PubMed Health⌕ Search

Biomedical subjects

M Cosson

Publications and source records attributed to M Cosson.

At least 37 records · Page 2Linked to original sources

[Prosthetic reinforcement by the vaginal approach after surgical repair of pelvic prolapse].

INTRODUCTION: Prosthetic reinforcement by the vaginal approach for surgical repair of pelvic prolapse is experiencing increasing popularity despite problems with tolerance. The most frequently described complication is prosthesis exposure, also known as erosion or granuloma. The mechanism is associated with defective vaginal healing and is independent of major infection such as pelvic cellulitis. OBJECTIVES: The purpose of our study was to define the course of this complication and the best therapeutic strategy for patients with prosthesis exposure. MATERIALS AND METHOD: Our continuous and retrospective study conducted over a period of 24 months between January 2002 and December 2003 recorded 34 files. These patients underwent prosthetic treatment via the vaginal approach of genital prolapse associated with prosthesis exposure. The procedure, known as TVM (Tension free Vaginal Mesh), involves the insertion without fixing of a synthetic prosthesis in areas of bladder-vagina and rectum-vagina detachment. RESULTS: In 33 cases out of 34, the exposure site was located on the anterior colpotomy scar (97%). These prosthesis exposures were managed in two stages, using antiseptic treatment first. This treatment cured 9 patients (26.47%). In the event of failure, a procedure was carried out under brief general anesthesia on an outpatient basis or during a 24-hour hospital stay. This single resection was sufficient for 20 patients (88%). Two patients nevertheless required a second removal procedure (8%) and one patient a third procedure (4%). To notice, one patient presented with a bladder-vagina fistula after resection. This observation of a bladder-vagina fistula following partial removal led us to recommend a blue test and/or cystoscopy as routine practice for each procedure. CONCLUSION: With this new vaginal approach for prolapse repair, it is important to monitor prosthesis exposure. To manage exposures, it is necessary to begin with antiseptic or estrogenic treatment. In the event of failure, a partial resection is warranted. We recommend careful prosthesis resection and systematic verification of the bladder.

Adult↗

[Previous caesarean section is an operative risk factor in vaginal hysterectomy].

OBJECTIVE: We describe the intra and postoperative frequency of complications in vaginal hysterectomies for benign disorders in patients with a history of caesarean section. PATIENTS AND METHODS: Since 1996, 963 hysterectomies have been performed in our institution. 76.94% were performed exclusively by vaginal route (n = 741), 10.1% (n = 98) were by laparoscopic-assisted vaginal route and 12.9%, by pure abdominal route. We compared two groups of patients who underwent vaginal hysterectomy, with or without history of caesarean section. In each group we recorded the characteristics of the population and compared the intra and postoperative data, such as bladder or digestive tract wounds and haemorrhages. We used analysis of variance tests to compare means, chi2-tests and Fisher's exact tests for comparisons of numbers. A probability of P < 0.05 was adopted as the limit of significance. RESULTS: The frequency of haemorrhages was significantly higher in the patients with a history of caesareans. Bladder and intestine injury rates are significantly higher in the previous caesarean section group, but not significant for the bowel injuries. We compared the cumulative frequency of complications between the two groups. In the group with previous caesarean section, we recorded 18.3% of intra operative complications. In the group without history of caesarean section, we recorded 3.58% of complications. There is a significant difference between the cumulative frequency of complications in the two populations of patients in favour of the sub group without a history of caesarean scar (P < 0.0001). DISCUSSION AND CONCLUSION: A history of single or multiple previous caesarean section increases the intra operative risk in vaginal hysterectomies. The surgeon must take into account the history of caesarean section and be attentive to the previous operating time of the bladder and uterine region especially at the time of opening the anterior peritoneal cul-de-sac. Nevertheless, uterine scarring as a sequel to caesareans must not be a contraindication to the vaginal route.

Adult↗

[Changing attitudes on the surgical treatment of urogenital prolapse: birth of the tension-free vaginal mesh].

OBJECTIVES: To describe, in view of the new standardization, the technique for urogenital prolapse repair using a one-piece synthetic mesh. MATERIALS AND METHODS: The history and development steps through which the Tension free Vaginal Mesh (TVM) technique emerged are described. The use of a mesh was prompted by the 20-30% recurrence rate associated with conventional repair techniques. Selection of the type of mesh is discussed. Non-absorbable synthetic meshes have shown their usefulness in visceral surgery. A list of materials along with their respective advantages and inconveniences is reviewed and particular emphasis is put on both the tolerance and erosion issues, the latter being specific to the vaginal route. The TVM Group selected a one-thread polypropylene mesh, Prolene Soft, which seemed the most appropriate for the transvaginal approach of prolapse surgical repair. The prosthesis and its design rationale are described. Full details are given on the consecutive intervention steps and underlying concepts. RESULTS: The relevant literature is scarce and there is a lack of methodologically sound studies validating the materials and techniques used. After completion of a first step of technique refinement and feasibility assessment involving about 300 surgical interventions, the authors initiated a prospective multicenter study. Clinical outcome assessments using feasibility, complications, and efficacy endpoints will be published after twelve months, three years, and five years of follow-up. CONCLUSION: Fruitful reasoning led to the development of the TVM technique of complete surgical repair of genital prolapse, which uses a synthetic materiel carefully selected after several tests. All surgeons can apply this technique after a short training period.

Female↗

[Fluorescence imaging technique: diagnostic and therapeutic interest in gynecology].

Fluorescence techniques are presently used by several medical and surgical disciplines (dermatology, pneumology, urology, gastrointestinal surgery) for the diagnosis of pre-cancerous and cancerous lesions. The technique is based on the application of 5-aminolevulinic acid (5-ALA) which induces the production of an endogen photosensitizer: protoporphyrin IX (PpIX). Fluorescence detection of the infraclinical dysplasia lesion is based on the contrast between fluorescent pathological tissue and non-fluorescent healthy tissue. Moreover, there is a correlation between the degree of tissue dysplasia and fluorescence intensity. Fluorescence imaging could allow easier detection of infraclinical lesions enabling more well-targeted treatment. In gynecology, many experimental and clinical studies have been conducted on the detection and treatment of cervical dysplasia and the diagnosis and treatment of vaginal and vulvar diseases as well as the diagnosis of peritoneal micrometastasis from ovarian cancer, the diagnosis and treatment of endometrial alterations, and the treatment of locoregional recurrent skin breast cancer. The aim of this work is to present the fundamental principles of fluorescence imaging technical and to expose the diagnostic and therapeutic prospects in gynecology.

Aminolevulinic Acid↗

Long-term results of the Burch procedure combined with abdominal sacrocolpopexy for treatment of vault prolapse.

The aim of the study was to determine the long-term results of Burch procedures combined with vault prolapse repair by abdominal sacrocolpopexy. Between 1986 and 1997 82 women (mean age 46.0 years, range 27-79) underwent sacrocolpopexy combined with a Burch procedure. All patients presented with urinary incontinence and vault prolapse. The surgery consisted of a Burch procedure using non-absorbable suture material, and abdominal sacrocolpopexy with a non-absorbable mesh. The mesh was placed anteriorly and posteriorly in 66 cases, posteriorly (rectovaginal) in 12, and anteriorly (vesicovaginal) in 4. Additional procedures included hysterectomy (34 cases), enterocele repair (79 cases), and posterior repair with perineorrhaphy (65 cases). Failure was defined as the presence of persistent or worsened postoperative stress urinary incontinence (SUI). At a mean follow-up of 86 months (range 24-133) 34% (28/82) of patients were dry, and another 46% (38/82) were improved compared to their preoperative status. The postoperative SUI rate (persistent, worsened) after the placement of a single anterior mesh (4 failures out of 4) was higher than the postoperative SUI rate after combined meshes (41 failures out of 66) (log rank P = 0.05). All the patients with a history of prior surgery had worsened or persistent stress urinary incontinence (7/7), but 63% (47/75) of those with no prior surgery for stress urinary incontinence had worsened or persistent stress urinary incontinence (log rank P = 0.01). One case of recurrent rectocele was observed (after 20 months) and treated by transvaginal Richter sacrospinous fixation. At a mean follow up of 7 years, the Burch procedure combined with abdominal sacrocolpopexy appears to be less effective than previously published long-term results for the Burch procedure alone.

Adult↗

[Epithelial inclusion cyst formation after buried vaginal mucosa. Diagnosis and management].

OBJECTIVES: Surgical treatment in which a vaginal mucosa island is buried leads to a risk of epithelial inclusion cyst formation. The aim of this study is to describe this complication, assess incidence, precise facilitating factors and discuss treatment. PATIENTS AND METHOD: This study concerned 84 patients operated on between January 1996 and December 1998. They were treated with modified vaginal wall sling procedure. Fifty women were post-menopausal and 22 had estrogenotherapy. All patients had post-operative surveillance. The mean post-operative follow-up was 19 months (range: 1-68 months). Epithelial inclusion cyst formation diagnosis reposed exclusively on clinical assessment.Results. - Seven out of the 84 patients (8.3%) were diagnosed with epithelial inclusion cyst formation within 19 months of their operation (range: 3-34 months). Out of the seven patients, four were post-menopausal and three had received estrogenotherapy for many years. In six cases, epithelial inclusion cyst was symptomatically revealed by perineal pain or dysuria. These cases were successfully treated by cyst marsupialisation without recurrent incontinence. DISCUSSION AND CONCLUSION: The results of this short study show that epithelial inclusion cyst formation is a specific complication of surgical procedures burying a full thickness of vaginal mucosa and that estrogen impregnation seems to be the main facilitating factor. Successful treatment of symptomatic cases of epithelial inclusion cyst can be achieved by marsupialisation.

Adult↗

[Symptomatic bladder or ureteral endometriosis: report of 8 cases and review of the literature].

OBJECTIVES: The aim of this study was to determine the symptoms of bladder and ureteral endometriosis and to review the treatment approaches. MATERIALS AND METHODS: We conducted a retrospective studyover the period November 1989-July 2000. We reviewed the medical data of all women with bladder or utereral endometriosis who underwent a major surgery (ureteral reimplementation on psoas bladder, partial resection of the ureter, partial cystectomy). RESULTS: Eight women met the defined selection criterion, three with bladder injuryand five with ureteral injury. The only adverse postoperative complication was a passive ureteral reflux following ureteral reimplementation on psoas bladder. No recurrence on the urinary tract were reported. CONCLUSION: Surgical treatment is indicated for patient suffering from symptomatic bladder or ureteral endometriosis. Isolated bladder injuries due to endometriosis are mostly treated by laparoscopic surgery. Ureteral endometriosis may deteriorate the renal function. The initial step of the treatment may include an uterolysis by coelioscopy or an ureteral dilatation by ureteroscopy together with a medical treatment. The renal function must be closely monitored. In case of persistent or recurrent endometriosis, an ureteral resection would be justified.

Adult↗

[Peritoneovaginal fistula after vaginal hysterectomy].

Peritoneovaginal fistula is a rare complication of hysterectomy. A patient with pelvic pain and vaginal discharge due to peritoneovaginal fistula, 6 months after hysterectomy, is presented. The laparoscopic approach with an intravaginal blue-test, provided the evidence of the peritoneovaginal fistula. The transvaginal approach offered a surgical closure of the fistula and a resolution of the symptoms. In addition, we have reviewed the literature, the symptoms, the differential diagnosis and the management of this problem.

Diagnosis, Differential↗

[Dynamic MRI in the assessment of surgical results in genital prolapse: report of a case].

We wish to discuss the importance of MRI in association with the clinical pelvic examination for the study of vaginal prolapse, especially for the posterior compartment (rectocele, elytrocele). The increased sensitivity of static and dynamic MRI allowed a clinico-radiology relation more exactly for the study of prolapse. We describe a clinical observation where the RMI used before and after surgery is more reliable than the only clinic examination.

Female↗

[Comparative analysis of rate scales of urinary incontinence in women].

OBJECTIVE: Rate scales are used to analyse urinary incontinence. There are many scales making it difficult to compare the different studies of urinary incontinence. The purpose of this study was to evaluate and compare the rate scales pertaining specifically to urinary incontinence. PATIENTS AND METHOD: A review of the literature was performed for publications specifically addressing rate scales of urinary incontinence. Each scale was evaluated using the following four criteria: principal characteristics (reference source, number of items addressed, scoring method, language), objectives (type of incontinence, severity and quality of life measures), psychometric properties (scientific validity, reliability and responsiveness) and linguistic validation. RESULTS: Thirteen scales were identified. These were divided into two groups: (1) those based on "classifications" and (2) those based on specific questionnaires. Scales based on classifications were not precise and are never scientifically validated. Scales based on questionnaires were more elaborate and more detailed; nevertheless, the study of their psychometric properties was often incomplete. DISCUSSION AND CONCLUSION: Classification-based rate scales are inadequate to analyse urinary incontinence. Questionnaire-based rate scales are superior, but at minimum, they should address the previously stated objective and psychometric criteria. The choice of questionnaire should depend on whether it is to be used in clinical practice or for research protocol.

Female↗

[Mechanical properties of biological or synthetic implants used to treat genital prolapse and stress incontinence in women : what is the ideal material?].

INTRODUCTION: Many surgical techniques proposed for genital prolapse or stress incontinence use prosthetic material to reinforce native tissues. Most of the synthetic meshes used have been designed for hernia repair. MATERIAL AND METHOD: We study the biomechanical properties of human Alloderm or animals tissues like Pelvicol and of synthetic resorbable and permanent meshes. We report the results from the literature. We report the results of a personal study of the biomechanical properties of synthetic meshes. RESULTS: The literature on biomechanical properties of biological or synthetic meshes and their evolution after implantation is sparse. Biogyn ITY or Prolène are the only meshes without spatial orientation. Their resistance to rupture and mechanical properties are variable and seem poor for Biogyn W8 et Mersuture. DISCUSSION: Reviewing the literature we discuss the ideal properties for synthetic meshes used for cure of genital prolapse.

Animals↗

[Biomechanics of stress distribution and resistance of biological tissues: why use prostheses for the treatment of genital prolapse?].

BACKGROUND: Solidity and elasticity are the two main biomechanical properties of pelvic tissues involved in surgical cure of genital prolapse-prevertebral, pectinate, and sacrospinal ligaments, tendinous arcs of the pelvic fascia, vaginal tissue. We report data in the literature and personal studies concerning these autologous biological tissues. MATERIAL AND METHODS: The resistance of pelvic tissues was tested on 29 cadavers. Measurements were also made on two 2-cm samples of vaginal tissue obtained during vaginal route surgery for prolapse cure in 20 menopaused women. Stress tests were conducted to determine resistance and level of rupture. RESULTS: There was a wide variability in ligament resistance, ranging from a minimum of 22 Newtons to a maximum to the order of 200 Newtons. Results varied greatly from one woman to another and also between the two sides in the same woman. The prevertebral ligament exhibited the greatest resistance. The pectinate ligament was significantly more resistant than the sacrospinal ligaments and the tendinous arcs of the pelvic fascia. There was a significant relationship between the subjective assessment of ligament quality and objective measurements of resistance. For vaginal tissues, resistance varied greatly from 12 Newtons to a maximum to the order of 76 Newtons. Flexion values ranged from 14 to 130 Newtons. CONCLUSION: Our findings illustrate pelvic tissue failure observed in patients with genital prolapse. Individual maximal resistance of the pelvic ligaments is vary variable, between ligaments and between subjects, and even between sides in a given subject. Pelvic ligaments used for cure of genital prolapse are moderately resistant with wide interindividual variability. The mechanical properties of vaginal tissue are also very variable, illustrating why these tissues may exhibit a certain resistance against dissociation when exposed to loading but much less resistance when exposed to traction by a surgical suture. These findings suggest a revision of classical surgical procedures.

Age Factors↗

[Promontofixation procedure: use of non-absorbable sutures or Tackers?].

AIM: Description and evaluation of ligamentopexy techniques using strings and spiral staples. MATERIAL AND METHODS: We first describe the ligamentopexy procedure using non-absorbable sutures before comparing this technique to the use of Tacker type staples. We describe the advantages and disadvantages of this procedure in terms of surgical technique, secondary complications and biomechanical strength. RESULTS: For our team, recommendable attitude is to use non-absorbable sutures for the fixation to the prevertebral ligament. The main advantages of the use of staples are the ease and facility for learning the technique. The risk of spondylodiscitis is rare but enhanced by the deeper penetration of the staples into the intervertebral discs. In terms of resistanc, promontofixation using sutures is much stronger compared to staples. CONCLUSION: The use of sutures for promontofixation, in laparoscopy, is preferred to the utilization of staples type Tacker. These staples should be used when there is a risk of needle stitches for the patient.

Cadaver↗

[Surgical treatment of ectopic pregnancy].

Recent advances in therapeutics have considerably modified the management of ectopic pregnancy. However, surgical management is still indicated in some patients. Laparoscopic procedure is the reference surgical approach for the management of ectopic pregnancy. It reduces length of hospital stay, analgesic requirement, hospital cost, the risk of post-surgical adherence and is also associated with lower morbidity and better esthetic appearance. Laparotomy is now only performed in individuals for whom laparoscopy is contra-indicated. Patients can be treated conservatively, tubotomy with removal of the products of conception or radically, salpingectomy. In order to lower the failure rate and the risk of re-occurrence, some operative procedures are required including regular washing of the abdominal cavity, adhesiolysis and extraction in a protective bag. The choice of treatment is generally guided by the patient's past medical history and the wish to bear future children.

Fallopian Tubes↗

[Fertility after ectopic pregnancy: the population-based register of the urban area around Lille, Northern France].

The aims of this work were the evaluation of the reproductive outcome after ectopic pregnancy, and the assessment of the role of infertility risk factors and treatment's strategy. All patients in the population-based register of the urban area around Lille, Northern France, were followed-up. 345 women treated between April 1994 and March 1997, who were trying to become pregnant were interviewed by telephone every 6 months and then every year. The cumulative pregnancy rates were calculated by the Kaplan-Meier estimation. Associations between infertility risk factors and intrauterine pregnancy were tested by the logrank test, and by a Cox model for multivariate analysis. The mean duration of follow-up was 22 months, and 228 (66%) women had obtained a new pregnancy at the time of the analysis. 23 (10%) of the first pregnancies were recurrences. For women for whom EP occurred with an IUCD (17 patients), the 1 year intrauterine pregnancy (IUP) reached 67%. For the others, the 1 year IUP rate was 56%, and reached 67% after 2 years. After adjusting factors associated with fertility with a Cox regression, 3 factors seemed to lower reproductive performances: age > 35 years, previous history of infertility, and anterior tubal damage. More than half the women treated for EP obtained spontaneously a normally progressive pregnancy after 1 year. Reproductive performances are associated with characteristics of the patients, but do not depend on radical or conservative treatment.

Adult↗