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Intracardiac echocardiography

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https://www.readbyqxmd.com/read/29142012/a-transcatheter-interatrial-shunt-device-for-the-treatment-of-heart-failure-with-preserved-ejection-fraction-reduce-lap-hf-i-a-phase-2-randomized-sham-controlled-trial
#1
Ted Feldman, Laura Mauri, Rami Kahwash, Sheldon Litwin, Mark J Ricciardi, Pim van der Harst, Martin Penicka, Peter S Fail, David M Kaye, Mark C Petrie, Anupam Basuray, Scott L Hummel, Rhondalyn Forde-McLean, Christopher D Nielsen, Scott Lilly, Joseph M Massaro, Daniel Burkhoff, Sanjiv J Shah
Background -In non-randomized, open-label studies, a transcatheter interatrial shunt device (IASD, Corvia Medical) was associated with lower pulmonary capillary wedge pressure (PCWP), less symptoms, and greater quality of life and exercise capacity in patients with heart failure (HF) and mid-range or preserved ejection fraction (EF ≥ 40%). We conducted the first randomized, sham-controlled trial to evaluate the IASD in HF with EF ≥ 40%. Methods -REDUCE LAP-HF I was a phase 2, randomized, parallel-group, blinded multicenter trial in patients with New York Heart Association (NYHA) class III or ambulatory class IV HF, EF ≥ 40%, exercise PCWP ≥ 25 mmHg, and PCWP-right atrial pressure gradient ≥ 5 mmHg...
November 15, 2017: Circulation
https://www.readbyqxmd.com/read/29097107/echocardiographic-imaging-options-in-ovine-research-subjects
#2
M Colpitts, M Malinowski, R Phillion, R Coleman, L Mitchell, A Malone, L Eberhart, R Sanders, D Langholz
OBJECTIVES: To determine the feasibility of acquiring quality transesophageal (TEE), epicardial (EE), and intracardiac (ICE) echocardiographic images in ovine subjects and to discuss the merits of each technique with a focus on ICE image acquisition. ANIMALS: Eleven male castrated Dorset adult sheep. METHODS: Transesophageal echocardiography was performed under general anesthesia. Epicardial echocardiography was performed as part of an open chest (thoracotomy or sternotomy) experiment...
October 30, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29074049/the-dynamic-cardiac-biosimulator-a-method-for-training-physicians-in-beating-heart-mitral-valve-repair-procedures
#3
Alberto M Leopaldi, Krzysztof Wrobel, Giovanni Speziali, Sjoerd van Tuijl, Agne Drasutiene, W Randolph Chitwood
OBJECTIVE: Previously, cardiac surgeons and cardiologists learned to operate new clinical devices for the first time in the operating room or catheterization laboratory. We describe a biosimulator that recapitulates normal heart valve physiology with associated real-time hemodynamic performance. METHODS: To highlight the advantages of this simulation platform, transventricular extruded polytetrafluoroethylene artificial chordae were attached to repair flail or prolapsing mitral valve leaflets...
September 18, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29067106/role-of-blocking-adam10-hydrolysis-site-on-n-cadherin-by-single-chain-antibody-in-ventricular-remodeling
#4
Xiaoou Li, Wei Huang, Bing He, Lirong Zhou, Xiaogang Huang, Baozhen Yao
The present study aimed to investigate the roles of the hydrolytic process of N-cadherin by A disintegrin and metalloproteases 10 (ADAM10) in sustaining myocardial structure and integrity, and discuss the mechanisms of ventricular remodeling in dilated cardiomyopathy (DCM). Single chain variable fragment antibody (ScFv) with the ability to specifically block the ADAM10 hydrolysis site of N-cadherin was designed and constructed. Western blot analysis and flow cytometry were used to detect the expression of N-cadherin and its C-terminal fragment 1 (CTF1) on cardiomyocytes, and cells were also subjected to a cell adhesion assay...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29062696/atrial-fibrillation-ablation-with-persistent-left-superior-vena-cava-detected-during-intracardiac-echocardiography
#5
Victor A Abrich, Jeffrey Munro, Komandoor Srivathsan
No abstract text is available yet for this article.
October 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/29025545/constrictive-pericarditis
#6
REVIEW
Terrence D Welch, Jae K Oh
Constrictive pericarditis is a potentially treatable cause of diastolic heart failure that arises because a diseased, inelastic pericardium restricts ventricular diastolic expansion. Affected patients present with heart failure with predominant right-sided symptoms and signs. The key to diagnosis is identification of the unique hemodynamic properties associated with constriction: dissociation of intrathoracic and intracardiac pressures and enhanced ventricular interaction. Comprehensive echocardiography with Doppler imaging is useful, but invasive hemodynamic assessment and cross-sectional imaging may be required for confirmation...
November 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/29025544/cardiac-tamponade
#7
REVIEW
Christopher Appleton, Linda Gillam, Konstantinos Koulogiannis
Cardiac tamponade is caused by an abnormal increase in fluid accumulation in the pericardial sac, which, by raising intracardiac pressures, impedes normal cardiac filling and reduces cardiac output, sometimes dramatically so. This article outlines the pathophysiology, clinical features, and treatment of this important clinical condition highlighting the important role played by echocardiography in diagnosis and management.
November 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/29024359/paravalvular-leak-closure-under-intracardiac-echocardiographic-guidance
#8
Neil Ruparelia, Jacob Cao, James D Newton, Neil Wilson, Matthew J Daniels, Oliver J Ormerod
OBJECTIVES: The objective of this study was to determine the safety and efficacy of intracardiac echocardiography (ICE) to guide percutaneous paravalvular leak (PVL) closure. BACKGROUND: PVL following surgical valve replacement occurs in 2%-15% of patients. Percutaneous treatment is an accepted management strategy in patients deemed to be too high risk for redo surgery. This is most commonly performed with transesophageal (TOE) guidance requiring general anesthesia that both potentially further increase the risk of intervention...
October 10, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29021847/a-new-mapping-method-to-estimate-exit-sites-of-ventricular-arrhythmias-using-intracardiac-echocardiography-and-m-mode-for-catheter-ablation
#9
Osamu Inaba, Junichi Nitta, Syunsuke Kuroda, Masahiro Sekigawa, Masahito Suzuki, Yukihiro Inamura, Akira Satoh, Mitsuaki Isobe, Kenzo Hirao
BACKGROUND: Catheter ablation of premature ventricular complexes (PVCs) has been used as a curative therapy in many cases. Intracardiac ultrasound with a magnetic sensor probe has recently become available for catheter ablation. In this study, we assessed a new mapping method, contraction mapping, for determining the optimal ablation sites using intracardiac ultrasound and M-mode. This study sought to assess the accuracy of the new mapping method using intracardiac echocardiography. METHODS: Eighteen patients (10 males and eight females; mean age, 63±12 years) with 104 mapping points diagnosed as idiopathic PVCs were included in this study...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29018024/circulatory-dynamics-during-pulmonary-vein-isolation-using-the-second-generation-cryoballoon
#10
Takatsugu Kajiyama, Shinsuke Miyazaki, Tomonori Watanabe, Kazuya Yamao, Shigeki Kusa, Miyako Igarashi, Hiroaki Nakamura, Hitoshi Hachiya, Yoshito Iesaka
BACKGROUND: Circulatory dynamics change during pulmonary vein (PV) isolation using cryoballoons. This study sought to investigate the circulatory dynamics during cryoballoon-based PV isolation procedures and the contributing factors. METHODS AND RESULTS: This study retrospectively included 35 atrial fibrillation patients who underwent PV isolation with 28-mm second-generation cryoballoons and single 3-minute freeze techniques. Blood pressures were continuously monitored via arterial lines...
October 10, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28987478/clinical-impact-of-intrapulmonary-vascular-dilatation-in-liver-transplant-candidates
#11
Hilary M DuBrock, Michael J Krowka, Kimberly A Forde, Karen Krok, Mamta Patel, Tiffany Sharkoski, Michael Sprys, Grace Lin, Jae K Oh, Carl D Mottram, Paul D Scanlon, Michael B Fallon, Steven M Kawut
BACKGROUND: Intrapulmonary vascular dilatations (IPVD) are frequently detected in patients with liver disease by the delayed appearance of microbubbles on contrast-enhanced echocardiography. IPVD with an elevated alveolar-arterial (A-a) gradient define hepatopulmonary syndrome, however the importance of IPVD in the absence of abnormal gas exchange is unknown. We aimed to determine the clinical impact of IPVD in patients with liver disease. METHODS: We performed a cross-sectional study within the Pulmonary Vascular Complications of Liver Disease (PVCLD2) Study, a multicenter prospective cohort study of patients being evaluated for liver transplantation...
October 5, 2017: Chest
https://www.readbyqxmd.com/read/28960632/zero-fluoroscopy-cryothermal-ablation-of-atrioventricular-nodal-reentry-tachycardia-guided-by-endovascular-and-endocardial-catheter-visualization-using-intracardiac-echocardiography-ice-ice-trial
#12
Blerim Luani, Bernhard Zrenner, Maksim Basho, Conrad Genz, Thomas Rauwolf, Ivan Tanev, Alexander Schmeisser, Rüdiger C Braun-Dullaeus
INTRODUCTION: Stochastic damage of the ionizing radiation to both patients and medical staff is a drawback of fluoroscopic guidance during catheter ablation of cardiac arrhythmias. Therefore, emerging zero-fluoroscopy catheter-guidance techniques are of great interest. METHODS AND RESULTS: We investigated in a prospective pilot study the feasibility and safety of the cryothermal (CA) slow-pathway ablation in patients with symptomatic atrioventricular-nodal-reentry-tachycardia (AVNRT) using solely intracardiac echocardiography (ICE) for endovascular and endocardial catheter visualization...
September 27, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28950366/clinical-practice-of-contrast-echocardiography-recommendation-by-the-european-association-of-cardiovascular-imaging-eacvi-2017
#13
Roxy Senior, Harald Becher, Mark Monaghan, Luciano Agati, Jose Zamorano, Jean Louis Vanoverschelde, Petros Nihoyannopoulos, Thor Edvardsen, Patrizio Lancellotti
Contrast echocardiography is widely used in cardiology. It is applied to improve image quality, reader confidence and reproducibility both for assessing left ventricular (LV) structure and function at rest and for assessing global and regional function in stress echocardiography. The use of contrast in echocardiography has now extended beyond cardiac structure and function assessment to evaluation of perfusion both of the myocardium and of the intracardiac structures. Safety of contrast agents have now been addressed in large patient population and these studies clearly established its excellent safety profile...
November 1, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28904808/intracardiac-fistula-an-unusual-complication-of-catheter-related-blood-stream-infection
#14
Abhilash Koratala, Hussain Aboud, Robert Gibson, Karen K Hamilton
In end stage renal disease patients on dialysis, the use of catheter as a vascular access is associated with a significant risk of sepsis compared to an arterio-venous fistula. Our case emphasizes the importance of having high index of suspicion for unusual complications in patients presenting with possible catheter-related blood stream infection and early use of complementary tools such as trans-oesophageal echocardiography whenever applicable.
September 2017: JRSM Open
https://www.readbyqxmd.com/read/28895163/off-the-pedal-fluoroless-transseptal-puncture-in-pediatric-supraventricular-tachycardia-ablation
#15
Bradley C Clark, Kohei Sumihara, Charles I Berul, Jeffrey P Moak
BACKGROUND: Fluoroless transseptal (TS) puncture may represent the final step toward elimination of fluoroscopy in pediatric supraventricular tachycardia ablation in normal hearts. We aimed to demonstrate the safety and feasibility of fluoroless TS puncture in pediatric patients and compare procedural timing with the fluoroscopic approach. METHODS: We performed a retrospective cohort analysis of all TS procedures performed without fluoroscopy at our institution; fluoroless TS procedures were performed under intracardiac echocardiography (ICE) guidance after the creation of a 3D electroanatomic map and identification of fossa ovalis (FO) on 3D map...
September 12, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28887807/feasibility-of-multiplane-microtransoesophageal-echocardiographic-guidance-in-structural-heart-disease-transcatheter-interventions-in-adults
#16
V J Nijenhuis, A Alipour, N C Wunderlich, B J W M Rensing, G Gijsbers, J M Ten Berg, M J Suttorp, L V A Boersma, J A S van der Heyden, M J Swaans
INTRODUCTION: Structural heart interventions are guided by transoesophageal or intracardiac echocardiography (TEE/ICE). MicroTEE, developed for paediatric purposes, is smaller and therefore less invasive and traumatic, avoiding the need for general anaesthesia. We aimed to show feasibility of procedural guidance by comparing image quality of microTEE with standard TEE and ICE during adult transcatheter interventions, and assess the accuracy in obtaining left atrial appendage (LAA) measurements between the microTEE probe and standard TEE...
September 8, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28886842/imaging-assessment-of-the-interatrial-septum-for-transcatheter-atrial-septal-defect-and-patent-foramen-ovale-closure
#17
REVIEW
Mary Z Bechis, David S Rubenson, Matthew J Price
Transcatheter closure of atrial septal defects and patent foramen ovale has become increasingly common with advances in device and imaging technology. The percutaneous approach is now the preferred method of closure when anatomically suitable. Two-dimensional and 3-dimensional echocardiography determines anatomic suitability by characterizing the interatrial defect and its surrounding structures, and is critical for intraprocedural guidance and postprocedure follow-up. This article provides an overview of interatrial anatomy as it pertains to interventional considerations and discusses the transthoracic, transesophageal, and intracardiac echocardiographic modalities used for periprocedural and intraprocedural imaging of the interatrial septum...
October 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28884872/the-tip-of-the-muscle-is-a-dominant-location-of-ventricular-ectopy-originating-from-papillary-muscles-in-the-left-ventricle
#18
Petr Peichl, Jakub Baran, Dan Wichterle, Robert Čihák, Tomáš Skála, Bashar Aldhoon, Matevž Jan, Bor Antolič, Josef Kautzner
INTRODUCTION: Frequent ventricular premature complexes (VPCs) may cause symptoms and/or lead to deterioration of LV systolic function. Although frequent VPCs may be abolished by catheter ablation, it may be challenging in case of their origin from the LV papillary muscles (PMs). Our collaborative study aimed to analyze in detail the site of origin and the outcome of ablation. METHODS: Consecutive 34 patients (males: 68%; aged 62 ± 12 years; LV ejection fraction: 50 ± 9%) undergoing catheter ablation of VPCs originating from PMs were included...
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28879526/intracardiac-echocardiography-for-structural-heart-and-electrophysiological-interventions
#19
REVIEW
Craig Basman, Yuvrajsinh J Parmar, Itzhak Kronzon
PURPOSE OF REVIEW: With an increasing number of interventional procedures performed for structural heart disease and cardiac arrhythmias each year, echocardiographic guidance is necessary for safe and efficient results. The purpose of this review article is to overview the principles of intracardiac echocardiography (ICE) and describes the peri-interventional role of ICE in a variety of structural heart disease and electrophysiological interventions. RECENT FINDINGS: Both transthoracic (TTE) and transesophageal echocardiography have limitations...
September 6, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28878615/clinically-silent-intracardiac-metastasis-with-extremely-poor-prognosis-in-a-patient-with-hepatocellular-carcinoma
#20
Mashal Salehi, The Yee, Eric Alatevi, Yamin Thein
Intracavitary cardiac extension remains an unusual site of extrahepatic metastasis in patients with hepatocellular carcinoma. While patients can present with signs and symptoms suggestive of right-sided heart failure, it may be totally asymptomatic, which is very rare with only a few cases reported so far. Also, cardiac metastasis is of great prognostic importance as patients with intracardiac metastasis can have an extremely poor prognosis. Here, we present the case of a 52-year-old male patient with advanced hepatocellular carcinoma, with an incidentally found tumor thrombus extending from the inferior vena cava to the right atrium, protruding through the tricuspid valve into the right ventricle, on routine echocardiography...
May 2017: Case Reports in Gastroenterology
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