The validation of QRS morphology with wavelet

The validation of QRS morphology with wavelet - Wavelet study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000007155

Enrollment

Registered

2012-02-01

Start date

2012-02-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Life-threatening arrhythmia and serious heart failure

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients implanted a ICD/CRT-D device incorporated wavelet function in study centers Ptients adapted atrial pacing Patients willing to provide written informed consent

Exclusion criteria

Exclusion criteria: Patients unadapted the wavelet function Patients with advanced atrioventricular block Patients with permanent atrial fibrillation Patients younger than 20 years Patients unwilling to provide written informed consent Patients with any situation that preclude the testing required for all subjects or that otherwise limit study participation required for all subjects (e.g. life expectancy, mental disorder)

Design outcomes

Primary

Measure	Time frame
Evaluate the transformation of QRS morphology with both 12 lead ECG and the wavelet in each heart rate	—

Secondary

Measure	Time frame
Evaluate the transformation of QRS morphology with both 12 lead ECG and the wavelet after shock therapy Review incidence of arrhythmia and transformation of QRS morphology in each heart rate.	—

Countries

Japan

Contacts

Public ContactToshihiro Matsumoto

Medtronic Japan CO., Ltd CRDM

toshihiro.matsumoto@medtronic.com078-306-2881

Outcome results