Key result
Propranolol permanently converts repetitive tachycardia to sinus rhythm, while exercise and amyl nitrite act transiently.
Why the study?
Do exercise tests, amyl nitrite, or propranolol affect the rhythm in patients with repetitive tachycardia?
Case Report (n=6)
Do exercise tests, amyl nitrite, or propranolol affect the rhythm in patients with repetitive tachycardia?
Exercise, amyl nitrite, and propranolol can restore sinus rhythm in patients with repetitive tachycardia, suggesting potential mechanisms and therapeutic options.
No takes yet. Share an insight, caveat, or question.
May support autonomic modulation for repetitive tachycardia; hypothesis-generating and should not yet change practice.
Kariv et al. (1971) conducted a case report in Repetitive tachycardia (n=6). Exercise tests, amyl nitrite, and propranolol was evaluated on Rhythm conversion to sinus rhythm. Exercise tests and amyl nitrite transiently converted repetitive tachycardia to sinus rhythm, while propranolol restored permanent sinus rhythm in 2 treated patients.
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