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Right ventricle assessment

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https://www.readbyqxmd.com/read/28806783/the-utilization-of-critical-care-ultrasound-to-assess-hemodynamics-and-lung-pathology-on-icu-admission-and-the-potential-for-predicting-outcome
#1
Wanhong Yin, Yi Li, Xueying Zeng, Yao Qin, Dong Wang, Tongjuan Zou, Ling Su, Yan Kang
AIM: Critical care ultrasound (CCUS) has been used by many Intensive Care Units(ICUs) worldwide, so as to guiding the diagnosis and the treatment. However, none of the publications currently systematically describe the utilization of CCUS to analyze the characteristics of hemodynamics and lung pathology upon the new admission to ICU and its potential role in patients' prognosis prediction. In this retrospective clinical study, we have demonstrated and analyzed the characteristics of hemodynamics and lung pathology assessed by CCUS and investigated its potential to predict patient outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28803684/role-of-two-dimensional-speckle-tracking-echocardiography-strain-in-the-assessment-of%C3%A2-right-ventricular-systolic-function-and-comparison-with-conventional-parameters
#2
REVIEW
Luca Longobardo, Valentin Suma, Renuka Jain, Scipione Carerj, Concetta Zito, Dianne L Zwicke, Bijoy K Khandheria
Despite the already well-known role the right side of the heart plays in many diseases, right ventricular (RV) function has only recently been carefully considered. Echocardiography is the first-line diagnostic technique for the assessment of the right ventricle and right atrium, whereas cardiac magnetic resonance is considered the gold standard but is limited by cost and availability. According to the current guidelines, systolic RV function should be assessed by several conventional measurements, but the efficacy of these parameters as diagnostic and prognostic tools has been questioned by many authors...
August 10, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28803252/two-dimensional-echocardiography-estimates-of-fetal-ventricular-mass-throughout-gestation
#3
Christina Y L Aye, Adam James Lewandowski, Eric O Ohuma, Ross Upton, Alice Packham, Yvonne Kenworthy, Fenella Roseman, Tess Norris, Malid Molloholli, Sikolia Wanyonyi, Aris T Papageorghiou, Paul Leeson
BACKGROUND: Two-dimensional (2D) ultrasound quality has improved in recent years. Quantification of cardiac dimensions is important to screen and monitor certain fetal conditions. We assessed the feasibility and reproducibility of fetal ventricular measures using 2D echocardiography, reported normal ranges in our cohort, and compared estimates to other modalities. METHODS: Mass and end-diastolic volume were estimated by manual contouring in the four-chamber view using TomTec Image Arena 4...
August 12, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28798258/preserved-right-ventricular-integrity-in-a-new-telemetric-rat-model-of-severe-pulmonary-hypertension
#4
Catharina Schreiber, Magdalena S Eilenberg, Attila Kiss, Helga Bergmeister, Bruno K Podesser, Julia Mascherbauer, Diana Bonderman
Telemetric monitoring of hemodynamic parameters has become an established standard in experimental models of pulmonary arterial hypertension (PAH). To that purpose, a dedicated catheter is usually implanted through the right ventricular wall of study animals. Drawbacks of this standard technique are: obtained pressures are from the right ventricle and therefore only surrogates for pulmonary arterial pressures, and furthermore, right ventricular myocardium is always damaged to a certain degree. To overcome shortcomings of standard hemodynamic assessment, we modified an established rat model, where severe PAH is induced by left-sided pneumonectomy plus monocrotaline injection...
August 10, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28795839/adverse-heart-lung-interactions-in-ventilator-induced-lung-injury
#5
Bhushan H Katira, Regan E Giesinger, Doreen Engelberts, Diana Zabini, Alik Kornecki, Gail Otulakowski, Takeshi Yoshida, Wolfgang M Kuebler, Patrick J McNamara, Kim A Connelly, Brian P Kavanagh
RATIONALE: The original in vivo study of ventilator-induced lung injury by Webb and Tierney (1974) reported that high VT with zero PEEP caused overwhelming lung injury, subsequently shown by others to be due to lung shear stress. OBJECTIVE: To reproduce the lung injury and edema in the 'Webb and Tierney' study and investigate the mechanism. METHODS: Sprague-Dawley rats (≈400 g) received mechanical ventilation for 60 min according to the protocol of Webb and Tierney (14/0, 30/0, 45/10, 45/0 cmH2O)...
August 10, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28791264/prediction-of-pregnancy-complication-occurrence-using-fetal-cardiac-output-assessments-made-by-ultrasonography-at-20-to-24-weeks-of-gestation
#6
Ji Yeon Lee, Young Li Kim, Ji Eun Jeong, Jun Woo Ahn
OBJECTIVE: To evaluate the importance of assessment of fetal cardiac output (CO) for the prediction of complications of pregnancy. METHODS: We evaluated 65 fetuses and all of them had a fetal cardiac scan at 20 to 24 weeks of pregnancy. To measure CO, diameters (d) of the left right ventricle outflow tract were measured just above the valves. Each left CO (LCO) and right CO (RCO) was derived using the following equation: CO = velocity time integral × π × d(2)/4 × heart rate...
July 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28790928/enhanced-right-chamber-remodeling-in-endurance-ultra-trail-athletes-compared-to-marathon-runners-detected-by-standard-and-speckle-tracking-echocardiography
#7
Kristian Ujka, Luca Bastiani, Gennaro D'Angelo, Bruna Catuzzo, Alessandro Tonacci, Simona Mrakic-Sposta, Alessandra Vezzoli, Guido Giardini, Lorenza Pratali
Background: Strenuous and endurance exercise training have been associated with morphological and functional heart remodeling. Two-dimensional speckle-tracking echocardiography (STE) is a novel technique that allows an accurate quantification of global myocardium deformation. Our aim was to evaluate together left and right cardiac remodeling in different long-distance running athletes: marathon runners (42 km) (M) and endurance mountain runners (>300 Km) (UT). Methods: A total of 92 athletes (70 males, 76%) including 47 M [age 45 ± 7 years; training: 18 (9-53) years(*)days/week], 45 UT [age 42 ± 9, training: 30 (15-66) years(*)days/week] underwent conventional echocardiography and STE (Beyond Diogenes 2...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28780036/transcatheter-tricuspid-valve-repair-with%C3%A2-a-new-transcatheter-coaptation-system-for-the-treatment-of-severe-tricuspid-regurgitation-1-year-clinical-and-echocardiographic-results
#8
Gidon Perlman, Fabien Praz, Rishi Puri, Hadass Ofek, Jian Ye, Francois Philippon, Thierry Carrel, Philippe Pibarot, Adrian Attinger, Nay Min Htun, Danny Dvir, Robert Moss, Francisco Campelo-Parada, Elisabeth Bédard, David Reineke, Aris Moschovitis, Sandra Lauck, Philipp Blanke, Jonathon Leipsic, Stephan Windecker, Josep Rodés-Cabau, John Webb
OBJECTIVES: This study sought to describe the 1-year experience with the transcatheter FORMA system for severe tricuspid regurgitation (TR). BACKGROUND: Severe TR is associated with significant morbidity and mortality. Novel transcatheter therapies have been recently developed. METHODS: Eighteen patients underwent device implantation at 3 centers in Canada and Switzerland. Baseline characteristics, procedural, 30-day, and 1-year outcomes were prospectively evaluated using multimodality imaging and hemodynamic and clinical assessments...
July 27, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28767504/echocardiography-in-the-evaluation-of-pulmonary-embolism
#9
Tanya Dutta, William H Frishman, Wilbert S Aronow
Pulmonary embolism is a major cause of mortality. Acute pulmonary embolism also encompasses a wide clinical spectrum of severity, ranging from asymptomatic silent disease to hemodynamic instability and shock. Echocardiography is a useful modality to improve treatment strategies for pulmonary embolus. Echocardiography plays a role in risk stratification at the time of diagnosis. The evaluation of the right ventricle (RV) has evolved over time. RV variables evaluated by echocardiography include RV size, RV/left ventricular (LV) ratio, RV fractional area of change, tricuspid annular plane systolic excursion, RV systolic pressure and RV Tei index...
June 22, 2017: Cardiology in Review
https://www.readbyqxmd.com/read/28766919/turbulent-kinetic-energy-in-the-right-ventricle-potential-mr-marker-for-risk-stratification-of-adults-with-repaired-tetralogy-of-fallot
#10
Alexandru Fredriksson, Aleksandra Trzebiatowska-Krzynska, Petter Dyverfeldt, Jan Engvall, Tino Ebbers, Carl-Johan Carlhäll
PURPOSE: To assess right ventricular (RV) turbulent kinetic energy (TKE) in patients with repaired Tetralogy of Fallot (rToF) and a spectrum of pulmonary regurgitation (PR), as well as to investigate the relationship between these 4D flow markers and RV remodeling. MATERIALS AND METHODS: Seventeen patients with rToF and 10 healthy controls were included in the study. Patients were divided into two groups based on PR fraction: one lower PR fraction group (≤11%) and one higher PR fraction group (>11%)...
August 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28764825/living-with-tricuspid-atresia-case-report-with-review-of-literature
#11
Brittany Watson Frock, Amy J Jnah, Desi M Newberry
Tricuspid atresia (TA) is a rare congenital heart defect in which the right atrioventricular connection, the tricuspid valve, is absent. As a result, there is no direct communication between the right atrium and right ventricle. Surgical treatment, including the Fontan procedure, is indicated yet palliative, leaving patients with various lifelong complications. A comprehensive literature review revealed a paucity of evidence-based education on the identification, evaluation, management, treatment, and life span implications of TA...
July 1, 2017: Neonatal Network: NN
https://www.readbyqxmd.com/read/28754163/choroid-plexus-cerebrospinal-fluid-route-for-monocyte-derived-macrophages-after-stroke
#12
Ruimin Ge, Daniel Tornero, Masao Hirota, Emanuela Monni, Cecilia Laterza, Olle Lindvall, Zaal Kokaia
BACKGROUND: Choroid plexus (CP) supports the entry of monocyte-derived macrophages (MDMs) to the central nervous system in animal models of traumatic brain injury, spinal cord injury, and Alzheimer's disease. Whether the CP is involved in the recruitment of MDMs to the injured brain after ischemic stroke is unknown. METHODS: Adult male C57BL/6 mice were subjected to focal cortical ischemia by permanent occlusion of the distal branch of the right middle cerebral artery...
July 28, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28753548/assessment-of-strain-and-dyssynchrony-in-normal-fetuses-using-speckle-tracking-echocardiography-comparison-of-three-different-ultrasound-probes
#13
Daniel Rolf, Rene Schmidt, Mareike Möllers, Kathrin Oelmeier de Murcia, Janina Braun, Kerstin Hammer, Walter Klockenbusch, Ralf Schmitz
OBJECTIVE: To evaluate segmental left (LV-S) and right (RV-S) ventricular strain as well as longitudinal mechanical myocardial dyssynchrony as a time difference between peaks in strain of both ventricles in fetuses (two-chamber-dyssynchrony, 2C-DYS) using speckle tracking echocardiography (STE). The aim of our study was to evaluate the influence of data acquisition on the results of STE measurement using different ultrasound probes. METHODS: We prospectively recorded cardiac cycles of four-chamber views of 56 normal fetuses with three different ultrasound probes and analyzed them offline with speckle tracking imaging software...
July 28, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28752570/a-preliminary-comparison-of-two-dimensional-speckle-tracking-echocardiography-and-pressure-volume-loop-analysis-in-patients-with-fontan-physiology-the-role-of-ventricular-morphology
#14
David Steflik, Ryan J Butts, George H Baker, Varsha Bandisode, Andrew Savage, Andrew M Atz, Shahryar M Chowdhury
OBJECTIVE: Speckle tracking echocardiography (STE) may be a useful modality for assessing ventricular performance in patients with single ventricle physiology. However, STE's ability to accurately assess ventricular performance in this population is unknown. The objective of this study was to perform a preliminary comparison of STE measures of myocardial deformation to reference standard measures of function derived from pressure-volume loop (PVL) analysis. DESIGN: This was a secondary analysis of a prospective study investigating PVLs in patients with Fontan physiology...
July 28, 2017: Echocardiography
https://www.readbyqxmd.com/read/28742532/pulmonary-pressure-assessment-with-the-total-artificial-heart
#15
David L Joyce, Margaret M Redfield, Sudhir S Kushwaha, Atta Behfar, Barry A Borlaug, Richard C Daly, Gurpreet S Sandhu, Lyle D Joyce
Reversal of pulmonary hypertension has been observed in patients during a bridge to transplant with a left ventricular assist device. Total artificial heart (TAH) implant prevents subsequent right heart catheterization. Consequently, controversy exists over whether the prosthetic right ventricle improves or exacerbates pulmonary hypertension. A pulmonary artery (PA) pressure monitor was placed in two patients undergoing TAH implant, as a bridge to transplant. One patient had pulmonary hypertension at implant; the other had normal pulmonary pressures...
July 24, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28733311/regional-septal-hinge-point-injury-contributes-to-adverse-biventricular-interactions-in-pulmonary-hypertension
#16
Eva Amalie Nielsen, Kenichi Okumura, Mei Sun, Vibeke E Hjortdal, Andrew N Redington, Mark K Friedberg
Death and morbidity in pulmonary arterial hypertension (PAH) are often due to right ventricular (RV) failure and associated left ventricular (LV) dysfunction. We investigated regional myocardial remodeling and function as the basis for adverse ventricular-ventricular interactions in experimental chronic RV pressure overload. Two distinct animal models were studied: A rabbit model of increased RV pressure-load through progressive pulmonary artery banding A rat model of monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH)...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28722131/kept-in-the-loop-longitudinal-strain-volume-relationships-for-the-assessment-of-left-ventricular-mechanical-performance
#17
Stephen P Wright, Robert Lakin, Denise J Wooding, Leah Groves
No abstract text is available yet for this article.
July 19, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28716430/non-invasive-evaluation-of-right-ventricular-function-with-real-time-3-d-echocardiography
#18
Ran Chen, Meihua Zhu, Kacie Amacher, Xia Wu, David J Sahn, Muhammad Ashraf
The aim of this study was to evaluate the accuracy and feasibility of real-time 3-D echocardiography (3-DE) in assessing right ventricular (RV) systolic function. A latex balloon was inserted into the right ventricle of 20 freshly harvested pig hearts which were then passively driven by a pulsatile pump apparatus. The RV global longitudinal strain (GLS), global circumferential strain (GCS), global area strain (GAS) and RV ejection fraction (RVEF), derived from 3-DE, as well as the RVEF obtained from 2-D echocardiography (2-DE) were quantified at different stroke volumes (30-70 mL) and compared with sonomicrometry data...
July 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28708599/assessing-right-ventricular-function-in-pulmonary-hypertension-patients-and-the-correlation-with-the-new-york-heart-association-nyha-classification
#19
Xiaoke Shang, Shuna Xiao, Nianguo Dong, Rong Lu, Lijun Wang, Bin Wang, Yousan Chen, Liang Zhong, Mei Liu
This investigation aimed to compare the pressure-volume loop (PV loop) measurements in three less symptomatic categories (New York Heart Association classes , NYHA I, II, and III) of pulmonary hypertension (PH) patients since NYHA classification system performance is limited by the shortcomings discussed above.Thirty-six patients were enrolled in this study with PV loop measurement acquisition via micro-conductance catheters. Functional classification according to NYHA was determined with comprehensive assessing function and activity...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28705875/electrical-and-structural-substrate-of-arrhythmogenic-right-ventricular-cardiomyopathy-determined-using-noninvasive-electrocardiographic-imaging-and-late-gadolinium-magnetic-resonance-imaging
#20
Christopher M Andrews, Neil T Srinivasan, Stefania Rosmini, Heerajnarain Bulluck, Michele Orini, Sharon Jenkins, Antonis Pantazis, William J McKenna, James C Moon, Pier D Lambiase, Yoram Rudy
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a significant cause of sudden cardiac death in the young. Improved noninvasive assessment of ARVC and better understanding of the disease substrate are important for improving patient outcomes. METHODS AND RESULTS: We studied 20 genotyped ARVC patients with a broad spectrum of disease using electrocardiographic imaging (a method for noninvasive cardiac electrophysiology mapping) and advanced late gadolinium enhancement cardiac magnetic resonance scar imaging...
July 2017: Circulation. Arrhythmia and Electrophysiology
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