December 17, 2012Pacing and Clinical Electrophysiology

Feasibility of Heart Sounds Measurements from an Accelerometer within an ICD Pulse Generator

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Why the study?

Does an accelerometer sensor enclosed within an ICD pulse generator detect heart sounds in heart failure patients and normal subjects?

Population

40 subjects (30 heart failure patients with audible third heart sound and 10 normal subjects without history…

Comparison

Accelerometer circuitry enhanced for heart… vs Lightweight reference accelerometer taped over…

Design

Other

Follow-up

2 minutes

Authors

KSKrzysztof Z. SiejkoBoston Scientific (United States)PTPramodsingh H. ThakurBoston Scientific (United States)KMKeith MaileBoston Scientific (United States)

Discussion

Member takes

Implication

May enable ICD-based heart sound monitoring; hypothesis-generating for heart failure applications, pending validation trials.

Structured PICO

Does an accelerometer sensor enclosed within an ICD pulse generator detect heart sounds in heart failure patients and normal subjects?

Population

40 subjects (30 heart failure patients with audible third heart sound (S3) and 10 normal subjects without history of cardiac disease)

Intervention

Accelerometer circuitry enhanced for heart sounds incorporated into non-functional ICDs, taped to the skin surface over left and right pectoral regions to simulate subcutaneous implants

Comparator

Lightweight reference accelerometer taped over the cardiac apex

Outcome

Detection of heart sounds (HS) and HS time intervals (HSTIs)surrogate

Heart sounds, including S3 amplitude and time intervals, can be feasibly measured using accelerometer circuitry embedded in an ICD pulse generator at implant sites.

Cite This Study

Siejko et al. (2012) studied this question.

synapsesocial.com/papers/6a712b962163a0a01bc5573d https://doi.org/10.1111/pace.12059

Topics

Cardiac device therapy

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