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Dive into the research topics where J.-P. Schaal is active.

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Featured researches published by J.-P. Schaal.


International Journal of Cancer | 2003

Persistence and load of high-risk HPV are predictors for development of high-grade cervical lesions: a longitudinal French cohort study.

Véronique Dalstein; Didier Riethmuller; Jean-Luc Prétet; Karine Le Bail Carval; Jean-Loup Sautiere; Jean-Pierre Carbillet; Bernadette Kantelip; J.-P. Schaal; Christiane Mougin

Oncogenic HPV types are the major cause of worldwide cervical cancer, but only a small proportion of infected women will develop high‐grade cervical intraepithelial neoplasia or cancer (CIN2/3+). We performed a prospective study including 781 women with normal, atypical squamous cells of undetermined significance (ASCUS) or low‐grade squamous intraepithelial lesion (LGSIL) cytology, and infected or not by high‐risk (HR) HPV tested by Hybrid Capture II. Women were followed up every 6 months for a median period of 22 months. Among the HR‐HPV‐positive women at entry, more than half cleared their virus in 7.5 months; the clearance rate was greater for low viral loads than for high loads and also was higher in women with an initial ASCUS/LGSIL smear than in women with normal cytology. The incidence of cytologic abnormalities strongly depended on baseline viral load and HR‐HPV persistence. Maintenance of cytologic abnormalities was associated with the outcome of HR‐HPV status (negative


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2011

Mid-term outcome of laparoscopic sacrocolpopexy with anterior and posterior polyester mesh for treatment of genito-urinary prolapse

Fabrice Sergent; Benoı̂t Resch; Cécile Loisel; Violène Bisson; J.-P. Schaal; L. Marpeau

OBJECTIVES To evaluate the anatomical and functional outcomes of laparoscopic sacrocolpopexy using an anterior and a posterior polyester mesh, for the cure of genital prolapse at one year or longer. STUDY DESIGN This is a consecutive 5 year prospective observational study in which 119 patients presented with at least a Stage 2 apical prolapse, with an anterior or a posterior vaginal wall prolapse, who underwent a double sacrocolpopexy. Two large pore size (≥ 1mm) heavyweight (115 g/m(2)) multifilaments of polyester prostheses (Parietex Prosup PAC/GK 06, Sofradim-Covidien) were exclusively used for this technique. The prostheses were fixed on the levator ani muscles, the vagina and the sacrum with permanent extracorporeal laparoscopic sutures. Pre- and post-operative data referring to international pelvic organ prolapse quantitation classification (POP-Q), scores of quality of life and sexuality (French equivalent of the Pelvic Floor Distress Inventory (PFDI), Pelvic Floor Impact Questionnaire (PFIQ) and Pelvic organ prolapse-urinary Incontinence-Sexual Questionnaire (PISQ-12)) were compared. RESULTS With a mean follow-up of 34 months, 116 patients were accessible for evaluation. For these patients, the anatomical success rates (Stage 0 or 1) on the apical, anterior or posterior compartments were respectively, 97%, 89% and 98%. On the functional level, all the scores of quality of life and sexuality were improved. CONCLUSIONS This study confirms the effectiveness of laparoscopic sacrocolpopexy for the repair of the apical compartment prolapse. It also shows its effectiveness for the anterior compartment repair when the cystocele is moderate and limited to a median defect. In our experience, laparoscopic sacrocolpopexy with heavyweight polyester prosthesis is an effective treatment of the posterior defect.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2011

Instrumental delivery: clinical practice guidelines from the French College of Gynaecologists and Obstetricians.

Christophe Vayssière; Gael Beucher; Olivier Dupuis; Olivia Féraud; Caroline Simon-Toulza; L. Sentilhes; Emmanuelle Meunier; Olivier Parant; Thomas Schmitz; Didier Riethmuller; Olivier Baud; Fabienne Galley-Raulin; Pierre Diemunsch; Fabrice Pierre; J.-P. Schaal; Alain Fournié; Jean François Oury

Routine use of a partograph is associated with a reduction in the use of forceps, but is not associated with a reduction in the use of vacuum extraction (Level A). Early artificial rupture of the membranes, associated with oxytocin perfusion, does not reduce the number of operative vaginal deliveries (Level A), but does increase the rate of fetal heart rate abnormalities (Level B). Early correction of lack of progress in dilatation by oxytocin perfusion can reduce the number of operative vaginal deliveries (Level B). The use of low-concentration epidural infusions of bupivacaine potentiated by morphinomimetics reduces the number of operative interventions compared with larger doses (Level A). Placement of an epidural before 3-cm dilatation does not increase the number of operative vaginal deliveries (Level A). Posterior positions of the fetus result in more operative vaginal deliveries (Level B). Manual rotation of the fetus from a posterior position to an anterior position may reduce the number of operative deliveries (Level C). Walking during labour is not associated with a reduction in the number of operative vaginal deliveries (Level A). Continuous support of the parturient by a midwife or partner/family member during labour reduces the number of operative vaginal deliveries (Level A). Under epidural analgesia, delayed pushing (2h after full dilatation) reduces the number of difficult operative vaginal deliveries (Level A). Ultrasound is recommended if there is any clinical doubt about the presentation of the fetus (Level B). The available scientific data are insufficient to contra-indicate attempted midoperative delivery (professional consensus). The duration of the operative intervention is slightly shorter with forceps than with a vacuum extractor (Level C). Nonetheless, the urgency of operative delivery is not a reason to choose one instrument over another (professional consensus). The cup-shaped vacuum extractor seems to be the instrument of choice for operative deliveries of fetuses in a cephalic transverse position, and may also be preferred for fetuses in a posterior position (professional consensus). Vacuum extraction deliveries fail more often than forceps deliveries (Level B). Overall, immediate maternal complications are more common for forceps deliveries than vacuum extraction deliveries (Level B). Compared with forceps, operative vaginal delivery using a vacuum extractor appears to reduce the number of episiotomies (Level B), first- and second-degree perineal lesions, and damage to the anal sphincter (Level B). Among the long-term complications, the rate of urinary incontinence is similar following forceps, vacuum extraction and spontaneous vaginal deliveries (Level B). Anal incontinence is more common following forceps delivery (Level B). Persistent anal incontinence has a similar prevalence regardless of the mode of delivery (caesarean or vaginal, instrumental or non-instrumental), suggesting the involvement of other factors (Level B). Rates of immediate neonatal mortality and morbidity are similar for forceps and vacuum extraction deliveries (Level B). It appears that difficult instrumental delivery may lead to psychological sequelae that may result in a decision not to have more children (Level C). The rates of neonatal convulsions, intracranial haemorrhage and jaundice do not differ between forceps and vacuum extraction deliveries (Levels B and C). Rapid sequence induction with a Sellick manoeuvre (pressure to the cricoid cartilage) and tracheal intubation with a balloon catheter is recommended for any general anaesthesia (Level B). Training must ensure that obstetricians can identify indications and contra-indications, choose the appropriate instrument, use the instruments correctly, and know the principles of quality control applied to operative vaginal delivery. Nowadays, traditional training can be accompanied by simulations. Training should be individualized and extended for some students.


Neurourology and Urodynamics | 2011

Transvaginal mesh repair of pelvic organ prolapse by the transobturator-infracoccygeal hammock technique: long-term anatomical and functional outcomes.

Fabrice Sergent; Benoit Resch; Maysoon Al‐Khattabi; Aude Ricbourg; J.-P. Schaal; Loïc Marpeau

To evaluate long‐term anatomical and functional outcomes of the transobturator‐infracoccygeal hammock repair for complex genital prolapse with a porcine collagen‐coated polypropylene mesh.


Acta Obstetricia et Gynecologica Scandinavica | 2011

Is a planned cesarean necessary in twin pregnancies

F. Vendittelli; Olivier Rivière; C. Crenn-Hebert; Didier Riethmuller; J.-P. Schaal; M. Dreyfus

Objective. Evaluation of elective cesarean section for twin delivery as a standard of care. Design. Historical cohort in a national database (2 597 twin pregnancies). Setting. France. Sample. Twins with first child in cephalic presentation. Methods. Decision analysis. Main Outcome Measures. All neonatal complications, i.e. death, whether intrapartum or in the delivery room or the immediate postpartum period, or neonatal transfer to intensive (or special) care, or trauma, of one or both twins. Results. When we focused on neonatal complications for either or both twins, the strategy of planned vaginal delivery was preferable; the weight of its decision tree branch was lower than that for planned cesarean (26.5 vs. 31.7). If only twin 2 was considered, vaginal delivery was also preferred (weight of vaginal delivery=27.6 vs. 32.7 for planned cesarean). As long as the morbidity and mortality of twin 1 or twin 2 or both during a cesarean for twin 2 in the case of planned vaginal delivery does not exceed 31.5%, all else being equal, vaginal delivery should be preferred to a planned cesarean for twin 1 and twin 2. The two‐variable sensitivity analysis confirmed the robustness of the results. Conclusions. The results of our study do not support a policy of planned cesarean delivery for twin pregnancies at and after 34 weeks of gestation. Level of evidence: II.


Journal De Gynecologie Obstetrique Et Biologie De La Reproduction | 2008

Intérêt de la recherche du papillomavirus humain (HPV) dans le suivi post-conisation des CIN2–3: À propos de 386 cas

Didier Riethmuller; C. Gabelle; Rajeev Ramanah; Jean-Loup Sautiere; Jean-Luc Prétet; J.-P. Schaal; B. Kantelip; Christiane Mougin; R. Maillet

INTRODUCTION Cervical intraepithelial neoplasia (CIN) 2 and CIN3 lesions clearly represent precancerous states even if some of them would heal spontaneously. Management is based on surgical excision of part of the uterine cervix because such lesions can potentially progress into carcinomas. In most cases, this treatment leads to the cure of intraepithelial lesions. However, even after such an efficient treatment, theses patients are still at a higher risk of developing an invasive cervical cancer. That is why guidelines recommend a specific follow-up in order to screen for residual disease (incomplete excision) or for recurrences (after a complete excision). The actual problem in the follow-up strategy lies in the screening tools in use - cervical smears and colposcopy - whose sensitivities are low and hence, not quite sufficient when applied to a high risk population. These intraepithelial lesions are due to high risk human papillomaviruses (HPV) and there cannot be any lesion progression without HPV. Consequently, a viral testing would help in identifying a high risk subpopulation of women after cone loop cervical excision. MATERIAL AND METHODS We studied, retrospectively, the contribution of HPV testing (Hybrid Capture 2((R))) in the follow-up after CIN2-3 treatment in 386 cone loop cervical excisions performed at a single centre during 80 months. RESULTS Between three to six months follow-up after surgery, HPV remained present in 22.5% cases. The sensitivity of HPV testing in the screening for residual lesions or for recurrences was 100%, that of cervical smears cytology was 72%, whereas that of the pathological analysis of margins reached only 67%. The negative predictive value of a negative HPV detection associated with a normal cytology was 100%. DISCUSSION Owing to its clinical relevance, HPV testing optimises postoperative follow-up and leads to the rapid and efficient selection of a subgroup, representing less than one upon three patients who are really at risk of an invasive lesion and to wholly reassure the others. Indeed, a negative HPV testing, associated with a normal cervical cytology, obtained after surgery correspond to a negative predictive value of almost 100% and this allows us to increase the time-interval between two screenings and to rapidly place the patient in a routine follow-up.


Journal De Gynecologie Obstetrique Et Biologie De La Reproduction | 2008

Methods of fetal surveillance during labor. Methods and organization

François Goffinet; M. Dreyfus; J.-P. Schaal

Compte tenu du développement de plus en plus rapide des nouvelles techniques et d’une diffusion dans la littérature médicale d’une quantité très importante d’informations (plusieurs dizaines d’articles par mois dans le Medline®), il est impossible pour le clinicien de tout assimiler et a fortiori d’en faire la synthèse. Les conséquences sont qu’il existe de grandes variations dans les pratiques, avec de nombreuses pratiques médicales inappropriées, voire inutiles. Cette situation a conduit de nombreux pays à mettre au point des recommandations concernant les traitements, le diagnostic, les moyens de prévention et la prise en charge des pathologies. Le but de telles recommandations est d’aider le clinicien à prendre une décision médicale en lui fournissant une synthèse du niveau de preuve scientifique existant. Il ne s’agit en aucun cas de critères de jugement de la pertinence des pratiques médicales, ni des normes de qualité de ces pratiques, ni enfin des mesures de performances des pratiques.


Gynecologie Obstetrique & Fertilite | 2005

Intérêt de la mesure des lactates au scalp fœtal au cours du travail. Étude comparative avec le pH au scalp

R. Ramanah; A. Martin; Didier Riethmuller; Robert Maillet; J.-P. Schaal


Gynecologie Obstetrique & Fertilite | 2005

L'extraction instrumentale par spatules de Thierry : étude de la morbidité maternofœtale

Y. Maisonnette-Escot; Didier Riethmuller; S. Chevrière; P. Becher; N. Floret; B. Zurlinden; G. Teissier; R. Maillet; J.-P. Schaal


Gynecologie Obstetrique & Fertilite | 2004

Césarienne pour échec d'extraction par ventouse obstétricale : facteurs de risque et conséquences maternelles et néonatales

S. Miot; Didier Riethmuller; K. Deleplancque; O. Teffaud; M. Martin; R. Maillet; J.-P. Schaal

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Didier Riethmuller

University of Franche-Comté

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Christiane Mougin

University of Franche-Comté

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Jean-Luc Prétet

University of Franche-Comté

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F. Vendittelli

Centre national de la recherche scientifique

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