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Echocardiographic

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https://www.readbyqxmd.com/read/28822669/left-ventricular-lead-position-guided-by-parametric-strain-echocardiography-improves-response-to-cardiac-resynchronization-therapy
#1
Donato Mele, Marianna Nardozza, Michele Malagù, Emanuela Leonetti, Cristina Fragale, Antonio Rondinella, Roberto Ferrari, Matteo Bertini
BACKGROUND: There is still a significant proportion of patients with heart failure who fail to improve after cardiac resynchronization therapy (CRT). The investigators used parametric two-dimensional speckle-tracking echocardiography with polar plots of the amplitude and timing of left ventricular (LV) longitudinal strain to guide implantation of the LV lead, with the aim of increasing CRT response. METHODS: Sixty-four patients who underwent LV lead implantation guided by two-dimensional speckle-tracking echocardiography (study group) and 64 patients treated with standard CRT implantation (control group) were retrospectively analyzed in this study...
August 16, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28822667/doppler-parameters-derived-from-transthoracic-echocardiography-accurately-detect-bioprosthetic-mitral-valve-dysfunction
#2
Ryan J Spencer, Ken G Gin, Michael Y C Tsang, Teresa S M Tsang, Parvathy Nair, Pui K Lee, John Jue
BACKGROUND: Detecting bioprosthetic mitral valve dysfunction on transthoracic echocardiography can be challenging because of acoustic shadowing of regurgitant jets and a wide normal range of transvalvular gradients. Several studies in mechanical mitral valves have demonstrated the utility of the transthoracically derived parameters E (peak early mitral inflow velocity), pressure half-time, and the ratio of mitral inflow velocity-time integral (VTIMV) to left ventricular outflow tract velocity-time integral (VTILVOT) in detecting significant prosthetic dysfunction...
August 16, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28822666/reliability-of-left-ventricular-ejection-fraction-from-three-dimensional-echocardiography-for-cardiotoxicity-onset-detection-in-patients-with-breast-cancer
#3
Cinzia Lorenzini, Claudio Lamberti, Michele Aquilina, Andrea Rocca, Pietro Cortesi, Cristiana Corsi
BACKGROUND: Cardiotoxicity is a well-known adverse effect of various chemotherapeutic agents that can be monitored by echocardiography. A decrease in left ventricular ejection fraction (LVEF) triggers consideration for therapy modification or interruption. The aim of this study was to evaluate how variability in LVEF estimates computed using three-dimensional echocardiography could influence cardiotoxicity onset detection. METHODS: One hundred eighty one patients with breast cancer treated with anthracycline and trastuzumab were analyzed...
August 16, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28820549/qishenyiqi-dripping-pill-improves-heart-failure-by-up-regulation-of-%C3%AE-2-adrenergic-receptor-expression
#4
Junfeng Sun, Hua Qian, Xiaoguang Li, Xianling Tang
BACKGROUND: QishenYiqi Dripping Pill (QYDP) is a Chinese herbal medicine that originally was used for the treatment of coronary artery disease. Recently, QYDP was used as a complementary treatment for heart failure (HF) in China. METHODS: An HF rat model was used to clarify the possible therapeutic effects of QYDP on HF. The HF rats were allocated to two groups, HF and HF+QYDP, while normal rats served as a negative control. Cardiac functions were evaluated echocardiographically and hemodynamically...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820540/endoscopic-port-access-surgery-for-late-orthotopic-cardiac-transplantation-atrioventricular-valve-disease
#5
Johan van der Merwe, Filip Casselman, Bernard Stockman, Yvette Vermeulen, Ivan Degrieck, Frank Van Praet
BACKGROUND: The study aim was to present details of the perioperative and long-term outcomes of redo-endoscopic port access surgery (REPAS) for late atrioventricular valve disease (AVVD) in orthotopic cardiac transplant (OCT) patients. METHODS: Between February 2004 and October 2015, REPAS was performed for late AVVD in seven consecutive OCT patients (mean age 57.9 ± 17.2 years; EuroSCORE II 21.2 ± 14.7%) at the authors' institution. The mean OCT-REPAS time interval was 7...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820034/the-value-of-adding-sub-valvular-procedures-for-chronic-ischemic-mitral-regurgitation-surgery-a-meta-analysis
#6
Marco Moscarelli, Thanos Athanasiou, Giuseppe Speziale, Prakash P Punjabi, George Malietzis, Patrizio Lancellotti, Khalil Fattouch
BACKGROUND: The most performed repair technique for the treatment of chronic ischemic mitral regurgitation in patients referred for bypass grafting remains restricted annuloplasty. However, it is associated with a high rate of failure, especially if severe tenting exists. OBJECTIVES: To understand if adjunctive sub-valvular mitral procedures may provide better repair performance. METHODS: A systematic literature review identified six studies of which five fulfilled the criteria for meta-analysis...
September 2017: Perfusion
https://www.readbyqxmd.com/read/28819869/new-echocardiographic-parameters-in-the-diagnosis-of-heart-failure-with-preserved-ejection-fraction
#7
Monika Špinarová, Jaroslav Meluzín, Helena Podroužková, Radka Štěpánová, Lenka Špinarová
Heart failure with preserved ejection fraction (HFpEF) is a serious clinical disease. The pathophysiology of HFpEF is complex, and specific diagnostic criteria have evolved over time. Limited data are available on the quantification of diastolic function using two-dimensional real-time echocardiography, and a simple parameter has not yet been established. The aim of this work is to evaluate new echocardiographic parameters-the diastolic wall strain of the posterior wall (DWS PW) and the vortex formation time (VFT)...
August 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28819094/atrioventricular-conduction-delay-predicts-impaired-exercise-capacity-in-patients-with-heart-failure-with-reduced-ejection-fraction
#8
Jakub Stępniewski, Grzegorz Kopeć, Wojciech Magoń, Piotr Podolec
BACKGROUND Atrioventricular conduction delay (AVCD) impairs left ventricular (LV) filling and consequently leads to a reduction of cardiac output. We hypothesized that in patients with severely depressed LV function and coexisting intraventricular conduction disturbances (IVCD), AVCD can affect exercise performance. Therefore, we evaluated the association of AVCD and exercise capacity in patients with heart failure (HFREF) and coexisting IVCD. MATERIAL AND METHODS We included patients with stable, chronic HFREF, LVEF <35%, sinus rhythm, and QRS ≥120 ms...
August 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28818204/geometry-as-a-confounder-when-assessing-ventricular-systolic-function-comparison-between-ejection-fraction-and-strain
#9
Thomas M Stokke, Nina E Hasselberg, Marit K Smedsrud, Sebastian I Sarvari, Kristina H Haugaa, Otto A Smiseth, Thor Edvardsen, Espen W Remme
BACKGROUND: Preserved left ventricular (LV) ejection fraction (EF) and reduced myocardial strain are reported in patients with hypertrophic cardiomyopathy, ischemic heart disease, diabetes mellitus, and more. OBJECTIVES: The authors performed a combined mathematical and echocardiographic study to understand the inconsistencies between EF and strains. METHODS: An analytical equation showing the relationship between EF and the 4 parameters, global longitudinal strain (GLS), global circumferential strain (GCS), wall thickness, and short-axis diameter, was derived from an elliptical LV model...
August 22, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28817494/nocturnal-hypertension-and-right-heart-remodeling
#10
Marijana Tadic, Cesare Cuspidi, Vera Celic, Biljana Pencic-Popovic, Giuseppe Mancia
BACKGROUND: We sought to investigate right ventricular (RV) and right atrial mechanics in patients with daytime, night-time and daytime-night-time hypertension. METHODS: This cross-sectional study included 256 untreated patients who underwent 24-h ambulatory blood pressure monitoring and complete echocardiographic examination including strain analysis. Night-time hypertension was defined as nocturnal SBP at least 120 mmHg and/or DBP at least 70 mmHg and daytime hypertension as SBP at least 135 mmHg and/or DBP at least 85 mmHg...
August 16, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28816526/echocardiographic-assessment-of-right-ventricle-dimensions-and-function-after-exposure-to-extreme-altitude-is-an-expedition-to-8000%C3%A2-m-hazardous-for-right-ventricular-function
#11
Marta Kurdziel, Jarosław Wasilewski, Karolina Gierszewska, Anna Kazik, Gracjan Pytel, Jacek Wacławski, Adam Krajewski, Anna Kurek, Lech Poloński, Mariusz Gąsior
Kurdziel, Marta, Jarosław Wasilewski, Karolina Gierszewska, Anna Kazik, Gracjan Pytel, Jacek Wacławski, Adam Krajewski, Anna Kurek, Lech Poloński, and Mariusz Gąsior. Echocardiographic assessment of right ventricle dimensions and function after exposure to extreme altitude: Is an expedition to 8000 m hazardous for right ventricular function? High Alt Med Biol 00:000-000, 2017.-Although the right ventricle (RV) is under great hypoxic stress at altitude, still little is known what happens to the RV after descent...
August 17, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28816145/strain-imaging-detects-dose-dependent-segmental-cardiac-dysfunction-in-the-acute-phase-after-breast-irradiation
#12
Queenie Lo, Leia Hee, Vikneswary Batumalai, Christine Allman, Peter MacDonald, Denise Lonergan, Geoff P Delaney, Liza Thomas
PURPOSE: We examined the utility of echocardiographic 2-dimensional speckle tracking strain imaging (SI) for the evaluation of segmental myocardial dysfunction before and after radiation therapy (RT) and the relationship to dose exposure. METHODS AND MATERIALS: We prospectively recruited 40 women with left-sided breast cancer, undergoing only adjuvant RT to the left chest. Comparisons of traditional echocardiographic parameters and SI parameters at baseline and 6 weeks after RT were analyzed...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28814710/left-univentricular-pacing-by-rate-adaptive-atrioventricular-delay-in-treatment-of-chronic-heart-failure
#13
Lulu Zhao, Ling Zhao, Lijin Pu, Baotong Hua, Yu Wang, Shumin Li, Qing Li, Tao Guo
BACKGROUND Cardiac resynchronization therapy (CRT) is efficacious in the treatment of chronic heart failure (CHF); however, because it is non-physiological, some patients are unresponsive. The present study used rate-adaptive atrioventricular delay (RAAVD) to track the physiological atrioventricular delay and investigated the effects of left univentricular pacing on CRT. MATERIAL AND METHODS Patients with CHF fulfilling the indication of CRT Class I were categorized into a left univentricular pacing by RAAVD group and a standard biventricular pacing group...
August 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28814446/communicating-echocardiography-results-to-patients-a-future-role-for-the-clinical-scientist
#14
EDITORIAL
Jenna Smith, Sarah Waters, Brian Campbell, John Chambers
Clinical scientists (cardiac physiologists, sonographers, echocardiographers) perform most of the echocardiograms requested in the USA, the UK, Australia and many countries in Europe. Clinical scientists do not usually communicate the results of echocardiography directly to their patients. Instead they produce a report to informthe requesting clinician who then talks to the patient. In contrast radiologists and radiographers may already communicate results directly to their patient following national professional guidelines (1) within local hospital protocols...
August 16, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28812383/evaluation-of-relationship-between-coronary-artery-status-evaluated-by-coronary-computed-tomography-angiography-and-development-of-cardiomyopathy-in-carbon-monoxide-poisoned-patients-with-myocardial-injury-a-prospective-observational-study
#15
Yong Sung Cha, Hyun Kim, Yoonsuk Lee, Woocheol Kwon, Jung-Woo Son, Hyun Youk, Hyung Il Kim, Oh Hyun Kim, Kyung Hye Park, Kyoung-Chul Cha, Kang Hyun Lee, Sung Oh Hwang
OBJECTIVES: Whether coronary artery changes are a main mechanism in the development of carbon monoxide (CO)-induced cardiomyopathy remains unknown. We investigated the effects of coronary artery stenosis on the presence or patterns of cardiomyopathy in CO-poisoned patients with myocardial injury defined as elevation of troponin I. MATERIALS AND METHODS: This prospective observational study collected data from consecutive patients who were diagnosed with CO poisoning and myocardial injury during the 24-month study period...
August 16, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28812247/towards-robot-assisted-echocardiographic-monitoring-in-catheterization-laboratories-usability-centered-manipulator-for-transesophageal-echocardiography
#16
Christina Pahl, Henning Ebelt, Mostafa Sayahkaraji, Eko Supriyanto, Amiliana Soesanto
This paper proposes a robotic Transesophageal Echocardiography (TOE) system concept for Catheterization Laboratories. Cardiovascular disease causes one third of all global mortality. TOE is utilized to assess cardiovascular structures and monitor cardiac function during diagnostic procedures and catheter-based structural interventions. However, the operation of TOE underlies various conditions that may cause a negative impact on performance, the health of the cardiac sonographer and patient safety. These factors have been conflated and evince the potential of robot-assisted TOE...
August 15, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28811765/regression-of-right-ventricular-systolic-pressure-after-successful-percutaneous-mitral-commissurotomy-in-patients-with-isolated-severe-mitral-stenosis
#17
Shah Zeb, Tariq Ashraf, Muhammad Hashim, Syed Nadeem Hassan Rizvi
OBJECTIVE: To know the regression of right ventricular pressure after successful percutaneous transluminalmitral commissurotomy (PTMC) in patients with severe isolated mitral stenosis. METHODS: This descriptive study was performed in inpatient and outpatient department of National Institute of Cardiovascular Disease from 1(st) February 2016 to 31(st) August 2016. Echocardiography of all patients with successful PTMC were recorded 24 hours and 06 months following PTMC to see for Regression of right ventricular pressure along with other baseline echocardiographic parameters...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811392/role-of-sympathetic-cotransmitter-galanin-on-autonomic-balance-in-heart-failure-an-active-player-or-a-bystander
#18
Demet Özkaramanlı Gür, Miray Sağbaş, Aydın Akyüz, Savaş Güzel, Şeref Alpsoy, Niyazi Güler
OBJECTIVE: Galanin, a cotransmitter similar to neuropeptide Y (NPY), aggravates autonomic imbalance in systolic heart failure (HF) by attenuating vagal tonus after burst sympathetic activity. In animal HF models, galanin antagonists have improved cardiac function. To determine whether galanin is a promising therapeutic target in HF, we studied its concentrations in HF patients and evaluated its correlation with NPY, markers of humoral activity such as pro-BNP and copeptin, and echocardiographic parameters of HF severity...
August 11, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28810592/protective-effect-and-mechanism-of-estrogen-receptor-%C3%AE-on-myocardial-infarction-in-mice
#19
Jun-Biao Zhang, Chang-Lei Guo
The protective effect and the mechanism of estrogen receptor β (ERβ) on myocardial infarction (MI) in mice were explored. A total of 12 female Tg-ERβ transgenic mice and 12 non-transgenic littermate control (NLC) wild-type C57 mice were used for the present study. Both transgenic and wild-type mice had similar baseline data such as age, sex, and weight. The mouse model of MI was established by coronary artery ligation method, and the cardiac structure and function changes of the mouse were observed by ultrasonic echocardiography on days 1, 3 and 7 after the operation...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808511/large-endocardial-rheumatoid-nodules-a-case-report-and-review-of-the-literature
#20
Allen Vantrease, Christopher Trabue, James Atkinson, Paul McNabb
Rheumatoid nodules occur frequently in patients with rheumatoid arthritis and are the most common cutaneous manifestation of the disease. Although uncommon, rheumatoid nodules may also occur on cardiac valves, where they may be large and clinically significant. They may embolize and cause stroke. They may cause regurgitant murmurs, or they may result in valvular destruction. Echocardiographically, they may mimic an atrial myxoma or appear as a vegetation. We present a patient with seronegative rheumatoid arthritis who developed an acute embolic stroke; he had peripheral stigmata of infective endocarditis on physical examination and echocardiography revealed a mitral valve vegetation...
July 2017: Journal of Community Hospital Internal Medicine Perspectives
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