Forty patients underwent a total of 41 balloon angioplasties
, with a total initial success rate of 48.8% (20 of 41 procedures).
While I wouldn't say that angioplasties
are "unnecessary," there are several very effective medications that physicians can prescribe before deciding to perform an angioplasty.
For more than 2 years, researchers led by Peter Moyer, who runs Boston's EMS operations, have been tracking how much time elapses between local 911 calls and resulting angioplasties
. They use the 90-minute guideline as a benchmark for their performance and usually "beat it by a good margin," Moyer says.
We undergo more than 500,000 heart bypass operations, almost 600,000 artery-opening angioplasties
, and over a million procedures to diagnose heart disease each year, at a cost of $70 billion.
- also known as PTCA - are less traumatic than bypass surgery, and involves the insertion of a small tube (stent) into the artery.
In addition, the use of renal/visceral arterial angioplasties
among cardiologists rose 229% between 1996 and 2000, while the use of those procedures among radiologists rose 54% over the same time period.
One year later, data show that those on the vitamin regimen were nearly 40 percent less likely to have needed repeat angioplasties
or heart bypass operations than those taking dummy pills.
Britain is also second from bottom of the table for performing coronary angioplasties
, a procedure to widen the arteries.
According to Dr Williams, Walsgrave carried out 1,422 angioplasties
from January to December 2000, of which 43 per cent were emergency or non-elective operations.
Figures for all patients undergoing angioplasties
at Walsgrave Hospital in Coventry showed a mortality rate of 3.1 per cent, compared with a UK average of 1.2 per cent.
Among the institutional variables noteworthy in their lack of effect upon door-to-balloon time were the presence or absence of a chest pain unit, in-house call team availability on a 24-hour, 7-day-a-week basis, and the volume of angioplasties
done at a medical center.
They are also testing compounds for their ability to inhibit restenosis II by performing angioplasties
on pigs and introducing the compound.
the study began during a time when stents were not the common accompaniments to angioplasties
that they are now, but Dr.