTODO: Estudio retrospectivo de todos los ciclos de estimulación ovárica controlada con inseminación intrauterina (IIU) completados, entre los años 2011 y 2019. Se evaluaron las características clínicas basales y los resultados en IIU homólogas y heterólogas según el ciclo inseminado, la causa de infertilidad, el rango etario y el índice de masa corporal (IMC). El desenlace principal fue la tasa de RNV por ciclo inseminado. RESULTADOS: Se estudiaron 1415 ciclos en 700 parejas. La tasa acumulativa de RNV fue del 19,6%, un 18,3% en IIU homóloga y un 39,0% en IIU heteróloga. La tasa de RNV fue del 10,0% al primer ciclo, del 5,8% al segundo ciclo y del 3,7% al tercer o más ciclos. Al separar por IIU heteróloga, esta aumenta al 24,4% al primer ciclo y al 14,6% al segundo ciclo. La tasa de RNV es significativamente mejor en pacientes menores de 35 años (23,7%) y con IMC < 29 (20,8%). CONCLUSIONES: El tratamiento de baja complejidad en pacientes infértiles es una opción terapéutica vigente con una aceptable tasa de RNV por ciclo inseminado. Los resultados están influenciados por la edad y por el IMC.

OBJECTIVE: To describe the rates of live newborns (LNB) and pregnancy of the low complexity therapy of the Centre for Human Reproduction of Universidad de Valparaíso, Chile. METHOD: Retrospective study of all cycles of controlled ovarian stimulation with intrauterine insemination (IUI) completed between 2011-2019. The baseline clinical characteristics and results in homologous and heterologous IUI were evaluated according to inseminated cycle, cause of infertility, age range and body mass index (BMI). The main outcome was rate of LNB per inseminated cycle. RESULTS: 1415 cycles were studied in 700 couples. The cumulative rate of LNB was 19.6%, 18.3% in homologous IUI and 39.0% in heterologous IUI. The LNB rate was 10.0% at the first cycle, 5.8% at the second cycle, 3.7% at the third or more cycles. When separating by heterologous IUI, it increases to 24.4% in the first cycle and 14.6% in the second cycle. The LNB rate is significantly better in patients under 35 years of age (23.7%) and with a BMI less than 29 (20.8%). CONCLUSIONS: Treatment of low complexity in selected infertile patients is a current therapeutic option with an acceptable rate of LNB per inseminated cycle. The results are influenced by age and BMI.

Humans , Male , Female , Adult , Birth Rate , Reproductive Techniques, Assisted , Infertility/therapy , Ovulation Induction , Insemination, Artificial , Body Mass Index , Retrospective Studies , Age Factors , Pregnancy Rate , Live Birth
Rev. Assoc. Med. Bras. (1992) ; 68(1): 100-105, Jan. 2022. tab, graf
Article in English | LILACS | ID: biblio-1360701


SUMMARY OBJECTIVE: The aim of this study was to compare the use of micronized vaginal progesterone and oral dydrogesterone in the endometrial preparation for frozen-thawed embryo transfer. METHODS: This was a randomized, controlled, open, two-armed clinical trial, with women undergoing frozen-thawed embryo transfer along with hormone replacement therapy for endometrial preparation, between September 2019 and February 2021. A total of 73 patients were randomly selected and orally administered 40 mg/day dydrogesterone (dydrogesterone group, n=36) or 800 mg/day micronized vaginal progesterone (micronized vaginal progesterone group, n=37), after endometrial preparation with transdermal estradiol. The main outcome was a viable ongoing pregnancy with 12 weeks of gestation as evaluated by ultrasound. RESULTS: The reproductive outcomes in frozen-thawed embryo transfer cycles were similar, with pregnancy rates in the dydrogesterone and micronized vaginal progesterone treatment groups being, respectively, 33.3 and 32.4% at 12 weeks pregnancy (confidence interval= -22.4-20.6, p=0.196). CONCLUSIONS: The use of oral dydrogesterone may be a more patient-friendly approach to endometrial preparation in frozen-thawed embryo transfer cycles, avoiding undesirable side effects and discomfort resulting from vaginal administration, while also providing similar reproductive results.

Humans , Female , Pregnancy , Dydrogesterone/adverse effects , Luteal Phase , Progesterone , Pregnancy Rate , Embryo Transfer/methods
Afr. J. reprod. Health (online) ; 26(12): 90-96, 2022. tables
Article in English | AIM | ID: biblio-1411776


Intrauterine adhesions (IUA) are rare. A retrospective comparative study was conducted between January 1, 2015, and December 31, 2018. Group A comprised 117 women who developed IUAs after open myomectomy, while Group B comprised 113 women who developed IUAs following uterine trauma caused by uterine instrumentation after a termination of pregnancy (TOP) or spontaneous miscarriage. The IUA grade and pregnancy rates and outcomes were compared using the March classification system. All patients underwent hysteroscopic adhesiolysis. The adhesions tended to be more severe (45/117, 38.5%) in Group A than in Group B (29/113, 25.7%); however, this difference was not statistically significant (Chi-Suare 5.047; p = .080). The period of observation was 24 months from the last hysteroscopy. The pregnancy rate in Group A (26, 22.2%) was significantly lower than in Group B (46, 40.7%) (OR: 2.403, 95% CI: 1.352­4.271; p = .003). Open myomectomy was the preceding aetiological factor in a greater proportion of women with IUA in our study. In cases where pregnancy is desired after open myomectomy, especially where the endometrial cavity is breached, postoperative hysteroscopy to exclude IUAs is recommended.

Gynecologic Surgical Procedures , Tissue Adhesions , Pregnancy Rate , Curettage , Pregnancy , Hysteroscopy , Uterine Myomectomy , Gynatresia
Article in English | WPRIM | ID: wpr-939790


OBJECTIVE@#To evalvate efficacy of Qizi Yusi Pills (QYP), a Chinese medicine compound preparation, on in vitro fertilization-embryo transfer (IVF-ET) in women of advanced reproductive age.@*METHODS@#This multicenter, randomized, double-blind, placebo-controlled trial was conducted from June 2018 to October 2019. A total of 124 patients were randomly allocated to either the QYP group or the placebo group using a stratified block randomization design, with 62 patients in each group. All patients completed controlled ovarian stimulation using a standard gonadotropin-releasing hormone agonist (GnRH-a) long protocol. As the QYP group, QYP was administered while the control group received placebo. QYP and placebo were administered for a total of 24 to 30 days from the day of GnRH-a pituitary downregulation to transvaginal oocyte retrieval. Both medications were taken orally at doses of 10 g three times each day. The primary outcome was cumulative pregnancy rate, and the secondary outcomes were periodic medication, follicular status, serum hormone and endometrial receptivity. Follow-up continued until 4 weeks after delivery. Maternal and neonatal complications, such as gestational diabetes, were also observed.@*RESULTS@#Overall, 119 patients completed the study, 60 in the QYP group and 59 in the placebo group. Per protocol (PP) analysis revealed that 6-month cumulative pregnancy rate in the QYP group was significantly higher than that in the placebo group [43.33% (26/60) vs. 25.42% (15/59), P=0.040). Additionally, more oocytes were retrieved from the QYP group than those from the placebo group (8.95 ± 3.12 vs. 7.85 ± 1.91, P=0.022). Moreover, the endometrial thickness of HCG day in the QYP group was significantly higher than that in the placebo group (11.78 ± 2.27 mm vs. 10.68 ± 2.07 mm, P=0.012). Maternal and neonatal complications between the two groups were not significantly different (P>0.05). Intention-to-treat analysis was in line with PP results.@*CONCLUSIONS@#QYP can enhance ovarian reserve capacity and ovarian response, and possibly promote endometrial receptivity. QYP effectively improves cumulative pregnancy rates in older patients (⩾35 years) undergoing IVF-ET. (Registration No. ChiCTR1800014427).

Drugs, Chinese Herbal/therapeutic use , Embryo Transfer , Female , Fertilization in Vitro , Gonadotropin-Releasing Hormone/agonists , Humans , Ovulation Induction , Pregnancy , Pregnancy Outcome , Pregnancy Rate
Journal of Integrative Medicine ; (12): 187-192, 2022.
Article in English | WPRIM | ID: wpr-929223


Maximising access to and the success of fertility treatments should be a priority for global reproductive health, as should overall patient well-being. The demand for in vitro fertilization (IVF) and other assisted fertility treatments has increased over the past decade and is likely to further increase in years to come. Nevertheless, there is still considerable unmet demand for infertility support worldwide. Moreover, the high emotional, physical and financial burden experienced by individuals undergoing IVF cycles can be a risk for their mental and physical health, which in turn can influence treatment continuation and the likelihood of IVF success. Studies from various parts of the world show that most individuals undergoing IVF also use adjunct alternative medicines and procedures, the most common being traditional Chinese medicine (TCM). The complementary and synergistic role of TCM for individuals undergoing IVF is an area that merits further attention and research, both for its potential positive effects on IVF success rates and for its broader physical and mental health benefits. However, much of the existing evidence is not sufficiently robust or consistent for findings to be adopted with confidence. This commentary argues that much work must be done to understand the efficacy and clinical best practices for these integrated approaches. This can be achieved in part by developing more robust and clinically relevant randomized controlled trial protocols, collecting and triangulating evidence through a variety of study designs and methods, and strengthening the collection and pooling of clinic-level data.

Female , Fertilization in Vitro , Humans , Medicine, Chinese Traditional , Pregnancy , Pregnancy Rate , Research Design , Treatment Outcome
Article in English | WPRIM | ID: wpr-928951


OBJECTIVES@#To identify, examine and summarize the available evidence on the effectiveness and safety of acupuncture for in vitro fertilisation (IVF) outcomes.@*METHODS@#Eight electronic databases, including PubMed, EMBASE, Cochrane Database of Systematic Review, Cochrane Central Register of Controlled Trials, China National Knowledge Infrastructure, Wanfang Database, Chinese Biomedical Database and VIP Database, were searched, supplemented by manual searches. Two researchers independently conducted the literature screening, data extraction, and methodological quality assessments. A narrative description was provided to show the general information and specific characteristics of the included studies. A bubble plot was used to visually display the overall effects of acupuncture on IVF outcomes.@*RESULTS@#Eighty-two studies were identified, including 64 primary studies and 18 systematic reviews. Transcutaneous electrical acupoint stimulation, electric acupuncture and manual acupuncture were applied in most studies and compared with no acupuncture, sham acupuncture and placebo acupuncture control groups. Sixty-three (98.4%) primary studies reported clinical pregnancy rate, and positive effects of acupuncture were found in 34 studies (54.0%). Live birth rate was reported in only 18 (28.1%) primary studies, of which 10 (55.6%) showed positive results. In addition, only 8 and 2 systematic reviews showed that acupuncture could increase clinical pregnancy events and live birth events, respectively. However, none of these reviews was of high methodological quality.@*CONCLUSIONS@#Available evidence suggests that acupuncture therapy could improve clinical pregnancy rates. However, whether acupuncture could increase live birth events was difficult to determine based on the few studies that have reported this outcome indicator. Furthermore, the methodological quality of most systematic reviews was assessed as critically low or low. Studies with a rigorous design and standardized implementation should be performed to refine the available evidence.

Acupuncture Therapy/methods , China , Female , Fertilization in Vitro , Humans , Pregnancy , Pregnancy Rate
Asian Journal of Andrology ; (6): 260-265, 2022.
Article in English | WPRIM | ID: wpr-928559


Obtaining high-quality embryos is one of the key factors to improve the clinical pregnancy rate of assisted reproductive technologies (ART). So far, the clinical evaluation of embryo quality depends on embryo morphology. However, the clinical pregnancy rate is still low. Therefore, new indicators are needed to further improve the evaluation of embryo quality. Several studies have shown that the decrease of sperm-specific protein actin-like 7A (ACTL7A) leaded to low fertilization rate, poor embryo development, and even infertility. The aim of this study was to study whether the different expression levels of ACTL7A on sperm can be used as a biomarker for predicting embryo quality. In this study, excluding the factors of severe female infertility, a total of 281 sperm samples were collected to compare the ACTL7A expression levels of sperms with high and low effective embryo rates and analyze the correlation between protein levels and in-vitro fertilization (IVF) laboratory outcomes. Our results indicated that the ACTL7A levels were significantly reduced in sperm samples presenting poor embryo quality. Furthermore, the protein levels showed a significant correlation with fertilization outcomes of ART. ACTL7A has the potential to be a biomarker for predicting success rate of fertilization and effective embryo and the possibility of embryo arrest. In conclusion, sperm-specific protein ACTL7A has a strong correlation with IVF laboratory outcomes and plays important roles in fertilization and embryo development.

Biomarkers/metabolism , Female , Fertilization , Fertilization in Vitro , Humans , Male , Pregnancy , Pregnancy Rate , Reproductive Techniques, Assisted , Spermatozoa/metabolism
Asian Journal of Andrology ; (6): 299-304, 2022.
Article in English | WPRIM | ID: wpr-928537


The extent of spermatogenic impairment on intracytoplasmic sperm injection (ICSI) outcomes and the risk of major birth defects have been little assessed. In this study, we evaluated the relationship between various spermatogenic conditions, sperm origin on ICSI outcomes, and major birth defects. A total of 934 infertile men attending the Center for Reproductive Medicine of Ren Ji Hospital (Shanghai, China) were classified into six groups: nonobstructive azoospermia (NOA; n = 84), extremely severe oligozoospermia (esOZ; n = 163), severe oligozoospermia (sOZ, n = 174), mild oligozoospermia (mOZ; n = 148), obstructive azoospermia (OAZ; n = 155), and normozoospermia (NZ; n = 210). Rates of fertilization, embryo cleavage, high-quality embryos, implantation, biochemical and clinical pregnancies, abortion, delivery, newborns, as well as major birth malformations, and other newborn outcomes were analyzed and compared among groups. The NOA group showed a statistically lower fertilization rate (68.2% vs esOZ 77.3%, sOZ 78.0%, mOZ 73.8%, OAZ 76.6%, and NZ 79.3%, all P < 0.05), but a significantly higher implantation rate (37.8%) than the groups esOZ (30.1%), sOZ (30.4%), mOZ (32.6%), and OAZ (31.0%) (all P < 0.05), which was similar to that of Group NZ (38.4%). However, there were no statistically significant differences in rates of embryo cleavage, high-quality embryos, biochemical and clinical pregnancies, abortions, deliveries, major birth malformations, and other newborn outcomes in the six groups. The results showed that NOA only negatively affects some embryological outcomes such as fertilization rate. There was no evidence of differences in other embryological and clinical outcomes with respect to sperm source or spermatogenic status. Spermatogenic failure and sperm origins do not impinge on the clinical outcomes in ICSI treatment.

Azoospermia/therapy , China , Female , Humans , Infant, Newborn , Male , Oligospermia/therapy , Pregnancy , Pregnancy Rate , Retrospective Studies , Sperm Injections, Intracytoplasmic/methods , Sperm Retrieval , Spermatogenesis , Spermatozoa
Asian Journal of Andrology ; (6): 287-293, 2022.
Article in English | WPRIM | ID: wpr-928534


Intrauterine insemination with donor sperm (IUI-D) is an assisted reproductive technology (ART) offered to couples with definitive male infertility or risk of genetic disease transmission. Here, we sought to evaluate our practice in IUI-D and identify factors that influenced the success rate. We performed a retrospective, single-center study of all IUI-D procedures performed at Lille University Medical Center (Lille, France) between January 1, 2007, and December 31, 2017. Single and multivariate analyses with a mixed logistic model were used to identify factors associated with clinical pregnancies and live births. We included 322 couples and 1179 IUI-D procedures. The clinical pregnancy rate was 23.5%, and the live birth rate was 18.9% per IUI-D. In a multivariate analysis, the women's age was negatively associated with the live birth rate. The number of motile spermatozoa inseminated was the only factor associated with both clinical pregnancies and live births, with a chosen threshold of 0.75 million. The clinical pregnancy and live birth rates were, respectively, 17.3% and 13.0% below the number of motile spermatozoa inseminated threshold and 25.9% and 21.0% at or above the threshold (all P = 0.005). The number of motile spermatozoa inseminated was the only factor that significantly influenced both pregnancies and live-birth rates after IUI-D. Indeed, below a threshold of 0.75 million motile spermatozoa inseminated, those rates were significantly lower. Application of this number of motile spermatozoa inseminated threshold may help centers to allocate donations more effectively while maintaining reasonable waiting times for patients.

Birth Rate , Female , Humans , Insemination , Insemination, Artificial , Male , Pregnancy , Pregnancy Rate , Retrospective Studies , Spermatozoa
Asian Journal of Andrology ; (6): 62-66, 2022.
Article in English | WPRIM | ID: wpr-928510


For infertility treatment, the selection of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) is decided by multiplying indicators (including fallopian tube factors, semen count, and semen motility), except for sperm morphology. In this study, we conducted a retrospective analysis, from implantation to birth, over a period of 5 years. A total of 1873 couples with primary or secondary fallopian tube factors and an increased defective sperm morphology rate (DSMR) were divided into different groups to receive IVF or ICSI cycles. By comparing the outcomes, we found that the F1 group (DSMR <96%, IVF group 1) had higher cleavage rate, biochemical pregnancy rate, clinical pregnancy rate, and live birth rate than the F3 group (DSMR >98%, IVF group 3; P < 0.05). In contrast, there was no significant difference in the ICSI subgroups. Furthermore, a comparison of the outcomes between IVF and ICSI showed that the S3 group (DSMR >98%, ICSI group 3) had higher cleavage rate (P < 0.001), biochemical pregnancy rate (P < 0.05), clinical pregnancy rate (P < 0.05) and live birth rate (P < 0.05) than the F3 group. However, the ICSI subgroup had a lower two pronuclei fertilization rate than the IVF subgroup (P < 0.05). Our data suggest that the sperm morphology should also be considered when selecting IVF or ICSI combined with other semen parameters before the first assisted reproductive technologies (ART) cycle, especially for males with severe sperm defects.

Female , Fertilization in Vitro , Humans , Male , Pregnancy , Pregnancy Rate , Reproductive Techniques, Assisted , Retrospective Studies , Sperm Injections, Intracytoplasmic , Spermatozoa
Article in Chinese | WPRIM | ID: wpr-927350


OBJECTIVE@#To observe the effect of conventional ovulation induction protocol and acupuncture combined with conventional ovulation induction protocol on pregnancy outcomes of frozen embryo transfer (FET) in patients with anovulatory infertility.@*METHODS@#A total of 60 patients with anovulatory infertility were randomized into an observation group and a control group, 30 cases in each group. In the control group, conventional ovulation induction protocol was applied to prepare endometrium. On the basis of the control group, acupuncture was started on the 2nd day of menstrual cycle in the observation group,Baihui (GV 20), Mingmen (GV 4), Geshu (BL 17), Guanyuan (CV 4), Qihai (CV 6), etc. were selected, once every other day, until 1 day before transplantation. The clinical pregnancy rate, embryo implantation rate, endometrial morphology on HCG trigger day, ovulation rate and cycle cancellation rate were compared in the two groups. The endometrial thickness before treatment and on HCG trigger day, TCM symptom score before and after treatment were observed in the two groups.@*RESULTS@#In the observation group, the embryo implantation rate and clinical pregnancy rate were higher than the control group (P<0.05), endometrial thickness and endometrial morphology on HCG trigger day were superior to the control group (P<0.05). After treatment, the TCM symptom score in the observation group was decreased compared with before treatment (P<0.05), and the variation was greater than the control group (P<0.01).@*CONCLUSION@#On the basis of the conventional ovulation induction protocol, acupuncture could enhance the embryo implantation rate and clinical pregnancy rate of FET, improve the endometrial receptivity of patients with anovulatory infertility.

Acupuncture Therapy , Embryo Transfer , Female , Humans , Infertility, Female/therapy , Pregnancy , Pregnancy Outcome , Pregnancy Rate
Rev. bras. ginecol. obstet ; 43(10): 749-758, Oct. 2021. tab
Article in English | LILACS | ID: biblio-1357062


Abstract Objective To investigate whether patients with a previous recombinant follicle stimulating hormone (rFSH)-stimulated cycle would have improved outcomes with rFSH + recombinant luteinizing hormone (rLH) stimulation in the following cycle. Methods For the present retrospective case-control study, 228 cycles performed in 114 patients undergoing intracytoplasmic sperm injection (ICSI) between 2015 and 2018 in an in vitro fertilization (IVF) center were evaluated. Controlled ovarian stimulation (COS) was achieved with rFSH (Gonal-f, Serono, Geneva, Switzerland) in the first ICSI cycle (rFSH group), and with rFSH and rLH (Pergoveris, Merck Serono S.p.A, Bari, Italy) in the second cycle (rFSH + rLH group). The ICSI outcomes were compared among the groups. Results Higher estradiol levels, oocyte yield, day-3 high-quality embryos rate and implantation rate, and a lower miscarriage rate were observed in the rFSH + rLH group compared with the rFSH group. In patients < 35 years old, the implantation rate was higher in the rFSH + rLH group compared with the rFSH group. In patients ≥ 35 years old, higher estradiol levels, oocyte yield, day-3 high-quality embryos rate, and implantation rate were observed in the rFSH + rLH group. In patients with ≤ 4 retrieved oocytes, oocyte yield, mature oocytes rate, normal cleavage speed, implantation rate, and miscarriage rate were improved in the rFSH + rLH group. In patients with ≥ 5 retrieved oocytes, higher estradiol levels, oocyte yield, and implantation rate were observed in the rFSH + rLH group. Conclusion Ovarian stimulation with luteinizing hormone (LH) supplementation results in higher implantation rates, independent of maternal age and response to COS when compared with previous cycles stimulated with rFSH only. Improvements were also observed for ICSI outcomes and miscarriage after stratification by age and retrieved oocytes.

Resumo Objetivo: Investigar se há algum efeito da suplementação com hormônio luteinizante (LH, na sigla em inglês) no regime com antagonista do hormônio liberador de gonadotropina (GnRH, na sigla em inglês) sobre os resultados dos ciclos consecutivos de injeção intracitoplasmática de espermatozoides (ICSI, na sigla em inglês). Métodos Para o presente estudo retrospectivo de caso-controle, foram avaliados 228 ciclos de microinjeção intracitoplasmática de espermatozoides (ICSI, na sigla em inglês) realizados em 114 pacientes entre 2015 e 2018 em um centro privado de fertilização in vitro (FIV) afiliado a uma universidade. O estímulo ovariano controlado (EOC) foi feito com hormônio folículo- estimulante recombinante (rFSH, na sigla em inglês) (Gonal-f, Serono, Genebra, Suíça) no primeiro ciclo de ICSI (grupo rFSH), e com rFSH e rLH (Pergoveris, Merck Serono S.p.A, Bari, Itália) no segundo ciclo (grupo rFSH + rLH). Os desfechos dos ciclos de ICSI foram comparados entre os grupos. Resultados Níveis mais elevados de estradiol, de recuperação oocitária, taxa de embriões de alta qualidade no 3° dia e taxa de implantação, e menor taxa de aborto foram observados no grupo rFSH + rLH. Em pacientes < 35 anos, a taxa de implantação foi maior no grupo rFSH + rLH em comparação com o grupo rFSH. Em pacientes com ≥ 35 anos, maiores níveis de estradiol, recuperação oocitária, a taxa de embriões de alta qualidade no 3° dia e a taxa de implantação foram observados no grupo rFSH + rLH. Em pacientes com baixa resposta ao EOC (≤ 4 oócitos recuperados), a recuperação oocitária, a taxa de oócitos maduros, a taxa de velocidade normal de clivagem, a taxa de implantação e a taxa de aborto foram melhoradas no grupo rFSH + rLH. Em pacientes com resposta normal ao EOC (≥ 5 oócitos recuperados), níveis mais elevados de estradiol, recuperação oocitária e taxa de implantação foram observados no grupo rFSH + rLH. Conclusão A estimulação ovariana com suplementação de LH resultou em taxas de implantação mais altas, independentemente da idade materna e da resposta ao EOC, em comparação com os ciclos anteriores estimulados apenas com rFSH. Melhorias também foram observadas nos resultados da ICSI e na taxa de aborto quando as pacientes foram estratificadas por idade e número de oócitos recuperados.

Humans , Female , Pregnancy , Adult , Ovulation Induction , Sperm Injections, Intracytoplasmic , Luteinizing Hormone , Fertilization in Vitro , Case-Control Studies , Retrospective Studies , Gonadotropin-Releasing Hormone , Pregnancy Rate , Follicle Stimulating Hormone
Arq. bras. med. vet. zootec. (Online) ; 73(4): 923-928, Jul.-Aug. 2021. tab
Article in English | LILACS, VETINDEX | ID: biblio-1285266


The aim of this research was to determine the influence of lactation number and parity on milk yield of Saanen goat's breed. It has been concluded that milk yield was higher for goats that had given birth to twins and three kids than for goats that had given birth to a single kid (P<0.05). The longevity has a great positive impact on production, given that goats in the fifth lactation produced more milk than goats in first or second lactation (P<0.05), while goats in the sixth lactation still produced more milk than goats in first lactation (P<0.05). During the period from 2014- 2019, the research was conducted on a farm of multiparous Saanen goats in Vojvodina (northern part of Serbia). In the observed period, the farm had between 350 and 400 goats per milking, and the research included a total of 1,628 concluded lactations, within which the first lactations were the most 484, then the second 381. According to the number of lactations, goats were grouped into classes from one to seven and from one to three for parity. By comparing each individual lactation, it was determined that in first lactation goats produced significantly lower milk than goats in the rest lactations(P<0.05), except the seventh. Research has shown that lactation number has a significant influence on milk yield (P=0.00). Increasing the fertility of goats significantly affects the production capacity of dairy goats, since does with a larger number of kids in the litter had a significantly higher milk production (P<0.05). Due to the larger number of kids in the litter, milk production also increases. Likewise, it is assumed that the increase in milk yield of goats with two and three kids is a consequence of a larger placenta, i.e. stronger lactogenic activity during pregnancy.(AU)

O objetivo desta pesquisa foi determinar a influência do número de lactações e da paridade na produção de leite da raça de cabras Saanen. Concluiu-se que a produção de leite era maior para caprinos que haviam dado à luz gêmeos e três cordeiros do que para caprinos que haviam dado à luz um único cordeiro (P<0,05). A longevidade tem um grande impacto positivo na produção, dado que as cabras na quinta lactação produziram mais leite do que as cabras na primeira ou segunda lactação (P<0,05), enquanto as cabras na sexta lactação ainda produziram mais leite do que as cabras na primeira lactação (P<0,05). Durante o período de 2014- 2019, a pesquisa foi realizada numa fazenda de cabras Saanen multipares em Voivodina (parte norte da Sérvia). No período observado, a fazenda tinha entre 350 e 400 cabras por ordenha, e a pesquisa incluiu um total de 1.628 lactações concluídas, dentro das quais as primeiras lactações foram as mais 484, depois as segundas 381. De acordo com o número de lactações, as cabras foram agrupadas em classes de um a sete e de um a três para paridade. Comparando cada lactação individual, determinou-se que na primeira lactação as cabras produziram leite significativamente menor do que as cabras nas demais lactações (P<0,05), exceto a sétima. Pesquisas mostraram que o número de lactações tem uma influência significativa na produção de leite (P=0,00). O aumento da fertilidade das cabras afeta significativamente a capacidade de produção de caprinos leiteiros, já que com um número maior de cabritos na ninhada a produção de leite foi significativamente maior (P<0,05). Devido ao maior número de cabritos na ninhada, a produção de leite também aumenta. Da mesma forma, assume-se que o aumento na produção de leite de cabras com dois e três cabritos é uma consequência de uma placenta maior, ou seja, de uma atividade lactogênica mais forte durante a gestação.(AU)

Animals , Lactation , Goats/physiology , Pregnancy Rate/trends , Parturition/physiology , Milk/statistics & numerical data
Rev. chil. obstet. ginecol. (En línea) ; 86(1): 14-22, feb. 2021. ilus, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1388625


INTRODUCCIÓN Y OBJETIVOS: La infertilidad es una enfermedad altamente prevalente que afecta aproximadamente a un 8-10% de las parejas en edad reproductiva. Las Técnicas de Reproducción Asistida (TRA) han experimentado un importante incremento en el número de tratamientos realizados, no obstante, el acceso en Chile sigue siendo limitado y centralizado. El presente estudio resume la experiencia y los resultados de TRA del primer trienio del Centro de Reproducción Humana de la Universidad de Valparaíso (CRHUV). MÉTODOS: Estudio de cohorte retrospectiva de las pacientes sometidas a TRA en el CRHUV desde 1 de enero de 2015 a 31 diciembre 2017. Se realizó un análisis descriptivo e inferencial. La distribución de variables fue analizada con la prueba de Shapiro-Wilk. Para variables cualitativas se usó la prueba exacta de Fisher. RESULTADOS: Se iniciaron un total de 581 ciclos. Para un total de 340 ciclos en fresco con ovocitos propios, la tasa de embarazo (TE) y de parto (TP) por ciclo aspirado fue de 43,5% y 36,7% respectivamente. En el mismo grupo, la TE y TP por transferencia embrionaria fue de un 48,4% y un 40,9% respectivamente, siendo superior al comparar transferencia doble con un embrión (p < 0,05). También se observó un aumento de TE en menores de 35 años (p < 0,05). La TE y TP por transferencia embrionaria fue semejante en transferencia de embriones frescos y congelados. Al transferir embriones producto de ovocitos donados se observó un incremento significativo de la TE y TP con tasas de 73,1% y 61,5% respectivamente. Las tasa globales y estratificadas de embarazo y parto fueron comparables en el trienio estudiado con los resultados de la REDLARA. CONCLUSIÓN: La exitosa implementación del CRHUV se respalda en los resultados comparables a lo reportado por literatura internacional.

INTRODUCTION AND OBJECTIVES: Infertility is a highly prevalent disease that affects approximately 8-10% of couples in reproductive age. Assisted reproduction techniques (ART) have experienced a significant increase in the number of treatments performed, however, access in Chile remains limited and centralized. This study summarizes the experience and results of the first triennium of the Center for Human Reproduction of the Universidad de Valparaíso (CRHUV). METHODS: Retrospective cohort study of patients undergoing ART at the CRHUV from January 1, 2015 to December 31, 2017. A descriptive and inferential analysis was performed. The distribution of the variables was analyzed with the Shapiro-Wilk test. For qualitative variables, Fisher's exact test was used. RESULTS: A total of 581 cycles were started. For a total of 340 fresh cycles with own oocytes, the pregnancy (RP) and delivery (DR) rate per oocyte retrival was 43.5% and 36.7%. In the same group, PR and DR per embryo transfer was 48.4% and 40.9%, being higher when comparing double with a single embryo transfer (p <0.05). A higher PR was also observed in < 35 years patients (p <0.05). The PR and DR per embryo transfer was similar using fresh and frozen embryo. In oocytes donation, a significant increase in PR and RD per embryo transfer was observed with rates of 73.1% and 61.5%, respectively. The global and stratified rates of pregnancy and delivery were comparable in the studied triennium compared to the results of REDLARA. CONCLUSION: The successful implementation of the CRHUV is supported by results comparable to those reported by international literature.

Humans , Female , Pregnancy , Reproductive Techniques, Assisted/statistics & numerical data , Pregnancy Outcome , Fertilization in Vitro/statistics & numerical data , Chile , Retrospective Studies , Oocyte Donation , Pregnancy Rate
Rev. bras. ginecol. obstet ; 43(8): 608-615, 2021. tab, graf
Article in English | LILACS | ID: biblio-1351769


Abstract Objective To establish a relationship between serum progesterone values on the day of frozen blastocyst transfer in hormone-replaced cycles with the probability of pregnancy, miscarriage or delivery. Methods This was an ambispective observational study including all frozen-thawed embryo transfer cycles performed at our department following in vitro fecundation from May 2018 to June 2019. The outcomes evaluated were β human chorionic gonadotropin (β-hCG)-positive pregnancy and delivery. Groups were compared according to the level of serum progesterone on the day of embryo transfer: the 1st quartile of progesterone was compared against the other quartiles and then the 2nd and 3rd quartiles against the 4th quartile. Results A total of 140 transfers were included in the analysis: 87 with β-HCG>10 IU/L (62%), of which 50 (36%) delivered and 37 had a miscarriage (42%).Women with lower progesterone levels (< 10.7ng/mL) had a trend toward higher β-HCG-positive (72 versus 59%; p>0.05), lower delivery (26 versus 39%; p>0.05) and higher miscarriage rates (64 versus 33%; p<0.01). Comparing the middle quartiles (P25-50) with those above percentiles 75, the rate of pregnancy was similar (60 versus 57%; p>0.05), although there was a trend toward a higher number of deliveries (43 versus 31%; p>0.05) and a lower number of miscarriages (28 versus 45%; p>0.05). These differences were not statistically significant. Conclusion There were no differences in pregnancy and delivery rates related with the progesterone level when measured in the transfer day. The miscarriage rate was higher in the 1st quartile group.

Resumo Objetivo Avaliar se existe alguma relação entre os valores plasmáticos de progesterona no dia da transferência de um blastocisto desvitrificado em ciclos hormonalmente substituídos e a taxa de gravidez, aborto ou nascido vivo. Métodos Estudo observacional, ambispectivo, incluindo todos os ciclos de transferência de blastocistos congelados no nosso departamento, entre maio de 2018 e junho de 2019. Avaliou-se a taxa de gravidez e de nascidos vivos após 24 semanas de gestação. Os grupos foram comparados de acordo com os valores de progesterona plasmáticos dosados no dia da transferência do blastocisto: comparou-se o 1° quartil com os outros e depois os 2° e 3° quartis com o 4°. Resultados Avaliaram-se 140 transferências: 87 com β gonadotrofina coriônica humana (β-HCG)>10 IU/L (62%), 50 das quais terminaram em nascido vivo (36% do total), enquanto 37 tiveram um aborto (42% das gravidezes). Verificou-se uma tendência para menor número de recém-nascidos nas transferências com níveis de progesterona no 1° quartil (<10.7ng/mL) (26 versus 39%; p>0.05) e ummaior número de abortos (64 versus 33%; p<0.01). Comparando o 2° e 3° quartis com o 4°, verificouse que nos casos em que a progesterona estava acima do percentil 75, apesar de uma taxa de gravidez semelhante (60 versus 57%; p>0.05), houve uma tendência para uma maior taxa de nascidos vivos (43 versus 31%; p>0.05) emenor número de abortos (28 versus 45%; p>0.05) abaixo do percentil 75. Estas diferenças não foram estatisticamente significativas. Conclusão Não se verificaram diferenças estatisticamente significativas para taxa de gravidez e de nascido vivo. A taxa de aborto foi maior no primeiro quartil.

Humans , Female , Pregnancy , Progesterone , Chorionic Gonadotropin, beta Subunit, Human , Fertilization in Vitro , Retrospective Studies , Pregnancy Rate , Embryo Transfer
Einstein (Säo Paulo) ; 19: eAO6290, 2021. tab, graf
Article in English | LILACS | ID: biblio-1339834


ABSTRACT Objective To answer the question if the freeze-all strategy and subsequent frozen embryo transfer is preferable to fresh embryo transfer for patients with normal response to ovarian stimulation (4 to 15 oocytes recovered) during in vitro fertilization treatments. Methods A retrospective cohort from two human reproduction centers between 2013 and 2017. A total of 471 frozen embryo transfers from freeze-all cycles, and 3,208 fresh transfers were included. Results After propensity score matching adjustment for age and number of eggs, 467 freeze-all cycles and 934 fresh cycles were analyzed, revealing no statistically significant difference between groups in relation to clinical pregnancy rate (32.5% in the Freeze-all Group and 32.3% in the Fresh Group, p=0.936). For women aged 40 years and older, we observed a statistically significant higher clinical pregnancy rate when freeze-all strategy was used (29.3% in the Freeze-all Group and 19.8% in the Fresh Group, p=0.04). Conclusion Freeze-all strategy was not superior to fresh transfer for all patients with normal response to ovarian stimulation. However, women aged 40 years and older could benefit from this strategy. This deserves further investigation in future research, preferable in a prospective randomized study.

RESUMO Objetivo Responder à pergunta se a estratégia freeze-all (congelamento de todos os embriões) e subsequente transferência de embriões congelados é preferível à transferência de embriões a fresco em pacientes com resposta normal à estimulação ovariana (4 a 15 ovócitos coletados) durante tratamentos de fertilização in vitro . Métodos Coorte retrospectiva de dois centros de reprodução humana entre 2013 e 2017. No total, foram incluídas 471 transferências de ciclos com congelamento de todos os embriões, e 3.208 transferências a fresco. Resultados Após o ajuste do escore de propensão para idade e número de óvulos, foram analisados 467 ciclos com congelamento de todos os embriões e 934 ciclos a fresco, não havendo diferença estatisticamente significativa entre os grupos em relação à taxa de gravidez clínica (32,5% no Grupo Freeze-all e 32,3% no Grupo a Fresco, p=0,936). Para mulheres com 40 anos ou mais, observamos uma taxa de gravidez clínica estatisticamente maior quando foi utilizada a estratégia freeze-all (29,3% no Grupo Freeze-all e 19,8% no Grupo a Fresco, p=0,04). Conclusão A estratégia freeze-all não foi superior à transferência a fresco para todas as pacientes com resposta normal à estimulação ovariana. No entanto, mulheres com 40 anos ou mais podem ter algum benefício com essa estratégia. Isso justifica uma investigação mais aprofundada em pesquisas futuras e, de preferência, em estudos prospectivos randomizados.

Humans , Female , Pregnancy , Adult , Ovulation Induction , Fertilization in Vitro , Cryopreservation , Prospective Studies , Retrospective Studies , Pregnancy Rate , Policy , Middle Aged
Femina ; 49(8): 494-500, 2021. ilus
Article in Portuguese | LILACS | ID: biblio-1342420


Introdução: A gravidez na adolescência é considerada um problema global de saú- de pública, visto que 11% dos nascimentos em todo o mundo são oriundos de gestações em mulheres adolescentes. A taxa de reincidência de gestação durante a adolescência é de 61%, no Brasil, em adolescentes entre 10 e 19 anos, e de 17% a 35%, nos Estados Unidos, sendo ainda maior em países subdesenvolvidos. Objeti- vo: Realizar um levantamento dos conteúdos científicos sobre o uso de métodos contraceptivos e da reincidência de gestações em mulheres adolescentes. Méto- dos: Trata-se de um artigo de revisão sistemática. A busca foi realizada nas bases de dados Cochrane, LILACS e PubMed, por meio das palavras-chave Adolescent e Contraception. Foram incluídos artigos em inglês, português e espanhol publica- dos entre 2010 e 2020. Resultados: Foram encontradas 526 publicações, tendo sido excluídas 113 por duplicidade, 234 após a leitura de título, 155 após a leitura de resumo e 14 após a leitura na íntegra. Fizeram parte desta revisão oito publicações. Discussão: A amostra total contou com 2.492 adolescentes, com idade majoritária entre 14 e 19 anos, as quais, em sua maioria, eram primíparas. Nos grupos de bai- xa escolaridade, havia menos conhecimento e uso de métodos contraceptivos de longa duração (LARCs) e mais tendência ao uso de métodos de curta duração ou a relações sexuais desprotegidas. Os métodos contraceptivos pós-parto mais uti- lizados apresentavam menos eficácia, principalmente o preservativo. Conclusão: A promoção do acesso aos métodos de alta eficácia, principalmente LARCs, e o acompanhamento por meio de entrevista motivacional são capazes de reduzir a reincidência gestacional em adolescentes.(AU)

Introduction: Adolescence pregnancy is considered a global public health problem since 11% of births worldwide are from pregnancies in adolescent women. The rate of a second pregnancy during adolescence is up to 61% in Brazil in adolescents bet- ween 10 and 19 years old and 17%-35% in the United States of America, being even higher in underdeveloped countries. Objective: To survey scientific content on the use of contraceptive methods and the recurrence of pregnancies in adolescent women. Methods: This is a systematic review article. The search was carried out in Cochrane, LILACS, and PubMed databases, using the keywords Adolescent and Contraception. Articles in En- glish, Portuguese and Spanish published between 2010 and 2020 were included. Results: We found 526 publications, of which 113 were excluded due to duplication, 234 excluded af- ter reading the title, 155 after reading the abstract, and 14 after reading the full text. Eight publications were part of this review. Discussion: The total sample was made of 2,492 ado- lescents, aged between 14 and 19 years old, most of whom were primiparous. In the less educated groups, there was less knowledge about contraception, less use of long-term con- traceptive methods (LARCs), and a greater tendency to use short-term methods or unprotected sex. The postpartum con- traceptive methods most used were those with the least ef- fectiveness, mainly the condom. Conclusion: The promotion of access to highly effective methods, mainly LARCs and follow- -ups through motivational interviews are capable of reducing gestational recurrence in adolescents.(AU)

Humans , Female , Pregnancy , Adolescent , Pregnancy in Adolescence , Pregnancy Rate , Contraception/methods , Databases, Bibliographic , Journal Article
Article in Chinese | WPRIM | ID: wpr-887933


Pelvic inflammatory disease(PID) has become one of the leading causes of female infertility, with an increasing incidence in recent years. Modern medicine believes that risk factors of PID will affect the formation of eggs and embryo implantation, especially on the encounter of gametes, fertilization, and transport of fertilized eggs to the uterine cavity. Therapies for infertility due to PID include medication, sonographic hydrotubation, surgery, and assisted reproductive technology. Professor Ma Kun believes that the disease is located in the uterus with appendages with the main pathogenesis of kidney deficiency and blood stasis. Blood stasis is the pathological basis, and kidney deficiency is the fundamental pathogenesis, which exhibits deficiency-excess in complexity. Kidney deficiency will cause blood stasis over time, while blood stasis will aggravate kidney deficiency in turn, making PID-induced infertility refractory. In clinical practice, basic therapies follow the principles of kidney-tonifying and blood-activating, removing blood stasis, dredging collaterals, and coordinating thoroughfare and conception vessels. The oral administration of Chinese medicine combined with enema, external application, and external washing displays better efficacy in improving the pelvic microenvironment and increasing the pregnancy rate and pregnancy success rate in the treatment of PID-induced infertility.

Female , Humans , Infertility, Female/etiology , Kidney , Medicine, Chinese Traditional , Pelvic Inflammatory Disease/drug therapy , Pregnancy , Pregnancy Rate
National Journal of Andrology ; (12): 917-926, 2021.
Article in Chinese | WPRIM | ID: wpr-922176


Objective@#To evaluate the effects of transcutaneous electrical acupoint stimulation (TEAS) on the pregnancy outcome and sperm parameters in patients with idiopathic oligoasthenospermia.@*METHODS@#We searched PubMed, EMBASE, Cochrane Library, CNKI, VIP and Wanfang from inception till January 2020 for randomized controlled trials (RCT) with the keywords male infertility, oligozoospermia, asthenozoospermia, acupuncture, transcutaneous electrical acupoint stimulation, etc. Using the Cochrane risk bias tool, we evaluated the quality of the identified RCTs, and analyzed the primary outcomes, including pregnancy and live birth, and secondary outcomes, such as sperm concentration, motility and morphology.@*RESULTS@#Four RCTs with 321 subjects were included, of which none reported live birth and only one reported a pregnancy rate of 15% after treatment of 2 Hz TEAS. Neither 2 Hz (WMD: -3.01, 95% CI: -22.28 to 16.26) nor 100 Hz TEAS (WMD: -0.02, 95% CI: -5.29 to 5.56) had any significant effect on sperm concentration, while 100 Hz TEAS markedly improved the percentage of grade a sperm (WMD: 6.83, 95% CI: 2.10 to 11.57) compared with 2Hz TEAS (WMD: 2.31, 95% CI: 1.01 to 3.61). In comparison with the blank control, neither 2 Hz (WMD: 4.07, 95% CI: -5.15 to 13.29) nor 100 Hz TEAS (WMD: 6.59, 95% CI: -5.36 to 18.55) significantly affected the percentage of grade a + b sperm or total sperm motility.@*CONCLUSIONS@#The effect of TEAS on the pregnancy outcome is not yet clear. 100 Hz TEAS significantly improved the percentage of grade a sperm in idiopathic oligoasthenospermia patients, which, however, is to be further verified with more high-quality clinical studies.

Acupuncture Points , Female , Humans , Pregnancy , Pregnancy Rate , Sperm Count , Sperm Motility
Chinese Medical Journal ; (24): 2421-2429, 2021.
Article in English | WPRIM | ID: wpr-921176


BACKGROUND@#Empiric therapy for patients with unexplained recurrent pregnancy loss (URPL) is not precise. Some patients will ask for assisted reproductive technology due to secondary infertility or advanced maternal age. The clinical outcomes of URPL patients who have undergone in vitro fertilization-embryo transfer (IVF-ET) require elucidation. The IVF outcome and influencing factors of URPL patients need further study.@*METHODS@#A retrospective cohort study was designed, and 312 infertile patients with URPL who had been treated during January 2012 to December 2015 in the Reproduction Center of Peking University Third Hospital were included. By comparing clinical outcomes between these patients and those with tubal factor infertility (TFI), the factors affecting the clinical outcomes of URPL patients were analyzed.@*RESULTS@#The clinical pregnancy rate (35.18% vs. 34.52% in fresh ET cycles, P = 0.877; 34.48% vs. 40.27% in frozen-thawed ET cycles, P = 0.283) and live birth rate (LBR) in fresh ET cycles (27.67% vs. 26.59%, P = 0.785) were not significantly different between URPL group and TFI group. URPL group had lower LBR in frozen-thawed ET cycles than that of TFI group (23.56% vs. 33.56%, P = 0.047), but the cumulative LBRs (34.69% vs. 38.26%, P = 0.368) were not significantly different between the two groups. The increased endometrial thickness (EMT) on the human chorionic gonadotropin day (odds ratio [OR]: 0.848, 95% confidence interval [CI]: 0.748-0.962, P = 0.010) and the increased number of eggs retrieved (OR: 0.928, 95% CI: 0.887-0.970, P = 0.001) were protective factors for clinical pregnancy in stimulated cycles. The increased number of eggs retrieved (OR: 0.875, 95% CI: 0.846-0.906, P < 0.001), the increased two-pronucleus rate (OR: 0.151, 95% CI: 0.052-0.437, P < 0.001), and increased EMT (OR: 0.876, 95% CI: 0.770-0.997, P = 0.045) in ET day were protective factors for the cumulative live birth outcome.@*CONCLUSION@#After matching ages, no significant differences in clinical outcomes were found between the patients with URPL and the patients with TFI. A thicker endometrium and more retrieved oocytes increase the probability of pregnancy in fresh transfer cycles, but a better normal fertilization potential will increase the possibility of a live birth.

Abortion, Habitual , Embryo Transfer , Female , Fertilization in Vitro , Humans , Pregnancy , Pregnancy Rate , Retrospective Studies