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Biomedical subjects

M Canis

Publications and source records attributed to M Canis.

At least 19 recordsLinked to original sources
PubMed2007

[Interstitial Pregnancy. Ultrasonographic diagnosis and contribution of MRI. A case report].

We report ultrasonographic features of interstitial pregnancy and propose three magnetic resonance imaging criteria for the interstitial pregnancy localization. These criteria may facilitate the differentiation between an interstitial pregnancy and an angular pregnancy. The magnetic resonance imaging may be used whenever ultrasound examination diagnosis of an interstitial pregnancy is equivocal.

Abortifacient Agents, Nonsteroidal↗
PubMed2006

Both GnRH agonist and continuous oral progestin treatments reduce the expression of the tyrosine kinase receptor B and mu-opioid receptor in deep infiltrating endometriosis.

BACKGROUND: Deep infiltrating endometriosis (DIE) is commonly associated with severe pain. The pain can be managed successfully with GnRH agonists or continuous progestins. The precise molecular mechanism by which DIE causes pain or why hormonal treatment is effective, however, remains unclear. We recently identified three potential candidate genes that might be involved in DIE pain pathways: tyrosine kinase receptor B (TrKB), mu-opioid receptor (MOR) and serotonin transporter (5HTT). We hypothesized that if these three genes were involved in DIE-associated pain, their expression levels would probably be modulated by GnRH agonist or progestin. In this study, we compared mRNA expression levels of TrKB, MOR and 5HTT in DIE among patients pre-operatively treated with GnRH agonist, progestin or without pre-operative medical treatments. METHODS: The expression levels of TrKB, MOR and 5HTT mRNA in DIE were determined using laser capture microdissection and real-time RT-PCR techniques. RESULTS: The expression levels of TrKB in epithelial cells and MOR in stromal cells from DIE were significantly decreased in patients with pre-operative GnRH agonist or progestin. There was no significant difference in 5HTT expression levels among untreated, GnRH agonist- and progestin-treated patients. CONCLUSION: The expression levels of TrKB and MOR genes in DIE appeared to be modulated by GnRH agonist or progestin. However, the functional roles of TrKB and MOR in DIE remain to be clarified.

Adult↗
PubMed2006

[Endometriosis in teenagers].

Endometriosis has long been considered as a disease of women over 30 years old. However, recent data from the literature demonstrated its high incidence in teenagers. Endometriosis in teenagers is generally associated with chronic pelvic pains and cyclical signs are less common than in adults. The persistence of the pain despite an estroprogestative contraception associated with non-steroidal anti-inflammatory drugs is a strong argument for the diagnosis and justifies a laparoscopic exploration. During this laparoscopy, the search for atypical lesions, which are much more common than typical ones, is essential. Biopsies of these lesions is mandatory in every patient to rule out false positives and false negatives which are common in atypical lesions. The aim of the treatment is to improve the pain. The first line of medical treatment is based on the estroprogestative contraception and non-steroidal anti-inflammatory drugs. The prescription of GnRH should be the ultimate solution because the bone reserve increases until the age of 18 to 20. The laparoscopic treatment, when required, should be as complete as possible. Early diagnosis and medical management may prevent the development of the disease. However, further studies in the teenager are essential to improve the current empirical management.

Adolescent↗
PubMed2006

[Laparoscopic management of ovarian cysts during pregnancy].

OBJECTIVE: To evaluate the results of laparoscopic surgery in the management of ovarian cysts in pregnant patients. PATIENTS AND METHODS: Retrospective study including 26 pregnant patients who underwent the laparoscopic management of ovarian cysts. The indications for surgery were persistent adnexal mass, abnormal ovarian cysts revealed by ultrasound examination, suspicion of cyst complications. The technique used, the immediate postoperative results and obstetrical outcomes were studied. RESULTS: Twelve patients were operated during the first trimester of pregnancy, 13 in the second, and one in the third trimester. A 12 mmHg CO2 pneumoperitoneum was created, using a Veress needle in 22 cases, and an open technique in 4 cases. Trocar sites were decided according to the uterine size and to the cyst situation. A cystectomy was performed in 11 cases, an adnexectomy in 7 cases, an oophorectomy in one case, a cyst aspiration with a biopsy of the cyst wall in 6 cases and an ovarian torsion removal in one case. A conversion to laparotomy was necessary in 3 cases. There were no immediate postoperative complications and obstetrical outcomes were good in all cases. DISCUSSION AND CONCLUSION: In pregnant patients, laparoscopic management of adnexal masses appears to be safe for both mother and child.

Adult↗
PubMed2006

[Laparoscopy and gynecologic cancer in 2005].

All the surgical procedures, which may be required to treat a gynecologic cancer, can be performed endoscopically. However prospective randomized studies required to confirm the oncologic efficacy of the technique are still lacking in gynecology, whereas such studies are available in digestive surgery. Animal studies suggested that the risk of tumor dissemination in non traumatized peritoneum is higher after a pneumoperitoneum than after a laparotomy. Experimental studies also emphasized two points: the surgeon and the surgical technique are essential, all the parameters of the pneumoperitoneum may influence the postoperative dissemination. Changing these parameters we may, in the future, be able to create a peritoneal environment adapted to oncologic patients in order to prevent or to decrease the risks of peritoneal dissemination and/or of postoperative tumor growth. Until the results of prospective randomized studies become available, the preoperative selection of the patients and the surgical technique should be very strict. In patients with endometrial cancer, the laparoscopic approach should be reserved to clinical stage I disease, if the vaginal extraction is anticipated to be easy accounting for the volume of the uterus and the local conditions. In cervical cancer, the laparoscopic approach should be reserved to patients with favorable prognostic factors: stage IB of less than 2 cm in diameter. Laparoscopy is the gold standard for the surgical diagnosis of adnexal masses. But the puncture should be avoided whenever possible. The surgical treatment of invasive ovarian cancer should be performed by laparotomy whatever the stage. In contrast restaging of an early ovarian cancer initially managed as a benign mass, is a good indication of the laparoscopic approach. The laparoscopic management of low malignant potential tumors should include a complete staging of the peritoneum. Knowledge of the principles of endoscopy and of oncologic surgery is required. Teaching and diffusion of endoscopic oncological techniques are among the major challenges of gynecologic surgery within the next few years.

Animals↗
PubMed2006

[Laparoscopic promontal fixation: assessment of 100 cases].

AIM: Aim of the study is to evaluate long term results of 100 patients treated laparoscopically to repair genital prolapse and urinary incontinence. METHODS: A retrospective review analysis of 100 women, who underwent laparoscopic genital prolapse repair at Primary Referral University Hospital in Clermont-Ferrand. Patients characteristics, preoperatory exams, intraoperative, postoperative and outpatient clinic data were collected and analyzed. RESULTS: The mean operative time was 172 minutes. One laparotomy conversion was required, due to a technical problem. The mean hospitalization stay was 4.7 days. Two patients required a reintervention during their hospitalization stay, due to a complication. All the patients were reviewed during the 6 months later the intervention. The follow-up is between 6 months and 3 years. The average degree of cystocele and hysterocele was ameliorated from stage 3 to stage 0, the average stage of rectocele was ameliorated from stage 2 to stage 0, finally the average stage of vault prolapse was ameliorated from stage 1 to stage 0. The incidence of genuine stress incontinence was 47% in the preoperative time and only 4% at the long follow-up. We had a total 4% rate of mesh vaginal erosion. CONCLUSIONS: The laparoscopic sacrocolpopexy is an effective and safe technique to repair the major pelvic prolapses.

Female↗
PubMed2005

[Pregnant woman anaesthetic management in gynaecologic laparoscopic surgery at the maternity hospital of Clermont-Ferrand].

OBJECTIVE: To evaluate the anaesthetic management intended for pregnant women in the field of non obstetric and gynaecologic laparoscopic surgery. STUDY DESIGN: Retrospective and monocentric investigation. PATIENTS AND METHODS: Analysis of the anaesthetic and obstetric files from 27 pregnant women operated on in the establishment, between January 2001 and July 2004. RESULTS: 27 female patients involved in the study. The mean pregnancy term was 15 weeks when laparoscopic surgery was performed, though a single patient was at 30 weeks. The average duration of the surgery was 61 minutes, of which 28 minutes were dedicated to pneumoperitoneum. Twenty-four patients underwent general anaesthesia, the three others underwent locoregional anaesthesia. During the perioperative period no surgical, anaesthetic or obstetric complications were observed. CONCLUSION: Laparoscopic surgery during pregnancy requires double skilled management, both in anaesthesiology and obstetrics. On haemodynamics and breathing, pneumoperitoneum does not induce any additional effects when compared to operations without pregnancy. Except with delivery cases, anaesthetic support in laparoscopic surgery intended for pregnant women eventually does not generate any specific problems, but requires the same rigorous management as the one usually following surgery for pregnant patients.

Adult↗
PubMed2005

The macrophage stimulating protein/RON system: a potential novel target for prevention and treatment of endometriosis.

Our recent DNA microarray analysis using tissue obtained by laser capture microdissection (LCM) identified up-regulation of RON (a tyrosine kinase receptor) during the late secretory phase in eutopic endometrial epithelial cells from patients with deep endometriosis compared with control endometrium from women with macroscopically normal pelvic cavities. In the present study, we further investigated mRNA expression of RON and its ligand, macrophage stimulating protein (MSP), in deep endometriotic lesions, eutopic endometrium from patients with deep endometriosis and control endometrium by using LCM and quantitative real-time RT-PCR. MSP mRNA expression in endometrial epithelial cells was significantly up-regulated in endometriosis patients during the late secretory phase compared with expression in controls. Furthermore, we detected up-regulation of MSP mRNA in ectopic endometrial epithelial cells compared with matched eutopic endometrial epithelial cells within the same patients regardless of the menstrual phase. MSP has an intrinsically dual functional nature through its receptor RON-it is a trophic cytokine preventing apoptosis and a scatter factor promoting invasion, both of which may be necessary for the initial development and growth of endometriosis. The present findings suggest that the MSP/RON system may be involved in the pathophysiology of endometriosis.

Adult↗
PubMed2005

[About three consecutive pregnancies in a patient suffering from liver cirrhosis].

We report the case of a patient suffering from an immune liver cirrhosis with chronic liver insufficiency and a portal hypertension, presenting with three consecutive pregnancies. During the first pregnancy, stillbirth occurred at 34 weeks gestation (WG) with a justified vaginal delivery. There was no liver deterioration during the second pregnancy until 36 WG when fetal distress occurred, requiring a caesarean section under general anaesthesia. During the third pregnancy, fetal distress and maternal hepatic failure occurred at 35 WG, requiring an emergency caesarean section complicated with post partum haemorrhage and an episode of encephalopathy.

Adult↗