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Biomedical subjects

F Goffinet

Publications and source records attributed to F Goffinet.

At least 73 records · Page 4Linked to original sources

[Newborn shoulder width: physiological variations and predictive value for shoulder dystocia].

OBJECTIVES: The purpose of this study was to determine maternal and infant characteristics affecting newborn shoulder width (NSW) and to evaluate the predictive value of NSW measurement in cases of shoulder dystocia. DESIGN: NSW was systematically measured at birth during a period of 18 months. SETTING: Department of Obstetrics and Gynaecology of Saint-Antoine University Hospital (Paris-France). POPULATION: A total of 2.222 NSW measurements were performed and 22 cases of true shoulder dystocia occurred during the study period. METHODS: NSW measurements were reviewed and correlated with maternal age, parity, nonpregnant weight, weight gain during pregnancy, height, race, fasting glucose and one hour glucose levels, gestational age, birthweight and sex of the neonate. A Receiver Operating Characteristics (ROC) curve was constructed to evaluate NSW as a test for predicting shoulder dystocia. RESULTS: The mean NSW was 122.06 mm +/-0.50 SD. Stepwise multiple regression showed that NSW was significantly associated with birthweight (p<0.001), parity (p = 0.04), and nonpregnant weight (p = 0.04). We estimated that the best cut-off for shoulder dystocia prediction was a NSW measurement with a low false positive rate (<10%) in association with a high sensitivity rate. Therefore, NSW measurement above or equal to 140 mm was selected. This measurement should have a low sensitivity of 27.27%, a specificity of 91.82%, a positive predictive value of 4.02%, and a predictive negative value of 99.01% for shoulder dystocia prediction. Nevertheless, birthweight above or equal to 4000 g should retrospectively have a better predictive value for shoulder dystocia. CONCLUSIONS: NSW measurement, which is strongly correlated with birth weight, still remains a poor predictor for shoulder dystocia, even when this evaluation is correct antenatally.

Anthropometry↗

[Repetition of corticoid treatment for fetal lung maturation: clinical and experimental scientific data].

Before 34 weeks, one course of antenatal corticosteroids significantly decreases neonatal mortality and morbidity. Courses are repeated every week, because of their alleged loss of efficiency after 7 days, although the relative benefits and risks of repeated courses are poorly known. Data from the literature suggest that improvement in lung function after repeated courses depends on the reduction of the treatment/birth interval and not on the rise in the cumulative dose. These benefits must be balanced against the risk of decreased birth weight induced by repeated courses. Because of their effect on fetal growth, weekly courses of corticosteroids should no longer be given systematically. In clinical practice, pregnancies at high risk of preterm delivery must be reassessed every week before prescribing a new course. Both better understanding of treatment duration of corticosteroids and randomized controlled trials comparing one and multiple courses are needed to improve antenatal management of neonatal respiratory stress syndrome.

Adrenal Cortex Hormones↗

Thickness of the lower uterine segment: its influence in the management of patients with previous cesarean sections.

OBJECTIVE: To determine how ultrasound measurement of the lower uterine segment affects the decision about delivery for patients with previous cesarean sections (CS) and what are the consequences on cesarean section rates and uterine rupture or dehiscence. DESIGN: Prospective open study. PATIENTS: 198 patients: all women with a previous CS who gave birth in our department during 1995 and 1996 to an infant with a gestational age of at least 36 weeks and who underwent ultrasound measurement of their lower uterine segment (95-96 study group), compared with a similar population from 1989 to 1994 whose measurements were not provided to the treating obstetrician. RESULTS: Among the patients with one previous CS, the vaginal delivery rate did not differ significantly during the two periods (70.3% for the 89-94 study period vs. 67.9% for the 95-96 study period, P=0.53), but the 95-96 study group experienced a significant increase in the rate of elective CS, compensated by a reduction in the rate of emergency CS (6.3% and 23.4%, respectively, for the 89-94 study period vs. 11.9% and 20.1% for the 95-96 study period, P=0.01). There was a very significant increase in the rate of vaginal delivery for the 95-96 study period among patients with two previous CS (26.7% vs. 8.0% for the 89-95 study period, P=0.01). The lower uterine segment was significantly thicker among women with a trial of labor than among those with an elective CS (4.5+/-1.4 mm compared with 3.8 +/- 1.5 mm; P=0.006); and the trial of labor group contained significantly fewer women with a lower uterine segment measurement less than 3.5 mm than did the elective CS group (24.0% compared with 56.6%; P<0.001). Two patients (0.8%) were found to have a defect of the uterine scar, a rate significantly lower than that observed in the early group (3.9%, P=0.03). CONCLUSIONS: Ultrasound measurement of the lower uterine segment can increase the safe use of trial of labor, because it provides an additional element for assessing the risk of uterine rupture.

Adult↗

Pregnancy rates after in-vitro fertilization in cases of tubal infertility with and without hydrosalpinx: a meta-analysis of published comparative studies.

This meta-analysis was intended to evaluate differences in pregnancy rates after in-vitro fertilization (IVF) in tubal fertility with and without hydrosalpinx. It examined nine published retrospective comparative series and five series published as abstracts for which additional information was obtained. In all, these studies involved 5592 patients (1004 with hydrosalpinx and 4588 with tubal infertility without hydrosalpinx). The main outcome measures were rates of pregnancy, implantation, live delivery, and early pregnancy loss. Pregnancy rates were significantly lower in the presence of hydrosalpinx: 31.2% for the tubal sterility group without hydrosalpinx and 19.7% for the group with hydrosalpinx (odds ratio: 0.64; 95% confidence interval: 0.56, 0.74). Similarly, the implantation rate and the delivery rate per transfer in the hydrosalpinx group were only slightly more than half those of the non-hydrosalpinx group (implantation: 8.5 and 13.7%, respectively; delivery: 13.4 and 23.4%). The incidence of early pregnancy loss was also higher in the hydrosalpinx group (43.7%) than in the control group (31.1%). This meta-analysis makes it clear that hydrosalpinx present during IVF-embryo transfer has negative consequences on the rates of pregnancy, implantation, live delivery, and early pregnancy loss. It would be premature, nonetheless, to conclude that routine salpingectomy should be performed on all patients with hydrosalpinx.

Body Fluids↗

Newborn shoulder width: a prospective study of 2222 consecutive measurements.

OBJECTIVES: To relate maternal and infant characteristics to newborn shoulder width and to evaluate the predictive value of newborn shoulder width measurement in cases of shoulder dystocia. DESIGN: Newborn shoulder width was systematically measured at birth during a period of 18 months. SETTING: Department of Obstetrics and Gynaecology of Saint-Antoine University Hospital, Paris, France. POPULATION: A total of 2222 newborn shoulder width measurements were performed and 22 cases of true shoulder dystocia occurred during the study period. METHODS: Newborn shoulder width measurements were reviewed and correlated with maternal age, parity, nonpregnant weight, weight gain during pregnancy, height, race, fasting glucose and one hour glucose levels, gestational age, birthweight and sex of the neonate. A receiver-operating characteristics curve was constructed to evaluate newborn shoulder width as a test for predicting shoulder dystocia. RESULTS: The mean newborn shoulder width was 122.06 mm (10.50 SD). Stepwise multiple regression showed that newborn shoulder width was significantly associated with birthweight (P < 0.001), parity (P = 0.04), and nonpregnant weight (P = 0.04). We estimated that the best cut off for shoulder dystocia prediction was a newborn shoulder width measurement with a low false positive rate (< 10%) in association with a high sensitivity rate. Therefore, newborn shoulder width measurement > or = 140 mm was selected. This measurement should have a low sensitivity of 27.27%, a specificity of 91.82%, a positive predictive value of 4.02%, and a negative predictive value of 99.01% for shoulder dystocia prediction. Nevertheless, birthweight > or = 4000 g should have a better predictive value retrospectively for shoulder dystocia. CONCLUSIONS: Newborn shoulder width measurement, which is strongly correlated with birthweight, still remains a poor predictor for shoulder dystocia, even when this evaluation is correct antenatally.

Adult↗

[Clinical importance of fetal pulse oximetry. I. Methodological evaluation. Multicenter study. French Study Group on Oximetry of Fetal Pulse].

OBJECTIVE: To evaluate the feasibility of intrapartum fetal pulse oximetry, the distribution of fetal oxygen saturation values, and the relation with the neonatal outcome in a population with an abnormal fetal heart rate (FHR). STUDY DESIGN: A prospective multicenter observational study, from June 1994 to November 1995. Fetal oxygen saturation was continuously recorded using a Nellcor N-400 fetal pulse oximeter in case of abnormal FHR during labor. Simultaneous readings of fetal oxygen saturation and of fetal blood analysis (FBA) were obtained at inclusion and before birth. Feasibility, adverse effects, distribution of fetal oxygen saturation values and relation with neonatal outcome were assessed. RESULTS: 74 patients were included. From 172 attempted sensor placements, the procedure was impossible in three cases and fetal oxygen saturation values were obtained in 164 cases (95.3%). Physicians considered sensor placement an easier task than FBA attempt (easy in 87.5% vs 78.9% for FBA, p = 0.03). The mean reliable signal time (+/- SD) was 64.7 +/- 32% during the first stage. There were no serious adverse effects in the study population. The mean fetal oxygen saturation during the first stage of labor was 42.2 +/- 8.0% (10th-90th centile range: 30-53%). Fetal oxygen saturation was significantly correlated with scalp pH (r = 0.29; p = 0.01) but not with neonatal umbilical artery pH or gas values. There was a significant association between a low fetal oxygen saturation (< 30%) and a poor neonatal condition. CONCLUSION: The feasibility of fetal pulse oximetry is satisfactory in clinical practice. It is easy to use and provides a fair rate of recorded values, even in a population with suspicion of fetal distress. A low fetal oxygen saturation is significantly associated with an abnormal neonatal outcome.

Adult↗

[Clinical importance of fetal pulse oximetry. II. Comparative predictive values of oximetry and scalp pH. Multicenter study].

OBJECTIVE: To compare the predictive value of intrapartum fetal pulse oximetry to that of fetal blood analysis for an abnormal neonatal outcome in case of abnormal fetal heart rate (FHR). STUDY DESIGN: A prospective multicenter observational study, from June 1994 to November 1995. Fetal oxygen saturation was continuously recorded using a Nellcor N-400 fetal pulse oximeter in case of abnormal FHR during labor. Simultaneous readings of fetal oxygen saturation and fetal blood analysis obtained before birth, i.e. either at full dilatation, or before cesarean section when indicated, were compared with the neonatal status. The criteria for an abnormal neonatal outcome were 1) an umbilical arterial blood pH < or = 7.15 and 2) a combined variable including: 5 min. Apgar score < or = 7, umbilical arterial pH < or = 7.15, secondary respiratory distress, transfer in a neonatal care unit, or neonatal death. RESULTS: At a 7.20 threshold for fetal scalp pH, and 30% for fetal oxygen saturation (i.e. the tenth centile in the study population), the predictive value of fetal pulse oximetry was similar to that of fetal blood analysis for an arterial umbilical pH < or = 7.15, and for an abnormal neonatal outcome (positive predictive value 56% vs 55%, negative predictive value 81% vs 82%, sensitivity 29% vs 35%, and specificity 93% vs 91% respectively). The receiver operating curve showed similar performance of either technique for cut-off values < or = 7.20 for fetal blood pH and < or = 30% for fetal oxygen saturation, whereas fetal pulse oximetry became superior at higher thresholds. CONCLUSION: The predictive value of intrapartum fetal pulse oximetry can be favorably compared with that of fetal blood analysis. Randomized controlled management trials can now be performed to assess potential clinical benefits of this new tool.

Female↗

[Comparison of the Bishop score, of sonographic measurement of the cervical length and fibronectin determination in predicting time to delivery and the type of delivery at term].

Our aim was to compare the Bishop score, FNf assays, and the sonographic measurement of cervical length, in order to assess the best marker for time until spontaneous labor at term and risk of cesarean, especially for lack of progress of dilatation. This prospective study included 128 singleton vertex pregnancies with no clinical evidence of membrane rupture or regular contractions and a prenatal consultation between 39 weeks 4 days and 40 weeks 3 days. We successively assayed FNf, determine the Bishop scored, and measured cervical length by transvaginal ultrasound. The end points were the percentage of patients with a spontaneous onset of labor in the week following these tests and the type of delivery. The spontaneous onset of labor within a 7-day period was closely associated with a Bishop score > or = 6 and especially with a cervical length < or = 26 mm, but not with a positive FNf assay. On the other hand, vaginal delivery was significantly associated with the fibronectin assay but not with either the Bishop score or cervical length. Ultrasound measurement of cervical length and the fetal fibronectin assay provide different physiological data useful for different purposes: cervical length is more valuable than the Bishop score for predicting the onset of spontaneous labor within 7 days (when these assessments are performed close to term) and the FNf assay is very useful for evaluating the risk of cesarean.

Adult↗

[National survey on the use of induced labor by obstetricians. Study Group on Induced Labor].

INTRODUCTION: A strong rise in the use of induced labor has been observed in France. The aim of this work was to analyze the different methods used for achieving induction of labor and their implications. METHODS: One out of four French obstetricians were randomly selected to answer a questionnaire on their practice for achieving induction of labor. Four hundred of the 997 obstetricians answered the questionnaire. Univariate and multivariate analysis was applied. RESULTS: A high rate of induced labor was correlated with some areas of the country and with private practice. Certain methods were used in spite of opposing advice by experts in the field: elective induction of labor with unfavorable cervix, use of prostaglandins in elective induction of labor, induction of labor in cases of scarred uterus or breech presentation, use of misoprostol. Some methods were still used in spite of their poor efficacy: intravenous oxytocin used with unfavorable cervix, use of intravensou PGE2. CONCLUSION: This study would show that theory and practice are often distinctly different. Induction of labor is currently used on a far wider scale than ever before. We obviously need studies for careful assessment of the circumstances in which induction of labor is used in order to improve methods and indications of such a clinical practice.

Analysis of Variance↗

Treating ectopic pregnancy with the combination of mifepristone and methotrexate: a phase II nonrandomized study.

OBJECTIVE: Our goal was to compare the use of a combination of methotrexate and mifepristone with methotrexate alone in the medical management of ectopic pregnancy. STUDY DESIGN: This was a preliminary nonrandomized phase II study. All patients with progressing ectopic pregnancy meeting criteria for medical management were included. Treatment consisted of 50 mg/m2 of methotrexate injected intramuscularly and 600 mg of mifepristone, administered orally, compared with a previous group who received only 50 mg/m2 of methotrexate injected intramuscularly. RESULTS: Of the 30 patients treated with the combination, there was only 1 failure, whereas medical treatment had failed for 11 of 42 patients treated with methotrexate alone. CONCLUSIONS: The combination of mifepristone and methotrexate decreased the risk of failure in medical treatment of ectopic pregnancy.

Abortifacient Agents, Steroidal↗

[Stripping membranes at term. Review of randomized trials].

Stripping the membranes at term is a method for inducing labor. This method is currently performed but not well analyzed. Most trials were published after 1990 and the half of them since 1996. Seven of the nine randomized trials recently published showed the efficacity of stripping of the membranes performed between 38 and 42 weeks. It seems to become more efficient after 40 weeks. In these trials, increased of maternal (cesarean section rate, chorioamniotitis, premature rupture of membranes) or neonatal morbidity cannot be found. However, in these trials included populations are not enough large to conclude. Given the absence of large studies, it seems unjustified to repeat this intervention.

Female↗

[Limits of ambulatory medical treatment of ectopic pregnancies by intramuscular methotrexate: prospective study on 54 patients].

OBJECTIVE: To evaluate the limits of ambulatory treatment of ectopic pregnancy with an intramuscular injection of 50 mg/m2 methotrexate. METHOD: Non randomised prospective study from october 1993 and april 1996 at Poissy Hospital. 100 ectopic pregnancies were diagnosed: 54 were treated medically and 46 had a surgical treatment. RESULTS: The mean hCG for the ectopic pregnancies treated medically was 7,273 Ul/ml +/- 12,548 (90-68,220), an ectopic mass was seen in 74% and to precise the diagnosis a currettage was done in 24 cases (44%) if the initial hCG was below 2,000 Ul/ml. The medical treatment was a success for 37 (68.5%) ectopic pregnancies with a mean time of resolution of hCG of 31.9 days +/- 18 (4-90) (with a positive correlation between initial hCG titer and time to resolution of 0.5, p = 0.001). For 15 (27%) patients a second dose of methotrexate was necessary with a 73% success rate and 17 (32%) patients were operated (8 salpingectomies). Sixteen of 20 (80%) demonstrated tubal patency at follow-up hysterosalpingogram and within 7.5 +/- 4 months 26 of 30 (87%) conceived and there was no recurrence of ectopic pregnancy. CONCLUSIONS: The medical treatment of ectopic pregnancies with methotrexate has its limits. In our series, if we treat ectopic pregnancies without cardiac activity, with a mass below 35 mm and a hCG below 10,000 Ul/ml the success rate is 81%.

Adult↗