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Plastic and Reconstructive Surgery Nov 2012Reconstruction of the anterior abdominal wall is a complex procedure that can be complicated by contamination, loss of domain, previous scarring or radiotherapy, and... (Review)
Review
BACKGROUND
Reconstruction of the anterior abdominal wall is a complex procedure that can be complicated by contamination, loss of domain, previous scarring or radiotherapy, and reduced availability of local tissues. With the introduction of acellular dermal matrices to clinical use, it was hoped that many of the problems associated with previous synthetic materials could be overcome. With their enhanced biocompatibility, acellular dermal matrices are believed to integrate with surrounding tissues while demonstrating resistance to infection, extrusion, erosion, and adhesion formation.
METHODS
The MEDLINE database was reviewed, including all publications as of December 31, 2011, using the search terms "dermal matrix" or "human dermis" or "porcine dermis" or "bovine dermis," applying the limits "human" and "English language." Prospective and retrospective clinical articles were identified.
RESULTS
A total of 40 eligible articles were identified and included in this review. Thirty-five of the studies were level IV; the remaining studies were level III. Acellular dermal matrix was used to reconstruct the abdominal wall in a wide range of clinical settings, including trauma, tumor resection, sepsis, and hernia repairs. The operative methods varied widely among clinical studies. While the heterogeneity of the patient populations and techniques limited interpretation of the data, concerns were identified regarding high rates of hernia recurrence with acellular dermal matrix use.
CONCLUSION
High-quality data derived from level I, II, and III studies are necessary to determine the indications for acellular dermal matrix use and the optimal surgical techniques to maximize outcomes in abdominal wall reconstruction.
Topics: Abdominal Injuries; Abdominal Neoplasms; Abdominal Wall; Acellular Dermis; Clinical Trials as Topic; Collagen; Evidence-Based Medicine; Hernia, Ventral; Herniorrhaphy; Humans; Polypropylenes; Postoperative Complications; Prospective Studies; Plastic Surgery Procedures; Recurrence; Retrospective Studies; Surgical Mesh; Surgical Wound Dehiscence; Surgical Wound Infection; Treatment Outcome; Wound Healing
PubMed: 23096969
DOI: 10.1097/PRS.0b013e3182605cfc -
Environmental Pollution (Barking, Essex... May 2024Microplastics pose a significant environmental threat, with potential implications for toxic chemical release, aquatic life endangerment, and human food chain... (Review)
Review
Microplastics pose a significant environmental threat, with potential implications for toxic chemical release, aquatic life endangerment, and human food chain contamination. In Asia, rapid economic growth coupled with inadequate waste management has escalated plastic pollution in rivers, positioning them as focal points for environmental concern. Despite Asia's rivers being considered the most polluted with plastics globally, scholarly attention to microplastics in the region's freshwater environments is a recent development. This study undertakes a systematic review of 228 scholarly articles to map microplastic hotspots in Asian freshwater systems and synthesize current research trends within the continent. Findings reveal a concentration of research in China and Japan, primarily investigating riverine and surface waters through net-based sampling methods. Polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) emerge as the predominant microplastic types, frequently observed as fibers or fragments. However, the diversity of sampling methodologies and reporting metrics complicates data synthesis, underscoring the need for standardized analytical frameworks to facilitate comparative analysis. This paper delineates the distribution of microplastic hotspots and outlines the prevailing challenges and prospects in microplastic research within Asian freshwater contexts.
Topics: Microplastics; Rivers; Environmental Monitoring; Water Pollutants, Chemical; Asia; China; Japan; Plastics
PubMed: 38621450
DOI: 10.1016/j.envpol.2024.123985 -
The Cochrane Database of Systematic... Apr 2010Pelvic organ prolapse may occur in up to 50% of parous women. A variety of urinary, bowel and sexual symptoms may be associated with the prolapse. (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Pelvic organ prolapse may occur in up to 50% of parous women. A variety of urinary, bowel and sexual symptoms may be associated with the prolapse.
OBJECTIVES
To determine the effects of the many different surgeries used in the management of pelvic organ prolapse.
SEARCH STRATEGY
We searched the Cochrane Incontinence Group Specialised Register (9 February 2009) and reference lists of relevant articles. We also contacted researchers in the field.
SELECTION CRITERIA
Randomised or quasi-randomised controlled trials that included surgical operations for pelvic organ prolapse.
DATA COLLECTION AND ANALYSIS
Trials were assessed and data extracted independently by two review authors. Six investigators were contacted for additional information with five responding.
MAIN RESULTS
Forty randomised controlled trials were identified evaluating 3773 women. Abdominal sacral colpopexy was better than vaginal sacrospinous colpopexy in terms of a lower rate of recurrent vault prolapse (RR 0.23, 95% CI 0.07 to 0.77) and less dyspareunia (RR 0.39, 95% CI 0.18 to 0.86). However there was no statistically significant difference in re-operation rates for prolapse (RR 0.46, 95% CI 0.19 to 1.11). The vaginal sacrospinous colpopexy was quicker and cheaper to perform and women had an earlier return to activities of daily living. The three trials contributing to this analysis were clinically heterogeneous.For anterior vaginal wall prolapse, standard anterior repair was associated with more recurrent cystoceles than when supplemented with a polyglactin mesh inlay (RR 1.39, 95% CI 1.02 to 1.90) or porcine dermis mesh inlay (RR 2.72, 95% CI 1.20 to 6.14); but data on morbidity and other clinical outcomes were lacking. Standard anterior repair was associated with more anterior compartment failures on examination than for polypropylene mesh repair as an overlay (RR 2.14, 95% CI 1.23 to 3.74) or armed transobturator mesh (RR 3.55, 95% CI 2.29 to 5.51). Data relating to polypropylene mesh overlay were extracted from conference abstracts without any peer reviewed manuscripts available and should be interpreted with caution. No differences in subjective outcomes, quality of life data, de novo dyspareunia, stress incontinence, re-operation rates for prolapse or incontinence were identified. Blood loss with transobturator meshes was significantly higher than for native tissue anterior repair. Mesh erosions were reported in 10% (30/293) of anterior repairs with polypropylene mesh.For posterior vaginal wall prolapse, the vaginal approach was associated with a lower rate of recurrent rectocele or enterocele, or both, than the transanal approach (RR 0.24, 95% CI 0.09 to 0.64); although there was a higher blood loss and post-operative narcotic use. No data exist on efficacy or otherwise of polypropylene mesh in the posterior vaginal compartment.Meta-analysis on the impact of continence surgery at the time of prolapse surgery was performed with data from seven studies. Continence surgery at the time of prolapse surgery in continent women did not significantly reduce the rate of post-operative stress urinary incontinence (RR 1.39, 95% CI 0.53 to 3.70; random-effects model).
AUTHORS' CONCLUSIONS
Abdominal sacral colpopexy was associated with a lower rate of recurrent vault prolapse and dyspareunia than with vaginal sacrospinous colpopexy. These benefits must be balanced against a longer operating time, longer time to return to activities of daily living and increased cost of the abdominal approach. The use of mesh or graft inlays at the time of anterior vaginal wall repair reduces the risk of recurrent anterior wall prolapse, on examination. Posterior vaginal wall repair may be better than transanal repair in the management of rectoceles in terms of recurrence of prolapse. The value of the addition of a continence procedure to a prolapse repair operation in women who are dry before operation remains to be assessed. Adequately powered randomised controlled clinical trials are urgently needed on a wide variety of issues and particularly need to include women's perceptions of prolapse symptoms.
Topics: Female; Gynecologic Surgical Procedures; Humans; Pelvic Organ Prolapse; Randomized Controlled Trials as Topic; Rectal Prolapse; Secondary Prevention; Surgical Mesh; Suture Techniques; Urinary Bladder Diseases; Urinary Incontinence; Uterine Prolapse
PubMed: 20393938
DOI: 10.1002/14651858.CD004014.pub4 -
Journal de Chirurgie Oct 2009The Committee for the Assessment of Devices and Health Technologies (CEPP), one of the specialist committees of the French National Authority for Health (HAS),... (Comparative Study)
Comparative Study Review
[Prosthetic mesh for hernia repair: which mesh for which indication? Analysis of the Committee for the Assessment of Devices and Health Technologies of the French National Authority for Health (HAS). Assessment of prosthetic meshes for hernia repair].
UNLABELLED
The Committee for the Assessment of Devices and Health Technologies (CEPP), one of the specialist committees of the French National Authority for Health (HAS), reassessed the use of prosthetic mesh for hernia repair in 2008. Mesh use is reimbursed by French national health insurance for use in adult and pediatric surgery. This reassessment had two primary purposes: (a) to define the indications and clinical situations justifying the use of mesh, and to describe the technical requirements; (b) to define the conditions of prescriptions and of use and to contribute to decisions for the renewal of inscription.
METHODS
We performed a systematic review of published data and manufacturers' licenses and applied the judgment of a multidisciplinary working group of involved healthcare professionals. The CEPP first analyzed the different sorts of prosthetic mesh according to operative indications; they then compared the performance of each prosthesis based on comparative data from the literature or based on expert opinion when there was no available comparative data. The committee recommended three types of prosthesis: flat patch mesh, three-dimensional mesh (plug), and double-sided patch. Additional studies were recommended to confirm the benefits of selected products. The cost of meshes has been integrated into the reimbursement of each Diagnostic Related Group (DRG) and is no longer included in the List of Reimbursable Products and Services (Liste des produits et prestations remboursables [LPPR]); the High Authority for Health (HAS) recommends the selection of those prostheses evaluated by the CEPP in order to optimize the quality and cost of health care.
Topics: Adult; Follow-Up Studies; France; Hernia, Femoral; Hernia, Inguinal; Hernia, Umbilical; Humans; Laparoscopy; Meta-Analysis as Topic; Polyglactin 910; Polypropylenes; Randomized Controlled Trials as Topic; Surgical Mesh; Time Factors
PubMed: 19836748
DOI: 10.1016/j.jchir.2009.09.012 -
Annals of Surgery Mar 2000The ideal suture for abdominal fascial closure has yet to be determined. Surgical practice continues to rely largely on tradition rather than high-quality level I... (Comparative Study)
Comparative Study Meta-Analysis
BACKGROUND AND OBJECTIVE
The ideal suture for abdominal fascial closure has yet to be determined. Surgical practice continues to rely largely on tradition rather than high-quality level I evidence. The authors conducted a systematic review and meta-analysis of randomized controlled trials to determine which suture material and technique reduces the odds of incisional hernia.
METHODS
MEDLINE and Cochrane Library databases were searched for articles in English published from 1966 to 1998 using the keywords "suture", "abdomen/surgery", and "randomized controlled trials". Randomized controlled trials, trials of adult patients, and trials with a Jadad Quality Score of more than 3, comparing suture materials, technique, or both, were included. Two independent reviewers critically appraised study quality and extracted data. The reviewers were masked to the study site, authors, journal, and date to minimize bias. The primary outcome was postoperative incisional hernia. Secondary outcomes included wound dehiscence, infection, wound pain, and suture sinus formation.
RESULTS
The occurrence of incisional hernia was significantly lower when nonabsorbable sutures were used. Suture technique favored nonabsorbable continuous closure. Suture sinuses and wound pain were significantly lower when absorbable sutures were used. There were no differences in the incidence of wound dehiscence or wound infection with respect to suture material or method of closure. Subgroup analyses of individual sutures showed no significant difference in incisional hernia rates between polydioxanone and polypropylene. Polyglactin showed an increased wound failure rate.
CONCLUSIONS
Abdominal fascial closure with a continuous nonabsorbable suture had a significantly lower rate of incisional hernia. The ideal suture is nonabsorbable, and the ideal technique is continuous.
Topics: Abdominal Muscles; Absorption; Adult; Fasciotomy; Hernia, Ventral; Humans; Postoperative Complications; Randomized Controlled Trials as Topic; Suture Techniques; Sutures
PubMed: 10714638
DOI: 10.1097/00000658-200003000-00018 -
Current Neuropharmacology 2022Poloxamer 188 (P188) is an FDA-approved biocompatible block copolymer composed of repeating units of Poly(Ethylene Oxide) (PEO) and poly(propylene oxide) (PPO). Due to...
Poloxamer 188 (P188) is an FDA-approved biocompatible block copolymer composed of repeating units of Poly(Ethylene Oxide) (PEO) and poly(propylene oxide) (PPO). Due to its amphiphilic nature and high Hydrophile-Lipophile Balance (HLB) value of 29, P188 is used as a stabilizer/emulsifier in many cosmetics and pharmaceutical preparations. While the applications of P188 as an excipient are widely explored, the data on the pharmacological activity of P188 are scarce. Notably, the neuroprotective potential of P188 has gained a lot of interest. Therefore, this systematic review is aimed at summarizing evidence of neuroprotective potential of P188 in CNS disorders. The PRISMA model was used, and five databases (Google Scholar, Scopus, Wiley Online Library, ScienceDirect, and PubMed) were searched with relevant keywords. The search resulted in 11 articles, which met the inclusion criteria. These articles described the protective effects of P188 on traumatic brain injury or mechanical injury in cells, neurotoxicity, Parkinson's disease, Amyotrophic lateral sclerosis (ALS), and ischemia/ reperfusion injury from stroke. All the articles were original research in experimental or pre-clinical stages using animal models or in vitro systems. The reported activities demonstrated the potential of P188 as a neuroprotective agent in improving CNS conditions such as neurodegeneration.
Topics: Animals; Central Nervous System Diseases; Humans; Neuroprotective Agents; Poloxamer; Reperfusion Injury
PubMed: 34077349
DOI: 10.2174/1570159X19666210528155801 -
Neurourology and Urodynamics Nov 2018Sacrocolpopexy (SCP) is an extensively studied and highly efficacious treatment for female pelvic organ prolapse (POP). We aimed to analyze the technical steps for...
AIMS
Sacrocolpopexy (SCP) is an extensively studied and highly efficacious treatment for female pelvic organ prolapse (POP). We aimed to analyze the technical steps for performance of a SCP among all RCTs in the literature that compared it with different procedures, or that studied different routes for performing SCP.
METHODS
Systematic review searching electronic databases for RCTs only. We extracted data for 13 points of interest; main outcomes were procedure standardization; depth of vaginal dissection; number of sutures in the vaginal wall; type of suture in the vaginal wall; type of mesh fixation to the sacrum; and type and shape of mesh used.
RESULTS
Twenty-two RCTs were included. Most of them did not provide a full standardized description of the procedure steps. There was great heterogeneity in almost all steps of the operation, including the choice of materials for attaching the mesh to the vagina and sacrum-with both absorbable and non-absorbable sutures being used-and the extent of vaginal dissection for mesh fixation, with some studies dissecting only the apex, superficially, while others performed a full-length dissection. Choice of mesh material was more consensual, with polypropylene mesh being the most commonly used.
CONCLUSIONS
SCP is a highly unstandardized procedure in the literature, albeit being used as a major comparator. Various RCTs compared alternative procedures with SCP, but the technical aspects have varied greatly, and studied outcomes could have been potentially influenced by these technical choices.
Topics: Female; Gynecologic Surgical Procedures; Humans; Pelvic Organ Prolapse; Randomized Controlled Trials as Topic; Sacrum; Surgical Mesh; Suture Techniques; Treatment Outcome; Vagina
PubMed: 30024069
DOI: 10.1002/nau.23764 -
The Medical Journal of Malaysia Jun 2018The aim of this systematic review is to compare the vaginal erosion rates in different synthetic materials used in suburethral slings in Tension Free Vaginal Tape (TVT-O...
INTRODUCTION
The aim of this systematic review is to compare the vaginal erosion rates in different synthetic materials used in suburethral slings in Tension Free Vaginal Tape (TVT-O /TOT) procedures in management of female stress urinary incontinence.
METHODS
PRISMA 2009 framework was adopted for study design. Scholarly literature search was done using MEDLINE, EMBASE, the Cochrane Library and Clinical Trials.gov using selected keywords. Five articles fulfilled the inclusion and exclusion criteria. Our main outcome of interest is to review the ideal properties of the suburethral sling, procedure of insertion and post-surgical complication following the sling insertion primarily vaginal erosion. Results were compared using one way-ANOVA test and independent T- test.
RESULTS
Total of 1725 subjects were available for analysis in the five studies. Monofilament polypropylene constituted 92.5% of the total sample size from one study alone. Polyester (n= 16/51) causes higher incidence rate of vaginal erosion compared to monofilament polypropylene (31.4 vs., 4.7; p = 0.01). There was no difference in the vaginal erosion rate between monofilament polypropylene and multifilament polypropylene (4.7 vs, 14.1; p=0.055) as well as between multifilament polypropylene and polyester (14.1 vs, 31.4; p=0.068). Although there was a marginally lower rate of vaginal erosion in TVT-O over TVT, the difference was not significant. (5.6 vs., 6.4, p=0.468). Common presentations of vaginal erosion were vaginal discharge, perineal pain and dyspareunia.
CONCLUSION
Given the limited sample size, polyester sling material appears to cause higher rates of vaginal erosion. No difference in erosion rate was seen between TVT and TVT-O.
Topics: Female; Humans; Incidence; Suburethral Slings; Urinary Incontinence, Stress; Vaginal Diseases
PubMed: 29962498
DOI: No ID Found -
Journal of Minimally Invasive Gynecology Jan 2019Endometriosis is a benign complex gynecologic condition with high morbidity that affects women of reproductive age. Pelvic adhesion formation represents a serious...
Endometriosis is a benign complex gynecologic condition with high morbidity that affects women of reproductive age. Pelvic adhesion formation represents a serious clinical challenge in the management of patients with endometriosis. Several interventions aimed at reducing postoperative ovarian adhesion formation have been proposed in recent years. Here we summarize the published evidence on the efficacy of ovarian suspension in preventing postoperative ovarian adhesion formation in women undergoing laparoscopic surgery for stage III-IV endometriosis. The research was conducted using electronic databases. A review of the abstracts of all references retrieved from the search was conducted. Selection criteria for the systematic review included all randomized controlled trials (RCTs) and nonrandomized studies (NRSs) of premenopausal women diagnosed with stage III-IV pelvic endometriosis who underwent ovarian suspension or no ovarian suspension (control group). The RCTs were eligible for meta-analysis. Eight studies, 2 RCTs and 6 NRSs, were included in the systematic review. In all 8 studies, ovarian suspension was performed during surgery for stage III-IV endometriosis. The site of the suspension was the anterior abdominal wall in 76.8% of the cases. Five studies reported the use of polypropylene as suture for the suspension. Removal of the suspension suture in the postoperative period was reported in 6 studies. Pooled data from a meta-analysis of the RCTs show that women who underwent ovarian suspension had a significantly lower incidence of postoperative adhesion formation, particularly of moderate to severe adhesions. Ovarian suspension may reduce the rate and severity of postoperative adhesions formation in women undergoing laparoscopy for the treatment of stage III-IV endometriosis; however, RCTs with larger sample sizes are needed.
Topics: Endometriosis; Female; Gynecologic Surgical Procedures; Humans; Laparoscopy; Ovary; Sutures; Tissue Adhesions
PubMed: 30092363
DOI: 10.1016/j.jmig.2018.07.021