BACKGROUND Phosphodiesterase-5 inhibitors produce a significant decrease in pulmonary vascular resistance in patients with idiopathic pulmonary arterial hypertension. We studied the effects of tadalafil, a phosphodiesterase-5 inhibitor, on short-term hemodynamics, tolerability, and efficacy over a 12-week period in patients of Eisenmenger syndrome having a… (More)
Study of U waves exemplifies important clinical role of noninvasive electrocardiography in modern cardiology. Present article highlights significance of U waves with a clinical case and also summarizes in brief the history of the same.
Umbilical venous catheterization is a necessity for the advanced care of very low birth weight neonates. Even with utmost care, few complications cannot be avoided. Fractured and retained catheter fragments are one of them. Endoluminal retrieval of such a catheter is an uncommon and challenging procedure for the interventionist. The only alternative is an… (More)
We describe an uncommon case of typical flutter with symptomatic sinus node dysfunction, in which a permanent junctional rhythm developed following ablation of the cavo-tricuspid isthmus. This rhythm activated the right atrium in counter clockwise manner thus providing spontaneous proof of unidirectional isthmus block, a phenomenon that is usually… (More)
Transaction processing is the common theme forpapers in this issue. The automatic teller machine on our cover represents one of the many businesses that rely on TP systems. If we could look behind the familiar machine, we would see the products and technologies-here symbolized by linked databases-that support reliable and speedyprocessing of transactions… (More)
A cardiac hydatid cyst is rare. We report a case of cardiac hydatid cyst localized in the atria which was diagnosed by two-dimensional echocardiography following a thromboembolic stroke. Surgical resection of the cyst was performed and histopathologic examination confirmed the diagnosis.