Mohammad Shenasa1, Shahriar Heidary2, Hossein Shenasa2. 1. Heart & Rhythm Medical Group, San Jose, CA 95128, USA; O'Connor Hospital, San Jose, CA 95128, USA. Electronic address: mohammad.shenasa@gmail.com. 2. Heart & Rhythm Medical Group, San Jose, CA 95128, USA; O'Connor Hospital, San Jose, CA 95128, USA.
Abstract
BACKGROUND: A 72-year-old white male with a history of rapid nonsustained ventricular tachycardia, hypertrophic cardiomyopathy, and intermittent Brugada-type ECG had a single-lead implantable cardioverter-defibrillator (ICD) implantation and received a sudden ICD shock while in the hot tub. To the best of our knowledge this is the first case report of hot tub jet-induced inappropriate ICD shock. METHODS: ICD interrogation and analysis of intracardiac electrograms and event markers. RESULTS: ICD interrogation revealed inappropriate ICD shocks due to electrical interference of hot tub engine; 60-cycle electrical artifact mimicking fast ventricular fibrillation erroneously detected by the device. The device then delivered a 34.8 joules shock while the patient was actually in sinus rhythm. CONCLUSIONS: Electrical interference due to external sources such as hot tub engines may occur and produce an inappropriate detection and ICD shock. Precaution and patient education is warranted.
BACKGROUND: A 72-year-old white male with a history of rapid nonsustained ventricular tachycardia, hypertrophic cardiomyopathy, and intermittent Brugada-type ECG had a single-lead implantable cardioverter-defibrillator (ICD) implantation and received a sudden ICD shock while in the hot tub. To the best of our knowledge this is the first case report of hot tub jet-induced inappropriate ICD shock. METHODS: ICD interrogation and analysis of intracardiac electrograms and event markers. RESULTS: ICD interrogation revealed inappropriate ICD shocks due to electrical interference of hot tub engine; 60-cycle electrical artifact mimicking fast ventricular fibrillation erroneously detected by the device. The device then delivered a 34.8 joules shock while the patient was actually in sinus rhythm. CONCLUSIONS: Electrical interference due to external sources such as hot tub engines may occur and produce an inappropriate detection and ICD shock. Precaution and patient education is warranted.
Authors: Milos D Babic; Milosav Tomovic; Maja Milosevic; Branko Djurdjevic; Vasko Zugic; Aleksandra Nikolic Journal: Ann Noninvasive Electrocardiol Date: 2022-04-25 Impact factor: 1.485