Diaphragmatic Myopotential Oversensing Caused by Change in Implantable Cardioverter Defibrillator Sensing Bandpass Filter

Ploux, Sylvain; Swerdlow, Charles D.; Eschalier, Romain; Monteil, Benjamin; Ouali, Sana; Haı̈ssaguerre, Michel; Bordachar, Pierre

doi:10.1111/pace.12837

Cited by 9 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…LFA filters are a strategic programming feature of contemporary Abbott devices that have defibrillator capability (3). The primary objective of this filter is to mitigate sequelae arising from T wave oversensing, i.e.…”

Section: Discussionmentioning

confidence: 99%

Low-frequency attenuation filter as a reversible cause of inappropriate shocks due to myopotential oversensing

Patel

Nadarajah

Straw

et al. 2021

HeartRhythm Case Reports

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Section: Discussionmentioning

confidence: 99%

Low-frequency attenuation filter as a reversible cause of inappropriate shocks due to myopotential oversensing

Patel

Nadarajah

Straw

et al. 2021

HeartRhythm Case Reports

View full text Add to dashboard Cite

show abstract

“…Ploux et al reported seven cases of patients with St. Jude Medical (now Abbott) ICDs and dedicated bipolar sensing configuration. In these patients, dMPO could be eliminated by switching off the nominally activated low‐frequency attenuation filter (LFA) . This filter is designed to minimize T‐wave oversensing by raising the high‐pass filter threshold.…”

Section: Discussionmentioning

confidence: 99%

High incidence of diaphragmatic myopotential oversensing by a specific implantable cardioverter defibrillator

Baldinger

Haeberlin

Servatius

et al. 2019

Pacing Clinical Electrophis

View full text Add to dashboard Cite

Introduction Diaphragmatic myopotential oversensing (dMPO) by implantable cardioverter defibrillators (ICDs) is thought to be a rare condition that can be misdiagnosed as lead failure and lead to unnecessary lead replacement. We observed several cases of dMPO in patients with Sorin/LivaNova ICDs (MicroPort Sci.). We sought to systematically assess the incidence of dMPO in patients with Sorin/LivaNova ICDs. Methods and Results A predefined number of 100 consecutive patients with Sorin/LivaNova ICDs were prospectively included in the device clinic of our center. Stored arrhythmia episodes were checked for spontaneous dMPO. In addition, we performed provocation maneuvers by Valsalva. At least one episode of spontaneous or provoked dMPO was seen in 12 (12%) of the 100 patients included in the study (86% males, median age: 66 years). Nine of 89 patients (10%) with true bipolar and 3 of 11 patients (27%) with integrated bipolar sensing configuration were affected. Spontaneous dMPO was observed in 7 of 58 patients (12%) with sensitivity programmed to 0.4 mV and in 2 of 42 patients (5%) with sensitivity programmed to 0.6 mV (not significant). In three patients, dMPO could be provoked with no spontaneous episodes recorded. In two nonpacemaker‐dependent patients with a CRT‐D, ventricular pacing was temporarily inhibited. No antitachycardia therapy was triggered by dMPO in any patient. Conclusions DMPO is frequent in patients with Sorin/LivaNova ICDs, especially with sensitivity programmed to 0.4 mV. It also frequently occurs with true bipolar sensing configuration. DMPO should not be misinterpreted as lead failure to avoid unnecessary lead replacement.

show abstract

“…Third, most inappropriate therapy with ICD is due to T‐wave oversensing. However, although uncommon, inappropriate operation of the ICD due to myopotential oversensing has also been reported . Since the frequency targeted by SP is the T wave, inappropriate operation from myopotentials cannot be prevented by SP.…”

Section: Discussionmentioning

confidence: 99%

SMART pass will prevent inappropriate operation of S‐ICD

Tachibana

Nishii

Banba

et al. 2018

Journal of Arrhythmia

View full text Add to dashboard Cite

BackgroundCompared to screening ECG before implantation of a subcutaneous implantable cardioverter‐defibrillator (S‐ICD), selectable vectors without T‐wave oversensing increase after S‐ICD implantation. Newer algorithms have recently become available to reduce T‐wave oversensing, such as SMART pass (SP). With this function, more selectable vectors are identified after S‐ICD implantation. However, this improvement in eligibility utilizing SP has not yet been well validated. We aimed to clarify S‐ICD eligibility before and after S‐ICD implantation with and without SP.MethodsParticipants comprised 34 patients implanted with an S‐ICD at Okayama University Hospital and its affiliated hospitals between February 2016 and August 2017. A total of 102 S‐ICD vectors were assessed for eligibility before and after S‐ICD implantation, at rest and during exercise testing. Vector availability was evaluated in the presence and absence of SP after S‐ICD implantation.ResultsSubcutaneous implantable cardioverter‐defibrillator eligibility was significantly better after implantation even without SP than S‐ICD screening before S‐ICD implantation, both at rest (before 65.7% vs after 95.1%, P < 0.01) and during exercise (before 59.3% vs after 90.6%, P < 0.01). SP improved S‐ICD eligibility during exercise (SP on 97.9% vs off 90.6%, P = 0.03). Multivariate analysis showed the prevalence of S‐ICD eligibility increased significantly after S‐ICD implantation compared to screening before implantation. SP further increased selectable vectors in multivariate analysis.ConclusionAvailable vectors increased significantly after S‐ICD implantation compared to preoperative vectors as assessed by S‐ICD screening ECG. T‐wave oversensing during exercise has been an unresolved issue for S‐ICD, but SP will help prevent inappropriate operation with S‐ICD.

show abstract

Diaphragmatic Myopotential Oversensing Caused by Change in Implantable Cardioverter Defibrillator Sensing Bandpass Filter

Cited by 9 publications

References 12 publications

Low-frequency attenuation filter as a reversible cause of inappropriate shocks due to myopotential oversensing

Low-frequency attenuation filter as a reversible cause of inappropriate shocks due to myopotential oversensing

High incidence of diaphragmatic myopotential oversensing by a specific implantable cardioverter defibrillator

SMART pass will prevent inappropriate operation of S‐ICD

Contact Info

Product

Resources

About