Skip to main content

Table 2 American Society of Anaesthesiologists (ASA) score

From: Providing surgery in a war-torn context: the Médecins Sans Frontières experience in Syria

Class 1: → Patient in apparent good health notwithstanding his surgical problem
  → Limitations on activity: none
  → Limitations on activity: none
  → Excluded: persons at extremes of age (very young, very old)
Class 2: → Patient with mild systemic disease (e.g., mild hypertension, mild-moderate anaemia)
  → Patient’s health: disease of one body system
  → Status of underlying disease: well controlled
  → Limitations on activity: none
  → Danger of death: none
Class 3: → Patient with systemic disease severe enough to limit activity but not incapacitating
  →  Patient’s health: disease of more than one body system or one major system
  → Limitations on activity: present but not incapacitated
  → Danger of death: no immediate danger
Class 4: → Patient with severe incapacitating disease that is a constant threat to life
  → Patient’s health: poor, with at least one severe disease
  → Status of underlying disease: poorly controlled or end-stage
  → Limitations on activity: incapacitated
  → Danger of death: possible
Class 5: → Moribund patient not expected to survive 24 h with or without surgery
  → Patient’s health: very poor, moribund
  → Limitations on activity: incapacitated
  → Danger of death: imminent
Class 6: → A declared brain-dead patient whose organs are being removed for donor purposes