Clinical Trials Logo

Clinical Trial Summary

Currently loop recorders diagnose arrhythmias and send automatic alerts to physicians based on R to R relationships only. We believe arrhythmia diagnostics could be improved if accurate detection of P and T waves as well as QRS complexes were possible.

There is no technique available for long term outpatient monitoring of QT intervals for patient at risk of torsade de pointes when receiving QT prolonging drugs. We believe that if an accurate T wave detection algorithm were developed loop recorders could be used to monitor the QT interval, and perhaps even provide alerts for patients at risk.

The objective of this study is to see if an algorithm can be developed to accurately define P and T waves using data from an implantable loop recorder.


Clinical Trial Description

Pilot Study of 20 prospective cardiology patients with loop recorders currently implanted for standard clinical indications.

Eligible Subjects will be brought into the office of John Wilson, MD or Marshall Winner, MD. After informed consent is obtained from Hatton Research Staff the following will be performed:

- subjects will have an initial loop recorder download to USB flash drive

- 12 lead EKG

- Annotated QT intervals on a 30 second rhythm strip

- 24 hour Holter monitor placed by Hatton Research Staff in order to confirm the loop recorder data.

- Subjects will be instructed on the Holter monitors care and use.

- Subjects will be scheduled to come back to the office after 24 hours to return the Holter monitor and have a final loop recorder download completed.

- Data from the loop recorder, Holter monitor, 12 lead EKG, and 30 second rhythm strip will be downloaded and de-identified per Hatton Research Staff.

- All de-identified data from the initial loop recorder download, 12 lead EKG, 30 second rhythm strip, final loop recorder download, and Holter monitor will be sent to Medtronic for algorithm development.

Independent Variables: These variables include age and race Dependent Variables: These variables include the data from the loop recorder, 12 lead EKG, Holter monitor and 30 second rhythm strip.

Intervention or experimental aspect of the study Subjects will have a 12 lead EKG performed with 30 second rhythm strip Subjects will complete a period of 24 hours in which they will wear a Holter monitor applied by Hatton Research Staff.

Statistical Analysis

- Descriptive statistics (mean, standard deviation) will be calculated for all continuous variables. Continuous variables will be compared using Student's - T test or ANOVA as appropriate.

- Frequency and percentages will be calculated for all categorical variables.

- Categorical data will be compared using chi square or Fisher's Exact Test as appropriate

- Data variables will be assessed by Hatton Research Specialist ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02957006
Study type Observational
Source TriHealth Inc.
Contact Lori Reid, MSN
Phone (513)862-5124
Email lori_reid@trihealth.com
Status Recruiting
Phase
Start date October 2016
Completion date December 2018

See also
  Status Clinical Trial Phase
Completed NCT03079726 - Use of Device Data to Predict Frailty in Individuals
Recruiting NCT06014996 - Comparison of PFA vs. RFA in Patients With Symptomatic Paroxysmal Atrial Fibrillation. N/A
Recruiting NCT04092985 - Smart Watch iECG for the Detection of Cardiac Arrhythmias
Completed NCT05404789 - Tolerance of Centrifuge-induced Acceleration in Subjects With Diabetes Mellitus and Cardiac Arrhythmia N/A
Recruiting NCT04554160 - Arrhythmias in Pulmonary Hypertension Assessed by Continuous Long-term Cardiac Monitoring
Recruiting NCT04471584 - Comparative Analysis in Detection of Atrial Arrhythmia and ECG Quality in Three Different Insertable Cardiac Monitors N/A
Recruiting NCT02906189 - Safety of Magnetic Resonance Imaging in Non-MRI Conditional Pacemakers and ICD Devices N/A
Completed NCT02466633 - Effect of Monitoring System Design on Response Time to Cardiac Arrhythmias N/A
Completed NCT02550340 - Munich Study for Beer Related ECG Change Workup N/A
Completed NCT01871090 - Remote Device Interrogation In The Emergency Department N/A
Completed NCT04884100 - enHEART - Exploring Full Content of Optical Signals to Enhance Cardiac Arrhythmia Screening N/A
Withdrawn NCT04556240 - RECORD-VP: Real-time Evaluation of Cardiac Outpatient Recording Device With VitalPatch RTM
Active, not recruiting NCT05481359 - AF-FLOW Registry: This Study is to Evaluate Ablamap Software in Patients Undergoing Ablation for Atrial Fibrillation.
Recruiting NCT05047835 - Comparison of Prone Position and Standard Electrocardiogram in COVID-19 Patients
Not yet recruiting NCT05974306 - Evaluation of a Proactive Clinical Management and Early Diagnosis of Arrhythmias in Patients With Heart Failure and Non Severely Reduced Left Ventricular Function Through a Telemonitoring System N/A
Not yet recruiting NCT05957315 - Mobile Cardiac Outpatient Telemetry for Unexplained Syncope N/A
Completed NCT06260670 - FLOW EVAL-AF: FLOW Mapping Electrogram VALidation in Patients With Persistent Atrial Fibrillation N/A
Active, not recruiting NCT04876963 - HOLT-ED: Holter-monitoring in End-stage Renal Disease
Completed NCT04943354 - Associations of Combinations of Single-nucleotide Polymorphisms in Women With Premature Ovarian Failure N/A
Recruiting NCT03857711 - Randomized Clinical Trial PULVAB (Prophylactic Pulmonary Veins Ablation) N/A