Reduce Ventricular Pacing in Dual Chamber Implantable Cardioverter Defibrillators Using AutoIntrinsic Conduction Search Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

157 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-07-31

Study Completion Date

2007-08-31

Brief Summary

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The purpose of this study is to determine if patients implanted with a St. Jude Medical (SJM) implantable cardioverter defibrillator (ICD) will benefit by using AutoIntrinsic Conduction Search (AICS) rather than only a programmed AV/PV delay. This study will compare the two methods of programming with respect to intrinsic activity.

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Detailed Description

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Conditions

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Arrhythmia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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AICS On

Patients in this arm have Autointrinsic conduction search programmed ON.

Group Type ACTIVE_COMPARATOR

Autointrinsic Conduction Search Algorithm

Intervention Type DEVICE

Autointrinsic conduction search is programmed on in those patients randomized to AICS ON.

AICS Off

Patients assigned to this arm do not have Autointrinsic Conduction Search programmed on.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Autointrinsic Conduction Search Algorithm

Autointrinsic conduction search is programmed on in those patients randomized to AICS ON.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patient has been implanted with a dual chamber SJM ICD with AICS for 1 month (± 2 weeks).
* At the time of enrollment, patient is paced in the right ventricle (RV) ≤25% of the time as determined by the device diagnostics.
* Patient is medically stable.

Exclusion Criteria

* Patient has evidence of atrioventricular (AV) block (first, second or third degree) such that ventricular pacing would be required as part of the patient's routine management
* Patient is unable to comply with the follow-up visits due to geographical, psychological, or any other reasons.
* Patient is younger than 18 years of age.
* Patient is pregnant.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No