Introduction Pediatric sleep disordered breathing (SDB) is characterized by long periods of partial upper airway obstruction (UAO) with low apnea‐hypopnea indices (AHI). By measuring snoring and stertor, Sonomat studies allow quantification of these periods of partial UAO. Aim To determine whether transcutaneous CO2 (TcCO2) levels correlate with increasing levels of partial UAO and to examine patterns of ΔTcCo2 in the transitions from (a) wakefulness to sleep and (b) non‐rapid eye movement (NREM) to rapid eye movement (REM) sleep. Methods This was a retrospective review of sleep studies in seven asymptomatic controls aged 7 to 12 years and 62 symptomatic children with suspected SDB and no comorbidities, aged 2 to 13 years. Both groups underwent overnight polysomnography, including continuous TcCO2, at one of two pediatric hospitals in Sydney. Changes in carbon dioxide levels between wake to NREM (sleep onset) and NREM to REM sleep were evaluated using an all‐night TcCO2 trace time‐linked to a hypnogram. Paired Sonomat recordings were used to quantify periods of UAO in the symptomatic group. Results The ΔTcCO2 at sleep onset was greater in SDB children than controls and ΔTcCO2 with sleep onset correlated with the duration of partial obstruction (r = .60; P < .0001). Children with an increase in TcCO2 from NREM to REM had a higher number of snoring and stertor events compared to those in whom TcCO2 decreased from NREM to REM (91 vs 30 events/h; P = < .0001). Conclusions In children without comorbidities, the measurement of TcCO2 during sleep correlates with indicators of partial obstruction.
IntroductionPrison‐based drug and alcohol group treatment programs operate in all Australian jurisdictions. With more than two‐thirds of people in prison having a history of substance use prior to incarceration, such programs are needed. There have been few published papers on the impact of attending group treatment programs in Australian prisons, and the research published to date has been predominately quantitative. We aim to report the experiences of males in prison who completed and those who did not complete a group‐based drug and alcohol program, to gain insight into their strategies for reducing harm from drug and alcohol post‐release.MethodsQualitative thematic analysis of in‐depth interviews with 12 males who completed or were about to complete and 10 males who discontinued a prison‐based group drug and alcohol treatment program.ResultsProgram completers were more likely to have well‐developed plans to reduce drug and alcohol harms and maintain abstinence upon return to the community, which included creating healthier social networks. They also showed stronger insights into the factors that led to offending. Those who did not complete the drug and alcohol program appeared to rely on self‐will as the main way to reduce drug and alcohol harms, with less awareness of options for support services to reduce or stop drug and alcohol use.Discussion and ConclusionsPrison‐based drug and alcohol program engagement imparted useful information for program completers. Controlled trials are needed to examine whether such differences equate to improved outcomes after release.
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