Détermination expérimentale des lois de comportement mécanique du placenta

ObjectivesDetermination of mechanical properties of human placenta.Patients and methodsRealisation of an experimental study using 80 human placentas and modelisation of this study using a finite element numerical model. Using the inverse analysis method, research of the parameters of placenta's behavior.ResultsHyper-Visco-Elastic law written by Ogden, optimized for placenta with parameters: μ₁ = 0.0001881 Mpa, μ₂ = −0.000240 Mpa, μ₃ = μ₄ = 0 Mpa and α₁ = 2, α₂ = −8, α₃ = α₄ = 0 in static condition.Discussion and conclusionThe parameters enable an approach of the mechanical behavior of the placenta. They could be used in numerical modelisation.     

Décidualisation ectopique géante du péritoine et de l’épiploon mimant une carcinose péritonéale

Ectopic decidual reaction of the peritoneum and the omentum is rare. It is usually an incidental finding during caesarean section and it could mimick macroscopically peritoneal carcinomatosis or tuberculosis. Histology is very important to make diagnosis. Ectopic decidual reaction is physiological, with an excellent prognosis and spontaneous resolution. We report one case of ectopic peritoneal and omental deciduosis of the peritoneum and discovered incidently during caesarian section. Definitive diagnosis was done by immunohistological examination. A laparoscopy four months later showed complete and spontaneous regression of all lesions.     

Hystérectomie Supracervicale par Laparoscopie : Déjà Vu?

Objectives: describe a technique of laparoscopic supracervical hysterectomy, and to compare its morbidity to that of total abdominal hysterectomy.Methods: records of patients selected for laparoscopie supracervical hysterectomy were studied retrospectively to compare their morbidity with that of randomly chosen patients fulfilling the same eligibility criteria where total abdominal hysterectomy was performed.Results: the group with laparoscopic supracervical hysterectomy was associated with a shorter hospital stay and less morbidity than the group with total abdominal hysterectomy. However, the laparoscopie technique required a much longer operating time. No difference was noted in the haemoglobin levels between the two groups.Conclusion: laparoscopic supracervical hysterectomy seems to be a safe and efficient alternative for most benign uterine pathologies and deserves to be further evaluated by prospective randmnized trials. However, compliance for gynaecological cancer screening is a prerequisite.