The results of the Spanish Registry of Hemodynamic and Interventional Cardi
ology in 1997 are presented. The Registry collects the activity of 83 cente
rs which constitute all the cardiac catheterization laboratories In Spain.
The main activity was adult cardiac catheterization in 75 centers and exclu
sively pediatric cardiac catheterization in 8.
A total of 72,370 diagnostic catheterization procedures, 80% coronary angio
graphies (57,960; 1,462 per million inhabitants), were performed which repr
esents a 13% total increase compared to 1996.
Coronary intervention increased by 23% compared to 1996, for a total number
of 18,545 procedures. The ratio of coronary interventions per million inha
bitants was 468. Success rates of coronary interventions (91.3%) and compli
cations (3.7%) were similar to those registered in previous years.
In the specific field of revascularization devices, there has been a dramat
ic increase in the use of stents. In 1997, coronary stents were employed in
11,417 cases (a 61% increase compared to 1996) which represents 61.5% of a
ll coronary revascularizations procedures. A total of 14,170 prosthesis wer
e implanted, 72% in a elective way, with a low rate of complications (0.95%
subacute closure; 1.45% myocardial infarction and 0.75% mortality).
Compared to 1996, directional coronary atherectomy (92 procedures) showed a
slight decrease, whereas rotational atherectomy (554 procedures) increased
by 49% with double the number of centers performing this technique.
As in previous years, a slight decrease (7% compared to 1996) in adult valv
uloplasties (559 vs 599) was noted. Pediatric interventional procedures dec
reased by 17% (465 vs 558 procedures) compared to the 1996 Registry.