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OBJECTIVES The goal of this study was to identify the factors responsible for embolic complications of direct current (DC) cardioversion of atrial arrhythmias. BACKGROUND Direct current cardioversion of atrial fibrillation (AF) carries a risk of thromboembolism, which is reduced, but not eliminated, by anticoagulation. The risk of embolism after… (More)
Advances in the understanding of nitric oxide as a biological mediator and a therapeutic tool continue to accumulate at a rapid rate. This review provides an update on recent developments pertinent to the role of nitric oxide in adult lung disease. After a brief review of basic nitric oxide biochemistry and physiology, the evidence supporting the role of… (More)
In a young woman with primary pulmonary hypertension, treatment with low-dose nifedipine resulted in resolution of symptoms and of tricuspid regurgitation. On withdrawal of nifedipine, symptomatic pulmonary hypertension recurred within 48 hours and was controlled by reintroduction of low-dose nifedipine.