Showing papers in "Canadian Journal of Cardiology in 1997"

TL;DR: Lipomatous metaplasia of scar is often associated with severe heart failure and is more frequent and extensive in ischemic heart disease.

TL;DR: The results suggest that the negative consequences of partial compliance for blood pressure control can be offset by choosing agents with a duration of action well beyond the dosing interval.

TL;DR: Angiographic coronary artery disease progression may be prevented by adequate thyroid replacement in hypothyroidism, and with the help of modern, sensitive thyroid stimulating hormone assays higher doses of L-thyroxine may be safer and more effective in the atherosclerosis management of this patient population.

TL;DR: Adults with congenital heart disease have poor knowledge of their heart defects and the importance of endocarditis and antibiotic prophylaxis, and patient education should be a part of every clinic visit.

TL;DR: Prospective epidemiological investigations suggest a reduction in cardiovascular risk associated with increased intake of antioxidant vitamins, particularly vitamin E, while Randomized clinical trials remain inconclusive with regard to the role of vitamin E in cardiovascular protection.

TL;DR: In this article, several different clinical syndromes of electrical storm and the management of each are examined.

TL;DR: The findings from this study will be used to design a large scale mortality study that will help further define the role of neurohormonal blockade in patients with CHF.

TL;DR: There is ample evidence that oxidative stress is involved in the pathogenesis of atherosclerosis, endothelial dysfunction, platelet aggregation and heart failure, but the extrapolation of this evidence to the use of antioxidant therapy in primary or secondary prevention of cardiovascular disease cannot be justified at this time.

TL;DR: Current cardiac x-ray equipment, possible future developments, radiation, and techniques for reducing radiation and improving safety in the cardiac catheterization laboratory are discussed.

TL;DR: A simple checklist can be very easily applied, has extremely high sensitivity for confirming the presence of AMI, and identifies a clinically significant proportion of charts with false positive codes for AMI.

TL;DR: Intrinsic cardiac adrenergic neurons receive tonic inputs via beta-, but not alpha-, adrenoceptors, which indicates that adrenergic blockade may affect cardiac function, in part, via modification of the intrinsic cardiac nervous system.

TL;DR: In this selected population, HDL and lipoprotein are the best metabolic markers of premature CAD; metabolic factor clustering is common in patients with premature CAD and the clustering of risk factors may be the best predictor of risk.

TL;DR: There is evidence to suggest that QOL improves after heart transplantation, and that improvement is relatively stable over time, and further work is needed to identify the factors that could result in improvements in QOL.

TL;DR: The acute management of supraventricular tachycardias as they present in the emergency department is discussed, based on the underlying electrophysiological principles of arrhythmias.

TL;DR: Treatment with lisinopril indicates some reduction in the severity of chronic moderate MR in asymptomatic patients with normal left ventricular function, but side effects are not uncommon, warranting regular follow-up.

TL;DR: A body of clinical experience has begun to accumulate that is suggestive of an association between IVIg administration and cardiac and cerebral ischemia in older individuals or individuals with a known history of ischemic disease.

TL;DR: The margin between expected benefit and harm for warfarin prophylaxis in patients with CNVAF is uncomfortably thin and these results and conclusions differ from those of a previously published meta-analysis of these same studies.

TL;DR: Probucol did not decrease the myocardial oxysterol content at the dose used in this study, suggesting that the increase in oxysterols may not be attributed to high circulating concentrations of lipids, but rather to disturbedMyocardial metabolism due to insulin deficiency.

TL;DR: Despite severe cardiovascular and often urgent conditions, sustained functional improvement and good long term survival can be objectively documented in most elderly patients after cardiac surgery.

TL;DR: Initial experiments demonstrate that ventricular activation can be identified and its conduction pattern can be monitored reproducibly and with high resolution for extended time periods during spontaneous activity.

TL;DR: From 1976 to 1991, mortality rates for ischemic heart disease in Canada decreased sharply, suggesting that advancements observed in clinical trials are being translated to the population level.

TL;DR: ACE inhibition suppresses the temporal increase in IZ collagen and attenuates IZ expansion, thinning and bulging, and LV enlargement and aneurysm formation during healing after MI.

TL;DR: The adverse cardiovascular effects of psychotropic medications in therapeutic doses are a valid concern for cardiologists and Familiarity with these drugs and their interactions is essential to avoid important undesired reactions with potential fatal consequences.

TL;DR: Three patients referred for suspicion of intracardiac tumour on transthoracic echocardiography performed did not reveal a tumour but rather a fibrous band in the right atrium, extending from the inferior to the superior vena cava, consistent with remnants of the right valve of the sinus venosus.

TL;DR: It is demonstrated that endogenous nitric oxide is involved in the muscarinic cholinergic attenuation of ICa-L in AV nodal cells; the mechanism likely involves the cGMP-stimulated phosphodiesterase.

TL;DR: The size of cardiac rhabdomyomas must be carefully followed when patients are treated with corticotropin, as increase in size of some of the tumours was found during corticotropic therapy on follow-up echocardiography.

TL;DR: All four cases demonstrated that the 12-lead electrocardiogram, with markedly prolonged QT intervals and increased QT dispersion, could have been used to predict pro-arrhythmia.

TL;DR: Investigation of the effects of derivatives of sex steroid hormones and of some of their antagonists on junctional communication in pairs of cultured ventricular myocytes of neonatal rats found lipophilic molecules with an appropriate molecular skeleton could insert into the membrane, with resulting destabilization and unspecific closure of membrane channels.

TL;DR: When the aortic valve is replaced promptly at symptom onset, despite improvement in resting left ventricular systolic performance, there is no evidence of improvement in exercise capacity or functional status.

TL;DR: Clinicians must be aware of potential life-threatening complications associated with its use and monitor appropriately, as the use of ticlopidine increases.