Thanks for writing to the forum!
There is a similar discussion on MedHelp that may help you: http://www.medhelp.org/forums/cardio/archive/14894.html
“With global hypokinesis there is poor function throughout the heart. Congestive heart failure is a syndrome of low cardiac output (hypokinesis), shortness of breath, and swelling of the extremities. Some causes of congestive heart failure are ischemia, blockage of arteries, high blood pressure, viral, valvular, and idiopathic.”
With moderate diffuse global hypokinesis and a LVEF of 40% you would have symptoms like breathlessness, chest pain, leg swelling etc. The diagnosis depends on the symptoms, medical history and the ECHO findings.
Mild left ventricular dilatation is seen prior to ventricular dysfunction and congestive heart failure after myocardial infarction.
Hope this helps. It is difficult to comment beyond this at this stage. Do consult your cardiologist regarding this. Please let me know if there is any thing else and do keep me posted. Take care!