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1.
Fetal Diagn Ther ; 49(4): 196-205, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35671735

RESUMO

INTRODUCTION: A controversy exists about the accuracy of the cerebroplacental ratio (CPR) for the prediction of cesarean section for intrapartum fetal compromise (CS-IFC). Our aim was to evaluate whether the interval to delivery modifies the accuracy of CPR either as a single marker or combined with estimated fetal weight centile (EFWc), type of labor onset (TLO), and other clinical variables. METHODS: This was a multicenter retrospective study of 5,193 women with singleton pregnancies who underwent an ultrasound scan at 35+0-41+0 weeks and gave birth within 1 month of examination, at any of the participating hospitals in Spain, UK, and Italy. CS-IFC was diagnosed in case of an abnormal intrapartum fetal heart rate or intrapartum fetal scalp pH <7.20, requiring urgent cesarean section. The diagnostic ability of CPR in multiples of the median (CPR MoM) was evaluated at different intervals to delivery, alone and combined with EFWc, TLO, and other pregnancy data such as maternal age, maternal body mass index, parity, and fetal sex, for the prediction of CS-IFC by means of ROC curves and logistic regression analysis. RESULTS: The predictive ability of CPR MoM for CS-IFC worsened with the interval to delivery. In general, the best prediction was obtained prior to labor and by adding information related to EFWc and TLO (AUC 0.71 [95% CI: 0.64-0.79], 0.73 [95% CI: 0.66-0.80], and 0.75 [95% CI: 0.69-0.81]; p < 0.0001). Addition of more clinical data did not improve prediction. In addition, results did not vary when only cases with spontaneous onset of labor were studied. CONCLUSION: CPR MoM prediction of CS-IFC at the end of pregnancy worsens with the interval to delivery. Accordingly, it should be done in the short term and considering EFWc and TLO.


Assuntos
Cesárea , Artérias Umbilicais , Feminino , Humanos , Artéria Cerebral Média/diagnóstico por imagem , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez , Fluxo Pulsátil/fisiologia , Estudos Retrospectivos , Ultrassonografia Pré-Natal/métodos , Artérias Umbilicais/diagnóstico por imagem
2.
J Obstet Gynaecol ; 42(5): 1058-1064, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35014935

RESUMO

The objective was to evaluate the best predictors of adverse perinatal outcome (APO) in foetuses examined up to 34 weeks and delivered by spontaneous or induced labour. This was a retrospective study of 129 pregnancies that underwent an ultrasound Doppler examination at 23-34 weeks and entered into labour within 30 days. Cerebroplacental ratio (CPR) and mean uterine artery pulsatility index (mUtA PI) were converted into multiples of the median (MoM) and estimated foetal weight (EFW) into centiles to adjust for gestational age (GA). Sonographic and clinical parameters were evaluated using logistic regression analysis.The multivariable model for the prediction of APO presented a notable accuracy: Detection rate (DR) was 39.5% for a false positive rate (FPR) of 5% and 56.8% for a FPR of 10%, AUC 0.82, p < .0001. Significant predictors were GA, EFW centile, and CPR MoM, but not mUtA PI MoM. Moreover, the type of labour onset did not exert any influence on APO. In conclusion, up to 34 weeks, prediction of APO after spontaneous or induced labour may be done measuring CPR and EFW.IMPACT STATEMENTWhat is already known on this subject? Earlier in pregnancy, foetal growth restriction is caused by placental disease causing progressive hemodynamic changes. These changes have been exhaustively described. Conversely, information about the best predictors of adverse outcome is scarce.What do the results of this study add? The findings of this study show that prior to 34 weeks and up to 1 month before labour, labour outcome might be predicted by gestational age, foetal cerebroplacental ratio (CPR) and estimated foetal weight (EFW).What are the implications of these findings for clinical practice and/or further research? If CPR behaves as a good marker of outcome not only at the end of pregnancy but also earlier in gestation, it might be interrogated along with EFW in foetuses attempting vaginal delivery to determine the risk of adverse outcome.


Assuntos
Peso Fetal , Ultrassonografia Pré-Natal , Feminino , Idade Gestacional , Humanos , Artéria Cerebral Média/diagnóstico por imagem , Placenta/diagnóstico por imagem , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez , Fluxo Pulsátil , Estudos Retrospectivos , Ultrassonografia Doppler , Ultrassonografia Pré-Natal/métodos , Artérias Umbilicais/diagnóstico por imagem
3.
Fetal Diagn Ther ; 46(5): 341-352, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31013504

RESUMO

OBJECTIVE: The aim of this work was to compare the accuracy of the cerebroplacental ratio (CPR), Intergrowth 21st standards (IG21), customized growth (CG), and local population references (LPR) in the prediction of intrapartum fetal compromise (IFC). METHODS: This was a prospective study of 714 fetuses that underwent an ultrasound examination at 34-41 weeks and were delivered within a 2-week interval. The CPR was converted into multiples of the median and the estimated fetal weight (EFW) transformed into CG, IG21, and LPR centiles. IFC was defined as a composite of abnormal cardiotocogram, intrapartum pH requiring cesarean section, 5-min Apgar score, and admission to pediatric care units. The accuracies of the CPR and the EFW centiles for the prediction of IFC were evaluated alone and in combination with other gestational characteristics using univariate and multivariate analysis. RESULTS: Individually, the CPR was the parameter that best predicted the existence of IFC (AUC = 0.66). The multivariate analysis showed that the best prediction was again achieved with the CPR, alone or in combination with any of the EFW centiles (AUC = 0.74). No significant differences were seen between the different centile methods. CONCLUSION: The best prediction of IFC is obtained with CPR. Evaluation of CPR should be encouraged in term and late-preterm fetuses.


Assuntos
Retardo do Crescimento Fetal/diagnóstico por imagem , Artéria Cerebral Média/diagnóstico por imagem , Ultrassonografia Doppler/normas , Ultrassonografia Pré-Natal/normas , Artérias Umbilicais/diagnóstico por imagem , Adulto , Feminino , Desenvolvimento Fetal , Retardo do Crescimento Fetal/fisiopatologia , Idade Gestacional , Hemodinâmica , Humanos , Masculino , Artéria Cerebral Média/fisiopatologia , Valor Preditivo dos Testes , Gravidez , Estudos Prospectivos , Padrões de Referência , Reprodutibilidade dos Testes , Artérias Umbilicais/fisiopatologia
4.
Gynecol Endocrinol ; 33(9): 698-701, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28434274

RESUMO

The aim of our study was to investigate the effects of a combined treatment with alpha-lipoic acid (ALA) and myoinositol (MYO) on clinical, endocrine and metabolic features of women affected by polycystic ovary syndrome (PCOS). In this pilot cohort study, forty women with PCOS were enrolled and clinical, hormonal and metabolic parameters were evaluated before and after a six-months combined treatment with ALA and MYO daily. Studied patients experienced a significant increase in the number of cycles in six months (p < 0.01). The free androgen index (FAI), the mean androstenedione and DHEAS levels significantly decreased after treatment (p < 0.05). Mean SHBG levels significantly raised (p < 0.01). A significant improvement in mean Ferriman-Gallwey (F-G) score (p < 0.01) and a significant reduction of BMI (p < 0.01) were also observed. A significant reduction of AMH levels, ovarian volume and total antral follicular count were observed in our studied women (p< 0.05). No significant changes occurred in gluco-insulinaemic and lipid parameters after treatment. The combined treatment of ALA and MYO is able to restore the menstrual pattern and to improve the hormonal milieu of PCOS women, even in the absence of apparent changes in insulin metabolism.


Assuntos
Androstenodiona/sangue , Inositol/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Ácido Tióctico/uso terapêutico , Adolescente , Adulto , Índice de Massa Corporal , Sulfato de Desidroepiandrosterona/sangue , Quimioterapia Combinada , Feminino , Humanos , Inositol/administração & dosagem , Resistência à Insulina/fisiologia , Tamanho do Órgão/efeitos dos fármacos , Ovário/efeitos dos fármacos , Síndrome do Ovário Policístico/sangue , Globulina de Ligação a Hormônio Sexual/análise , Ácido Tióctico/administração & dosagem , Adulto Jovem
5.
Hum Reprod ; 30(1): 179-85, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25398971

RESUMO

STUDY QUESTION: Is the treatment with recombinant FSH (rFSH) plus recombinant LH (rLH) more effective than highly purified (HP)-hMG in terms of ongoing pregnancy rate (PR) in women ≥35 years of age undergoing intrauterine insemination (IUI) cycles? SUMMARY ANSWER: The ongoing PR was not significantly different in women treated with rFSH plus rLH or with HP-hMG. WHAT IS KNOWN ALREADY: Although previous studies have shown beneficial effects of the addition of LH activity to FSH, in terms of PR in patients aged over 34 years having ovulation induction, no studies have compared two different gonadotrophin preparations containing LH activity in women ≥35 years of age in IUI cycles. STUDY DESIGN, SIZE, DURATION: A single-centre RCT was performed between May 2012 and September 2013 with 579 women ≥35 years of age undergoing IUI cycles. The patients were randomly assigned to one of the two groups, rFSH in combination with rLH group or HP-hMG (Meropur) group, by giving them a code number from a computer generated randomization list, in order of enrolment. The randomization visit took place on the first day of ovarian stimulation. PARTICIPANTS/MATERIALS, SETTING, METHODS: Five hundred and seventy-nine patients with unexplained infertility or mild male factor undergoing IUI cycles were recruited in a university hospital setting. All women were enrolled in this study only for one cycle of treatment. Five hundred and seventy-nine cycles were included in the final analysis. Two hundred and ninety patients were treated with rFSH in combination with rLH and 289 patients were treated with HP-hMG. The ovarian stimulation cycle started on the third day of the menstrual cycle and the starting gonadotrophin doses used were 150 IU/day of rFSH plus 150 IU/day of rLH or 150 IU/day of HP-hMG. The drug dose was adjusted according to the individual follicular response. A single IUI per cycle was performed 34-36 h after hCG injection. MAIN RESULTS AND THE ROLE OF CHANCE: The main outcome measures were ongoing PR and number of interrupted cycles for high risk of ovarian hyperstimulation syndrome (OHSS). Ongoing pregnancy rates were 48/290 (17.3%) in the recombinant group versus 35/289 (12.2%) in the HP-hMG group [(odds ratio (OR) 1.50, 95% CI 0.94-2.41, P = 0.09]. The number of interrupted cycles for high risk of OHSS was 13/290 (4.5%) in the rFSH plus rLH group and 2/289 (0.7%) in the HP-hMG group (OR 6.73, 95% CI 1.51-30.12, P = 0.013). LIMITATIONS, REASONS FOR CAUTION: One of the limitations of this study was the early closure and the ongoing PR could be overestimated. Both patient and gynaecologist were informed of the assigned treatment. WIDER IMPLICATIONS OF THE FINDINGS: Our results demonstrated the lack of differences in terms of ongoing PR between recombinant product and HP-hMG, in women ≥35 years undergoing controlled ovarian stimulation for IUI cycles. HP-hMG was safer than recombinant gonadotrophin concerning the risk of OHSS. STUDY FUNDING/COMPETING INTERESTS: None. TRIAL REGISTRATION NUMBER: NCT01604044.


Assuntos
Fármacos para a Fertilidade Feminina/uso terapêutico , Hormônio Foliculoestimulante/uso terapêutico , Hormônio Luteinizante/uso terapêutico , Menotropinas/uso terapêutico , Indução da Ovulação/métodos , Adulto , Feminino , Fármacos para a Fertilidade Feminina/administração & dosagem , Hormônio Foliculoestimulante/administração & dosagem , Humanos , Inseminação Artificial , Hormônio Luteinizante/administração & dosagem , Menotropinas/administração & dosagem , Gravidez , Taxa de Gravidez
6.
Artigo em Inglês | MEDLINE | ID: mdl-23672405

RESUMO

Endocrine disruptors are well known to impair fertility. The aim of the present study was to investigate the effects of bisphenol A (BPA) and nonylphenol (p-NP) on human luteal function in vitro. In particular, in luteal cells isolated from 21 human corpora lutea progesterone, prostaglandin (PG) F2α, PGE2 and vascular endothelial growth factor (VEGF) release, as well as VEGF expression were evaluated. BPA and p-NP negatively affected both luteal steroidogenesis and luteotrophic/ luteolytic factors balance, without influencing VEGF mRNA expression. Actually, BPA and p-NP impaired human luteal cells function in vitro, underlining the already suggested correlation between phenols and reproductive failure.


Assuntos
Compostos Benzidrílicos/toxicidade , Disruptores Endócrinos/toxicidade , Poluentes Ambientais/toxicidade , Células Lúteas/efeitos dos fármacos , Células Lúteas/metabolismo , Fenóis/toxicidade , Adulto , Células Cultivadas , Dinoprosta/metabolismo , Dinoprostona/metabolismo , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Técnicas Imunoenzimáticas , Progesterona/metabolismo , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase em Tempo Real , Fator A de Crescimento do Endotélio Vascular/metabolismo
7.
Minerva Obstet Gynecol ; 75(2): 165-171, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34825791

RESUMO

BACKGROUND: Polycystic ovary syndrome (PCOS) is a low-grade inflammatory disease characterized by anovulation and hyperandrogenism, associated with insulin-resistance. The aim of our study was to investigate the effects of a treatment with alpha-lipoic acid on clinical, endocrine, and metabolic features of women affected by PCOS. METHODS: In this pilot cohort study, 60 women (30 hyperinsulinemic and 30 normoinsulinemic patients; age 15-34 years) were enrolled and clinical, hormonal, and metabolic parameters were evaluated before and after a six-months treatment with alpha-lipoic acid 800 mg/daily. Investigations were performed during the early follicular phase of the menstrual cycles (spontaneous or progestin-induced cycles): after fasting overnight for 10-12 h, blood samples were collected for hormonal and metabolic assays and oral glucose tolerance test and pelvic ultrasound were performed. Total Antioxidant Capacity was expressed as LAG time. RESULTS: The treatment was able to increase the number of menstrual cycles during the 6 months considered in all patients and to reduce BMI in the normoinsulinemic population. In hyperinsulinemic patients we observed a statistically significant reduction in AUC-I as well as an increase of total antioxidant capacity. CONCLUSIONS: The relevant results in restoring menstrual cyclicity in both groups, in addition to the antioxidant effect, confirm that hyperinsulinemia influences only the metabolic response to the treatment, without predict the ovarian function. Even if alpha-lipoic acid mechanisms of action is not clear and further studies are needed to confirm these results, it could be considered a valid therapeutic alternative to traditional drugs, without side effects as reported.


Assuntos
Síndrome do Ovário Policístico , Ácido Tióctico , Feminino , Humanos , Adolescente , Adulto Jovem , Adulto , Síndrome do Ovário Policístico/tratamento farmacológico , Síndrome do Ovário Policístico/complicações , Ácido Tióctico/uso terapêutico , Antioxidantes/uso terapêutico , Insulina/uso terapêutico , Projetos Piloto , Insulina Regular Humana/uso terapêutico
8.
J Migr Health ; 7: 100165, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36760495

RESUMO

Objective: Our aim was to evaluate the effect of emigration on fetal birth weight (BW) in a group of pregnant women coming from the Indian subcontinent. Methods: This was a retrospective study in a mixed population of pregnant women from the Indian subcontinent that either moved to Europe or stayed in their original countries. The influence of emigration along with several pregnancy characteristics: GA at delivery, fetal gender, maternal age, height, weight, body mass index (BMI) and parity on BW was evaluated by means of multivariable linear regression analysis. Results: According to European standards, babies born to Indo-Pakistan emigrants and babies born to women staying in the Indian subcontinent were similarly small (BW centile 30± 29 and 30.1 ± 28, p<0.68). Multivariable regression demonstrated that emigration by itself did not exert a direct influence on BW (p  = 0.27), being BMI and gestational age at delivery the true determinants of BW (p<0.0001). Conclusions: Maternal BMI is the most relevant parameter affecting fetal growth regardless of the place of residence.

9.
J Matern Fetal Neonatal Med ; 35(8): 1419-1425, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32372671

RESUMO

OBJECTIVE: The aim of the study was to investigate the influence of ethnicity and cerebroplacental ratio (CPR) on the birth weight (BW) of first generation Indo-Pakistan immigrants' newborns. METHODS: This was a retrospective study in a mixed population of 620 term Caucasian and Indo-Pakistan pregnancies, evaluated in two reference hospitals of Spain and Italy. All fetuses underwent a scan and Doppler examination within two weeks of delivery. The influence of fetal gender, ethnicity, GA at delivery, CPR, maternal age, height, weight and parity on BW was evaluated by multivariable regression analysis. RESULTS: Newborns of first generation Indo-Pakistan immigrants were smaller than local Caucasian newborns (mean BW mean= 3048 ± 435 g versus 3269 ± 437 g, p < .001). Multivariable regression analysis demonstrated that all studied parameters, but maternal age and ethnicity, were significantly associated with BW. The most important were GA at delivery (partial R2 = 0.175, p < .001), CPR (partial R2 = 0.032, p < .001), and fetal gender (partial R2 = 0,029, p < .001). CONCLUSIONS: The propensity to a lower BW, explained by placental dysfunction but not by maternal ethnicity is transmitted to newborns of first generation immigrants. Whatever are the factors implied they persist in the new residential setting.


Assuntos
Emigrantes e Imigrantes , Etnicidade , Peso ao Nascer , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Artéria Cerebral Média/diagnóstico por imagem , Parto , Placenta , Gravidez , Estudos Retrospectivos , Ultrassonografia Pré-Natal , Artérias Umbilicais/diagnóstico por imagem
10.
Endocrine ; 77(1): 168-176, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35426587

RESUMO

PURPOSE: Patients with functional hypothalamic amenorrhea (FHA) could commonly have bone damage, often preceded by metabolic alterations due to a relative energy deficit state. To date, there are no markers capable of predicting osteopenia before it is manifested on DXA. Irisin is a myokine that promotes the differentiation of osteoblastic cells and appears to be inversely correlated with the incidence of bone fragility and fractures in postmenopausal women. The aim of this study was to measure irisin levels in FHA patients and to correlate it with bone density parameters. METHODS: Thirty-two patients with FHA and 19 matched controls underwent the same clinical and laboratory evaluation. RESULTS: Irisin and body mass index (BMI) were significantly lower in the case group than in healthy controls (2.03 ± 0.12 vs. 2.42 ± 0.09 p < 0.05 and 19.43 ± 2.26 vs. 22.72 ± 0.67 p < 0.05, respectively). Additionally, total body mass density (BMD g/cm2) was significantly lower in the case group than in the healthy controls (1.09 ± 0.08 vs. 1.14 ± 0.05, p < 0.05), without signs of osteopenia. CONCLUSIONS: The FHA group showed lower irisin levels associated with significantly reduced BMD parameters that did not reach the severity of osteopenia. Therefore, we could speculate that irisin could predict DXA results in assessing modifications of body composition parameters. Future research is warranted to study these parameters in a larger population to confirm our results, so that irisin could be used as a predictor and screening method for bone deprivation. Furthermore, irisin is strictly related to energy metabolism and could be an indirect marker of nutritional status in FHA patients, identifying earlier states of energy deficit.


Assuntos
Amenorreia , Doenças Ósseas Metabólicas , Fibronectinas , Amenorreia/complicações , Densidade Óssea , Doenças Ósseas Metabólicas/etiologia , Feminino , Fibronectinas/sangue , Humanos , Projetos Piloto
11.
J Matern Fetal Neonatal Med ; 33(16): 2775-2784, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30563383

RESUMO

Objectives: Small-for-gestational-age fetuses (SGA) are at high risk of intrapartum fetal compromise requiring operative delivery. In a recent study, we developed a model using a combination of three antenatal (gestational age at delivery, parity, cerebroplacental ratio) and three intrapartum (epidural use, labor induction and augmentation using oxytocin) variables for the prediction of operative delivery due to presumed fetal compromise in SGA fetuses - the Individual RIsk aSsessment (IRIS) prediction model. The aim of this study was to test the predictive accuracy of the IRIS prediction model in an external cohort of singleton pregnancies complicated by SGA.Methods: This was an external validation study using a cohort of pregnancies from two tertiary referral centers in Spain and England. The inclusion criteria were singleton pregnancies diagnosed with an SGA fetus, defined as estimated fetal weight (EFW) below the 10th centile for gestational age at 36 weeks or beyond, which had fetal Doppler assessment and available data on their intrapartum care and pregnancy outcomes. The main outcome in this study was the operative delivery for presumed fetal compromise. External validation was performed using the coefficients obtained in the original development cohort. The predictive accuracies of models were investigated with receiver operating characteristics (ROC) curves. The Hosmer-Lemeshow test was used to test the goodness-of-fit of models and calibration plots were also obtained for visual assessment. A mobile application using the combined model algorithm was developed to facilitate clinical use.Results: Four hundred twelve singleton pregnancies with an antenatal diagnosis of SGA were included in the study. The operative delivery rate was 22.8% (n = 94). The group which required operative delivery for presumed fetal compromise had significantly fewer multiparous women (19.1 versus 47.8%, p < .001 in the total study population; 19.0 versus 43.5 and 19.2 versus 49.6%, UK and Spain cohort, respectively), lower cerebroplacental ratio (CPR) multiples of median (MoM) (median: 0.77 versus 0.92, p < .001 in the total study population; 0.77 versus 0.92 and 0.77 versus 0.92, UK and Spain cohort, respectively), more inductions of labor (74.5 versus 60.1%, p = .010 in the total study population; 85.7 versus 77.2 and 71.2% and 53.1, UK and Spain cohort, respectively) and more use of oxytocin augmentation (57.4 versus 39.3%, p = .002 in the total study population; 19.0 versus 12.0 and 68.5 and 50.4%, UK and Spain cohort, respectively) compared to those who did not require operative delivery due to presumed fetal compromise. When the original antenatal model was applied to the present cohort, we observed moderate predictive accuracy (AUC: 0.70, 95% CI: 0.64-0.76), and no signs of poor fit (p = .464). The original combined model, when applied to the external cohort, had moderate predictive accuracy (AUC: 0.72, 95% CI: 0.67-0.77) and also no signs of poor fit (p = .268) without the need for refitting. A statistically significant increase in the predictive accuracy was not achieved via refitting of the combined model (AUC 0.76 versus 0.72, p = .060).Conclusions: Using our recently published model, the predictive accuracy for fetal compromise requiring operative delivery in term fetuses thought to be SGA was modest and showed no signs of poor fit in an external cohort. The IRIS tool for mobile devices has been developed to facilitate wide clinical use of this prediction model.Brief rationaleObjective: To determine the external validity of an intrapartum risk prediction model for suspected small-for-gestational age fetuses.What is already known: Small-for-gestational age fetuses are at increased risk of intrapartum compromise. Fetal weight alone is a poor marker for adverse outcomes and a comprehensive prediction model has been previously suggested.What this study adds: Multivariable prediction model showed good accuracy and calibration in this external validation study. The significance of some variables was different between the original and external validation cohort and there was a small margin for improvement with model refitting. A mobile application has been developed to facilitate clinical use.


Assuntos
Sofrimento Fetal/diagnóstico , Recém-Nascido Pequeno para a Idade Gestacional , Medição de Risco/métodos , Adulto , Algoritmos , Estudos de Casos e Controles , Cesárea/estatística & dados numéricos , Extração Obstétrica/estatística & dados numéricos , Feminino , Humanos , Recém-Nascido , Artéria Cerebral Média/diagnóstico por imagem , Gravidez , Fluxo Pulsátil , Curva ROC , Ultrassonografia Doppler , Ultrassonografia Pré-Natal , Artérias Umbilicais/diagnóstico por imagem
12.
J Matern Fetal Neonatal Med ; 33(8): 1282-1287, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30200793

RESUMO

Objective: The aim of this study was to investigate in the fetus the relationship between unexpected high middle cerebral artery peak systolic velocity (middle cerebral artery (MCA) peak systolic velocity (PSV)) values and hemoglobin (Hgb) levels in normal pregnancies without conditions leading to fetal anemia.Material and methods: This was a prospective study of 922 singleton low-risk pregnant women attending the maternity of La Fe Hospital between 35 and 41 weeks. Multiple pregnancies and pregnancies with growth restriction, smallness, macrosomia or conditions leading to fetal anemia were excluded. During each examination, a biometry and a Doppler examination of the umbilical artery pulsatility index (umbilical artery (UA) pulsatility index (PI)), MCA PI and MCA PSV were performed. MCA PSV was converted into multiples of median (MoM), and birth weight (BW) into centiles adjusting for gender. All pregnancies delivered in a 2-week interval since examination. In order to explain Hgb levels at birth, a correlation between MCA PSV MoM and Hgb was performed and Hgb levels of fetuses with normal MCA PSV and abnormal MCA PSV were compared, using 1.3 MoM as cut-off for mild anemia. Finally, a multivariate linear regression analysis was performed including MCA PSV MoM and several Doppler and clinical parameters.Results: The univariate analysis showed no correlation between the MCA PSV MoM and the umbilical artery Hgb (r2 = 0.026, p = .1237) while a weak correlation was found with the umbilical vein Hgb (r2 = 0.0053, p = .027). Also, fetuses with values of MCA PSV MoM <1.3 MoM did not differ in terms of artery and vein Hgb with those presenting values >1.3 MoM (p = .99 and p = .61, respectively). Finally, both prediction models explaining arterial and venous Hgb presented very weak predictive accuracies (R Squared: 0.0965 and R Squared: 0.106) indicating a low possibility to diagnose fetal anemia in otherwise normal fetuses based on clinical and sonographic data.Conclusion: In normal pregnancies that are not suffering from conditions leading to fetal anemia, unexpected high MCA PSV values do not necessarily reflect the presence of this condition. Active management in this circumstance might result in unjustified higher rates of labor induction and operative delivery.


Assuntos
Anemia/embriologia , Velocidade do Fluxo Sanguíneo/fisiologia , Doenças Fetais/diagnóstico , Artéria Cerebral Média/fisiologia , Adulto , Anemia/diagnóstico , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Artéria Cerebral Média/diagnóstico por imagem , Gravidez , Estudos Prospectivos , Ultrassonografia Doppler , Ultrassonografia Pré-Natal , Artérias Umbilicais/diagnóstico por imagem
13.
Reprod Sci ; 25(2): 269-275, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28558523

RESUMO

The objective of the study was to investigate the effects of 6 months of melatonin administration on clinical, endocrine, and metabolic features of women affected by polycystic ovary syndrome (PCOS). This is a prospective cohort study including 40 normal-weight women with PCOS between January and September 2016, enrolled in an academic research environment. Ultrasonographic pelvic examinations, hirsutism score evaluation, hormonal profile assays, oral glucose tolerance test, and lipid profile at baseline and after 6 months of melatonin administration were performed. Melatonin treatment significantly decreased androgens levels (free androgen index: P < .05; testosterone: P < .01; 17 hydroxyprogesterone: P < .01). Follicle-stimulating hormone levels significantly raised ( P < .01), and anti-Mullerian hormone serum levels significantly dropped after 6 months of melatonin treatment ( P < .01). No significant changes occurred in glucoinsulinemic and lipid parameters after treatment except a significant decrease of low-density lipoprotein cholesterol. Almost 95% of participants experienced an amelioration of menstrual cycles. Until now, only few data have been published about the role of melatonin in women with PCOS. This is the first study focused on the effects of exogenous oral melatonin administration on the clinical, endocrine, and metabolic characteristics of patients with PCOS. After 6 months of treatment, melatonin seems to improve menstrual irregularities and biochemical hyperandrogenism in women with PCOS through a direct, insulin-independent effect on the ovary. Based on our results, melatonin could be considered a potential future therapeutic agent for women affected by PCOS.


Assuntos
Hirsutismo/tratamento farmacológico , Hiperandrogenismo/tratamento farmacológico , Melatonina/farmacologia , Ciclo Menstrual/efeitos dos fármacos , Síndrome do Ovário Policístico/tratamento farmacológico , 17-alfa-Hidroxiprogesterona/sangue , Adulto , Glicemia , Feminino , Teste de Tolerância a Glucose , Hirsutismo/sangue , Hirsutismo/diagnóstico por imagem , Humanos , Hiperandrogenismo/sangue , Hiperandrogenismo/diagnóstico por imagem , Lipídeos/sangue , Melatonina/uso terapêutico , Ciclo Menstrual/sangue , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/diagnóstico por imagem , Estudos Prospectivos , Testosterona/sangue , Ultrassonografia , Adulto Jovem
14.
Int J Gynaecol Obstet ; 133(1): 64-8, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26873125

RESUMO

OBJECTIVE: To evaluate anti-Müllerian hormone (AMH) concentrations and antral follicle counts (AFCs) in the prediction of pregnancy outcomes after controlled ovarian stimulation among women undergoing intrauterine insemination. METHODS: A retrospective study included women with unexplained infertility aged 41years or younger who attended a fertility clinic in Italy between December 2009 and May 2014. Ovarian stimulation was achieved with recombinant follicle-stimulating hormone or highly purified human menopausal gonadotropin. Receiver operating characteristic curves were generated to predict ongoing pregnancy. The primary outcome was the association between AMH/AFC and ongoing pregnancy, and was assessed by logistic regression. RESULTS: Overall, 276 women were included, of whom 43 (15.6%) achieved ongoing pregnancy. Multivariate analysis showed that women with a serum day-3 concentration of AMH higher than 2.3ng/mL were more likely to have ongoing pregnancy than were those with a concentration lower than 2.3ng/mL (odds ratio 5.84, 95% confidence interval 2.38-14.31; P<0.001). No associations were recorded for AFCs. CONCLUSION: AMH should be used to predict the pregnancy outcome of intrauterine insemination.


Assuntos
Hormônio Antimülleriano/sangue , Inseminação Artificial/métodos , Indução da Ovulação/métodos , Resultado da Gravidez , Adulto , Feminino , Hormônio Foliculoestimulante/administração & dosagem , Humanos , Infertilidade Feminina/terapia , Itália , Modelos Logísticos , Menotropinas/administração & dosagem , Análise Multivariada , Folículo Ovariano/metabolismo , Gravidez , Estudos Retrospectivos
15.
Eur J Obstet Gynecol Reprod Biol ; 186: 22-5, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25597884

RESUMO

OBJECTIVE: Tubal patency in women with endometriosis has traditionally been evaluated by laparoscopy. The aim of this study was to investigate the accuracy of hysterosalpingo-contrast-sonography (HyCoSy) in the assessment of tubal patency in these women. STUDY DESIGN: A retrospective study was conducted at Physiopathology of Human Reproduction Unit. Infertile women who underwent HyCoSy and then a laparoscopy (dye test) within 6 months from the HyCoSy were included. Tubal patency was assessed by HyCoSy and the findings were compared with the results of laparoscopy, which was considered the gold standard for assessment of tubal patency. Sensitivity, specificity, positive and negative predictive values (PPV, NPV) and positive and negative likelihood ratios (Lh+, Lh-) were calculated including the 95% confidence interval (CI). RESULTS: A total of 1452 women underwent HyCoSy and 126 of them received a laparoscopy within 6 months from the HyCoSy. Of the 126 women, 42 (33.3%) had a diagnosis of pelvic endometriosis and 84 (66.7%) had no endometriosis. In the endometriosis population, HyCoSy showed a sensitivity, specificity, PPV, NPV, Lh+ and Lh- of 85% (95% CI 62-96), 93% (95% CI 82-97), 81% (95% CI 58-94), 94% (95% CI 84-98), 12.6 (95% CI 4.8-33) and 0.15 (95% CI 0.05-0.4) respectively. In the non-endometriosis group, HyCoSy showed a sensitivity, specificity, PPV, NPV, LR+ and LR- of 85% (95% CI 65-95), 93% (95% CI 87-96), 71% (95% CI 53-85), 97% (95% CI 92-99), 13.2 (95% CI 6.9-25) and 0.15 (95% CI 0.06-0.3) respectively. The diagnostic accuracy of HyCoSy was 91% in the endometriosis group and 92% in the non-endometriosis patients. CONCLUSIONS: HyCoSy showed high accuracy in evaluating tubal patency in infertile non-endometriosis women and in those affected by endometriosis.


Assuntos
Endometriose/diagnóstico por imagem , Doenças das Tubas Uterinas/diagnóstico por imagem , Testes de Obstrução das Tubas Uterinas/métodos , Tubas Uterinas/diagnóstico por imagem , Doenças Ovarianas/diagnóstico por imagem , Útero/diagnóstico por imagem , Adulto , Corantes , Meios de Contraste , Endometriose/complicações , Doenças das Tubas Uterinas/etiologia , Feminino , Humanos , Infertilidade Feminina/diagnóstico por imagem , Infertilidade Feminina/etiologia , Laparoscopia , Doenças Ovarianas/complicações , Valor Preditivo dos Testes , Estudos Retrospectivos , Ultrassonografia
16.
Eur J Obstet Gynecol Reprod Biol ; 191: 101-5, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26115053

RESUMO

OBJECTIVE: Women affected by PCOS and psoriasis are more likely to have insulin-resistance, hyperinsulinemia, reduced HDL cholesterol levels and a more severe degree of skin disease than those with psoriasis alone. The mechanism underlying this association between PCOS and psoriasis is currently unknown. The aim of the present study was to evaluate the features of psoriasis and the psoriasis severity scores in the different PCOS phenotypes and in age and body mass index (BMI)-matched psoriatic control patients. STUDY DESIGN: A cross-sectional study was performed on 150 psoriatic patients: 94 PCOS and 56 age- and BMI-matched controls. PCOS patients were diagnosed and divided into four phenotypes according to Rotterdam criteria: A - patients with complete phenotype with hyperandrogenism (H) plus oligoamenorrhea (O) plus polycystic ovary (PCO) on ultrasound examination; B - patients with H plus O (without PCO); C - patients with H plus PCO (ovulatory phenotype); D - patients with O plus PCO (without H). The patient's Psoriasis Area and Severity Index (PASI) as well as the Physician's Global Assessment (PGA) were calculated. A PASI score ≥10 was correlated with common indicator of severe disease. A PGA ≥4 was considered as a condition of moderate to severe disease. RESULTS: Among the four phenotypes investigated, the group with complete phenotype (H plus O plus PCO) had a higher prevalence of patients with patient's PASI ≥10 compared to controls (Odds Ratio (OR) 4.71, 95% confidence intervals (CI) 1.59-13.95). The group with O plus PCO had a higher prevalence of patients with PGA ≥4 compared to controls (OR 26.79, 95% CI 3.40-211.02) while the ovulatory group had a lower prevalence of patients with PGA ≥4 (OR 0.06, 95% CI 0.01-0.51). CONCLUSIONS: The ovulatory phenotype displays a milder psoriasis form than other phenotypes while the phenotypes with oligoamenorrhea presented higher severity scores of disease than other phenotypes and control group.


Assuntos
Anovulação/etiologia , Síndrome do Ovário Policístico/fisiopatologia , Psoríase/etiologia , Adulto , Fatores Etários , Índice de Massa Corporal , Estudos de Coortes , Estudos Transversais , Feminino , Hospitais Urbanos , Humanos , Hiperandrogenismo/etiologia , Oligomenorreia/etiologia , Ambulatório Hospitalar , Sobrepeso/complicações , Síndrome do Ovário Policístico/complicações , Prevalência , Psoríase/complicações , Psoríase/epidemiologia , Psoríase/fisiopatologia , Estudos Retrospectivos , Cidade de Roma/epidemiologia , Índice de Gravidade de Doença , Adulto Jovem
17.
Fertil Steril ; 102(3): 831-7, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25016925

RESUMO

OBJECTIVE: To evaluate the influence of phthalates on human luteal cell function. DESIGN: Laboratory study. SETTING: University hospital. PATIENT(S): Twenty-three normally menstruating patients in the midluteal phase. INTERVENTION(S): Human luteal cells isolated from corpora lutea for primary cultures. MAIN OUTCOME MEASURE(S): Progesterone (P4) and prostaglandin release assayed by enzyme immunoassay, vascular endothelial growth factor (VEGF) secretion by enzyme-linked immunosorbent assay (ELISA), and VEGF mRNA expression by real-time polymerase chain reaction. RESULT(S): We investigated the effect of di(2-ethylhexyl)phthalate (DEHP), di-n-butyl phthalate (DBP), and butyl benzyl phthalate (BBP) on basal and hCG-induced progesterone (P4) release, as well as DEHP effect on the balance between prostaglandin (PG) E2, vascular endothelial growth factor (VEGF)-luteotrophic factors, and the luteolitic PGF2α in isolated human steroidogenc cells. Phthalates influence on VEGF expression has been also evaluated. DEHP, DBP, and BBP were able to reduce both basal and hCG-stimulated P4 as well as PGE2 release. PGF2α release was reduced after DEHP incubation. VEGF protein release was decreased by the incubation with the tested phthalates. VEGF mRNA expression was not affected by DEHP, DBP, and BBP. As expected, both hCG and cobalt chloride were able to induce P4 release and VEGF release and mRNA expression in human luteal cells respectively. CONCLUSION(S): The results show the ability of phthalates to affect luteal steroidogenesis as well as the balance between luteotrophic and luteolytic factors suggesting an interference of phthalates in human luteal function. These data may contribute to clarify the classically known impaired reproductive health observed after phthalates exposure.


Assuntos
Disruptores Endócrinos/toxicidade , Infertilidade Feminina/induzido quimicamente , Células Lúteas/efeitos dos fármacos , Ácidos Ftálicos/toxicidade , Reprodução/efeitos dos fármacos , Adulto , Células Cultivadas , Dibutilftalato/toxicidade , Dietilexilftalato/toxicidade , Dinoprosta/metabolismo , Feminino , Humanos , Células Lúteas/metabolismo , Progesterona/metabolismo , Testes de Toxicidade
18.
Fertil Steril ; 102(1): 250-256.e3, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24825420

RESUMO

OBJECTIVE: To develop and validate a specific simple measure of insulin sensitivity using oral glucose tolerance test (OGTT) values for lean polycystic ovary syndrome (PCOS) women. DESIGN: Retrospective study. SETTING: Gynecologic Outpatient Clinic of University Hospital, affiliated with Unit of Gynecologic Endocrinology. PATIENT(S): Totals of 201 lean and 198 overweight/obese (ov-ob) nondiabetic PCOS patients were retrospectively selected. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): All patients underwent OGTT, euglycemic-hyperinsulinemic clamp, and androgenic and biochemical assays. The predictive performance of each insulin resistance (IR) index was analyzed with the use of receiver operating characteristic (ROC) curves. RESULT(S): Higher correlation coefficients with clamp studies were obtained with the Belfiore Area (RS=0.579) and the homeostasis-model assessment (HOMA)-M120 (RS=-0.576) in lean PCOS patients and with the Sib (RS=0.697) in ov-ob PCOS patients. The best predictive index of IR in lean PCOS was a HOMA-M120 value of ≥12.8 or more (area under the ROC curve [AUC] 92.4%). In the ov-ob PCOS population, the best predictive performance was obtained by a Sib of ≤10.2 or less (AUC 85.7%). CONCLUSION(S): IR should be assessed in all PCOS women, both lean and ov-ob subjects. The HOMA-M120 resulted as a very simple tool, validated specifically for the lean PCOS woman whose cardiometabolic impairment is more frequently misunderstood.


Assuntos
Teste de Tolerância a Glucose , Resistência à Insulina , Síndrome do Ovário Policístico/fisiopatologia , Magreza/fisiopatologia , Adolescente , Adulto , Área Sob a Curva , Biomarcadores/sangue , Glicemia/metabolismo , Feminino , Técnica Clamp de Glucose , Humanos , Insulina/sangue , Obesidade/sangue , Obesidade/diagnóstico , Obesidade/fisiopatologia , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/diagnóstico , Valor Preditivo dos Testes , Curva ROC , Reprodutibilidade dos Testes , Estudos Retrospectivos , Magreza/sangue , Magreza/diagnóstico , Adulto Jovem
19.
Fertil Steril ; 99(3): 936-42, 2013 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-23158933

RESUMO

OBJECTIVE: To define the prevalence and the features of polycystic ovary syndrome (PCOS) in patients with psoriasis. To our knowledge, the association between PCOS and psoriasis has not been explored in previous studies. Psoriasis is linked with metabolic syndrome, insulin resistance, and non-alcoholic fatty liver disease, which are features often associated with PCOS. DESIGN: A cross-sectional analysis was performed between January 2010 and April 2012. SETTING: Unit of human reproductive pathophysiology, Catholic University Hospital. PATIENT(S): We prospectively analyzed 51 patients with psoriasis and 102 healthy age- and body mass index (BMI)-matched controls. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): The prevalence and characteristics of PCOS women of reproductive age with chronic plaque psoriasis. RESULT(S): The prevalence of PCOS was greater in patients with psoriasis than in matched control subjects (47.05% and 11.76%, respectively; odds ratio, 6.66; 95% confidence interval 2.95-15.07). Among the women with psoriasis, the prevalence of Psoriasis Area and Severity Index ≥10 was higher in patients with PCOS than in subjects without PCOS (odds ratio, 3.5; 95% confidence interval 1.04-11.72). CONCLUSION(S): The prevalence of PCOS in women with psoriasis is remarkably greater than in age- and BMI-matched control women.


Assuntos
Síndrome do Ovário Policístico/epidemiologia , Síndrome do Ovário Policístico/patologia , Psoríase/epidemiologia , Psoríase/patologia , Adulto , Estudos Transversais , Feminino , Homeostase , Humanos , Hipertensão/epidemiologia , Lipídeos/sangue , Razão de Chances , Prevalência , Estudos Prospectivos , Fatores de Risco , Relação Cintura-Quadril
20.
Reprod Sci ; 20(12): 1508-17, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23690338

RESUMO

OBJECTIVE: To evaluate the long-term effects of drospirenone (DRSP)/ethinylestradiol (EE) alone, metformin alone, and DRSP/EE-metformin on CD4(+)CD28(null) T lymphocytes frequency, a cardiovascular risk marker, in patients with hyperinsulinemic polycystic ovary syndrome (PCOS). DESIGN: Randomized clinical trial. INTERVENTIONS: Ninety three patients with hyperinsulinemic PCOS were age matched and body mass index matched and randomized to receive a 6 months daily treatment with DRSP (3 mg)/EE (0.03 mg), or metformin (1500 mg), or DRSP/EE combined with metformin. MAIN OUTCOME MEASURES: CD4(+)CD28(null) T-cell frequencies. RESULTS: The DRSP/EE and metformin groups did not show any significant change in the CD4(+)CD28(null) frequency compared to the baseline. Interestingly, a statistically significant decrease in CD4(+)CD28(null) frequency occurred after 6 months of DRSP/EE-metformin (median 3-1.5; P < .01). Of note, this statistically significant association was confirmed after adjusting for baseline values in DRSP/EE-metformin group by analysis of covariance (P < .05). CONCLUSIONS: In women with hyperinsulinemic PCOS, combined therapy with DRSP/EE and metformin may reduce cardiovascular risk.


Assuntos
Androstenos/uso terapêutico , Antígenos CD28/deficiência , Linfócitos T CD4-Positivos/efeitos dos fármacos , Etinilestradiol/uso terapêutico , Hiperinsulinismo/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Substâncias para o Controle da Reprodução/uso terapêutico , Adolescente , Adulto , Análise de Variância , Contagem de Linfócito CD4 , Linfócitos T CD4-Positivos/imunologia , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , Distribuição de Qui-Quadrado , Feminino , Humanos , Hiperinsulinismo/sangue , Hiperinsulinismo/complicações , Hiperinsulinismo/diagnóstico , Hiperinsulinismo/imunologia , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/diagnóstico , Síndrome do Ovário Policístico/imunologia , Fatores de Risco , Cidade de Roma , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
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