Table 2. Complication severity distribution (n=22).

Grade	Definition	Cases	Percentage (%)	Clinical examples
Grade 0	No complications	5	22.7	Uneventful recovery
Grade II	Pharmacological treatment†	2	9.1	Blood transfusions
Grade IIIb	Intervention under GA	3	13.6	Stent revision
Grade IVb	Life-threatening (ICU care)	2	13.6	ARDS, ventilator dependence, CNS complications
Grade V	Death	10	45.5	Sepsis, multi-organ failure

ARDS, acute respiratory distress syndrome; CNS, central nervous system; GA, general anaesthesia; ICU, intensive care unit.