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https://www.readbyqxmd.com/read/28227689/robotic-system-with-multiplex-power-transmission-for-mri-guided-percutaneous-interventions
#1
Yang Wang, Sungmin Kim, Everette C Burdette, Peter Kazanzides, Iulian Iordachita, Yang Wang, Sungmin Kim, Everette C Burdette, Peter Kazanzides, Iulian Iordachita, Sungmin Kim, Peter Kazanzides, Everette C Burdette, Iulian Iordachita, Yang Wang
In minimally invasive prostate percutaneous interventions, Magnetic Resonance Imaging (MRI) compatible robotic assistive systems developed over the years tend to have multiple degrees of freedom (DOF) to accomplish complex surgical tasks. This paper presents a novel design of an MRI-compatible transmission that allows one driving motor to control a multiplexed DOF robot system. The transmission could reduce the number of motors in the system, while maintaining the functionality of the system, by controlling each motion sequentially rather than simultaneously...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225634/journal-club-ultrasound-guided-breast-interventions-low-incidence-of-infectious-complications-with-use-of-an-uncovered-probe
#2
Chris Reisenauer, Robert T Fazzio, Gina Hesley
OBJECTIVE: The purpose of this study was to determine the incidence of infectious complications after ultrasound-guided breast interventions performed with an intermediate-level disinfection protocol without an ultrasound probe cover. MATERIALS AND METHODS: Two independent institutional databases were searched to identify breast infections in patients who underwent ultrasound-guided interventions between January 2005 and July 2013. The departments of radiology and infectious diseases independently maintained these databases...
February 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28219553/extensive-chest-wall-destruction-secondary-to%C3%A2-a%C3%A2-large-ventricle-pseudoaneurysm-a-surgical%C3%A2-challenge
#3
Francisco Javier Irazusta, Ulises Ramirez, Juan Caro-Codon, Elena Refoyo, Diego Garrido, Inmaculada Pinilla, Jose Maria Mesa, Jose Luis Lopez-Sendon
Left ventricular pseudoaneurysms have become a rare complication of acute myocardial infarction, occurring in approximately 2% of cases and even less frequently when primary percutaneous intervention can be performed. Regardless of treatment strategy, left ventricle pseudoaneurysms are associated with a high mortality rate. We report on the extremely rare occurrence of a patient surviving two episodes of free wall rupture associated with extensive chest wall destruction and secondary traumatic rib fractures...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28197285/percutaneous-intervention-of-a-persistent-left-superior-vena-cava-draining-into-left-pulmonary-vein-and-coarctation-of-the-aorta
#4
Saad Al Bugami, Mohammed Althobaiti, Tarek Momenah, Jamilah Alrahimi, Wael Al Kashkari
We describe a 54-year-old male with history of type II DM, hypertension and dyslipidemia during admission for bronchopneumonia discovered to have coarctation of the aorta and a persistent left superior vena cava (PLSVC) draining into the left atrium through the left superior pulmonary vein. The latter was thought to contribute to a transient ischemic attack and an episode of chest pain resulting in ST-segment elevation in the inferior leads. He was treated with coarctation stenting and percutaneous exclusion of the PLSVC with a vascular plug...
August 2016: Cardiology Research
https://www.readbyqxmd.com/read/28191713/tissue-characterization-and-phenotype-classification-in-patients-presenting-with-acute-myocardial-infarction-insights-from-the-iwonder-study
#5
Cristiano F Souza, Akiko Maehara, Gary S Mintz, Mitsuaki Matsumura, Claudia M R Alves, Antonio Carlos Carvalho, Adriano Caixeta
OBJECTIVES: We sought to assess a new modality of radiofrequency intravascular ultrasound (IVUS) called iMAP-IVUS (Boston Scientific, Santa Clara, California) during the evaluation of patients presenting with high-risk acute coronary syndromes. BACKGROUND: There are limited data on plaque tissue characterization and phenotype classification using iMAP-IVUS. METHODS: In the iWonder study patients presenting with ST-elevation myocardial infarction (STEMI) or non-STEMI underwent three-vessel grayscale IVUS and iMAP-IVUS tissue characterization prior to percutaneous intervention...
February 13, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28184976/decreased-diastolic-ventricular-kinetic-energy-in-young-patients-with-fontan-circulation-demonstrated-by-four-dimensional-cardiac-magnetic-resonance-imaging
#6
Pia Sjöberg, Einar Heiberg, Pär Wingren, Jens Ramgren Johansson, Torsten Malm, Håkan Arheden, Petru Liuba, Marcus Carlsson
Four-dimensional (4D) flow magnetic resonance imaging (MRI) enables quantification of kinetic energy (KE) in intraventricular blood flow. This provides a novel way to understand the cardiovascular physiology of the Fontan circulation. In this study, we aimed to quantify the KE in functional single ventricles. 4D flow MRI was acquired in eleven patients with Fontan circulation (median age 12 years, range 3-29) and eight healthy volunteers (median age 26 years, range 23-36). Follow-up MRI after surgical or percutaneous intervention was performed in 3 patients...
February 10, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28179971/atypical-double-right-coronary-artery-presenting-with-acute-coronary-syndrome-cardiogenic-shock-and-complete-heart-block
#7
Santosh Kumar Sinha, Shravan Singh, Vikash Chaturvedi, Puneet Agrawal, Mahmadula Razi, Anupam Mahrotra, Vikas Mishra, Mukesh Kumar, Nasar Abdali, Dibbendhu Khanra, Ramesh Thakur, Chandra Mohan Varma, Umeshwar Pandey
Double right coronary artery (RCA) is an extremely rare coronary artery anomaly. We here report an atherosclerotic double RCA which appeared after primary percutaneous intervention performed to treat a 34-year-old male presenting with acute inferior myocardial infarction, cardiogenic shock and complete heart block. This is an unusual case as double RCA had been hidden by total atherosclerotic occlusion of the proximal part of the RCA and complete restoration of patency led complete heart block back to normal sinus rhythm...
March 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28169139/comparative-analysis-of-intranodal-lymphangiography-with-percutaneous-intervention-for-postsurgical-chylous-effusions
#8
Michael Yannes, Donghoon Shin, Kevin McCluskey, Rakesh Varma, Ernesto Santos
PURPOSE: To evaluate clinical success and time to resolution of intranodal lymphangiography (INL) alone or with thoracic duct embolization (TDE) or thoracic duct disruption (TDD) based on initial effusion volume for postsurgical chylothorax. MATERIALS AND METHODS: Retrospective review was performed of 57 patients (mean age 63 y; 65% male) undergoing INL alone or in conjunction with other percutaneous techniques for postsurgical chylous effusions. INL alone was performed when chylothorax output was ≤ 500 mL/d and no leak was identified during fluoroscopy...
February 3, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28167460/optimal-approach-to-percutaneous-intervention-for-cto-in-2017-a-hybrid-strategy-is-now-the-preferred-choice
#9
Simon J Walsh, Colm G Hanratty, James C Spratt
No abstract text is available yet for this article.
February 3, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28167459/optimal-approach-to-percutaneous-intervention-for-cto-in-2017-the-traditional-strategy-is-still-the-best
#10
Gerald S Werner
No abstract text is available yet for this article.
February 3, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28164311/flow-and-diameter-changes-of-forearm-arteries-during-temporary-unilateral-reciprocal-occlusion-a-prospective-observational-study
#11
Hatice Kaplanoglu, Osman Beton
PURPOSE: Transradial and transulnar artery approaches are commonly used for percutaneous interventions, with considerably low risk of developing hand ischemia, for reasons that have not been fully understood. The aim of this study was to evaluate the changes in the diameter, peak systolic flow velocity (PSV), and volume flow (VF) of the radial (RA) and ulnar artery (UA) during unilateral reciprocal temporary occlusion. METHODS: A total of 204 extremity arteries of 102 consecutive patients were evaluated using Doppler ultrasonography...
February 6, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28164014/cardiovascular-burden-and-percutaneous-interventions-in-russian-federation-systematic-epidemiological-update
#12
REVIEW
Alexander N Kharlamov
The situation with cardiovascular (CV) burden in Russian population is alerting, and becomes of interest due to high CV mortality, and shorter lifespan if compare with the Western society amid the absence of the established monitoring or screening system for major CV risk factors. The purpose of this systematic epidemiological update was to explore CV burden in Russia. The study represents pooled results with a systematic epidemiological review of the national mass screening, selected randomized clinical trials and statistical datasets of the national public health CV institutions exploring the trends of the CV burden in all 83 regions of Russia...
February 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28163148/the-growing-role-of-echocardiography-in-interventional-cardiology-the-present-and-the-future
#13
REVIEW
A P Patrianakos, A A Zacharaki, E I Skalidis, M I Hamilos, F I Parthenakis, P E Vardas
As structural heart disease interventions continue to evolve to a sophisticated level, accurate and reliable imaging is required for pre-procedural selection of cases, intra-procedural guidance, post-procedural evaluation , as well as, for long-term follow-up of patients. Traditionally, cardiovascular procedures in the catheterization laboratory were guided by fluoroscopy and angiography. Advances in echocardiography can overcome most limitations of conventional imaging modalities and provide a successful completion of each step, of any catheter-based treatment...
February 2, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28148330/the-use-of-a-three-dimensional-print-model-of-an-aortic-arch-to-plan-a-complex-percutaneous-intervention-in-a-patient-with-coarctation-of-the-aorta
#14
Nalini Ghisiawan, Carrie E Herbert, Matthew Zussman, Adam Verigan, Gary E Stapleton
Recently, three-dimensional printing of heart models is being used to plan percutaneous and surgical interventions in patients with CHD. We describe a case where we used a three-dimensional print model to plan a complex percutaneous intervention in a patient with coarctation of the aorta.
December 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/28145875/novel-crossing-system-for-chronic-total-occlusion-recanalization-first-in-man-experience-with-the-soundbite-crossing-system
#15
Andrew Benko, Simon Bérubé, Christopher E Buller, Steven Dion, Louis-Philippe Riel, Martin Brouillette, Philippe Généreux
Chronic total occlusion (CTO) lesions are frequent in patients with peripheral and coronary artery disease, and are associated with a higher risk of adverse events, including mortality, decreased quality of life, and increased health-care costs. Percutaneous intervention of CTO lesions has been associated with a lower procedural success rate, and current dedicated CTO devices may be of limited use for non-CTO experts, and associated with increased intraprocedural complication rates. The SoundBite Crossing System (SoundBite Medical Solutions, Inc) is a newly-developed device using shockwaves (short-duration, high-amplitude pressure pulses) delivered to the tip of guidewire to facilitate penetration of the proximal cap and crossing of the occlusion...
February 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28135763/the-cyp2c19-2-and-cyp2c19-17-polymorphisms-play-a-vital-role-in-clopidogrel-responsiveness-after-percutaneous-coronary-intervention-a-pharmacogenomics-study
#16
Faruk Saydam, İrfan Değirmenci, Alparslan Birdane, Mahmut Özdemir, Taner Ulus, Cansu Özbayer, Ertuğrul Çolak, Necmi Ata, Hasan Veysi Güneş
Clopidogrel inhibits platelet activation and aggregation by blocking the P2Y12 receptor. Dual antiplatelet therapy with clopidogrel and aspirin is recommended treatment by current guidelines for patients undergoing percutaneous interventions. Recurrent ischaemic cardiac events after this treatment showed lack of clopidogrel responsiveness. We aimed to investigate the most noticeable variants in the genes involved in clopidogrel pharmacokinetics and pharmacodynamics. 347 Turkish patients who underwent percutaneous coronary interventions with stent implantation were included in our study...
January 30, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28117146/composite-y-grafting-using-the-left-internal-thoracic-artery-survival-and-angiography-in-198-cases
#17
Benjamin M Robinson, Hugh S Paterson, A Robert Denniss
BACKGROUND: Extended left internal thoracic artery (LITA) harvesting allows maximal grafting to the anterior and lateral walls with a single ITA conduit. This study evaluates outcomes following the use of a LITA Y graft as the primary grafting strategy. METHODS: Patients who underwent LITA composite Y-grafting (n=198) between 1995 and 2009 were identified from a cardiac surgical database. Follow-up (mean 13.1 years) was obtained by cross-reference with the state death registry and local cardiology databases...
December 23, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28116861/unprotected-left-main-disease-and-percutaneous-intervention-a-prototype-for-precision-medicine
#18
EDITORIAL
Arka Chatterjee, William B Hillegass
The SYNTAX Score based on angiographic findings is an actionable risk prediction model helping guide treatment for significant unprotected left main disease. Adding the clinical factor based EuroSCORE to SYNTAX improves outcome prediction for percutaneous coronary intervention of unprotected left main disease. Prediction models are an increasingly useful tool permitting cardiologists to optimize patient outcomes through "personalized" or precision medicine.
January 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28100626/effect-of-metformin-on-metabolites-and-relation-with-myocardial-infarct-size-and-left-ventricular-ejection-fraction-after-myocardial-infarction
#19
Ruben N Eppinga, Daniel Kofink, Robin P F Dullaart, Geertje W Dalmeijer, Erik Lipsic, Dirk J van Veldhuisen, Iwan C C van der Horst, Folkert W Asselbergs, Pim van der Harst
BACKGROUND: Left ventricular ejection fraction (LVEF) and infarct size (ISZ) are key predictors of long-term survival after myocardial infarction (MI). However, little is known about the biochemical pathways driving LV dysfunction after MI. To identify novel biomarkers predicting post-MI LVEF and ISZ, we performed metabolic profiling in the GIPS-III randomized clinical trial (Glycometabolic Intervention as Adjunct to Primary Percutaneous Intervention in ST Elevation Myocardial Infarction)...
February 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28100159/interventional-therapy-for-transplant-renal-artery-stenosis-is-safe-and-effective-in-preserving-allograft-function-and-improving-hypertension
#20
Lili Wang, Bin Liu, Jieke Yan, Yongzheng Wang, Wujie Wang, Wei Wang, Haiyang Chang, Hongwei Wang, Changjun Wang, Zheng Li, Yuliang Li
PURPOSE: To evaluate the outcomes of percutaneous intervention (PI) for transplant renal artery stenosis (TRAS). MATERIALS AND METHODS: Doppler ultrasonography was used as the screening tool, and angiography was the diagnostic method for TRAS. The indications for PI were (1) a reduction in lumen diameter of >50% or (2) a mean pressure gradient of >15 mm Hg. Technical success was assessed immediately after the procedure. The short-term results of stenosis were evaluated by serum creatinine (Scr) levels and blood pressure (BP)...
January 2017: Vascular and Endovascular Surgery
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