Liza Thomas

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BACKGROUND Left atrial (LA) enlargement has been documented to occur in moderate and severe hypertension. METHODS AND RESULTS One hundred twelve mild hypertension patients were prospectively recruited and compared with 198 healthy volunteers. All recruits had a transthoracic echocardiogram. Maximum LA biplane volume, minimum LA biplane volume, and pre(More)
AIMS This study applies pulsed wave Doppler tissue imaging and colour Doppler tissue imaging to study changes in atrial function with ageing. We tested the following hypotheses: (1) pulsed wave Doppler tissue imaging can detect global changes of left atrial function associated with ageing similar to standard echocardiographic methods, (2) colour Doppler(More)
AIMS We determined late atrial function following a surgical linear endocardial radiofrequency (RF) ablation procedure that aimed to restore and maintain sinus rhythm (SR) in atrial fibrillation (AF). We tested the hypothesis that successful restoration of SR is accompanied by measurable mechanical atrial function that is at normal or near normal levels. (More)
AIMS The benefits from anthracycline chemotherapy are undermined by potentially life-threatening cardiotoxicity. Transthoracic echocardiography is the most commonly used method for monitoring cardiotoxicity, and centres on the measurement of left ventricular systolic function. The aim of this study was to utilize two-dimensional speckle tracking(More)
AIMS Atrial fibrillation (AF) can result in the development of left atrial appendage (LAA) thrombi. We sought to examine demographic and echocardiographic predictors of LAA thrombus in patients with persistent AF. METHODS AND RESULTS One hundred and sixty-five patients in persistent AF (36 with LAA thrombus and 129 without thrombus) were studied.(More)
BACKGROUND Current guidelines recommend that transthoracic echocardiography (TTE) should be performed for acute risk stratification following acute pulmonary embolism (PE), but it is unclear whether the initial TTE can predict long-term outcome beyond six months. We sought to assess the potential of the initial right atrial (RA) to left atrial (LA) area(More)
DIAGNOSTIC ULTRASOUND The term " diastology " characterises left ventricular (LV) relaxation, filling dynamics and their integration into clinical practice 1. Recent advances in echocardiography have enabled the understanding of this complex process, particularly relevant in the setting of an aging population and rising prevalence of heart failure (HF) with(More)
OBJECTIVES Patients with schizophrenia treated with clozapine are at risk of acute myocarditis and dilated cardiomyopathy. However, there are no data on the prevalence of subclinical cardiomyopathy or its associations. METHODS 100 consecutive patients with schizophrenia treated with clozapine for >1 year and without a history of cardiac pathology (group(More)
A 49-year-old female took low-dose pergolide (625 microg daily) for approx. 5 years (approximately cumulative dose 1.140 g/5 years) for the treatment of restless legs syndrome. She developed moderate to severe mitral and aortic valve insufficiency, requiring semi-urgent double-valve replacement. The initial diagnosis of rheumatic valve disease was refuted(More)