Objective To systematically review the effectiveness and safety of different laparoscopic surgeries for ovarian endometrioma (OE). Methods Such databases as The Cochrane Library (Issue 3, 2011), MEDLINE (1966 to November 2011), EMbase (1980 to November 2011), CNKI (1980 to November 2011), CBM (1980 to November 2011) and WanFang Data (1978 to November 2011) were searched on computer, and the relevant references of the included literature were also retrieved manually to collect the randomized controlled trials (RCTs) about laparoscopic cystectomy vs. laparoscopic coagulation for OE. According to the inclusion and exclusion criteria, two reviewers independently screened literature, extracted data and assessed quality. Then RevMan 5.1 software was used for meta-analysis. Results A total of 5 RCTs were included. The results of meta-analysis showed that, laparoscopic cystectomy for OE could reduce the reocurrence rates of dysmenorrhoea (RR=0.29, 95%CI 0.15 to 0.55, P=0.000 2), dyspareunia (RR=0.27, 95% CI 0.09 to 0.77, P=0.01) and non-menstrual pelvic pain (RR=0.19, 95% CI 0.05 to 0.76, P=0.02), decrease 1-year (RR=0.33, 95%CI 0.15 to 0.74, P=0.007) and 2-year (RR=0.49, 95%CI 0.26 to 0.95, P=0.03) postoperative reoccurence of OE, and lower the risk of short-term secondary operation (RR=0.25, 95%CI 0.07 to 0.85, P=0.03). However, it didn’t increase the 12-month (RR=2.82, 95%CI 1.44 to 5.50, P=0.002) and 24-month (RR=2.62, 95%CI 1.47 to 4.68, P=0.001) postoperative spontaneous pregnancy rates (SPR). In addition, although laparoscopic coagulation was superior to laparoscopic cystectomy in the 6-month postoperative ovarian reserve function (ORF), there was no significant difference in the 5-year postoperative ORF between the two groups (WMD=0.27, 95%CI −0.18 to 0.73, P=0.24). Conclusion Laparoscopic cystectomy for OE can reduce the reoccurence of dysmenorrhoea, dyspareunia, non-menstrual pelvic pain and endometriosis, decrease the risk of short-term secondary operation, and increase the postoperative SPR in women who had been diagnosed as infertility. Because of the quantity limitation of present clinical trials, this conclusion requires to be further proved by performing more high quality RCTs.
Objective To systematically evaluate the correlation between endometriosis (EM) in Chinese women and Xba I polymorphism in intron-1 of estrogen receptor α (ER-α) gene. Methods Such databases as PubMed, MEDLINE, The Cochrane Library (Issue 3, 2012), VIP, CBM, WanFang Data and CNKI were searched to collect case-control studies about the correlation between EM and Xba I polymorphism in intron-1 of ER-α gene. The retrieval time was from 1980 to 2012. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted the data and assessed the quality, and then the meta-analysis was conducted by using RevMan 5.0 and Stata 12.0 software. Results A total of 7 studies involving 676 EM patients and 688 healthy volunteers were included. The results of meta-analyses showed that Chinese women with X/X genotype had similar risk of EM compared to those with x/x genotype (OR=0.95, 95%CI 0.58 to 1.54, P=0.82) or X/x genotype (OR=0.73, 95%CI 0.44 to 1.20, P=0.22). The allele X also showed similar risk of EM compared to the allele x (OR=1.11, 95%CI 0.93 to 1.33, P=0.25). Conclusion At present, it has not yet been found that the incidence of EM in Chinese women is related to the Xba I polymorphism in intron-1 of ER-α gene as well as the allele X. For the quantity and quality limitation of the included studies, this conclusion has to be proved by more studies.
Objective To systematically assess the correlation between smoking and the risk of endometriosis, so as to offer scientific basis to health education and preventing decision. Methods A literature search was performed in The Cochrane Library, Pubmed, Embase, CBM, CNKI and Wanfang database to collect the case control studies on the correlation between smoking and endometriosis. Two reviewers independently screened the literatures according to the inclusion and exclusion criteria, extracted the data, assessed the quality, and then conducted Meta-analyses on the 13 included RCTs by using RevMan 5.0 software, with calculation of the OR value and 95%CI. Results A total of 13 case control studies involving 14260 cases were included, of which 1900 ones were endometriosis. The quality assessment indicated that 2 studies were in quality of Level A, 4 were Level B, 7 were Level C, totally meant low quality. Meta-analyses showed that compared with non-smokers, there was no increasing possibility of endometriosis in smokers (OR= 0.91, 95%CI 0.82 to 1.02). The geographical subgroup analyses showed there was no significant difference in the incidence of endometriosis between the non-smokers and smokers in North America (OR=0.96, 95%CI 0.84 to 1.08), but a significant difference was found between non-smokers and smokers in Europe (OR=0.72, 95%CI 0.54 to 0.97). Conclusion There is no causative relationship between smoking and incidence of endometriosis. However, more high-quality trials are expected for further study because of the heterogeneity and poor quality of the current included studies.
①关于药物引起的卵巢抑制:1篇系统评价发现,使用卵巢抑制药治疗子宫内膜异位症与安慰剂或达那唑相比,妊娠率无明显差异.该评价还发现,卵巢抑制药引起的不良反应包括体重增加、潮热和骨质疏松症,达那唑可能引起剂量相关的体重增加和雄激素样作用. ②宫腔内人工授精+促性腺激素:1个RCT发现,宫腔内人工授精+促性腺激素治疗与不治疗相比,可明显提高活产率.第2个RCT发现,期待疗法与宫腔内人工授精+垂体降调节+促性腺激素治疗后的分娩率无明显差异.第3个RCT发现,宫腔内人工授精+促性腺激素治疗与单用宫腔内人工授精相比,仅明显提高妊娠率. ③体外受精:我们没有找到关于子宫内膜异位症引起不孕妇女接受受精体外治疗的RCT. ④手术治疗:两个比较腹腔镜手术与诊断性腹腔镜的RCT发现,在妊娠率和活产率方面结论不一.
Objective To assess the efficacy and safety of Chinese medicinal herbs for treating endometriosis. Methods We searched Cochrane Library, MEDLINE, EMBASE, CBM (from establishment to 2003). Randomized controlled trials (RCTs) and quasi-randomized controlled trials of patients with endometriosis were included. The quality of included studies such as randomization, blinding, allocation concealment and loss of follow up were evaluated and meta-analysis was performed by RevMan 4.3 software. Results Ten RCTs or quasi-RCTs involving 1 120 patients were included. Because of different therapies in the treatment and control groups, the results of outcome were described separately. Most of included studies suggested that the effects of traditional Chinese medicine (TCM) on general effect, pregnancy rate improvement and alleviating dysmenorrhoea were similar to Danazol or Tamoxifen, only a few studies showed better effects. There was no evidence to support that TCM was more effective than western medicine in reducing the size of endometriotic cysts. Only one study mentioned the recurrence rate and showed that TCM enema had lower recurrence rate than oral Tamoxifen with OR 0.17, 95%CI 0.04 to 0.67. Five studies mentioned adverse reactions and showed TCM had fewer adverse effects than western medicine. Conclusions Chinese medicinal herbs are effective in treating endometriosis with fewer adverse effects. The evidence is not b enough because of low quality of the included studies. Therefore, more high quality randomized controlled trials are required.
ObjectiveTo discuss the clinical characteristics, treatment and prevention of abdominal wall endometriosis (AWE). MethodsA retrospective analysis of 295 cases of AWE from February 2007 to August 2011 in our hospital was performed. ResultsAll of the patients had abdominal operations before and 99% of them had a history of caesarean section. The mean age of the patients was (31.55±4.52) years old. The average size of the mass was (2.66±1.12) cm, significantly larger than the estimation of ultrasonography before operation which was (1.91±0.83) cm (P<0.001). No relapse was discovered five months to three years after the operation. ConclusionIt is easy to diagnose abdominal wall endometriosis through medical history, clinical characteristics, physical signs and ultrasonic assessment. The prevention of AWE is very important. Operation is still the best treatment for AWE.
ObjectiveTo investigate the effect of laparoscopic surgery combined with the following treatment of gonadotropin-releasing hormone agonist (GnRH-a) on the patients with endometriotic infertility and the value of endometriosis fertility index (EFI) system on forecasting the pregnancy outcome. MethodsFrom January 2005 to July 2011, the clinical data of 15 patients with endometriotic infertility patients were analyzed retrospectively. All the patients underwent laparoscopic surgery, and the effect was evaluated according to the endometriosis fertility index (EFI). Then all the patients were divided randomly into two groups on the basis of the different assisted treatment after the laparoscopic surgery:the control group (without any other therapy) and the GnRh-a group (combined with GnRH-a). Eventually, the pregnant rates were calculated respectively in the different groups or according to the different EFI. ResultsAt last, 103 cases finished the follow-up. The pregnancy rate in the control group after 6 months, 1 year and 3 years therapy were 12.5%, 31.2%, and 41.7%, respectively; while in the GnRh-a group were 0%, 16.3%, and 40.0%, respectively. There were no difference between the two groups after the 1 year and 3 years therapy (P>0.05). Besides, all of the 55 cases in the GnRh-a group had side-effects, but no severe adverse effect was encountered. All the side-effects were disappeared after stopping the treatment. The pregnancy rate of the patients with the EFI score of 8-10 was respectively 31.3% 1 year and 62.5% 3 years after the treatment. However, the pregnancy rate of the patients with the EFI score of 5-7 was respectively 15.2% 1 year and 26.0% 3 years after the treatment. There were only 9 patients with the EFI score of 0-4, and all of them were not pregnant. The EFI score had positive correlation with the pregnancy rate 1 year and 3 years after the treatment (rs=0.204, P=0.039; rs=0.437, P<0.001). ConclusionThe treatment of GnRh-a after the laparoscopic surgery can not only increase the rate of the pregnancy, but also delay the pregnancy occasion and increase the occurrence of the side-effects. The EFI may be valuable for forecasting the rate of pregnancy in patients with endometriotic infertility. The patients with EFI score higher than 8 may expect the pregnancy, while the ones with below 7 probably have much lower rate of natural pregnancy rate.
ObjectiveTo systematically review the effectiveness and safety of laparoscopy with postoperative gonadotropin releasing hormone agonist (GnRH-a) versus laparoscopy alone for endometriosis. MethodsRandomized controlled trials (RCTs) on laparoscopy with postopertative GnRH-a versus laparoscopy alone in treatment of endometriosis were retrieved in the following databases:the Cochrane Library (Issue 3, 2013), PubMed, EMbase, WanFang Data, CNKI, and CBM from inception to February, 2013. According to the inclusion and exclusion criteria, the literature were screened, the data was extracted and the methodological quality of the included studies was also assessed by two reviewers independently. Then, meta-analysis was performed using RevMan 5.1.7 software. ResultsA total of 15 RCTs involving 1 761 patients were included. There were statistically significant differences between the laparoscopy with postoperative GnRH-a group and the laparoscopy alone group in the following 4 aspects:the symptom relief rate (RR=1.24, 95%CI 1.16 to 1.33, P < 0.000 01), the recurrence of lesion (RR=0.35, 95%CI 0.24 to 0.51, P < 0.000 01), the recurrence of pain (RR=0.70, 95%CI 0.53 to 0.92, P=0.01), and the pregnancy rate (RR=1.43, 95%CI 1.25 to 1.65, P < 0.000 01). ConclusionLaparoscopy postoperative GnRH-a for endometriosis can enhance the symptom relief rate, reduce the recurrence of lesion and the recurrence of pain, and increase the pregnancy rate. But because of the limitation of the quality of the included studies and publication bias, the above conclusion should be verified by conducting more high quality RCTs.
ObjectiveTo evaluate the association between tumor necrosis factor alpha (TNF-α) gene -308G/A polymorphism and the risk of endometriosis (EM). MethodsDatabases including PubMed, EMbase, CBM, CNKI, VIP, and WanFang Data were searched to collect case-control studies about the association between TNF-α gene -308G/A polymorphism and the risk of EM from inception to October 2014. Two reviewers independently screened literature, extracted data, and assessed the risk of bias of included studies. Then Meta-analysis was performed by using Stata 12.0 software. ResultsA total of seven case-control studies were included, which involved 687 patients and 877 controls. The results of meta-analysis showed that, AA genotype carriers presented 2.06-fold (OR=2.06, 95%CI 1.10 to 3.83, P=0.02) and 1.94-fold (OR=1.94, 95%CI 1.18 to 3.18, P<0.01) higher risk of EM than GG genotype carriers and AG+GG genotype carriers, respectively; but sensitivity analysis showed that the robustness of these results was unstable. No statistical significance was found in the allele model, co-dominant model, and dominant model (A vs. G: OR=1.37, 95%CI 0.87 to 2.17, P=0.18; AG vs. GG: OR=1.09, 95%CI 0.77 to 1.53, P=0.63; AA+AG vs. GG: OR=1.29, 95%CI 0.95 to 1.77, P=0.11). While excluding studies that controls were not in HWE, no significant association was observed in these five genetic models; and no significant association was found in the results of subgroup analysis by ethnicity. ConclusionThe AA genotype of TNF-α gene -308G/A polymorphism might contribute to the risk of EM, but the association between other genotypes and EM susceptibility is unclear. In addition, due to the limited quantity and quality of included studies, more high quality studies are needed to verify the above conclusion.
Endometriosis (EM) is a common benign gynecological disease with complex pathogenesis and lack of unified understanding. In recent years, the theory of stem/progenitor cells has gradually been recognized by scholars. The presence of stem/progenitor cells in the endometrium and researchers’ understanding of stem/progenitor cell specific markers has been further developed, which is of great significance for sorting stem/progenitor cells and further elucidating their roles in the pathogenesis of EM. At present, more endometrial stem cell signaling pathways have been studied including Wnt, Hedgehog, Notch, phosphatidylinositol-3-kinase/protein kinase B, Smad/connective tissue growth factor, CXCL12/CXCR4, etc. These signaling pathways can regulate stem cell involvement in the pathogenesis of EM. Exploring how signaling pathways to regulate stem cell involvement in the pathogenesis of EM can help elucidate the specific pathogenesis of EM and provide new directions for its treatment. This paper will summarize them.