Indian Pacing Electrophysiol J
July 2024
Supraventricular tachyarrhythmias pose a significant challenge in neonates and infants, particularly within the first year of life, where prompt and effective management is crucial. By synthesizing available evidence and clinical experience, this review aims to provide a comprehensive overview of antiarrhythmic therapy in this vulnerable population, with a focus on narrow QRS supraventricular tachyarrhythmias. This review examines the current understanding of supraventricular tachyarrhythmia management and discusses the challenges associated with antiarrhythmic therapy in newborns and infants during the critical first year of life, evaluating the efficacy and safety of various antiarrhythmic agents commonly utilized in this population, including dosing considerations, adverse effects, and strategies for acute management and prophylactic long-term antiarrhythmic treatment.
View Article and Find Full Text PDFImplantable loop recorders (ILRs) are effective tools for detecting arrhythmias by long-term continuous heart rhythm monitoring. Benefits have been demonstrated even in pediatric patients. ILR with a long sensing vector has recently been designed to improve signal quality in terms of P wave visibility and R wave amplitude.
View Article and Find Full Text PDFObjectives: The Harlequin syndrome is a complication observed in patients receiving peripheral venoarterial extracorporeal membrane oxygenation. This condition is defined as a critical variation in the oxygen saturation between the upper and the lower part of the body deriving from a poor lung function.
Methods: Between July 2018 and November 2019, a total of 60 patients (42 men and 18 women; mean age 57.
Calorie restriction (CR) exerts remarkable, beneficial effects on glucose homeostasis by mechanisms that are not fully understood. Given the relevance of white adipose tissue (WAT) in glucose homeostasis, we aimed at identifying the main cellular processes regulated in WAT in response to CR in a pathologic context of obesity. For this, a gene-expression profiling study was first conducted in mice fed ad libitum or subjected to 40% CR.
View Article and Find Full Text PDFAt a given level of left ventricular (LV) systolic function, LV pump performance (assessed by stroke index [SVi]) may differ, depending on LV size. We evaluated whether low SVi may be considered a marker of risk for incident congestive heart failure (HF), independent of LV geometry and systolic function, assessed by ejection fraction (EF) or midwall fractional shortening (MFS), in a large population-based sample with normal EF. Clinical and echocardiographic data from the second Strong Heart Study (SHS) examination, including 2,885 American Indians (59 ± 8 years; 63% women) with normal EF (EF ≥51% in men and EF ≥55% in women) and without prevalent HF or significant valve disease, were analyzed.
View Article and Find Full Text PDFBackground: We evaluated the relationship of aortic root dimension (ARD) with flow output and both peripheral and central blood pressure, using multivariable equations predicting ideal sex-specific ARD at a given age and body height.
Methods And Results: We measured echocardiographic diastolic ARD at the sinuses of Valsalva in 3160 adults (aged 42±16 years, 61% women) from the fourth examination of the Strong Heart Study who were free of prevalent coronary heart disease, and we compared measured data with the theoretical predicted value to calculate a z score. Central blood pressure was estimated by applanation tonometry of the radial artery in 2319 participants.
Background And Purpose: Carotid atherosclerotic plaques (CAPs) can develop despite appropriate antihypertensive therapy. In this observational study, we assessed characteristics associated with risk of incident CAP in a large hypertensive registry.
Methods: We evaluated 2143 hypertensive patients without evidence of CAP.
Background: Interaction of cardiovascular (CV) risk factors with structural and hemodynamic alterations as combined promoters of atrial fibrillation (AF) is not yet well studied. We designed an observational, longitudinal, retrospective study to predict risk of incident AF by combination of CV risk profile, target organ damage and therapy in hypertensive patients.
Methods And Results: We studied 7062 hypertensive patients without history of AF or prevalent CV disease, with ejection fraction (EF) of ≥50%, and no more than stage III chronic kidney disease.
Objectives: In 2010, the Dallas Heart Study proposed an upgrade of the left ventricular geometric classification proposed in 1991, by using left ventricular mass combined with end diastolic volumes, and introducing the new categories of dilated left ventricular hypertrophy (LVH). We adopted the new method to test the prognostic impact of the left ventricular geometric patterns from the new classification.
Methods: We evaluated baseline anthropometric, laboratory and echocardiographic parameters of 8848 hypertensive patients from the Campania Salute Network (53 ± 12 years, 56% male), free of prevalent cardiovascular disease, valve disease and with ejection fraction ≥50%.
Introduction: The recommendation to start antihypertensive therapy with diuretics (D) might produce delay in blood pressure (BP) control and, possibly, increase cost/benefit ratio.
Aim: We evaluate the effects of D in relation to the administration of other anti-hypertensive medications, in clinical practice.
Methods: General practitioners recruited 2,409 hypertensive patients with indication to antihypertensive therapy, who were randomized to start treatment with chlorthalidone (12.
Background Fibro-calcification of the mitral annulus (MAC) has been associated with increased risk of ischemic stroke in general populations. This study was performed to assess whether MAC predicts incidence of ischemic stroke in treated hypertensive patients with left ventricular hypertrophy (LVH). Methods Baseline and follow-up clinical and echocardiographic parameters were assessed in 939 hypertensive patients with electrocardiogram (ECG) LVH participating in the Losartan Intervention for Endpoint reduction in hypertension (LIFE) echocardiography substudy (66±7 years; 42% women; 11% with diabetes) who did not have aortic or mitral valve stenosis or prosthesis.
View Article and Find Full Text PDFObjective: Weight loss improves cardiac abnormalities associated with severe obesity. We evaluated the impact of weight loss following laparoscopic gastric bypass (LGBP) on left ventricular (LV) geometry and function in obese patients.
Methods: Twenty-six patients with severe obesity (41 ± 8 years, 50% women) underwent Doppler echocardiograms before and after LGBP, to measure LV geometry, excess of LV mass relative to hemodynamic load and systolic and diastolic function.
Background: Pulse pressure/stroke volume indexed to height(2.04) (PP/SVi) is a validated measure of arterial stiffness, but its relation to carotid atherosclerosis is unknown.
Methods: Clinical, echocardiographic, and carotid ultrasound data from 6,209 hypertensive patients without prevalent cardiovascular (CV) disease in the Campania Salute Network were analyzed.
Objective: Metabolic syndrome (MetS) is associated with uncontrolled blood pressure (BP), despite use of aggressive therapy. This study was performed to assess whether the use of different classes of antihypertensive drugs might influence this association.
Methods: We evaluated risk of uncontrolled BP (BP ≥ 140/90 mmHg under antihypertensive treatment) at the time of the last available visit, after a mean follow-up of 5 years in 4612 hypertensive patients without prevalent cardiovascular disease (43% women, 53 ± 11 years) from the Campania Salute Network.
Objective: The aim of this study was to evaluate whether diabetes (DM) and impaired fasting glucose (IFG) were associated with early alterations in left ventricular geometry and function in a large population of adolescents and young adults independently of major confounders.
Research Design And Methods: We analyzed echocardiographic data of 1,624 14- to 39-year-old participants (mean age 26.6 ± 7.
Background: Left-ventricular hypertrophy (LVH) is a marker of organ damage in hypertension and helps stratifying cardiovascular risk. Initial left-ventricular mass (LVM) is also a predictor of progression to hypertension, independently of initial blood pressure (BP) and other confounders.
Objectives: To evaluate whether baseline LVM can influence BP control in treated hypertension.
Left ventricular (LV) mass (LVM) is the most important information requested in hypertensive patients referred for echocardiography. However, LV function also predicts cardiovascular (CV) risk independent of LVM. There is no evidence that addition of LV function significantly improves model prediction of CV risk compared with LVM alone.
View Article and Find Full Text PDFPrehypertension (defined by the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure) frequently evolves to hypertension (HTN) and increases cardiovascular risk. It is unclear whether metabolic and/or cardiac characteristics favor development of HTN in prehypertensive subjects. We evaluated baseline anthropometric, laboratory, and echocardiographic characteristics of 625 untreated prehypertensive participants in the Strong Heart Study, without prevalent cardiovascular disease (63% women; 22% with diabetes mellitus; mean age: 59+/-7 years) to identify predictors of the 4-year incidence of HTN.
View Article and Find Full Text PDFJ Cardiovasc Med (Hagerstown)
February 2008
Objective: Severe liver disease is associated with abnormalities in cardiac geometry and function. We aimed to assess the prevalence of these abnormalities and to determine if they represent an adaptation of the heart to the haemodynamic overload associated with liver dysfunction.
Methods: Seventy cirrhotic patients underwent standard Doppler echocardiography, as a screening evaluation for liver transplantation, and were compared with 70 normal subjects matched for age and sex.
Background: Left ventricular mass (LVM) exceeding needs to sustain haemodynamic load has been termed 'inappropriate left ventricular mass'. We hypothesized that inappropriate LVM identifies hypertensive patients with clustered cardiac geometric and functional abnormalities.
Methods: For this purpose, 359 hypertensive individuals without prevalent cardiovascular disease underwent Doppler echocardiography.