keyword
MENU ▼
Read by QxMD icon Read
search

Heart cath

keyword
https://www.readbyqxmd.com/read/28331134/significance-and-value-of-endomyocardial-biopsy-based-on-our-own-experience
#1
Hatsue Ishibashi-Ueda, Taka-Aki Matsuyama, Keiko Ohta-Ogo, Yoshihiko Ikeda
Endomyocardial biopsy (EMB) has been established in parallel with the development of percutaneous catheter technology for the diagnosis of cardiac diseases. It was developed in the early 1960 s in Japan by Drs. Konno, Sakakibara and Sekiguchi of Tokyo Women's Medical University. EMB is a valuable and useful, but invasive, modality for making a definite diagnosis in diseases such as myocarditis and secondary cardiomyopathies, which are often difficult to diagnose by imaging modality alone. In the field of heart transplantation, the histology of EMB helps monitor rejection to allografts...
March 22, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28330965/greater-sympathoadrenal-activation-with-longer-pre-ventilation-intervals-after-immediate-cord-clamping-increases-hemodynamic-lability-at-birth-in-preterm-lambs
#2
Joseph J Smolich, Kelly R Kenna, Murray David Esler, Sarah E Phillips, Gavin W Lambert
This study tested the hypothesis that varying degrees of hemodynamic fluctuations seen after birth following immediate cord clamping were related to development of asphyxia with longer cord clamp-to-ventilation intervals, resulting in higher perinatal circulating levels of the catecholamines norepinephrine (NE) and epinephrine (Epi), and thus increased heart rate, blood pressures and cardiac contractility after birth. Anesthetized preterm fetal lambs were instrumented with 1) aortic (AoT) and pulmonary trunk (PT) micromanometers to obtain pressures and the maximal rate of pressure rise (dP/dtmax) as a surrogate measure of ventricular contractility, and 2) an AoT catheter to obtain samples for blood gas and catecholamine analyses...
March 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28329459/nineteen-years-of-adult-congenital-heart-surgery-in-a-single-center
#3
Madurra Perinpanayagam, Signe H Larsen, Kristian Emmertsen, Marianne B Møller, Vibeke E Hjortdal
BACKGROUND: Adults with congenital heart disease are a growing population. We describe surgical interventions, short- and long-term mortality and morbidity, and risk factors for adverse events in a population-based cohort. METHODS: Patients over or equal to 18 years with congenital heart disease who underwent cardiac surgery at Aarhus University Hospital, Denmark, from 1994 to 2012 were included in the study. Diagnoses, surgical procedures, postoperative complications, and survival were identified in hospital databases, medical records, and the Danish Civil Registration System...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329317/patient-prosthesis-mismatch-in-new-generation-trans-catheter-heart-valves-a-propensity-score-analysis
#4
Alexis Theron, Johan Pinto, Dominique Grisoli, Karolina Griffiths, Erwan Salaun, Nicolas Jaussaud, Eléonore Ravis, Marc Lambert, Lyna Messous, Cecile Amanatiou, Thomas Cuisset, Vlad Gariboldi, Roch Giorgi, Gilbert Habib, Frederic Collart
Aims: When compared with the former Sapien XT (XT-THV), the Sapien 3 trans-catheter heart valve (S3-THV) embeds an outer annular sealing cuff to prevent para-valvular regurgitation (PVR). The consequences of this new feature on valve haemodynamics have never been evaluated. We aimed to compare both types of prostheses regarding patient-prosthesis mismatch (PPM). Methods and results: Patients who underwent a TAVR for aortic stenosis were retrospectively included...
February 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329078/apical-closure-device-for-full-percutaneous-transapical-valve-implantation-stress-test-in-an-animal-model%C3%A2
#5
Enrico Ferrari, Stefanos Demertzis, Jennifer Angelella, Denis Berdajs, Piergiorgio Tozzi, Tiziano Moccetti, Francesco Maisano, Ludwig K von Segesser
OBJECTIVES: Transapical valve implantation is traditionally performed through a left antero-lateral mini-thoracotomy. A self-expandable apical closure device has recently been developed for full-percutaneous transapical valve implantation. We performed haemodynamics stress-tests on an animal model to evaluate the sealing properties. METHODS: Under general anaesthesia 5 pigs (mean weight: 67 ± 6 Kg) received full heparinization (100 IU/Kg; activated clotting time >250 s and, through inferior mini-sternotomies, 21-Fr introducer sheaths for transapical aortic valve implantation (outer diameter: 25-Fr) were placed over-the-wire in the apexes...
January 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28328585/mechanical-support-with-impella-during-malignant-arrhythmia-ablation-a-case-report-on-the-growing-trend-in-the-electrophysiology-laboratory
#6
Adam C Adler, Ramesh Kodavatiganti
Congenitally corrected transposition of the great arteries is a rare form of congenital heart disease in which the persistence of the right ventricle as the systemic ventricle leads to heart failure, tricuspid valve insufficiency, and arrhythmia. Supraventricular arrhythmias are especially common in these patients. We discuss the anesthetic management of a 33-year-old patient with congenitally corrected transposition of the great arteries who required a ventricular assist device to maintain cardiac output during ablation of supraventricular tachyarrythmia...
March 17, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28325672/new-parameter-derived-from-three-dimensional-speckle-tracking-echocardiography-for-the-estimation-of-left-ventricular-filling-pressure-in-nondilated-hearts
#7
Daisuke Sakurai, Toshihiko Asanuma, Kasumi Masuda, Hikaru Koriyama, Satoshi Nakatani
BACKGROUND: E/e' is clinically useful for the noninvasive assessment of left ventricular (LV) filling pressure. However, its use in some conditions is controversial, and angle dependence of the Doppler measurement and preload dependence of mitral e' in nondilated hearts represent major problems. The ratio of early filling rate derived from the time derivative of LV volume to early diastolic strain rate (FRe/SRe), similar to E/e', by three-dimensional (3D) speckle-tracking echocardiography has the potential to address such limitations...
March 18, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28324970/development-of-data-acquisition-components-for-simultaneous-recording-of-3d-epicardial-and-surface-ecg-signals-in-the-langendorff-perfusion-apparatus
#8
Ryan Wade Selby, Anup Jonchhe, Chen Kaplan, Coeli M Lopes, Behnaz Ghoraani
Sudden Cardiac Death (SCD) claims 7 million lives per year. The importance of myocardial electrogram (EGM) repolarization alternans and surface electrocardiogram (ECG) T-wave alternans is gaining traction for understanding the underlying SCD mechanisms. However, the relationship between the 3D spatial distribution of myocardial EGMs and surface ECG with respect to SCD has yet to be investigated. To make this happen, a modified data acquisition system has been developed and fabricated in conjunction with the Langendorff perfusion system to enable simultaneous recording and analysis of the 3D spatial distribution of myocardial EGMs and the surface ECG...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28321396/popular-hybrid-congenital-heart-procedures-without-cardiopulmonary-bypass
#9
REVIEW
Aamisha Gupta, Zahid Amin
As surgical and catheter interventions advance, patients with congenital heart disease are now offered alternative treatment options that cater to their individual needs. Furthermore, collaboration between interventional cardiologists and cardiac surgeons have led to the development of hybrid procedures, using the best techniques of each respective field to treat these complex cardiac entities from initial treatment in the pediatric patient to repeat intervention in the adult. We present a review of the increased popularity and trend in hybrid procedures in congenital heart disease without the use of cardiopulmonary bypass...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28320201/analysis-of-never-events-following-adult-cardiac-surgical-procedures-in-the-united-states
#10
Michael P Robich, Brianna M Krafcik, Nishant K Shah, Alik Farber, Denis Rybin, Jeffrey J Siracuse
BACKGROUND: This study was conducted to determine the risk factors, nature, and outcomes of "never events" following open adult cardiac surgical procedures. Understanding of these events can reduce their occurrence, and thereby improve patient care, quality metrics, and cost reduction. METHODS: "Never events" for patients included in the Nationwide Inpatient Sample who underwent coronary artery bypass graft, heart valve repair/replacement, or thoracic aneurysm repair between 2003-2011 were documented...
March 16, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28315943/hyperoxia-reduces-oxygen-consumption-in-children-with-pulmonary-hypertension
#11
Long Guo, Prashant Bobhate, Shine Kumar, Karunakar Vadlamudi, Tarek Kaddoura, Mohamed Elgendi, Paula Holinski, James Y Coe, Jennifer Rutledge, Ian Adatia
High inspired oxygen concentration (FiO2 > 0.85) is administered to test pulmonary vascular reactivity in children with pulmonary hypertension (PH). It is difficult to measure oxygen consumption (VO2) if the subject is breathing a hyperoxic gas mixture so the assumption is made that baseline VO2 does not change. We hypothesized that hyperoxia changes VO2. We sought to compare the VO2 measured by a thermodilution catheter in room air and hyperoxia. A retrospective review of the hemodynamic data obtained in children with PH who underwent cardiac catheterization was conducted between 2009 and 2014...
March 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28314923/new-interventional-treatment-model-for-pancreatic-neoplasms-using-gemcitabine-eluting-hydrogel-devices-in-vitro-and-in-vivo-results
#12
Ruben Lopez-Benitez, David Benz, Yue Wu, Xinping Wu, Samuel Chen, Gregory M Cruise
OBJECTIVES: In vitro and in vivo evaluation of fast- and slow-release gemcitabine-eluting hydrogel (GEH) devices. METHODS: For in vitro elution, the GEH devices were placed in phosphate-buffered saline at 37 °C. Periodically, the solution was analyzed for gemcitabine. The devices consisting of fast release (n = 8), slow release (n = 6), or bland (n = 4) were delivered through a 5-Fr catheter into the gastroduodenal artery of a pig. Additionally, four pigs were treated with intravenous (IV) injection of gemcitabine...
March 17, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28304320/optimal-radiologic-position-of-an-umbilical-venous-catheter-tip-as-determined-by-echocardiography-in-very-low-birth-weight-newborns
#13
B C F Karber, J Nielsen, D Balsam, C Messina, D Davidson
OBJECTIVE: To compare chest X-ray with echocardiogram (ECHO) in the localization of an umbilical venous catheter (UVC) tip in very low birth weight infants (VLBW). Secondary objectives determined the association between techniques for tip placement by the vertebral body level on X-ray, as well as the length of the thoracic inferior vena cava-right atrial (TIVC-RA) junction by ECHO. STUDY DESIGN: Prospective, sequentially enrolled, masked, single regional perinatal center study...
March 16, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28302764/-18-f-gp1-a-novel-fluorine-18-labeled-tracer-designed-for-pet-imaging-of-thrombi-with-high-detection-sensitivity-and-low-background
#14
Jessica Lohrke, Holger Siebeneicher, Markus Berger, Michael Reinhardt, Mathias Berndt, Andre Mueller, Marion Zerna, Norman Koglin, Felix Oden, Marcus Bauser, Matthias Friebe, Ludger M Dinkelborg, Joachim Huetter, Andrew W Stephens
Thromboembolic diseases such as myocardial infarction, stroke, transient ischemic attacks and pulmonary embolism are major causes of morbidity and mortality worldwide. GPIIb/IIIa is the key receptor involved in platelet aggregation and is a validated target for therapeutic approaches and diagnostic imaging. The aim of this study was to develop and characterize a specific small molecule tracer for positron emission tomography (PET) imaging that binds with high affinity to GPIIb/IIIa receptors and has suitable pharmacokinetic properties to overcome limitations of previous approaches...
March 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28302739/changing-landscape-of-congenital-heart-disease
#15
Berto J Bouma, Barbara J M Mulder
Congenital heart disease is the most frequently occurring congenital disorder affecting ≈0.8% of live births. Thanks to great efforts and technical improvements, including the development of cardiopulmonary bypass in the 1950s, large-scale repair in these patients became possible, with subsequent dramatic reduction in morbidity and mortality. The ongoing search for progress and the growing understanding of the cardiovascular system and its pathophysiology refined all aspects of care for these patients. As a consequence, survival further increased over the past decades, and a new group of patients, those who survived congenital heart disease into adulthood, emerged...
March 17, 2017: Circulation Research
https://www.readbyqxmd.com/read/28298035/effect-of-intrathecal-milrinone-injection-via-lumbar-catheter-on-delayed-cerebral-ischemia-after-aneurysmal-subarachnoid-hemorrhage
#16
Masaomi Koyanagi, Hitoshi Fukuda, Benjamin Lo, Minami Uezato, Yoshitaka Kurosaki, Nobutake Sadamasa, Akira Handa, Masaki Chin, Sen Yamagata
OBJECTIVE Delayed cerebral ischemia (DCI) is an important complication after aneurysmal subarachnoid hemorrhage (aSAH). Although intrathecal milrinone injection via lumbar catheter to prevent DCI has been previously reported to be safe and feasible, its effectiveness remains unknown. The goal of this study was to evaluate whether intrathecal milrinone injection treatment after aSAH significantly reduced the incidence of DCI. METHODS The prospectively maintained aSAH database was used to identify patients treated between January 2010 and December 2015...
March 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28297573/magnetic-resonance-imaging-guided-delivery-of-neural-stem-cells-into-the-basal-ganglia-of-nonhuman-primates-reveals-a-pulsatile-mode-of-cell-dispersion
#17
Kristen E Malloy, Jinqi Li, Gourav R Choudhury, April Torres, Shruti Gupta, Chris Kantorak, Tim Goble, Peter T Fox, Geoffrey D Clarke, Marcel M Daadi
Optimal stem cell delivery procedures are critical to the success of the cell therapy approach. Variables such as flow rate, suspension solution, needle diameter, cell density, and tissue mechanics affect tissue penetration, backflow along the needle, and the dispersion and survival of injected cells during delivery. Most cell transplantation centers engaged in human clinical trials use custom-designed cannula needles, syringes, or catheters, sometimes precluding the use of magnetic resonance imaging (MRI)-guided delivery to target tissue...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28296135/assessment-of-trans-aortic-pressure-gradient-using-a-coronary-pressure-wire-in-patients-with-mechanical-aortic-and-mitral-valve-prostheses
#18
Nisharahmed Kherada, Juan Carlos Brenes, Annapoorna S Kini, George D Dangas
Accurate evaluation of trans-aortic valvular pressure gradients is challenging in cases where dual mechanical aortic and mitral valve prostheses are present. Non-invasive Doppler echocardiographic imaging has its limitations due to multiple geometric assumptions. Invasive measurement of trans-valvular gradients with cardiac catheterization can provide further information in patients with two mechanical valves, where simultaneous pressure measurements in the left ventricle and ascending aorta must be obtained...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28291473/physiological-impact-of-platelet-apheresis-in-pigs-oxygen-metabolism-and-coagulation
#19
Wenjun Z Martini, Cassandra M Rodriguez, Jonathan Richardson, James K Aden, Andrew P Cap, Michael A Dubick
INTRODUCTION: Platelet apheresis is a routine clinical practice, but the physiological impact on the donors has been incompletely characterized. This study measured the effects of platelet apheresis on hemodynamics, oxygen metabolism, and coagulation in pigs to assess its impact before employing the animals in experimental studies. METHODS: Forty pigs (39.8 ± 0.6 kg) were anesthetized and catheterized with an apheresis catheter in the femoral vein. During the platelet apheresis process, blood was withdrawn from the pig to separate platelets, and the remaining red blood cells and plasma returned back to the pigs, using the Haemonetics MCS+9000 system...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28289497/interventional-therapy-for-pulmonary-embolism
#20
Alan B Lumsden, Erik Suarez
Patients with pulmonary embolism (PE) present with highly variable clinical symptoms and often have accompanying comorbidities. Timely diagnosis and treatment are critical to help prevent recurrence and increased morbidity/mortality. While open surgical thrombectomy was once reserved only for those with massive PE and hemodynamic compromise, it has been reevaluated with a focus on careful patient selection and early intervention. Lately, there has been increased interest in catheter-based interventions and in combining these with an open surgical component to decrease the magnitude of the intervention-for example, direct placement of large-bore thrombectomy devices directly into the right ventricle via sternotomy or subxiphoid approaches...
October 2016: Methodist DeBakey Cardiovascular Journal
keyword
keyword
3535
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"