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Journal of Echocardiography

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https://www.readbyqxmd.com/read/28501918/exercise-stress-echocardiography-in-hypertrophic-cardiomyopathy
#1
Kengo Suzuki, Yoshihiro J Akashi
In this review, we make a comprehensive summary of exercise stress echocardiography in hypertrophic cardiomyopathy (HCM) and practical tips used in our hospital. The main objective of performing exercise stress echocardiography in patients with HCM is to evaluate left ventricular outflow tract obstruction, mitral regurgitation, left ventricular asynergy, and diastolic function during exercise. There are limitations to the explanations that can be provided for exertional symptoms when resting echocardiography is performed in patients with HCM...
May 13, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28497431/effect-of-catheter-based-renal-denervation-on-left-ventricular-function-mass-and-un-twist-with-two-dimensional-speckle-tracking-echocardiography
#2
Lida Feyz, Bas M van Dalen, Marcel L Geleijnse, Nicolas M Van Mieghem, Ron T van Domburg, Joost Daemen
BACKGROUND: Speckle tracking echocardiography (STE) is an echocardiography modality that is able to measure left ventricular (LV) characteristics, including rotation, strain and strain rate. Strain measures myocardial fibre contraction and relaxation. This study aims to assess the effect of renal sympathetic denervation (RDN) on functional myocardial parameters, including STE, and to identify potential differences between responders and non-responders. METHODS: The study population consisted of 31 consecutive patients undergoing RDN in the context of treatment for resistant hypertension...
May 11, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28484959/prenatal-three-dimensional-color-doppler-imaging-showing-crossover-of-the-inflow-streams-of-two-ventricles-in-a-case-of-criss-cross-heart
#3
Aya Shirakawa, Takashi Kaji, Yasunobu Hayabuchi, Soichiro Nakayama, Kazuhisa Maeda, Minoru Irahara
No abstract text is available yet for this article.
May 8, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28466446/subacute-right-ventricular-pacemaker-lead-perforation-evaluation-by-echocardiography-and-cardiac-ct
#4
Reinier P J Boxma, Monique G M Kolff-Kamphuis, Ronald M M Gevers, Mohamed Boulaksil
No abstract text is available yet for this article.
May 2, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28271289/diastolic-stress-echocardiography
#5
REVIEW
Tsutomu Takagi
Evaluation of diastolic dysfunction and diagnosis of heart failure with preserved ejection fraction (HFpEF) by echocardiography are routinely performed at rest. However, many patients with modest HFpEF develop symptoms such as dyspnea only during exercise. Therefore, echocardiographic analysis at rest could be insufficient to identify these patients. Recent studies have demonstrated the utility of diastolic stress echocardiography to evaluate diastolic dysfunction during exercise. This review attempts to summarize and discuss current studies in diastolic stress echocardiography...
March 7, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28251472/visualization-of-isolated-partially-unroofed-coronary-sinus-by-intracardiac-echocardiography
#6
Naoko Sawada, Nobuhiko Ito, Osamu Harada
No abstract text is available yet for this article.
March 1, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28247237/prevalence-and-predictors-of-right-ventricular-diastolic-dysfunction-in-peripartum-cardiomyopathy
#7
K M Karaye, K Lindmark, M Y Henein
BACKGROUND: This study aimed to assess the prevalence of right ventricular diastolic dysfunction (RVDD) and its potential predictors in peripartum cardiomyopathy (PPCM) patients. METHODS: This was a cross-sectional study carried out in Nigeria. RVDD was defined and graded using Doppler filling and myocardial tissue Doppler velocities obtained at tricuspid annular level. RESULTS: Forty-three subjects with PPCM and mean age of 26.6 ± 7.0 years were recruited over 6 months...
February 28, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28205061/on-the-accuracy-of-intracardiac-flow-velocimetry-methods
#8
EDITORIAL
Arash Kheradvar
No abstract text is available yet for this article.
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28155065/left-atrial-strain-assessed-by-three-dimensional-speckle-tracking-echocardiography-predicts-atrial-fibrillation-recurrence-after-catheter-ablation-in-patients-with-paroxysmal-atrial-fibrillation
#9
Atsushi Mochizuki, Satoshi Yuda, Takefumi Fujito, Mina Kawamukai, Atsuko Muranaka, Daigo Nagahara, Shinya Shimoshige, Akiyoshi Hashimoto, Tetsuji Miura
BACKGROUND: Several studies have shown the utility of left atrial (LA) function determined by two-dimensional or three-dimensional speckle tracking echocardiography (2D- or 3D-STE) for identifying patients with paroxysmal atrial fibrillation (AF). However, whether 3D-STE is applicable for prediction of the recurrence of AF after catheter ablation (CA) remains unknown. We examined whether any 3D-STE parameters are better than 2D-STE parameters for the prediction of AF recurrence. METHODS: Forty-two patients with paroxysmal AF (58 ± 10 years old, 69% male) underwent 2D- and 3D-STE within 3 days before first-time CA...
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28116615/noninvasive-assessment-of-coronary-blood-flow-by-transthoracic-doppler-echocardiography-basic-to-practical-use-in-the-emergency-room
#10
Nozomi Watanabe
Echo Doppler is widely available in the clinical setting, and the feasibility of coronary flow detection in the left anterior descending coronary artery has been reported as >90% with the use of a high-frequency transducer. Coronary flow detection takes only a few minutes by skilled echocardiologists, and this noninvasive technique can provide useful physiological information in patients with various types of coronary artery disease. Coronary flow velocity reserve measurement by echo Doppler is a simple and easy technique...
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27873174/prognostic-value-of-exercise-left-ventricular-end-systolic-volume-index-in-patients-with-asymptomatic-aortic-regurgitation-an-exercise-echocardiography-study
#11
Yukio Sato, Masaki Izumo, Kengo Suzuki, Seisyou Kou, Kihei Yoneyama, Maya Tsukahara, Kanako Teramoto, Keisuke Minami, Shingo Kuwata, Ryo Kamijima, Kei Mizukoshi, Akio Hayashi, Sachihiko Nobuoka, Eiji Ohtaki, Tomoo Harada, Yoshihiro J Akashi
BACKGROUND: Surgical timing of chronic aortic regurgitation (AR) remains a matter of debate because of limited data. This study assessed the prognostic value of exercise echocardiography in asymptomatic AR. METHODS: This prospective study included 60 consecutive asymptomatic patients with isolated moderate or severe AR (mean regurgitant volume 56.7 ± 11.8 ml) and preserved ejection fraction who underwent exercise echocardiography. The clinical outcomes were defined by the presence of major adverse cardiovascular events (MACE) and the indication for aortic valve replacement (AVR) with class I or IIa classification in the current guidelines...
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27848215/accuracy-and-limitations-of-vector-flow-mapping-left-ventricular-phantom-validation-using-stereo-particle-image-velocimetory
#12
Rei Asami, Tomohiko Tanaka, Ken-Ichi Kawabata, Kunio Hashiba, Takashi Okada, Tomohide Nishiyama
BACKGROUND: The accuracy of vector flow mapping (VFM) was investigated in comparison to stereo particle image velocimetry (stereo-PIV) measurements using a left ventricular phantom. VFM is an echocardiographic approach to visualizing two-dimensional flow dynamics by estimating the azimuthal component of flow from the mass-conservation equation. VFM provides means of visualizing cardiac flow, but there has not been a study that compared the flow estimated by VFM to the flow data acquired by other methods...
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27744519/coronary-neovascularity-in-cystic-left-ventricular-thrombus-a-lacked-puzzle-piece
#13
Yoshiyuki Takase, Tomoo Nagai
No abstract text is available yet for this article.
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27734323/left-ventricular-systemic-air-embolus-following-caesarean-section
#14
Sadat Ali Edroos, Hossam El-Gendi, Debashis Roy
No abstract text is available yet for this article.
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27637900/a-case-of-myocardial-infarction-and-left-ventricular-pseudo-false-aneurysm-perforating-the-right-ventricle
#15
Ryuma Nakashima, Kazuto Yamaguchi, Hiroyuki Yoshitomi, Taiji Okada, Akihiro Endo, Kazuaki Tanabe
No abstract text is available yet for this article.
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27619219/resolution-of-mid-ventricular-thrombus-in-a-patient-with-heart-failure-and-high-hematocrit
#16
Ikuo Misumi, Takuya Kiyama, Ryusuke Tsunoda, Tsuyoshi Honda, Masanobu Ishii, Akihiro Dosaka
No abstract text is available yet for this article.
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27568205/direct-measurement-of-coronary-flow-during-a-vasospastic-angina-attack-by-transthoracic-doppler-echocardiography
#17
Shun Nishino, Nozomi Watanabe, Tatsuya Nakama, Tatsuro Takei, Keiichi Ashikaga, Nehiro Kuriyama, Yoshisato Shibata
No abstract text is available yet for this article.
June 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27817093/assessment-of-the-accuracy-of-common-clinical-thresholds-for-cardiac-morphology-and-function-by-transthoracic-echocardiography
#18
Jeffrey A Alexis, Benedict Costello, Leah M Iles, Andris H Ellims, James L Hare, Andrew J Taylor
BACKGROUND: We evaluated the ability of transthoracic echocardiography (TTE) to correctly identify abnormal left ventricular (LV) size, function, and mass when compared to cardiac magnetic resonance (CMR). Whilst numerous studies have compared TTE and CMR with respect to correlation between measurements and study reproducibility, few have employed categorical analysis relevant to clinical practice. METHODS: Two hundred and fifteen consecutive patients who underwent both TTE and CMR were evaluated for the presence of abnormal LV size, systolic function, and mass...
March 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27589871/three-dimensional-echocardiography-in-various-types-of-heart-disease-a-comparison-study-of-magnetic-resonance-imaging-and-64-slice-computed-tomography-in-a-real-world-population
#19
Angelo Squeri, Stefano Censi, Claudio Reverberi, Nicola Gaibazzi, Marco Baldelli, Simone Maurizio Binno, Enrico Properzi, Stefano Bosi
BACKGROUND: Accurate quantification of left ventricular (LV) volumes [end-diastolic volume (EDV) and end-systolic volume (ESV)] and ejection fraction (EF) is of critical importance. The development of real-time three-dimensional echocardiography (RT3DE) has shown better correlation than two-dimensional (2D) echocardiography with magnetic resonance imaging (MRI) measurements. The aim of our study was to assess the accuracy of RT3DE and 64-slice computed tomography (CT) in the evaluation of LV volumes and function using MRI as the reference standard in a real-world population with various types of heart disease with different chamber geometry...
March 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/27541494/a-case-of-prosthetic-aortic-valve-endocarditis-with-massive-vegetation-underestimated-by-conventional-two-dimensional-transesophageal-echocardiography-efficacy-of-three-dimensional-transesophageal-echocardiography
#20
Miho Mitsui, Akihisa Kataoka, Kumiko Konno, Takatoshi Kitazawa, Naoyuki Yokoyama, Tomoki Shimokawa, Ken Kozuma
No abstract text is available yet for this article.
March 2017: Journal of Echocardiography
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