Table 1.

A priori IDH definitions

TermDefinition
Nadir90Minimum intradialytic SBP<90 mmHg
Nadir100Minimum intradialytic SBP<100 mmHg
Fall20(Pre-HD SBP−minimum intradialytic SBP) ≥20 mmHg
Fall30(Pre-HD SBP−minimum intradialytic SBP) ≥30 mmHg
Fall20Nadir90(Pre-HD SBP−minimum intradialytic SBP) ≥20 mmHg and minimum intradialytic SBP<90 mmHg
Fall30Nadir90(Pre-HD SBP−minimum intradialytic SBP) ≥30 mmHg and minimum intradialytic SBP<90 mmHg
KDOQI(Pre-HD SBP−minimum intradialytic SBP) ≥20 mmHg and symptoms of cramping, headache, lightheadedness, vomiting, or chest pain during HD
HEMOFall in SBP resulting in intervention of UF reduction, blood flow reduction, or saline administration