Regional Anesthesia Awareness

Regional anesthesia blocks sensation in a body region while allowing the patient to remain awake, lightly sedated, or more deeply sedated. Hearing operating-room conversation or remembering parts of the procedure is therefore not automatically a complication. A patient who expected to be awake may be calm, comfortable, able to respond, and have no memory gap. Intra-operative awareness becomes a concern when sedation is intended to suppress consciousness but is inadequate. The patient may unexpectedly recall voices, sounds, pressure, fear, or pain. The distress often comes from the mismatch between what the patient expected and what they experienced. Pain during a regional procedure needs careful interpretation. It can signal inadequate sedation, but it can also mean the regional block is incomplete or surgical stimulation exceeds the block’s coverage. More sedative medication may make the patient less able to report pain without correcting the cause. The anesthesia provider must assess both the block and the sedative plan. Before the procedure, explain whether wakefulness and recall are expected. Encourage the patient to report pain, panic, nausea, air hunger, or a sense of being...