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JACC. Cardiovascular Imaging

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https://www.readbyqxmd.com/read/28017383/routine-clinical-quantitative-rest-stress-myocardial-perfusion-for-managing-coronary-artery-disease-clinical-relevance-of-test-retest-variability
#1
Danai Kitkungvan, Nils P Johnson, Amanda E Roby, Monika B Patel, Richard Kirkeeide, K Lance Gould
OBJECTIVES: Positron emission tomography (PET) quantifies stress myocardial perfusion (in cc/min/g) and coronary flow reserve to guide noninvasively the management of coronary artery disease. This study determined their test-retest precision within minutes and daily biological variability essential for bounding clinical decision-making or risk stratification based on low flow ischemic thresholds or follow-up changes. BACKGROUND: Randomized trials of fractional flow reserve-guided percutaneous coronary interventions established an objective, quantitative, outcomes-driven standard of physiological stenosis severity...
December 21, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017380/understanding-the-role-of-the-la-in-functional-responses-to-heart%C3%A2-failure
#2
EDITORIAL
Thomas H Marwick, David Kaye
No abstract text is available yet for this article.
December 13, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017395/left-atrial-function-dynamics-during%C3%A2-exercise-in-heart-failure-pathophysiological-implications-on-the-right-heart-and-exercise-ventilation-inefficiency
#3
Tadafumi Sugimoto, Francesco Bandera, Greta Generati, Eleonora Alfonzetti, Claudio Bussadori, Marco Guazzi
OBJECTIVES: The hypothesis of this study was that left atrial (LA) dynamic impairment during exercise may trigger right ventricular (RV)-to-pulmonary circulation (PC) uncoupling and ventilation inefficiency. BACKGROUND: LA function plays a key role in the hemodynamics of heart failure with reduced ejection fraction (HFrEF) and heart failure with preserved ejection fraction (HFpEF). Extensive investigation of LA dynamics, however, has been performed exclusively at rest...
December 12, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017394/fate-of-nonculprit-plaques-in-patients-with-stemi-undergoing-primary-pci-followed-by-statin-therapy-a-serial-optical-coherence-tomography-analysis-from-the-octavia-study
#4
LETTER
Daisuke Nakamura, Kunihiro Shimamura, Davide Capodanno, Guilherme F Attizzani, Massimo Fineschi, Giuseppe Musumeci, Ugo Limbruno, Vasile Sirbu, Micol Coccato, Leonardo De Luca, Hiram G Bezerra, Francesco Saia, Giulio Guagliumi
No abstract text is available yet for this article.
December 12, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017393/long-term-outcome-after-crt-in-the-presence-of-mechanical-dyssynchrony-seen-with-chronic-rv-pacing-or-intrinsic-lbbb
#5
Ivan Stankovic, Christian Prinz, Agnieszka Ciarka, Ana Maria Daraban, Yujing Mo, Marit Aarones, Mariola Szulik, Stefan Winter, Aleksandar N Neskovic, Tomasz Kukulski, Svend Aakhus, Rik Willems, Wolfgang Fehske, Martin Penicka, Lothar Faber, Jens-Uwe Voigt
OBJECTIVES: The aim of this study was to compare the volumetric response and the long-term survival after cardiac resynchronization therapy (CRT) in patients with intrinsic left bundle branch block (LBBB) versus chronic right ventricular pacing (RVP) with respect to the presence of mechanical dyssynchrony (MD). BACKGROUND: Chronic RVP induces an iatrogenic LBBB and asynchronous left ventricular contraction that is potentially reversible by upgrading to CRT. METHODS: A total of 914 patients eligible for CRT (117 with conventional pacemakers and 797 with intrinsic LBBB) were included in the study...
December 9, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017715/midterm-sapien-transcatheter-valve%C3%A2-durability-ready-for-prime-time-or-waiting-to-fail
#6
EDITORIAL
Patricia A Pellikka, Jeremy Thaden
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017714/long-term-valve-performance-of-tavr-and-savr-a-report-from-the-partner-i-trial
#7
Melissa A Daubert, Neil J Weissman, Rebecca T Hahn, Philippe Pibarot, Rupa Parvataneni, Michael J Mack, Lars G Svensson, Deepika Gopal, Samir Kapadia, Robert J Siegel, Susheel K Kodali, Wilson Y Szeto, Raj Makkar, Martin B Leon, Pamela S Douglas
OBJECTIVES: The aim of this study was to evaluate the long-term performance of transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) through longitudinal echocardiographic analysis. BACKGROUND: The long-term performance of the SAPIEN TAVR is not well-described. Therefore, we examined the hemodynamic and valvular profile of the SAPIEN TAVR over 5 years. METHODS: All patients receiving TAVR or SAVR with first post-implant (FPI) and 5-year echoes were analyzed for aortic valve (AV) peak velocity, AV mean gradient, AV area, peak left ventricular (LV) outflow tract and in-stent velocities, Doppler velocity index, aortic regurgitation (AR), LV mass index, stroke volume index, and cardiac index...
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017713/when-should-we-go-with-halt
#8
EDITORIAL
Jonathan L Halperin, David Zagha
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017712/incidence-predictors-and-mid-term-outcomes-of-possible-leaflet-thrombosis-after-tavr
#9
Ryo Yanagisawa, Kentaro Hayashida, Yoshitake Yamada, Makoto Tanaka, Fumiaki Yashima, Taku Inohara, Takahide Arai, Takashi Kawakami, Yuichiro Maekawa, Hikaru Tsuruta, Yuji Itabashi, Mitsushige Murata, Motoaki Sano, Kazuma Okamoto, Akihiro Yoshitake, Hideyuki Shimizu, Masahiro Jinzaki, Keiichi Fukuda
OBJECTIVES: This study sought to clarify the incidence and predictors of hypoattenuated leaflet thickening (HALT) and mid-term outcomes after transcatheter aortic valve replacement. BACKGROUND: HALT detected on multidetector computed tomography (MDCT) scanning raised concerns about possible subclinical leaflet thrombosis. METHODS: We studied 70 of 100 consecutive patients from a single-center registry who underwent implantation with the Edwards SAPIEN-XT device...
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017396/the-pickelhaube-sign-novel-echocardiographic-risk-marker-for-malignant-mitral%C3%A2-valve-prolapse-syndrome
#10
LETTER
Lakshmi Muthukumar, Faraaz Rahman, M Fuad Jan, Armaan Shaikh, Lindsey Kalvin, Anwer Dhala, Arshad Jahangir, A Jamil Tajik
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017392/myocardial-fibrosis-in-aortic-stenosis
#11
EDITORIAL
Stefan Neubauer, Sacha Bull
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017391/clinical-pet-flow-reserve-imaging-is-there-precision-to-treat-patients-or-populations
#12
EDITORIAL
Rob S B Beanlands, Aun-Yeong Chong, Robert A deKemp
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017390/rocking-and-flashing-with-rv-pacing-implications-for-resynchronization-therapy
#13
EDITORIAL
John Gorcsan, Joost Lumens
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017389/la-strain-categorization-of-lv-diastolic%C3%A2-dysfunction
#14
Amita Singh, Karima Addetia, Francesco Maffessanti, Victor Mor-Avi, Roberto M Lang
OBJECTIVES: This study sought to observe the relationship between left atrial (LA) strain and left ventricular diastolic function and determine whether LA strain could be used to detect diastolic dysfunction (DD) and classify its degree when present. BACKGROUND: The assessment of diastolic function is complex and multiparametric because most conventional parameters do not follow the progression of DD. Strain imaging is an emerging index of LA function, with recent data demonstrating that LA strain is diminished in diastolic heart failure...
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017388/a-new-dimension-in-prediction-of-cardiovascular-outcomes
#15
EDITORIAL
Federico M Asch
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017387/la-phasic-volumes-and-reservoir%C3%A2-function%C3%A2-in-the-elderly-by%C3%A2-real-time-3-d-echocardiography-normal-values-prognostic-significance-and-clinical-correlates
#16
Cesare Russo, Zhezhen Jin, Shunichi Homma, Tatjana Rundek, Mitchell S V Elkind, Ralph L Sacco, Marco R Di Tullio
OBJECTIVES: This study sought to assess the prevalence and prognostic value of abnormalities in left atrial (LA) phasic volumes and reservoir function in a community cohort. BACKGROUND: LA enlargement is associated with adverse cardiovascular outcomes. Real-time 3-dimensional (RT3D) echocardiography allows assessment of LA phasic volumes and reservoir function. However, there is a paucity of data regarding normal values, clinical correlates, and prognostic value of RT3D echocardiography-derived LA phasic volumes and reservoir function, especially in the elderly, a subgroup at high risk for cardiovascular events...
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017386/association-of-patient-beliefs-and-preferences-with-subsequent-testing-after-initial-evaluation-for-ischemic-heart-disease
#17
LETTER
Joseph A Ladapo, John M Pfeifer, Alana A Choy-Shan, James M Pitcavage, Brent A Williams
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017385/usefulness-of-late-iodine-enhancement-on-spectral-ct-in-acute-myocarditis
#18
LETTER
Claire Bouleti, Guillaume Baudry, Bernard Iung, Dimitri Arangalage, Jérémie Abtan, Gregory Ducrocq, Philippe-Gabriel Steg, Alec Vahanian, Marie-Cécile Henry-Feugeas, Nicoletta Pasi, Sylvie Chillon, Francesca Pitocco, Jean-Pierre Laissy, Phalla Ou
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017384/myocardial-fibrosis-and-cardiac-decompensation-in-aortic-stenosis
#19
Calvin W L Chin, Russell J Everett, Jacek Kwiecinski, Alex T Vesey, Emily Yeung, Gavin Esson, William Jenkins, Maria Koo, Saeed Mirsadraee, Audrey C White, Alan G Japp, Sanjay K Prasad, Scott Semple, David E Newby, Marc R Dweck
OBJECTIVES: Cardiac magnetic resonance (CMR) was used to investigate the extracellular compartment and myocardial fibrosis in patients with aortic stenosis, as well as their association with other measures of left ventricular decompensation and mortality. BACKGROUND: Progressive myocardial fibrosis drives the transition from hypertrophy to heart failure in aortic stenosis. Diffuse fibrosis is associated with extracellular volume expansion that is detectable by T1 mapping, whereas late gadolinium enhancement (LGE) detects replacement fibrosis...
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28017382/la-strain-when-ejection-fraction-is-preserved-a-new-measure-of-diastolic-function
#20
EDITORIAL
Scott D Solomon, Tor Biering-Sørensen
No abstract text is available yet for this article.
December 8, 2016: JACC. Cardiovascular Imaging
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