Prognostic endpoint yield of high-level versus low-level graded exercise testing
Deutscher übersetzter Titel: | Aussagekraft von Belastungstests mit ansteigender Belastung auf hohem versus niedrigem Niveau hinsichtlich der prognostisch bedeutsamen Abbruchkriterien |
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Autor: | Hamm, Larry F.; Stull, G.Alan; Serfass, Robert C.; Ainsworth, Barbara |
Erschienen in: | Archives of physical medicine and rehabilitation |
Veröffentlicht: | 69 (1988), 2, S. 86-89, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0003-9993, 1532-821X |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU198807008091 |
Quelle: | BISp |
Abstract
The prognostic endpoint yield (PEY) of a low-level (</= 4.6 METS) vs a high-leve graded exercise test administered soon after myocardial infarction was evaluated with 184 patients. Test endpoints considered prognostically significant for future cardiac events were (1) ST segment depression >/= 1mm, (2) angina pectoris, and (3) complex ventricular beats. Test endpoints were assigned to both low-level and high-level tests if they occurred </= 4.6 METS; test endpoints > 4.6 METS were assigned to the high-level test only. Allowing the 145 patients who were asymptomatic during the low-level test to continue into the high-level protocol revealed a 2.5 times greater occurrence of angina pectoris (38 vs 15), a 3.4 times greater occurrence of ST segment depression (27 vs 8) twice the occurrences of ventricular beats (4 vs 2). This substantial increase in prognostic endpoint yield was demonstrated in the presence of a significantly longer exercise time with the high-level test (9.0 vs 5.1 min), with no significant difference between protocols for peak heart rate or systolic blood pressure. Therefore, a high-level graded exercise test appears to increase the yield of test endpoints with known prognostic importance. Verf.-Referat