DYNAMIC CHANGES IN ROX INDEX AND PERFUSION INDEX AS EARLY PREDICTORS OF HIGH-FLOW NASAL CANNULA OUTCOME IN PEDIATRIC ACUTE RESPIRATORY DISTRESS: A PROSPECTIVE OBSERVATIONAL STUDY. - C., Hari Prasath; Krishna, P. Nikith; Kumar, P. Anil; Sripooja, Pentala; Sindhura, K. (International Journal of Medicine & Public Health, 2026)