Kliger et al developed an algorithm for classifying a patient with heart failure and a normal left ventricular ejection fraction. The authors are from Columbia University in New York.
Parameters:
(1) arterial hypertension (based on physical examination or clinical history)
(2) left ventricular wall thickness on transesophageal echocardiography (TEE)
(3) QRS voltage on ECG
(4) left ventricular size relative to age, gender and body size
Hypertension |
Wall Thickness by TEE vs ECG |
Left Ventricular Size |
Diagnosis |
absent |
wall thick by TEE; increased QRS voltage |
NA |
idiopathic hypertrophic CM |
absent |
both normal |
NA |
restrictive CM |
absent |
wall thick on TEE but decreased QRS voltage |
NA |
infiltrative CM |
present |
NA |
decreased for age, gender and body size |
ventricular-arterial mismatch (increased afterload) |
present |
NA |
increased for age, gender and body size |
volume overload (increased preload) |
where:
• CM = cardiomyopathy
Purpose: To evaluate a patient with heart failure and a normal left ventricular ejection fraction using the algorithm of Kliger et al.
Specialty: Cardiology
Objective: other testing, criteria for diagnosis, severity, prognosis, stage
ICD-10: I50.0,