Concealed His extrasystoles: A masquerader of atrioventricular block
Key result
Flecainide was an effective treatment for His extrasystoles in a 46-year-old female presenting with pseudo-Mobitz II AV block diagnosed on surface ECG.
Why the study?
Concealed His extrasystoles masquerade as atrioventricular (AV) block, making it necessary to consider pseudo-AV block in patients developing unexpected AV block without a clear etiology.
Population
One 46-year-old female patient with pseudo-Mobitz II AV block secondary to His extrasystoles
Design
Case report
Authors
Discussion
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Member takes
Implication
Flecainide may offer a noninvasive option for His extrasystoles causing pseudo-AV block; leaves open generalizability and need for prospective validation.
Study Design
Type
Case Report (n=1)
Structured PICO
P
Population
A 46-year-old female patient with pseudo-Mobitz II AV block secondary to His extrasystoles diagnosed on surface ECG.
I
Intervention
Flecainide
O
Outcome
Treatment efficacy for His extrasystoles
Concealed His extrasystoles can masquerade as AV block on surface ECG and may be effectively treated with flecainide without requiring an invasive electrophysiology study.
Cite This Study
Ho et al. (2022) conducted a case report in Concealed His extrasystoles / pseudo-Mobitz II AV block (n=1). Flecainide was evaluated on Treatment efficacy for His extrasystoles. Flecainide was an effective treatment for His extrasystoles in a 46-year-old female presenting with pseudo-Mobitz II AV block diagnosed on surface ECG.