HEART SINGLE VESSEL DISEASE

[esthermani]

my husband has single vessel disease
  age 35 years
  no symptoms no chest pain
giddiness  vomiting been to doctor      
2d-echo
grade1diastolic dys function    mild concentric LVH
angio report
LMCA-NORMAL
LCX-CO-DOMINANT SYSTEM &NORMAL OMS ARE NORMAL
LAD-TYPE3 VESSEL MID SEGMENT 30-40% STENOSIS. DISTAL VESSEL   IS NORMAL  
DIAGONALS ARE NORMAL .RAMUS-LARGE VESSEL 80% STENOSIS AT ORIGIN
RCA-CO-DOMINANT SYSTEM&NORMAL
PDA&PLVB ARE NORMAL
DRUGS
PROLOMET AM 50/5
ROSLOY GOLD 20
PANTOCID
FEELING VERY WEAK
I SEEK FOR ASUGGESTION FROM YOU FOR HIS CONDITION
BP MAXIMUM NORMAL BELOW 120/80
SOME TIMES  140/90              

[Ger57]

80% stenosis can give symptoms.
If it can not be managed by medications, bypass surgery or placement of a stent can solve the problem.

Stenting is the quick solution but at the ramus/LAD origin stenting is often difficult.

I can understand the cardiologist's suggestion for treating with medication.
80% stenosis is normally not a critical situation and often manageable with medication. So if your husband has no chest discomfort, that seems the treatment of choice.

Did the doctor indicate that the symptoms (feeling very weak, giddiness and/or vomiting) were related to the stenosis?
I still find it hard to believe that the stenosis is the cause for those symptoms.
Are there still tests running to find other causes for them?