Inter-device reliability of the NPi-200 and NPi-300 pupillometers
2022; Elsevier BV; Volume: 100; Linguagem: Inglês
10.1016/j.jocn.2022.04.023
ISSN1532-2653
AutoresSonja E. Stutzman, Phebe Iype, Jade L. Marshall, Kinley Speir, Nathan J. Schneider, Conny Tran, Shannon Laird, Venkatesh Aiyagari, DaiWai M. Olson,
Tópico(s)Traumatic Brain Injury and Neurovascular Disturbances
ResumoThe pupillary evaluation is an essential part of the neurological examination. Research suggests that the traditional examination of the pupil with a handheld flashlight has limited interrater reliability. Automated pupillometers were developed to provide an objective scoring of various pupillary parameters. The NPi-200 pupillometer is used for quantitative pupillary examinations, the NPi-300 was launched in July 2021 with enhanced features. The purpose of this study is to compare results from the NPi-200 to the NPi-300 to ensure that data are translatable across both platforms. This study examines the inter-device reliability of the NPi-200 compared to the NPi-300 in two cohorts: 20 patients at risk for cerebral edema and 50 healthy controls. Paired assessments of the devices were made from all participants. Each assessment included bilateral PLR readings within a 5-minute interval. Data showed high agreement between the two devices for the Neurological Pupil Index (NPi) reading (k = 0.94; CI: 0.91-0.99) and for pupil diameter assessment (k = 0.91; CI: 0.87-0.96). There is a very high level of agreement between the NPi-200 and NPi-300 among healthy controls and critically ill patients. Clinicians and researchers can interpret the results from either device equally.
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