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Comparison of modified percutaneous transhepatic variceal embolization and endoscopic cyanoacrylate injection for gastric variceal rebleeding

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World Journal of Gastroenterology 2013年第5期19卷 706-714页

作者： Jing Wang Xiang-Guo Tian Yan Li Chun-Qing Zhang Fu-Li Liu Yi Cui Ji-Yong Liu Department of Gastroenterology Provincial Hospital Affiliated to Shandong University

AIM:To compare the efficacy of modified percutaneous transhepatic variceal embolization(PTVE)with 2-octyl-cyanoacrylate(2-OCA)and endoscopic variceal obturation(EVO)with an injection of 2-OCA for prophylaxis of gastric variceal rebleeding. METHODS:In this retrospective study,the medical records of liver cirrhosis patients with gastric variceal bleeding who underwent either endoscopic 2-OCA(EVO) or modified PTVE using 2-OCA at Shandong Provincial Hospital from January 2006 to December 2008 were *** demographics,rebleeding rate,survival rate,and complications were compared between the two groups(PTVE and EVO).All results were expressed as mean±SD,or as a *** variables were compared by two sample Student t tests, and qualitative variables were compared by the Fisher exact test or theχ 2 test(with Yates correction)where appropriate.A P value less than 0.05 was considered *** computation was performed using SPSS 13.0 software. RESULTS:A total of 77 patients were included;45 patients who underwent EVO and 32 patients who received *** the follow-up(19.78±7.70 mo in the EVO group,vs 21.53±8.56 mo in the PTVE group) rebleeding occurred in 17 patients in the EVO group and in 4 patients in the PTVE group(37.78%vs 12.5%, P=0.028).The cumulative rebleeding-free rate was 75%,59%,and 49%in 1,2,and 3 years respectively for EVO,and 93%,84%,and 84%for PTVE(P=0.011). Cox analysis was used to identify independent factors that predicted rebleeding after *** including age,gender,cause,Child-Pugh classification, size of gastric varices(GV),location of GV,and treatment methods were *** was revealed that Child-Pugh classification[risk ratio(RR)2.10,95%CI:1.03-4.28,P=0.040],choice of treatment(RR 0.25, 95%CI:0.08-0.80,P=0.019),and size of GV(RR 2.14, 95%CI:1.07-4.28,P=0.032)were the independent factors for predicting ***-up computed tomography revealed that cyanoacrylate was retained in the var

关键词： Gastric varices Endoscopic variceal obturation Percutaneous transhepatic variceal embolization 2-octyl-cyanoacrylate Bleeding

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Quantitative scintigraphic analysis of the apical seal in Thermafil/Topseal and Real Seal 1/Realseal filled root canals

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World Journal of Stomatology 2013年第2期2卷 30-34页

作者： Manuel Marques Ferreira Margarida Abrantes Eunice Virgínia Carrilho Maria Filomena Botelho Department of Dentistry Faculty of Medicine University of Coimbra3000 Coimbra Portugal Department of Biophysics and Biomathematics IBILI-Faculty of Medicine University of Coimbra 3000 Coimbra Portugal

AIM: To investigate the microleakage of two different root canal obturation systems, using the nuclear medicine ***: Twenty-six single-rooted extracted teeth were selected. The crowns were sectioned to obtain 15-mm long root segments and each tooth was prepared using rotary Pro File instruments. The roots were divided into 2 experimental groups using Real Seal 1 and Real Seal sealer or Thermafil and Top Seal sealer as well as two control groups. On the 7th and the 28 th day the apices were submersed in a solution of 99 m TcPertechnetate during 3 h. The radioactivity was counted using a γ camera. RESULTS: The present study showed that none of the root canal-filled teeth was leakage free. The statistical analyses were made using Kruskal-Wallis and statistical significance was assessed using α = 0.05. Although apical leakage measured in counts per minute(cpm) in the Thermafil/Top Seal group was lower than in the Real Seal/Real Seal group(363 916 ± 180 707.7 cpm vs533 427 ± 414 020.6 cpm) on 7th day and(1 678 200 ± 567 217.4 cpm vs 2 240 518 ± 383 356.7 cpm) on 28 th day, there was no statistical difference(P > 0.05). In the Thermafil/Top Seal group and Real Seal 1/Real Seal group it was found that over time, the number of counts increased between 7 d and 28 d(363 916 ± 180 707.7 cpm vs 1 678 200 ± 567 217.4 cpm) and(533 427 ± 414 020.6 cpm vs 2 240 518 ± 383 356.7 cpm), respectively, with statistically significant differences(Thermafil/Top Seal group, P = 0.015 and Real Seal 1/Real Seal group, P = 0.036).CONCLUSION:Both carrier-based Realseal 1 and Thermafil techniques showed a similar sealing effect,but none of the materials was leakage free.

关键词： Microleakage Nuclear medicine obturation Thermafil Realseal

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Comparison of the apical seal on filled root canals with Topseal<sup>®</sup>vs MTA Fillapex<sup>®</sup>sealers: A quantitative scintigraphic analysis

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Open Journal of Stomatology 2013年第2期3卷 128-132页

作者： Manuel Marques Ferreira Margarida Abrantes Hugo Ferreira Eunice Virgínia Carrilho Maria Filomena Botelho Department of Biophysics and Biomathematics IBILI-Faculty of Medicine University of Coimbra Coimbra Portugal Department of Dentistry Faculty of Medicine University of Coimbra Coimbra Portugal

This study investigated the microleakage of two different root canal obturation systems, using the nuclear medicine approach, with sodium pertechnetate 99mTc. Twenty six single-rooted extracted teeth were selected. The crowns were sectioned to obtain15 mmlong root segments and each tooth was prepared using rotary ProFile? instruments. The roots were divided into 2 experimental groups and two control groups. Twenty root canals were filled, using Thermafil? and Topseal? or MTA Fillapex? as a sealer. On the 7th and the 28th day the apices were submersed in a solution of 99mTc-Pertechnetate during 3 hours. The radioactivity was counted using a gamma camera. Although apical leakage on the 7th day in the Topseal group was reduced compared with RealSeal1, with a statistical significant difference (p = 0.057), on the 28th day, the MTA Fillapex increased the sealing properties (p = 0.017).

关键词： Microleakage Nuclear Medicine obturation Thermafil Topseal MTA Fillapex

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