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Source: Heart, Lung and Circulation

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Total 240 results found since Jan 2013.

Left Atrial Appendage Closure: CT Sizing is Associated with Highly Favourable Procedural Outcomes
Background: Percutaneous left atrial appendage (LAA) closure affords stroke prophylaxis in atrial fibrillation where the risks of anticoagulation are prohibitive. Accurate sizing of the LAA orifice is a key consideration in reducing procedural hazard. CT may be superior to 2D-TOE alone, but there are currently no published outcome data for this strategy to LAA closure workup.
Source: Heart, Lung and Circulation - July 27, 2016 Category: Cardiology Authors: A. Rajwani, A. Nelson, M. Shirazi, D. Wong, S. Delacroix, R. Chokka, P. Disney, K. Teo, G. Young, S. Worthley Tags: 554 Source Type: research

How Good is Stroke Volume Calculation by the Doppler Continuity Method?
Introduction: Echocardiographic transvalvular stroke volume (SV) calculations are used to quantify regurgitant volume and shunt ratios. Calculations of stroke volume (SV) depend on the accuracy of valve diameter measurement and spectral Doppler velocity recording. We sought to compare how well SV calculated across each of the 4 intracardiac valve correlated with each other.
Source: Heart, Lung and Circulation - July 27, 2016 Category: Cardiology Authors: J. Stevenson, A. Kwon, G. Scalia Tags: 544 Source Type: research

Cardiovascular Disease, Medications and Heat: What Precautionary Advice is Available?
Global temperatures are rising, increasing the probability of exposure to extreme heat events. Patients with cardiovascular (CV) disease may be at increased risk during extreme heat events, and CV medications may exacerbate this risk through dehydration and electrolyte imbalance- including hyponatraemia. Normal CV adaptation to severe heat stress can involve an increase in cardiac output (CO) by up to 20 L/min and a shift of heated blood from core to peripheral circulation. An inability to increase CO results in impaired heat tolerance and increased susceptibility to heat stroke.
Source: Heart, Lung and Circulation - July 27, 2016 Category: Cardiology Authors: N. Jeyakumaran, G. Gabb, D. Rowett, R. Tadros Tags: 749 Source Type: research

Perceptions from Cardiac and Stroke Patients of the Information Provided by Health Professionals at Discharge from Hospital (2012-2014)
Introduction: It is essential that patients are provided with education and information on symptom recognition and emergency actions plans at discharge to prevent cardiac and stroke rehospitalisations.
Source: Heart, Lung and Circulation - July 27, 2016 Category: Cardiology Authors: N. Berry, C. Astley, H. Du, K. Wechkunanukul, J. Tongpeth, P. Wonggom, R. Clark Tags: 707 Source Type: research

Meta-Analysis of Early or Late Surgery for Infective Endocarditis and Associated Stroke
Background: Surgery is recommended for infective endocarditis patients who develop ischaemic stroke, however the optimal timing of surgery remains controversial. In this meta-analysis, we compared the outcomes of early and delayed cardiac surgery for infective endocarditis in this setting.
Source: Heart, Lung and Circulation - July 27, 2016 Category: Cardiology Authors: T. Wang, M. Wang, J. Pemberton Tags: 684 Source Type: research

Low Dose Combination Antihypertensive Pharmacotherapy Can Be Very Effective. Angiotensin Receptor Blockers/Angiotensin Converting Enzyme Inhibitors Are Often Unnecessary
Introduction: Hypertension treatment often fails to achieve good blood pressure (BP) control, despite a wide range of available pharmacotherapy, partly because of poor side effect issues, which are often dose-related. Angiotensin receptor blockers, ARBs and angiotensin converting enzyme inhibitors, ACE-Is are known to increase BP variability, which may predispose to falls and stroke, compared to diuretics and calcium channel blockers (CCBs), which reduce BP variability.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: S. Dimmitt, A. Moran, M. Scartozzi, H. Stampfer Tags: 36 Source Type: research

New Onset Atrial Fibrillation Is Associated with Elevated Galactic-3 Levels
Background: Atrial fibrillation (AF) is associated with increased risk of stroke and cardiac mortality. Atrial remodelling and fibrosis have been suggested to participate in the pathogenesis of AF. Galectin-3 is a secreted protein that has regulatory roles in inflammation, fibrosis and tissue repair. Clinical studies have reported increased circulating galectin 3 levels and cardiac remodelling. Galectin-3 levels have been shown to predict atrial remodelling and incidence of AF. In the current investigation, we tested the hypothesis that Galectin-3 release occurs selectively in the acute phase of AF.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: D. Chen, N. Procter, V. Goh, S. Liu, S. Chua, B. Assadi-Khansari, J. Horowitz, A. Sverdlov, D. Ngo Tags: 187 Source Type: research

Successful Hybrid Coronary Artery Revascularisation in a Patient with Severe Cerebrovascular Disease - a New Treatment Option to Minimise the Risk of Stroke
Coronary artery bypass surgery (CABG) is the treatment of choice for patients with severe unprotected left main disease. CABG does however expose patients to a higher risk of cerebrovascular accidents when compared to percutaneous coronary intervention (PCI).
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: A. Challa, E. Shaw, C. Raffel, P. Pohlner Tags: 147 Source Type: research

New-Onset Complete Left Bundle Branch Block in a Patient with Heat Stroke
We present the first case of new-onset complete left bundle branch block (LBBB), which resolved with cooling and rehydration.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: D. Nayyar, M. Shatwell, A. Gandhi Tags: 118 Source Type: research

10-year Australian Trends in Periprocedural Complications after PCI
We examined the incidence and predictors of bleeding, acute kidney injury (AKI) and stroke following PCI, and their impact on 30-day outcomes.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: S. Biswas, N. Andrianopoulos, A. Brennan, A. Ajani, J. Lefkovits, R. Warren, S. Duffy, D. Clark, G. New, C. Hiew, C. Reid, D. Eccleston Tags: 379 Source Type: research

Left Atrial Appendage Closure in Patients with Contra-Indications to Anticoagulants
This study sought to evaluate the utility of LAA device occlusion alone without OAC in patients at high risk of stroke but at serious risk of bleeding.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: S. Kumar, V. Paul, R. Mahajan, J. Marangou, P. Waddy, D. Lau, H. Haqqani, P. Sanders Tags: 351 Source Type: research

A Case Report of Severe Myocardial Stunning and Death Following Electro-Cardioversion (ECV) for Atrial Flutter
Electro-cardioversion (ECV) is considered a safe and effective therapy to terminate atrial arrhythmias. A 72-year-old previously well man with a history of hypertension and stroke with no residual deficits, presented with 1-day history of palpitations. ECG showed incomplete RBBB, atrial flutter with rapid ventricular rate and no ischaemic changes. There was no acute reversible precipitant identified and cardiac enzymes were normal. Initial transthoracic echocardiogram (TTE) showed normal biventricular size and function, satisfactory valvular function and moderate LA dilatation.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: P. Venkataraman, A. Koshy, A. Teh, B. Chou Tags: 322 Source Type: research

Trends in Prescription of Novel Oral Anticoagulants (NOACs) and Warfarin in Australia 2010-2015
This study examines the rates of prescription of rivaroxaban, apixaban, dabigatran and warfarin over the period of July 2010 to June 2015.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: A. Vlachadis Castles, I. Tsay, W. van Gaal Tags: 321 Source Type: research

High Atrial Ectopic Activity in Stroke: An Independent Risk Factor?
Background: High atrial ectopic burden has been associated with an increased risk of developing atrial fibrillation (AF) and more recently, an increased risk of ischaemic stroke beyond manifest AF.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: A. Koshy, J. Sajeev, K. Rajakariar, P. Andrew, M. Zureik, E. Quine, S. Parfrey, M. Street, P. Venkataraman, L. Roberts, A. Teh Tags: 302 Source Type: research

Emergency Department vs Cardiac Outpatient Guideline Adherence of Anticoagulation in AF Patients
Appropriate oral anticoagulation (OAC) is an important treatment modality for atrial fibrillation (AF), to reduce risk of thromboembolic complications. However, patients presenting to the emergency department (ED) with AF often do not have their stroke risk assessed & appropriate anticoagulation instituted. The aim of this study was to compare adherence to current OAC guidelines in the ER to a specialised cardiac outpatient clinic in AF patients.
Source: Heart, Lung and Circulation - July 26, 2016 Category: Cardiology Authors: G. Rangnekar, C. Gallagher, G. Wong, S. Rocheleau, M. Middledorp, R. Mahajan, P. Sanders, D. Lau Tags: 301 Source Type: research