Correlation of SOZO BIS Measures With CardioMEMS PA Pressure

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

Total Enrollment

3 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-08-29

Study Completion Date

2019-06-25

Brief Summary

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This study aims to establish the degree to which change in the ratio of ECF to TBW measured using the SOZO BIS device correlates with change in end-expiratory end-diastolic PAP measured using the CardioMEMS HF System (St. Jude Medical).

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Detailed Description

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This is a prospective, single-arm, observational, non-randomized clinical study that will enroll patients with heart failure who have had a CardioMEMS™ device implanted to monitor their diastolic pulmonary artery pressure. The study will recruit and enroll thirty participants. Participants will be monitored daily at home for a period of 30 days. Each day, the patient's diastolic pulmonary artery pressure will be measured by CardioMEMS™ and the ImpediMed's BIS technology. Participant's weight will also be taken each day.

Conditions

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NYHA Class III Heart Failure

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Single-arm

All subjects enrolled will undergo measurements with the SOZO device daily for 30 days.

SOZO

Intervention Type DEVICE

The SOZO device is a bioimpedance spectroscopy device that measures bioimpedance parameters.

Interventions

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SOZO

The SOZO device is a bioimpedance spectroscopy device that measures bioimpedance parameters.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Age 18 years or older.
2. NYHA Class III HF.
3. Patient has undergone implantation of CardioMEMS HF System (St. Jude Medical).
4. Patient is characterized by at least one of the following:

* CardioMEMS implanted within the previous 90 days
* Received treatment with intravenous diuretics within the previous 30 days
* Received dose escalation of oral diuretics at least twice within the previous 30 days
5. Patient is able to sit upright for BIS measurements.
6. Patient provides written informed consent and authorization to use and disclose health information.

Exclusion Criteria

1. Patient is enrolled in a concurrent interventional study of an experimental treatment that may confound the results of this study, in the investigator's opinion.
2. Patient has a clinical condition that would not allow them to complete the study.
3. Patient is pregnant or lactating.
4. Patient has nephrotic syndrome or nephrosis.
5. Patient has estimated glomerular filtration rate (eGFR) \< 20 ml/min/1.73m2 or end-stage renal disease requiring chronic dialysis.
6. Patient has been diagnosed with lymphedema.
7. Patient has chronic liver failure or cirrhosis.
8. Patient has a moderate or large pleural effusion as seen on chest X-ray.
9. Patient has been diagnosed with thrombophlebitis or deep vein thrombosis in arms or legs in the past 90 days.
10. Patient has an implanted cardiac rhythm management device (pacemaker or implantable cardioverter defibrillator).
11. Patient has an amputation of a limb.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No