How To Assess Sedation And Analgesia During Regional Anaesthesia

Providing sedation and analgesia during regional anesthesia increases patient's satisfaction. A suitable system for assessing sedative level is mandatory. Methods of evaluating the degree of sedation are collected in 3 categories: patient-, observer and machine-based evaluation. Patient's based evaluations are easy and quick to administer but counterbalanced by significant limits. Observer-based scales were designed to standardize assessment. Measurements by electronic devices are perceived as the most objective assessments. The bispectral analysis derivative of EEG (Bispectral Index Scale) was the first approved. The Auditory Evoked response Potentials (AEP) derived from the EEG response to a predefined auditory stimulus. Regardless the new advancement in technology, the use of clinical endpoints remains essential.