Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Myocardial Ischemia Caused by Distal Coronary-Artery Constriction in Stable Angina Pectoris
Ist Teil von
The New England journal of medicine, 1990-08, Vol.323 (8), p.514-520
Ort / Verlag
Boston, MA: Massachusetts Medical Society
Erscheinungsjahr
1990
Quelle
MEDLINE
Beschreibungen/Notizen
IN patients with chronic stable angina, several studies
1
2
3
4
have shown that many episodes of ST-segment depression during daily life are not preceded by an increase in heart rate, or occur at a heart rate much lower than that required to trigger myocardial ischemia during exercise (or both). Because changes in caliber at the site of critical or subcritical coronary stenoses have been documented angiographically in response to exercise,
5
,
6
vasodilators,
7
,
8
and vasoconstrictors,
9
the variability of the ischemic threshold that is frequently observed in patients with stable angina is often attributed to such changes. However, a recent detailed postmortem study
10
suggested that . . .