NCT04886934

Brief Summary

Transesophageal echocardiography is used to monitor cardiac wall motion at various time points during open-heart surgery. After surgery, the measurements are made at various time points by transthoracic echocardiography. The CS1 system enables continuous, direct measurement of cardiac wall motion. This is achieved through use of temporary pacemaker wires incorporating a motion detector called an accelerometer. Use of TMEs during and after open-heart surgery is part of the normal clinical routine. Continuous monitoring of cardiac wall motion during and after surgery can quickly highlight the need for medical intervention with cardiac drugs and allow very early detection of potentially serious complications leading to abnormal cardiac wall motion. Cardiac wall motion activity registered by the CS1 system and echocardiography at specific time points during and after surgery will be analyzed to see how well they compare.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 3, 2021

Completed
11 days until next milestone

First Posted

Study publicly available on registry

May 14, 2021

Completed
5 months until next milestone

Study Start

First participant enrolled

October 25, 2021

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
Last Updated

February 16, 2024

Status Verified

January 1, 2024

Enrollment Period

3.1 years

First QC Date

May 3, 2021

Last Update Submit

February 15, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Change from Baseline Peak Systolic Velocity (PSV) after increasing heart rate by 25 percent

    Correlation between relative changes in PSVs measured by CS1 and echocardiography

    After surgery: before extubation, while patient is in the intensive care unit (ICU)

  • Change from Baseline PSV after increasing heart rate by 25 percent

    Correlation between relative changes in PSVs measured by CS1 and echocardiography

    After surgery: after extubation and removal of drains, before patient is transferred from ICU to general ward

Secondary Outcomes (3)

  • Adverse Events

    Up to 30 days after surgery

  • Adverse Device Effects

    Up to removal of device at a maximum of 7 days after surgery

  • Device Deficiencies

    Up to removal of device at a maximum of 7 days after surgery

Study Arms (1)

Safety and clinical performance of the CS1 system

EXPERIMENTAL

Placement of the CS1 device on the left ventricle and externalization of the associated leads through the chest wall during open-heart surgery.

Device: CS1 System

Interventions

Placement of CS1, a temporary bipolar myocardial electrode (TME) with an integrated motion sensor (accelerometer), on the left ventricle and externalization of the associated leads through the chest wall during open-heart surgery. CS1 will remain in place for up to 7 days after surgery and closure of the chest wall.

Safety and clinical performance of the CS1 system

Eligibility Criteria

Age19 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with heart disease requiring surgery
  • Above 18 years
  • Patients suitable for study participation without safety concerns based on the Investigator's evaluation of medical history and physical examination.
  • The patient must be able to understand the aims and objectives of the trial, willing and able to comply with all study related procedures
  • The patient must be willing and able to provide written informed consent prior to participation in the clinical investigation
  • The patient agrees to abstain from enrollment in any other clinical investigation for the duration of the study

You may not qualify if:

  • Esophageal disease
  • Atrial fibrillation
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Oslo University Hospital

Oslo, 4950, Norway

Location

MeSH Terms

Conditions

Heart Diseases

Condition Hierarchy (Ancestors)

Cardiovascular Diseases

Study Design

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

Study Record Dates

First Submitted

May 3, 2021

First Posted

May 14, 2021

Study Start

October 25, 2021

Primary Completion

December 1, 2024

Study Completion

March 1, 2025

Last Updated

February 16, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Locations