July 1, 1987Catheterization and Cardiovascular Diagnosis
Optimal ECG monitoring during percutaneous transluminal coronary angioplasty of the left anterior descending artery
Key result
Lead V2 monitoring detects ~0.3 mV ST displacement during LAD occlusion, outperforming V5 and V6.
- P<0.01
Why the study?
Does ECG monitoring with surface lead V2 improve detection of ST segment displacement compared to V5 or V6 during PTCA of the left anterior descending artery?
Population
Patients undergoing percutaneous transluminal coronary angioplasty of the left anterior descending artery
Comparison
ECG monitoring using surface lead V2 vs ECG monitoring using surface leads V5 or V6
Design
Cohort
Follow-up
During procedure
Authors
Discussion
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Implication
May support V2 preference for LAD ischemia detection during angioplasty; hypothesis-generating for optimized ECG monitoring in catheterization labs.
Study Design
Type
Observational
Structured PICO
Does ECG monitoring with surface lead V2 improve detection of ST segment displacement compared to V5 or V6 during PTCA of the left anterior descending artery?
P
Population
Patients undergoing percutaneous transluminal coronary angioplasty (PTCA) of the left anterior descending artery
E
Exposure
ECG monitoring using surface lead V2
C
Comparator
ECG monitoring using surface leads V5 or V6
O
Outcome
ST segment displacement during coronary occlusionsurrogate
Main Result
Absolute Event Rate: 0.29% vs 0%
p-value: p=<0.01
Surface lead V2 is more sensitive than V5 or V6 for detecting ischemia during left anterior descending artery occlusion during PTCA.
Cite This Study
Feldman et al. (1987) conducted an observational in Percutaneous transluminal coronary angioplasty of the left anterior descending artery. Surface ECG lead V2 vs. Baseline / leads V5 or V6 was evaluated on ST segment displacement (p=<0.01). Monitoring with surface lead V2 during left anterior descending coronary occlusion detected a significant increase in ST displacement from 0.0 to 0.29 mV (p<0.01), outperforming leads V5 and V6.