Moshayedi P, et al. - Researchers examined if responses in somatosensory-evoked potentials (SSEPs), when assessed in the context of prior knowledge (demographic and clinical information), change the pretest predicted probability of recovery in comatose post-cardiac arrest patients. The study sample consisted of 323 patients admitted to post-cardiac arrest service at a tertiary care center. Patients were classified into a group based on SSEP testing. Sicker patients received SSEP testing. The predicted probability of withdrawal of life-sustaining therapy and survival to discharge were changed when the N20 SSEP response results were added to prior knowledge in comatose post-arrest patients.