What is the clinical evidence from this study?

Study design: Observational. Population: Recurrent sustained or non-sustained ventricular tachycardia (n=21). Intervention: Intravenous antiarrhythmic drugs. Primary outcome: Prevention of ventricular tachycardia initiation.

What question did this study set out to answer?

This research aims to evaluate the effectiveness of various antiarrhythmic drugs in patients with recurrent ventricular tachycardia (VT).

January 1, 1983Japanese Circulation JournalOpen Access

Availability of electrophysiological approach to the selection and assessment of antiarrhythmic drugs for recurrent ventricular tachycardia.

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Key result

Serial electrophysiological-pharmacological testing showed variable efficacy of antiarrhythmic drugs, with procainamide preventing VT initiation in 57% of cases.

Why the study?

Does serial electrophysiological-pharmacological testing predict the effectiveness of antiarrhythmic drugs in preventing recurrent ventricular tachycardia?

Key Points

This research aims to evaluate the effectiveness of various antiarrhythmic drugs in patients with recurrent ventricular tachycardia (VT).
Conducted electrophysiological-pharmacological studies on 21 patients with recurrent VT.
Induced VT using programmed electrical stimulation and evaluated the efficacy of antiarrhythmic drugs administered intravenously.
Analyzed the correlation between different antiarrhythmic drugs and their effects on VT initiation and termination.
Procainamide was effective in preventing VT initiation in 57% of patients, disopyramide in 50%, and mexiletine in 40%.
Lidocaine, propranolol, and verapamil failed to prevent VT in several patients.
Combination regimens showed variable and unpredictable effects in patients.

Study Design

Type

Observational (n=21)

Structured PICO

Does serial electrophysiological-pharmacological testing predict the effectiveness of antiarrhythmic drugs in preventing recurrent ventricular tachycardia?

Population

21 patients with recurrent sustained or non-sustained ventricular tachycardia undergoing serial electrophysiological-pharmacological studies.

Intervention

Intravenous administration of antiarrhythmic drugs (procainamide, disopyramide, mexiletine, lidocaine, propranolol, verapamil, quinidine) during electrophysiological study

Outcome

Prevention of initiation of ventricular tachycardia during programmed electrical stimulationsurrogate

Serial electrophysiological-pharmacological testing provides a rapid prediction of the effectiveness and deleterious effects of antiarrhythmic drugs in patients with recurrent sustained VT.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Should not yet change VT management; leaves open whether serial testing reliably predicts antiarrhythmic efficacy.

Cite This Study

Kasanuki et al. (1983) conducted an observational in Recurrent sustained or non-sustained ventricular tachycardia (n=21). Intravenous antiarrhythmic drugs was evaluated on Prevention of ventricular tachycardia initiation. Serial electrophysiological-pharmacological testing showed variable efficacy of antiarrhythmic drugs, with procainamide preventing VT initiation in 57% of cases.

synapsesocial.com/papers/6a22f292816bec650460d663 https://doi.org/10.1253/jcj.47.105

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Availability of electrophysiological approach to the selection and assessment of antiarrhythmic drugs for recurrent ventricular tachycardia.

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Availability of electrophysiological approach to the selection and assessment of antiarrhythmic drugs for recurrent ventricular tachycardia.

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider