The progression of tricuspid regurgitation: it seems capricious, or are we just too ignorant to understand it?

Restenosis: do we need to understand it to treat it?

Restenosis has been the major therapeutic challenge of interventional cardiology over the past two decades. Andreas Grüentzig reported that restenosis occurred in 30% of his initial patient population (1). Since then, the number of patients developing restenosis has increased, largely because of the treatment of more complex cases. In the early to mid-1990s, coronary stents were introduced, and...

Contractile reserve: are we beginning to understand it?

The concept of contractile reserve is an old idea garnered from observations made by many investigators over the years. Various techniques have been used to study left ventricular (LV) performance in either the true failing heart or the heart with impaired systolic function, including post-systolic accentuation, epinephrine ventriculography, and various hemodynamic and echocardiographic respons...

Just don't do it! Are we teaching our kids way too much about sex? Or not nearly enough?

JUST DON'T DO IT! (cover story). By: Kelly, Katy. U.S. News & World Report. 10/17/2005, Vol. 139 Issue 14, p44-51. 8p. 7 Color Photographs. Abstract: Offers a discussion about whether children are learning too much or not enough about sex. Emphasis of some schools on abstinence-only sexual education programs; Reference to the book "Sex & Sensibility: The Thinking Parent's Guide," by Deborah Rof...

Ubiquitous Computing: Shall we Understand It?

Pervasive or ubiquitous computing has become an aspiration of the computing community in the last 15 years. Its vision, pioneered by Mark Weiser [1], is that populations of computing entities—hardware and software—will become an effective part of our environment, performing tasks that support our broad purposes without our continual direction, thus allowing us to be largely unaware of them. The...

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