Isaac George

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BACKGROUND Skeletal muscle dysfunction in patients with heart failure (HF) has been linked to impaired growth hormone (GH)/insulin-like growth factor (IGF)-1 signaling. We hypothesized that ventricular assist device (VAD) implantation reverses GH/IGF-1 axis dysfunction and improves muscle metabolism in HF. METHODS Blood and rectus abdominis muscle samples(More)
OBJECTIVES (1) To examine the interaction of donor age with ischemic time and their effect on survival and (2) to define ranges of ischemic time associated with differences in survival. METHODS The United Network for Organ Sharing provided de-identified patient-level data. The study population included 33,640 recipients undergoing heart transplantation(More)
BACKGROUND Myostatin is a negative regulator of skeletal muscle mass whose activity is upregulated in adult heart failure (HF); however, its role in congenital heart disease (CHD) is unknown. METHODS We studied myostatin and IGF-1 expression via Western blot in cardiac tissue at varying degrees of myocardial dysfunction and after biventricular support in(More)
A 65-year-old Caucasian man was admitted to the Cardiothoracic Department for elec-tive coronary artery bypass graft (CABG). At pre-operative bidimensional transtho-racic echocardiography (TTE), a narrowing of the ascending aorta was observed: the inner lumen was reduced by a circum-ferential, bulky ridge of tissue projecting from the aortic wall and(More)
OBJECTIVE Del Nido (DN) cardioplegia solution provides a depolarized hyperkalemic arrest lasting up to 60 minutes, and the addition of lidocaine may limit intracellular calcium influx. Single-dose DN cardioplegia solution may offer an alternative myocardial protection strategy to multi-dose cold whole blood (WB) cardioplegia following acute myocardial(More)
BACKGROUND Galectin-3 is a marker of myocardial inflammation and fibrosis shown to correlate with morbidity and mortality in heart failure (HF). We examined the utility of galectin-3 as a marker of the severity of HF, the response of galectin-3 levels to ventricular assist device (LVAD) implantation or heart transplantation (HTx), and its use as a(More)
BACKGROUND Del Nido (DN) cardioplegia, a calcium-free, hyperkalemic solution containing lidocaine and magnesium has been developed to help reduce intracellular calcium influx and the resulting myocyte damage in the immediate postischemic period following cardiac arrest. DN cardioplegia has been used for pediatric cardiac surgery but its use in complex(More)
The names of the authors Kennel and Schulze were rendered wrongly in the original publication. Their correct names are as given here.
We aim to develop a rat model of veno-arterial extracorporeal membrane oxygenation (VA-ECMO). VA-ECMO was established in twelve Male Sprague-Dawley rats (250-350 g) through cannulation of the right jugular vein for venous drainage and the right femoral artery for arterial reinfusion. Arterial blood pressure was measured using a conductance catheter through(More)
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