Informed Consent
Item
consent to participate in the study after detailed information about procedures, possible clinical benefits and risks;
boolean
C0021430 (UMLS CUI [1])
Exercise stress test Negative
Item
negative exercise stress test prior to study initiation;
boolean
C0015260 (UMLS CUI [1,1])
C1513916 (UMLS CUI [1,2])
Forced Expiratory Volume in 1 Second to Forced Vital Capacity Ratio Measurement
Item
forced expiratory volume in 1 sec/forced vital capacity ratio>70%;
boolean
C3815113 (UMLS CUI [1])
Left ventricular ejection fraction Electrocardiography
Item
left ventricular ejection fraction < 45%, determined by echocardiography.
boolean
C0428772 (UMLS CUI [1,1])
C1623258 (UMLS CUI [1,2])
Maximal exercise test Completion Unable
Item
subjects unable to complete a maximal exercise test
boolean
C0199565 (UMLS CUI [1,1])
C0205197 (UMLS CUI [1,2])
C1299582 (UMLS CUI [1,3])
Systolic Pressure
Item
systolic blood pressure > 140 and <110 mmhg
boolean
C0871470 (UMLS CUI [1])
Diabetes Mellitus
Item
diabetes mellitus
boolean
C0011849 (UMLS CUI [1])
Nitrate Preparations
Item
therapy with nitrate preparations
boolean
C0699857 (UMLS CUI [1,1])
C0013227 (UMLS CUI [1,2])
intolerance to sildenafil
Item
history of sildenafil intolerance
boolean
C1744706 (UMLS CUI [1,1])
C0529793 (UMLS CUI [1,2])
Lung disease | Valvular disease
Item
significant lung or valvular diseases
boolean
C0024115 (UMLS CUI [1])
C3258293 (UMLS CUI [2])
Neuromuscular Diseases | Lameness
Item
neuromuscular disorders, claudication
boolean
C0027868 (UMLS CUI [1])
C0311395 (UMLS CUI [2])
Peripheral Vascular Disease
Item
peripheral vascular disease
boolean
C0085096 (UMLS CUI [1])