Anesthesia and analgesia
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Anesthesia and analgesia · Aug 2011
Multicenter StudyMulticenter assessment of the Iowa Satisfaction with Anesthesia Scale, an instrument that measures patient satisfaction with monitored anesthesia care.
The Iowa Satisfaction with Anesthesia Scale (ISAS) is a questionnaire that measures patient satisfaction with monitored anesthesia care. Previous assessments of the reliability and validity of this tool have been conducted in 2 separate single-center studies. Recently, the questionnaire was used in a 24-center, 315-patient, placebo-controlled trial of dexmedetomidine. We analyzed the data from these patients to provide anesthesiologists and statisticians designing multicenter clinical trials the information needed to use the ISAS as a primary study end point. ⋯ The ISAS is reliable, valid, and useful over the conditions suitable for use as a primary study end point in multicenter clinical trials.