Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 44
Filtrar
1.
Reprod Biomed Online ; 14(3): 294-9, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17359580

RESUMEN

The aim of this study was, firstly, to define the different patterns of early cleavage (EC) observed at 26 h after either IVF or intracytoplasmic sperm injection (ICSI) and, secondly, to assess the predictive value of one of these patterns, even EC (EEC), on pregnancy rate in combination with day 2 embryo score. In the first part of the study, the relationship between three different EC patterns (EEC, uneven EC and EC with fragmentation of the day 2 embryo) and embryo morphology was determined. EEC was shown to be strongly associated with good embryo morphology. In the second part of the study, it was shown that EEC used in combination with embryo score improved selection of embryos for transfer. The presence of EEC significantly (P < 0.001) enhanced mean implantation rate in all transfer categories involving identically scored embryos, in both compulsory single embryo transfers and elective single embryo transfers. Multivariate analysis demonstrated that EEC and embryo score had strong complementary predictive value for pregnancy. Based on these findings, it was concluded that even though they are associated, EEC and embryo score could be combined to increase pregnancy rate, especially in elective single embryo transfer programmes.


Asunto(s)
Técnicas de Cultivo de Embriones , Transferencia de Embrión , Embrión de Mamíferos/citología , Fertilización In Vitro/métodos , Infertilidad/terapia , Inyecciones de Esperma Intracitoplasmáticas/métodos , Adulto , Implantación del Embrión , Femenino , Humanos , Masculino , Oocitos/citología , Embarazo , Resultado del Embarazo , Índice de Embarazo
2.
Reprod Biomed Online ; 14(1): 85-91, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17207338

RESUMEN

The value of early cleavage (EC) assessment is still being debated. The aim of this prospective study was to examine the predictive value of EC assessment performed exactly 26 h after insemination by IVF or intracytoplasmic sperm injection (ICSI) in a programme of elective single embryo transfer (SET) performed at day 2. If day 2 scoring demonstrated several embryos with high implantation potential, an EC embryo was transferred preferentially. EC was assessed only during normal laboratory hours so that there were two groups: EC assessed, and EC not assessed, the latter being the control. A total of 277 elective SET were performed in women under 37 years undergoing their first IVF or ICSI cycle (mean age 30.5 years, range 21-37). The overall clinical and ongoing pregnancy rates were 40.1% (111/277) and 32.9% (91/277) respectively. Significantly higher overall clinical and ongoing pregnancy rates were obtained after transfer of an EC embryo than a non-EC embryo: 49.4 versus 33.3% (P < 0.05) and 42.4 versus 25.9% (P < 0.02) respectively. However there was no significant difference between the EC assessed and control groups: 40.4 versus 39.3% and 33.2 versus 32.1 respectively. These findings confirm the value of EC assessment for selection of embryos with high implantation potential.


Asunto(s)
Implantación del Embrión , Transferencia de Embrión , Embrión de Mamíferos/citología , Adulto , Transferencia de Embrión/normas , Desarrollo Embrionario , Femenino , Fertilización In Vitro , Humanos , Embarazo , Índice de Embarazo , Estudios Prospectivos
3.
Gynecol Obstet Fertil ; 34(9): 786-92, 2006 Sep.
Artículo en Francés | MEDLINE | ID: mdl-16950642

RESUMEN

Multiple embryo transfer is associated with a high frequency of twin pregnancies with costly complications involving both mother and child. As a result high priority is currently being given to the development of single embryo transfer (SET) programs. France seems to be lagging behind Northern European countries in the development of SET and widespread use of SET will depend on convincing physicians that this policy will not have a negative impact on success rate, as has been the case for many protocols described in the literature as well as in our own experience. Our SET program includes patients less than 36 years of age undergoing their first FIV-ICSI. If two embryos showing satisfactory morphology are obtained, one is selected transferred and the other is systematically frozen. Selection for transfer is based on two criteria, i.e. observation of even early cleavage 26 hours after FIV-ICSI and evaluation of embryo morphology score on day 2. Embryo morphology score is based on the presence of four blastomeres and absence of blastomere irregularities and anucleated fragmentation. Last, a prerequisite for SET is an effective freezing program. A pregnancy rate of 13% per thawing was sufficient enough to obtain a cumulative pregnancy rate after SET (N = 205) and subsequent frozen embryo transfer (FET) similar to the cumulative pregnancy rate obtained after double embryo transfer (N = 394) and subsequent FET (46.3 vs 46.7%, NS). Twin delivery rate were respectively 2,6% after SET and 26,6% after double embryo transfer (P < 0.01).


Asunto(s)
Criopreservación , Transferencia de Embrión , Técnicas Reproductivas Asistidas , Resultado del Tratamiento , Adulto , Transferencia de Embrión/efectos adversos , Transferencia de Embrión/tendencias , Femenino , Fertilización In Vitro , Francia , Humanos , Embarazo , Embarazo Múltiple , Técnicas Reproductivas Asistidas/estadística & datos numéricos , Técnicas Reproductivas Asistidas/tendencias , Inyecciones de Esperma Intracitoplasmáticas , Gemelos
4.
Gynecol Obstet Fertil ; 34(4): 317-22, 2006 Apr.
Artículo en Francés | MEDLINE | ID: mdl-16603403

RESUMEN

OBJECTIVE: Prevention of twin pregnancies using elective Single Embryo Transfer (e-SET) is now considered by many Assisted Reproductive Techniques teams as a necessity. The aim of this study was to assess the efficacy of e-SET in a prospective manner in a selective population of patients using Take Home Baby Rate per couple as principal parameter. PATIENTS AND METHODS: This prospective study was conducted from January 2003 to December 2004. Elective Single Embryo was proposed to women above 37 years in their first IVF or ICSI attempt. It was then performed only in cases when at least one embryo with high implantation potential (score-4 embryo in our embryo scoring) was obtained for transfer and one more (score-3 or score-4 embryo) was available for freezing. RESULTS: e-SET was proposed and accepted in 225 couples (25% of eligible couples and 7.8% of total population) and was possible in 96 of these). Two embryos were transferred in all other eligible patients (Double Embryo Transfer group=DET). Cumulative delivery rate after fresh embryo transfers and, if necessary, after frozen-thawed embryo transfers were 39.5% per couple e-SET group and 41.7% in DET group (NS). On the other hand, the percentage of twin pregnancies was significantly different between the two groups (2.6% vs 26.6% respectively; P<0.01). DISCUSSION AND CONCLUSION: In women younger than 37 years in their first IVF/ICSI attempt, the elective transfer of only one embryo with high implantation potential strongly allowed to avoid twin pregnancies without any significant delivery rate decrease. This transfer policy is particularly efficient in laboratories displaying good results in their embryo freezing program.


Asunto(s)
Transferencia de Embrión , Selección de Paciente , Criopreservación , Femenino , Humanos , Embarazo , Resultado del Embarazo , Embarazo Múltiple/estadística & datos numéricos , Estudios Prospectivos , Gemelos
5.
Hum Reprod ; 21(3): 632-9, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16361296

RESUMEN

BACKGROUND: This study was designed to assess whether the use of ganirelix in women undergoing stimulated IUI could prevent the occurrence of premature LH rises and luteinization (LH+progesterone rises). METHODS: Women of infertile couples, diagnosed with unexplained or male factor infertility, were randomized to receive either ganirelix (n=103) or placebo (n=100) in a double-blind design. All women were treated with an individualized, low-dose rFSH regimen started on day 2-3 of cycle. Ganirelix (0.25 mg/day) was started if one or more follicles>or=14 mm were visualized. Ovulation was triggered by HCG injection when at least one follicle>or=18 mm was observed and a single IUI was performed 34-42 h later. The primary efficacy outcome was the incidence of premature LH rises (+/-progesterone rise). RESULTS: In the ganirelix group, four subjects had a premature LH rise (value>or=10 IU/l), one LH rise prior to the start of ganirelix and three LH rises during ganirelix treatment, whereas in the placebo group 28 subjects had a premature LH rise, six subjects prior to the start of placebo and 22 subjects during placebo treatment. The incidence of LH rises was significantly lower in ganirelix cycles compared to placebo cycles (3.9 versus 28.0%; P=0.003 for ITT analysis). When excluding subjects with an LH value>or=10 IU/l before the start of ganirelix/placebo the incidence of LH rises was also significantly lower in ganirelix cycles compared to placebo cycles (2.9 versus 23.4%; P=0.003 for ITT analysis). Premature luteinization (LH rise with concomitant progesterone rise>or=1 ng/ml) was observed in one subject in the ganirelix group and in 17 subjects in the placebo group of which three subjects had a premature spontaneous ovulation. Ongoing pregnancy rates per attempt were 12.6 and 12.0% for the ganirelix and placebo groups respectively. CONCLUSIONS: Treatment with ganirelix effectively prevents premature LH rises, luteinization in subjects undergoing stimulated IUI. Low-dose rFSH regimen combined with a GnRH antagonist may be an alternative treatment option for subjects with previous proven luteinization or in subjects who would otherwise require insemination when staff are not working.


Asunto(s)
Hormona Liberadora de Gonadotropina/análogos & derivados , Inseminación Artificial Heteróloga/métodos , Hormona Luteinizante/metabolismo , Folículo Ovárico/citología , Adolescente , Adulto , División Celular/efectos de los fármacos , Gonadotropina Coriónica/sangre , Método Doble Ciego , Estradiol/sangre , Femenino , Hormona Folículo Estimulante/sangre , Hormona Liberadora de Gonadotropina/farmacología , Antagonistas de Hormonas/farmacología , Humanos , Inseminación/efectos de los fármacos , Hormona Luteinizante/sangre , Masculino , Folículo Ovárico/efectos de los fármacos , Placebos , Embarazo
6.
Reprod Biomed Online ; 11(3): 319-24, 2005 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16176671

RESUMEN

This prospective study evaluated the crude cumulative delivery rate following delayed intracytoplasmic sperm injection (ICSI) using spermatozoa recovered by testicular extraction (TESE) and intentionally frozen in men with non-obstructive azoospermia (NOA). This procedure can be termed 'cryoTESE-ICSI'. This study involved a series of 118 patients who underwent testicular biopsy for diagnosis of NOA in the period from January 1998 to December 2002. Testicular histology confirmed the diagnosis of NOA. Testicular parenchyma was obtained surgically from both testicles under general anaesthesia. Cryopreservation of spermatozoa was performed in 51 of 118 patients (43%). Ninety-nine delayed ICSI procedures were performed. Frozen-thawed suspensions were used in all cycles. Application of pentoxifylline was required to stimulate spermatozoa in 52% of cases. Fertilization, embryo transfer, and ongoing pregnancy rates were 60, 98 and 29% respectively. The crude cumulative delivery rate was 49% after two cycles and 57% after four cycles. A total of 39 healthy children were born in 29 deliveries. Thus, cryoTESE-ICSI is an effective procedure for routine use in patients with NOA. The main advantages of cryoTESE-ICSI are to (i) avoid repeated surgical biopsy, (ii) ensure the availability of spermatozoa when the ovarian stimulation cycle is begun, and (iii) allow programmed biopsy and therefore dissociate it from ICSI.


Asunto(s)
Criopreservación/métodos , Parto Obstétrico/estadística & datos numéricos , Oligospermia/patología , Preservación de Semen/métodos , Inyecciones de Esperma Intracitoplasmáticas/métodos , Espermatozoides/fisiología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pentoxifilina/farmacología , Embarazo , Resultado del Embarazo , Índice de Embarazo , Estudios Prospectivos , Técnicas Reproductivas Asistidas , Espermatozoides/efectos de los fármacos , Testículo/citología
7.
Hum Reprod ; 20(10): 2838-43, 2005 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15980007

RESUMEN

BACKGROUND: Since 2001, French law has permitted the use of assisted reproductive technology in human immunodeficiency virus (HIV)-1 infected women under strict conditions. This report describes a preliminary series of seropositive women who underwent assisted reproduction treatment at our facility. To minimize contamination of culture media, equipment, and therefore of male gametes and embryos, we chose to perform ICSI in all cases. The outcome of ICSI was compared with the outcome in an age-matched group of non-HIV-1-infected women. Since several previous reports have indicated that HIV infection may be associated with a decrease in spontaneous fertility, our goal was also to assess the fertility status of the HIV-1-infected women entering our ICSI programme. METHODS: The French law governing the use of assisted reproduction protocols in HIV-1-infected women was strictly applied. The inclusion criteria were absence of ongoing disease, CD4((+)) count >200 cells/mm(3), and stable HIV-1 RNA level. Since mean age at the time of ICSI was higher in HIV-1-infected women than in the overall group of non-HIV-infected women, we compared outcome data in HIV-1-infected women (group I) to a group of non-HIV-1-infected women matched with regard to age and follicle retrieval period (group II) as well as to the overall group of women who underwent ICSI at our institution (group III). RESULTS: A total of 66 ovarian stimulations was performed in 29 HIV-1-infected-infected women. The percentage of cancelled cycles was higher in infected women than in matched controls (15.2 versus 4.9%, P < 0.05). The duration of ovarian stimulation (13.3 versus 11.7 days, P < 0.05) and amount of recombinant FSH injected (2898 versus 2429 IU, P < 0.001) were also higher in infected women. The number of retrieved oocytes, mature oocytes, and embryos obtained as well as embryo quality was similar in all groups. The fertilization rate was higher in infected women than in matched controls (67 versus 60%, P < 0.01). The pregnancy rate was not significantly different between groups I and II (16.1 versus 19.6%) in spite of the fact that the number of embryos transferred was purposefully restricted in the HIV-1-infected group to minimize multiple pregnancy (2.0 versus 2.4, not significant). CONCLUSION: The results of this preliminary series of ICSI cycles in HIV-1-infected women indicate that optimal ovarian stimulation is slightly more difficult to achieve than in matched seronegative women. However, when criteria for oocyte retrieval were fulfilled, ICSI results were similar to those of age-matched controls.


Asunto(s)
Infecciones por VIH/complicaciones , Complicaciones Infecciosas del Embarazo , Inyecciones de Esperma Intracitoplasmáticas/métodos , Adulto , Linfocitos T CD4-Positivos/metabolismo , Estudios de Casos y Controles , Femenino , VIH/metabolismo , Seropositividad para VIH , Humanos , Masculino , Oocitos/metabolismo , Inducción de la Ovulación , Embarazo , Índice de Embarazo , Embarazo de Alto Riesgo , ARN/metabolismo , ARN Viral/química , Inyecciones de Esperma Intracitoplasmáticas/legislación & jurisprudencia , Resultado del Tratamiento
8.
Gynecol Obstet Fertil ; 31(1): 55-65, 2003 Jan.
Artículo en Francés | MEDLINE | ID: mdl-12659786

RESUMEN

The goal of the treatment of infertility is to apply therapeutic techniques to patients in a safe manner and at the same time increase the chances for conceiving and delivering healthy babies: basic and clinical research is more and more finalized directed to these goals. The conference "Advances in Infertility Treatment" held in Fort Lauderdale, Florida on January 24-26, 2002 covered many clinical and research aspects of this important therapeutic area. Important discussed issues included the impact of age, lifestyle, and the genetic set-up of patients in the pathogenesis and development of infertility-causing disorders such as male reproductive dysfunction, polycystic ovary syndrome, and ovarian failure. New ovulation induction regimens that may optimize, reduce complications, and lower costs of ovarian stimulation procedures and of assisted reproduction in general were presented. This was the 5th Ferring Pharmaceuticals Conference in the area of reproductive medicine held in Florida.


Asunto(s)
Infertilidad/terapia , Aborto Espontáneo/prevención & control , Costos y Análisis de Costo , Femenino , Florida , Humanos , Infertilidad Femenina/etiología , Infertilidad Femenina/terapia , Infertilidad Masculina/terapia , Hormona Luteinizante/administración & dosificación , Masculino , Menotropinas , Oocitos/fisiología , Inducción de la Ovulación/economía , Inducción de la Ovulación/métodos , Síndrome del Ovario Poliquístico/complicaciones , Embarazo , Diagnóstico Preimplantación , Técnicas Reproductivas Asistidas , Inyecciones de Esperma Intracitoplasmáticas
9.
Fertil Steril ; 75(3): 525-31, 2001 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-11239536

RESUMEN

OBJECTIVE: To compare the value of 17 IVF variables, including a new mean score of transferred embryos (MSTE), in predicting pregnancy rate. DESIGN: Retrospective study. SETTING: Private IVF unit. PATIENT(S): Women who underwent 10,000 embryo transfers. MAIN OUTCOME MEASURE(S): Duration of infertility, type of infertility, female age, rank of IVF attempt, type of ovarian treatment, progesterone level, sperm count, sperm motility, sperm morphology, number of retrieved oocytes, number of mature oocytes, maturation rate, number of embryos obtained, fertilization rate, number of transferred embryos, cumulative embryo score (CES), mean score of transferred embryos (MSTE), and pregnancy rate. RESULT(S): Outcome of IVF-ET was significantly correlated with female age, type of infertility, number of retrieved oocytes, number of mature oocytes, maturation rate, embryos obtained, fertilization rate, transferred embryos, CES, and MSTE. Multivariate analysis demonstrated that MSTE was a better predictor of pregnancy than the number of transferred embryos and female age. CONCLUSION(S): Embryo quality is the best predictor of pregnancy. The embryo score described herein should be used in IVF-ET programs to choose the best embryos for transfer.


Asunto(s)
Factores de Edad , Transferencia de Embrión , Embrión de Mamíferos/fisiología , Adulto , Recuento de Células , Femenino , Fertilización In Vitro , Humanos , Infertilidad/terapia , Masculino , Análisis Multivariante , Oocitos/fisiología , Embarazo , Progesterona/sangre , Estudios Retrospectivos , Recuento de Espermatozoides , Motilidad Espermática , Espermatozoides/anomalías
10.
J Cutan Med Surg ; 5(6): 490-5, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11907858

RESUMEN

BACKGROUND: Sebaceous carcinomas are relatively rare cutaneous tumors; there are fewer than 600 cases reported. They most commonly arise within the meibomian gland of the eyelid; fewer than 150 of the reported cases were extraocular. These tumors have a high incidence of local recurrence and regional metastasis. The relationship of sebaceous tumors and visceral malignancy is well established in the literature. OBJECTIVE: We describe a 44-year-old white female with chronic progressive multiple sclerosis who developed multiple scalp sebaceous adenomas and a solitary sebaceous carcinoma. CONCLUSION: Extraocular sebaceous carcinomas are rare tumors with high incidence of local recurrence and regional metastasis. Surgery with wide surgical margins is the standard treatment. We report the first case of multiple sebaceous tumors in a patient with multiple sclerosis. The presence of sebaceous tumors warrants a search for an internal malignancy. Literature on sebaceous tumors and their relationship with visceral malignancies and immunologic disorders is discussed. Literature on sebaceous carcinoma with special attention to extraocular sebaceous carcinoma is also discussed.


Asunto(s)
Adenocarcinoma Sebáceo/complicaciones , Adenoma/complicaciones , Neoplasias de Cabeza y Cuello/complicaciones , Esclerosis Múltiple/complicaciones , Neoplasias Primarias Múltiples/patología , Cuero Cabelludo , Neoplasias Cutáneas/complicaciones , Adenocarcinoma Sebáceo/patología , Adenoma/patología , Adulto , Femenino , Neoplasias de Cabeza y Cuello/patología , Humanos , Neoplasias Cutáneas/patología
11.
J Assist Reprod Genet ; 17(4): 194-9, 2000 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-10955242

RESUMEN

PURPOSE: Pentoxifylline (PF) has been used to enhance sperm motility in many in vitro fertilization programs. The twofold purpose of this study was to determine whether PF stimulates fresh or frozen epididymal and testicular totally immotile spermatozoa and whether it can be used to select viable spermatozoa for intracytoplasmic sperm injection (ICSI). METHODS: To test the effect of PF on motility, 10 samples of totally immotile spermatozoa were incubated for 10 min with 3.6 mM PF. Motility was initiated in all cases (14.8% mean motility after PF treatment of five samples of fresh or frozen epididymal spermatozoa and 13.6% mean motility of five samples of fresh or frozen testicular spermatozoa). To assess PF for selection of viable spermatozoa before ICSI, we compared the outcome of ICSI in 20 cycles using fresh or frozen epididymal or testicular PF-treated immotile spermatozoa and 139 control ICSI using fresh or frozen epididymal or testicular spontaneously motile spermatozoa. RESULTS: Fertilization rates were similar in the PF and control groups (45.2% vs. 51.0%). Embryo quality and division stages at the time of transfer were comparable. Six pregnancies occurred in PF-ICSI group (30.0% per cycle vs. 26.6% in control group) including two deliveries of healthy children and four ongoing pregnancies.


Asunto(s)
Pentoxifilina/farmacología , Inhibidores de Fosfodiesterasa/farmacología , Inyecciones de Esperma Intracitoplasmáticas/métodos , Motilidad Espermática/efectos de los fármacos , Espermatozoides/efectos de los fármacos , Adulto , Embrión de Mamíferos , Desarrollo Embrionario y Fetal , Epidídimo/citología , Femenino , Humanos , Masculino , Pentoxifilina/administración & dosificación , Inhibidores de Fosfodiesterasa/administración & dosificación , Embarazo , Resultado del Embarazo , Motilidad Espermática/fisiología , Espermatozoides/fisiología , Testículo/citología
12.
Am Surg ; 66(3): 296-301, 2000 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-10759203

RESUMEN

Knowledge of the path of a bullet and how it terminates is critical for expeditious assessment and optimal management of patients with gunshot wounds. To assess the accuracy of physical examination and X-rays in these patients, a prospective study was undertaken for all gunshot victims seen for a 1-year period on a single trauma service. The paramedics and trauma surgeons' physical examinations were evaluated for whether a bullet tract could be accurately categorized as 1) through and through, 2) graze, 3) palpable under dermis, or 4) retained (ie, not palpable). The impact of X-rays was assessed with regard to how it affected the trauma surgeons' categorization. A total of 78 patients were seen with a total of 120 bullet tracts. Seventy-seven per cent were injured by assault, and 64 per cent were shot with a 9-mm or .38-caliber handgun. Twenty of 60 (33%) bullet tracts on the torso terminated with a missile that was palpable under dermis, but only 2 of 10 neck (20%), 1 of 28 extremity (4%), and 1 of 22 head/face (5%) did so. Paramedics evaluated 15 torso bullet tracts that ended palpable under dermis, of which they detected 5 (33%). Upon initial examination, the trauma surgeon detected 11 of 20 torso bullet tracts that ended palpable under dermis (55%), and detected 14 of the 20 after X-rays were done (70%). Overall, obtaining X-rays changed the categorization for 15 of 111 bullet tracts (13%). We conclude that bullet tracts on the torso result in a subcutaneously palpable bullet one-third of the time, much more frequently than in other body regions. Paramedics only detect one-third of subcutaneously palpable missiles on the torso. X-rays change the categorization of bullet tracts infrequently. We recommend that a careful examination of the skin of the torso to detect palpable missiles be incorporated into the secondary survey of patients with wounds to that body region.


Asunto(s)
Heridas por Arma de Fuego/diagnóstico , Técnicos Medios en Salud , Femenino , Humanos , Masculino , Palpación , Estudios Prospectivos , Radiografía , Traumatología , Heridas por Arma de Fuego/diagnóstico por imagen
13.
Hum Reprod ; 15(1): 29-35, 2000 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-10611184

RESUMEN

A prospective, randomized, double-blind, multicentre (n = 6) study was conducted to compare the influence of either a 150 or 250 IU daily fixed-dose regimen of recombinant follicle stimulating hormone (FSH, Puregon) on the number of oocytes retrieved and the total dose used in down-regulated women between 30 and 39 years of age undergoing ovarian stimulation. In all, 138 women were treated with recombinant FSH, 67 with 150 IU and 71 with 250 IU. The number of oocytes retrieved in the low-dose group was 9.1 compared to 10.6 in the high-dose group (not significant). In the 30-33 years of age class receiving the 250 IU dose, a surplus of 4.2 oocytes (14.8 versus 10.6) was found, whereas in the 37-39 age class nearly one oocyte more was retrieved in the 150 IU group (8.1 versus 7.4). The total dose used to reach the criterion for human chorionic gonadotrophin (HCG) administration was 1727 IU for the women treated with 150 IU daily and 2701 IU for the 250 IU treated women (P < 0. 001). No significant relationships were found between serum FSH concentrations as obtained in the early follicular phase and the number of oocytes collected, or the total dose. It is concluded that in women between 30 and 39 years of age, the decline in number of oocytes retrieved with increasing age cannot be overcome by augmenting the daily dose of recombinant FSH from 150 to 250 IU.


Asunto(s)
Envejecimiento , Hormona Folículo Estimulante/administración & dosificación , Oocitos , Inducción de la Ovulación , Adulto , Recuento de Células , Método Doble Ciego , Transferencia de Embrión , Femenino , Fertilización In Vitro , Hormona Folículo Estimulante/efectos adversos , Hormona Folículo Estimulante/sangre , Hormona Folículo Estimulante Humana , Humanos , Embarazo , Estudios Prospectivos , Proteínas Recombinantes/administración & dosificación , Proteínas Recombinantes/efectos adversos , Inyecciones de Esperma Intracitoplasmáticas
14.
Hum Reprod ; 12(5): 1069-72, 1997 May.
Artículo en Inglés | MEDLINE | ID: mdl-9194668

RESUMEN

The purpose of this study was to retrospectively compare the overall results and embryo quality in 102 cycles of in-vitro fertilization (IVF)-embryo transfer using normal frozen donor semen (group D) and 94 cycles of IVF-embryo transfer using husbands' teratozoospermic sperm (group T). Donor semen was purchased from men with proven fertility and normal semen parameters. Teratozoospermia was defined in group T as the presence of <20% of normal spermatozoa in semen on the day of oocyte retrieval. Exclusion criteria were a sperm count <10 x 10(6)/ml or with <10% progressive motility. Fertilization rate, transfer rate and number of transferred embryos per cycle were significantly lower in the teratozoospermic group (45 vs 72%, 66 vs 96%, 1.7 vs 2.9%, respectively). Pregnancy rate per cycle was also lower, but not significantly (18 vs 28%). However, pregnancy rate per transfer, implantation rate per transferred embryo and take home baby rate were comparable (27 vs 30%, 15 vs 15%, 21 vs 24%, respectively). Similarly, embryo quality in terms of number of embryos displaying fragmentations or irregular cells, cleavage stages and embryo scores were comparable. When group T was divided into two subgroups according to sperm count (group T1: sperm count = 10-20 x 10(6)/ml; group T2: sperm count >20 x 10(6)/ml), there was no difference between them with regard to fertilization rate, pregnancy rate or embryo quality. This study confirms low pregnancy rate per cycle in IVF-embryo transfer using teratozoospermic semen, but demonstrates for the first time that embryo quality and viability are not impaired. It is proposed that the poor pregnancy rate per cycle obtained is due only to the poor fertilization rate, and to the subsequent limited choice of embryos to be transferred.


Asunto(s)
Transferencia de Embrión , Embrión de Mamíferos/fisiología , Fertilización In Vitro , Espermatozoides/anomalías , Criopreservación , Embrión de Mamíferos/ultraestructura , Femenino , Frecuencia Cardíaca Fetal , Humanos , Inseminación Artificial Heteróloga , Masculino , Embarazo , Índice de Embarazo , Estudios Retrospectivos , Preservación de Semen
15.
Contracept Fertil Sex ; 24(9): 657-60, 1996 Sep.
Artículo en Francés | MEDLINE | ID: mdl-8998513

RESUMEN

The prognostic value of the score of embryo transfer (SET) was assessed on 1079 embryo transfers in a homogene population of patients. The SET is obtained adding the embryo score (ES) of each transferred embryos. ES is based both on the conventional parameters of embryo morphology, and on the 4-cell stage which is the optimum division stage regarding implantation. The SET is strongly correlated with the pregnancy rate (p < 10-5), and is, with the mean score of transferred embryos (MSTE), the most sensitive and specific parameter of all studied parameters. However, embryo quality seems not to be correlated with miscarriages.


Asunto(s)
Implantación del Embrión , Transferencia de Embrión , Embrión de Mamíferos , Embarazo/estadística & datos numéricos , Adulto , Femenino , Humanos , Valor Predictivo de las Pruebas
16.
Hum Reprod ; 10(9): 2427-31, 1995 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-8530679

RESUMEN

The purpose of this study was to devise an embryo score to predict the likelihood of successful implantation after in-vitro fertilization (IVF). Unlike most studies dealing with the influence of embryo stage and morphology on pregnancy, our study was based on single rather than multiple embryo transfers. A total of 957 single embryo transfers were carried out. No delivery was obtained after any of the 99 transfers using 1-cell embryos or embryos obtained after delayed fertilization. In the remaining 858 transfers, the embryos had cleaved. Higher pregnancy rates were obtained with embryos displaying no irregular cells (11.7 versus 6.9%; P < 0.01) and embryos displaying no fragmentation (11.5 versus 8.1%; P < 0.05). The 4-cell embryos implanted 2-fold more often than embryos with more or less cells (15.6 versus 7.4%; P < 0.01). Based on these observations, we devised a 4-point embryo score in which embryos are assigned 1 point each if they (i) are cleaved, (ii) present no fragmentation, (iii) display no irregularities, and (iv) have four cells. Both pregnancy rate and take home baby rate were significantly correlated with embryo score. Each point of this score corresponds to a 4% increase in pregnancy rate. Interestingly, pregnancy rate was significantly lower in women aged > 38 years (8.2 versus 11.4%; P < 0.05), even though embryo quality was similar regardless of age. Single embryo transfer allowed us to define a simple and useful embryo score to choose the best embryo for transfer to optimize IVF and embryo transfer outcome. The use of this embryo score could decrease multiple pregnancies after multiple embryo transfers.


Asunto(s)
Implantación del Embrión , Transferencia de Embrión , Embrión de Mamíferos/fisiología , Fertilización In Vitro , Adulto , Blastómeros/citología , Embrión de Mamíferos/citología , Femenino , Humanos , Edad Materna , Embarazo , Resultado del Embarazo , Embarazo de Alto Riesgo , Estudios Retrospectivos
17.
Contracept Fertil Sex ; 23(7-8): 471-3, 1995.
Artículo en Francés | MEDLINE | ID: mdl-7550563

RESUMEN

We report here the results of a study comparing the quality of the embryos obtained after conventional IVF and after ICSI (respectively 872 and 459 embryos for 184 and 108 cycles). In the ICSI group, the female age was lower than in the IVF group, the oestradiol level on the day of hCG injection was higher, so that the number of retrieved oocytes and the number of mature oocytes. The policy of transfer being the same in the two groups, the mean number of transferred embryos was identical. The percentage of embryos without anucleate fragments, the percentage of embryos without irregularities, the percentage of 1, 2, 3, 4 or 5-cell embryos and the distribution of embryos in the 5 embryo scores were similar. In both IVF and ICSI groups, the transfer score (sum of the embryo scores of each transferred embryo) was higher for the patients who achieved pregnancy.


Asunto(s)
Transferencia de Embrión/métodos , Desarrollo Embrionario y Fetal , Fertilización In Vitro/métodos , Adulto , Embrión de Mamíferos/anomalías , Estradiol/sangre , Femenino , Humanos , Masculino , Edad Materna , Microinyecciones/métodos , Embarazo , Resultado del Embarazo
18.
Contracept Fertil Sex ; 22(6): 418-22, 1994 Jun.
Artículo en Francés | MEDLINE | ID: mdl-8075659

RESUMEN

The purpose of this study was to compare visual and computerized assisted semen analysis (CASA) in an in vitro fertilization program. Both methods were performed on the day of 316 oocyte retrievals. CASA was performed using a Hamilton 7.2 device adjusted in accordance with the settings defined by a group of 14 French centers. Despite a few discrepancies, the correlation between visual and CASA sperm counts was significant (p < 0.001), so that between the two total motility assessments. The same correlation (Pearson's test) was observed between the fertilization rate and the parameters obtained by visual analysis and CASA. VAP, VSL, VCL and ALH exhibited threshold values under which the mean fertilization rate was below 50%. This study demonstrates the satisfactory reliability of CASA although it cannot yet replace visual analysis.


Asunto(s)
Diagnóstico por Computador , Fertilización In Vitro , Infertilidad Masculina/diagnóstico , Óptica y Fotónica , Motilidad Espermática , Femenino , Humanos , Masculino , Embarazo , Resultado del Embarazo , Estudios Prospectivos , Reproducibilidad de los Resultados , Recuento de Espermatozoides
19.
Fertil Steril ; 60(6): 1057-61, 1993 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-8243686

RESUMEN

OBJECTIVE: To assess the value of subzonal insemination (SUZI) in cases of total or extreme asthenozoospermia. DESIGN: The results of IVF after SUZI were assessed in six cycles (four couples) with documented asthenozoospermia. SETTING: Institut de Médecine de la Reproduction, Marseille, France. PATIENTS: Four couples underwent six retrieval cycles. In all cases asthenozoospermia was total (100% of immotile spermatozoa) or extreme (5% nonprogressive motility). Oligozoospermia and teratozoospermia were ruled out in all cases. In two cases electron microscopy revealed the absence of the central singlet in the flagellum axonemal complex and in one case a major dysplasia of the fibrous sheath in the flagellum principal piece. RESULTS: The overall fertilization rate was 45%. The diploid embryo rate was 33%. Embryo quality was satisfactory. In five of six cycles, three embryos were transferred. Two triplet pregnancies were obtained corresponding to an implantation rate per transferred embryo of 40%. CONCLUSION: Total or extreme asthenozoospermia seems to be a good indication for SUZI.


Asunto(s)
Fertilización In Vitro/métodos , Infertilidad Masculina/terapia , Adulto , Transferencia de Embrión , Femenino , Humanos , Infertilidad Masculina/patología , Infertilidad Masculina/fisiopatología , Masculino , Microscopía Electrónica , Embarazo , Motilidad Espermática , Cola del Espermatozoide/ultraestructura , Espermatozoides/anomalías , Espermatozoides/ultraestructura , Trillizos
20.
Contracept Fertil Sex ; 21(7-8): 604-7, 1993.
Artículo en Francés | MEDLINE | ID: mdl-8358455

RESUMEN

This case report describes a patient presenting a cyst of the prostatic utricule that was detected during assessment for sterility and removed surgically. A review of the pertinent literature is proposed. Azoospermia or severe oligospermia associated with a low ejaculation volume are the main manifestations. Transrectal ultrasonography is the diagnostic examination of choice. In most cases incision of the mouth of the utricule promptly abolishes sterility and enables fertilization.


Asunto(s)
Quistes/complicaciones , Infertilidad Masculina/etiología , Oligospermia/etiología , Enfermedades de la Próstata/complicaciones , Adulto , Quistes/diagnóstico por imagen , Quistes/epidemiología , Quistes/cirugía , Femenino , Humanos , Masculino , Embarazo , Resultado del Embarazo , Enfermedades de la Próstata/diagnóstico por imagen , Enfermedades de la Próstata/epidemiología , Enfermedades de la Próstata/cirugía , Ultrasonografía
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...