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Can we advice CABG for single vessel disease  ?

Yes, CABG  may be indicated  in

  • Critical , proximal , complex  LAD disease   with or without  ostium involvement.
  • Many of the bifurcation lesions with large and significant  side branch
  • Small caliber LAD with diffuse disease .

When these occur  in diabetic  subjects , the  indication for CABG is more certain .

* Present generation cardiologists  would feel  every  lesion  is  stentable and should not be referred to the surgeon .But it should be emphasized here,   technical feasibility alone  ,  does not  imply  PCI is superior and ideal in all coronary interventions.

Can we do a CABG  in  single vessel disease  with  normal  LAD ?

CABG is  very rarely  indicated   for isolated RCA or LCX disease. It should be consciously avoided in this patient population.

This is because the at risk myocardium  supplied by these vessels are far less than that of LAD. PCI  is  preferred    in these vessels .(Ofcourse , after considering medical management  ) .

CABG is  ,  too traumatic a  surgery , to  offer  in this  low  risk  coronary  lesions.

Exceptions

CABG  can still be done in following situations  for non LAD single vessel disease.

  • Left dominant circulation  with  complex lesions in LCX /OMs.
  • It is common to see diffuse , long segment  and severe disease of RCA with normal LAD /LCX system .PCI is not feasible in this subset.
  • Failed PCI
  • Recurrent instent restenosis.
  • Bail out CABG after a acute complication during PCI

One should remember ,  inability to do a PCI  does not  mean ,  the patient  should   land in surgeon’s table .We should recall , from our memory medical management is an effective and established form of treatment in single vessel disease ( Mainly for non LAD , and some cases of LAD also !)


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