240 results on '"A. Thul"'
Search Results
2. Microcontroller Based Wireless Patient Health Monitoring System
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Anjali Thul, Shilpa Katre, Pratik Tokeka, and Himani Khedulkar
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Microcontroller ,Computer science ,business.industry ,020209 energy ,Embedded system ,0202 electrical engineering, electronic engineering, information engineering ,Wireless ,020201 artificial intelligence & image processing ,Monitoring system ,02 engineering and technology ,business - Abstract
This paper represents the design and simulation of a wireless patient health monitoring system. Generally, in the hospitals where patient’s body temperature needs to be continuously monitored, which is usually done by a doctor or other paramedical staff by continuously observing the temperature, pulse rate, blood pressure and maintaining its record. This is a very monotonous routine and can really be nerve-racking, especially in overcrowded hospitals. The primary function of this system is to monitor the temperature, blood pressure and pulse rate of a patient’s body, and transmit the information wirelessly to the doctor’s office on the LCD display unit. In this advanced system, a transmitting unit constantly scan patient’s body temperature, blood pressure and pulse rate through digital sensors, and shows them on the transmitter LCD. At the receiving end, a receiver is used to collect the data, decode it and feed them to another microcontroller which then displays it on the doctor’s LCD screen. The receiver unit is kept in the doctor’s office to constantly show the patient’s body temperature, blood pressure and pulse rate wirelessly. An alarm is also activated at the receiver end where the doctor will be, and is activated when the patient’s temperature, blood pressure and pulse rate goes below or above the normal human threshold value, which are 37°C, SBP- less than 120 mm Hg, DBP- less than 80mm Hg and 70 beats per minute. An SMS will be sent to the doctor, just in case he or she is outside the area and to present as a path for continuous update. The advanced system was simulated using Proteus software and programs written in Embedded C language. The result achieved shows a systematic method of relating information to the doctor on duty for urgent attention to patients.
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- 2021
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3. Omega-3 Polyunsaturated Fatty Acids Decrease Aortic Valve Disease Through the Resolvin E1 and ChemR23 Axis
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Hildur Arnardottir, Peter Sjövall, Miguel Carracedo, Oscar Plunde, Silke Thul, Magnus Bäck, Gonzalo Artiach, Anders Franco-Cereceda, Craig E. Wheelock, and Andres Laguna-Fernandez
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Male ,Aortic valve ,medicine.medical_specialty ,Mice, Knockout, ApoE ,Inflammation ,030204 cardiovascular system & hematology ,heart valve diseases ,OMEGA-3 POLYUNSATURATED FATTY ACIDS ,lipids ,Mice ,03 medical and health sciences ,calcification, physiologic ,0302 clinical medicine ,Original Research Articles ,Physiology (medical) ,Internal medicine ,medicine ,Animals ,Humans ,030304 developmental biology ,0303 health sciences ,business.industry ,valvular heart disease ,Resolvin E1 ,Lipid signaling ,medicine.disease ,Aortic Valve Disease ,fatty acids, omega-3 ,medicine.anatomical_structure ,Eicosapentaenoic Acid ,inflammation ,Aortic valve stenosis ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,Cardiology ,Female ,Receptors, Chemokine ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Signal Transduction ,Calcification - Abstract
Supplemental Digital Content is available in the text., Background: Aortic valve stenosis (AVS), which is the most common valvular heart disease, causes a progressive narrowing of the aortic valve as a consequence of thickening and calcification of the aortic valve leaflets. The beneficial effects of omega-3 polyunsaturated fatty acids (n-3 PUFAs) in cardiovascular prevention have recently been demonstrated in a large randomized, controlled trial. In addition, n-3 PUFAs serve as the substrate for the synthesis of specialized proresolving mediators, which are known by their potent beneficial anti-inflammatory, proresolving, and tissue-modifying properties in cardiovascular disease. However, the effects of n-3 PUFA and specialized proresolving mediators on AVS have not yet been determined. The aim of this study was to identify the role of n-3 PUFA–derived specialized proresolving mediators in relation to the development of AVS. Methods: Lipidomic and transcriptomic analyses were performed in human tricuspid aortic valves. Apoe−/− mice and wire injury in C57BL/6J mice were used as models for mechanistic studies. Results: We found that n-3 PUFA incorporation into human stenotic aortic valves was higher in noncalcified regions compared with calcified regions. Liquid chromatography tandem mass spectrometry–based lipid mediator lipidomics identified that the n-3 PUFA–derived specialized proresolving mediator resolvin E1 was dysregulated in calcified regions and acted as a calcification inhibitor. Apoe−/− mice expressing the Caenorhabditis elegans Fat-1 transgene (Fat-1tg×Apoe−/−), which enables the endogenous synthesis of n-3 PUFA and increased valvular n-3 PUFA content, exhibited reduced valve calcification, lower aortic valve leaflet area, increased M2 macrophage polarization, and improved echocardiographic parameters. Finally, abrogation of the resolvin E1 receptor ChemR23 enhanced disease progression, and the beneficial effects of Fat-1tg were abolished in the absence of ChemR23. Conclusions: n-3 PUFA-derived resolvin E1 and its receptor ChemR23 emerge as a key axis in the inhibition of AVS progression and may represent a novel potential therapeutic opportunity to be evaluated in patients with AVS.
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- 2020
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4. Pelvic Venous Disease: Identifying This Commonly Overlooked Cause of Chronic Pelvic Pain in Women
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Susan Thul, Stephen Daugherty, and Sandra French
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Advanced and Specialized Nursing ,medicine.medical_specialty ,Referral ,business.industry ,Pelvic pain ,030204 cardiovascular system & hematology ,Affect (psychology) ,Pelvic congestion syndrome ,medicine.disease ,body regions ,03 medical and health sciences ,0302 clinical medicine ,Quality of life (healthcare) ,Multidisciplinary approach ,Health care ,Medicine ,030212 general & internal medicine ,medicine.symptom ,business ,Venous disease ,Intensive care medicine - Abstract
The causes of chronic pelvic pain (CPP) in women can be multifactorial and significantly affect quality of life. Finding the cause(s) for CPP often takes a multidisciplinary approach. One commonly overlooked cause of CPP is pelvic venous disease (PVD). The causal relationship between PVD and CPP has been well-documented in the literature, but with limited assessment or treatment guidelines to advise health care providers, there continues to be a limited understanding of PVD. This article aims to ensure nurse practitioners are well equipped to recognize women presenting with symptoms suggestive of PVD and expedite referral when needed for further evaluation.
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- 2020
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5. ISHLT consensus statement on donor organ acceptability and management in pediatric heart transplantation
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Renata Shih, Karen Lord, Manuela Camino, Jonathan Smith, Angie Scales, Josef Thul, Dimpna C. Albert, Sanjeev Kumar Khulbey, László Ablonczy, Anna Joong, Sharon Chen, Jacqueline M. Smits, Steven J. Kindel, Oliver Miera, Zdenka Reinhardt, Jens Böhmer, Robert G. Weintraub, Matthew Fenton, Jennifer Conway, Anne I. Dipchand, Michael A. McCulloch, Mariska Kemna, Kenneth R. Knecht, Ryan R. Davies, Javier Castro, Richard Kirk, Melanie D. Everitt, Claire Irving, Jonathan N. Johnson, Deipanjan Nandi, Lara Danziger-Isakov, Peta M. A. Alexander, Maryanne R.K. Chrisant, Dipankar Gupta, Luis Garcia-Guereta, Ashwin K. Lal, Gary Beasley, Gretchen B. Chapman, Janet Scheel, Justin Godown, Steve Zangwill, Susan W. Denfield, Antonio Amodeo, Warren A. Zuckerman, Shahnawaz Amdani, Jeffrey G. Gossett, Estela Azeka, Brian Feingold, David N. Rosenthal, Urs Christen, Iki Adachi, Oliver Niesse, Thomas Möller, Jean A Ballweg, Alicia Pérez-Blanco, Martin Schweiger, Ann Punnoose, Bibhuti B. Das, David M. Peng, Daniel Zimpfer, Alison Butler, and Kimberly Y. Lin
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Consensus ,Tissue and Organ Procurement ,Scoring system ,Waiting Lists ,Statement (logic) ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,030230 surgery ,Risk Assessment ,Donor Selection ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Cardiopulmonary resuscitation ,Primary graft failure ,Child ,Intensive care medicine ,Transplantation ,business.industry ,Graft Survival ,Tissue Donors ,Donor heart ,Heart Transplantation ,Surgery ,Pediatric heart transplantation ,Waitlist mortality ,Cardiology and Cardiovascular Medicine ,business - Abstract
The number of potential pediatric heart transplant recipients continues to exceed the number of donors, and consequently the waitlist mortality remains significant. Despite this, around 40% of all donated organs are not used and are discarded. This document (62 authors from 53 institutions in 17 countries) evaluates factors responsible for discarding donor hearts and makes recommendations regarding donor heart acceptance. The aim of this statement is to ensure that no usable donor heart is discarded, waitlist mortality is reduced, and post-transplant survival is not adversely impacted.
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- 2020
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6. Electromagnetic Study of Direct-Driven Wind Turbine Generators by Coupled Field-Circuit Simulations and Full-Scale Bench Tests
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Christoph Meier, Fabian Müller, Christoph Mülder, Kay Hameyer, and Andreas Thul
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Physics ,Generator (circuit theory) ,Wind power ,business.industry ,Harmonics ,Harmonic ,Waveform ,Mechanical engineering ,Air gap (plumbing) ,business ,Turbine ,Excitation - Abstract
Studying the electromagnetic behavior of gearless wind turbines, related to parasitic excitation of vibrations and audible noise emission, comes to the fore of science. Reliable simulation and testing methods are essential in this context. The electrical drive train, consisting of the generator that is coupled to a full-scale converter in modern direct-driven turbines, is the first component in the electrical energy supply chain. Particularly, the modeling of its interaction is focused on to study the harmonic content of the generator currents and excited forces in the air gap. Therefore, a weak numerical field-coupling method is used in this contribution to consider both, the current waveform resulting from the coupling and the magnetic forces computed by Finite Element Analyses (FEA). Measurement data, that is collected by means of a 4MW full-scale test rig, is considered to motivate and validate the proposed model approach. Moreover, the anomalous electromagnetic design of the considered generator is studied by the field-circuit simulation and corresponding magnetic air gap force harmonics are analyzed.
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- 2021
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7. Online Examination System – A Web-Based Application
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Vaishali C. Asole, Priya D. Armarkar, and Samiksha S. Thul
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World Wide Web ,Computer science ,business.industry ,Web application ,business ,System a - Published
- 2021
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8. Fetal Echocardiography in Predicting Postnatal Outcome in Borderline Left Ventricle
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Aline Wolter, Christoph Berg, C. Vorisek, Ulrich Gembruch, Josef Thul, Roland Axt-Fliedner, Hakan Akintürk, Andrii Kurkevych, Dietmar Schranz, Uygar Yürökür, Helge Hudel, Lucy Bischofsberger, and Christian Jux
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Fetus ,medicine.medical_specialty ,030219 obstetrics & reproductive medicine ,Receiver operating characteristic ,medicine.diagnostic_test ,business.industry ,Endocardial fibroelastosis ,Retrospective cohort study ,Prenatal diagnosis ,030204 cardiovascular system & hematology ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Ventricle ,Internal medicine ,medicine ,Cardiology ,Radiology, Nuclear Medicine and imaging ,Prospective cohort study ,business ,Fetal echocardiography - Abstract
Prenatal prediction of postnatal univentricular versus biventricular circulation in patients with borderline left ventricle (bLV) remains challenging. This study investigated prenatal fetal echocardiographic parameters and postnatal outcome of patients with a prenatally diagnosed bLV. We report a retrospective study of bLV patients at four prenatal centers with a follow-up of one year. BLV was defined as z-scores of the left ventricle (LV) between -2 and -4. Single-ventricle palliation (SVP), biventricular repair (BVR), and no surgical or catheter-based intervention served as the dependent outcome. Prenatal ultrasound parameters were used as independent variables. Cut-off values from receiver operating characteristic curves (ROC) were determined for significant discrimination between outcomes. A total of 54 patients were diagnosed with bLV from 2010 to 2018. All were live births. Out of the entire cohort, 8 (15 %) received SVP, 34 (63 %) BVR, and 12 (22 %) no intervention. There was no significant difference with regard to genetic or extracardiac anomalies. There were significantly more patients with endocardial fibroelastosis (EFE) in the SVP group compared to the BVR group (80 % vs. 10 %), (p 0.001). Apex-forming LV (100 % vs. 70 %) and lack of retrograde arch flow (20 % vs. 80 %) were associated with no intervention (p 0.001). With respect to BVR vs. SVP, the LV sphericity index provided the highest specificity (91.7 %) using a cutoff value of ≤ 0.5. The majority of bLV patients maintained biventricular circulation. EFE, retrograde arch flow, and LV sphericity can be helpful parameters for counseling parents and further prospective studies can be developed.ZIEL: Die pränatale Vorhersage eines postnatal univentrikulären versus biventrikulären Kreislaufs bei Föten mit grenzwertigem linkem Ventrikel (bLV, “borderline left ventricle”) bleibt eine Herausforderung. Diese Studie untersuchte pränatale fetale echokardiografische Parameter und den postnatalen Outcome von Patienten mit einer pränatal diagnostizierten bLV. Wir berichten über eine retrospektive Studie von Föten mit bLV an 4 Pränatalzentren mit einer Nachverfolgung von einem Jahr. BLV wurde definiert als z-Scores des linken Ventrikels (LV) zwischen –2 und –4. Als abhängiger Outcome dienten die Einzelventrikel-Palliation (SVP), die biventrikuläre Korrektur (BVR) und keine chirurgische oder Katheter-basierte Intervention. Die pränatalen Ultraschallparameter wurden als unabhängige Variablen verwendet. Die Cut-off-Werte aus den Receiver-Operating-Characteristic (ROC) -Kurven wurden für eine signifikante Diskriminierung zwischen den Outcomes ermittelt. Von 2010–2018 wurden insgesamt 54 Patienten mit bLV diagnostiziert. Alle waren Lebendgeburten. Von der gesamten Kohorte erhielten 8 (15 %) SVP, 34 (63 %) BVR und 12 (22 %) keine Intervention. Es gab keinen signifikanten Unterschied in Bezug auf genetische oder extrakardiale Anomalien. Es gab signifikant mehr Patienten mit endokardialer Fibroelastose (EFE) in der SVP- im Vergleich zu BVR-Gruppe (80 % vs. 10 %; p 0,001). Ein an der Herzspitzenbildung beteiligter LV (100 % vs. 70 %) und fehlender retrograder Bogenfluss (20 % vs. 80 %) waren mit keiner Intervention assoziiert (p 0,001). Für die Differenzierung von BVR vs. SVP lieferte der LV-Sphärizitätsindex bei einem Cut-off-Wert von ≤ 0,5 die höchste Spezifität (91,7 %). Die Mehrheit der bLV-Patienten hielt einen biventrikulären Kreislauf aufrecht. EFE, retrograder Bogenfluss und LV-Sphärizität können hilfreiche Parameter bei der Beratung der Eltern und der Entwicklung weiterer prospektiver Studien sein.
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- 2021
9. LWIR-THz Double Resonance Spectroscopy for Remote Identification of Trace Gases
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Robert Bernath, Martin Richardson, Danielle Reyes, Henry O. Everitt, Daniel Thul, and Max Schneiderman
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Identification (information) ,Materials science ,Terahertz radiation ,business.industry ,Resonance ,Optoelectronics ,Spectroscopy ,business ,Trace gas - Abstract
In preparation for remote atmospheric detection, preliminary double resonance spectroscopic measurements were made of CH3Cl and CH3F using a LWIR pump to excite transient vibrational states and a THz source to probe the rotational levels.
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- 2021
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10. Natural history of pulmonary atresia with intact ventricular septum (PAIVS) and critical pulmonary stenosis (CPS) and prediction of outcome
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Ivonne Bedei, Christian Enzensberger, Jan Degenhardt, Aline Wolter, Natalia Markert, Rüdiger Stressig, Oliver Graupner, J. Schenk, Roland Axt-Fliedner, Josef Thul, Markus Khalil, Andrii Kurkevych, J. Ritgen, Jan Sebastian Wolter, Christian Jux, and C. Vorisek
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Heart Defects, Congenital ,Male ,medicine.medical_specialty ,030204 cardiovascular system & hematology ,Ultrasonography, Prenatal ,Maternal-Fetal Medicine ,Critical pulmonary stenosis ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Prenatal Diagnosis ,Mitral valve ,Internal medicine ,medicine ,Humans ,030219 obstetrics & reproductive medicine ,Intention-to-treat analysis ,Fetal echocardiography ,medicine.diagnostic_test ,business.industry ,Pulmonary atresia with intact ventricular septum ,Biventricular outcome ,Pregnancy Outcome ,Obstetrics and Gynecology ,General Medicine ,medicine.disease ,Outcome (probability) ,ddc ,Pulmonary Valve Stenosis ,Natural history ,Stenosis ,Treatment Outcome ,medicine.anatomical_structure ,Echocardiography ,Pulmonary Atresia ,Cohort ,Cardiology ,Female ,business ,Pulmonary atresia - Abstract
Objectives To analyse prenatal parameters predicting biventricular (BV) outcome in pulmonary atresia with intact ventricular septum/critical pulmonary stenosis (PAIVS/CPS). Methods We evaluated 82 foetuses from 01/08 to 10/18 in 3 centres in intervals 1 ( 30 weeks). Results 61/82 (74.4%) were livebirths, 5 (8.2%) lost for follow-up, 3 (4.9%) had compassionate care leaving 53 (64.6% of the whole cohort and 86.9% of livebirths) with intention to treat. 9 died, 44/53 (83.0%) survived. 24/38 (63.2%) with information on postnatal outcome had BV outcome, 14 (36.8%) non-BV outcome (2 × 1.5 circulation). One with BV outcome had prenatal valvuloplasty. Best single parameter for BV outcome was tricuspid/mitral valve (TV/MV) ratio (AUC 0.93) in intervals 2 and 3 (AUC 0.92). Ventriculo-coronary-arterial communications (VCAC) were present in 11 (78.6%) in non-BV outcome group vs. 2 (8.3%) in BV outcome group (p 2.5 m/s was present in BV outcome group in75.0% (18/24) vs. 14.3% (2/14) in non-BV outcome group. Including the most predictive markers (VCAC presence, TI- Vmax 1 criterion was fulfilled in all cases. After recently published criteria for foetal intervention, only 4/9 (44.4%) and 5/14 (35.7%) in our interval 2 + 3 with predicted non-BV outcome would have been candidates for intervention. Two (1 × intrauterine intervention) in interval 2, two in interval 3 reached BV outcome and one 1.5 circulation without intervention. Conclusion TV/MV ratio as simple parameter has high predictive value. After our score, non-BV outcome was correctly predicted in all cases. Criteria for foetal intervention must further be evaluated.
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- 2020
11. Precomputed Radiance Transfer for Reflectance and Lighting Estimation
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Lubor Ladicky, Daniel Thul, Vagia Tsiminaki, and Marc Pollefeys
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Computer science ,Image matching ,business.industry ,020207 software engineering ,02 engineering and technology ,Albedo ,Reflectivity ,Colored ,Precomputed Radiance Transfer ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Computer vision ,Shading ,Artificial intelligence ,business ,Reflection mapping ,Surface reconstruction - Abstract
Decomposing scenes into reflectance and lighting is an important task for applications such as relighting, image matching or content creation. Advanced light transport effects like occlusion and indirect lighting are often ignored, leading to subpar decompositions in which the albedo needs to compensate for insufficiencies in the estimated shading. We show how to account for these advanced lighting effects by utilizing precomputed radiance transfer to estimate reflectance and lighting. Given the geometry of an object and one or multiple images, our method reconstructs the object’s surface reflectance properties—such as its albedo and glossiness—as well as a colored lighting environment map. Evaluation on synthetic and real data shows that incorporation of indirect light leads to qualitatively and quantitatively improved results.
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- 2020
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12. Experience of nurse practitioners performing colonoscopy after endoscopic training in more than 1,000 patients
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Simon C. Mathews, A. N. Kalloo, Monica Riegert, Bonny Thul, Monica Nandwani, Mouen A. Khashab, and Angela Chang Chiu
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medicine.medical_specialty ,Original article ,medicine.diagnostic_test ,Nurse practitioners ,Colorectal cancer ,business.industry ,General surgery ,education ,MEDLINE ,Colonoscopy ,Retrospective cohort study ,medicine.disease ,Endoscopy ,Workforce ,medicine ,Pharmacology (medical) ,lcsh:Diseases of the digestive system. Gastroenterology ,lcsh:RC799-869 ,Adverse effect ,business - Abstract
Background and study aims The demand for screening colonoscopy has continued to rise over the past two decades. As a result, the current workforce of gastroenterologists is unable to meet the needs for colorectal cancer (CRC) screening. Therefore, solutions are needed to improve this disparity, with non-physician endoscopists being a potential option. However, current literature on the performance of non-physicians in endoscopy is limited. The aim of this study was to assess the quality of colonoscopy performed by three gastrointestinal fellowship-trained nurse practitioners (NPs). Methods This was a retrospective study performed at a single tertiary academic medical center. Colonoscopies performed by three gastrointestinal-specialized NPs after having completed training of at least 140 supervised colonoscopies were reviewed for analysis. Inclusion criteria were patients undergoing colonoscopy for colorectal cancer screening purposes. Outcomes included colonoscopy quality indicators as defined by the American Society for Gastrointestinal Endoscopy/American College of Gastroenterology Taskforce (ASGE/ACG) Taskforce. Results The study included 1,012 subjects (mean age 56.2 years, female 51.5 %, African American 73.9 %) who underwent screening colonoscopies by three NPs. Cecal intubation was successful in 997 subjects (98.5 %). Mean adenoma detection rate was 35.6 %. Mean withdrawal time was 18.9 minutes. There were no adverse events including colonic perforations or delayed post-polypectomy bleeding. Conclusions Three fellowship-trained NPs in colonoscopy in the United States satisfied the quality indicators proposed by the ASGE/ACG Task force, demonstrating that adequately trained NPs can perform colonoscopy safely and effectively. With the demand for colonoscopy exceeding the supply, non-physicians could be part of the solution to meet the demands for CRC screening.
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- 2020
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13. Clinical characteristics and outcomes of patients with adult congenital heart disease listed for heart and heart‒lung transplantation in the Eurotransplant region
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Christina Magnussen, Arjang Ruhparwar, Sebastian V. Rojas, Stefan Blankenberg, Alexander M. Bernhardt, Michel De Pauw, Katrien François, Felix Schönrath, Jacqueline M. Smits, H. Welp, Johan Van Cleemput, Paulus Kirchhof, Benedikt Schrage, Davor Miličić, Hermann Reichenspurner, Alina Goßling, László Ablonczy, Tim Sandhaus, Christoph Sinning, Peter Schenker, Jessica Weimann, Ajay Moza, Josef Thul, Julia Dumfarth, Bastian Schmack, Dorit Knappe, Arnaut Ancion, Peter Moritz Becher, Elvin Zengin, Florian Wagner, Gregor Warnecke, Assad Haneya, Olivier Van Caenegem, Dirk Westermann, Inez Rodrigus, Luise Röhrich, Michael Steinmetz, and Sandra Eifert
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Pulmonary and Respiratory Medicine ,Adult ,Heart Defects, Congenital ,Male ,medicine.medical_specialty ,Heart disease ,Heart-Lung Transplantation ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Medicine ,Humans ,030212 general & internal medicine ,Registries ,Retrospective Studies ,Mechanical ventilation ,Heart transplantation ,Transplantation ,business.industry ,Incidence ,Hazard ratio ,Middle Aged ,medicine.disease ,Europe ,Respiratory failure ,Heart failure ,Cohort ,Surgery ,Female ,Human medicine ,Morbidity ,Cardiology and Cardiovascular Medicine ,business ,Follow-Up Studies ,Lung Transplantation - Abstract
BACKGROUND: The therapeutic success in patients with congenital heart disease (CHD) leads to a growing number of adults with CHD (adult CHD [ACHD]) who develop end-stage heart failure. We aimed to determine patient characteristics and outcomes of ACHD listed for heart transplantation. METHODS: Using data from all the patients with ACHD in 20 transplant centers in the Eurotransplant region from 1999 to 2015, we analyzed patient characteristics, waiting list, and post-transplantation outcomes. RESULTS: A total of 204 patients with ACHD were listed during the study period. The median age was 38 years, and 62.3% of the patients were listed in high urgency (HU), and 37.7% of the patients were in transplantable (T)-listing status. A total of 23.5% of the patients died or were delisted owing to clinical worsening, and 75% of the patients underwent transplantation. Median waiting time for patients with HU-listing status was 4.18 months and with T-listing status 9.07 months. There was no difference in crude mortality or delisting between patients who were HU status listed and T status listed (p = 0.65). In multivariable regression analysis, markers for respiratory failure (mechanical ventilation, hazard ratio [HR]: 1.41, 95% CI: 1.11-1.81, p = 0.006) and arrhythmias (anti-arrhythmic medication, HR: 1.42, 95% CI: 1.01-2.01, p = 0.044) were associated with a higher risk of death or delisting. In the overall cohort, post-transplantation mortality was 26.8% after 1 year and 33.4% after 5 years. CONCLUSIONS: Listed patients are at high risk of death without differences in the urgency of listing. Respiratory failure requiring invasive ventilation and possibly arrhythmias requiring anti-arrhythmic medication indicate worse outcomes on waiting list. (C) 2020 International Society for Heart and Lung Transplantation. All rights reserved.
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- 2020
14. Treatment of a Severe Arterial Thrombosis of a Healthy Premature Neonatal Infant
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J. Behrje, L. Rüblinger, J. Thul, Christian Jux, and Markus Khalil
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medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,medicine.disease ,business ,Thrombosis - Published
- 2020
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15. Pulmonary Infections are Common in Patients with PAB in LV-DCM
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B. Steinbrenner, H. Akintürk, J. Thul, C. Jux, Sabine Recla, and Dietmar Schranz
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medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,In patient ,business - Published
- 2020
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16. 30-Year Long-Term Outcome of Heart Transplanted Children with Cardiomyopathy
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J. Thul, C. Jux, M. Zschirnt, A. Hahn, Stefan Rupp, Dietmar Schranz, S. Skrzypek, Mario Müller, H. Akintürk, and N. Mazhari
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Pediatrics ,medicine.medical_specialty ,business.industry ,medicine ,Cardiomyopathy ,business ,medicine.disease ,Outcome (game theory) ,Term (time) - Published
- 2020
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17. Atmospheric propagation of sub-picosecond pulses at 10 pm
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Robert Bernath, Martin Richardson, Shermineh Rostami Fairchild, Henry O. Everitt, and Daniel Thul
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Wavelength ,Work (thermodynamics) ,Materials science ,Optics ,Atmospheric propagation ,business.industry ,Picosecond ,Laser source ,Physics::Optics ,business - Abstract
This work presents the design and performance of a 10 pm sub-picosecond laser source. Initial measurements of high-intensity atmospheric propagation are also presented, which represent the first kilometer-range studies of ultrashort pulses in this wavelength regime.
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- 2020
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18. Improvement of survival in low-weight children on the Berlin Heart EXCOR ventricular assist device support†
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Tilman Humpl, Ares K. Menon, David L.S. Morales, Oliver Miera, Antonio Amodeo, and Josef Thul
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Heart Defects, Congenital ,Male ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Heart disease ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,Preoperative care ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,medicine ,Extracorporeal membrane oxygenation ,Humans ,Retrospective Studies ,Heart Failure ,business.industry ,Body Weight ,Hazard ratio ,Infant, Newborn ,Infant ,General Medicine ,medicine.disease ,Confidence interval ,030228 respiratory system ,Heart failure ,Ventricular assist device ,Cardiology ,Female ,Surgery ,Heart-Assist Devices ,Underweight ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Publications on the paediatric Berlin Heart EXCOR ventricular assist device have revealed that low body weight10 kg is a significant risk factor for mortality with children weighing5 kg being at the highest risk. However, these studies are limited to implantation periods prior to 2011. Since then, progress has been made in the optimization of patient selection and management. This study investigated whether the survival of children weighing10 kg supported with the EXCOR assist device has improved in recent years and sought to determine the risk factors for mortality.The Berlin Heart EXCOR prospective registry (n = 1832) was retrospectively reviewed between 2000 and 2017 to compare the outcomes of different weight cohorts: A (5 kg; n = 204), B (5-10 kg; n = 633) and C (10 kg; n = 995) in different eras [era 1: January 2000-December 2012 (n = 1089) and era 2: January 2013-June 2017 (n = 743)].Overall survival in groups A and B significantly increased from era 1 to era 2 (group A 51% vs 65%, P 0.001; group B 74% vs 78%, P = 0.001), whereas it remained stable in group C (78% vs 73%). In era 2, the survival of group B was not significantly different from group C. On the multivariable analysis of children weighing5 kg, congenital heart disease, preoperative extracorporeal life support and biventricular support were independently associated with increased mortality in era 1 [hazard ratio 2.04 (95% confidence interval 1.18-3.53); 2.44 (1.36-4.37) and 1.93 (1.11-3.34), respectively] but not in era 2.Paediatric EXCOR ventricular assist device therapy has significantly improved for patients weighing10 kg. Withholding a ventricular assist device is not justified on the basis of the body weight alone.
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- 2018
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19. Differential Associations for Salivary Sodium, Potassium, Calcium, and Phosphate Levels with Carotid Intima Media Thickness, Heart Rate, and Arterial Stiffness
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Mohamed Temmar, Simon N. Thornton, John Pirault, Silke Thul, Athanase Benetos, Magnus Bäck, and Carlos Labat
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Male ,medicine.medical_specialty ,Saliva ,Article Subject ,Sodium ,Potassium ,Clinical Biochemistry ,chemistry.chemical_element ,Pulse Wave Analysis ,030204 cardiovascular system & hematology ,Calcium ,Carotid Intima-Media Thickness ,Risk Assessment ,Phosphates ,03 medical and health sciences ,Vascular Stiffness ,0302 clinical medicine ,Heart Rate ,Internal medicine ,Heart rate ,Genetics ,medicine ,Humans ,Molecular Biology ,Pulse wave velocity ,Aged ,lcsh:R5-920 ,business.industry ,Biochemistry (medical) ,Age Factors ,030206 dentistry ,General Medicine ,Middle Aged ,medicine.disease ,Endocrinology ,chemistry ,Intima-media thickness ,Cardiovascular Diseases ,Arterial stiffness ,Female ,lcsh:Medicine (General) ,business ,Biomarkers ,Research Article - Abstract
Salivary biomarkers may offer a noninvasive and easy sampling alternative in cardiovascular risk evaluation. The aim of the present study was to establish associations of salivary potassium, sodium, calcium, and phosphate levels with the cardiovascular phenotype determined by carotid ultrasound and carotid-femoral pulse wave velocity and to identify possible covariates for these associations. N=241 samples of nonstimulated whole buccal saliva were obtained from subjects with (n=143; 59%) or without (n=98; 41%) hypertension. The potassium concentrations were 10-fold higher in saliva compared with plasma, whereas sodium concentrations exhibited the reverse relation between saliva and blood. There were no significant correlations between the levels of sodium, potassium, or calcium in saliva and plasma. All salivary electrolytes, except sodium, were significantly associated with age. In age-adjusted analyses, salivary potassium was significantly associated with carotid artery intima media thickness (cIMT) and carotid-femoral pulse wave velocity, and these associations were at the limit of significance in multivariate analyses including prevalent cardiovascular disease and risk factors. Body mass index was a significant confounder for salivary potassium. Salivary phosphate was significantly associated with cIMT in the multivariate analysis. Salivary potassium, calcium, and phosphate levels were significantly associated with heart rate in the univariate age-adjusted as well as in two different multivariate models, whereas no significant associations between sodium and heart rate were observed. In conclusion, the differential association of salivary electrolytes with cardiovascular phenotypes indicates that these electrolytes should be further studied for their predictive value as noninvasive biomarkers for cardiovascular risk evaluation.
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- 2018
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20. Resolution of Inflammation Through the Lipoxin and ALX/FPR2 Receptor Pathway Protects Against Abdominal Aortic Aneurysms
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Nikolaos-Taxiarchis Skenteris, Hong Jin, Joy Roy, Teodora Andonova, Kenneth Caidahl, Moritz Lindquist-Liljeqvist, Magnus Bäck, Silke Thul, Marcelo H. Petri, Lars Maegdefessel, Mauro Perretti, and Hildur Arnardottir
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ATL, aspirin-triggered lipoxin ,0301 basic medicine ,Pathology ,medicine.medical_specialty ,lcsh:Diseases of the circulatory (Cardiovascular) system ,Inflammation ,030204 cardiovascular system & hematology ,eicosanoids ,Formyl peptide receptor 2 ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,cardiovascular disease ,Adventitia ,LEADING EDGE IN TRANSLATIONAL RESEARCH ,LX, lipoxin ,medicine ,Receptor ,Protein kinase A ,ALX/FPR2, A lipoxin/formyl peptide receptor 2 ,Ang II, angiotensin II ,Lipoxin ,abdominal aortic aneurysms ,AAA, abdominal aortic aneurysm ,business.industry ,Rv, resolvin ,LO, lipoxygenase ,SPM, specialized pro-resolving mediators ,medicine.disease ,lipoxygenase ,Angiotensin II ,Abdominal aortic aneurysm ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,inflammation ,lcsh:RC666-701 ,cardiovascular system ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Visual Abstract, Highlights • Specialized lipid mediators transduce the resolution of inflammation by means of the ALX/FPR2. • Human AAA exhibited decreased ALX/FPR2 expression. • Genetic disruption of the murine ALX/FPR2 ortholog exacerbated AAA and increased inflammation. • The ALX/FPR2 agonist ATL induced pro-resolving signaling in bone marrow-derived murine cells. • Pro-resolving signaling by means of the ALX/FPR2 receptor may decrease the progression of AAA., Summary An abdominal aortic aneurysm (AAA) is a progressive aortic dilation that may lead to rupture, which is usually lethal. This study identifies the state of failure in the resolution of inflammation by means of decreased expression of the pro-resolving receptor A lipoxin/formyl peptide receptor 2 (ALX/FPR2) in the adventitia of human AAA lesions. Mimicking this condition by genetic deletion of the murine ALX/FPR2 ortholog in hyperlipidemic mice exacerbated the aortic dilation induced by angiotensin II infusion, associated with decreased vascular collagen and increased inflammation. The authors also identified key roles of lipoxin formation through 12/15-lipoxygenase and neutrophil p38 mitogen-activated protein kinase. In conclusion, this study established pro-resolving signaling by means of the ALX/FPR2 receptor in aneurysms and vascular inflammation.
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- 2018
21. Outcome and Associated Findings in Individuals with Pre- and Postnatal Diagnosis of Tetralogy of Fallot (TOF) and Prediction of Early Postnatal Intervention
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Markus Khalil, Marie Gebert, Andrea Kawecki, Aline Wolter, J Herrmann, Jan Degenhardt, Christian Enzensberger, J. Ritgen, Roland Axt-Fliedner, Josef Thul, and Rüdiger Stessig
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Heart Defects, Congenital ,medicine.medical_specialty ,Prenatal diagnosis ,Ultrasonography, Prenatal ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Prenatal Diagnosis ,Ductus arteriosus ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Retrospective Studies ,Tetralogy of Fallot ,Fetus ,030219 obstetrics & reproductive medicine ,medicine.diagnostic_test ,Obstetrics ,business.industry ,Infant, Newborn ,medicine.disease ,Right pulmonary artery ,medicine.anatomical_structure ,Pulmonary Atresia ,Agenesis ,Female ,business ,Pulmonary atresia ,Fetal echocardiography - Abstract
The aim of our retrospective evaluation was to compare the outcome of patients with prenatal and postnatal diagnosis of Tetralogy of Fallot (TOF) and to analyze prenatal echocardiographic parameters predicting intervention within 30 days postnatal. We evaluated 142 patients in our pediatric heart center and prenatal diagnosis center and prenatal practice Praenatal plus in Cologne between 01/08-06/16. Within the prenatal diagnosis group, 6/74 fetuses (8.1 %) had TOF with pulmonary atresia (TOF-PA), and 6 (8.1 %) had absent pulmonary valve syndrome (TOF-APVS). 14 (18.9 %) had an abnormal karyotype including 9/14 (64.3 %) with microdeletion 22q11.2. 25 (33.8 %) had extracardiac malformation. 4 (5.4 %) had agenesis of ductus arteriosus (DA), 22 (29.7 %) had right aortic arch (RAA) and 9 (12.2 %) had major aortopulmonary collateral arteries (MAPCAs). Within the postnatal diagnosis group, no patient had TOF-PA, 4/68 (5.9 %) had TOF-APVS. 12 (17.6 %) had extracardiac malformations, 9 (13.2 %) had an abnormal karyotype including 2/9 with microdeletion 22q11.2. 10 (14.7 %) had RAA, 9 (13.2 %) had MAPCAs. There were no cases with agenesis of DA. Increasing z-score values of the left/right pulmonary artery (LPA/RPA) prenatally were associated with a lower probability for early postnatal intervention (RPA: p = 0.017; LPA: p = 0.013). Within the prenatal diagnosis group, 12 of 41 (29.3 %) live-born patients with follow-up and intention to treat needed early intervention versus 7 (10.3 %) in the postnatal diagnosis group (p = 0.02). Within the postnatal diagnosis group, there were no deaths, while 2 (4.9 %) post-intervention deaths occurred in the prenatal diagnosis group. There are no significant differences concerning post-intervention survival in the prenatal diagnosis group versus the postnatal diagnosis group. Complex cases may be underrepresented in the postnatal diagnosis group. Smaller RPA/LPA values prenatally seem to be associated with early postnatal intervention.ZIEL: Ziel unserer retrospektiven Auswertung war der Outcome-Vergleich von Patienten mit pränatal und postnatal diagnostizierter Fallot-Tetralogie (TOF) sowie die Auswertung fetaler Echokardiografie-Parameter im Hinblick auf Prädiktion einer Intervention innerhalb 30 Tage postnatal. Ausgewertet wurden 142 Patienten, die von 01/08–06/16 in unserem Kinderherz-Zentrum, unserer Pränataldiagnostik oder in der Praxis Praenatal plus in Köln vorstellig waren. In der Pränatal-Diagnose-Gruppe waren 6 von 74 (8,1 %) mit TOF und Pulmonalatresie (TOF-PA), 6 (8,1 %) mit absent-pulmonary-valve-syndrome (TOF-APVS). 14 (18,9 %) hatten einen auffälligen Karyotyp, darunter 9/14 mit Mikrodeletion 22q11.2 (64,3 %). 25 (33,8 %) hatten extrakardiale Fehlbildungen. 4 (5,4 %) hatten eine Ductus arteriosus (DA) -Agenesie, 22 (29,7 %) einen rechten Aortenbogen (RAA), 9 (12,2 %) hatten aortopulmonale Kollateralen (MAPCAs). In der Postnatal-Diagnose-Gruppe waren keine Patienten mit TOF-PA, 4 von 68 (5,9 %) hatten TOF-APVS. 12 (17,6 %) hatten extrakardiale Fehlbildungen, 9 (13,2 %) hatten einen auffälligen Karyotyp, darunter 2/9 mit Mikrodeletion 22q11.2. 10 (14,7 %) hatten ein RAA, 9 (13,2 %) hatten MAPCAs. Es gab keine DA-Agenesien. Pränatal höhere z-Werte der linken/rechten Pulmonalarterie (LPA/RPA) waren mit einer niedrigeren Wahrscheinlichkeit für eine frühe postnatale Intervention assoziiert (RPA: p = 0,017; LPA: p = 0,013). Innerhalb der Pränatal-Diagnose-Gruppe benötigten 12 von 41 (29,3 %) Lebendgeburten mit follow-up und Intention-to-treat eine frühe Intervention versus 7 von 68 (10,3 %) innerhalb der Postnatal-Diagnose-Gruppe (p = 0,02). In der Postnatal-Diagnose-Gruppe gab es keine Todesfälle, in der Pränatal-Diagnose-Gruppe gab es 2/41 (4,9 %) Todesfälle postinterventionell. Es zeigten sich keine Unterschiede hinsichtlich post-interventionellem Überleben in der Pränatal-Diagnose-Gruppe versus Postnatal-Diagnose-Gruppe. Komplexe Fälle könnten in der Postnatal-Diagnose-Gruppe unterrepräsentiert sein. Pränatal kleinere RPA/LPA-Werte scheinen mit einer frühen postnatalen Intervention assoziiert zu sein.
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- 2018
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22. ERV1/ChemR23 Signaling Protects Against Atherosclerosis by Modifying Oxidized Low-Density Lipoprotein Uptake and Phagocytosis in Macrophages
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Marcelo H. Petri, Craig E. Wheelock, Xintong Jiang, Andres Laguna-Fernandez, Miguel Carracedo, Hildur Arnardottir, Silke Thul, Magnus Bäck, Gabrielle Paulsson-Berne, Jesmond Dalli, Göran K. Hansson, Antonio Checa, Teodora Andonova, Gonzalo Artiach, Daniel F. J. Ketelhuth, Roland Baumgartner, Anton Gisterå, Maria J. Forteza, and Mary Walker
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Male ,0301 basic medicine ,Apolipoprotein E ,Mice, Knockout, ApoE ,Receptors, G-Protein-Coupled ,Original Research Articles ,Medicine ,Oxidoreductases Acting on Sulfur Group Donors ,Receptor ,lipoproteins, LDL ,Aorta ,education.field_of_study ,Eicosapentaenoic acid ,Plaque, Atherosclerotic ,3. Good health ,Phenotype ,Eicosapentaenoic Acid ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,Receptors, Chemokine ,Signal transduction ,Cardiology and Cardiovascular Medicine ,Signal Transduction ,medicine.medical_specialty ,Statin ,medicine.drug_class ,Phagocytosis ,Population ,Aortic Diseases ,Necrosis ,03 medical and health sciences ,Physiology (medical) ,Internal medicine ,Animals ,Humans ,Genetic Predisposition to Disease ,education ,Cytochrome Reductases ,business.industry ,Macrophages ,Lipid signaling ,Atherosclerosis ,Mice, Inbred C57BL ,Disease Models, Animal ,030104 developmental biology ,Endocrinology ,Receptors, LDL ,Diet, Western ,business - Abstract
Supplemental Digital Content is available in the text., Background: In addition to enhanced proinflammatory signaling, impaired resolution of vascular inflammation plays a key role in atherosclerosis. Proresolving lipid mediators formed through the 12/15 lipoxygenase pathways exert protective effects against murine atherosclerosis. n-3 Polyunsaturated fatty acids, including eicosapentaenoic acid (EPA), serve as the substrate for the formation of lipid mediators, which transduce potent anti-inflammatory and proresolving actions through their cognate G-protein–coupled receptors. The aim of this study was to identify signaling pathways associated with EPA supplementation and lipid mediator formation that mediate atherosclerotic disease progression. Methods: Lipidomic plasma analysis were performed after EPA supplementation in Apoe−/− mice. Erv1/Chemr23−/−xApoe−/− mice were generated for the evaluation of atherosclerosis, phagocytosis, and oxidized low-density lipoprotein uptake. Histological and mRNA analyses were done on human atherosclerotic lesions. Results: Here, we show that EPA supplementation significantly attenuated atherosclerotic lesion growth induced by Western diet in Apoe−/− mice and was associated with local cardiovascular n-3 enrichment and altered lipoprotein metabolism. Our systematic plasma lipidomic analysis identified the resolvin E1 precursor 18-monohydroxy EPA as a central molecule formed during EPA supplementation. Targeted deletion of the resolvin E1 receptor Erv1/Chemr23 in 2 independent hyperlipidemic murine models was associated with proatherogenic signaling in macrophages, increased oxidized low-density lipoprotein uptake, reduced phagocytosis, and increased atherosclerotic plaque size and necrotic core formation. We also demonstrate that in macrophages the resolvin E1–mediated effects in oxidized low-density lipoprotein uptake and phagocytosis were dependent on Erv1/Chemr23. When analyzing human atherosclerotic specimens, we identified ERV1/ChemR23 expression in a population of macrophages located in the proximity of the necrotic core and demonstrated augmented ERV1/ChemR23 mRNA levels in plaques derived from statin users. Conclusions: This study identifies 18-monohydroxy EPA as a major plasma marker after EPA supplementation and demonstrates that the ERV1/ChemR23 receptor for its downstream mediator resolvin E1 transduces protective effects in atherosclerosis. ERV1/ChemR23 signaling may represent a previously unrecognized therapeutic pathway to reduce atherosclerotic cardiovascular disease.
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- 2018
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23. Reverse Potts-Shunt for Bridging to Transplant, Recovery or Long-term Palliation
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Josef Thul, Dietmar Schranz, Matthias J. Müller, Hakan Akintürk, Christian Jux, B. Sen-Hild, and U. Yörüker
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Potts shunt ,Bridging (networking) ,business.industry ,Medicine ,Surgery ,Cardiology and Cardiovascular Medicine ,business ,Term (time) - Published
- 2018
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24. The Neonatal Microbiome
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Taylor A. Thul, Jeannie Rodriguez, Sheila Jordan, and Abby Mutic
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medicine.medical_specialty ,Neonatal intensive care unit ,Pharmacology (nursing) ,Critical Care Nursing ,Health outcomes ,Article ,Sepsis ,03 medical and health sciences ,Nursing care ,0302 clinical medicine ,Enterocolitis, Necrotizing ,Intensive Care Units, Neonatal ,030225 pediatrics ,Maternity and Midwifery ,medicine ,Humans ,Vulnerable population ,030212 general & internal medicine ,Microbiome ,Intensive care medicine ,Enterocolitis ,business.industry ,Probiotics ,Infant, Newborn ,medicine.disease ,Respiration, Artificial ,Anti-Bacterial Agents ,Gastrointestinal Microbiome ,Necrotizing enterocolitis ,medicine.symptom ,business ,Infant, Premature - Abstract
Nursing care of the neonate in the neonatal intensive care unit (NICU) is complex, due in large part to various physiological challenges. A newer and less well-known physiological consideration is the neonatal microbiome, the community of microorganisms, both helpful and harmful, that inhabit the human body. The neonatal microbiome is influenced by the maternal microbiome, mode of infant birth, and various aspects of NICU care such as feeding choice and use of antibiotics. The composition and diversity of the microbiome is thought to influence key health outcomes including development of necrotizing enterocolitis, late-onset sepsis, altered physical growth, and poor neurodevelopment. Nurses in the NICU play a key role in managing care that can positively influence the microbiome to promote more optimal health outcomes in this vulnerable population of newborns.
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- 2017
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25. Low salivary resolvin D1 to leukotriene B4 ratio predicts carotid intima media thickness: A novel biomarker of non-resolving vascular inflammation
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Mohamed Temmar, Carlos Labat, Magnus Bäck, Athanase Benetos, and Silke Thul
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0301 basic medicine ,medicine.medical_specialty ,Saliva ,Epidemiology ,Leukotriene B4 ,Inflammation ,030204 cardiovascular system & hematology ,Proinflammatory cytokine ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Internal medicine ,medicine ,business.industry ,Lipid signaling ,respiratory system ,030104 developmental biology ,Endocrinology ,Intima-media thickness ,chemistry ,Docosahexaenoic acid ,Biomarker (medicine) ,lipids (amino acids, peptides, and proteins) ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background Different lipid mediators may have opposing effects on vascular inflammation. For example, whereas leukotriene B4 (LTB4) transduces inflammation, resolvin D1 (RvD1), which is synthesized from the omega-3 fatty acid docosahexaenoic acid, facilitates the resolution of inflammation. The aim of this study was to determine the association of the RvD1/LTB4 ratio with subclinical atherosclerosis. Methods Saliva samples and ultrasound measurements of the intima media thickness of the carotid artery was obtained for 254 participants. The lipid mediators RvD1 and LTB4 were measured by enzyme-linked immunosorbent assay. Results Participants with a salivary RvD1/LTB4 ratio >1 had a significantly lower intima media thickness than those in whom LTB4 prevailed. The salivary RvD1/LTB4 ratio independently predicted carotid intima media thickness. Conclusions The ratio between the proresolving and proinflammatory salivary lipid mediators RvD1 and LTB4 may serve as a biomarker of non-resolving inflammation and its relation to intima media thickness in cardiovascular disease.
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- 2017
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26. Mid-Term Results of Fontan Completion after Hybrid Norwood Stage I and Comprehensive Stage II Operation for Hypoplastic Left Heart Syndrome
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Dietmar Schranz, Matthias J. Müller, Josef Thul, Hakan Akintürk, Klaus Valeske, H. Elmontaser, and U. Yörüker
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,business.industry ,medicine ,Mid term results ,Surgery ,Stage ii ,Cardiology and Cardiovascular Medicine ,medicine.disease ,business ,Hypoplastic left heart syndrome - Published
- 2017
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27. Impaired Cardiac Dimensions and Function in Children and Adolescents after Heart Transplantation Assessed by Cardiac Magnetic Resonance
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K. Behnke-Hall, P. Hachmann, D. Schranz, Hakan Akintuerk, Juergen Bauer, N. Mazhari, Josef Thul, Christian Apitz, Samir Sarikouch, Inga Voges, Heiner Latus, and Brigitte Peters
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Pulmonary and Respiratory Medicine ,Heart transplantation ,medicine.medical_specialty ,business.industry ,Internal medicine ,medicine.medical_treatment ,Cardiology ,medicine ,Surgery ,Cardiology and Cardiovascular Medicine ,Cardiac magnetic resonance ,business - Published
- 2017
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28. 20-kHz-rate three-dimensional tomographic imaging of the concentration field in a turbulent jet
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Terrence R. Meyer, Sukesh Roy, James R. Gord, Mikhail N. Slipchenko, Daniel Thul, and Benjamin R. Halls
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Jet (fluid) ,Tomographic reconstruction ,Materials science ,Turbulence ,business.industry ,Mechanical Engineering ,General Chemical Engineering ,Laser ,Diffuser (thermodynamics) ,law.invention ,Optics ,law ,Tomography ,Physical and Theoretical Chemistry ,Laser-induced fluorescence ,business ,Simulation ,Beam (structure) - Abstract
Three-dimensional imaging of the tracer concentration field is demonstrated at a rate of 20 kHz in a turbulent gaseous free jet. The acetone tracer species that is seeded into the jet is excited by the fourth-harmonic output of a Nd:YAG burst-mode laser. The laser beam is expanded and re-collimated to a 35-mm-diameter beam and passed through a diffuser to reduce spatial variations within the beam profile. Seven high-speed cameras coupled to high-speed intensifiers with vertical stereoscopes collect fourteen simultaneous views of the fluorescence emission. The images are processed and a linear relationship between signal intensity and acetone concentration was verified. Eight of the fourteen processed views are then reconstructed into volumes using a simultaneous multiplicative algebraic-reconstruction technique, limited by the software. The mixing behavior is characterized and compared with turbulent-jet scaling laws and data from the literature at similar conditions. The accuracy, precision, and limitations of the technique are discussed, and potential strategies for implementation in reacting flows are considered.
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- 2017
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29. Influence of load intensity on blood pressure after a resistance training session
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Michel Gonçalves Bezerra, Victor Gonçalves Corrêa Neto, Luiz Gustavo Dias dos Santos, Samuel Thul Pereira Barguti, Claudio Melibeu Bentes, Alexandre Damasceno Simões, Humberto Miranda, Tiago Figueiredo, and Roberto Simão
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medicine.medical_specialty ,business.industry ,Repetition maximum ,Resistance training ,Physical Therapy, Sports Therapy and Rehabilitation ,030229 sport sciences ,030204 cardiovascular system & hematology ,Intensity (physics) ,03 medical and health sciences ,0302 clinical medicine ,Blood pressure ,Physical therapy ,medicine ,Orthopedics and Sports Medicine ,Session (computer science) ,business - Abstract
This study aimed to compare the blood pressure responses in normotensive-trained men following resistance training (RT) experimental sessions with loads of 60% and 80% of a one-repetition maximum. Ten participants underwent three experimental condition: (P60) – session adjusted with 60%, (P80) – session adjusted with 80% of 1 repetition maximum (1RM) and, (CONT) – only blood pressure assessments in rest condition for 60 min (intervals of 10 min). The resistance training design was adjusted with 3-sets, 3-min rest interval length between sets and exercises. Blood pressure was measured before, and at 10, 20, 30, 40, 50, and 60 min after the training session. The results showed that both protocols induce post-exercise hypotension ( p p
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- 2017
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30. Pediatric cardiac waitlist mortality-Still too high
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Richard Kirk, Zdenka Reinhardt, Claire Irving, Mariska Kemna, Susan W. Denfield, Oliver Miera, Bibhuti B Das, Anne I. Dipchand, Ryan R. Davies, Estela Azeka, Luis García-Guereta, and Josef Thul
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Heart Failure ,Transplantation ,medicine.medical_specialty ,Adolescent ,Waiting Lists ,business.industry ,Infant, Newborn ,Infant ,Disease ,Global Health ,Donor Selection ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,medicine ,Heart Transplantation ,Humans ,Waitlist mortality ,Intensive care medicine ,business ,Child - Abstract
Cardiac transplantation for children with end-stage cardiac disease with no other medical or surgical options is now standard. The number of children in need of cardiac transplant continues to exceed the number of donors considered "acceptable." Therefore, there is an urgent need to understand which recipients are in greatest need of transplant before becoming "too ill" and which "marginal" donors are acceptable in order to reduce waitlist mortality. This article reviewed primarily pediatric studies reported over the last 15 years on waitlist mortality around the world for the various subgroups of children awaiting heart transplant and discusses strategies to try to reduce the cardiac waitlist mortality.
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- 2019
31. Anesthesia for Pediatric Heart Transplantation: Are Patients With a Failing Hemi-Fontan- or Fontan-Physiology Different?
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Ann-Catrin Paul, Christian Koerner, Hakan Akintuerk, Klaus Valeske, Dietmar Schranz, Noona Mazhari, Valesco Mann, Josef Thul, Matthias Mueller, and Juergen Bauer
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Inotrope ,Adult ,Heart Defects, Congenital ,Heart disease ,Adolescent ,Operative Time ,Cardiomyopathy ,030204 cardiovascular system & hematology ,Fontan Procedure ,Group B ,law.invention ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,law ,Cardiopulmonary bypass ,Weaning ,Medicine ,Humans ,Anesthesia ,Treatment Failure ,Child ,Retrospective Studies ,Cardiopulmonary Bypass ,business.industry ,Infant ,medicine.disease ,Transplantation ,Anesthesiology and Pain Medicine ,030228 respiratory system ,Child, Preschool ,Heart Transplantation ,Fresh frozen plasma ,Cardiology and Cardiovascular Medicine ,business ,Cardiomyopathies - Abstract
Background. The absolute number of patients presenting with failure of the hemi-Fontan or Fontan circulation for cardiac transplantation (cTx) will continuously rise. We aimed to analyze the intraoperative differences in patients undergoing cTx for a failing hemi-Fontan or Fontan circulation (group A) with those undergoing cTx for cardiomyopathy and congenital heart disease (group B). Methods. Data of patients undergoing cTx during a 10-year period were compared between group A and group B patients. Results. cTx was performed in 83 patients (group A, n = 21; group B, n = 62). Surgical times including median incision-suture time (549 minutes vs 386 minutes, P < .05) and median organ ischemia time (305 minutes vs 233 minutes, P < .05) were longer in group A patients. After weaning off cardiopulmonary bypass a higher median modified Vasoactive Inotropic Score (16 vs 10, P < .05) was necessary in group A patients. During surgery more fresh frozen plasma (44 mL/kg vs 20 mL/kg, P < .05), platelet concentrates (20 mL/kg vs 14 mL/kg, P < .05), and coagulation factor concentrates were given in group A patients. Mortality during the first 90 days after cTx was higher in group A (23.8% vs 6.5%, P < .05). Conclusion. Patients undergoing cTx for a failing hemi-Fontan or Fontan circulation are challenging. They require an intensive vasoactive and inotropic support; furthermore, special attention should be paid to the management of bleeding complications. cTx for this group of patients is associated with higher 90 days mortality.
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- 2019
32. Anesthesia for bilateral pulmonary banding as part of hybrid stage I approach palliating neonates with hypoplastic left heart syndrome
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Thomas Zajonz, Valesco Mann, Josef Thul, Pavol Cupka, Klaus Valeske, Dietmar Schranz, Thilo Menges, Christian Koerner, Hakan Akintuerk, and Matthias Mueller
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Inotrope ,medicine.medical_treatment ,Pulmonary Artery ,Fontan Procedure ,Group B ,Pulmonary artery banding ,Hypoplastic left heart syndrome ,law.invention ,law ,Hypoplastic Left Heart Syndrome ,medicine ,Humans ,Anesthesia ,Retrospective Studies ,Mechanical ventilation ,business.industry ,Palliative Care ,Infant, Newborn ,Perioperative ,medicine.disease ,Intensive care unit ,Anesthesiology and Pain Medicine ,Treatment Outcome ,Shock (circulatory) ,Pediatrics, Perinatology and Child Health ,medicine.symptom ,business - Abstract
BACKGROUND Neonatal management of patients with hypoplastic left heart syndrome and complex remains a challenging task, whereby the "hybrid" palliation is often reserved for high-risk patients as a "rescue" procedure. AIM This study documents the anesthetic challenges and potential complications associated with the Giessen hybrid stage I approach. METHODS The Giessen hybrid stage I approach is focused on surgical bilateral pulmonary artery banding. Retrospective perioperative data were analyzed. Contrary to a stable group A, inotropic treatment before surgery for treatment of postnatal shock classified patients as unstable (Group B). Clinical outcomes considered were inhospital mortality, duration of postoperative mechanical ventilation, postoperative time at the intensive care unit, perioperative vasoactive medication requirements, and red blood cell transfusion. RESULTS From June 1998 to December 2015, 185 patients were allocated to Group A (n = 165) and Group B (n = 20). The inhospital mortality was 2.2% with no difference between the groups. There was also no difference in the postoperative time on mechanical ventilation and the time in the intensive care unit. Vasoactive medication was more often required in Group B (100%) compared to Group A (19%). In Group B, more red blood cells were transfused 6.0 ± 8.3 vs 2.0 ± 5.8 mL/kg in Group A (P
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- 2019
33. Reduced Biventricular Volumes and Myocardial Dysfunction Long-term After Pediatric Heart Transplantation Assessed by CMR
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Bettina Reich, Nona Mazhari, Simon Mueller, Brigitte Peters, Christian Jux, Pauline Hachmann, Christian Apitz, K. Gummel, Dietmar Schranz, Hakan Akintuerk, Samir Sarikouch, Kachina Behnke-Hall, Inga Voges, Heiner Latus, J. Thul, and Juergen Bauer
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Male ,medicine.medical_specialty ,Time Factors ,Adolescent ,Cardiac Volume ,medicine.medical_treatment ,Heart Ventricles ,Diastole ,Magnetic Resonance Imaging, Cine ,Muscle hypertrophy ,Young Adult ,Internal medicine ,Heart rate ,Ventricular Dysfunction ,Medicine ,Humans ,Ventricular Function ,Child ,Retrospective Studies ,Heart transplantation ,Transplantation ,medicine.diagnostic_test ,Ventricular Remodeling ,business.industry ,Myocardial feature ,Infant ,Magnetic resonance imaging ,Prognosis ,Child, Preschool ,Cardiology ,Heart Transplantation ,Female ,Pediatric heart transplantation ,business ,Follow-Up Studies - Abstract
BACKGROUND Long-term cardiac remodeling after heart transplantation (HT) in children has been insufficiently characterized. The aim of our study was to evaluate ventricular size in HT patients using cardiovascular magnetic resonance (CMR) imaging, to find underlying factors related to potentially abnormal cardiac dimensions and to study its impact on functional class and ventricular function. METHODS Seventy-five pediatric HT recipients (age 14.0 ± 4.2 y) were assessed by using CMR 11.2 ± 5.4 years after HT. Right ventricular (RV) and left ventricular (LV) volumes and mass were derived from short-axis cine images and myocardial strain/strain rate was assessed using myocardial feature tracking technique. Results were compared with a healthy reference population (n = 79, age 13.7 ± 3.7 y). RESULTS LV end-diastolic ventricular volumes were smaller (64 ± 12 versus 84 ± 12 mL/m; P < 0.001) while mass-to-volume ratio (0.86 ± 0.18 versus 0.65 ± 0.11; P < 0.001) and heart rate (92 ± 14 versus 78 ± 13 beats/min; P < 0.001) were higher in HT patients. LV-ejection fraction (EF) was preserved (66% ± 8% versus 64% ± 6%; P = 0.18) but RV-EF (58 ± 7 versus 62% ± 4%, P = 0.004), LV systolic longitudinal strain (-12 ± 6 versus -15% ± 5%; P = 0.05), diastolic strain rate (1.2 ± 0.6 versus 1.5 ± 0.6 1/s; P = 0.03), and intra and interventricular synchrony were lower in the HT group. Smaller LV dimensions were primarily related to longer follow-up time since HT (β = -0.38; P < 0.001) and were associated with worse functional class and impaired ventricular systolic and diastolic performance. CONCLUSIONS Cardiac remodeling after pediatric HT is characterized by reduced biventricular size and increased mass-to-volume ratio. These adverse changes evolve gradually and are associated with impaired functional class and ventricular dysfunction suggesting chronic maladaptive processes affecting allograft health.
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- 2019
34. Efficient Power Electronic Inverter Control Developed in an Automotive Hardware-in-the-Loop Setup
- Author
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Jakob Andert, Lukas Müller, Kay Hameyer, René Scheer, Michael Schröder, Christian Granrath, Konstantin Etzold, Andreas Thul, Claas Kürten, and Max-Arno Meyer
- Subjects
Computer science ,business.industry ,Control (management) ,Automotive industry ,Hardware-in-the-loop simulation ,Inverter ,business ,Automotive engineering ,Power (physics) - Published
- 2019
- Full Text
- View/download PDF
35. Ideal intensive care unit course following comprehensive stage II in hypoplastic left heart syndrome
- Author
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B. Steinbrenner, Dietmar Schranz, Sabine Recla, Hakan Akintuerk, and Josef Thul
- Subjects
medicine.medical_specialty ,business.industry ,Intensivist ,Case Report ,030204 cardiovascular system & hematology ,Stage ii ,medicine.disease ,Intensive care unit ,Atrial septum ,Transcatheter approach ,Hypoplastic left heart syndrome ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,law ,Intensive care ,Pediatrics, Perinatology and Child Health ,medicine ,Oxygen delivery ,030212 general & internal medicine ,Intensive care medicine ,business - Abstract
Comprehensive stage II is the advanced surgical part of the staged treatment of a newborn with hypoplastic left heart syndrome (HLHS) palliated initially by a Giessen-Hybrid approach. We report an almost ideal course following comprehensive stage II operation with focus on postoperative intensive care strategy. Following a short introduction of the postnatally performed Giessen-Hybrid approach, in which the surgical part is focused on bilateral pulmonary banding and duct stenting as well as manipulation of the atrial septum is postponed to transcatheter approach, it should be emphasized, that the quality of inter-stage I is eminently important for the success of the following comprehensive stage II. Furthermore, the interplay of the responsible surgeon, anesthesiologist, cardiologist and intensivist is mandatory for working as a team with a similar pathophysiological background. Presupposed a sophisticated surgical and anesthesiologic management, the immediate post-operative intensive care is crucial for the patient's final outcome, not only in terms of mortality but even morbidity (long-term neurological condition). Detailed treatment strategies are presented by pathophysiological reasonable hypotheses and the current pharmacological knowledge. Aiming to improve systemic and regional oxygen delivery and lowering oxygen consumption, as a sine qua none for a favorable patient's outcome.
- Published
- 2019
36. Initial high-intensity laser propagation experiments at the mobile ultrafast high-energy laser facility (MU-HELF)
- Author
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Nathan Bodnar, Robert Bernath, Haley Kerrigan, Jessica Peña, Patrick Roumayah, Daniel Thul, Shermineh Rostami Fairchild, Martin Richardson, and Danielle Reyes
- Subjects
Materials science ,business.industry ,law ,High intensity ,High energy laser ,Optoelectronics ,business ,Laser ,Ultrashort pulse ,law.invention - Published
- 2019
- Full Text
- View/download PDF
37. HPA Cell Atlas Standard Immunostaining Protocol v1
- Author
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Peter Thul and Ulrika Axelsson
- Subjects
Pathology ,medicine.medical_specialty ,medicine.anatomical_structure ,Atlas (anatomy) ,business.industry ,Cell ,medicine ,business ,Immunostaining - Abstract
The Cell Atlas, part of the Human Protein Atlas project, systematically investigate the spatiotemporal subcellular distribution of human proteins. This is our standard protocol for indirect immunostaining of cells cultured in 96-well glass bottom plates.
- Published
- 2019
- Full Text
- View/download PDF
38. Combined Surgical and Medical Approach in Left Ventricular Dilated Cardiomyopathy for Restoring Synchrony and Ventricular–Ventricular Interaction
- Author
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C. Jux, K. Gummel, B. Reich, Matthias Mueller, J. Thul, L. Rueblinger, T. Logeswaran, Sabine Recla, Dietmar Schranz, Dorle Schmidt, B. Steinbrenner, H. Akintürk, and S. Skrzypek
- Subjects
Ventricular interaction ,medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,Dilated cardiomyopathy ,medicine.disease ,business - Published
- 2019
- Full Text
- View/download PDF
39. Survival, Neurocognitive Outcome, and Quality of Life after Cardiac Extracorporeal membrane oxygenation in Children—A Single-Center Study
- Author
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B. Steinbrenner, C. Jux, T. Logeswaran, H. Akintürk, Sabine Recla, J. Thul, and A. Hahn
- Subjects
medicine.medical_specialty ,Quality of life (healthcare) ,business.industry ,medicine.medical_treatment ,medicine ,Extracorporeal membrane oxygenation ,Intensive care medicine ,business ,Single Center ,Outcome (game theory) ,Neurocognitive - Published
- 2019
- Full Text
- View/download PDF
40. 1 kilometer atmospheric propagation studies of a 5 TW ultrashort pulse laser
- Author
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Jessica Peña, Shermineh Rostami Fairchild, Haley Kerrigan, Patrick Roumayah, Martin Richardson, Danielle Reyes, Robert Bernath, Daniel Thul, and Nathan Bodnar
- Subjects
Optics ,Atmospheric propagation ,law ,business.industry ,Kilometer ,Diagnostic equipment ,Environmental science ,Laser ,business ,Ultrashort pulse ,law.invention ,Ultrashort pulse laser - Abstract
Field testing of the Mobile Ultrafast High-Energy Laser Facility is presented. This facility is located on a 1 km test range on Merritt Island and is equipped with a full suite of atmospheric diagnostic equipment.
- Published
- 2019
- Full Text
- View/download PDF
41. Neurological and Cognitive Development of School-Aged and Young Patients Who Received Aortic Arch Surgery Using Antegrade Selective Cerebral Perfusion in Neonatal and Infancy Period
- Author
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Andreas Hahn, Valesco Mann, Matthias J. Müller, Hakan Akintürk, Josef Thul, Christian Jux, K. Krieg, and F. Rommel
- Subjects
School age child ,business.industry ,Anesthesia ,Cognitive development ,Infancy - period ,Medicine ,Cerebral perfusion pressure ,Aortic arch surgery ,business - Published
- 2019
- Full Text
- View/download PDF
42. Improvement of Survival in Low Weight Children on Berlin Heart EXCOR Ventricular Assist Device Support
- Author
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S. Morales, M. Thul, Antonio Amodeo, T. Humpl, K. Menon, and O. Miera
- Subjects
medicine.medical_specialty ,business.industry ,Ventricular assist device ,medicine.medical_treatment ,Internal medicine ,medicine ,Cardiology ,business - Published
- 2019
- Full Text
- View/download PDF
43. Use of Extracorporeal membrane oxygenation for Prevention of Right Heart Failure in High-Risk Patients with Suprasystemic Pulmonary Arterial Hypertension after Cardiac Surgery
- Author
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C. Jux, S. T. Zajonz, H. Akintürk, C. Neuhäuser, J. Thul, and Dietmar Schranz
- Subjects
medicine.medical_specialty ,Right heart failure ,High risk patients ,business.industry ,medicine.medical_treatment ,Internal medicine ,Extracorporeal membrane oxygenation ,medicine ,Cardiology ,business ,Cardiac surgery - Published
- 2019
- Full Text
- View/download PDF
44. Cognitive Outcome and Health-Related Quality of Life in School-Aged Children and Young Adults after Heart Transplantation in Early Childhood
- Author
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H. Akintürk, N. Mazhari, J. Thul, A. Hahn, S. Skrypek, T. Logeswaran, L. Rüblinger, and C. Jux
- Subjects
Health related quality of life ,Gerontology ,Heart transplantation ,School age child ,business.industry ,medicine.medical_treatment ,Medicine ,Cognition ,Early childhood ,Young adult ,business ,Outcome (game theory) - Published
- 2019
- Full Text
- View/download PDF
45. Aortic Valve Repair for Pediatric and Grown-Up Congenital Heart Disease Patients: 16 Years Single-Center Experience with 106 Cases
- Author
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Josef Thul, U. Yörüker, Dorle Schmidt, Matthias J. Müller, Klaus Valeske, Christian Jux, Dietmar Schranz, and Hakan Akintürk
- Subjects
medicine.medical_specialty ,Aortic valve repair ,Heart disease ,business.industry ,medicine ,Single Center ,medicine.disease ,business ,Surgery - Published
- 2019
- Full Text
- View/download PDF
46. ABO-Incompatible Heart Transplantation—Experience of a Single Center
- Author
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A. Sprengel, C. Jux, J. Thul, H. Akintürk, S. Skrzypek, N. Mazhari, Klaus Valeske, J. Pantke, and M. Mueller
- Subjects
Heart transplantation ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,ABO blood group system ,medicine ,Single Center ,business ,Surgery - Published
- 2019
- Full Text
- View/download PDF
47. Effective Atrial Synchronized Single-Site Left Ventricular Pacing Prevents Heart Transplantation in Congenital Left Bundle Branch Block and Dilated Cardiomyopathy in Infants
- Author
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B. Gonzalez y Gonzalez, Josef Thul, Christian Jux, N. Mazhari, Thushiha Logeswaran, Markus Khalil, and Stefan Rupp
- Subjects
Heart transplantation ,medicine.medical_specialty ,Left bundle branch block ,Single site ,business.industry ,Internal medicine ,medicine.medical_treatment ,medicine ,Cardiology ,Dilated cardiomyopathy ,Ventricular pacing ,medicine.disease ,business - Published
- 2019
- Full Text
- View/download PDF
48. Outcomes of Biventricular Surgical Treatment for Interrupted Aortic Arch with/without Associated Complex Cardiac Anomalies: A Single-Center Experience in 16 Years
- Author
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B. Sen-Hild, A. Sprengel, Christian Jux, Hakan Akintürk, Matthias J. Müller, Josef Thul, Dietmar Schranz, and U. Yörüker
- Subjects
medicine.medical_specialty ,business.industry ,Interrupted aortic arch ,Complex cardiac anomalies ,medicine ,Single Center ,medicine.disease ,business ,Surgical treatment ,Surgery - Published
- 2019
- Full Text
- View/download PDF
49. Pulmonary Artery Banding in Patients with Left Ventricular Dilated Cardiomyopathy: Goal-Directed Postoperative Therapy for Safe Patient Guidance
- Author
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B. Steinbrenner, Matthias Mueller, Thushiha Logeswaran, S. Skrzypek, Hakan Akintuerk, Dorle Schmidt, Sabine Recla, D. Schranz, Christian Jux, B. Reich, Josef Thul, L. Rueblinger, and K. Gummel
- Subjects
medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,Dilated cardiomyopathy ,In patient ,medicine.disease ,business ,Pulmonary artery banding - Published
- 2019
- Full Text
- View/download PDF
50. The mobile ultrafast high energy laser facility - A new facility for high-intensity atmospheric laser propagation studies
- Author
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Lawrence Shah, D. Maukonen, Daniel Thul, Matthieu Baudelet, Jessica Peña, Robert Bernath, Nathan Bodnar, Martin Richardson, Danielle Reyes, Joshua B. Bradford, S. Rostami Fairchild, Haley Kerrigan, and Patrick Roumayah
- Subjects
Range (particle radiation) ,business.industry ,Mechanical Engineering ,Laser source ,High intensity ,Physics::Optics ,High energy laser ,02 engineering and technology ,Laser science ,021001 nanoscience & nanotechnology ,Laser ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,Optics ,law ,0103 physical sciences ,Environmental science ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Ultrashort pulse ,Beam (structure) - Abstract
We present the design, performance, and initial activation of the Mobile Ultrafast High Energy Laser Facility, a 5 TW near-infrared laser source located on a multi-km test range at Kennedy Space Center. The system is compact, readily transportable, and provides a robust, tunable output suitable for long range studies of high intensity laser propagation. The supporting testing infrastructure, which includes stand-alone beam diagnostic stations and atmospheric monitoring capabilities, makes this facility ideal for the development of stand-off high energy ultrafast applications and fundamental studies of atmospheric laser science.
- Published
- 2021
- Full Text
- View/download PDF
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