Table 1: Forrest Classification System with Respective Prognosis

Forrest Classification
Rebleeding Incidence
Surgical Requirement
Incidence of Death

Type I: Active Bleed

  • Ia: Spurting Bleed
  • Ib: Oozing Bleed
55-100%
35%
11%
Type II: Recent Bleed      
  • Ila: Non-Bleeding Visible Vessel (NBVV)
40-50%
34%
11%
  • Ilb: Adherent Clot
20-30%
10%
7%
Type III: Lesion without Bleeding
  • Flat Spot
10%
6%
3%
  • Clean Base
5%
0.5%
2%

 

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