NCT04510779

Brief Summary

This is a pilot/feasibility study on the accuracy of HRV as measured by the Apple Watch on heart failure patients who are admitted to the hospital with heart failure exacerbation. The primary aim is to observe a statistically significant improvement in the HRV of acutely decompensated heart failure patients upon discharge when compared to admission, implying the utility of HRV measured by Apple Watch as a monitor for cardiovascular health.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for not_applicable heart-failure

Timeline
Completed

Started May 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 10, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 12, 2020

Completed
1.7 years until next milestone

Study Start

First participant enrolled

May 9, 2022

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
Last Updated

June 5, 2024

Status Verified

June 1, 2024

Enrollment Period

1.6 years

First QC Date

August 10, 2020

Last Update Submit

June 4, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Difference of Standard Deviation of NN Intervals upon Discharge Compared to Admission

    Standard Deviation of NN Intervals is a time domain heart rate variability parameter. The value upon discharge after medical management should be statistically greater compared to admission value.

    1-2 Weeks

Study Arms (1)

Heart Failure Patients

EXPERIMENTAL

This will be a single arm study of heart failure patients with acute decompensation

Device: Apple Watch

Interventions

Apple Watch is a smartwatch developed by Apple Inc. The heart rate variability function will be used.

Heart Failure Patients

Eligibility Criteria

Age22 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age \> or = 22
  • Patients admitted to Tufts Medical Center for acute decompensated heart failure
  • Left ventricular ejection fraction greater than 35%
  • Able to consent

You may not qualify if:

  • Pacemaker rhythm
  • Arrhythmia, e.g. atrial fibrillation, atrial flutter, frequent ectopic beats
  • prior history of heart transplant or ventricular assist device
  • pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tufts Medical Center

Boston, Massachusetts, 02111, United States

Location

Related Publications (11)

  • Roger VL. Epidemiology of heart failure. Circ Res. 2013 Aug 30;113(6):646-59. doi: 10.1161/CIRCRESAHA.113.300268.

    PMID: 23989710BACKGROUND
  • Desai AS. Home monitoring heart failure care does not improve patient outcomes: looking beyond telephone-based disease management. Circulation. 2012 Feb 14;125(6):828-36. doi: 10.1161/CIRCULATIONAHA.111.031179. No abstract available.

    PMID: 22331920BACKGROUND
  • Murray CM, Agha SA, Rathi S, Germany RE. The evaluation and monitoring of volume status in congestive heart failure. Congest Heart Fail. 2008 May-Jun;14(3):135-40. doi: 10.1111/j.1751-7133.2008.05640.x.

    PMID: 18550924BACKGROUND
  • Heart rate variability. Standards of measurement, physiological interpretation, and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. Eur Heart J. 1996 Mar;17(3):354-81. No abstract available.

    PMID: 8737210BACKGROUND
  • Musialik-Lydka A, Sredniawa B, Pasyk S. Heart rate variability in heart failure. Kardiol Pol. 2003 Jan;58(1):10-6.

    PMID: 14502297BACKGROUND
  • Patel VN, Pierce BR, Bodapati RK, Brown DL, Ives DG, Stein PK. Association of Holter-Derived Heart Rate Variability Parameters With the Development of Congestive Heart Failure in the Cardiovascular Health Study. JACC Heart Fail. 2017 Jun;5(6):423-431. doi: 10.1016/j.jchf.2016.12.015. Epub 2017 Apr 5.

    PMID: 28396041BACKGROUND
  • Ferrario M, Moissl U, Garzotto F, Cruz DN, Clementi A, Brendolan A, Tetta C, Gatti E, Signorini MG, Cerutti S, Ronco C. Effects of fluid overload on heart rate variability in chronic kidney disease patients on hemodialysis. BMC Nephrol. 2014 Feb 4;15:26. doi: 10.1186/1471-2369-15-26.

    PMID: 24490775BACKGROUND
  • Nussinovitch U, Elishkevitz KP, Katz K, Nussinovitch M, Segev S, Volovitz B, Nussinovitch N. Reliability of Ultra-Short ECG Indices for Heart Rate Variability. Ann Noninvasive Electrocardiol. 2011 Apr;16(2):117-22. doi: 10.1111/j.1542-474X.2011.00417.x.

    PMID: 21496161BACKGROUND
  • Karp E, Shiyovich A, Zahger D, Gilutz H, Grosbard A, Katz A. Ultra-short-term heart rate variability for early risk stratification following acute ST-elevation myocardial infarction. Cardiology. 2009;114(4):275-83. doi: 10.1159/000235568. Epub 2009 Aug 18.

    PMID: 19690410BACKGROUND
  • Hernando D, Roca S, Sancho J, Alesanco A, Bailon R. Validation of the Apple Watch for Heart Rate Variability Measurements during Relax and Mental Stress in Healthy Subjects. Sensors (Basel). 2018 Aug 10;18(8):2619. doi: 10.3390/s18082619.

    PMID: 30103376BACKGROUND
  • Tanindi A, Olgun H, Celik B, Boyaci B. Heart rate variability in patients hospitalized for decompensated diastolic heart failure at admission and after clinical stabilization. Future Cardiol. 2012 May;8(3):473-82. doi: 10.2217/fca.12.24.

    PMID: 22642636BACKGROUND

MeSH Terms

Conditions

Heart Failure

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 10, 2020

First Posted

August 12, 2020

Study Start

May 9, 2022

Primary Completion

November 30, 2023

Study Completion

December 31, 2023

Last Updated

June 5, 2024

Record last verified: 2024-06

Data Sharing

IPD Sharing
Will not share

Locations