User Manual

Table Of Contents
64 Lumax Technical Manual
1.6.5.1 U.S. Clinical Study
1.6.5.1.1 Patients Studied
The Single-Lead ICD system clinical study involved 9 patients (7
males
and 2 female) with a mean age of 58.8 years (range: 25 to
83 years). 66.7% presented with ventricular
fibrillation/polymorphic ventricular tachycardia as their primary
tachycardia. The Single-Lead ICD system was selected for the
diagnostic value of the atrial EGMs in 88.9% of the patients.
1.6.5.1.2 Methods
The
feasibility clinical investigation was designed to evaluate the
quality of atrial signals obtained using the Single-Lead ICD. The
study was also designed to evaluate the safety and effectiveness
of the Single-Lead ICD system to detect and treat monomorphic
ventricular tachycardia (MVT), polymorphic ventricular
tachycardia (PVT), ventricular fibrillation (VF), and bradycardia.
The specific predefined objectives of the investigation included
UADE-free survival rate, appropriate bradycardia sensing and
pacing, detection and treatment of ventricular tachyarrhythmias
and appropriate atrial sensing during activities of daily living.
1.6.5.1.3 Results
The mean implant
duration was 6.1 ± 9.4 months with a
cumulative implant duration of 54.5 months. There were 5
patients followed for over six months and 2 patients followed for
over three months. The patient follow-up compliance rate was
100%, 43 out of 43 required follow-ups.
Table 24
provides a summary of the results of the study group.
Table 24: Clinical Study Results
Description Results
UADE-free Survival Rate 100% (9/9)