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Biomedical subjects

O Dupuis

Publications and source records attributed to O Dupuis.

At least 19 recordsLinked to original sources

Is neonatal neurological damage in the delivery room avoidable? Experience of 33 levels I and II maternity units of a French perinatal network.

OBJECTIVE: To determine the frequency of avoidable neonatal neurological damage. STUDY DESIGN: We carried out a retrospective study from January 1st to December 31st 2003, including all children transferred from a level I or II maternity unit for suspected neurological damage (SND). Only cases confirmed by a persistent abnormality on clinical examination, EEG, transfontanelle ultrasound scan, CT scan or cerebral MRI were retained. Each case was studied in detail by an expert committee and classified as "avoidable", "unavoidable" or "of indeterminate avoidability." The management of "avoidable" cases was analysed to identify potentially avoidable factors (PAFs): not taking into account a major risk factor (PAF1), diagnostic errors (PAF2), suboptimal decision to delivery interval (PAF3) and mechanical complications (PAF4). RESULTS: In total, 77 children were transferred for SND; two cases were excluded (inaccessible medical files). Forty of the 75 cases of SND included were confirmed: 29 were "avoidable", 8 were "unavoidable" and 3 were "of indeterminate avoidability". Analysis of the 29 avoidable cases identified 39 PAFs: 18 PAF1, 5 PAF2, 10 PAF3 and 6 PAF4. Five had no classifiable PAF (0 death), 11 children had one type of PAF (one death), 11 children had two types of PAF (3 deaths), 2 had three types of PAF (2 deaths). CONCLUSION: Three quarters of the confirmed cases of neurological damage occurring in levels I and II maternity units of the Aurore network in 2003 were avoidable. Five out of six cases resulting in early death involved several potentially avoidable factors.

Birth Injuries↗

[Perinatal regional hotline organisation and rate of perinatal transfer. Results from 2003 and 2004 in the French Rhône-Alpes area: A two year study of 4079 transfers].

INTRODUCTION: This study aims to describe the organization that was implemented at the Rhône-Alpes perinatal hotline, as well as to describe in utero transfer and neonate transport from an epidemiological point of view. MATERIAL AND METHOD: A cohort study was performed between January 2003 and December 2004. Every in utero transfer and neonate transport was included. Transfers performed in 2003 were compared to transfers performed in 2004. Three endpoints were defined: the rate of in utero transfer (number of in utero transfers/number of in utero transfers + number of neonatal transfers), the rate of transfer toward level II units (number of transfers from level I to level II/number of transfers from level I to level II + number of transfers from level I to level III) as well as the rate of intra network transfer (number of intra network transfers/number of intra network transfers + number of extra network transfers). RESULTS: In 2003, 865 in utero transfers (IUT) and 1297 neonate transports (NT) were performed, in 2004 848 IUT and 1069 NT were performed. The rate of in utero transfer significantly increased from 40 to 44.2% in 2004 (865/2162 versus 848/1917, p = 0.007). The rate of transfer toward level II units increased for the mothers from 31.8% to 36.9% (177/557 versus 174/471, p = 0.09) and significantly increased for the neonates from 43.2 to 51.6% in 2004 (335/775 versus 327/633, p = 0.002). Finally the rate of intra network transfer has not significantly changed: for the IUT it decreased from 87 to 86% (755/865 versus 732/848, p = 0.59) and for the NT from 91% to 90% (1179/1297 versus 963/1069, p = 0.45). CONCLUSION: The organization that was implemented allows not only a safe 24 hour on call management of maternal transfers as well as neonate transport, but also a precise knowledge of epidemiologic indications relative to perinatal transfer.

Cohort Studies↗

[Obstetrical forceps: yesterday, today and tomorrow. Toward a new classification of obstetrical forceps].

OBJECTIVE: Obstetrical forceps are used worldwide since more than 400 years. In 2003 forceps deliveries accounted for 6.3% of all deliveries of the AURORE Grand-Lyon perinatal network. Although more than 400 different forceps have been described, obstetrics handbooks neither describe experimental forceps nor provide any chapter dedicated to instrumental delivery training. Our aim was to provide junior obstetricians with information that will allow them to select the best instrument and to let them know about experimental as well as pedagogic forceps. PATIENTS AND METHODS: International literature review using the terms "forceps" and "delivery" and a four year experimental work involving a close collaboration between obstetricians and biomechanics of the INSA engineering school. RESULTS: Two instruments are presented as well as a new forceps classification. DISCUSSION AND CONCLUSION: This classification distinguishes between three types of forceps: operational forceps designed to delivers neonates, experimental forceps designed to study biomechanics and training forceps designed for resident training. For the first time the classic blind forceps procedure is transformed in a full screen real time procedure.

Equipment Design↗

[Compliance with a protocol of prevention of neonatal group B streptococcal sepsis in the Aurore perinatal network].

OBJECTIVE: Our purpose was to measure the compliance with the network hospitals protocol for preventing neonatal group B streptococcal sepsis. MATERIALS AND METHOD: All vaginal deliveries during a one-week period in 37 maternities of the perinatal network were reviewed retrospectively. RESULTS: A total of 752 records were reviewed. Compliance with the protocol regarding the time of culture was 91.1%. Overall, prevalence of group B streptococcal carriage was 14.2%. Among patients eligible for intrapartum antibiotics, 46.4% received adequate prophylaxis. Considering the length of labor, one out of two patients could have received intrapartum adequate antibiotics. Regarding newborns, 86.1% received adequate medical surveillance. There was no confirmed case of group B streptococcal sepsis during the week of study. CONCLUSION: All the maternities of network Aurore accepted and adopted evaluation principle. Some elements of protocol could be better applied, in particular delivering adequate intrapartum antibiotic prophylaxis.

Anti-Bacterial Agents↗

[Decision-to-deliver interval for forceps delivery and cesarean section: 137 extractions for abnormal fetal heart rhythm during labor].

AIM: Comparison of the decision to delivery interval in cases of forceps delivery and in cases of cesarean sections. MATERIAL AND METHOD: A retrospective analysis was performed on 137 cases of forceps deliver (n = 63) and cesarean section (n = 74) indicated for abnormal fetal heart rhythm. All cases were observed in a level 3 maternity unit between October 2003 and August 2004. RESULTS: The mean decision-to-delivery interval was significantly shorter in the forceps group (14.84 min +/- 6.54 versus 29.31 min +/- 11.79 p < 0.0001). Maternal and neonatal morbidity were comparable. CONCLUSION: This study suggest that once the fetal head is engaged, forceps delivery can significantly reduced the decision-to-delivery interval.

Adult↗

Evaluating the decision--to--delivery interval in emergency caesarean sections.

OBJECTIVE: To assess the interval between the decision to carry out an emergency caesarean section and delivery, and to determine whether this interval can be shortened. STUDY DESIGN: A retrospective study was performed in a French maternity hospital over a 6-month period. All caesarean sections performed during labour were included. These caesarean sections were divided into two groups according to Lucas's classification: (1) emergency and urgent caesarean sections and (2) scheduled caesarean sections. RESULTS: The mean decision--to--delivery interval was 39.5 min in the first group and 55.9 min in the second group. It was mainly influenced by the time taken to get the patient into theatre. The mean decision-to-operating theatre interval accounted for 45.6 and 53.8% of the mean decision-to delivery-interval, respectively. CONCLUSION: The recommended interval of 30 min is not routinely achieved. Improving communication within the perinatal team could decrease the decision--to--operating theatre interval and should be promoted.

Adult↗

[Surgical management of rectovaginal septum endometriosis from a continuous series of 50 cases].

OBJECTIVES: To assess the value of MRI and ano-rectal endosonography (ARES) for the diagnosis and surgical prognosis of rectovaginal septum endometriosis and to analyse the surgical management in order to evaluate its functional results and complications. PATIENTS AND METHODS: Retrospective study of 50 consecutive patients operated for a clinical presumption of endometriosis nodule of the recto vaginal septum. Thirty-nine patients had a MRI, 31 an ARES and 28 both exams. All the patients had a complete dissection of the rectovaginal septum and all lesions were excised. RESULTS: For the diagnosis of rectovaginal septum endometriosis nodule, MRI results are: sensitivity 73%, specificity 50%, positive predictive value (PPV) 89%, negative predictive value (NPV) 25%; for uterosacral ligaments involvement: sensitivity 84%, specificity 95%, PPV 94%, NPV 86% and for rectal wall infiltration: sensitivity 53%, specificity 82%, PPV 69%, NPV 69%. The ARES results for diagnosis of rectovaginal septum endometriosis nodule are: sensitivity 93%, specificity 100%, PPV 100%, NPV 50% and for rectal wall infiltration: sensitivity 100%, specificity 71%, PPV 81%, NPV 100%. ARES appeared more sensitive than MRI for the detection of rectal wall infiltration (P = 0.002) and for rectovaginal septum endometriosis nodule diagnosis (P = 0.03). Eighty-nine percent of the patients had a coelioscopy in first intention and 15 laparoconversions were performed, 11 in order to perform a digestive resection: 45 nodules were found. In 43cases the nodule was excised, associated to 19 digestive resections, 30 colpectomys, and 22 uterosacral ligaments resections. Three patients required an additional surgical treatment by Hartman's procedure with Mickulicz's drainage for peritonitis. Forty-one nodules were endometriosis nodules: the two other cases were fibrosis nodules. Thirty-three patients were interviewed about the evolution of their pains over a mean history of 20 months: 90% of the patients were satisfied with the management results. DISCUSSION AND CONCLUSIONS: Our data support the efficiency of MRI for rectovaginal septum endometriosis nodule and uterosacral ligaments involvement diagnosis; accord ARES to rectovaginal septum endometriosis nodule diagnosis and its reliability in establishing a diagnosis of rectal wall involvement. The surgical cure of rectovaginal septum nodules without digestive infiltration is performed by coelioscopic or coelio-vaginal procedure, but in case of associated digestive affliction, laparotomy is actually the standard procedure in order to achieve a complete cure of the lesions. Complications, in particular peritonitis, are not frequent. Our data support the efficiency of radical surgical treatment for the improvement of pain symptoms. Results on fertility seem to be satisfactory, but complication risks suggest being careful in this indication. Clinical examination during a catamenial period is essential in order to evoke the diagnosis. MRI yields a complete map of the sub-peritoneal and peritoneal lesions and ARES allows for the diagnosis of an infiltration of the rectal wall. Pre-operative association of those two exams is actually indispensable for the surgical management of those patients, which consists of complete excision of endometriosical lesions and is efficient at treating pain symptoms and fertility. Complications are rare but severe, therefore, justifying a cure in specialised centres.

Adult↗

[In utero transfer for preterm labor: experience of a regional perinatal hotline providing a 24-hour on call service].

OBJECTIVE: Preterm labor is one of the major causes of concern for level I and II obstetricians. The purpose of this study was to determine the incidence of in utero transfer performed for preterm labor. We also aimed to evaluate the algorithm we used in case of call for preterm labor. This algorithm allowed us to study the rate of endovaginal sonography use prior to in utero transfer, to calculate its predictive value and to evaluate the risk of delivery during transfer. PATIENTS AND METHOD: We conducted an 8-months prospective study of all calls for preterm labor received at a regional call center in France (EU). All obstetrical data were entered in a computerized anonymous database. Three months after the first call midwives collected data from the receiving hospital. RESULTS: Calls for preterm labor account for 40% of calls for in utero transfer. Two hundred and sixty-five calls have been received for preterm labor; among them 50 cases were associated with a preterm rupture of membrane, a maternal or fetal pathology and 14 cases were lost for follow-up. Those 64 cases were excluded leaving 201 cases for analysis. Twenty-eight had a cervix dilated 4 cm, or more, while 173 had a cervix dilated less than 4 cm. Fifty percent of woman that had a cervical dilatation of 4 cm or more delivered more than 4 h after the call. Among the 173 patients that had a cervix dilated less than 4 cm, 71% had not delivered 7 days after the hotline call and 26% had an endovaginal ultrasonography performed before the transfer. None of the women that had a cervical length longer than 27 mm delivered in the 7 following days. None of the 176 women that were transferred delivered during the transfer. DISCUSSION AND CONCLUSION: In utero transfer for preterm labor is the leading cause of in utero transfer. Endovaginal ultrasonography prior to transfer should be performed in order to avoid unnecessary transfer. Women who have a preterm labor with a cervical dilatation of 4 cm or more are not an absolute contra-indication to in utero transfer. In those cases the transfer indication should be discussed on a case-to-case basis including the actual term and the distance between hospitals.

Female↗

[Fecal and urinary incontinence after delivery: risk factors and prevention].

OBJECTIVE: This study was undertaken to review the available data on urinary and fecal incontinence and their association with maternal as well as fetal per partum characteristics. METHOD: A Pubmed (Medline search performed between 1999 and 2003 using "urinary incontinence and delivery" and "fecal incontinence and delivery" identified 501 relevant papers. Most of them are retrospective analyses whereas few are randomized controlled trials (RCT). RESULTS: Two studies performed with computer-stored databases analyzed the risk factors of incontinence among 2,886,126 deliveries. Primiparity, birthweight over 4000 g and all types of assisted vaginal deliveries significantly increased the risk of anal sphincter damage. Results concerning the effect of episiotomy are conflicting. Controlled randomized trials have shown that pelvic floor muscle training during pregnancy as well as planned cesarean section significantly and moderately decrease the risk of urinary incontinence. The only RCT available has shown that planned cesarean section did not reduce significantly incontinence of flatus. Finally the only trial that compare surgical techniques used to repair the anal sphincter did not show any significant difference. CONCLUSION: Risk factors for anal sphincter damage during delivery are well known. RCT focusing on how to prevent and how to cure fecal as well as urinary incontinence are urgently needed.

Anal Canal↗

[Diabetes and amoebiasis: a high-risk combination].

Amoebiasis is the second most common parasitic disease in the world. It occurs mainly in developing countries. Many people in endemic countries are asymptomatic carriers. It results in severe disease that can be fatal in rare cases. The case described in this report illustrates the growing risk of exposure to amoebiasis for diabetic patients as travel to endemic countries becomes more and more frequent. In the patient described here amoebiasis led to amoeboma, a rare complication of the colonic presentation. Despite a clinical disease syndrome mimicking that of an occluding gut tumor, the patient was treated medically with drugs alone. Retrospective studies show that diabetics are at higher risk for severe complications after amoebic infection. Because of the high incidence and severity of concurrent diabetes and amoeba, prophylactic measures are necessary for diabetic patients traveling in developing countries.

Aged↗

[Instrumental extraction in 2002 in the "AURORE" hospital network: incidence and serious neonatal complications].

OBJECTIVES: The purpose of this study was to evaluate the incidence of forceps and vacuum application and the incidence of its related neonatal complications. This study was performed in a network of 37 maternity hospitals. PATIENTS AND METHOD: A postal questionnaire was sent to 156 obstetricians between February and March 2003. RESULTS: Response rate was 78%. In 2002 the operative vaginal delivery rate was 11.2% of all live births. Forceps are the primary instruments (6.3%) whereas vacuum delivery rate was 4.9%. One obstetrician never uses forceps while 38 (31%) never use vacuum. Only 29 (24%) report using both instruments frequently. During 2002 no neonatal death related to an operative vaginal delivery was reported while 145 neonatal complications were (3.2%). Major complications were one depressed skull fracture (1/4589) and 14 extensive caput succedaneum (14/4589). Minor complications were cutaneous lesions (124/4589) and facial palsy (6/4589). Vacuum delivery was associated with a significantly higher extensive caput succedaneum rate (P = 0.018) while the only depressed skull fracture observed was related to forceps use. Forceps delivery was associated with a significantly higher cutaneous lesions rate (P < 0.001). DISCUSSION AND CONCLUSIONS: This study showed that, in 2002, operative vaginal deliveries still represent a significant amount of vaginal deliveries, a majority of obstetricians do not use both instrument and neonatal associated complications are frequent (3.2%) but rarely severe. Therefore, we believe that every method that allows a safe teaching of operative delivery should be promoted.

Adult↗

Multimodal therapy with intravenous biweekly leucovorin, 5-fluorouracil and irinotecan combined with hepatic arterial infusion pirarubicin in non-resectable hepatic metastases from colorectal cancer (a European Association for Research in Oncology trial).

BACKGROUND: The purpose of this study was to evaluate the tolerance and efficacy of combining i.v. irinotecan, 5-fluorouracil (5-FU) and leucovorin (LV) with hepatic arterial infusion (HAI) of pirarubicin in non-resectable liver metastases from colorectal cancer. PATIENTS AND METHODS: Thirty-one patients were included in a phase II trial with i.v. irinotecan/5-FU/LV administered every 2 weeks, combined with HAI pirarubicin 60 mg/m(2) on day 1 every 4 weeks. In most cases HAI was administered via a percutaneous catheter. RESULTS: The main grade 3/4 toxicity was neutropenia, encountered in 78% of the patients. When all patients were considered in the analysis, tumour response rate was 15 out of 31 [48%; 95% confidence interval (CI) 32% to 65%]. Liver resection was made possible in 11 patients (35%; 95% CI 21% to 53%). There were no toxic death. Median overall survival was 20.5 months, and median progression-free survival was 9.1 months. In patients with completely resected metastases, median overall survival was not reached and median progression-free survival was 20.2 months. CONCLUSION: The multimodality approach used in the present study was well-tolerated and yielded dramatic responses. An aggressive approach combining i.v. and HAI chemotherapy deserves further investigation.

Adult↗

[Home birth: opinion of French women and perinatal risk. Results of the French overseas departments 2000 survey].

OBJECTIVES: This study has two objectives: firstly, to find out what are the women's views about home birth, and secondly to perform a review of the perinatal risk associated with home birth. PATIENTS AND METHODS: A questionnaire was sent to 121 women in three maternity hospitals and a Medline search was performed using the following keywords: home delivery, hospital delivery, risk factor, perinatal transfer. RESULTS: Fifty two percent of these women think that home delivery "should or could be offered" (group I), 22% think that it "should never be offered" (group II); finally 26% "do not know" whether it should or not be offered (group III). The level of maternity care, educational standards, nationality, parity, annual income, age, location of the place of residence, do not modify the rate of women belonging to group I. Thirty four percent of women who have heard about complications happening during delivery think that home delivery "should never be offered" while 13% of women who have never heard of complications during delivery stated that it should never be offered (p = 0.024). Even if it is not significant the number of women belonging to group II increases with educational standards and maternal age. Most women believed that hospital delivery is safer, more restful, that pain relief is better, but also stated that it is more impersonal than home delivery. CONCLUSION: In this study more than one out of two women believed that home delivery "should or could be offered". Nevertheless, 22% stated that home delivery "should never be offered". The level of opposition to home delivery seems to increase with the level of information about potential obstetrical complications. A study should be designed to confirm this statement. The analysis of perinatal risks related to home delivery shows that two conditions should be fulfilled in order to allow home delivery: a careful selection, with validated risk factor, to eliminate high risk pregnancies, and clear and complete information on the small but real risk of perinatal transfer.

Demography↗

[Value of amnioculture for choosing antibiotic treatment for premature rupture of membranes before 34 weeks gestation].

OBJECTIVE: This study attempts to answer the following question: is systematic amniocentesis an efficient tool for adjusting an antibiotic treatment in case of preterm premature rupture of membranes? METHODS: Retrospective study of 76 cases of preterm premature rupture of membranes that occurred between January 1994 and February 1997 in a French teaching hospital. RESULTS: Amniocentesis was impossible for 28 patients (Group I). In this group there was a 46% rate of neonatal sepsis (n=13). Amniocentesis was successful in 48 patients. 24 delivered within 48 hours after amniocentesis (Group IIa). In this group there was a 29% rate of neonatal sepsis (n=7), and amniotic fluid culture was positive in 33% of the cases. 24 delivered beyond 48 hours after amniocentesis (Group IIb). In this group there was a 21% rate of neonatal sepsis (n=5) and amniotic fluid culture was positive in 12.5% of the cases. Group I and IIa had a high risk of neonatal sepsis and could not benefit from amniocentesis culture results. CONCLUSION: Group IIa and IIb cannot be distinguished a priori, therefore systematic amniocentesis can only have a restricted impact on the management of antibiotic therapy. Even in the case of a negative amniotic fluid culture, antibiotic therapy is mandatory. If a systematic amniocentesis policy is used, one hundred amniocentesis have to be performed in order to adapt six antibiotic therapies. In the group with the highest risk of neonatal sepsis (severe oligohydramnios), amniocentesis cannot be performed. A policy of systematic amniocentesis restricted to the cases that are not delivered within the first 48 hours could be evaluated in a prospective randomized trial. Such a policy could help in deciding whether to stop, adapt, or continue the antibiotic therapy, or to induce the delivery in case of an asymptomatic chorioamniotitis.

Amniocentesis↗

Herpes simplex virus encephalitis in pregnancy.

BACKGROUND: Although polymerase chain reaction (PCR) can detect herpes simplex virus (HSV) in the cerebrospinal fluid (CSF), HSV encephalitis remains a significant cause of neurologic impairment in pregnant women. Assessment of fetal contamination also remains a problem. CASES: We report two cases in which HSV encephalitis initially was not suspected and led to significant maternal neurologic impairment. In both cases, HSV PCR of CSF confirmed the diagnosis. In one case, fetal serum HSV PCR excluded fetal contamination. CONCLUSION: As soon as encephalitis in pregnancy is suspected, a combination of acyclovir and penicillin is recommended because the potential benefits far outweigh the risks. Using the HSV PCR, HSV infection in the fetus can be diagnosed.

Adult↗