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Effects of combined aerobic,resistance and inspiratory training in patients with pulmonary hypertension:A systematic review

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World Journal of Critical Care Medicine 2024年第2期13卷 168-179页

作者： Christos Kourek Antonia Zachariou Eleftherios Karatzanos Michalis Antonopoulos Theodora Soulele andreas karabinis Serafim Nanas Stavros Dimopoulos Department of Clinical Ergospirometry Exercise and Rehabilitation Laboratory1^(st)Department of Critical Care MedicineEvangelismos HospitalNational and Kapodistrian University of AthensAthens 10676Greece Department of Cardiology 417 Army Share Fund Hospital of AthensAthens 11521Greece Cardiac Surgery ICU Onassis Cardiac Surgery centerAthens 17674AtticaGreece Cardiac Surgery ICU Onassis Cardiac Surgery CenterAthens 17674Greece Cardiac Surgery Intensive Care Unit Onassis Cardiac Surgery CenterAthens 17674Greece Department of Clinical Ergospirometry Exercise and Rehabilitation LaboratoryNational and Kapodistrian University of AthensAthens 10676Greece

BACKGROUND Pulmonary hypertension(PH)is a serious progressive disorder of the modern world,characterized by endothelial dysfunction and impaired *** with PH usually present exercise intolerance from the very early stages and reduced exercise *** training has been shown to have beneficial effects in patients with cardiovascular ***,data regarding the effects of combined exercise training programs in patients with PH still remains *** To investigate the effects of combined exercise training programs on exercise capacity and quality of life in patients with *** Our search included all available randomized controlled trials(RCTs)regarding combined aerobic,resistance and inspiratory training programs in patients with PH in 4 databases(Pubmed,PEDro,Embase,CINAHL)from 2012 to *** RCTs were included in the final *** capacity,assessed by peak VO_(2)or 6-min walking test(6MWT),as well as quality of life,assessed by the SF-36 questionnaire,were set as the primary outcomes in our *** Peak VO_(2)was measured in 4 out of the 5 RCTs while 6MWT was measured in all *** indices of functional capacity were significantly increased in patients with PH who underwent combined exercise training compared to the controls in all of the included RCTs(P<0.05).Quality of life was measured in 4 out of 5 *** patients improved their quality of life in each group,however,only 2 RCTs demonstrated further improvement in patients performing combined training compared to *** By this systematic review,we have demonstrated that combined aerobic,resistance and inspiratory exercise training is safe and has beneficial effects on aerobic capacity and quality of life in patients with *** exercise training regimen may be part of the therapeutic strategy of the syndrome.

关键词： Pulmonary hypertension Exercise training Peak VO2 Functional capacity Quality of life

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Incidence and peri-operative risk factors for development of acute kidney injury in patients after cardiac surgery:A prospective observational study

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World Journal of Clinical Cases 2023年第16期11卷 3791-3801页

作者： Stavros Dimopoulos Georgios Zagkotsis Charalambia Kinti Niki Rouvali Magda Georgopoulou Mariantzela Mavraki Androniki Tasouli Efterpi Lyberopoulou Antonios Roussakis Ioannis Vasileiadis Serafim Nanas andreas karabinis Department of Cardiac Surgery Intensive Care Unit Onassis Cardiac Surgery CenterAthens 17674Greece Department of Clinical Ergospirometry Exercise and Rehabilitation LaboratoryNational and Kapodistrian University of AthensAthens 10676Greece

BACKGROUND Patients admitted to intensive care unit(ICU) after cardiac surgery develop acute kidney injury(AKI) immediately post-operation. We hypothesized that AKI occurs mainly due to perioperative risk factors and may affect *** To assess peri-operative risk factors for AKI post cardiac surgery and its relationship with clinical *** This was an observational single center, tertiary care setting study, which enrolled 206 consecutive patients, admitted to ICU after cardiac surgery. Patients were followed-up until ICU discharge or death, in order to determine the incidence of AKI, perioperative risk factors for AKI and its association with *** and multivariate logistic regression analysis was performed to assess predictor variables for AKI *** After ICU admission, 55 patients(26.7%) developed AKI within 48 h. From the logistic regression analysis performed, high EuroScore Ⅱ(OR: 1.18;95%CI: 1.06-1.31, P = 0.003), white blood cells(WBC) pre-operatively(OR: 1.0;95%CI: 1.0-1.0, P = 0.002) and history of chronic kidney disease(OR: 2.82;95%CI: 1.195-6.65, P = 0.018) emerged as independent predictors of AKI among univariate predictors. AKI that developed AKI had longer duration of mechanical ventilation [1113(777–2195) vs 714(511–1020) min, P = 0.0001] and ICU length of stay [70(28–129) vs 26(21–51) h, P = 0.0001], higher rate of ICU-acquired weakness(16.4% vs 5.3%, P =0.015), reintubation(10.9% vs 1.3%, P = 0.005), dialysis(7% vs 0%, P = 0.005), delirium(36.4% vs 23.8%, P = 0.001) and mortality(3.6% vs 0.7%, P = 0.046).CONCLUSION Patients present frequently with AKI after cardiac surgery. EuroScore Ⅱ, WBC count and chronic kidney disease are independent predictors of AKI development. The occurrence of AKI is associated with poor outcome.

关键词： Acute kidney injury Renal failure Cardiac surgery Predisposing factors Prognosis Outcome

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Exercise training in heart transplantation

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World Journal of Transplantation 2021年第11期11卷 466-479页

作者： Christos Kourek Eleftherios Karatzanos Serafim Nanas andreas karabinis Stavros Dimopoulos Clinical Ergospirometry Exercise&Rehabilitation LaboratoryEvaggelismos HospitalAthens 10676AtticaGreece Cardiac Surgery Intensive Care Unit Onassis Cardiac Surgery CenterAthens 17674Greece

Heart transplantation remains the gold standard in the treatment of end-stage heart failure(HF).Heart transplantation patients present lower exercise capacity due to cardiovascular and musculoskeletal alterations leading thus to poor quality of life and reduction in the ability of daily *** vascular function and diastolic dysfunction cause lower cardiac output while decreased skeletal muscle oxidative fibers,enzymes and capillarity cause arteriovenous oxygen difference,leading thus to decreased peak oxygen uptake in heart transplant *** training improves exercise capacity,cardiac and vascular endothelial function in heart transplant ***-rehabilitation regular aerobic or combined exercise is beneficial for patients with end-stage HF awaiting heart transplantation in order to maintain a higher fitness level and reduce complications afterwards like intensive care unit acquired weakness or cardiac *** hospitalized patients after heart transplantation should be referred to early mobilization of skeletal muscles through kinesiotherapy of the upper and lower limbs and respiratory physiotherapy in order to prevent infections of the respiratory system prior to hospital ***,all heart transplant recipients after hospital discharge who have not already participated in an early cardiac rehabilitation program should be referred to a rehabilitation center by their health care *** high intensity interval training seems to have more benefits than moderate intensity continuous training,especially in stable transplant patients,individualized training based on the abilities and needs of each patient still remains the most appropriate *** rehabilitation appears to be safe in heart transplant ***,long-term follow-up data is incomplete and,therefore,further high quality and adequately-powered studies are needed to demonstrate the long-term benefits of exercise training in this popu

关键词： Heart transplantation Endothelial dysfunction Exercise training High intensity interval training Moderate intensity continuous training Cardiac rehabilitation

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Snapshot imaging of ultrashort electron bunches

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Light(Science & Applications) 2024年第7期13卷 1226-1228页

作者： andreas Döpp Ludwig-Maximilian-Universität München Am Coulombwall 185748GarchingGermany Max Planck Institut für Quantenoptik Hans-Kopfermann-Strasse 1Garching85748Germany

New measurements combine spatial and temporal information from optical transition radiation to estimate the three-dimensional structure of electron bunches from a laser wakefield accelerator.

关键词： ultrashort Snapshot electron

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Dependence of impact regime boundaries on the initial temperatures of projectiles and targets

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Defence Technology（防务技术） 2024年第1期31卷 49-57页

作者： Stefano Signetti andreas Heine Fraunhofer-Institut für Kurzzeitdynamik Ernst-Mach-InstitutEMIErnst-Zermelo-Str.479104 Freiburg im BreisgauGermany

Towards higher impact velocities,ballistic events are increasingly determined by the material *** effects might range from moderate thermal softening to full phase *** particular,it is of great interest to quantify the conditions for incipient or full melting of metals during impact interactions,which result in a transition from still strength-affected to hydrodynamic material *** this work,we investigate to which extent the respective melting thresholds are also dependent on the initial,and generally elevated,temperatures of projectiles and targets before *** is studied through the application of a model developed recently by the authors to characterize the transition regime between high-velocity and hypervelocity impact,for which the melting thresholds of materials were used as the defining *** obtained results are expected to be of general interest for ballistic application cases where projectiles or targets are *** conditions might result,for example,from aerodynamic forces acting onto a projectile during atmospheric flight,explosive shapedcharge-jet formation or armor exposure to environmental *** performed analyses also broaden the scientific understanding of the relevance of temperature in penetration events,generally known since the 1960s,but often not considered thoroughly in impact studies.

关键词： Ballistic impact Thermal effects Metallic targets Energy partitioning Homologous temperature

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Sonographic muscle mass assessment in patients after cardiac surgery

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World Journal of Cardiology 2020年第7期12卷 351-361页

作者： Stavros Dimopoulos Vasiliki Raidou Dimitrios Elaiopoulos Foteini Chatzivasiloglou Despoina Markantonaki Efterpi Lyberopoulou Ioannis Vasileiadis Katerina Marathias Serafeim Nanas andreas karabinis Department of Cardiac Surgery ICU Onassis Cardiac Surgery CenterAthens 17674Greece Clinical Ergospirometry Exercise and Rehabilitation LaboratoryNational and Kapodistrian University of AthensAthens 10676Greece

BACKGROUND Patients undergoing cardiac surgery particularly those with comorbidities and frailty,experience frequently higher rates of post-operative morbidity,mortality and prolonged hospital length of *** mass wasting seems to play important role in prolonged mechanical ventilation(MV)and consequently in intensive care unit(ICU)and hospital *** To investigate the clinical value of skeletal muscle mass assessed by ultrasound early after cardiac surgery in terms of duration of MV and ICU length of *** In this observational study,we enrolled consecutively all patients,following their admission in the Cardiac Surgery ICU within 24 h of cardiac *** ultrasound scans,for the assessment of quadriceps muscle thickness,were performed at baseline and every 48 h for seven days or until ICU *** strength was also evaluated in parallel,using the Medical Research Council(MRC)*** Of the total 221 patients enrolled,ultrasound scans and muscle strength assessment were finally performed in 165 patients(patients excluded if ICU stay<24 h).The muscle thickness of rectus femoris(RF),was slightly decreased by 2.2%[(95%confidence interval(CI):-0.21 to 0.15),n=9;P=0.729]and the combined muscle thickness of the vastus intermedius(VI)and RF decreased by 3.5%[(95%CI:-0.4 to 0.22),n=9;P=0.530].Patients whose combined VI and RF muscle thickness was below the recorded median values(2.5 cm)on day 1(n=80),stayed longer in the ICU(47±74 h vs 28±45 h,P=0.02)and remained mechanically ventilated more(17±9 h vs 14±9 h,P=0.05).Moreover,patients with MRC score≤48 on day 3(n=7),required prolonged MV support compared to patients with MRC score≥49(n=33),(44±14 h vs 19±9 h,P=0.006)and had a longer duration of extracorporeal circulation was(159±91 min vs 112±71 min,P=0.025).CONCLUSION Skeletal quadriceps muscle thickness assessed by ultrasound shows a trend to a decrease in patients after cardiac surgery post-ICU admission and is associated with prolong

关键词： Intensive care unit-acquired weakness Cardiac surgery Skeletal muscle wasting Muscle ultrasound Quadriceps femoris Muscle mass

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The interaction between a shaped charge jet and a single moving plate

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Defence Technology（防务技术） 2024年第1期31卷 1-13页

作者： andreas Helte Jonas Lundgren Jonas Candle FOI WeaponsProtection and SecuritySE-16490StockholmSweden

Reactive armour is a very efficient add-on armour against shaped charge *** reactive armour consists of one or several plates that are accelerated by an *** but less violent acceleration of plates can also be achieved in a completely inert reactive *** be efficient against elongated jets,the motion of the plates needs to be inclined against the jet such that a sliding contact between the jet and the plates is *** sliding contact causes a deflection and thinning of the *** certain circumstances,the contact will become unstable,leading to severe disturbances on the *** disturbances will drastically reduce the jet penetration performance and it is therefore of interest to study the conditions that leads to an unstable *** studies on the interaction between shaped charge jets and flyer plates have shown that it is mainly the forward moving plate in an explosive reactive armour that is effective in disturbing the *** is usually attributed to the higher plate-to-jet mass flux ratio involved in the collision of the forward moving plate compared to the backward moving *** slow moving plates,as occurs in inert reactive armour,the difference in mass flux for the forward and backward moving plate is much lesser,and it is therefore of interest to study if other factors than the mass flux influences on the protection *** this work,experiments have been performed where a plate is accelerated along its length,interacting with a shaped charge jet that is fired at an oblique angle to the plate’s normal,either against or along the plate’s *** arrangement corresponds to a jet interacting with a flyer plate from a reactive armour,with the exception that the collision velocity is the same for both types of obliquities in these *** experiments show that disturbances on the jet are different in the two cases even though the collision velocities are the *** simulatio

关键词： Reactive armour Flyer plate Shaped charge jet

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Note on:“Ballistic model for the prediction of penetration depth and residual velocity in adobe:A new interpretation of the ballistic resistance of earthen masonry”

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Defence Technology（防务技术） 2024年第1期31卷 607-609页

作者： andreas Heine Matthias Wickert Fraunhofer EMI Ernst-Zermelo-Str.479104FreiburgGermany

A recently published modeling approach for the penetration into adobe and previous approaches implicitly criticized are reviewed and *** article contains a note on the paper titled“Ballistic model for the prediction of penetration depth and residual velocity in adobe:A new interpretation of the ballistic resistance of earthen masonry”(DOI:https://***/10.1016/***.2018.07.017).Reply to the Note from Li Piani et al is linked to this article.

关键词： adobe prediction earth

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Cholesterol business:lifeor death byrust

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1247-1248页

作者： Shubhangi Gavalil Francesca Maremonti andreas Linkermann Division of Nephrology Department of Internal Medicine 3University Hospital Carl Gustav Carus at the Technische Universitat DresdenDresdenGermany Division of Nephrology Department of MedicineAlbert Einstein College of MedicineBronxNYUSA

In two recent manuscripts published in Nature,the cholesterol-synthesis pathway was identified as a master regulator of ferroptosis sensitivity and therefore as a novel therapeutic target.1,2 Ferroptosis does not only represent one way to eliminate cancer cells,but also contributes to acute organ damage in the kidney,heart,brain,and liver,and it kills tissues during the process of organ *** term“ferroptosis”should be defined as a cellular process of iron-catalyzed lipid peroxidation-mediated rupture of the plasma membrane.

关键词： rupture death damage

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Odd-even effects in the structure and properties of aryl-substituted aliphatic self-assembled monolayers

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Nano Research 2024年第5期17卷 4231-4243页

作者： Piotr Cyganik andreas Terfort Michael Zharnikov Jagiellonian University Faculty of PhysicsAstronomy and Applied Computer ScienceSmoluchowski Institute of PhysicsŁojasiewicza 1130-348 KrakówPoland Institut für Anorganische und Analytische Chemie Universität FrankfurtMax-von-Laue-Straße 760438 FrankfurtGermany Applied Physical Chemistry Heidelberg UniversityIm Neuenheimer Feld 25369120 HeidelbergGermany

Self-assembled monolayers(SAMs)represent an important tool in context of nanofabrication and molecular engineering of surfaces and *** properties of functional SAMs depend not only on the character of the tail groups at the SAM-ambient interface,but are also largely defined by their *** its turn,the latter parameter results from a complex interplay of the structural forces and a variety of other factors,including so called odd-even effects,*** of the SAM structure and properties on the parity of the number(odd or even)of individual building blocks in the backbone of the SAM *** most impressive manifestation of the odd-even effects is the structure of aryl-substituted alkanethiolate SAMs on Au(111)and Ag(111),in which,in spite of the fact that the intermolecular interaction is mostly determined by the aryl part of the monolayers,one observes a pronounced dependence of molecular inclination and,consequently,the packing density of the SAM-forming molecules on the parity of number of methylene units in the alkyl *** we review the properties of the above systems as well as address fundamental reasons behind the odd-even effects,including the existence of a so-called bending potential,which is frequently disregarded in analysis of the structure-building *** generality of the odd-even effects in SAMs is additionally supported by the recent data for SAMs on GaAs,scanning tunneling microscopy data for SAMs on Ag(111),and the data for the monolayers with selenolate and carboxyl anchoring groups on Au(111)and Ag(111).The implications of these effects in terms of the control over the packing density and orientation of the tail groups at the SAM-ambient interface,structural perfection,polymorphism,temperature-driven phase transitions,and SAM stability toward such factors as ionizing radiation,exchange reaction,and electrochemical desorption are *** implications place the odd-even effects as an important tool

关键词： self-assembled monolayers molecular films surface and interface engineering odd-even-effects

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