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Clinical significance of targeting drug-based molecular biomarkers expression in ovarian clear cell carcinoma

Mengjiao LI ; Haoran LI ; Xi CHENG ; Rui BI ; Xiaoyu TU ; Fei LIU ; Lihua CHEN

Chinese Journal of Obstetrics and Gynecology.2017;52(12):835-843. doi:10.3760/cma.j.issn.0529-567x.2017.12.008

Objective To assess the expression level of targeting drug-based molecular biomarkers in ovarian clear cell carcinoma(OCCC)tissues and its clinical significance.Methods A total of 63 OCCC patients included 40 primary OCCC and 23 recurrent OCCC for secondary cytoreductive surgery(SCS),who had received primary surgeries at Fudan University Shanghai Cancer Center between January, 2008 and December, 2015 were enrolled, and immunohistochemistry SP method was used to test human epidermal growth factor receptor (EGFR), human epidermal growth factor receptor-2 (HER2), aurora kinase A (AURKA), breast cancer susceptibility gene 1 (BRCA1), BRCA2 and programmed death-ligand 1 (PD-L1) protein expression in paraffin-embedded tissues. Results The positive rates of EGFR, HER2, AURKA, BRCA1,BRCA2 and PD-L1 in primary and recurrent tumor tissues were respectively 20%(8/40)vs 30%(7/23),22%(9/40)vs 35%(8/23),38%(15/40)vs 35%(8/23),42%(17/40)vs 39%(9/23),20%(8/40)vs 22%(5/23), 25%(10/40)vs 17%(4/23), and there were no significant differences between primary and recurrent OCCC (all P>0.05). χ2-test or Fisher exact analysis revealed that HER2 expression in recurrent tumor tissues had a relationship with chemoresistance (P<0.05), while the expression of other biomarkers showed no significant relationship with chemoresistance (all P>0.05). Further, Kaplan-Meier survival analysis showed that patients with HER2 and AURKA-positive expression had a significantly shorter progression-free survival time in primary OCCC(4 months vs 10 months,log-rank test,P<0.05 for HER2;and 4 months vs 10 months,P<0.05 for AURKA);and a shorter overall survival time after SCS in recurrent OCCC (10 months vs 44 months, P<0.05 for HER2;and 13 months vs 43 months, P<0.05 for AURKA). However,multivariate Cox proportional hazards regression analysis indicated that none of these 6 biomarkers was independent risk factor of progression-free survival time of primary OCCC or overall survival time after SCS for recurrent OCCC (P>0.05). Conclusion HER2 and AURKA could serve as prognostic factors in ovarian clear cell carcinoma.

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Analysis of clinical outcomes of different embryo stage biopsy in array comparative genomic hybridization based preimplantation genetic diagnosis and screening

Jiandong SHEN ; Wei WU ; Li SHU ; Lingbo CAI ; Jiazi XIE ; Long MA ; Xueping SUN ; Yugui CUI ; Jiayin LIU

Chinese Journal of Obstetrics and Gynecology.2017;52(12):828-834. doi:10.3760/cma.j.issn.0529-567x.2017.12.007

Objective To evaluate the efficiency of the application of array comparative genomic hybridization (array-CGH) in preimplantation genetic diagnosis or screening (PGD/PGS), and compare the clinical outcomes of different stage embryo biopsy. Methods The outcomes of 381 PGD/PGS cycles referred in the First Affiliated Hospital of Nanjing Medical University from July 2011 to August 2015 were retrospectively analyzed. There were 320 PGD cycles with 156 cleavage-stage-biopsy cycles and 164 trophectoderm-biopsy cycles, 61 PGS cycles with 23 cleavage-stage-biopsy cycles and 38 trophectoderm-biopsy cycles.Chromosomal analysis was performed by array-CGH technology combined with whole genome amplification.Single embryo transfer was performed in all transfer cycles.Live birth rate was calculated as the main clinical outcomes. Results The embryo diagnosis rate of PGD/PGS by array-CGH were 96.9%-99.1%. In PGD biopsy cycles, the live birth rate per embryo transfer cycle and live birth rate per embryo biopsy cycle were 50.0%(58/116) and 37.2%(58/156) in cleavage-stage-biopsy group, 67.5%(85/126) and 51.8%(85/164) in trophectoderm-biopsy group (both P<0.01). In PGS biopsy cycles, the live birth rate per embryo transfer cycle and live birth rate per embryo biopsy cycle were the same as 34.8%(8/23) in cleavage-stage-biopsy group, the same as 42.1%(16/38) in trophectoderm-biopsy group (both P>0.05). Conclusions High diagnosis rate and idea live birth rate are achieved in PGD/PGS cycles based on array-CGH technology.The live birth rate of trophectoderm-biopsy group is significantly higher than that of cleavage-stage-biopsy group in PGD cycles;the efficiency of trophectoderm-biopsy is better.

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High risk factors analysis of stillbirth

Yu XIONG ; Hexia XIA ; Yisheng WANG ; Xiaolong LIN ; Tingting ZHU ; Ying ZHAO ; Xiaotian LI

Chinese Journal of Obstetrics and Gynecology.2017;52(12):811-817. doi:10.3760/cma.j.issn.0529-567x.2017.12.004

Objective To explore the high risk factors of stillbirth. Methods 176 cases of stillbirth were collected in the Obstetrics and Gynecology Hospital of Fudan University from January 1st, 2010 to December 31st, 2016. All cases were analyzed retrospectively, including general profile, high risk factors of stillbirth in different years and pregnancy periods. Results (1) The incidence of stillbirth was 0.178%(176/98 785). Stillbirth occured mostly at 28-28+6gestational weeks (10.8%,19/176), and the second peak was 29-29+6weeks(10.2%,18/176),while the third common period was 37-37+6weeks(9.1%,16/176).After 39 weeks,it maintained at a low level.(2)The top 5 high risk factors of stillbirth were infection (18.2%,32/176), unexplained (13.6%,24/176), hypertention disorders in pregnancy (13.1%, 23/176), umbilical cord torsion(12.5%,22/176)and fetal malformations(10.2%,18/176).(3)From 2010 to 2012,the top 3 high risk factors were unexplained, the umbilical cord torsion and infection, while hypertention in pregnancy,infection and fetal malformation became the top 3 high risk factors after 2013.(4)Early stillbirth (20-27+6weeks)accounted for 21.6%(38/176);and unexplained(47.4%,18/38),fetal edema(13.2%,5/38), infection(13.2%,5/38),umbilical cord torsion(5.3%,2/38)were the top 4 high risk factors.Late stillbirth(≥28 weeks)accounted for 78.4%(138/176),with infection(19.6%,27/138),hypertention in pregnancy(15.9%, 22/138), umbilical cord torsion (14.5%,20/138) and fetal malformation(12.3%,17/138)being the top 4 high risk factors. Conclusions More attention should be paid to maternal complications, especially infection and hypertension in pregnancy. Antenatal fetal monitoring, timely termination of pregnancy, standard management of stillbirth and looking for the causes may help reduce the incidence of stillbirth.

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Analysis of 2 204 stillbirths in 11 hospitals of Guangdong province

Lin YU ; Min TANG ; Xiuhua FAN ; Hongmei DU ; Hui TANG ; Ping CHEN ; Shunlian XING ; Chunhong SU ; Dunjin CHEN

Chinese Journal of Obstetrics and Gynecology.2017;52(12):805-810. doi:10.3760/cma.j.issn.0529-567x.2017.12.003

Objective To analyze the incidence and causes of stillbirth in 11 hospitals of Guangdong province, and to explore the appropriate interventions. Methods Clinical data of stillbirth in 11 hospitals of Guangdong province were collected from January 2014 to December 2016. The gestational weeks,causes,maternal conditions and other factors were analyzed.Results (1)From 2014 to 2016,103 472 newborns were delivered in the 11 hospitals,and the number of stillbirth was 2 204,with the incidence of 2.13%. Among them, 0.71%(738/103 472) was therapeutic induction, 1.42%(1 066/103 472) was natural stillbirth.At different gestational age(<28 weeks,28-<37 weeks and≥37 weeks),the incidence of stillbirth was 55.63% (1 226/2 204), 28.45% (627/2 204) and 15.92% (351/2 204), respectively, with statistically significant difference (P<0.01). (2) For stillbirth<28 weeks, the first reason was therapeutic induction, accounting for 53.34%(654/1 226).For stillbirth during 28-37 weeks,pre-eclampsia was the major cause, accounting for 40.67% (255/627). And for full-term stillbirth, the causes were umbilical cord factors (19.37%, 68/351), abnormal labor (17.09%, 60/351). (3) In all the stillbirth cases, the incidence of fetal growth restriction (FGR) <28 weeks was significantly higher than that during 28-37 weeks [23.49%(288/1 226)vs 18.02%(113/627), P<0.01]. (4) The stillbirth rate during labor was significantly higher in women ≥35 years old than in younger women [63.88%(191/299)vs 36.12%(108/299);χ2=9.346, P=0.000]. For the causes of stillbirth during labor, the incidence of severe maternal obstetrical complications [61.11%(33/54)vs 38.89%(21/54);χ2=3.323,P=0.002],abnormal labor[65.82%(52/79)vs 34.18%(27/79);χ2=4.067,P=0.001]and abnormal fetal position[66.63%(26/39)vs 33.37%(13/39);χ2=3.002,P=0.013] were higher in women ≥35 years old than in younger women. (5) Cesarean section during labor accounted for 33.77%(101/299)of stillbirth,including 76 cases of emergency cesarean section or converted to cesarean section during labor. Conclusions (1) The incidence of stillbirth in the 11 hospitals is high, and the causes are different at different gestational ages, therefore,different interventions are needed to reduce the incidence in different gestational weeks. Supervision of therapeutic induction should be strengthened <28 gestational weeks;standard management of pregnancy might decrease the occurrence of natural death ≥28 weeks. (2) Attention should be paid to fetal body weight during pregnancy, especially FGR. (3) The stillbirth rate is high in elderly pregnant women, so it is important to strengthen the management of the elderly pregnant women.

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Significance and expression of PAX8,PAX2,p53 and RAS in ovary and fallopian tubes to origin of ovarian high grade serous carcinoma

Yannan MAO ; Lixia ZENG ; Yuhong LI ; Yingzhao LIU ; Jianyong WU ; Li LI ; Qi WANG

Chinese Journal of Obstetrics and Gynecology.2017;52(10):687-696. doi:10.3760/cma.j.issn.0529-567x.2017.10.008

Objective To explore the origin of ovarian high grade serous carcinoma(HGSC) through analysing the expression and significance of PAX8,PAX2,p53 and RAS in the ovary and fallopian tube of different types and grades of serous carcinoma. Methods A total of 44 cases tissue samples of ovarian tumor including 34 malignant ovarian tumor and 10 normal normal tissue (as control group) were collected from the admitted patients in Affiliated Tumor Hospital of Guangxi Medical University from January 2015 to January 2016. Fallopian tube tissues were segmented in accordance with the fimbria, ampulla, isthmus and the corresponding ovarian tissues were by the side. There were 34 cases of patients with ovarian cancer including 29 cases of epithelial ovarian cancer (27 serous carcinoma, 1 mucinous carcinoma,1 endometrioid adenocarcinoma)and 5 non-epithelial ovarian cancer(sex cord-interstitial tumor). Among 27 cases of patients with ovarian serous cancer,there were 23 HGSC and 4 low-grade ovarian serous cancer (LGSC). One hundred fifty-three cases of samples were diagnosed as ovarian serous cancer by Shandong University Affiliated Qilu Hospital from 2005 to 2013 and these samples were made tissue microarray.(1)To analyze the expression and differences of PAX8,PAX2,p53 and RAS in the above tissues and tissue microarray from ovarian and tubal of HGSC and control women by immunohistochemistry methods.(2)To compare the expression levels of PAX8,PAX2,p53 and RAS in ovarian and fallopian tubes of ovarian cancer patients with different pathological types. (3) To analyze the correlations of tubal and ovarian tissue in PAX8,PAX2,p53 and RAS expression of HGSC.(4)To analyze the factors of the prognosis of ovarian serous cancer in tissue microarray by single factor analysis method. Results (1)PAX8,PAX2, p53 and RAS expression was negative in normal ovarian epithelium of control group,but the expression of PAX8, PAX2, p53 and RAS were strongly positive brown in secrete cells of normal fallopian tube epithelium.(2)p53 and RAS expression of fallopian tube epithelium in the epithelial ovarian cancer group were significantly higher than those in the non-epithelial ovarian cancer groups(P<0.05),but the expression of PAX8 and PAX2 in fallopian tube and the expression of PAX8,PAX2,p53 and RAS in ovarian tissue was not statistically significant in the groups(P>0.05).PAX8,PAX2 and p53 expression of the ovarian in HGSC group were significantly higher than those in LGSC group(P<0.05),while the expression of RAS was lower in the ovarian of the high-grade group (P<0.05), while the expression of PAX8, PAX2, p53 and RAS in fallopian tube was not statistically significant in the groups(P>0.05).(3)There was a significantly positive correlation between fallopian tube and the corresponding ovary of HGSC in PAX8 and PAX2 expression(r=0.422, P=0.045; r=0.693, P=0.000), but not correlation in p53 and RAS expression (r=0.058, P=0.793; r=-0.190,P=0.384).(4)Univariate survival analysis showed that the progression free survival time in patients with ovarian serous cancer group was significantly correlated with the protein expression of PAX8, PAX2 and RAS(P<0.05),but there were not correlated with age,surgical staging,cell differentiation,lymph node metastasis and preoperative chemotherapy and p53 protein expression (P>0.05). The total survival time in patients with ovarian serous cancer group was significantly correlated with the protein expression of PAX8 (P<0.05),but there were not correlated with age,surgical staging,cell differentiation,lymph node metastasis and preoperative chemotherapy and the protein expression of PAX2, RAS and p53 (P>0.05). Conclusions PAX8, PAX2, p53, RAS are of great significance for the study of origin of HGSC. HGSC may be derived from fallopian tube, but further investigation would be necessary to confirm this. PAX8, PAX2, p53, RAS could be expected to be used as predictors of survival prognosis in patients with ovarian serous cancer.

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Clinical study of intensity modulated radiotherapy and three-dimensional conformal radiotherapy with three-dimensional brachytherapy and concurrent chemotherapy for patients with advanced cervical cancer

Xinxin DU ; Hao YANG ; Huijuan ZHANG ; Lian LI ; Wensheng FAN ; Yuanguang MENG

Chinese Journal of Obstetrics and Gynecology.2017;52(10):679-686. doi:10.3760/cma.j.issn.0529-567x.2017.10.007

Objective To compare the dose, clinical efficacy and acute adverse reactions of intensity modulated radiotherapy(IMRT)and three-dimensional conformal radiotherapy(3D-CRT)combined with three-dimensional brachytherapy (3D-BT) in the treatment of concurrent radiotherapy and chemotherapy for advanced stage cervical cancer patients. Methods Data collection was performed from January 2011 to November 2015 in Chinese PLA General Hospital and Inner Mongolia Cancer Hospital.All 89 patients with advanced stage (Ⅱb-Ⅲb) cervical cancer were treated by pelvic radiotherapy and concurrent chemotherapy, 46 cases of them received IMRT and 3D-BT(IMRT group), 43 cases received 3D-CRT and 3D-BT(3D-CRT group),along with cisplatin chemotherapy.The dose accumulation of external beam radiotherapy and 3D-BT was calculated by deformable image registration to analyze clinical efficacy, acute adverse reactions and prognosis of the two groups.Results (1)Dose of radiotherapy:planning target volume(PTV)coverage of IMRT group and 3D-CRT group were respectively(95.4±4.7)% and(95.1±5.1)%, without significant differences (t=0.289, P=0.773). Compared with the patients treated with 3D-CRT, the volumn receiving at least 30 Gy (V30), V50of rectum, colon, bladder and small intestine and V20of bone marrow in the IMRT group were significantly decreased (P<0.05). Regarding the combined dose, the maximum dose (Dmax) and the minimum dose received by the most exposed 2 cm3volume of the analyzed organ(D2CC)of rectum,colon,bladder and small intestine of IMRT group were significantly lower than those of 3D-CRT group (P<0.05). (2) Short-term efficacy: the effective rate of IMRT and 3D-CRT group were respectively 93% (43/46) and 91% (39/43), with no significant differences (χ2=0.237,P=0.626). (3) Acute adverse reactions: compared with 3D-CRT, IMRT could significantly reduce grade 1-2 acute toxicity in gastrointestinal [63%(29/46) vs 84%(36/43)], genitourinary [17%(8/46) vs 37%(16/43)] and hematologic [57%(26/46) vs 79%(34/43)] system (all P<0.05). There were no significant differences of grade 3 acute adverse reactions of gastrointestinal,genitourinary and hematologic system between two groups(all P>0.05). No grade 4 acute adverse reactions were observed. (4) Prognosis: the overall survival rate at 1, 2-year of IMRT and 3D-CRT group were respectively 95.6%,89.1% and 93.1%,86.1%.The progression-free survival rateat 1, 2-year of IMRT and 3D-CRT group were 91.1%, 89.1% and 88.4%, 86.1%, respectively. There were no significant differences in overall survival rate and progression-free survival rate between two groups (P>0.05). Conclusions Compared with 3D-CRT, IMRT combined with 3D-BT has dosimetry advantages based on dose accumulation algorithms by deformable image registration. IMRT could ensure clinical efficacy and significantly reduce the incidence rate of acute toxicities.

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Prenatal diagnosis of 17q12 microdeletion syndrome in fetal renal abnormalities

Yulin JIANG ; Qingwei QI ; Xiya ZHOU ; Fangfang GENG ; Junjie BAI ; Na HAO ; Juntao LIU

Chinese Journal of Obstetrics and Gynecology.2017;52(10):662-668. doi:10.3760/cma.j.issn.0529-567x.2017.10.004

[Abstrcat] Objectives To analyze 3 cases of 17q12 microdeletion syndrome diagnosed prenatally, and to demonstrate clinical phenotype of the syndrome in prenatal setting.Methods From January 2013 to July 2017,1 370 women received invasive prenatal diagnosis and chromosome microarray analysis(CMA)in Peking Union Medical College Hospital. Among them, 3 fetuses were diagnosed as 17q12 microdeletion syndrome.All 3 cases were low-risk pregnancies.Abnormal structures in fetal kidney were found in all 3 cases, including 1 case of multiple renal cysts,2 cases of bilateral hyperechogenic kidneys.These women accepted invasive prenatal diagnosis followed by karyotyping, parental fluorescence in situ hybridization or CMA validation.Results The second and third trimester ultrasound showed that all 3 fetuses had bilateral renal structural abnormalities, including hyperechogenic kidney, multiple cysts and renal pelvis dilatation. The karyotyping of the 3 fetuses were normal.CMA examination showed that each case had 1.4-1.6 Mb deletion in 17q12 region.Two cases were de novo deletion and 1 case was inherited from the mother who had mild symptoms. The 3 women decided to terminate pregnancies after genetic counseling. Conclusion 17q12 microdeletion syndrome is a recurrent chromosome microdeletion syndrome, and the unique phenotype in prenatal setting is the abnormal structure of bilateral kidneys.A few cases of 17q12 microdeletion syndrome even inherited normally phenotypical parents, and prenatal genetic counseling of 17q12 microdeletion syndrome is relatively difficult.

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Clinical analysis of 19 pregnancies complicated listeriosis

Linghan KUANG ; Yunhui GONG ; Min SU ; Yongmei JIANG

Chinese Journal of Obstetrics and Gynecology.2017;52(10):657-661. doi:10.3760/cma.j.issn.0529-567x.2017.10.003

Objective To analyze the clinical characteristics and perinatal outcomes of listeriosis during pregnancy. Methods From July 2010 to April 2017, 70 131 women delivered in West China Second University Hospital.Nineteen cases were confirmed as listeriosis.The clinical symptoms,laboratory results,pathogens,placenta pathology and perinatal outcomes were analyzed retrospectively. Results The median age of the 19 cases was 29.7 (19.0-42.0) years old. The median time before diagnosis was 4.8 (0.5-19.0) days. The main clinical symptoms at first visits were high fever (17/19), increased white blood cells (18/19), abdominal pain (12/19). Listeria was found in samples of mother′s blood (11/19), vaginal secretions(15/19),placenta(1/19),neonatal blood(4/19),neonatal phlegm(5/19)and neonatal ear secretions (1/19),respectively.Inflammation of placenta was identified in all 19 cases.Among the 19 cases,1 was gradeⅠ chorioamnionitis,4 was grade Ⅱ,5 was grade Ⅲand 9 was grade Ⅵ. Only 4 newborn survived after therapy,and others suffered perinatal death,including 8 cases of intrauterine death,3 cases of miscarriage and 6 cases of treatment failure. Conclusions Listeriosis has characteristics of acute onset, quick development and high morbidity during pregnancy. The empiric use of antibiotics might not cover listeria. The understanding of listeriosis should be improved.

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Clinical retrospective control study of single-port laparoendoscopic and multi-port laparoscopic ovarian cystectomy

Xiu LIU ; Mengke WEN ; Haiyuan LIU ; Dawei SUN ; Jinghe LANG ; Qingbo FAN ; Honghui SHI

Chinese Journal of Obstetrics and Gynecology.2017;52(10):675-678. doi:10.3760/cma.j.issn.0529-567x.2017.10.006

Objective To investigate clinical outcomes of laparoendoscopic single-site ovarian cystectomy compared with traditional multi-port laparoscopic ovarian cystectomy. Methods Data of 81 patients with ovarian cystectomy from January 2016 to May 2017, the single-site group (n=40) and the multi-port group (n=41) in Peking Union Medical College Hospital were retrospectively collected. The outcomes of single-site and multi-port groups were analyzed and compared, including: postoperative fever, operation time, blood loss, hemoglobin change, surgical complications, postoperative pain score, postoperative analgesic requirements, body image scale and cosmetic score, length of hospital stay, postoperative total cost. Results No complication was found in two groups. No difference was found in postoperative fever, blood loss, hemoglobin change, postoperative pain score, length of hospital stay, and total cost between the two groups(all P>0.05).Operation time was(50±20)minutes in single-site group,and (40 ± 15) minutes in multi-port group; postoperative analgesic requirements was 28%(11/40) in single-site group,and 7%(4/41)in multi-port group;cosmetic score was 22.6±2.6 in single-site group,and 17.3±2.6 in multi-port group;body image scale was 5.7±1.2 in single-site group,and 6.2±1.2 in multi-port group;these four clinical parameters were statistical differences(all P<0.05).Conculsion Laparoendoscopic single-site ovarian cystectomy is feasible and safe,although it could′t relieve the postoperative pian,it do offer a higher cosmetic satisfaction.

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Clinical analysis on hysteroscopic surgery for the treatment of type Ⅱcesarean scar pregnancy in the first trimester

Zhengyun CHEN ; Xiaoyong LI ; Da ZHAO ; Mi ZHOU ; Ping XU ; Xiufeng HUANG ; Xinmei ZHANG

Chinese Journal of Obstetrics and Gynecology.2017;52(10):669-674. doi:10.3760/cma.j.issn.0529-567x.2017.10.005

Objective To investigate the safety and efficacy of hysterosopic management of typeⅡcesarean scar pregnancy (CSP) and the value of prophylactic uterine artery embolization (UAE). Methods Totally 104 patients with typeⅡCSP treated with hysteroscopic surgery at the Women′s Hospital,School of Medicine, Zhejiang University, during Jan. 2009 to Jun. 2016 were analyzed retrospectively, 67 patients combined with UAE (UAE group) and 37 patients without combined with UAE (non-UAE group). Laparoscopy or sonography guidance was conducted simultaneously.The following clinical parameters were compared, including: primary cure rate, uterine packing rate, uterine perforation rate, hemoglobin level change,the time for the mass absorption and the return of β-hCG to normal,complications,hospital days and hospital stay cost.Results Median gestational age,size of mass,thickness of the anterior myometrium and β-hCG level in UAE group versus non-UAE group were 47 versus 47 days,30 versus 30 mm,2 versus 2 mm, 36 524 versus 32 226 U/L(all P>0.05).Out of 104,100 patients were managed successfully with hysteroscopic surgery, and 4 patients transformed to laparoscopic or laparotomy surgery. Hysteroscopic surgery was effective in 63 out of 67 patients(94%)in UAE group and 34 out of 37 patients(92%)in non-UAE group(P>0.05). There was no significant differences regarding uterine perforation rate, uterine packing rate, hemoglobin change and recovery time between UAE group and non-UAE group (all P>0.05). The median hospital day was 7 days in UAE group versus 5 days in non-UAE group(P<0.01).The median hospital stay cost was 13 654 yuan in UAE group versus 9 108 yuan in non-UAE group (P<0.01). Serious complication occurred in 4 patients (6%, 4/67) in UAE group and 2 patients (5%, 2/67) in non-UAE group (P=0.906). Conclusions Hysteroscopic surgery is effective and safe for patients with typeⅡCSP in the first trimester with size≤30 mm in diameter and gestation age<7 weeks.The value of prophylactic UAE is uncertain.

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