Evaluation and treatment of pain in critically ill adults

Pain is experienced by the overwhelming majority of patients during their intensive care unit stay, but it remains an underappreciated problem. To effectively treat pain, it must be detected and quantified using a validated assessment tool. It is acknowledged that optimal pain relief may be difficult to achieve given the complex interplay of coexisting medical conditions and the environment in which care is provided. Nonetheless, by following structured approaches to pain, resource consumption may be reduced, and even improved survival may be realized. This review covers practices and techniques specific to addressing and treating pain in the adult intensive care environment. Traditional pharmacological approaches including opiate and nonopiate medications are reviewed, as are regional anesthetic techniques and nonpharmacological approaches used for controlling pain.