Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 36
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Andrologia ; 50(2)2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28762516

RESUMO

To study the outcome of FISH sperm examination in cases with sperm pathology and outline the potential correlation with certain chromosomal defects. A retrospective study of prospectively collected data was performed in IAKENTRO, Infertility Treatment Center. Rates of abnormal FISH semen examination were compared between male infertility patients and fertile controls. Detection of abnormal FISH semen examination as well as each chromosomal abnormality detected was correlated with each sperm deficiency (asthenozoospermia, oligozoospermia and teratozoospermia) in a univariate regression model. There were 72 male partners included, of which 52 male infertility patients and 20 controls. The rate of abnormal sperm FISH examination was significantly higher in patients' group (55.8% vs. 15.0% for controls, p = .002). Asthenozoospermia, oligozoospermia and teratozoospermia were significantly correlated with detection of abnormal FISH examination (p = .004, p = .01 and p < .001 respectively). Teratospermia was significantly correlated with increased aneuploidy rate for chromosome 17 (p = .005), chromosome X (p = .05) and Y (p = .03). FISH examination reveals pathology in a significant proportion of patients with sperm defects and should be recommended to achieve early detection of chromosomal defects that may postpone favourable reproductive outcome.


Assuntos
Astenozoospermia/fisiopatologia , Oligospermia/fisiopatologia , Análise do Sêmen/métodos , Espermatozoides/patologia , Teratozoospermia/fisiopatologia , Adulto , Aneuploidia , Astenozoospermia/genética , Estudos de Casos e Controles , Cromossomos Humanos Par 17/genética , Cromossomos Humanos X/genética , Cromossomos Humanos Y/genética , Humanos , Hibridização in Situ Fluorescente , Masculino , Oligospermia/genética , Estudos Prospectivos , Estudos Retrospectivos , Teratozoospermia/genética
2.
Reprod Biomed Online ; 26(6): 595-602, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23602678

RESUMO

Vitrification has been successfully applied in the cryopreservation of oocytes and embryos. It can be achieved either by direct (open system) or indirect (closed system) contact with liquid nitrogen. Unlike embryo vitrification, few reports have been published regarding oocyte vitrification in closed systems. In order to validate the effectiveness of a closed and aseptic vitrification approach for oocyte cryopreservation, a prospective, randomized study was performed. Sibling oocytes donated from the same donor were randomly and equally assigned into closed or open vitrification groups. A total of 75 vitrification-warming cycles were performed in each group. Apart from the survival rate (82.9% versus 91.0%, P<0.05), no statistically significant differences were observed in pregnancy (ß-human chorionic gonadotrophin positive) (42.7% versus 33.3%), clinical pregnancy (36.0% versus 28.0%), implantation (13.8% versus 10.1%), ongoing pregnancy (33.3% versus 24.0%) and live birth (36.0% versus 24.0%) rates between the closed and open groups, and 27 and 18 healthy babies were born, respectively. This study shows that the replacement of the open vitrification system by a closed system has no impact on clinical pregnancy and implantation rates. Therefore, the closed vitrification system provides an aseptic alternative to the open method for oocyte vitrification.


Assuntos
Oócitos , Irmãos , Vitrificação , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Gravidez , Estudos Prospectivos
3.
Reprod Biomed Online ; 26(5): 470-6, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23507132

RESUMO

The use of open carriers for embryo vitrification has raised safety concerns and therefore vitrification in closed systems has been proposed. However, the drop in the cooling rate emerges as a major drawback. The objective of the present study was to compare the efficiency of vitrification in open versus closed conditions. Blastocysts were randomly allocated either to open ultra-rapid vitrification (group I) or closed aseptic vitrification (group II). In group I, blastocysts were exposed to two solutions of ethylene glycol/dimethylsulphoxide (10%/10% and 20%/20%), while in group II, blastocysts were pretreated with a solution of lower concentration (5%/5%). A total of 208 and 224 vitrification-warming cycles were performed for groups I and II, respectively. Both groups were equal in terms of maternal age, sperm parameters and number and quality of blastocysts vitrified, warmed and transferred per cycle. Importantly, there was no significant difference between the groups in the analysed outcomes; embryo survival rate (84.1% versus 82.1%), clinical pregnancy rate (45.9% versus 42.4%), implantation rate (25.6% versus 24.5%), cycle cancellation rate (6.7% versus 8.5%) and live birth rate (41.2% versus 41.0%). These data suggest that ultra-rapid vitrification may be replaced by aseptic vitrification without affecting clinical efficiency.


Assuntos
Blastômeros/fisiologia , Criopreservação/métodos , Doação de Oócitos/métodos , Taxa de Gravidez , Vitrificação , Adulto , Blastômeros/efeitos dos fármacos , Crioprotetores/farmacologia , Dimetil Sulfóxido/farmacologia , Relação Dose-Resposta a Droga , Etilenoglicol/farmacologia , Feminino , Humanos , Gravidez , Resultado da Gravidez , Estudos Prospectivos
4.
Minerva Ginecol ; 65(4): 445-51, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24051944

RESUMO

AIM: The aim of this paper was to evaluate the effectiveness of sublingual use of misoprostol in women undergoing first trimester surgical abortion. Special consideration was given in a sub-group analysis according to parity. METHODS: A retrospective study was conducted, enrolling patients during 2006-2009. Pregnancies less than 12 weeks of gestation were exclusively included. Our sample was divided in: group 1, in which we included women who had received 400 mcg of misoprostol sublingually two hours before surgical abortion and group 2, with no use of misoprostol. Cervical dilatation and estimated blood loss (EBL) were compared between the two groups. Moreover, a sub-group analysis of the former parameters was made separately in nulliparous and multiparous women. RESULTS: Out of 79 patients included, 48 (60.75%) received misoprostol, while 31 (39.25%) did not. Cervical dilatation was significantly higher in group 1 (6.4±2.1 mm vs. 4.7±1.7 mm in group 2, P=0.001), while EBL was significantly lower in the same group (105.0±22.1 mL vs. 120.3±24.2 mL for group 2, P=0.005). Concerning the sub-analysis, cervical dilatation was significantly increased and EBL was significantly lower in multiparous receiving misoprostol comparing with those who did not (P=0.001 and P=0.002, respectively). However, the same parameters did not differ significantly between the two sub-groups of nulliparous women. CONCLUSION: Sublingual administration of 400mcg misoprostol is effective concerning cervical ripening and EBL in women undergoing first trimester surgical abortion. According to the results of the present clinical trial prostaglandin E1 is more effective in multiparous group of women.


Assuntos
Abortivos não Esteroides/farmacologia , Aborto Induzido/métodos , Maturidade Cervical/efeitos dos fármacos , Misoprostol/farmacologia , Pré-Medicação , Abortivos não Esteroides/administração & dosagem , Administração Sublingual , Adulto , Dilatação e Curetagem , Avaliação de Medicamentos , Feminino , Humanos , Misoprostol/administração & dosagem , Paridade , Gravidez , Primeiro Trimestre da Gravidez , Estudos Retrospectivos , Adulto Jovem
5.
Clin Exp Obstet Gynecol ; 40(4): 542-5, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24597251

RESUMO

OBJECTIVE: The aim of this prospective randomized controlled cross sectional study was to evaluate the effect of a six month tibolone treatment in healthy postmenopausal women on biochemical CVD markers by calculating the changes of the blood serum levels of total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglycerides (Tg), high-sensitivity C-reactive protein (hsCRP), homocysteine (Hcy), and endothelin-1 (ET-1) at the beginning of the treatment and after six months. MATERIALS AND METHODS: Fifty-two healthy postmenopausal women were enrolled in a prospective, randomized, case-controlled outpatient trial. Group 1 (n = 26) received 2,5 mg/d tibolone for six months, while Group 2 (n = 26) received no treatment. Serum levels ofTC, LDL, HDL, Tg, hsCRP, Hcy, and ET-1 were evaluated at baseline and after six months. RESULTS: The two groups did not statistically differ at baseline characteristics. In Group 1 tibolone treatment decreased significantly TC (p = 0.01), HDL (p < 0.001), and Tg (p < 0.001) serum levels while a significant increase ofhsCRP (p < 0.001) was observed. Finally no changes were noticed on LDL, Hcy, and ET-1 serum levels. Regarding Group 2, no changes were observed. CONCLUSION: Short-term tibolone treatment in healthy postmenopausal women exerts a mixed action, acting beneficially in some markers (TC, LDL, Tg, Hcy, and ET-1) where as detrimentally in others (HDL, hsCRP).


Assuntos
Biomarcadores/sangue , Doenças Cardiovasculares/sangue , Norpregnenos/administração & dosagem , Pós-Menopausa/sangue , Proteína C-Reativa/análise , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , Colesterol/sangue , Estudos Transversais , Feminino , Humanos , Lipoproteínas HDL/sangue , Pessoa de Meia-Idade , Norpregnenos/efeitos adversos , Estudos Prospectivos , Fatores de Risco , Triglicerídeos/sangue
6.
Minerva Ginecol ; 64(2): 109-15, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22481621

RESUMO

AIM: The aim of the study was to examine the impact of pre-eclampsia on neonatal outcomes of late preterm deliveries. METHODS: A retrospective study was conducted, enrolling pregnancies delivered between 34 0/7 and 36 6/7 weeks of gestation during the period 2004-2007 in a large tertiary center. Pregnancies were divided in group 1, including those complicated with pre-eclampsia and group 2, including normotensive cases. Epidemiological characteristics, mode of delivery and complications contributing in late preterm delivery were initially studied. Neonatal morbidity parameters of our interest included mean Apgar score in the 1st and 5th minute, admission to Neonatal Intensive Care Unit (NICU) and need for emergency intubation. Intrauterine growth retardation (IUGR), low birth weight (LBW) and very LBW (VLBW), respiratory distress syndrome (RDS), hypoglycemia, NICU infection, abnormal cerebral ultrasonographic findings and duration of NICU residence were also compared between the two groups. RESULTS: Out of 363 late preterm pregnancies, 29 (8%) were delivered because of pre-eclampsia. Mean gestational week and birth weight were significantly lower in group 1. The rate of elective caesarean section was also significantly higher in this group. The same observation was made concerning rates of IUGR, LBW and VLBW neonates. Furthermore, incidence of NICU admission and hypoglycemia were significantly higher in the group of infants born by pre-eclamptic mothers. Incidence of RDS and cerebral echo pathology were also higher, but without significant difference when compared to group 2. CONCLUSION: Neonatal adverse outcomes were increased in late preterm infants of pre-eclamptic women in comparison with those of normotensive women.


Assuntos
Recém-Nascido de Baixo Peso , Recém-Nascido Prematuro , Unidades de Terapia Intensiva/estatística & dados numéricos , Pré-Eclâmpsia/epidemiologia , Nascimento Prematuro/epidemiologia , Adulto , Cesárea/estatística & dados numéricos , Parto Obstétrico/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/estatística & dados numéricos , Feminino , Retardo do Crescimento Fetal/epidemiologia , Grécia/epidemiologia , Maternidades , Hospitais Universitários , Humanos , Hipoglicemia/epidemiologia , Recém-Nascido , Gravidez , Resultado da Gravidez , Síndrome do Desconforto Respiratório do Recém-Nascido/epidemiologia , Estudos Retrospectivos
7.
Clin Exp Obstet Gynecol ; 38(1): 46-9, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21485725

RESUMO

PURPOSE OF INVESTIGATION: We performed a randomized clinical trial to estimate whether preoperative use of misoprostol may reduce intraoperative blood loss of patients treated by minimally invasive surgery (MIS), such as laparoscopic (LM) or laparoscopically assisted myomectomy (LAM). METHODS: Sixty-seven menstruating patients with three or less myomas of a maximum diameter of 90 mm, scheduled for MIS, were randomly allocated to receive a preoperative single dose of intravaginal misoprostol or placebo. Sixty-four patients remained in the final analysis: 30 in the misoprostol (I) and 34 in the placebo group (II). Estimated blood loss (EBL), decline of postoperative hemoglobin (Hb) and side-effects of administered agent were the outcomes of main interest. RESULTS: The EBL was significantly higher in the placebo versus misoprostol group (217 +/- 74 vs 126 +/- 41, respectively). Similarly, the decline of postoperative Hb was significantly higher in group II (1.6 +/- 0.43) compared to group I (1 +/- 0.33). The operative time was comparable in both groups, while the rate of side-effects was similar between groups. CONCLUSION: The preoperative use of misoprostol in patients with uterine fibroids managed by minimally invasive surgery significantly reduces intraoperative blood loss. Misoprostol might be useful for the prevention of postoperative anemia in more extended minimal invasive interventions, such as myomectomy of large fibroids or laparoscopic hysterectomy.


Assuntos
Perda Sanguínea Cirúrgica/prevenção & controle , Laparoscopia/métodos , Leiomioma/cirurgia , Misoprostol/administração & dosagem , Ocitócicos/administração & dosagem , Neoplasias Uterinas/cirurgia , Administração Intravaginal , Adulto , Distribuição de Qui-Quadrado , Feminino , Hemoglobinas/análise , Humanos , Projetos Piloto , Estudos Prospectivos
8.
Clin Exp Obstet Gynecol ; 38(3): 239-42, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21995155

RESUMO

PURPOSE OF INVESTIGATION: Amniocentesis-related adverse outcomes in singleton pregnancies and possible risk factors for fetal loss after mid-trimester amniocentesis performed in a single institution were investigated. METHODS: Amniocentesis-related adverse outcomes such as insufficient aspiration of amniotic fluid (AF), repeated puncture, and aspiration of hemorrhagic AF after mid-trimester amniocentesis were reviewed, while special consideration was given according to the placental location. Fetal loss rate up to 24 weeks of gestation and risk factors related to fetal losses were also investigated. RESULTS: 5,948 cases with the inclusion criteria were analyzed. Advanced maternal age was the most common indication (53%) for amniocentesis. A need for repeated puncture was overall 2.1% (n = 128) and was associated with a fundal placental location. Aspiration of hemorrhagic amniotic fluid was observed in 3.7% (n = 222) and was significantly associated with an anterior or fundal placental position. Fetal loss rate was 0.3% and there was no relationship with advanced maternal age (> or = 35 years), gestational age at amniocentesis > 18 weeks, repeated procedure, aspiration of hemorrhagic AF or placental location. CONCLUSION: Anterior or fundal placental position is a risk factor for amniocentesis-related adverse outcomes, however without significant contribution to the fetal losses. Placental location, advanced maternal age, amniocentesis gestational age > 18 weeks, and the procedure's adverse outcomes seem to have no impact on fetal loss rate.


Assuntos
Amniocentese/efeitos adversos , Morte Fetal , Placenta/diagnóstico por imagem , Segundo Trimestre da Gravidez , Adulto , Líquido Amniótico , Feminino , Hemorragia/etiologia , Humanos , Idade Materna , Gravidez , Fatores de Risco , Ultrassonografia
9.
Clin Exp Obstet Gynecol ; 38(2): 146-9, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21793276

RESUMO

PURPOSE OF INVESTIGATION: The objective of the study was to examine the impact of parity on pregnancy outcomes in women 35 years and older. METHODS: The study was a retrospective cohort of singleton pregnancies of women aged > or = 35 years old during the period 2004-2008. Women were divided in two groups: group 1 included primigravidas and group 2 those with at least one past labor. Epidemiological characteristics, obstetric and neonatal outcomes were analyzed using the t test and chi-square test. RESULTS: 816 out of 5834 (14%) cases involved women aging > or = 35 years, 234 (28.7%) of which were nulliparous and 582 (61.3%) multiparous. Rate of cesarean section was 2.4 fold higher for primigravidas (p < .0001). Fetal distress, prolonged labor and Neonate Intensive Care Unity (NICU) admission were also significantly higher in group 1. CONCLUSION: Adverse pregnancy outcomes were increased in primigravidas of 35 years and older compared to multigravidas of the same age.


Assuntos
Idade Materna , Paridade , Resultado da Gravidez/epidemiologia , Adulto , Cesárea/estatística & dados numéricos , Estudos de Coortes , Feminino , Sofrimento Fetal/epidemiologia , Humanos , Complicações do Trabalho de Parto/epidemiologia , Gravidez , Estudos Retrospectivos
10.
West Afr J Med ; 30(4): 250-4, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22669828

RESUMO

BACKGROUND: Current obstetric practice is characterised by a continuous increase in caesarean section (CS) delivery rates. OBJECTIVE: Main purpose of our study was to estimate the overall and annual rates of CS in a University Hospital in Greece. METHODS: This was a retrospective chart review of all singleton pregnancies delivered by CS between 2004 and 2008 at a gestational age > 24 weeks. The overall and annual CS rates were calculated. The rate of elective (Group 1) and emergency CS (Group 2) , as well as the specific indications in the two groups of the study were also analyzed. RESULTS: Overall 5362 singleton pregnancies were delivered in the period of the study. The overall CS rate was 29.2% (n = 1564). The mean ±SD maternal age in years of the women delivered by CS was 29.65 ± 6.72 years, while it was 27.10 ±5.63 years for those who delivered vaginally (P<0.0001). The overall rates of elective and emergency CS were 18.2% and 11.0% respectively in the 5-year period of the study. The most common indication for an elective CS was a previous CS (63.1%), which remained almost stable during the period of the study. The main indication for emergency CS was foetal distress in the first three years of the study, while labour progress failure was the leading indication in the last two years. CONCLUSION: In this series, the overall CS rate was high. A previous caesarean delivery accounts for about one third of all cases and constitutes the leading indication for elective CS while foetal distress is the most common indication for an emergency caesarean section.


Assuntos
Cesárea/tendências , Sofrimento Fetal/epidemiologia , Hospitais Universitários/estatística & dados numéricos , Adulto , Feminino , Seguimentos , Idade Gestacional , Grécia/epidemiologia , Humanos , Incidência , Gravidez , Estudos Retrospectivos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA