TY - JOUR
TI - Exercise-induced ST-segment changes in lead V-1 identify the
significantly narrowed coronary artery in patients with single-vessel
disease - Correlation with thallium-201 scintigraphy and coronary
arteriography data
AU - Michaelides, AP
AU - Psomadaki, ZD
AU - Richter, DJ
AU - Dilaveris, PE and
AU - Andrikopoulos, GK
AU - Kakaidis, S
AU - Stefanadis, C
AU - Gialafos, JE and
AU - Toutouzas, PK
JO - Journal of Electrocardiology
PY - 1999
VL - 32
TODO - 1
SP - 7-14
PB - CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
SN - 0022-0736, 1532-8430
TODO - 10.1016/S0022-0736(99)90016-X
TODO - exercise testing; ST-segment changes; lead V-1; coronary; artery disease
TODO - We investigated the correlation of exercise-induced ST-segment changes
in lead V-1, with the detection of the significantly narrowed vessel
that induced ischemia during exercise in myocardial areas supplied by
this vessel. We studied 198 patients who underwent exercise testing,
thallium-201 scintigraphy, and coronary arteriography. The patients were
divided into three groups. In group 1 (ST-segment elevation in lead
V-1), 84% had left anterior descending coronary artery disease (P <
.001); in group 2 (ST-segment depression in lead V-1), 76% had right
coronary artery disease (P < .001); and in group 3 (no ST-segment
changes in lead V-1), there were no significant differences concerning
the narrowed vessel. Thallium-201 scintigraphy data confirmed the
existence of the reversible perfusion defect(s) in an area(s) of
myocardium supplied by the respective coronary arteries (P < .001).
Exercise-induced ST-segment elevation or depresssion in V-1 may identify
the obstructed vessel in patients with single-vessel disease and without
prior myocardial infarction.
ER -