keyword
MENU ▼
Read by QxMD icon Read
search

Cardiac cath

keyword
https://www.readbyqxmd.com/read/29149500/ep-radiofrequency-generators-significant-offsets-between-selected-and-delivered-power
#1
Felix Bourier, Bernhard Schwarz, Amir Brkic, Lara Wolf, Verena Semmler, Marc Kottmaier, Elena Risse, Marta Telishevska, Stephanie Brooks, Sarah Lengauer, Marielouise Kornmayer, Katharina Koch-Büttner, Florian Berger, Gabriele Hessling, Isabel Deisenhofer, Tilko Reents
INTRODUCTION: For radiofrequency ablation, the EP Shuttle®, Ampere®, and SmartAblate® generator models are most frequently used in clinical practice. The aim of this study was to assess the correlation between selected and delivered RF power for different generators. METHODS AND RESULTS: In an experimental setup, ablation catheters were connected to the EP Shuttle®, Ampere®, and SmartAblate® generators. The power delivered by the generators was measured using a current converter and an oscilloscope...
November 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29147768/non-invasive-methods-for-estimating-mpap-in-copd-using-cardiovascular-magnetic-resonance-imaging
#2
C S Johns, S Rajaram, D A Capener, C Oram, C Elliot, R Condliffe, D G Kiely, J M Wild, A J Swift
PURPOSE: Pulmonary hypertension (PH) is associated with a poor outcome in chronic obstructive pulmonary disease (COPD) and is diagnosed invasively. We aimed to assess the diagnostic accuracy and prognostic value of non-invasive cardiovascular magnetic resonance (CMR) models. METHODS: Patients with COPD and suspected PH, who underwent CMR and right heart catheter (RHC) were identified. Three candidate models were assessed: 1, CMR-RV model, based on right ventricular (RV) mass and interventricular septal angle; 2, CMR PA/RV includes RV mass, septal angle and pulmonary artery (PA) measurements; 3, the Alpha index, based on RV ejection fraction and PA size...
November 16, 2017: European Radiology
https://www.readbyqxmd.com/read/29146614/heart-rate-reduction-improves-biventricular-function-and-interactions-in-experimental-pulmonary-hypertension
#3
Olga Gomez, Kenichi Okumura, Osami Honjo, Mei Sun, Ryo Ishii, Bart Bijens, Mark K Friedberg
OBJECTIVES: To investigate mechanisms of heart rate (HR) reduction on biventricular function and interactions in experimental pulmonary arterial hypertension (PAH). METHODS: We compared cardiac-cycle mechanics and interventricular interactions in 15 sham, 8 monocrotaline-PAH, 9 PAH+carvedilol and 8 PAH+ivabradine rats. We used echocardiography to assess biventricular function, timing of cardiac- cycle events and septal position in PAH rats; and related HR reduction effect on biventricular function measured by echocardiography and conductance catheter...
November 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29145887/postpartum-infective-endocarditis-with-enterococcus-faecalis-in-japan-a-case-report
#4
Miku Tamura, Mitsutaka Shoji, Ken Fujita, Shohei Nakamura, Yurika Takahashi, Yurika Suzuki, Mika Asakura, Shun Kimizuka, Makiko Sasaki, Katsuya Sugawara
BACKGROUND: The clinical characteristics of infective endocarditis include the presence of predisposing cardiac disease, a history of illegal drug use, and high morbidity in the elderly. Only a few cases of the disease after delivery have been reported in the literature. We describe here a first case of enterococcal postpartum infective endocarditis without underlying disease in Japan. CASE PRESENTATION: We report the case of a 31-year-old Japanese woman with postpartum infective endocarditis by Enterococcus faecalis...
November 17, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29145303/epicardial-radiofrequency-catheter-ablation-of-brugada-syndrome-with-electrical-storm-during-ventricular-fibrillation-a-case-report
#5
Shufen Jiang, Xiaomeng Yin, Chang Dong, Yunlong Xia, Jinqiu Liu
RATIONALE: Brugada syndrome (BrS) is characterized by ST segment elevation at the J point ≥2 mm in the right precordial electrocardiogram (ECG) leads, in the absence of structural heart disease, electrolyte disturbances, or ischemia. It is a well-described cause of sudden death in young patients, especially in the age of between 30 and 40 years old. Here, we reported an unusual case of electrical storm (ES) of ventricular fibrillation (VF) caused by BrS with complete right bundle-branch block (CRBBB) in a 75-year-old male patient...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145266/catheter-ablation-of-ventricular-arrhythmia-originating-from-isolated-outflow-tract-diverticulum-two-case-reports-and-literature-review
#6
Xinbin Zhou, Haibin Xu, Zhijun Wang
RATIONALE: Congenital ventricular diverticulum is a rare cardiac malformation with a prevalence of about 0.26% in unselected adult patients during other diagnostic procedures. Ventricular arrhythmia originating from outflow tract diverticulum is even rarer and its etiology, epidemiology and proper treatment still remain controversial. PATIENT CONCERNS: We present 2 cases of isolated outflow tract diverticulum incidentally revealed by cardiac angiography during catheter ablation for ventricular arrhythmia...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142756/usefulness-of-central-venous-saturation-as-a-predictor-of-thiamine-deficiency-in-critically-ill-patients-a-case-report
#7
Genri Numata, Satoshi Kodera, Hiroyuki Kiriyama, Atsuko Nakayama, Eisuke Amiya, Arihiro Kiyosue, Masaru Hatano, Eiki Takimoto, Masafumi Watanabe, Issei Komuro
Background: Central venous oxygen saturation (ScvO2) reflects the balance of oxygen delivery and consumption. Low ScvO2 indicates the presence of inadequate oxygen delivery, while high ScvO2 indicates reduced oxygen consumption and is sometimes associated with a high mortality rate in critically ill patients from dysoxia. Thiamine is an essential cofactor in cellular aerobic metabolism. Thiamine deficiency is more prevalent than was previously thought, and underlies severe conditions in critically ill patients...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/29141527/decreases-in-mixed-venous-blood-o2-saturation-in-cardiac-surgery-patients-following-extubation
#8
Jeffrey Williams, Anna McLean, Jalil Ahari, Arun Jose, Georges Al-Helou, Italo Ibi, Farzad Najam Md, Guillermo Gutierrez
BACKGROUND: Decreases in mixed venous O2 saturation (SvO2) have been reported to occur in postcardiac surgery patients during weaning from mechanical ventilation. Our aim was to establish whether the physiological mechanism responsible for this phenomenon was a decrease in systemic O2 delivery (DO2) or an increase in global O2 consumption ([Formula: see text]O2). METHODS: We studied 21 mechanically ventilated, postoperative cardiac patients for 30 minutes before and 60 minutes after extubation...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29137910/tamponade-hemodynamic-and-echocardiographic-diagnosis
#9
REVIEW
Mark J Kearns, Keith R Walley
Cardiac tamponade is a medical emergency that can be readily reversed with timely recognition and appropriate intervention. The clinical diagnosis of cardiac tamponade requires synthesis of a constellation of otherwise non-specific features, based on an understanding of the underlying pathophysiology. Whereas echocardiographic examination is a central component of diagnosis, alone it is insufficient to establish the physiologic diagnosis of hemodynamically significant cardiac tamponade. The hemodynamic diagnosis of cardiac tamponade requires clinical evidence of low cardiac output and stroke volume in the setting of elevated cardiac filling pressures, with evidence of increased sympathetic tone (tachycardia, peripheral vasoconstriction, etc), and exclusion of other causes of shock as the primary problem (particularly cardiogenic shock)...
November 11, 2017: Chest
https://www.readbyqxmd.com/read/29137044/outcomes-of-percutaneous-coronary-intervention-in-patients-with-coronary-chronic-total-occlusions-with-versus-without-type-2-diabetes-mellitus-a-systematic-review-and-meta-analysis
#10
Qiang Wang, Hao Liu, Jiawang Ding
BACKGROUND: Nowadays, due to advanced techniques and well-trained interventionists in catheter labs, new scientific research has shown percutaneous coronary intervention (PCI) to be a safe treatment procedure in patients with chronic total occlusion (CTO). However, no study has systematically compared PCI outcomes in CTO patients with versus without type 2 diabetes mellitus (T2DM). Therefore, through this meta-analysis we aimed to systematically solve this issue. METHODS: Between September 2016 and June 2017, the Cochrane Database of Randomized Trials, EMBASE, and MEDLINE databases were carefully searched for publications comparing PCI outcomes in CTO patients with versus without T2DM...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29132805/feasibility-of-the-use-of-transesophageal-echocardiography-as-a-surface-probe-for-puncturing-and-catheterization-of-the-internal-jugular-vein-a-randomized-controlled-pilot-study
#11
Yi Teng, Mengchan Ou, Hai Yu
OBJECTIVE: To compare the transesophageal echocardiography (TEE) probe as a surface probe with the vascular probe for guiding internal jugular vein (IJV) catheterization. DESIGN: Prospective, randomized, controlled pilot study. SETTING: University hospital. PARTICIPANTS: One hundred cardiac surgery patients, including 50 adult and 50 pediatric patients. INTERVENTIONS: Patients in the TEE probe group received right IJV catheterization using the TEE probe, while the vascular probe group used the vascular probe for catheterization...
October 4, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29130036/accuracy-precision-and-trending-ability-of-electrical-cardiometry-cardiac-index-versus-continuous-pulmonary-artery-thermodilution-method-a-prospective-observational-study
#12
P B W Cox, A M den Ouden, M Theunissen, L J Montenij, A G H Kessels, M D Lancé, W F F A Buhre, M A E Marcus
Introduction: Evaluation of accuracy, precision, and trending ability of cardiac index (CI) measurements using the Aesculon™ bioimpedance electrical cardiometry (Aesc) compared to the continuous pulmonary artery thermodilution catheter (PAC) technique before, during, and after cardiac surgery. Methods: A prospective observational study with fifty patients with ASA 3-4. At six time points (T), measurements of CI simultaneously by continuous cardiac output pulmonary thermodilution and thoracic bioimpedance and standard hemodynamics were performed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29128608/a-retrospective-comparison-of-survivors-and-non-survivors-of-massive-pulmonary-embolism-receiving-veno-arterial-extracorporeal-membrane-oxygenation-support
#13
Bennet George, Marc Parazino, Hesham R Omar, George Davis, Maya Guglin, John Gurley, Susan Smyth
INTRODUCTION: While the optimal care of patients with massive pulmonary embolism (PE) is unclear, the general goal of therapy is to rapidly correct the physiologic derangements propagated by obstructive clot. Extracorporeal membrane oxygenation (ECMO) in this setting is promising, however the paucity of data limits its routine use. Our institution expanded the role of ECMO as an advanced therapy option in the initial management of massive PE. The purpose of this project was to evaluate ECMO-treated patients with massive PE at an academic medical center and report shortterm mortality outcomes...
November 8, 2017: Resuscitation
https://www.readbyqxmd.com/read/29125047/extra-corporeal-membrane-oxygenation-and-outcomes-in-massive-pulmonary-embolism-two-eras-at-an-urban-tertiary-care-hospital
#14
David L Ain, Mazen Albaghdadi, Jay Giri, Farhad Abtahian, Michael R Jaff, Kenneth Rosenfield, Nathalie Roy, Mauricio Villavicencio-Theoduloz, Thoralf Sundt, Ido Weinberg
Mortality associated with high-risk pulmonary embolism (PE) remains high. Extra-corporeal membrane oxygenation (ECMO) allows for acute hemodynamic stabilization and potentially for administration of other disease process altering therapies. We sought to compare two eras: pre-ECMO and post-ECMO in relation to high-risk PE treatment and mortality. A single-center retrospective chart review was conducted of high-risk PE patients. High-risk PE was defined as acute PE and cardiac arrest or shock. A total of 60 patients were identified, 31 in the pre-ECMO era and 29 in the post-ECMO era...
November 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/29119834/numerical-study-of-intrathecal-drug-delivery-to-a-permeable-spinal-cord-effect-of-catheter-position-and-angle
#15
G Pizzichelli, B Kehlet, Ø Evju, B A Martin, M E Rognes, K A Mardal, E Sinibaldi
Intrathecal delivery is a procedure involving the release of therapeutic agents into the cerebrospinal fluid (CSF) hrough a catheter. It holds promise for treating high-impact central nervous system pathologies, for which systemic administration routes are ineffective. In this study we introduce a numerical model able to simultaneously account for solute transport in the fluid and in the spinal cord. Using a Discontinuous Galerkin method and a three-dimensional patient-specific geometry, we studied the effect of catheter position and angle on local spinal cord drug concentration...
November 9, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/29115202/risk-factors-for-hospital-associated-venous-thromboembolism-in-critically-ill-children-following-cardiothoracic-surgery-or-therapeutic-cardiac-catheterisation
#16
Christie M Atchison, Ernest Amankwah, Jean Wilhelm, Shilpa Arlikar, Brian R Branchford, Arabela Stock, Michael Streiff, Clifford Takemoto, Irmel Ayala, Allen Everett, Gary Stapleton, Marshall L Jacobs, Jeffrey P Jacobs, Neil A Goldenberg
BACKGROUND: Paediatric hospital-associated venous thromboembolism is a leading quality and safety concern at children's hospitals. OBJECTIVE: The aim of this study was to determine risk factors for hospital-associated venous thromboembolism in critically ill children following cardiothoracic surgery or therapeutic cardiac catheterisation. METHODS: We conducted a retrospective, case-control study of children admitted to the cardiovascular intensive care unit at Johns Hopkins All Children's Hospital (St...
November 8, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29106565/optimum-position-of-transthoracic-intracardiac-line-following-cardiac-surgery
#17
T K Susheel Kumar, Saradha Subramanian, James Benjamin Tansey, Mayte Figueroa, David Zurakowski, Jerry Allen, Samir Shah, Anna Brauninger, Lindsey Bird, Mohammed Ali, Christopher J Knott-Craig
OBJECTIVES: The transthoracic intracardiac line placed in the right atrium provides a convenient access to the central venous system following cardiac surgery. However, it is associated with risks such as migration and bleeding. We conducted a retrospective study to determine whether position of transthoracic line with respect to site of exit from the chest makes a difference in the rate of complications. METHODS: All infants receiving a transthoracic intracardiac line in the right atrium following cardiac surgery between June 2012 and December 2015 were part of the study...
July 4, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29101573/transcatheter-atrial-septal-defect-closure-in-an-infant-body-weight-6-4%C3%A2-kg-using-the-gore-cardioform-septal-occluder-gcso
#18
Roman Scheidmann, Thomas Paul, Matthias Sigler
INTRODUCTION: Transcatheter closure has become the treatment of choice for secundum atrial septal defects (ASD II), but particularly in small children, there is concern regarding procedure-related complications. CASE DESCRIPTION: We report on a 10-month-old infant, body weight of 6.4 kg, with a large ASD who was referred for failure to thrive and dyspnea on exertion. Echocardiography showed two neighboring ASDs centrally located within an atrial septum with a length of 27 mm resulting in significant left-to-right shunting...
November 3, 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/29100747/box-isolation-of-fibrotic-areas-a-substrate-modification-approach-in-atrial-fibrillation-patients
#19
REVIEW
Fabian Moser, Doreen Schreiber, Andreas Rieger, Monica Trofin, Christian Pönisch, Hans Kottkamp
In the last years, atrial fibrosis was shown to be an independent predictor of procedural failure in patients with paroxysmal and persistent atrial fibrillation. Ablation strategies have been developed to improve the outcome of catheter ablation by targeting detected areas of fibrosis, based either on endocardial voltage mapping or cardiac magnetic resonance. Box isolation of fibrotic areas (BIFA) is a new and promising patient-tailored ablation strategy for atrial fibrillation patients targeting substantial fibrotic areas by circumferential isolation of left atrial fibrosis...
October 31, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29092127/iatrogenic-lutembacher-syndrome-after-percutaneous-mitral-commissurotomy
#20
Theodoros D Karamitsos, Chrysovalantou Nikolaidou, Athanasios Koutsakis, Kyriakos Anastasiadis, Charalambos Karvounis, Stavros Hadjimiltiades
Atrial septal defects (ASDs) are common immediately after percutaneous mitral commissurotomy (PMC). They are usually small, hemodynamically insignificant, and tend to decrease or disappear within 6 to 12 months. Herein, a case is described of persistent ASD in a patient with mitral valve stenosis who had undergone successful PMC three years previously. The patient had signs and symptoms of right heart failure and severe tricuspid regurgitation (TR) with borderline right ventricular systolic function on echocardiography, in addition to the ASD...
May 2017: Journal of Heart Valve Disease
keyword
keyword
5528
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"