Does self-efficacy contribute to individual differences in subjective improvements using CPAP?
Although CPAP use predicted daily improvements in affect and sleepiness for the majority of patients, patients with lower AHI, greater treatment self-efficacy, and moderate outcome expectancies reported stronger daily benefits from CPAP. For patients with high-treatment efficacy, adherence may be reinforced by a stronger link between adherence and daily improvements.
Routine calculation of H/M ratios in 123I MIBG scintigrams of neuroblastoma patients is not helpful because it will not identify cardiac ventricular dysfunction in this patient category. A low H/M ratio on 123I MIBG scintigraphy is explained by increased cathecholamine levels secreted by neuroblastoma tumours.