Why the study?
Do plasma TCA levels or QRS duration predict major medical complications in patients with TCA overdose better than history of ingestion?
Population
n=40 consecutively hospitalized patients who had overdosed primarily with a tricyclic antidepressant (TCA)
Comparison
Serial measurements of plasma TCA levels and… vs Amount of drug ingested by history
Design
Cohort
Follow-up
until discharge
Authors
Loading...
QRS ≥100 ms may identify major TCA overdose risk without plasma levels; supports ECG triage but leaves open prospective validation vs. other predictors.
Do plasma TCA levels or QRS duration predict major medical complications in patients with TCA overdose better than history of ingestion?
A QRS duration of 100 msec or more on a routine ECG within the first 24 hours is a reliable, easily accessible marker for identifying patients at risk for major medical complications following TCA overdose.
John T. Biggs (1977) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: