Key result
Programming ICD first-shock strength based on the upper limit of vulnerability (ULV + 5 J) successfully converted 99% of spontaneous ventricular arrhythmias (95% CI, 93-100%).
Why the study?
Does programming ICDs based on the upper limit of vulnerability (ULV) reliably convert spontaneous ICD-detected VF in patients receiving ICDs?
Observational (n=100)
Does programming ICDs based on the upper limit of vulnerability (ULV) reliably convert spontaneous ICD-detected VF in patients receiving ICDs?
Programming ICD shocks based on the upper limit of vulnerability is highly effective for converting spontaneous ventricular arrhythmias, potentially avoiding the need for direct defibrillation threshold testing.
No takes yet. Share an insight, caveat, or question.
May support avoiding defibrillation threshold testing with ULV-guided ICD programming; hypothesis-generating and requires randomized confirmation.
Swerdlow et al. (1997) conducted an observational in Patients requiring implantable cardioverter-defibrillators (n=100). ICD programming based on the upper limit of vulnerability was evaluated on Success rate for appropriate first shocks (95% CI 93-100). Programming ICD first-shock strength based on the upper limit of vulnerability (ULV + 5 J) successfully converted 99% of spontaneous ventricular arrhythmias (95% CI, 93-100%).
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