1.Pediatric liver transplantation from split livers: a single-center experience
Shanni LI ; Nan MA ; Chao SUN ; Chong DONG ; Wei GAO
Chinese Journal of Organ Transplantation 2015;36(5):280-284
Objective To analyze and evaluate the efficay of split liver transplantation in children.Method From September 2006 to December 2014,210 children were treated with liver transplantation in Tianjin First Central Hospital.The clinical data were retrospectively analyzed and the difference in postoperative survival was compared between the groups.The 210 childrens were categorized into living donor liver transplantation group (183 cases) and split liver transplantation group (27 cases) based on their operation styles.In living group,all donors to recipients were immediate relatives within three generations.In split group,all donors were men,and livers were obtained from no heartbeat donors.Postoperatively,tacrolimus combined a duplex of prednisolone served as immunosuppression scheme.The survival and incidence of complications were observed.Result There was significant difference in the sex ratio between two groups (P<0.05).The donor liver cold ischemia time was significantly longer in split group than in living group (P<0.05).The 1-month,6-month,1-year and 2-year overall survival rate in 210 recipients was 99.5%,98.1%,96.2% and 94.2% respectively.The median follow-up time in living group and split group was 15.2months and 26.1 months,respectively.The 1-mont,6-month,1-year and 2-year survival rate was 99.5%,96.7%,92.6% and 74.1 % in living group,and 97.8%,96.2%,77.8% and 74.0% in split group,respectively (P<0.05).During the follow-up period,8 cases died (29.6%) in split group (5deaths due to infection and sepsis,and 3 deaths due to multiple organ failure),and 10 cases died (5.5%) in living group (6 deaths due to infection and sepsis,and 4 deaths due to multiple organ failure).Conclusion In the case of strict selection of donors,split liver transplantation can obtain good effect,but the incidence of complications is higher than living donor liver transplantation.Especially,the biliary complications should be prevented and managed actively.
2.Experimental study for Comparison of the Degree of Fragmentation according to the Various Levels of Shock Wave Power in Same Storage with EDAP LT-01 Plus.
Korean Journal of Urology 1994;35(7):775-778
ESWL has become the treatment of choice for urinary tract calculi in merit of non- invasiveness, high success rate, l w complication rate and with no need of anesthesia and admission. But we experienced that many patient complained pain during ESWL, especially during the treatment with high shock wave power. So we evaluated the quantity of fragmentation at different shock wave power but same storage which is known as compatible to the amount of energy. In our study, total of 60 cubic gypsums of average weight were fragmented in vitro at same storage, in 20, but at 3 different shock wave power setting, l00%, 76%, 46%, using EDAP LT- 01 device. The weight reductions at each shock wave power were 0.947+/-0.30gram (9.88% of total weight) at 100% shock wave power, 0.900+/-0.33 gram (9.94% of total weight) at 76% shock wave power, 0.310+/-0.14 gram (3.29% of total weight) at 46% shock wave power. The result indicate that the shock wave power is important role in fragmentation than the number of shock wave, even at same storage. So the efficacy of ESWL with low shock wave power will be decreased than with high shock wave power.
Anesthesia
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Calcium Sulfate
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Calculi
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Humans
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Shock*
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Urinary Tract
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Weight Loss
3.De novo hepatitis B virus infection from anti-HBc-positive donors in pediatric living donor liver transplantation and the treatment
Chong DONG ; Wei GAO ; Nan MA ; Chao SUN ; Shanli LI ; Kai WANG ; Zhongyang SHEN
Chinese Journal of Organ Transplantation 2015;36(2):92-96
Objective To analyze the incidence and risk factors of de novo hepatitis B virus (HBV) infection from anti-HBc-positive donors in pediatric living donor liver transplantation and to explore the diagnosis and treatment.Method A retrospective analysis was conducted on 105 cases of pediatric living donor liver transplantaions (LT) perfomed during September 2006 to December 2013.HBV markers,including hepatitis B surface antigen (HBsAg) and antibody (anti-HBs),anti-HBc,hepatitis B e antigen (HBeAg) and antibody (anti-HBe) were determined in both donors and recipients before LT and in recipients after LT.HBV DNA titer was measured if the recipients were strongly suspected of de novo HBV infection.Result After 4 perioperative deaths were excluded,101 cases were studied.The median follow-up period of all the patients was 20.5 months (2.7-97.7 months).de novo HBV infection occurred in 6 of 101 recipients (5.9%) 3.5 18 months after LT.Forty-four (43.6%) of the children received HBcAb-positive allografts,and 11.4% (5/44) of the children were had de novo hepatitis B infection.All five of the HBV-infected children received HBcAb-positive allografts without preventive treatment in 11 cases (5/11,45.5 %),57 (56.4%) of the children received HBcAb-negtive allografts,and 1.7% (1/57) of the children had de novo hepatitis B infection.Conclusion Anti-HBc-positive donors can significantly increase the incidence of de novo HBV infection in HBsAg-negative recipients without preventive treatment.with the appropriate treatment strategy,HBcAb allografts can safely used in pediatric recipients.
4.Contrast-enhanced Ultrasound for Diagnosing Papillary Thyroid Carcinoma
Jing CHONG ; Yongmei SUN ; Junpeng ZHANG ; Hongqiao WANG ; Ping LI ; Hai DONG
Chinese Journal of Medical Imaging 2017;25(4):241-245
Purpose To evaluate the diagnostic value of contrast-enhanced ultrasound (CEUS) in papillary thyroid carcinomas (PTC) by exploring the relationship between quantitative parameters of time-intensity curve (TIC) of CEUS for PTC and tumor size and metastasis of cervical lymph nodes.Materials and Methods 124 patients with PTC confirmed by surgery and pathology in the Affiliated Hospital of Qingdao University were retrospectively analyzed.According to maximum diameter of lesions (D),the lesions were divided into three groups with D<1.0 cm,1.0 cm ≤ D ≤ 2.0 cm and D>2.0 cm.The lesions were also divided into LN(+) group with lymph node metastasis and LN(-) group without lymph node metastasis based on pathology of cervical lymph nodes.The features of CEUS and quantitative parameters of TIC of the above groups were analyzed.Results ① The CEUS showed that the PTC nodules were mainly concentric and heterogeneous enhancement.Thyroid carcinoma with D<1.0 cm and 1.0 cm≤D≤2.0 cm showed low enhancement (45/57,31/42),while thyroid carcinomas with D>2.0 cm exhibited high enhancement (14/25),and the difference was significant (P<0.05).① With the increase of the diameter of PTC,the peak intensity [(12.75 ± 3.77)%,(15.53 ± 3.62)%,(18.11 ± 4.28)%],the area under the curve [(820.52±289.19)%.s,(873.84± 156.19)%· s,(1118.8± 152.48)% ·s] and the ratio of the perfusion defects (24.56%,52.38%,72.00%) were increased,and the differences were statistically significant (P<0.05).③ The cervical lymph node metastasis rate of PTCs with isoenhancement or hyperenhancement patterns showed by CEUS was significantly higher than that with hypoenhancement (P<0.05).The peak intensity and the area under the curve of LN (+) group were higher than that of LN (-) group,and the differences were statistically significant (P<0.05).Conclusion There were significant differences in imaging features of CEUS between the PTC nodules with different size and lymph node metastasis,which can provide valuable information for clinical diagnosis.
5.Identification of atractylodis macrocephalae rhizoma and atractylodis rhizoma from their adulterants using DNA barcoding.
Ya-Dong YU ; Lin-Chun SHI ; Xiao-Chong MA ; Wei SUN ; Meng YE ; Li XIANG
China Journal of Chinese Materia Medica 2014;39(12):2194-2198
Atractylodis Macrocephalae Rhizoma and Atractylodis Rhizoma were widely used in strengthening spleen under different disease conditions, and were easily and often misused each other. Therefore, DNA barcode was used to distinguish Atractylodis Macrocephalae Rhizoma and Atractylodis Rhizoma from their adulterants to ensure the safe use. The sequence lengths of ITS2 of Atractylodes macrocephala, Atractylodis Rhizoma (A. lancea, A. japonica and A. coreana) were both 229 bp. Among the ITS2 sequences of A. macrocephala, only one G/C transversion was detected at site 98, and the average GC content was 69.42%. No variable site was detected in the ITS2 sequences of A. lancea. The maximum K2P intraspecific genetic distances of both A. japonica and A. coreana were 0.013. The maximum K2P intraspecific genetic distances of A. macrocephala, A. lancea, A. japonica and A. coreana were less than the minimum interspecific genetic distance of adulterants. The ITS2 sequences in each of these polytypic species were separated into pairs of divergent clusters in the NJ tree. DNA barcoding could be used as a fast and accurate identification method to distinguish Atractylodis Macrocephalae Rhizoma, Atractylodis Rhizoma, from their adulterants to ensure its safe use.
Atractylodes
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classification
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genetics
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DNA Barcoding, Taxonomic
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methods
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DNA, Plant
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genetics
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DNA, Ribosomal Spacer
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genetics
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Drug Contamination
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prevention & control
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Drugs, Chinese Herbal
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chemistry
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classification
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Molecular Sequence Data
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Phylogeny
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Quality Control
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Rhizome
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classification
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genetics
6.Cloning, Sequencing of Suaeda heteroptera kitag CMO cDNA and Construction of its Recombinant Plant Expression Vector
Chong-Bin ZHONG ; Chang-Jiang LIU ; Teng FEI ; Xiao-Dong YUAN ; Li-Hui SUN ;
China Biotechnology 2006;0(07):-
Total RNA was extracted from leaf of Suaeda hetroptera kitag, then the CMO ( choline monooxygenase) cDNA was amplified using the reverse transcriptase polymerase chain reaction ( RT-PCR) method and cloned into pMD-T-simple vector. The positive clones from the Blue/White Screen were sequenced. After confirming its validity, the CMO gene fragment was cloned into pBI121 vector. Double enzyme restriction and PCR analysis indicated that the pBI121/CMO recombinant plasmid was successfully constructed.
7.Contrast-enhanced ultrasound characteristics of papillary thyroid carcinoma and its relationship with microvessel density and microvessel area
Jing, CHONG ; Yongmei, SUN ; Chunping, NING ; Hongqiao, WANG ; Zongli, YANG ; Hai, DONG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2017;14(4):274-279
Objective To explore the correlation between quantitative parameters of blood perfusion with contrast-enhanced ultrasound (CEUS) and microvessel density (MVD),microvessel area (MVA) in papillary thyroid carcinoma (PTC).And to investigate the value of CEUS in evaluating the angiogenesis in PTC before operation.Methods Totally 69 cases of patients with papillary thyroid carcinoma were selected from April 2014 to October 2016 in the Affiliated Hospital of Qingdao University.The CEUS characteristics of 69 patients with papillary thyroid carcinoma confirmed by pathology were retrospectively analyzed.The patients were divided into three groups according to maximum diameter of lesions (< 1 cm group,1-2 cm group and > 2.0 cm group),and two groups according to pathologic reports (neck lymph node metastatic and nonmetastatic groups).The blood perfusion parameters between or among different groups were evaluated by ttest or one-way ANOVA.Immunohistochemical staining were performed to evaluate the MVD,MVA in the surgical specimens,and the correlation of quantitative parameters with MVD,MVA were assessed by Spearman.Results (1) Peak Intensity (Peak),area under the curve (AUC),MVD and MVA of thyroid carcinoma were lower than the surrounding normal thyroid tissue (14.95 ± 4.96 vs 22.67±6.11,970.01±263.20 vs 1798.35±563.67,118.91±31.32 vs 206.27±39.58,8.58±-2.68 vs 18.47±3.13),and the differences were statistically significant (t=-8.700,-11.061,-14.377 and-20.532,all P < 0.05).(2)With the increase of the lesion's maximum diameter,Peak,AUC,MVD and MVA increased,and the differences were statistically significant (t=0.000,0.000,0.000,0.000;t=0.027,0.044,0.033,0.000;t=0.027,0.044,0.033,0.000,all P < 0.05).(3) Papillary thyroid carcinoma with lymphatic involvement had significantly higher values of Peak,AUC,MVD and MVA than those without lymphatic involvement (16.86±4.36 vs 13.80±3.55,1128.16±290.85 vs 874.39±192.27,114.12±30.69 vs 103.67±22.19,10.30 ± 2.44 vs 7.54 ± 2.29),and the differences were statistically significant (t=3.177,4.366,6.336 and 4.742,all P < 0.05).(4) A positive correlation existed between the Peak,AUC and MVD,and the differences were statistically significant (r=0.506,0.478,all P <0.05).Peak,AUC and MVA showed positive correlation,and the differences were statistically significant (r=0.648,0.653,all P < 0.05).TP,MTT and MVD,MVA showed no correlations (all P > 0.05).Conclusions The values of Peak and AUC calculated from CEUS were correlated to MVD and MVA.CEUS may be used to evaluated the angiogenesis of PTC before operation.And CEUS is helpful for prediction of prognosis of PTC.
8.Clinical analysis of ABO-incompatible pediatric liver transplantation in 16 patients
Chao SUN ; Wei GAO ; Nan MA ; Chong DONG ; Kai WANG ; Shanni LI ; Zhongyang SHEN
Chinese Journal of Organ Transplantation 2015;36(10):577-581
Objective To evaluate the safety and clinical effect of ABO-incompatible (ILT) pediatric living donor liver transplantation.Method We analyzed 169 pediatric living donor liver transplantation recipients from Sept.20,2006 to Dec.31,2014.There were 16 ABO-incompatible liver transplantation cases.The median age was 6 months.The blood agglutitin titer was monitored.The titer was controlled lower or equal to 1 ∶ 16.The method to decrease blood agglutitin titer included IVIG and plasma exchange.The patients were treated with Tacrolimus combined with methylprednisolone.Basiliximab for injection was used.The patients were followed-up for 9-26months.The survival rate,acute rejection,vascular and biliary tract complications,and infection were monitored.Result All the patients survived.There was once case of acute rejection,1 case of bile duct dilatation,2 cases of portal vein stenosis,8 cases of EBV viremia,5 cases of CMV viremia,and 6 cases of lung infection.The liver functions of all the 16 recipients were recovered within 3 weeks.Conclusion ABO-incompatible liver grafts can be used safely in pediatric patients.
9.Application of hepatitis B surface antigen positive graft in hepatic carcinoma patients receiving liver transplantation
Kai WANG ; Wei GAO ; Nan MA ; Zhenglu WANG ; Chao SUN ; Chong DONG
Chinese Journal of Organ Transplantation 2015;36(9):536-539
Objective To identify the long-term survival of patients with hepatic carcinoma who received hepatitis B surface antigen (HBsAg) positive donor livers.Method A total of 195 patients were enrolled in the study.They were all diagnosed as having hepatic carcinoma with malignant thrombus in portal vein pre-operation and received liver transplantations between 1999 and 2014.The long-term survival between the patients who received HBsAg positive grafts and those who received HBsAg negative grafts was compared.Result There were no differences in ages,preoperative tumor stages and postoperative mortality between the two groups.There was significant difference in survival time between the two groups (Z=-2.038,P =0.042),with the median survival time of 8.83 months (2.50-24.80 months) in HBsAg positive graft group and 13.12 months (6.50-27.65 months) in HBsAg negative graft group,respectively.The long-term survival rate in HBsAg positive graft group was 48% and that in HBsAg negative graft group was 34.7% (P =0.740,x2 =0.110).However,the proportion of deaths due to recurrence of tumor was high to 75.8% in all causes.Conclusion To prolong the survival time,it is safe and feasible to receive HBsAg positive donor livers in patients with hepatic carcinoma in late stage.However,tumor recurrence was still the main causes of deaths in patients post-operation because of the advanced tumor conditions pre-operation.
10.A case of Boerhaave's syndrome.
Chong In LEE ; Sun Woo BAE ; Soon Koo BAIK ; Seong Wu LEE ; Dong Ki LEE ; Sang Ok KWON
Korean Journal of Medicine 1993;45(5):696-701
No abstract available.