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PURPOSE: The vaginal microbiota offers valuable insights into women's sexual health and the risk of developing sexually transmitted infections (STIs) and bacterial vaginosis. Despite the public health implications of changes in the vaginal environment, existing data on this topic remain sparse. METHODS: Following the PRISMA statement guidelines, we consulted five bibliographic databases, focusing on five main daily habits and behaviors. We included only studies published up to October 2023, investigating the influence of personal hygiene, sexual behaviors, hormonal contraception, smoking, alcohol consumption, and psychosocial stress on the vaginal microbiota using next-generation sequencing. RESULTS: Based on our inclusion criteria, we incorporated 37 studies into this review. Hormonal contraception and personal hygiene were found to promote eubiosis of the vaginal microbiota. In contrast, sexual behaviors, smoking, alcohol consumption, and psychosocial stress were associated with an increased susceptibility to bacterial vaginosis, STIs, and severe pelvic inflammatory diseases due to a modified vaginal microbiota. Black ethnicity emerged as a confounding factor, with this population showing unstable vaginal microbiota. Oral contraception and a stable male sexual partner were found to favor Lactobacillus colonization, acting as a protective factor. Conversely, non-hormonal contraception and unprotected or non-penile/vaginal sexual activity increased the incidence of vaginal inflammation and bacterial vaginosis by disturbing the vaginal microbiota and reducing Lactobacillus abundance. CONCLUSION: Daily habits and lifestyle can influence the composition of the vaginal microbiota, thereby affecting vaginal health. Disturbances in the vaginal microbiota could be associated factors for STIs and vaginosis. Therefore, prioritizing more appropriate management of the vaginal microbiota is crucial.
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The live birth rate following embryo transfer is comparable between spontaneous, stimulated and artificial cycles. However, the pregnancy loss rate appears elevated with hormonal therapy, possibly due to luteal insufficiency. This study aimed to determine whether the serum progesterone level on transfer day differed according to the endometrial preparation method for frozen embryo transfer (FET). Twenty spontaneous cycles (SC), 27 ovarian stimulation cycles (OS) and 65 artificial cycles (AC) were retrospectively studied from May to December 2019 in a single French hospital. The primary endpoint was the level of serum progesterone on the day of FET between the three endometrial preparation methods. The mean serum progesterone level on transfer day was 29.47 ng/ml in the OS group versus 20.03 ng/ml in the SC group and 14.32 ng/ml AC group (P < 0.0001). Progesterone levels remained significantly different after logistic regression on age and anti-Müllerian hormone (AMH) level. There was no significant difference in demographic and hormone characteristics (age, body mass index, embryo stage of embryo, type of infertility, basal follicle stimulating hormone, luteinizing hormone, estradiol and AMH levels), endometrial thickness, number and type of embryos transferred, duration of infertility, pregnancy rate, live birth rate and pregnancy loss rate. No difference was found in serum progesterone levels between clinical pregnancy with fetal heartbeat and no clinical pregnancy (no pregnancy or pregnancy loss, 17.49 ng/ml vs 20.83 ng/ml, respectively, P = 0.07). The lower serum progesterone level found on FET day in the AC group should be further investigated to see whether this difference has a clinical effect on the live birth rate.
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Infertilidade , Progesterona , Feminino , Gravidez , Humanos , Estudos Retrospectivos , Nascido Vivo , Transferência Embrionária/métodos , Taxa de GravidezRESUMO
STUDY OBJECTIVE: To evaluate the safety and potential efficacy of a novel degradable polymer film (DPF) designed to act as a 7-day barrier to prevent intrauterine adhesions (IUAs) after hysteroscopic myomectomy. DESIGN: A prospective single-arm, first-in-human clinical study. SETTING: Multicenter study involving 6 centers in France, Belgium, and the Netherlands. PATIENTS: Women aged 40 years or older with no plans to conceive who qualified for hysteroscopic myomectomy (at least 1 10-mm type 0, 1, or 2 myoma) and had a sounded length of the uterine cavity (fundus to exocervix) ranging between 6 cm and 9 cm were considered eligible for the study. INTERVENTIONS: The DPF was inserted after hysteroscopic transcervical myoma resection. The women were followed up by a telephone call at 30 days and second-look hysteroscopy 4 to 8 weeks after the procedure. MEASUREMENTS AND MAIN RESULTS: The chosen safety outcome measures were uterine perforation or cervical trauma at the time of the DPF insertion and unexpected fever, pain, or bleeding beyond 48 hours and up to 30 days after insertion, whereas the outcome measure for efficacy was the absence of IUAs on second-look hysteroscopy. A total of 23 women participated in the study. There were no incidents of uterine perforation or cervical trauma at the time of the DPF insertion. There were no reported adverse effects attributable to the DPF. On second-look hysteroscopy, 20 (87%) of the 23 women had no IUAs. CONCLUSION: The DPF is a novel, easy-to-apply, and acceptable device to prevent IUAs, with very promising initial safety and efficacy data.
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Doenças Uterinas , Miomectomia Uterina , Feminino , Humanos , Histeroscopia/efeitos adversos , Gravidez , Estudos Prospectivos , Aderências Teciduais/etiologia , Aderências Teciduais/prevenção & controle , Miomectomia Uterina/efeitos adversosRESUMO
STUDY OBJECTIVE: To study the safety of a degradable polymeric film (DPF) and its efficacy on reducing the risk of intrauterine-adhesion (IUA) formation in a rat model. DESIGN: A series of case-control studies relying on random allocation, where feasible. SETTING: University and good practice animal laboratories. ANIMALS: The animal models comprised female and male Oncins France Strain A and female Wistar rats. INTERVENTION(S) AND MEASUREMENTS: The Oncins France Strain A rats were used for in vivo evaluation of the impact of the DPF on endometrial thickness and its effect on fertility. For in vivo evaluation of the biologic response, 40 Wistar rats were randomly allocated to intervention and control groups, with matched sampling time after surgery. Finally, for the in vivo evaluation of the DPF's efficacy on IUA prevention, a total of 24 Wistar rats were divided into 3 groups: 1 treated with the DPF, 1 treated with hyaluronic acid gel, and a sham group. MAIN RESULTS: The DPF did not have a significant impact on endometrial thickness, and there were no significant differences in the number of conceived or prematurely terminated pregnancies, confirming its noninferiority to no treatment. The DPF did not induce irritation at 5 days and 28 days. Finally, the DPF significantly reduced the likelihood of complete IUA formation compared with hyaluronic acid gel- and sham-implanted animals, where only 27% of the animals had their uterine cavity obliterated compared with 80% and 100%, respectively. CONCLUSION: The DPF is a safe film that is effective in preventing IUA formation after intrauterine curettage in rats.
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Doenças Uterinas , Animais , Estudos de Casos e Controles , Feminino , Humanos , Ácido Hialurônico , Masculino , Gravidez , Ratos , Ratos Wistar , Aderências Teciduais/prevenção & controle , Doenças Uterinas/prevenção & controleRESUMO
INTRODUCTION: The prevalence of Caesarean delivery is rising steadily worldwide, and it is important to identify its future impact on fertility. A number of articles have been published on this subject, but the impact of Caesarean section on reproductive outcomes is still under debate, and none of these articles focus exclusively on frozen blastocysts. OBJECTIVE: The aim of this study was to evaluate the impact of a previous Caesarean delivery compared with a previous vaginal delivery on the chances of a live birth following the transfer of one or more frozen embryos at the blastocyst stage. METHODS: This was a retrospective, bicentric study at the University Hospitals of Nîmes and Montpellier, conducted between January 1st, 2016 and February 1st, 2021. Three hundred and ninety women with a history of childbirth and a transfer of one or more frozen embryos at blastocyst stage were included in the analysis. The primary outcome was the number of live births. Secondary outcomes were: the rate of positive HCG, miscarriage, ectopic pregnancy and clinical pregnancy, as well as the live birth rate according to the presence or absence of an isthmocele. RESULTS: Of the 390 patients included, 118 had a previous Caesarean delivery and 272 a vaginal delivery. No statistically significant differences were found for the primary (pâ¯=â¯0.9) or secondary outcomes. A trend towards lower live birth rates was observed in patients with isthmoceles, but this did not reach significance (p>0.9). On the other hand, transfers were more often described as difficult in the Caesarean delivery group (pâ¯=â¯0.011). CONCLUSION: Our study found no effect of previous Caesarean delivery on the chances of live birth after transferring one or more frozen blastocysts. However, further prospective studies are needed to confirm these results.
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Cesárea , Resultado da Gravidez , Gravidez , Feminino , Humanos , Resultado da Gravidez/epidemiologia , Taxa de Gravidez , Estudos Retrospectivos , Transferência Embrionária/métodos , BlastocistoRESUMO
BACKGROUND: In the field of male infertility, when sperm is normal/subnormal, a few "add-on" routine tests can complete the basic semen examination. OBJECTIVES: The aim of this study was to develop and evaluate a faster, simplified motile sperm organelle morphology examination (MSOME) technique for selected infertile patients with apparently normal/subnormal sperm and, in their background: failure of two or three intrauterine insemination (IUI) cycles, repeatedly fragmented embryos, embryonic development to blastocyst-stage failures, repeated miscarriages, a long period of infertility or 2 or more IVF attempts without pregnancy. Our test results were correlated with IUI, conventional in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI) and intracytoplasmic morphologically selected sperm injection (IMSI) outcomes. MATERIALS AND METHODS: We validated an adapted version of the MSOME analysis called the pre-IMSI test (PIT), based on vacuole evaluation alone. 248 infertile patients from our assisted reproductive technology (ART) Center were retrospectively selected and split into three PIT score subgroups (patients with ≤8% (score I), 9 to 15% (score II) and ≥16% normal spermatozoa (score III)) based on the correlation between PIT results and each ART technique outcome. The choice of one or another of these ART techniques had been made according to the usual clinico-biological criteria. RESULTS: Clinical outcomes for each of the three PIT subgroups were compared individually for the different ART techniques. For ICSI, the effect of the PIT score subgroup was significant for clinical pregnancies (p = 0.0054) and presented a trend for live births (p = 0.0614). Miscarriage rates of IVF attempts were statistically different depending on the PIT score (p = 0.0348). Furthermore, the odds ratios of clinical pregnancy rates were significantly different according to PIT score subgroup when comparing ICSI vs. IMSI or IVF vs. ICSI attempts. DISCUSSION: IMSI appears to be recommended when sperm belongs to PIT score I, ICSI when it belongs to PIT score II and IVF or IUI when sperm is of PIT score III quality in selected infertile couples. The lack of statistical power in these PIT subgroups means that we must remain cautious in interpreting results. CONCLUSION: Our results support the interest of this simplified test for certain couples with normal/subnormal sperm to help choose the most efficient ART technique, even as first-line treatment.
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Infertilidade Masculina , Injeções de Esperma Intracitoplásmicas , Espermatozoides , Humanos , Masculino , Gravidez , Feminino , Injeções de Esperma Intracitoplásmicas/métodos , Infertilidade Masculina/terapia , Infertilidade Masculina/diagnóstico , Adulto , Análise do Sêmen/métodos , Taxa de Gravidez , Estudos Retrospectivos , Fertilização in vitro/métodosAssuntos
Bacteriúria , Vaccinium macrocarpon , Cápsulas , Infecção Hospitalar , Humanos , FitoterapiaRESUMO
We report the case of a 31-year-old patient on chronic hemodialysis for 17 years, after two failed kidney grafts, presently on daily home hemodialysis. She underwent follicle puncture for oocyte retrieval in the context of an in vitro fertilization program. This procedure was complicated by hemoperitoneum, requiring transfusion of 2 units of packed red blood cells and 2 units of fresh-frozen plasma, as well as an emergency laparoscopy to drain the hemoperitoneum and perform local hemostasis of the ovarian bleeding. This complication occurred following the patient's routine hemodialysis session, performed with the usual systemic anticoagulation with unfractionated heparin. The evolution was favorable and there was no recurrence of bleeding or sequelae. A later hematology workup did not reveal any pathology of hemostasis that might have favored bleeding. This case may underline how, even though assisted reproductive procedures are increasingly performed in patients on dialysis, special care should be taken when these procedures are performed in this fragile population.
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Hemoperitônio , Heparina , Feminino , Humanos , Hemoperitônio/etiologia , Hemoperitônio/terapia , Diálise Renal/efeitos adversos , Diálise Renal/métodos , Oócitos , Punções/efeitos adversosRESUMO
The main aim of the study was to evaluate severe post-operative complications following deep endometriosis surgery in a tertiary referral centre. This is a retrospective cohort study that included women who had surgery for deep infiltrating endometriosis between 1st January 2013 and 31st December 2019. Endometriosis was diagnosed based on clinical, imaging and histological parameters. We evaluated the rates of post-operative complications, potential risk factors for such complications and postoperative pregnancy rates. A total of 165 patients were included in the final analysis. The median follow-up was 63 (25-106) months. Thirty-seven patients (22.42%) had hysterectomy, 60 (36.81%) had ureterolysis and 44 (26.67%) had colorectal surgery. The overall and severe rates of post-operative complications were 16.20% (n = 23) and 2.42% (n = 4) respectively. Of the variables assessed, operative time and age were the only statistically significant risk factor for complications on multivariate analysis. Among women operated on for infertility, 34.5% (n = 20/58) got pregnant following surgery with 30% of these spontaneously. This study demonstrates acceptable overall and severe post-operative complications and pregnancy rates after deep endometriosis surgery. This information should help clinicians when counselling women to enable them making an informed choice about their management.
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Procedimentos Cirúrgicos do Sistema Digestório , Endometriose , Infertilidade Feminina , Laparoscopia , Gravidez , Humanos , Feminino , Endometriose/patologia , Estudos Retrospectivos , Taxa de Gravidez , Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Infertilidade Feminina/etiologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Laparoscopia/métodos , Resultado do TratamentoRESUMO
Progesterone plays a key role in implantation. Several studies reported that lower luteal progesterone levels might be related to decreased chances of pregnancy. This systematic review was conducted using appropriate key words, on MEDLINE, EMBASE, and the Cochrane Library, from 1990 up to March 2021 to assess if luteal serum progesterone levels are associated with ongoing pregnancy (OP) and live birth (LB) rates (primary outcomes) and miscarriage rate (secondary outcome), according to the number of corpora lutea (CLs). Overall 2,632 non-duplicate records were identified, of which 32 relevant studies were available for quantitative analysis. In artificial cycles with no CL, OP and LB rates were significantly decreased when the luteal progesterone level falls below a certain threshold (risk ratio [RR] 0.72; 95% confidence interval [CI] 0.62-0.84 and 0.73; 95% CI 0.59-0.90, respectively), while the miscarriage rate was increased (RR 1.48; 95% CI 1.17-1.86). In stimulated cycles with several CLs, the mean luteal progesterone level in the no OP and no LB groups was significantly lower than in the OP and LB groups [difference in means 68.8 (95% CI 45.6-92.0) and 272.4 (95% CI 10.8-533.9), ng/ml, respectively]. Monitoring luteal serum progesterone levels could help in individualizing progesterone administration to enhance OP and LB rates, especially in cycles without corpus luteum. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=139019, identifier 139019.
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Aborto Espontâneo , Progesterona , Coeficiente de Natalidade , Corpo Lúteo , Feminino , Humanos , Fase Luteal , Gravidez , Taxa de GravidezRESUMO
BACKGROUND: Surgically retrieved sperm samples and Intra Cytoplasmic Sperm Injection are indicated when we face severe sperm abnormalities such as azoospermia. The objective of this study was to assess the rates of clinical pregnancies and live births with sperm from testicular biopsies. DESIGN: This was a retrospective descriptive study of all Intra Cytoplasmic Sperm Injection (ICSI) cycles performed with surgically retrieved sperm at the Nîmes University Hospital from January 1st, 2015 to December 31st, 2018. The main outcome was the clinical pregnancy rate. The secondary outcomes were the fertilization rate, the implantation rate and the live birth rate. RESULTS: In all, 99 couples were treated at our center during this period and 164 ICSI cycles using surgically-collected sperm were performed. The men were 34.7 ± 7.4 years old on average at the time of undergoing testicular biopsy and the women were 32.15 ± 5.07 years at the time of ICSI. Out of 127 fresh embryo transfers, we observed 47 clinical pregnancies (37 %) and 45 live births (35.4 %). The average fertilization rate was 45 % and the implantation rate was 23.7 %. Among these infertile couples, 53 % obtained at least one clinical pregnancy and 42 % at least one live birth. CONCLUSION: Testicular sperm extraction combined with ICSI is indicated in cases of male infertility linked with azoospermia or severe semen alteration. This technique offers couples a marvelous opportunity to have children with their own gametes.
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Nascido Vivo , Taxa de Gravidez , Injeções de Esperma Intracitoplásmicas , Recuperação Espermática , Adulto , Biópsia , Feminino , Humanos , Masculino , Gravidez , Estudos Retrospectivos , Testículo/patologiaRESUMO
Sexual dysfunction is one of the symptoms associated with pelvic organ prolapse (POP) that motivates women to seek medical help. Women with POP are likely to restrict sexual activity owing to a perceived of loss of attractiveness and fear of incontinence. Conservative (pelvic floor muscles training or pessary) or surgical management (transabdominally or transvaginally) can be offered to treat POP but questions remain regarding sexual outcome. Despite the usual improvement in sexual function after surgery, a risk of de novo dyspareunia exists irrespective of the procedure used with slightly increased risk after transvaginal repair. Preoperative patient counselling, ideally with a cross-disciplinary approach is an important part of management of POP.
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Prolapso de Órgão Pélvico/complicações , Disfunções Sexuais Fisiológicas/etiologia , Feminino , Humanos , Prolapso de Órgão Pélvico/terapia , Disfunções Sexuais Fisiológicas/terapia , Resultado do TratamentoRESUMO
OBJECTIVE: To evaluate fertility after robot-assisted laparoscopic myomectomy (RALM) in terms of pregnancy rates, and obstetrical outcomes. PATIENTS: This is a retrospective cohort of RALM performed for symptomatic leiomyomas among women who want to conceive. Medical data were retrospectively reviewed. An office hysteroscopy was prescribed 3 months after the surgery. RESULTS: Fifty-three patients were included. The mean number of myomas was 2 ± 1.5 with a mean size of 69 ± 17.7 mm. A breach of the cavity was noticed in 15.1% of the cases. Two cases of intrauterine adhesions were diagnosed and treated during the post-operative office hysteroscopy (5.7%). Clinical pregnancy rates were 52.8% with a live birth rate of 41.5% in patients desiring pregnancy. A caesarean section was performed in 17 cases (70.8%). No case of uterine rupture was reported. CONCLUSION: More than half of the patients became pregnant after RALM. A low rate of obstetrical complications was reported, with no uterine ruptures, highlighting the promise of this technique for infertile patients.
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Fertilidade , Complicações na Gravidez/epidemiologia , Taxa de Gravidez , Procedimentos Cirúrgicos Robóticos , Miomectomia Uterina , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Gravidez , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Miomectomia Uterina/efeitos adversosRESUMO
BACKGROUND: A worldwide increase in the prevalence of obesity has been observed in the past three decades, particularly in women of reproductive age. Female obesity has been clearly associated with impaired spontaneous fertility, as well as adverse pregnancy outcomes. Increasing evidence in the literature shows that obesity also contributes to adverse clinical outcomes following in vitro fertilization (IVF) procedures. However, the heterogeneity of the available studies in terms of populations, group definition and outcomes prevents drawing firm conclusions. A previous meta-analysis published in 2011 identified a marginal but significant negative effect of increased female body mass index (BMI) on IVF results, but numerous studies have been published since then, including large cohort studies from national registries, highlighting the need for an updated review and meta-analysis. OBJECTIVE AND RATIONALE: Our systematic review and meta-analysis of the available literature aims to evaluate the association of female obesity with the probability of live birth following IVF. Subgroup analyses according to ovulatory status, oocyte origin, fresh or frozen-embryo transfer and cycle rank were performed. SEARCH METHODS: A systematic review was performed using the following key words: ('obesity', 'body mass index', 'live birth', 'IVF', 'ICSI'). Searches were conducted in MEDLINE, EMBASE, Cochrane Library, Eudract and clinicaltrial.gov from 01 January 2007 to 30 November 2017. Study selection was based on title and abstract. Full texts of potentially relevant articles were retrieved and assessed for inclusion by two reviewers. Subsequently, quality was assessed using the Newcastle-Ottawa Quality Assessment Scales for patient selection, comparability and assessment of outcomes. Two independent reviewers carried out study selection and data extraction according to Cochrane methods. Random-effect meta-analysis was performed using Review Manager software on all data (overall analysis), followed by subgroup analyses. OUTCOMES: A total of 21 studies were included in the meta-analysis. A decreased probability of live birth following IVF was observed in obese (BMI ≥ 30 kg/m2) women when compared with normal weight (BMI 18.5-24.9 kg/m2) women: risk ratio (RR) (95% CI) 0.85 (0.82-0.87). Subgroups analyses demonstrated that prognosis was poorer when obesity was associated with polycystic ovary syndrome, while the oocyte origin (donor or non-donor) did not modify the overall interpretation. WIDER IMPLICATIONS: Our meta-analysis clearly demonstrates that female obesity negatively and significantly impacts live birth rates following IVF. Whether weight loss can reverse this deleterious effect through lifestyle modifications or bariatric surgery should be further evaluated.
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Fertilização in vitro/estatística & dados numéricos , Nascido Vivo/epidemiologia , Obesidade/epidemiologia , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Coeficiente de Natalidade , Transferência Embrionária/métodos , Transferência Embrionária/estatística & dados numéricos , Feminino , Fertilização in vitro/métodos , Humanos , Recém-Nascido , Masculino , Obesidade/complicações , Gravidez , Complicações na Gravidez/terapia , Taxa de GravidezRESUMO
The objective of our observational prospective study was to investigate the severity and prevalence of urinary and pelvic floor disorders in gynecologic cancer survivors. All patients surviving gynecological cancer in the region as well as women receiving invitations to attend breast-screening checkups as the control population were asked to fill-in questionnaires assessing pelvic prolapse symptoms (PFDI-20, Wexner) and associated quality of life (PFIQ-7). Eighty-nine women were included in the cancer survivor group and 1088 in the control group. Pelvic floor symptoms (PFDI-20 questionnaire) were significantly worse in cancer survivors than in control women (score: 33.3 [14.6-74.1] vs. 20 [4.2-50.0], p = 0.0003). Urge incontinence was significantly worse in cancer survivors in both univariable (ORb = 2.061 [95% CI = 1.284-3.309], p = 0.0027) and multivariable analyses (ORa = 1.672 [95% CI = 1.014-2.758], p = 0.0442), as was fecal incontinence in univariable (ORb = 3.836 [95% CI = 1.710-8.602], p = 0.0011) and in multivariable (ORa = 3.862 [95% CI = 1.657-9.001], p = 0.0018) analyses. Women with benign hysterectomies had poorer quality of life and increased pelvic floor disorders compared to women with no history of surgery. Survivors of gynecological cancer experience significantly more pelvic floor symptoms and an associated reduction in quality of life.
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Sobreviventes de Câncer , Neoplasias dos Genitais Femininos/epidemiologia , Distúrbios do Assoalho Pélvico , Prolapso de Órgão Pélvico , Qualidade de Vida , Inquéritos e Questionários , Idoso , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Distúrbios do Assoalho Pélvico/epidemiologia , Distúrbios do Assoalho Pélvico/fisiopatologia , Prolapso de Órgão Pélvico/epidemiologia , Prolapso de Órgão Pélvico/fisiopatologia , Estudos ProspectivosRESUMO
Intrauterine adhesions lead to partial or complete obliteration of the uterine cavity and have life-changing consequences for women. The leading cause of adhesions is believed to be loss of stroma resulting from trauma to the endometrium after surgery. Adhesions are formed when lost stroma is replaced by fibrous tissue that join the uterine walls. Few effective intrauterine anti-adhesion barriers for gynecological surgery exist. We designed a degradable anti-adhesion medical device prototype to prevent adhesion formation and recurrence and restore uterine morphology. We focused on ideal degradation time for complete uterine re-epithelialization for optimal anti-adhesion effect and clinical usability. We developed a triblock copolymer prototype [poly(lactide) combined with high molecular mass poly(ethylene oxide)]. Comparative pre-clinical studies demonstrated in vivo anti-adhesion efficacy. Ease of introduction and optimal deployment in a human uterus confirmed clinical usability. This article provides preliminary data to develop an intrauterine medical device and conduct a clinical trial.
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Desenho de Equipamento , Aderências Teciduais/prevenção & controle , Doenças Uterinas/metabolismo , Útero/patologia , Útero/cirurgia , Adulto , Animais , Adesão Celular , Colágeno , Endométrio/patologia , Feminino , Humanos , Técnicas In Vitro , Espectroscopia de Ressonância Magnética , Poliésteres/química , Polietilenoglicóis/química , Distribuição Aleatória , Ratos , Ratos Wistar , Recidiva , ViscosidadeRESUMO
BACKGROUND: Peritoneal adhesions are a serious surgical postoperative complication. The aim of this study is to investigate, in a rat model, the anti-adhesive effects of a bioabsorbable film of polymer combining polyethylene glycol and polylactic acid. MATERIALS AND METHODS: Sixty-three animals were randomized into five groups according to the anti-adhesion treatment: Hyalobarrier®, Seprafilm®, Polymer A (PA), Polymer B (PB), and control. The rats were euthanized on days 5 and 12 to evaluate the extent, severity and degree of adhesions and histopathological changes. Three animals were euthanized at day 2 in PA, PB and control groups to observe the in vivo elimination. RESULTS: Macroscopic adhesion formation was significantly lower in the PA group than in the control group at day 5 (median adhesion score 0±0 vs 9.6 ±0.5 p = 0.002) and at day 12 (0±0 vs 7.3±4 p = 0.02). Furthermore, median adhesion score at day 5 was significantly lower in the PA group than in the Seprafilm group (0±0 vs 4.2± 3.9 p = 0.03). Residence time of PA seems longer than PB. CONCLUSION: The PA bioabsorbable film seems efficient in preventing the formation of peritoneal adhesions.
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Plásticos Biodegradáveis/farmacologia , Membranas Artificiais , Poliésteres/farmacologia , Polietilenoglicóis/farmacologia , Aderências Teciduais/prevenção & controle , Animais , Modelos Animais de Doenças , Feminino , Peritônio/patologia , Peritônio/cirurgia , Ratos , Aderências Teciduais/patologiaRESUMO
OBJECTIVES: Synthetic mesh surgery for both abdominal and urogenital hernia repair is often unsatisfactory in the long-term due to postoperative complications. We hypothesized that a semi-degradable mesh hybrid may provide more appropriate biocompatibility with comparable mechanical properties. The aim was to compare its in vivo biocompatibility with a commercial polypropylene (PP) mesh. METHODS: 72 rats were randomly allocated to either our new composite mesh (monofilament PP mesh knitted with polylactic-acid-fibers (PLA)) or to a commercially available PP mesh that was used as a control. 15, 90, and 180 days after implantation into the rat abdomen mesh tissue complexes were analysed for erosion, contraction, foreign body reaction, tissue integration and biomechanical properties. RESULTS: No differences were seen in regard to clinical parameters including erosion, contraction or infection rates between the two groups. Biomechanical properties including breaking load, stiffness and deformation did not show any significant differences between the different materials at any timepoint. Macrophage staining did not reveal any significant differences between the two groups or between timepoints either. In regard to collagen I there was significantly less collagen I in the PP group compared to the PP/ PLA group at day 180. Collagen III did not show any significant differences at any timepoint between the two groups. CONCLUSION: A PP/PLA hybrid mesh, leaving a low amount of PP after PLA degradation seems to have comparable biomechanical properties like PP at 180 days due to enhanced collagen production without significant differences in erosion, contraction, herniation or infection rates.
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Fáscia/patologia , Poliésteres , Polipropilenos , Telas Cirúrgicas , Animais , Materiais Biocompatíveis , Fenômenos Biomecânicos , Colágeno/metabolismo , Feminino , Hérnia Abdominal/cirurgia , Implantes Experimentais , Masculino , Teste de Materiais , Complicações Pós-Operatórias , Ratos , Resultado do TratamentoRESUMO
We investigated whether implementation of a routine catheterization procedure in labor improves covert postpartum urinary retention (cPUR) rates. We conducted a prospective before-after study. 121 women admitted to delivery room in the observational group, and 82 in the intervention group, in a tertiary university hospital in Southern France were included. All patients in the intervention group were systematically catheterized 2 hours after delivery. cPUR was screened for in both groups. The primary end-point was cPUR (post-void residual bladder volume >150 ml when voided volume is >150 mL). The rate of cPUR decreased from 50% (60 out of 121 patients) in the observational group to 17% (14/82) in the intervention group (OR = 0.21; 95% Confidence Interval [0.13;0.58]; p < 0.001). Similarly, in the subgroup of patients who underwent instrumental delivery, the rate of cPUR was lower in the intervention group (18%, 2/11) than in the observational group (65%, 15/23) (p = 0.02). Systematic intermittent bladder catheterization immediately postpartum could decrease cPUR. Further studies are necessary to assess the long-term outcomes and improve understanding of postpartum voiding dysfunction.
Assuntos
Cateterismo Urinário/métodos , Retenção Urinária/terapia , Adulto , Estudos Controlados Antes e Depois , Salas de Parto , Parto Obstétrico , Feminino , França , Humanos , Período Pós-Parto , Gravidez , Estudos Prospectivos , Bexiga Urinária/patologiaRESUMO
BACKGROUND: Hysterectomy is the most frequent surgery done with robotic assistance in the world and has been widely studied since its emergence. The surgical outcomes of the robotic hysterectomy are similar to those obtained with other minimally invasive hysterectomy techniques (laparoscopic and vaginal) and appear as a promising surgical technique in gynecology surgery. The aim of this study was to observe the learning curve of robot-assisted hysterectomy in a French surgical center, and was to evaluate the impact of the surgical mentoring. METHODS: We retrospectively collected the data from the files of the robot-assisted hysterectomies with the Da Vinci® Surgical System performed between March 2010 and June 2014 at the Foch hospital in Suresnes (France). We first studied the operative time according to the number of cases, independently of the surgeon to determine two periods: the initial learning phase (Phase 1) and the control of surgical skills phase (Phase 2). The phase was defined by mastering the basic surgical tasks. Secondarily, we compared these two periods for operative time, blood losses, body mass index (BMI), days of hospitalizations, and uterine weight. We, finally, studied the difference of the learning curve between an experimented surgeon (S1) who practiced first the robot-assisted hysterectomies and a less experimented surgeon (S2) who first assisted S1 and then operated on his own patients. RESULTS: A total of 154 robot-assisted hysterectomies were analyzed. Twenty procedures were necessary to access to the control of surgical skills phase. There was a significant decrease of the operative time between the learning phase (156.8 min) compared to the control of surgical skills phase (125.8 min, p = 0.003). No difference between these two periods for blood losses, BMI, days of hospitalizations and uterine weight was demonstrated. The learning curve of S1 showed 20 procedures to master the robot-assisted hysterectomies with a significant decrease of the operative time, while the learning curve of S2 showed no improvement in operative time with respect to case number. CONCLUSION: Twenty robot-assisted hysterectomies are necessary to achieve control of surgical skills. The companionship to learn robotic surgery seems also promising, by improving the learning phase for this surgical technique.