Plethysmographic Pulse Wave Amplitude Is an Effective Indicator for Intravascular Injection of Epinephrine-Containing Epidural Test Dose in Sevoflurane-Anesthetized Pediatric Patients

BACKGROUND:Plethysmographic pulse wave amplitude (PPWA) was effective in detecting intravascular injection of epidural test dose with 100% sensitivity and specificity in adults. We evaluated the efficacy of PPWA in detecting intravascular injection of a simulated epidural test dose during sevofluran