Tag: diastolic blood pressure

There was an increase in PaC02 from 40 to 43 mm Hg after oxygen administration. However, daytime sleepiness was not improved by oxygen administration. Alford and colleagues demonstrated that nasal oxygen at 4 L/min increased the length of sleep disordered breathing events, as well as arterial Pco2, resulting in a lower pH at the end […]

To our knowledge, this is the first study to compare the effects of nasal CPAP and nasal oxygen treatment on the major sequelae of mild obstructive sleep apnea. The main findings of our study were that oxygen does not reduce the total number of sleep disordered breathing events compared to baseline or placebo, although CPAP […]

As there was only one test form for the Rey Complex Figure, practice effects may have accounted for the differences seen on this measure, particularly for nasal CPAP, as treatment and time of measurement were confounded. While there was a marginal effect of treatment on the measure of constructional praxis (Rey copy; (F[3,21] = 2.82, […]

Selected neuropsychologic variables are reported in Table 6. Given the large number of possible dependent measures that could be analyzed from the different neuropsychologic tests, we chose several measures for analysis, a priori, based on the data reported by Berry et al. These measures included sustained visual attention (Ruff 2 & 7 Test), motor ability […]

Some of the important measures of sleep architecture and sleep quality are presented in Table 3. Analyses of the sleep architecture and sleep quality measures generally showed nonsignificant treatment effects, including percentage of time spent in stages of sleep or sleep efficiency. A main effect of treatment was seen for the number of arousals associated […]

When the number of hypopneas was investigated, a main effect of treatment condition was also seen (F[3,21] = 8.18, p<0.001). Here, all forms of treatment resulted in fewer hypopneas compared to baseline (air, p<0.04; oxygen, p<0.01; nasal CPAP, p<0.01). When the AHI was investigated, a main effect of treatment was seen (F(3,21) = 5.84, p<0.01) […]

Statistical Analyses Statistical procedures used for data analysis were a repeated measures analysis of variance (based on its robustness* *) to assess for treatment effects. Data were first analyzed using a one-way repeated measures ANOVA with die factor of treatment (baseline, air, oxygen, nasal CPAP). Posthoc comparisons of mean differences were accomplished with die Schefle […]

Protocol Subjects underwent a total of four evaluations (as described above), each separated by approximately one month (range 24 to 32 days) of treatment with air, oxygen, and CPAP. Following a baseline study, subjects were randomized to receive either nasal oxygen at 4 LPM, or nasal compressed air at 4 LPM, nightly for a month. […]

Benton Visual Betention Tkst. This task requires the subject to reproduce a simple geometric three-figure design following a 10 second exposure. It is sensitive to unilateral spatial neglect, spatial organization problems, attention and/or immediate memory deficits, and visuospatial constructive abilities. This test is scored by tabulating the number of errors made while drawing the figures […]

Digit Symbol.30 This subtest of the Weschler Adult Intelligence Scale-Revised (WAIS-R) is a measure of a number of abilities, such as motor speed, sustained attention, verbal encoding skill, persistence, and visuomotor coordination. The multifaceted nature of this task results in a strong nonspecific sensitivity to brain dysfunction. Scores reflect the number of digit symbol pairs […]