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| 1 | Cardiac implications of thrombotic thrombocytopenic purpura显示文摘Thrombotic thrombocytopenic purpura(TTP) is a multisystem disorder that essentially can affect any organ in the human body. The hallmark of the pathogenesis in TTP is the large von Willebrand factor multimers on plateletmediated micro-thrombi formation, leading to microvascular thrombosis.Autopsy studies showed that cardiac arrest and myocardial infarction are the most common immediate causes of death in these patients. Clinical manifestations of cardiac involvement in TTP vary dramatically, from asymptomatic elevation of cardiac biomarkers, to heart failure, MI and sudden cardiac death. There is limited knowledge about optimal cardiac evaluation and management in patients with TTP. The absence of typical cardiac symptoms,combined with complicated multi-organ involvement in TTP, may contribute to the under-utilization of cardiac evaluation and treatment. Prompt diagnosis and timely initiation of effective therapy could be critically important in selected cases. Based on our experience and this review of the literature, we developed several recommendations for focused cardiac evaluation for patients with acute TTP:(1) patients with suspected or confirmed TTP should be screened for the potential presence of cardiac involvement with detailed history and physical,electrocardiogram and cardiac enzymes;(2) clinical deterioration of TTP patients warrants immediate cardiac reevaluation;(3) TTP patients with clinical evidence of cardiac involvement should be monitored for telemetry, cardiac biomarkers and evaluated with transthoracic echocardiography. These patients require urgent targeted TTP treatment as well as cardiac-specific treatment. Aspirin therapy is indicated for all TTP patients. Since epicardial coronary artery involvement is rare, cardiac catheterization is usually not required, given the high risk for hemorrhage and kidney injury;(4) we recommend evidence-based medical therapy for ischemic symptoms and heart failure. TTP patients with evidence of cardiac involvement would also benefit from routine cardiology follow up during remission. | Szymon L Wiernek Bo Jiang Gregory M Gustafson Xuming Dai | 2018 | World Journal of Cardiology2018，10，12： | 2 |
| 2 | Characterizinghydro-thermal compression behavior of aspen wood strands显示文摘 | Cheng Zhou Gregory D Smith1 Chunping Dai | 2009 | Wood Science2009，63，5： | 1 |
| 3 | A Particle Filter without Dynamics for Robust 3D Face Tracking显示文摘 | La Le Dai Xiang-tian Hager Gregory | 2004 | Proceedings of the 2004 Conference on Conmputer Vision and Pattern Recognition Workshop (CVPRW''04)2004，5，6： | 1 |
| 4 | Baker, Merlin L Bruening,High-Capacity Purification of His-tagged Proteins by Affinity Membranes Containing Functionalized Polymer Brushes显示文摘 | Parul Jain Lei Sun Jinhua Dai Gregory L | 2007 | Biomacromolecules2007，8，： | 1 |
| 5 | OptJmal resource allocation for maximizing performance and reliability in tree-structured grid services显示文摘 | Dai Yuanshun Levitin Gregory | 2007 | IEEE Trans on Reliability2007，56，3： | 1 |
| 6 | OptinM service task par- tition and distribution in grid system with star topology 显示文摘 | Gregory Levitin Dai Yuan-Shun | 2008 | Reliability Engineering and System Safety2008，93，1： | 1 |
| 7 | Reliability and performance of tree-structured grid services 显示文摘 | Dai Yuanshun Levitin Gregory | 2006 | IEEE Trans on Reliability2006，55，2： | 1 |
| 8 | Reliability and performance of star topology grid service with precedence constraints on subtask execution显示文摘 | Levitin Gregory Dai Yuanshun Hanoch Ben-Haim | 2006 | IEEE Trans on Reliability2006，55，3： | 1 |
| 9 | Plaque herniation after stenting the culprit lesion with myocardial bridging in ST elevation myocardial infarction: A case report显示文摘BACKGROUND Myocardial bridging(MB)is increasingly recognized to stimulate atherogenesis,which may contribute to an acute coronary syndrome.Stenting the coronary segment with MB has been recognized to have an increased risk of in-stent restenosis,stent fracture and coronary perforation.The safety and efficacy of stenting the culprit lesion with overlaying MB in ST elevation myocardial infarction(STEMI)as primary reperfusion therapy has not been established.CASE SUMMARY We reported a patient who presented with inferior STEMI with a culprit lesion of an acute thrombotic occlusion in the right coronary artery and thrombolysis and thrombin inhibition in myocardial infarction 0 flow.After the stent placement during primary percutaneous coronary intervention,intravascular ultrasound revealed MB overlying the stented segment where heavy atherosclerotic plaque were present.Likely due to the combination of plaque herniation or prolapse caused by MB,as well as local increased inflammation and thrombogenicity,acute stent thrombosis occurred at this region,which led to acute stent failure.The patient required an emergent repeated cardiac catheterization and placing a second layer of stent to enhance the radial strength and reduce the inter-strut space.CONCLUSION Plaque herniation or prolapse after stenting a MB segment in STEMI is a potential etiology for acute stent failure. | Jeffrey Ma Gregory M Gustafson Xuming Dai | 2020 | World Journal of Cardiology2020，12，2： | 1 |
| 10 | Service reliability and performance in grid system with star topology 显示文摘 | Levitin Gregory Dai Yuanshun | 2007 | Reliability Engineering and System Safety2007，92，1： | 1 |
| 11 | Performance and reliability of tree-structured grid services considering data dependence and failure correlation 显示文摘 | Dai Yuanshun Levitin Gregory Trivedi Kishor S | 2007 | IEEE Trans on Reliability2007，56，7： | 1 |
| 12 | GrapevineXL reliably predicts multi-annual dynamics of vine water status, berry growth, and sugar accumulation in vineyards显示文摘Climate and water availability greatly affect each season’s grape yield and quality.Using models to accurately predict environment impacts on fruit productivity and quality is a huge challenge.We calibrated and validated the functional-structural model,GrapevineXL,with a data set including grapevine seasonal midday stem water potential(�xylem),berry dry weight(DW),fresh weight(FW),and sugar concentration per volume([Sugar])for a wine grape cultivar(Vitis vinifera cv.Cabernet Franc)in field conditions over 13 years in Bordeaux,France.Our results showed that the model could make a fair prediction of seasonal�xylem and good-to-excellent predictions of berry DW,FW,[Sugar]and leaf gas exchange responses to predawn and midday leaf water potentials under diverse environmental conditions with 14 key parameters.By running virtual experiments to mimic climate change,an advanced veraison(i.e.the onset of ripening)of 14 and 28 days led to significant decreases of berry FW by 2.70%and 3.22%,clear increases of berry[Sugar]by 2.90%and 4.29%,and shortened ripening duration in 8 out of 13 simulated years,respectively.Moreover,the impact of the advanced veraison varied with seasonal patterns of climate and soil water availability.Overall,the results showed that the GrapevineXL model can predict plant water use and berry growth in field conditions and could serve as a valuable tool for designing sustainable vineyard management strategies to cope with climate change. | Weiwei Yang Junqi Zhu Cornelis van Leeuwen Zhanwu Dai Gregory AGambetta | 2023 | Horticulture Research2023，10，6： | 0 |
| 13 | Intra-procedural arrhythmia during cardiac catheterization: A systematic review of literature显示文摘BACKGROUND Cardiac catheterization is among the most performed medical procedures in the modern era.There were sporadic reports indicating that cardiac arrhythmias are common during cardiac catheterization,and there are risks of developing serious and potentially life-threatening arrhythmias,such as sustained ventricular tachycardia(VT),ventricular fibrillation(VF)and high-grade conduction disturbances such as complete heart block(CHB),requiring immediate interventions.However,there is lack of systematic overview of these conditions.AIM To systematically review existing literature and gain better understanding of the incidence of cardiac arrhythmias during cardiac catheterization,and their impact on outcomes,as well as potential approaches to minimize this risk.METHODS We applied a combination of terms potentially used in reports describing various cardiac arrhythmias during common cardiac catheterization procedures to systematically search PubMed,EMBASE and Cochrane databases,as well as references of full-length articles.RESULTS During right heart catheterization(RHC),the incidence of atrial arrhythmias(premature atrial complexes,atrial fibrillation and flutter)was low(<1%);these arrhythmias were usually transient and self-limited.RHC associated with the development of a new RBBB at a rate of 0.1%-0.3%in individuals with normal conduction system but up to 6.3%in individuals with pre-existing left bundle branch block.These patients may require temporary pacing due to transient CHB.Isolated premature ventricular complexes or non-sustained VT are common during RHC(up to 20%of cases).Sustained ventricular arrhythmias(VT and/or VF)requiring either withdrawal of catheter or cardioversion occurred infrequently(1%-1.3%).During left heart catheterizations(LHC),the incidence of ventricular arrhythmias has declined significantly over the last few decades,from 1.1%historically to 0.1%currently.The overall reported rate of VT/VF in diagnostic LHC and coronary angiography is 0.8%.The risk of VT/VF was higher during percutaneous coronary interventions for stable coronary artery disease(1.1%)and even higher for patients with acute myocardial infarctions(4.1%-4.3%).Intravenous adenosine and papaverine bolus for fractional flow reserve measurement,as well as intracoronary imaging using optical coherence tomography have been reported to induce VF.Although uncommon,LHC and coronary angiography were also reported to induce conduction disturbances including CHB.CONCLUSION Cardiac arrhythmias are common and potentially serious complications of cardiac catheterization procedures,and it demands constant vigilance and readiness to intervene during procedures. | Fatima A Shaik David J Slotwiner Gregory M Gustafson Xuming Dai | 2020 | World Journal of Cardiology2020，12，6： | 0 |
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