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| 1 | Percutaneous left atrial appendage closure:Technical aspects and prevention of periprocedural complications with the watchman device显示文摘Transcatheter closure of the left atrial appendage has been developed as an alternative to chronic oral anticoagulation for stroke prevention in patients with atrial fibrillation, and as a primary therapy for patients with contraindications to chronic oral anticoagulation. The promise of this new intervention compared with warfarin has been supported by several, small studies and two pivotal randomized trial with the Watchman Device. The results regarding risk reduction for stroke have been favourable although acute complications were not infrequent. Procedural complications, which are mainly related to transseptal puncture and device implantation, include air embolism, pericardial effusions/tamponade and device embolization. Knowledge of nature, management and prevention of complications should minimize the risk of complications and allow transcatheter left atrial appendage closure to emerge as a therapeutic option for patients with atrial fibrillation at risk for cardioembolic stroke. | Sven M bius-Winkler Nicolas Majunke Marcus Sandri Norman Mangner Axel Linke Gregg W Stone Ingo D hnert Gerhard Schuler Peter B Sick | 2015 | World Journal of Cardiology2015，7，2： | 14 |
| 2 | Factors associated with long-term survival after liver transplantation:A retrospective cohort study显示文摘AIM To identify predictive factors associated with long-term patient and graft survival(> 15 years) in liver transplant recipients.METHODS Medical charts of all de novo adult liver transplant recipients(n = 140) who were transplanted in Hamburg between 1997 and 1999 were retrospectively reviewed.In total,155 transplantations were identified in this time period(15 re-transplantations).Twenty-six orthotopic liver transplant(OLT) recipients were early lost to followup due to moving to other places within 1 year after transplantation.All remaining 114 patients were included in the analysis.The following recipient factors were analysed:Age,sex,underlying liver disease,pre-OLT body mass index(BMI),and levels of alanine aminotransferase(ALT),bilirubin,creatinine and gammaglutamyltransferase(gamma-GT),as well as warm and cold ischemia times.Furthermore,the following donor factors were assessed:Age,BMI,cold ischemia time and warm ischemia time.All surviving patients were followed until December 2014.We divided patients into groups according to their underlying diagnosis:(1) hepatocellularcarcinoma(n = 5,4%);(2) alcohol toxic liver disease(n = 25,22.0%);(3) primary sclerosing cholangitis(n = 6,5%);(4) autoimmune liver diseases(n = 7,6%);(5) hepatitis C virus cirrhosis(n = 15,13%);(6) hepatitis B virus cirrhosis(n = 21,19%);and(7) other(n = 35,31%).The group 'other' included rare diagnoses,such as acute liver failure,unknown liver failure,stenosis and thrombosis of the arteria hepatica,polycystic liver disease,Morbus Osler and Caroli disease.RESULTS The majority of patients were male(n = 70,61%).Age and BMI at the time point of transplantation ranged from 16 years to 69 years(median:53 years) and from 15 kg/m^2 to 33 kg/m^2(median:24),respectively.Sixty-six OLT recipients(58%) experienced a follow-up of 15 years after transplantation.Recipient's age(P = 0.009) and BMI(P = 0.029) were identified as risk factors for death by χ~2-test.Kaplan-Meier analysis confirmed BMI or age above the median as predictors of decreased long-term survival(P = 0.008 and P = 0.020).Hepatitis B as underlying disease showed a trend for improved long-term survival(P = 0.049,χ~2-test,P = 0.055;Kaplan-Meier analysis,Log rank).Pre-transplant bilirubin,creatinine,ALT and gamma-GT levels were not associated with survival in these patients of the pre-era of the model of end stage liver disease.CONCLUSION The recipients' age and BMI were predictors of longterm survival after OLT,as well as hepatitis B as underlying disease.In contrast,donors' age and BMI were not associated with decreased survival.These findings indicate that recipient factors especially have a high impact on long-term outcome after liver transplantation. | Sven Pischke Marie C Lege Moritz von Wulffen Antonio Galante Benjamin Otto Malte H Wehmeyer Uta Herden Lutz Fischer Bjorn Nashan Ansgar W Lohse Martina Sterneck | 2017 | World Journal of Hepatology2017，9，8： | 5 |
| 3 | Spatial targeting of payments for environmental services: A tool for boosting conservation benefits显示文摘 | Tobias Wünscher Stefanie Engel Sven Wunder | 2007 | Ecological Economics2007，，4： | 3 |
| 4 | Spatial targeting of payments for environmental services: A tool for boosting conservation benefits显示文摘 | Tobias Wünscher Stefanie Engel Sven Wunder | 2007 | Ecological Economics2007，，4： | 2 |
| 5 | Emission from quantum-dot high-β microcavities: transition from spontaneous emission to lasing and the effects of superradiant emitter coupling显示文摘Measured and calculated results are presented for the emission properties of a new class of emitters operating in the cavity quantum electrodynamics regime.The structures are based on high-finesse GaAs/AlAs micropillar cavities,each with an active medium consisting of a layer of InGaAs quantum dots(QDs)and the distinguishing feature of having a substantial fraction of spontaneous emission channeled into one cavity mode(highβ-factor).This paper demonstrates that the usual criterion for lasing with a conventional(lowβ-factor)cavity,that is,a sharp non-linearity in the input–output curve accompanied by noticeable linewidth narrowing,has to be reinforced by the equal-time second-order photon autocorrelation function to confirm lasing.The paper also shows that the equal-time second-order photon autocorrelation function is useful for recognizing superradiance,a manifestation of the correlations possible in high-βmicrocavities operating with QDs.In terms of consolidating the collected data and identifying the physics underlying laser action,both theory and experiment suggest a sole dependence on intracavity photon number.Evidence for this assertion comes from all our measured and calculated data on emission coherence and fluctuation,for devices ranging from light-emitting diodes(LEDs)and cavity-enhanced LEDs to lasers,lying on the same two curves:one for linewidth narrowing versus intracavity photon number and the other for g(2)(0)versus intracavity photon number. | Sören Kreinberg Weng W Chow Janik Wolters Christian Schneider Christopher Gies Frank Jahnke Sven Höfling Martin Kamp Stephan Reitzenstein 无 | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 6 | Long-term research and development needs for wind energy for the time frame 2000-2020显示文摘 | SVEN ERIK T PATRICIA W | 2002 | Wind Energy2002，5，1： | 1 |
| 7 | Globslization and the Open Economy显示文摘 | Arndt Sven W | 1997 | North American Journal of Economics and Finance1997，8，1： | 1 |
| 8 | Designing Payments for Environmental Services in Theory and Practice: An Overview of the Issues 显示文摘 | Stefanie E Stefano P Sven W | 2008 | Ecological Economics2008，65，： | 1 |
| 9 | Globalization and the Open Economy显示文摘 | Arndt Sven W | 1997 | North American Joumal of Economics and Finance 81997，，： | 1 |
| 10 | Inhibition of P - glycoprotein by newer antidepressants 显示文摘 | Johanna W Sven -Maria GD Meret MF | 2002 | J Pharm Exp Ther2002，305，： | 1 |
| 11 | Payments for Environmental Services: Some Nuts and Bolts显示文摘 | Sven W | 2005 | CIFOR Occasional Paper2005，，42： | 1 |
| 12 | Stable internalreference genes for normalization of real-time RT-PCR in tobacco (Nicotiana tabacum) during development andabiotic stress 显示文摘 | Gregor W Schmidt Sven K | 2010 | Mol Genet Genomics2010，283，3： | 1 |
| 13 | RFID tags for identifying and verifying agrochemicals in food traceability systems显示文摘 | Peers Sven Gasparin C P Blackburn D W K etal | 2009 | Precision Agric2009，，10： | 1 |
| 14 | Synthetic seismograms:a finite difference approach显示文摘 | KELLY K R WARD R W SVEN Treitel | 1976 | Geophysics1976，41，1： | 1 |
| 15 | Super-specialization and the Gains from Trade显示文摘 | Arndt Sven W | 1998 | Contemporary Economic Policy1998，，4： | 1 |
| 16 | Different HER2 Protein Expression Profiles Aid in the Histologic Differential Diagnosis Be-tween Urothelial Carcinoma In Situ(CIS)and Non-CIS Condi-tions(Dysplasia and Reactive Atypia)of the Urinary Bladder Muco-sa显示文摘 | Sven Gunia Stefan Koch Oliver W | | 0，，06： | 1 |
| 17 | Payments for Environmental Services: Some Nuts and Bolts显示文摘 | Sven W | 2005 | CIFOROccasional Paper2005，，： | 1 |
| 18 | Synthetic seismograms : a finite-difference approach 显示文摘 | KELLY K R WARD R W SVEN T | 1976 | Geophysics1976，41，1： | 1 |
| 19 | Stable internal reference genes for normalization of real-time RT-PCR in tobacco(Nieotiana tabacum)during development and abiotic stress显示文摘 | Gregor W Schmidt Sven K | 2010 | Mo I Genet Genomics2010，283，3： | 1 |
| 20 | The prevalence of gestational dia- betes in advanced economies 显示文摘 | Sven S Christina B Marion W | 2012 | Journal of Perinatal Medicine2012，40，5： | 1 |
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