|  | Incidence (%) | Prevention | Treatment | 
      
        | Spasm | 1-5 | Immediate, fast puncture Prophylactic Verapamil and Nitroglycerine
 Proper patient sedation
 | Intraarterial nitroglycerin or verapamil | 
      
        | Radial artery    occlusion | 1-3 | Prophylactic NaHeparin
          Non-occlusive bandage | In symptomatic cases PTA | 
      
        | Perforation | very rare | GW removal and compression bandage | Compression bandage
          In symptomatic cases coronary stent graft | 
      
        | Dissection | very rare | Cross ower to femoral site | In symptomatic cases PTA with stent | 
      
        | Pseudoaneurysm | very rare | Proper pressure bandgage position | Long term compression bandage
          US guided thrombin injection | 
      
        | Granuloma    formation | very rare | - | - |