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Stratos LV/LV-T Technical Manual  59 
There are no clinically relevant differences in the six minute walk 
test results between the study and the control group. 
2.  The purpose of this secondary endpoint is to evaluate the 
improvement in the patient’s NYHA classification.  
Table 17
 
summarizes the average improvement in NYHA from 
Baseline to Six-Months for 140 patients that were able to 
complete both NYHA classification evaluations.  
Table 17: Improvement in NYHA Classification at 
Six-Months from Baseline 
Study 
(N=97) 
Control 
(N=43) 
Change in 
NYHA class  Number of 
Patients 
% of Total 
Patients 
Number of 
Patients 
% of  
Total 
Patients 
Improved 2 
classes 
10 
10.3% 2  4.7% 
Improved 1 
class 
47 
48.5% 20  46.5% 
Total 
improved 
57 
58.8% 23  51.2% 
No change 
39 
40.2% 20  46.5% 
Worsened 1 
class 
1.0% 1  2.3% 
 
The study and the control group have similar NYHA classes and 
similar rates of improvement in NYHA class from Baseline to the 
Six-Month follow-up.