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https://www.readbyqxmd.com/read/29224256/echocardiographic-estimates-of-right-ventricular-systolic-function-in-dogs-with-myxomatous-mitral-valve-disease
#1
E H Chapel, B A Scansen, K E Schober, J D Bonagura
BACKGROUND: Right ventricular (RV) dysfunction independently predicts outcomes in human myxomatous mitral valve disease (MMVD). There is limited information regarding RV systolic function in dogs with MMVD. HYPOTHESIS: Right ventricular systolic function differs among stages of disease, decreasing in decompensated MMVD. ANIMALS: Thirty-sixclient-owned dogs with MMVD not receiving oral cardiovascular medications. METHODS: Prospective clinical study...
December 10, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29214659/2d-speckle-tracking-echocardiography-of-the-right-ventricle-free-wall-in-scuba-divers-after-single-open-sea-dive
#2
Zora Susilovic-Grabovac, Ante Obad, Darko Duplančić, Ivana Banić, Denise Brusoni, Piergiuseppe Agostoni, Ivica Vuković, Zeljko Dujic, Darija Bakovic
The presence of circulating gas bubbles and their influence on pulmonary and right heart hemodynamics was reported after uncomplicated self-contained underwater breathing apparatus (SCUBA) dive(s). Improvements in cardiac imaging have recently focused great attention on the right ventricle (RV). The aim of our study was to evaluate possible effects of a single air SCUBA dive on RV function using 2D speckle tracking echocardiography in healthy divers after single open sea dive to 18 meters of seawater, followed by bottom stay of 47 minutes with a direct ascent to the surface...
December 7, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29208632/right-ventricular-exercise-contractile-reserve-and-outcomes-after-early-surgery-for-primary-mitral-regurgitation
#3
Emilie Vitel, Elena Galli, Christophe Leclercq, Maxime Fournet, Christian Bosseau, Hervé Corbineau, Guillame Bouzille, Erwan Donal
OBJECTIVE: To assess if the lack of development of right ventricular (RV) contractile reserve during exercise echocardiography (ex-echo) might be a predictor of postoperative major adverse cardiovascular events (MACEs) in patients with primary mitral regurgitation (pMR) undergoing early surgery. METHODS: Comprehensive resting and ex-echo were performed in 142 asymptomatic patients (58±21 years, 68% men, New York Heart Association functional class ≤2) with isolated severe pMR and preserved left ventricular (LV) function (LV ejection >60%, LV end-systolic diameter <45 mm) undergoing mitral valve replacement (n=20) or repair...
December 5, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29202543/-experts-consensus-on-the-management-of-the-right-heart-function-in-critically-ill-patients
#4
X T Wang, D W Liu, H M Zhang, Y Long, X D Guan, H B Qiu, K J Yu, J Yan, H Zhao, Y Q Tang, X Ding, X C Ma, W Du, Y Kang, B Tang, Y H Ai, H W He, D C Chen, H Chen, W Z Chai, X Zhou, N Cui, H Wang, X Rui, Z J Hu, J G Li, Y Xu, Y Yang, B Ouyan, H Y Lin, Y M Li, X Y Wan, R L Yang, Y Z Qin, Y G Chao, Z Y Xie, R H Sun, Z Y He, D F Wang, Q Q Huang, D P Jiang, X Y Cao, R G Yu, X Wang, X K Chen, J F Wu, L N Zhang, M G Yin, L X Liu, S W Li, Z J Chen, Z Luo
To establish the experts consensus on the right heart function management in critically ill patients. The panel of consensus was composed of 30 experts in critical care medicine who are all members of Critical Hemodynamic Therapy Collaboration Group (CHTC Group). Each statement was assessed based on the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) principle. Then the Delphi method was adopted by 52 experts to reassess all the statements. (1) Right heart function is prone to be affected in critically illness, which will result in a auto-exaggerated vicious cycle...
December 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29195659/validation-of-cardiac-magnetic-resonance-tissue-tracking-in-the-rapid-assessment-of-rv-function-a%C3%A2-comparative-study-to-echocardiography
#5
X Tong, J Poon, A Li, C Kit, A Yamada, K Shiino, L F Ling, Y H Choe, J Chan, Y-K Lau, M-Y Ng
AIM: To investigate the accuracy of cardiac magnetic resonance (CMR) tissue tracking (CMR-TT) and speckle tracking echocardiography (STE) against CMR determined right ventricular (RV) ejection fraction (RVEF) and to identify an optimal cut-off value for STE and CMR-TT to determine RVEF <45% and compare this to other conventional methods for estimating RVEF in dilated cardiomyopathy (DCM) patients. MATERIALS AND METHODS: Twenty-nine DCM patients were recruited prospectively...
November 28, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29191504/predictors-of-in-hospital-mortality-in-patients-with-st-segment-elevation-myocardial-infarction-complicated-with-cardiogenic-shock
#6
Mert İlker Hayıroğlu, Muhammed Keskin, Ahmet Okan Uzun, Duygu İlke Yıldırım, Adnan Kaya, Göksel Çinier, Emrah Bozbeyoğlu, Özlem Yıldırımtürk, Ömer Kozan, Seçkin Pehlivanoğlu
BACKGROUND: ST-segment elevation myocardial infarction (STEMI) complicated with cardiogenic shock (CS) remains as an unresolved condition causing high morbidity and mortality despite advances in medical treatment and coronary intervention procedures. In the current study, we evaluated the predictors of in-hospital mortality of STEMI complicated with CS. METHODS: In this retrospective study, we evaluated the predictive value of baseline characteristics, angiographic, echocardiographic and laboratory parameters on in-hospital mortality of 319 patients with STEMI complicated with CS who were treated with primary percutaneous coronary intervention...
November 14, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29178142/three-dimensional-echocardiography-to-evaluate-right-atrial-volume-and-phasic-function-in-pulmonary-hypertension
#7
Xiangli Meng, Yidan Li, Hong Li, Xiuzhang Lv
OBJECTIVE: Pulmonary hypertension (PH) impairs right ventricular (RV) systolic and diastolic function, which in turn induces compensatory changes in right atrial (RA) function; the diverse effects on RA function are subject to much debate. We hypothesized that RA function plays a more important role in compensating RV dysfunction, than mere prevention of clinical failure in patients with PH. METHODS: We studied 54 patients with PH and 23 healthy controls. RA volume, including maximum RA volume, minimum RA volume, and the volume before atrial systole, was evaluated by 3DE...
November 26, 2017: Echocardiography
https://www.readbyqxmd.com/read/29174452/diagnosing-centrally-located-pulmonary-embolisms-in-the-emergency-department-using-point-of-care-ultrasound
#8
Kristin H Dwyer, Joshua S Rempell, Michael B Stone
OBJECTIVE: The study objective was to investigate the combined accuracy of right heart strain on focused cardiac ultrasound (FOCUS) and deep vein thrombosis (DVT) on compression ultrasound (CUS) for identification of centrally located pulmonary embolism (PE) diagnosed on computed tomography pulmonary angiography (CTPA). METHODS: This was a prospective observational study using a convenience sample of patients undergoing CTPA in the emergency department (ED) for evaluation of PE...
November 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29174250/assessment-of-right-ventriclular-systolic-function-prior-to-cardiac-resynchronization-therapy-does-it-make-any-difference
#9
Mohamed A Abdelhamid, Mazen T Ghanem, Ayman M Abdelmotaleb
BACKGROUND: Cardiac resynchronization therapy (CRT) is an effective treatment for patients with advanced heart failure (HF). Nearly 30% of candidates are inadequate responders. The benefit of patients with right sided heart failure from CRT is still a matter of debate. We examined the effect of CRT on right ventricular (RV) dimensions and overall systolic function and whether RV function prior to CRT could have an impact on CRT response. METHODS: 94 patients with a mean age of 53...
November 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/29143104/left-ventricular-end-diastolic-dimension-and-septal-e-are-predictors-of-cardiac-index-at-rest-while-tricuspid-annular-plane-systolic-excursion-is-a-predictor-of-peak-oxygen-uptake-in-patients-with-pulmonary-hypertension
#10
Yoshihisa Nakano, Naoki Okumura, Shiro Adachi, Shigetake Shimokata, Fumitaka Tajima, Yoshihiro Kamimura, Toyoaki Murohara, Takahisa Kondo
Little is known regarding a correlation of hemodynamics at rest or exercise capacity with echocardiographic parameters in patients with pulmonary hypertension (PH). To clarify these potential correlations, we performed transthoracic echocardiography, right heart catheterization, and cardiopulmonary exercise testing in 53 patients with pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). Left ventricular end-diastolic dimension (LVDd), early diastolic velocity of the septal mitral annulus (septal e'), tricuspid regurgitation peak gradient (TRPG), and tricuspid annular plane systolic excursion (TAPSE) were significantly correlated with cardiac index (LVDd; r = 0...
November 15, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29127236/structural-and-functional-changes-of-the-pulmonary-vasculature-after-hypoxia-exposure-in-the-neonatal-period-a-new-swine-model-of-pulmonary-vascular-disease
#11
Daphne P M de Wijs-Meijler, Richard W B van Duin, Dirk J Duncker, Urs Scherrer, Claudio Sartori, Irwin K M Reiss, Daphne Merkus
Pulmonary vascular disease (PVD) represents an underestimated and increasing clinical burden in the neonatal period, but also later in life, when exercise-tolerance is decreased. Animal models performing long-term follow-up after a perinatal insult are lacking. This study aimed to develop and characterize a neonatal swine model with hypoxia-induced PVD, during long-term follow-up after re-exposure to normoxia, and to investigate the exercise response in this model. Piglets were exposed to a normoxic (N=10) or hypoxic environment (N=9) for four weeks...
November 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29121956/regional-differences-in-prognostic-value-of-cardiac-valve-plane-displacement-in-systemic-light-chain-amyloidosis
#12
Marco M Ochs, Thomas Fritz, Nisha Arenja, Johannes Riffel, Florian Andre, Derliz Mereles, Fabian Aus dem Siepen, Ute Hegenbart, Stefan Schönland, Hugo A Katus, Matthias G W Friedrich, Sebastian J Buss
BACKGROUND: To compare the prognostic value of cardiac valve plane displacement (CVPD) on various locations in cardiac light chain (AL) amyloidosis. METHODS: Consecutive patients with biopsy-proven cardiac involvement in AL amyloidosis who had undergone cardiovascular magnetic resonance (CMR) between 2005 and 2014 in our institution, were retrospectively identified and data analyzed. The primary combined endpoint was all-cause mortality or heart transplantation...
November 9, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29121072/accuracy-of-echocardiographic-indices-for-serial-monitoring-of-right-ventricular-systolic-function-in-patients-with-precapillary-pulmonary-hypertension
#13
Takahiro Sato, Ichizo Tsujino, Hiroshi Ohira, Noriko Oyama-Manabe, Yoichi M Ito, Chisa Takashina, Taku Watanabe, Masaharu Nishimura
BACKGROUND: Serial assessment of right ventricular ejection fraction (RVEF) predicts the clinical outcome of patients with pulmonary hypertension (PH). Cardiac magnetic resonance imaging (CMRI) enables RVEF monitoring, but its applicability is limited in clinical practice. This study aimed to examine the correlation between changes in CMRI-derived RVEF with those in echocardiographic indices in patients with precapillary PH. METHODS: CMRI and echocardiographic indices of RV systolic function were evaluated at baseline and follow-up in 54 consecutive patients with precapillary PH (pulmonary arterial hypertension (PAH), n = 23; non-PAH, n = 31)...
2017: PloS One
https://www.readbyqxmd.com/read/29119950/bio-inspired-composites-with-functionally-graded-platelets-exhibit-enhanced-stiffness
#14
Sanjay Tapse, Anup S
Unidirectional composites inspired from biological materials such as nacre, are composed of stiff platelets arranged in a staggered manner within a soft matrix. Elaborate analyses have been conducted on the aforementioned composites and they are found to have excellent mechanical properties like stiffness, strength and fracture toughness. The superior properties exhibited by these composites have been proved to be the result of its unique structure. An emerging development in the field of composite structures is Functionally Graded Composites(FGC), whose properties vary spatially and possess enhanced thermo-mechanical properties...
November 9, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/29118883/assessment-of-right-ventricular-function-by-newer-imaging-in-echocardiography-in-idiopathic-pulmonary-arterial-hypertension
#15
Priyanker Mondal, Prashant Kumar, Manish Vinayak, Anurag Passi, Dhurjati Prasad Sinha
Background: The aims of the study were to assess the right ventricular (RV) functions in patients with idiopathic pulmonary arterial hypertension (IPAH) with RV longitudinal strain (RVLS) in addition to conventional parameters, as well as its correlation with severity and prognosis in IPAH. Methods: Twenty-two IPAH patients were followed up for 1 year. ANOVA and Gabriel's pairwise comparison tests were used for comparison of RVLS with respect to WHO functional class status...
October 2017: Cardiology Research
https://www.readbyqxmd.com/read/29116970/assessment-of-tricuspid-annular-motion-by-speckle-tracking-in-anesthetized-patients-using-transesophageal-echocardiography
#16
Tao Shen, Michael H Picard, Lanqi Hua, Sara M Burns, Michael N Andrawes
BACKGROUND: The perioperative assessment of right ventricular (RV) function remains a challenge. Tricuspid annular plane systolic excursion (TAPSE) using M-mode is a widely used measure of RV function. However, accurate alignment of the ultrasound beam with the direction of annular movement can be difficult with transesophageal echocardiography (TEE) to measure TAPSE, precluding effective use of M-mode to measure annular excursion. Tracking of specular reflectors in the myocardium may provide an angle-independent method to assess annular motion with TEE...
November 7, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29112180/impaired-right-ventricle-function-as-predictor-of-early-mortality-in-patients-with-light-chain-cardiac-amyloidosis-assessed-in-the-cardiology-department
#17
Justyna Anna Szczygieł, Piotr Zbigniew Wieczorek, Joanna Drozd-Sokołowska, Piotr Michałek, Łukasz Mazurkiewicz, Marta Legatowicz-Koprowska, Ewa Walczak, Wiesław Wiktor Jędrzejczak, Jadwiga Dwilewicz-Trojaczek, Jacek Grzybowski
INTRODUCTION    Light-chain amyloidosis (AL amyloidosis) is the most common cardiac amyloidosis. Early mortality remains a substantial problem despite progress in treatment. OBJECTIVES    The aim of the study was to obtain a clinical profile of patients diagnosed with AL amyloidosis in the cardiology department, to define an early mortality cut-off point in this population, and to identify predictors of early mortality. PATIENTS AND METHODS    The analysis covered 30 patients (14 females, median age 61...
November 3, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29076284/right-ventricular-speckle-tracking-assessment-for-differentiation-of-pressure-versus-volume-overloaded-right-ventricle
#18
Anna Werther Evaldsson, Annika Ingvarsson, Johan Waktare, Gustav J Smith, Ulf Thilén, Martin Stagmo, Anders Roijer, Goran Rådegran, Carl Meurling
BACKGROUND: Right ventricular (RV) dysfunction may be caused by either pressure or volume overload. RV function is conventionally assessed with echocardiography using tricuspid annular plane systolic excursion (TAPSE), RV fractional area change (RVFAC), tricuspid lateral annular systolic velocity (S') and RV index of myocardial performance (RIMP). The purpose of this study was to evaluate whether RV global longitudinal strain (RVGLS) and RV-free wall strain (RV-free) could add additional information to differentiate these two causes of RV overload...
October 26, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29049673/incidence-and-echocardiographic-predictors-of-early-postoperative-right-ventricular-dysfunction-following-left-ventricular-assist-implantation-in-paediatric-patients
#19
Mathias Redlin, Oliver Miera, Helmut Habazettl, Joachim Photiadis, María Irene Carísimo-Cresta, Mathias Hommel, Benjamin O'Brien, Marian Kukucka
OBJECTIVES: Left ventricular assist device implantation is an established therapy for paediatric patients with end-stage heart failure. Early right ventricular dysfunction (RVD) after implantation still remains a challenge in the postoperative period. This study sought to determine the incidence of RVD and to identify echocardiographic predictors of RVD in paediatric patients, as well describing associated clinical outcome. METHODS: Prospectively collected preoperative echocardiographic, haemodynamic, demographic and biochemical data from 48 patients scheduled for left ventricular assist device implantation were evaluated...
July 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29042956/evaluation-of-the-hemodynamics-and-right-ventricular-function-in-pulmonary-hypertension-by-echocardiography-compared-with-right-sided-heart-catheterization
#20
Yidan Li, Yidan Wang, Hong Li, Weiwei Zhu, Xiangli Meng, Xiuzhang Lu
The present study aimed to evaluate hemodynamics and right ventricular function in patients with pulmonary hypertension (PH) using transthoracic echocardiography and to compare these results with measurements obtained using right-sided heart catheterization (RHC). A total of 75 patients with PH were examined using echocardiography and RHC. Patients were divided into the following two groups according to their difference between SPAPecho and SPAPRHC measurement: The overestimated group and underestimated group...
October 2017: Experimental and Therapeutic Medicine
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