ArticleIndian pacing and electrophysiology journal
P wave oversensing and rate-related bundle branch block with T wave oversensing leading to inappropriate S-ICD therapies in cardiac sarcoidosis: A case report.
Article in Indian pacing and electrophysiology journal. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Subcutaneous implantable cardioverter defibrillators (S-ICDs) are increasingly implanted devices to prevent sudden cardiac death (SCD), whether as a primary or secondary prevention strategies especially in patients who are at risk of developing complications related to transvenous implantable cardioverter defibrillators (TV-ICDs) and without an indication for cardiac pacing. However, S-ICDs can deliver inappropriate shocks due to sensing abnormalities, despite the applied strategies to prevent this complication. We present a case of a 56-year-old patient with cardiac sarcoidosis who experienced inappropriate shocks due to T wave oversensing (TWOS) secondary to rate related aberrancy and P wave oversensing. To the best of our knowledge, this is the first reported case of inappropriate S-ICD therapy in cardiac sarcoidosis, which highlights the necessity of closely monitoring the patient to prevent sensing abnormalities as the pre-implant screening cannot accurately predict future QRS alterations that might lead to oversensing and inappropriate shocks.
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