Studies

Studies
  • 文章类型: Journal Article
    背景:非小细胞肺癌(NSCLC)仍然是一个重大的全球健康挑战,高死亡率和有限的治疗选择。肿瘤疫苗已经成为一种潜在的治疗方法,旨在刺激免疫系统特异性靶向肿瘤细胞。
    方法:这项研究筛选了截至2023年7月31日在ClinicalTrials.gov注册的283项临床试验。排除不符合纳入标准的数据后,共评估了108项试验.有关注册号码的数据,研究题目,研究现状,疫苗类型,研究结果,条件,干预措施,结果衡量标准,赞助商,合作者,药物靶点,阶段,招生,开始日期,提取并分析了完成日期和位置。
    结果:近年来非小细胞肺癌的疫苗临床试验数量持续增加,其中大部分是在美国进行的。大多数临床试验处于从I期到II期的阶段。肽基疫苗占比最大。其他包括肿瘤细胞疫苗,DNA/RNA疫苗,病毒载体疫苗,和DC疫苗。几种有希望的肿瘤疫苗候选物在早期临床试验中显示出令人鼓舞的结果。然而,肿瘤抗原的异质性和免疫逃逸机制等挑战仍需解决。
    结论:肿瘤疫苗代表了治疗NSCLC的有希望的途径。正在进行的临床试验对于优化疫苗策略和确定最有效的组合至关重要。需要进一步的研究来克服现有的局限性,并将这些有希望的发现转化为临床实践。为非小细胞肺癌患者提供新的希望。
    BACKGROUND: Non-small cell lung cancer (NSCLC) remains a significant global health challenge, with high mortality rates and limited treatment options. Tumor vaccines have emerged as a potential therapeutic approach, aiming to stimulate the immune system to specifically target tumor cells.
    METHODS: This study screened 283 clinical trials registered on ClinicalTrials.gov through July 31, 2023. After excluding data that did not meet the inclusion criteria, a total of 108 trials were assessed. Data on registered number, study title, study status, vaccine types, study results, conditions, interventions, outcome measures, sponsor, collaborators, drug target, phases, enrollment, start date, completion date and locations were extracted and analyzed.
    RESULTS: The number of vaccines clinical trials for NSCLC has continued to increase in recent years, the majority of which were conducted in the United States. Most of the clinical trials were at stages ranging from Phase I to Phase II. Peptide-based vaccines accounted for the largest proportion. Others include tumor cell vaccines, DNA/RNA vaccines, viral vector vaccines, and DC vaccines. Several promising tumor vaccine candidates have shown encouraging results in early-phase clinical trials. However, challenges such as heterogeneity of tumor antigens and immune escape mechanisms still need to be addressed.
    CONCLUSIONS: Tumor vaccines represent a promising avenue in the treatment of NSCLC. Ongoing clinical trials are crucial for optimizing vaccine strategies and identifying the most effective combinations. Further research is needed to overcome existing limitations and translate these promising findings into clinical practice, offering new hope for NSCLC patients.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    生物测定指导从曲霉属培养物中分离螺曲霉酮A。TJ23在2017年通过将苯唑西林最低抑制浓度降低至32倍,证明了苯唑西林对耐甲氧西林金黄色葡萄球菌的有效复敏作用。为了构建这种独特的螺[双环[3.2.2]壬烷-2,1'-环己烷]系统,公开了硝酸铈铵诱导的烯醇甲硅烷基酯的分子内交叉偶联的方案。
    Bioassay-guided isolation of spiroaspertrione A from cultures of Aspergillus sp. TJ23 in 2017 demonstrated potent resensitization of oxacillin against methicillin-resistant Staphylococcus aureus by lowering the oxacillin minimal inhibitory concentration up to 32-fold. To construct this unique spiro[bicyclo[3.2.2]nonane-2,1\'-cyclohexane] system, a protocol for ceric ammonium nitrate-induced intramolecular cross-coupling of silyl enolate is disclosed.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Clinical Trial
    将新型无框宫内节育器的临床表现与TCu380A进行了比较,当今世界上使用最广泛的铜宫内节育器。用原型插入器(Flexigard)进行无框宫内节育器的插入。我们报告了在上海计划生育研究所进行的一项随机比较临床试验的6年结果,作为世卫组织国际多中心临床试验的一部分,涉及200名女性,分别招募使用每个设备。无框宫内节育器的累积6年妊娠率为每100名妇女0.0,TCu380A为3.3。与TCu380A相比,无框宫内节育器因部分驱逐而终止的次数明显减少(每百名妇女0.0和4.3,分别)。完全驱逐,出血,疼痛,出血和疼痛以及其他终止治疗的医疗原因在两种装置之间没有显著差异.TCu380A的每100名妇女六年的净累积延续率为80.8,和83.0的无框宫内节育器。无框宫内节育器和TCu380A都非常有效,安全和可接受的避孕装置,由于低怀孕率(每100名妇女),以及由于驱逐而导致的低终止率,疼痛,出血,出血和疼痛。由于它的锚定,就宫内节育器在子宫腔中的适当保留而言,无框宫内节育器比TCu380A宫内节育器更有效。这也可以解释其较低的故障率。
    The clinical performance of the new Frameless IUD was compared with the TCu380A, the most widely used copper IUD in the world today. Insertions of the Frameless IUD were conducted with a prototype inserter (Flexigard). We report on the 6-year results from a randomized comparative clinical trial conducted at the Shanghai Institute of Planned Parenthood Research, as part of an international multicenter WHO clinical trial, involving 200 women, respectively recruited for use of each device. The cumulative 6-year pregnancy rates were 0.0 per 100 women for the Frameless IUD and 3.3 for TCu380A. Termination due to partial expulsion was significantly less for the Frameless IUD as compared with TCu380A (0.0 and 4.3 per hundred women, respectively). Complete expulsion, bleeding, pain, bleeding and pain and other medical reasons for termination did not differ significantly between the two devices. The net cumulative continuation rates at six years per 100 women were 80.8 for TCu380A, and 83.0 for the Frameless IUD. Both Frameless IUD and TCu380A are highly effective, safe and acceptable contraceptive devices, because of low pregnancy rates (per 100 women), and low termination rates due to expulsion, pain, bleeding, and bleeding and pain. Due to its anchoring, the Frameless IUD is significantly more effective than the TCu380A IUD as regards proper retention of the IUD in the uterine cavity. This may also explain its lower failure rate.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • DOI:
    文章类型: Journal Article
    This study examines the delay between first marriage and first live birth in China among a sample of women who married between 1980 and 1992. Most couples in China only use contraception after the first child is born. Most sample women had their first child within 2 years of marriage. However, there are significant rural-urban differences in the first birth interval, indicating that there was most probably deliberate fertility regulation after marriage among many urban couples. Survival analysis shows that place of residence, level of education, age at first marriage and marriage cohort affect the first birth interval.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Clinical Trial
    进行这项研究是为了评估一种新的和改进的插入器(GyneFix),用于将无框宫内节育器固定在子宫腔中。由于Flexigard插入器的缺点和插入技术的复杂性,因此使用原型插入器(Flexigard)进行的先前研究并未充分显示出新锚固概念的优点。在中国的六个中心,每组约300名妇女中,将GyneFixIUD与TCu380AIUD进行了比较。该研究仅包括女性。这三年的数据,正在进行的研究表明,插入器的缺点已经得到纠正,导致更好的性能和大大降低的失败的插入/排出的无框和锚固装置的比率。GyneFix宫内节育器3年的累计驱逐率为3.0(年率分别为2.67、0.33和0.0),而TCu380A3年的累计驱逐率为7.38(年率分别为4.63、1.76和1.04)。这种差异具有统计学意义。大多数使用锚定宫内节育器的驱逐发生在研究早期,表明锚固技术不当。研究还表明,这两种设备都非常有效。使用GyneFixIUD(3年累积妊娠率0.0)未发生妊娠,而使用TCu380A的一次妊娠(3年累积妊娠率0.34)。GyneFix宫内节育器(8.34)在3年时的总使用相关停药率显着低于TCu380A宫内节育器(14.13),并且与TCu380A宫内节育器相比,GyneFix宫内节育器的延续率更高(90.73vs85.25)。在本研究中,两种装置均未出现穿孔或盆腔炎病例。证明锚固系统的安全性。
    This study was conducted to evaluate a new and improved inserter (GyneFix) for the anchoring of the Frameless IUD in the uterine cavity. Previous studies conducted with a prototype inserter (Flexigard) did not show fully the advantages of the new anchoring concept because of the shortcomings of the Flexigard inserter and the complexity of the insertion technique. The GyneFix IUD was compared with the TCu380A IUD in six centers in China in approximately 300 women in each group. Only parous women were included in the study. The data from this 3-year, ongoing study demonstrate that the shortcomings of the inserter have been corrected, resulting in better performance and a much reduced rate of failed insertion/expulsion of the frameless and anchored device. The cumulative expulsion rate with the GyneFix IUD was 3.0 at 3 years (annual rates 2.67, 0.33, and 0.0, respectively) compared with a cumulative expulsion rate of 7.38 at 3 years with TCu380A (annual rates 4.63, 1.76, and 1.04, respectively). This difference is statistically significant. The majority of the expulsions with the anchored IUD occurred early in the study, indicating improper anchoring technique. The study also shows that both devices are highly efficacious. No pregnancies occurred with the GyneFix IUD (cumulative pregnancy rate 0.0 at 3 years) versus one pregnancy with TCu380A (cumulative pregnancy rate 0.34 at 3 years). The total use-related discontinuation rate at 3 years was significantly lower with the GyneFix IUD (8.34) than with the TCu380A IUD (14.13) and results in a higher rate of continuation with the GyneFix IUD compared to the TCu380A IUD (90.73 vs 85.25). Neither perforations nor pelvic inflammatory disease cases were encountered with either device in this study, demonstrating the safety of the anchoring system.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    本调查的目的是评估更年期中国妇女的避孕状况和性功能。一项横断面研究随机招募了742名绝经前,围绝经期,来自北京的45-55岁自然更年期妇女。75.6%的绝经前妇女和54.2%的围绝经期妇女使用避孕方法。主要方法是宫内节育器和屏障法。女性对方法的选择与性别平等和性活动频率有关。性活动与避孕方法的满意度有关。围绝经期和绝经后妇女对性活动和性高潮的可能性约为绝经前妇女的一半。社会经济地位较高的女性性功能下降的风险较低。宫内节育器是围绝经期妇女最流行和最合适的避孕方法。性功能与妇女对所使用的避孕方法的满意度有关,他们的更年期状态,和他们的社会经济阶层。
    对中国更年期女性的避孕和性行为进行了横断面调查。采用三阶段整群抽样程序,从北京市区随机抽样,抽取45-55岁的女性。样品由742个pre组成,pery-,自然更年期妇女。结果显示,242名绝经前妇女中有75.6%使用了避孕方法,240名围绝经期妇女中有54.2%使用了避孕方法。宫内节育器和屏障方法是使用的主要方法。按插入年龄比较宫内节育器用户,移除,或最后一次临床就诊显示,40岁以上的女性比年轻女性更好地耐受宫内节育器。宫内节育器之所以常用,是因为屏障法(避孕套)会引起阴道干燥甚至疼痛,尤其是中年妇女。社会经济地位较高的女性性功能下降的风险较低。在45-55岁的女性中,较高的教育程度与较低的性功能下降风险相关。由于性教育水平和质量的差异,较高阶层的妇女在几个性变量上与较低阶层的妇女不同,意识,和态度。总之,宫内节育器是围绝经期妇女最流行和最适当的避孕方法,性功能与女性对避孕方法的满意度以及更年期状况和社会经济阶层有关。
    The objective of the present survey was to assess the contraceptive status and sexual function of climacteric Chinese women. One cross-sectional study randomly recruited 742 premenopausal, perimenopausal, and naturally menopausal women aged 45-55 years from Beijing. Contraceptive methods were used by 75.6% of premenopausal and 54.2% of perimenopausal women. The primary methods were the IUD and barrier method. The women\'s choices of methods were related to parity and frequency of sexual activities. Sexual activity was related to the satisfaction of contraceptive methods. Perimenopausal and postmenopausal women were about half as likely to enjoy sexual activity and to experience orgasms than premenopausal women. Women of higher socioeconomic status had a lower risk for decreased sexual functioning. The IUD was the most popular and the most appropriate contraceptive method for perimenopausal women. Sexual function was associated with the women\'s satisfaction with the contraceptive method used, their menopausal status, and their socioeconomic class.
    A cross-sectional survey about contraception and sexuality in climacteric Chinese women was evaluated. Women aged 45-55 years were randomly sampled from the urban area of Beijing using a three-stage cluster sampling procedure. The sample was composed of 742 pre-, peri-, and naturally menopausal women. Results showed that contraceptive methods were used by 75.6% of 242 premenopausal women and 54.2% of 240 perimenopausal women. IUDs and barrier methods were the primary methods used. A comparison of IUD users by age at insertion, removal, or last clinic visit showed that women over age 40 tolerated IUDs better than did younger women. IUDs were commonly used because the barrier method (condom) caused vaginal dryness and even pain, especially among middle-aged women. The women of higher socioeconomic status had a lower risk of decreased sexual functioning. A higher level of educational attainment was associated with a lower risk of decreased sexual functioning among women aged 45-55 years. Women of higher class differed in several sexual variables from those of the lower class due to differences in level and quality of sexual education, awareness, and attitudes. In conclusion, the IUD was the most popular and appropriate method of contraception for perimenopausal women, and sexual function was associated with a woman\'s satisfaction with her contraceptive method together with her menopausal status and socioeconomic class.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    长期使用醋酸甲羟孕酮(DMPA)与骨矿物质密度(BMD)之间的关联一直存在争议,从新西兰的三项病例对照研究中可以看出,泰国,和英国。在目前的BMD病例对照研究中,一组67名5-15岁期间使用DMPA的中国女性与218名未使用任何类固醇激素的相同年龄范围的女性进行了比较.发现DMPA使用者的腰椎BMD(L2-4)显着降低(0.93g/cm2),股骨颈(0.69g/cm2),转子(0.59g/cm2),和沃德三角形(0.58g/cm2),与对照组相比,其相应的BMD值分别为1.03g/cm2、0.83g/cm2、0.71g/cm2和0.78g/cm2(p<0.001)。据估计,L2-4年的平均骨丢失百分比为1.1%,股骨颈为2.3%,转子中的2.4%,沃德三角形中的3.5%。发现L2-4中骨丢失的百分比随着年龄的增长而更加明显。这项研究提供的信息表明,在中国人群中使用DMPA>5年与骨丢失有关,需要一项前瞻性研究来证实这些数据,这与两个病例对照研究不同。
    长期使用醋酸甲羟孕酮(DMPA)对骨密度的影响仍存在争议。本研究比较了从香港(中国)计划生育协会连续招募的67名长期(5年或更长时间)DMPA使用者的骨矿物质密度,以及从香港8个家庭保健服务诊所招募的218名年龄匹配的对照者的骨矿物质密度。平均年龄为42.8岁(范围,DMPA组34-46岁)和40.0岁(范围,34-46岁)。身体质量指数,钙摄入量,两组的吸烟情况相似。DMPA使用的中位持续时间为6年(范围,5-15年)。长期DMPA使用者的骨密度明显低于腰椎对照组(0.93vs.1.03克/平方米。cm),股骨颈(0.69vs.0.83克/平方米。cm),转子(0.59vs.0.71克/平方米。cm),和沃德的三角形(0.58vs.0.78克/平方米。cm)。随着年龄的增长,L2-4中骨丢失的百分比更加明显。对于每年的DMPA使用,骨矿物质密度的降低估计为0.011g/sq。L2-4中的厘米(1.1%),0.0193克/平方米。股骨颈厘米(2.3%),0.0169克/平方米。cm(2.4%)在转子,和0.0277克/平方米。沃德三角形中的厘米(3.5%)。
    The association between long-term use of depot-medroxyprogesterone acetate (DMPA) and bone mineral density (BMD) has been controversial, as seen in three case-control studies in New Zealand, Thailand, and the United Kingdom. In the present case-controlled study of BMD, a group of 67 Chinese women who had used DMPA from 5-15 years was compared with 218 women of the same age range who had not used any steroidal hormones. DMPA users were found to have a significantly lower BMD at lumbar vertebra (L2-4) (0.93 g/cm2), neck of femur (0.69 g/cm2), trochanter (0.59 g/cm2), and Ward\'s triangle (0.58 g/cm2), as compared with the control group, whose corresponding BMD values were 1.03 g/cm2, 0.83 g/cm2, 0.71 g/cm2, and 0.78 g/cm2, respectively (p < 0.001). The average percentage of bone loss per year was estimated to be 1.1% in L2-4, 2.3% in neck of femur, 2.4% in trochanter, and 3.5% in Ward\'s triangle. The percentage of bone loss in L2-4 was found to be more pronounced with age. This study provided information that the use of DMPA in a Chinese group for > 5 years in associated with bone loss, and a prospective study is needed to confirm these data, which are different from two case-control studies.
    The effect of long-term use of depot medroxyprogesterone acetate (DMPA) on bone mineral density remains controversial. The present study compared bone mineral densities in 67 long-term (5 years or more) DMPA users recruited consecutively from the Hong Kong (China) Family Planning Association with those in 218 age-matched controls recruited from 8 family health service clinics in Hong Kong. Mean age was 42.8 years (range, 34-46 years) in the DMPA group and 40.0 years (range, 34-46 years) among controls. Body mass index, calcium intake, and smoking were similar in both groups. The median duration of DMPA use was 6 years (range, 5-15 years). Long-term DMPA users had significantly lower bone mineral densities than controls at the lumbar vertebra (0.93 vs. 1.03 g/sq. cm), neck of femur (0.69 vs. 0.83 g/sq. cm), trochanter (0.59 vs. 0.71 g/sq. cm), and Ward\'s triangle (0.58 vs. 0.78 g/sq. cm). The percentage of bone loss in L2-4 was more pronounced with increasing age. For each year of DMPA use, the decrease in bone mineral density was estimated to be 0.011 g/sq. cm (1.1%) in L2-4, 0.0193 g/sq. cm (2.3%) in the neck of femur, 0.0169 g/sq. cm (2.4%) in the trochanter, and 0.0277 g/sq. cm (3.5%) in Ward\'s triangle.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Case Reports
    据报道,一例28岁的孕妇3第2段妇女通过宫内节育器(IUD)进行回肠穿刺。插入Multiload-Cu375后四周,由于持续的腹部疼痛和IUD易位,该妇女进行了剖腹手术。该装置穿孔了子宫底壁和两个柔性侧臂,而铜轴承杆完全侵蚀了回肠壁,只有细绳突出到小肠系膜之外。切除回肠段并进行端对端吻合。那个女人顺利地康复了。似乎易位的Multiload-Cu375IUD体早在易位后4周就可以穿透并完全嵌入肠壁内。该报告记录了宫内节育器插入和经证实的肠损伤之间的最短间隔。
    宫内节育器相关子宫穿孔的频率估计为0.05-13.0/1000;15%的此类穿孔会导致邻近内脏器官的并发症,主要是肠子。本文介绍了一名28岁的gravida3,para2妇女的情况,该妇女在产后3个月就诊时发生回肠穿孔,并插入了Multiload-Cu375IUD。注意到插入是困难和痛苦的。该妇女在插入后25天因腹痛和IUD字符串缺失而出现在诊所。宫内节育器已经穿孔了前底子宫壁的整个厚度。两个柔性塑料臂和垂直的铜支撑肢体已完全侵蚀回肠壁。切除回肠段并进行端对端吻合是成功的。关于宫内节育器相关穿孔的文献——在本文随附的表格中总结——揭示了17个月的中位时间间隔(范围,2个月至13年)插入后。因此,本病例代表IUD插入与经证实的肠损伤之间的最短记录间隔(4周).
    A case of a 28-year-old gravida 3 para 2 woman with an ileal penetration by an intrauterine device (IUD) is reported. Four weeks following insertion of a Multiload-Cu 375, the woman underwent laparotomy due to persistent vague abdominal pain and translocation of the IUD. The device had perforated the fundal uterine wall and the two flexible side arms and the copper-bearing rod had completely eroded into the wall of the ileum with only the strings protruding outside the small bowel mesentery. Resection of an ileal segment with end-to-end anastomosis was performed. The woman made an uneventful recovery. It appears that a translocated Multiload-Cu 375 IUD body can penetrate and be entirely embedded within the bowel wall as early as 4 weeks following translocation. This report documents the shortest interval between insertion and proven bowel injury by an IUD.
    The frequency of IUD-associated uterine perforation has been estimated at 0.05-13.0/1000 insertions; 15% of such perforations lead to complications in the adjacent visceral organs, primarily the intestines. This paper describes the case of a 28-year-old gravida 3, para 2 woman with an ileal perforation associated with insertion of a Multiload-Cu 375 IUD at the 3-month postpartum visit. The insertion was noted to be difficult and painful. The woman presented to the clinic 25 days after insertion with abdominal pain and missing IUD strings. The IUD had perforated the full thickness of the anterior fundal uterine wall. The two flexible plastic arms and the vertical copper-bearing limb had completely eroded into the wall of the ileum. Resection of an ileal segment with end-to-end anastomosis was successful. The literature on IUD-related perforations--summarized in a table accompanying this article--reveals a median time interval of 17 months (range, 2 months to 13 years) post-insertion. Thus, the present case represents the shortest documented interval (4 weeks) between IUD insertion and proven bowel injury.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Clinical Trial
    在140名妇女中进行了一项前瞻性随机试验,以比较阴道吉贝前列素与阴道米索前列醇终止中期妊娠的疗效。要求终止中期妊娠的妇女被随机分为两组。A组妇女每3小时给予1mg阴道吉贝前列素,在最初24小时内最多给予5剂,而B组女性每3小时给予400微克阴道米索前列醇,24小时内最多5次。阴道米索前列醇组的中位诱导-流产间隔(14.1h)明显短于吉美前列素组(19.5h)。米索前列醇组24h内成功流产的妇女比例(80.0%)明显高于吉美前列素组(58.6%)。除腹泻外,两组不良反应发生率无显著性差异,这在吉美前列素组更为常见。米索前列醇组的发热发生率更高。结论阴道米索前列醇比吉美前列素更有效地终止中期妊娠。
    对阴道吉贝前列素和阴道米索前列醇终止中期妊娠的疗效进行了前瞻性比较,在香港进行的随机试验,中国。140名要求在14-20周孕龄终止妊娠的16-40岁妇女被分配接受每3小时1mg吉贝前列素直至5剂(n=70)或每3小时400mcg米索前列醇直至5剂(n=70)。米索前列醇组56例(80.0%)和吉贝前列素组41例(58.6%)在24小时内流产。在primigravidas,米索前列醇组的成功流产率(83.3%)明显高于吉美前列素组(55.3%)。对于多胎妇女,该比率在组间没有显着差异。米索前列醇组(14.1小时)的中位诱导-流产间隔明显短于吉贝前列素组(19.5小时)。术中失血量两组相似。尽管副作用的发生率没有显着差异,米索前列醇受体(24.3%)的腹泻发生率低于接受吉美前列素治疗的女性(40.0%).除了更有效地诱导流产,米索前列醇比吉贝前列素便宜得多,不需要冷藏运输和储存设施。因此,米索前列醇,不管有没有米非司酮,应该是终止中期妊娠的首选药物。需要进一步的研究,然而,以确定给药的最佳剂量和频率。
    A prospective randomized trial was conducted in 140 women to compare the efficacy of vaginal gemeprost with vaginal misoprostol for termination of second trimester pregnancy. Women requesting termination of second trimester pregnancy were randomized into two groups. Group A women were given 1 mg vaginal gemeprost every 3 h for a maximum of five doses in the first 24 h, whereas group B women were given 400 micrograms vaginal misoprostol every 3 h for a maximum of five doses in 24 h. The median induction-abortion interval in the vaginal misoprostol group (14.1 h) was significantly shorter than that in the gemeprost group (19.5 h). The percentage of women who achieved successful abortion within 24 h in the misoprostol group (80.0%) was significantly higher than that in the gemeprost group (58.6%). There was no significant difference in the incidence of side effects between the two groups except for diarrhea, which was more common in the gemeprost group. The incidence of fever was more common in the misoprostol group. It is concluded that vaginal misoprostol is more effective than gemeprost in termination of second trimester pregnancy.
    The efficacies of vaginal gemeprost and vaginal misoprostol for the termination of second-trimester pregnancies were compared in a prospective, randomized trial conducted in Hong Kong, China. 140 women 16-40 years of age requesting pregnancy termination at gestational ages of 14-20 weeks were allocated to receive either 1 mg of gemeprost every 3 hours up to 5 doses (n = 70) or 400 mcg of misoprostol every 3 hours up to 5 doses (n = 70). 56 women (80.0%) in the misoprostol group and 41 (58.6%) in the gemeprost group aborted within 24 hours. In primigravidas, the rate of successful abortion was significantly higher in the misoprostol group (83.3%) than the gemeprost group (55.3%). There were no significant between-group differences in this rate for multigravid women. The median induction-abortion interval was significantly shorter in the misoprostol group (14.1 hours) than the gemeprost group (19.5 hours). Blood loss during the procedure was similar in both groups. Although there was no significant difference in the incidence of side effects, diarrhea was less common in misoprostol acceptors (24.3%) than in women who received gemeprost (40.0%). In addition to being more effective at inducing abortion, misoprostol is substantially less expensive than gemeprost and does not require refrigerated transport and storage facilities. Thus, misoprostol, with or without mifepristone, should be the drug of choice for termination of mid-trimester pregnancies. Further studies are needed, however, to determine the optimal dose and frequency of administration.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Comparative Study
    This paper addresses two questions: 1) What is the relation of hemoglobin in the second gestational month to preterm birth and low birth weight? 2) How does the relation differ when hemoglobin in the fifth or eighth month or the lowest pregnancy hemoglobin are examined in place of first trimester values? These relations were examined prospectively in 829 women from Shanghai, China in 1991-1992. The population was nearly homogeneous by race, parity, antenatal care, and smoking. Rates of birth outcomes were compared between hemoglobin categories based on 10 g/liter groupings, with 110-119 g/liter as the reference group. Rates of low birth weight and preterm birth (but not small-for-gestational age) were related to early pregnancy hemoglobin concentration in a U-shaped manner. The relative risks (95% confidence intervals) for preterm birth in women by g/liter of hemoglobin were 2.52 (0.95-6.64) for > or = 130 g/liter, 1.11 (0.41-2.99) for 120-129 g/liter, 1.64 (0.77-3.47) for 100-109 g/liter, 2.63 (1.17-5.90) for 90-99 g/liter, and 3.73 (1.36-10.23) for 60-89 g/liter. Use of hemoglobin values in the fifth or eighth month attenuated the association with preterm birth. When lowest pregnancy hemoglobin values were used, the association of anemia with both outcomes was obscured, and risk of preterm birth at high hemoglobin values increased dramatically.
    The association of hemoglobin in the second gestational month with preterm birth and low birth weight (LBW), as well as the impact on this relationship of using hemoglobin values collected at times other than the second month, were investigated in a prospective observational study of 829 pregnant women from Shanghai, China, in 1991-92. Rates of LBW and preterm birth were related to early pregnancy hemoglobin concentrations in a U-shaped manner. The relative risks for preterm birth by g/l of hemoglobin were 2.52 (95% confidence interval (CI), 0.95-6.64) for 130 g/l and above, 1.11 (95% CI, 0.41-2.99) for 120-129 g/l, 1.64 (95% CI, 0.77-3.47) for 100-109 g/l, 2.63 (95% CI, 1.17-5.90) for 90-99 g/l, and 3.73 (95% CI, 1.36-10.23) for 60-89 g/l. Use of hemoglobin values in the 5th or 8th month of pregnancy attenuated the association with preterm birth. When the lowest pregnancy hemoglobin values were used, the association of anemia with both outcomes was obscured and the risk of preterm birth at high hemoglobin values increased markedly.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

公众号