Facilitators and Barriers to Positive Airway Pressure Adherence for Adolescents. A Qualitative Study

Advances in Sleep-Disordered Breathing in Children

Pediatric sleep-disordered breathing disorders are a group of common conditions, from habitual snoring to obstructive sleep apnea (OSA) syndrome, affecting a significant proportion of children. The present article summarizes the current knowledge on diagnosis and treatment of pediatric OSA focusing on therapeutic and surgical advancements in the field in recent years. Advancements in OSA such as biomarkers, improving continuous pressure therapy adherence, novel pharmacotherapies, and advanced surgeries are discussed.

Using a longitudinal qualitative approach to understand the lived experiences of caregivers of infants with obstructive sleep apnea who require chronic noninvasive respiratory support

OBJECTIVE

Although positive airway pressure (PAP) is effective for treating obstructive sleep apnea (OSA) in infants, there is a lack of data on caregivers' experiences administering PAP at home. Understanding caregivers' perspectives may change health care professionals approach to PAP initiation. Our study aimed to gain comprehensive insight into caregivers' beliefs, perceptions, and challenges associated with implementing PAP for infants with OSA, considering the transition from inpatient hospitalization to home.

METHODS

In this single-center prospective longitudinal study, caregivers of infants with OSA less than 12 months old who were initiated PAP during inpatient hospitalization underwent two semi-structured interviews over 3 months. The interview data were analyzed using directed content analysis, utilizing the health belief and socioecological models as theoretical frameworks. Data were coded and clustered into themes that reflected the evolving perspectives and experiences of caregivers.

RESULTS

Eight caregivers completed semi-structured interviews, revealing three key themes. First, despite initial negative attitudes towards the equipment, caregivers recognized PAP benefits and through self-efficacy and cues to action, were motivated to use PAP at home. Second, caregivers encountered various barriers to adherence; however, caregivers' self-efficacy improved with time and practice. Lastly, interpersonal, organizational, and community support enhanced adherence while lack thereof hindered implementation.

CONCLUSION

Caregivers of infants with OSA understand the importance of PAP therapy. Providing family-centered care and targeted interventions helps caregivers maintain adherence to PAP for infants. By understanding the lived experiences of caregivers, health care professionals can better meet the needs of families and optimize the effectiveness of PAP.

The latest on positive airway pressure for pediatric obstructive sleep apnea

INTRODUCTION

Obstructive sleep apnea (OSA) is an important and evolving area in the pediatric population, with significant sequelae when not adequately managed. The use of positive airway pressure (PAP) therapy is expanding rapidly and is being prescribed to patients with persistent OSA post adenotonsillectomy as well as those children who are not surgical candidates including those with medical complexity.

AREAS DISCUSSED

This article provides a state-of-the-art review on the diagnosis of pediatric OSA and treatment with positive airway pressure (PAP). The initiation of PAP therapy, pediatric interface considerations, PAP mode selection, administration and potential complications of PAP therapy, factors influencing PAP adherence, the use of remote ventilation machine downloads, considerations surrounding follow-up of patients post PAP initiation and evaluation of weaning off PAP will be reviewed. The literature search was conducted via PubMed, Cochrane Library and Google Scholar databases through to March 2024.

EXPERT OPINION

Further research is required to address barriers to adherence. Further innovation of home monitoring devices for both the diagnosis and assessment of OSA is required, given the limited pediatric sleep medicine resources in several countries worldwide.

The lived experience of positive airway pressure therapy in patients with obstructive sleep apnea across the lifespan: a qualitative study

STUDY OBJECTIVES

Although treatment of obstructive sleep apnea (OSA) with positive airway pressure (PAP) therapy is effective, adherence is often poor. Understanding the patient perspective is needed to inform adherence-promoting interventions. This qualitative study assessed the experiences, preferences, facilitators, and barriers surrounding PAP therapy for the management of OSA in patients from adolescence to older adulthood.

METHODS

Eligible participants ages 19 and older were identified from administrative health care claims; adolescent participants ages 12-18 and their parents/caregivers were identified via electronic health records of a tertiary sleep specialty clinic at a large children's hospital. Forty English-speaking patients and 10 parents of adolescents diagnosed with OSA and prescribed PAP therapy completed semistructured 60-minute telephone interviews conducted by a trained facilitator. Common themes and illustrative quotes were identified.

RESULTS

Themes around OSA diagnosis, initiating OSA treatment, learning about OSA/PAP, decision to start PAP, PAP benefits and challenges, and reasons for nonadherence were identified. Participants suggested design and delivery changes to improve PAP devices. Issues unique to adolescents and their parents were discussed.

CONCLUSIONS

The unique perspectives of patients regarding PAP therapy should be taken into consideration when developing interventions to increase PAP adherence and improve clinical care. Based on identified themes, opportunities for intervention may exist at all stages of care, from diagnosis to treatment initiation. Involving partners, parents, and other caregivers in PAP therapy may be beneficial for optimizing adherence.

CITATION

Simon SL, Stephenson JJ, Haynes K, et al. The lived experience of positive airway pressure therapy in patients with obstructive sleep apnea across the lifespan: a qualitative study. J Clin Sleep Med. 2024;20(3):407-416.

Heated humidified high flow nasal cannula therapy in children with obstructive sleep apnea: A randomized cross-over trial

OBJECTIVE/BACKGROUND

Moderate-to-severe obstructive sleep apnea (OSA) is highly prevalent in children with obesity and/or underlying medical complexity. The first line of therapy, adenotonsillectomy (AT), does not cure OSA in more than 50% of these children. Consequently, continuous positive airway pressure (CPAP) is the main therapeutic option but adherence is often poor. A potential alternative which may be associated with greater adherence is heated high-flow nasal cannula (HFNC) therapy; however, its efficacy in children with OSA has not been systematically investigated. The study aimed to compare the efficacy of HFNC with CPAP to treat moderate-to-severe OSA with the primary outcome measuring the change from baseline in the mean obstructive apnea/hypopnea index (OAHI).

PARTICIPANTS/METHODS

This was a single-blinded randomized, two period crossover trial conducted from March 2019 to December 2021 at a Canadian pediatric quaternary care hospital. Children aged 2-18 years with obesity and medical complexity diagnosed with moderate-to-severe OSA via overnight polysomnography and recommended CPAP therapy were included in the study. Following diagnostic polysomnography, each participant completed two further sleep studies; a HFNC titration study and a CPAP titration study (9 received HFNC first, and 9 received CPAP first) in a random 1:1 allocation order.

RESULTS

Eighteen participants with a mean ± SD age of 11.9 ± 3.8 years and OAHI 23.1 ± 21.7 events/hour completed the study. The mean [95% CI] reductions in OAHI (-19.8[-29.2, -10.5] vs. -18.8 [-28.2, -9.4] events/hour, p = 0.9), nadir oxygen saturation (7.1[2.2, 11.9] vs. 8.4[3.5, 13.2], p = 0.8), oxygen desaturation index (-11.6[-21.0, -2.3] vs. -16.0[-25.3, -6.6], p = 0.5) and sleep efficiency (3.5[-4.8, 11.8] vs. 9.2[0.9, 15.5], p = 0.2) with HFNC and CPAP therapy were comparable between conditions.

CONCLUSION

HFNC and CPAP therapy yield similar reductions in polysomnography quantified measures of OSA severity among children with obesity and medical complexities.

TRIAL REGISTRATION

NCT05354401 ClinicalTrials.gov.

Behavioral and emotional characteristics of Canadian children with obesity and moderate-severe sleep-disordered breathing treated with positive airway pressure: longitudinal changes and associations with adherence

STUDY OBJECTIVES

Behavioral characteristics and outcomes of positive airway pressure (PAP) therapy in children with obesity and moderate-severe sleep-disordered breathing (SDB) have not been reported. Our aims were to 1) determine baseline behavioral/emotional symptoms of this population and characterize changes over time with PAP, and 2) examine associations between baseline behavioral/emotional symptoms and PAP adherence.

METHODS

This multicenter prospective cohort study of children with obesity prescribed PAP for moderate-severe SDB assessed PAP adherence (≥ 4 h/night, >50% of nights, usage diaries, downloads) and compared behavioral/emotional characteristics with parent- and child-reported Conners Rating Scale (Conners) and the Child Behavior Checklist (CBCL) at baseline and 1 year after PAP prescription between adherent and nonadherent participants; scores at baseline were compared retrospectively between adherence groups.

RESULTS

Twenty-four children were included (median 14.1 years [IQR:12.4,16.0]; 87.5% males). Baseline Conners and CBCL scores were elevated (parent- and child-reported Conners inattention and hyperactivity subscales and CBCL subscales [total, internalizing, externalizing]). Baseline parent-reported Conners scores were significantly more elevated in the nonadherent than adherent group (inattention: 73.3 ± 8.5 vs 60.5 ± 14.6, P = .01; hyperactivity: 70.9 ± 11.1 vs 59.1 ± 16.0, P = .05). This difference was present 1 year later for inattention (P = .01) but not for hyperactivity (P = .09). Parent-reported CBCL scores improved over 1 year in adherent but not nonadherent participants.

CONCLUSIONS

We found that children with obesity and moderate-severe SDB have elevated symptoms of behavioral/emotional concerns on standardized testing. Parent-reported emotional characteristics improved in the adherent but not in the nonadherent group. Children with greater inattention/hyperactivity at baseline were less adherent to PAP, suggesting this may contribute to PAP nonadherence.

CITATION

Constantin E, MacLean JE, Barrowman N, et al. Behavioral and emotional characteristics of Canadian children with obesity and moderate-severe sleep-disordered breathing treated with positive airway pressure: longitudinal changes and associations with adherence. J Clin Sleep Med. 2023;19(3):555-562.

Persistent obstructive sleep apnoea in children: treatment options and management considerations

Unresolved obstructive sleep apnoea (OSA) after an adenotonsillectomy, henceforth referred to as persistent OSA, is increasingly recognised in children (2-18 years). Although associated with obesity, underlying medical complexity, and craniofacial disorders, persistent OSA also occurs in otherwise healthy children. Inadequate treatment of persistent OSA can lead to long-term adverse health outcomes beyond childhood. Positive airway pressure, used as a one-size-fits-all primary management strategy for persistent childhood OSA, is highly efficacious but has unacceptably low adherence rates. A pressing need exists for a broader, more effective management approach for persistent OSA in children. In this Personal View, we discuss the use and the need for evaluation of current and novel therapeutics, the role of shared decision-making models that consider patient preferences, and the importance of considering the social determinants of health in research and clinical practice. A multipronged, comprehensive approach to persistent OSA might achieve better clinical outcomes in childhood and promote health equity for all children.

Adherence to Continuous Positive Airway Pressure Therapy in Pediatric Patients with Obstructive Sleep Apnea: A Meta-Analysis

Introduction

Obstructive sleep apnea (OSA) is a public health problem that affects children. Although continuous positive airway pressure (CPAP) therapy is effective, the CPAP adherence rate in children is varied. This study aimed to evaluate the CPAP adherence rate and factors associated with CPAP adherence in children with OSA using a systematic review.

Methods

The inclusion criteria were observational studies conducted in children with OSA and assessed adherence of CPAP using objective evaluation. The literature search was performed in four databases. Meta-analysis using fixed-effect model was conducted to combine results among included studies.

Results

In all, 34 studies that evaluated adherence rate and predictors of CPAP adherence in children with OSA were included, representing 21,737 patients with an average adherence rate of 46.56%. There were 11 calculations of factors predictive of CPAP adherence: age, sex, ethnicity, body mass index, obesity, income, sleep efficiency, the apnea-hypopnea index (AHI), severity of OSA, residual AHI, and lowest oxygen saturation level. Three different factors were linked to children with adherence and non-adherence to CPAP: age, body mass index, and AHI.

Conclusion

The CPAP adherence rate in children with OSA was 46.56%. Young age, low body mass index, and high AHI were associated with acceptable CPAP adherence in children with OSA.

Pediatric pulmonary year in review 2021: Sleep medicine

Pediatric pulmonology publishes original research, review articles, and case reports on a wide variety of pediatric respiratory disorders. In this article, we summarized the past year's publications in sleep medicine and reviewed selected literature from other journals in this field. We focused on original research articles exploring aspects of sleep-disordered breathing in patients with underlying conditions such as cystic fibrosis, asthma, and sickle cell disease. We also explored sleep-disordered breathing risk factors, monitoring, diagnosis, and treatment; and included recent recommendations for drug-induced sleep endoscopy and ways to monitor and improve PAP adherence remotely.

Positive airway pressure for the treatment of the childhood obstructive sleep apnea syndrome

In this review, we have summarized the benefits of treatment with positive airway pressure for the childhood obstructive sleep apnea syndrome and presented a socio-ecological framework to enhance our understanding of positive airway pressure adherence predictors and important targets of comprehensive positive airway pressure treatment models across different pediatric populations. Although positive airway pressure is clearly a beneficial treatment for pediatric obstructive sleep apnea syndrome, additional research is needed to evaluate how socio-ecological factors may interact to predict positive airway pressure adherence, with more attention to the impact of the broader healthcare setting and on treatment approaches and outcomes in special pediatric populations.

A social media intervention for the families of young Black men with obstructive sleep apnoea

OBJECTIVE

To address positive airway pressure (PAP) adherence in adolescents diagnosed with obstructive sleep apnoea (OSA) by pilot testing a novel, online, facilitated, peer-support and health education programme for families.

DESIGN SETTING AND METHODS

Families participated in separate Facebook peer-groups (adolescent [n=6] and parent [n=6]) for four weeks, followed by face-to-face interviews. Participants received OSA and PAP educational videos and posts, engaged with questions and polls, and viewed de-identified postings of peer PAP use data.

RESULTS

Adolescent participants were young Black males aged 13-17 years (n=6) with obesity (n=5), severe sleep apnoea (100%) and 4-15 months of prior PAP use. Parent participants were mothers (n=4) and fathers (n=2). Four of six young males increased their mean PAP use during the intervention period. Overall, parents were more engaged with the Facebook group page than adolescents, but interviews revealed the online group/peer-support and education provided was highly regarded and appreciated by families. Parents were particularly appreciative of being involved in care and diagnosis in this way.

CONCLUSION

Results of this pilot trial provide important data regarding intervention design, content, and delivery approaches to be considered in the development of future interventions aiming to engage families and improve adolescent PAP adherence.

To Wear or Not Wear the Mask: Decline in Positive Airway Pressure Usage in Children with Sleep Disordered Breathing During the COVID-19 Pandemic

PURPOSE

Positive airway pressure (PAP) therapy is an effective treatment prescribed to children with sleep disordered breathing (SDB); however, PAP adherence remains challenging. Given that COVID-19 pandemic continues to impact sleep and daily life, the aim of this study was to evaluate longitudinal trajectory of PAP usage in children during the COVID-19 pandemic.

PATIENTS AND METHODS

This was a retrospective study. Children aged 1-18 years with SDB prescribed PAP at The Hospital for Sick Children (Toronto, Canada) were evaluated for PAP adherence. Demographics, medical history and PAP adherence data during four consecutive 3-month time periods from December 2019 to December 2020 were collected. These four time periods included i) prior to COVID-19 lockdown, ii) during the first three months of lockdown, iii) summer and iv) return to school period. Percentage of days where PAP was used for ≥4 hours and average nightly usage of PAP were primary outcomes.

RESULTS

A total of 149 children (61.7% male, mean (±SD) age=12.8 ± 4.1 years, BMI (±SD) z-score=1.45±1.43) were enrolled. Compared to prior to lockdown, the median (IQR) of percentage of PAP usage ≥4 hours and average nightly usage of PAP declined significantly during the summer and return to school periods (p<0.001 for all). By the end of the return to school period, only 69/149 (46%) showed sustained PAP usage and 80/149 (54%) had decreased PAP usage. Obesity was a risk factor for a decline in PAP usage after returning to school (β=-15.36, p=0.03).

CONCLUSION

Compared to COVID-19 pre-pandemic PAP usage, there was a significant decline in PAP usage across COVID-19 pandemic. There is critical under usage of PAP in children diagnosed with SDB, resulting in an urgent need to address barriers to mitigate poor adherence to PAP long-term. Targeted strategies are required to optimize PAP adherence in children with SDB.

Comparing Adherence of Continuous and Automatic Positive Airway Pressure (CPAP and APAP) in Obstructive Sleep Apnea (OSA) Children

OBJECTIVES

The treatment outcomes of pediatric obstructive sleep apnea (OSA) are affected by positive airway pressure (PAP) therapy adherence, which may be affected by the type of device used. Continuous PAP (CPAP) devices deliver a continuous and fixed air pressure level, whereas automatic PAP (APAP) devices automatically adjust the pressure to meet changing needs during sleep. The adherence, tolerance and consistency of OSA-children's use of CPAP and APAP devices were compared.

STUDY DESIGN

One-year, observational cohort study.

METHODS

Twenty-seven OSA-children were enrolled. Fourteen (52%) used CPAP, and 13 (48%) used APAP. The adherence, tolerance, and consistency of the PAP usage by the two groups were compared.

RESULTS

Overall, 11 of the 27 children (41%) showed good PAP adherence. The CPAP patients averaged 4.9 h of device usage on the days used, for 60% of days, with 6 of 14 (43%) demonstrating good adherence. In comparison, the APAP patients averaged 3.2 h for 55% of days, with 5 of 13 (38%) exhibiting good adherence. The 2 groups showed no differences in their adherence, tolerance, or consistency of device usage (P values, 0.816, 0.609, and 0.720, respectively). Although the adherence of both groups improved in the second 6 months, it was without statistical significance (P values, 0.400 and 0.724). Age, sex, baseline apnea-hypopnea index, comorbidities, prescribed period, device type, mask type, and caregiver education-level were not risk factors for poor PAP adherence.

CONCLUSIONS

No differences in the adherence, tolerance, or consistency of the children's use of CPAP and APAP were revealed in this small inhomogeneous cohort study with limited resources.

Clinical utility of repeated positive airway pressure titrations in children with obstructive sleep apnea syndrome

STUDY OBJECTIVES

Positive airway pressure (PAP) is the second line of treatment for OSAS in children. It is common practice following initiation of PAP to perform repeat titration polysomnography (PSG) to re-evaluate the patient's therapeutic pressure, however data supporting this practice is lacking. We hypothesized that repeat PAP titration would result in significant setting changes in children with OSAS.

METHODS

We retrospectively analyzed demographic, polysomnographic and PAP data of children with OSAS aged 0-18 years who were initiated on PAP and underwent two titration studies over a two-year period. PAP mode and recommended pressure differences between the two titrations were compared.

RESULTS

64 children met inclusion criteria. The median (IQR) baseline obstructive apnea hypopnea index (OAHI) and SpO₂ nadir were 14.8 (8.7-32.7) events/h and 88.5% (85-92%), respectively. The mean differences in OAHI, SpO₂ nadir, and %TST with SpO₂ < 90% between both titrations were negligible, including children with obesity, adenotonsillar hypertrophy, and Trisomy 21. Additionally, there was no significant difference in mean PAP pressure between two separate titration studies for those on continuous PAP or bilevel PAP.

CONCLUSION

Overall, repeat PAP titration in children with OSAS within the timeframe here described did not result in significant changes in PAP mode, continuous PAP pressure or OAHI. Based on these data, repeat PAP titration within two years of an initial titration does not appear to be necessary.

Positive Airway Pressure Therapy for Pediatric Obstructive Sleep Apnea

Pediatric obstructive sleep apnea syndrome (OSAS) is a disorder of breathing during sleep, characterized by intermittent or prolonged upper airway obstruction that can disrupt normal ventilation and/or sleep patterns. It can affect an estimated 2–4% of children worldwide. Untreated OSAS can have far reaching consequences on a child’s health, including low mood and concentration as well as metabolic derangements and pulmonary vascular disease. Most children are treated with surgical intervention (e.g., first-line therapy, adenotonsillectomy); however, for those for whom surgery is not indicated or desired, or for those with postoperative residual OSAS, positive airway pressure (PAP) therapy is often employed. PAP therapy can be used to relieve upper airway obstruction as well as aid in ventilation. PAP therapy is effective in treatment of OSAS in children and adults, although with pediatric patients, additional considerations and limitations exist. Active management and care for various considerations important to pediatric patients with OSAS can allow PAP to be an effective and safe therapy in this population.

Physiological Responses and Perceived Comfort to High Flow Nasal Cannula Therapy in Awake Adults: Effects of Flow Magnitude and Temperature

Clinical use of heated, high flow nasal cannula (HFNC) for non-invasive respiratory support is increasing and may have a therapeutic role in stabilizing the upper airway in obstructive sleep apnea (OSA). However, physiological mechanisms by which HFNC therapy may improve upper-airway function and effects of different temperature modes are unclear. Accordingly, this study aimed to determine effects of incremental flows and temperature modes (heated and non-heated) of HFNC on upper airway muscle activity (genioglossus), pharyngeal airway pressure, breathing parameters and perceived comfort. Six participants (2 females, aged 35±14 years) were studied during wakefulness in supine position and received HFNC at variable flows (0-60 L/min) during heated (37ºC) and non-heated (21ºC) modes. Breathing parameters via calibrated Respitrace inductance bands (chest and abdomen), upper-airway pressures via airway transducers, and genioglossus muscle activity via intra-muscular bipolar fine wire electrodes were measured. Comfort levels during HFNC were quantified using a visual analogue scale. Increasing HFNC flows did not increase genioglossus muscle activation despite increased negative epiglottic pressure swings (p=0.009). HFNC provided ~7cmH₂O positive airway pressure at 60 L/min in non-heated and heated modes. In addition, increasing the magnitude of HFNC flow reduced breathing frequency (p=0.045), increased expiratory time (p=0.040), increased peak inspiratory flow (p=0.002), and increased discomfort (p=0.004). Greater discomfort occurred at higher flows in non-heated versus heated mode (p=0.034). These findings provide novel insight into key physiological changes that occur with HFNC for respiratory support and indicate the primary mechanism for improved upper-airway stability is positive airway pressure, not increased pharyngeal muscle activity.

The impact of the COVID-19 pandemic on positive airway pressure usage in children with sleep-disordered breathing

Purpose

To evaluate the impact of the COVID-19 pandemic on non-invasive positive airway pressure (PAP) usage among children with sleep-disordered breathing (SDB).

Methods

PAP usage data in children with SDB aged 1 to 18 years old at The Hospital for Sick Children, Canada, were analyzed. The PAP usage data were recorded for 3 months prior to and 3 months following the COVID-19 lockdown in Ontario, Canada. The primary outcomes of interest were (i) percentage of days that PAP was used for ≥ 4 h and (ii) average daily usage of PAP based on days when PAP was used.

Results

A total of 151 children were included. The mean (± SD) age and BMI were 12.6 ± 4.1 years and 28.7 ± 12.4 kg/m², respectively. The median (IQR) percentage of days of PAP usage for ≥ 4 h and average nightly PAP usage was significantly higher during compared with prior to the pandemic (76.7 [19.0–94.0] vs 62.0 [15.5–89.0]%, p = 0.02, and 406.0 [244.0–525.0] vs 367.0 [218.0–496.0] min, p = 0.006, respectively). Within this cohort, 95/151 (63%) children with SDB showed increased PAP usage and 56/151 (37%) either decreased the amount of time they used PAP or stopped PAP use altogether.

Conclusions

COVID-19 pandemic has provided opportunities for increased PAP usage in a significant number of children with SDB. A subset of children with prior evidence for suboptimal PAP usage showed further decreases in PAP usage during the pandemic. This information is critical for clinicians to provide anticipatory guidance to encourage PAP usage both during the pandemic and beyond.

Supplementary Information

The online version contains supplementary material available at 10.1007/s11325-021-02409-w.

Clinical predictors of nonadherence to positive airway pressure therapy in children: a retrospective cohort study

STUDY OBJECTIVES

Despite the importance of treating sleep-disordered breathing, positive airway pressure adherence rates in children are low. Identifying readily available predictors of nonadherence would enable the development of targeted interventions and supports, but literature is limited. Our objective was to identify baseline clinical predictors of 6-month positive airway pressure therapy nonadherence in children with SDB through a retrospective cohort study.

METHODS

This study evaluated children (ages 8-17 years) prescribed positive airway pressure therapy for sleep-disordered breathing between 2011 and 2017 at a single pediatric tertiary hospital. The primary outcome was nonadherence at 6 months, measured using both machine downloads and self-report. Candidate baseline predictors included demographics, comorbidities, and sleep-disordered breathing characteristics. Relative risks (RR) and 95% confidence intervals (CI) were estimated using a modified Poisson regression. Missing data were imputed prior to analysis.

RESULTS

The study included 104 children. The independent predictors most strongly associated with greater nonadherence were older age (RR = 1.08 for a 1-year increase; 95% CI, 1.00-1.16) and higher oxygen saturation nadir (RR = 1.03 for a 1% increase; 95% CI, 1.00-1.05), whereas those most strongly associated with lower nonadherence were higher arousal index (RR = 0.97 for a 1 event/h increase; 95% CI, 0.95-1.00), developmental delay (RR = 0.58; 95% CI, 0.30-1.13), and asthma (RR = 0.72; 95% CI, 0.44-1.17).

CONCLUSIONS

Overall, children who are older, have less-severe sleep-disordered breathing, or less-disrupted sleep at baseline are more likely to be nonadherent to positive airway pressure therapy and may benefit from additional supports to acclimatize to therapy. As clinical predictors were only weakly associated with nonadherence, nonclinical characteristics may play a larger role in predicting adherence.

Experiences of Using Positive Airway Pressure for Treatment of Obstructive Sleep Apnoea: A Systematic Review and Thematic Synthesis

STUDY OBJECTIVES

Sub-optimal use of positive airway pressure (PAP) to treat obstructive sleep apnoea (OSA) continues to be a major challenge to effective treatment. Meanwhile, the individual and societal impacts of untreated OSA make effective treatment a priority. Although extensive research has been conducted into factors that impact PAP use, it is estimated that at least half of users do not use it as prescribed. However, the voice of users is notably minimal in the literature. A systematic review and qualitative metasynthesis of PAP user experience was conducted to contribute to understandings of how PAP is experienced and to inform how usage could be improved.

METHODS

PsycINFO, MEDLINE, CINAHL and EMBASE databases were systematically searched. Primary research findings of adult experiences using PAP that had been inductively analysed were included. Papers were critically appraised using the CASP qualitative checklist to generate a "hierarchy of evidence". Thematic synthesis was then conducted to generate analytical themes. Results were presented in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA).

RESULTS

25 papers reporting on over 398 people's experiences were analysed to generate 4 themes: Journey to PAP, Discomfort from and around PAP, Adapting to and using PAP, and Benefits from PAP. Author reflexivity and vulnerability to bias is acknowledged.

CONCLUSIONS

The findings highlight the applicability of a biopsychosocial understanding to PAP use. This metasynthesis gave voice to user experiences, revealing barriers to PAP use at a healthcare service level across the world, and suggests ways services can address these barriers.

Findings of routine nocturnal polysomnography in children with Down syndrome: a retrospective cohort study

STUDY OBJECTIVE

Children with Down syndrome (DS) are at risk for sleep disorders including; obstructive sleep apnea (OSA). Although OSA is diagnosed by polysomnography (PSG), the practicality of PSG in DS is questionable. Further, OSA treatment efficacy in DS is largely unknown given the challenges of PSG. Our aims were to review (i) the feasibility of PSG, and (ii) the efficacy (improvement in obstructive apnea hypopnea index (OAHI)) of OSA treatment using follow-up PSG in DS.

METHODS

Retrospective review of patients aged <21 years with DS who underwent PSG from October 2016 to June 2019. Successful PSG was determined using total sleep time (TST). PSG following treatment with adenotonsillectomy (AT) or positive airway pressure (PAP) was evaluated and compared to pre-treatment.

RESULTS

Among 248 patients with DS, only 11(4.4%) had unsuccessful PSG (TST<1h). Of the 237 successful studies (age: 7.9 ± 0.3y), average TST and sleep efficiency was 5.6 ± 0.1h and 79.5 ± 1.3%. 41 had post-AT PSG and 11(27%) achieved OSA cure (OAHI<2) with all demonstrating improved SE (p = 0.01) and OAHI (p = 0.0003). Multivariate analysis revealed only age was predictive (p = 0.003) of residual OSA post-AT. Of 24 children who underwent PAP titration, 20(83%) tolerated titration with improved OAHI (p = 0.01), however, no significant improvements in SE were observed.

CONCLUSIONS

In a large cohort of DS children, PSG was well tolerated. Following AT or PAP therapy, post treatment PSG confirmed efficacy, although residual OSA was identified. PSG is thus both feasible and useful in identifying OSA, OSA treatment response and should guide in decision making in children with DS.

Positional obstructive sleep apnea in an obese pediatric population

STUDY OBJECTIVES

Positional obstructive sleep apnea (POSA) is a phenotype of obstructive sleep apnea (OSA) where sleep-related obstructive events occur predominantly in the supine position. Limited knowledge exists regarding the presence of POSA in children with obesity. The study objective was to determine the prevalence of POSA while identifying factors associated with POSA in children with obesity.

METHODS

This was a cross-sectional study of children with obesity, aged 8 to 18 years, with a diagnostic polysomnogram (PSG) between 2012 to 2019, who were referred for the evaluation of sleep-related breathing. POSA was defined as an overall obstructive apnea-hypopnea index (OAHI) ≥5 events/h and a supine OAHI to nonsupine OAHI ratio of ≥2. Patient demographics, anthropometrics, and PSG data were recorded.

RESULTS

Of the 112 children with obesity with a diagnostic PSG, 43 (38%) had OSA. Among those with OSA, 25 of 43 (58%) had POSA (mean age: 14.6 ± 2.3 years; mean body mass index: 37.7 ± 7.6 kg/m²; 68% male) and 18 of 43 (42%) had non-POSA (mean age: 13.9 ± 2.8 years; mean body mass index: 37.9 ± 7.2 kg/m²; 78% male). Among those with POSA, 13 of 25 (52%) had mild OSA, 7 of 25 (28%) had moderate OSA, and 5 of 25 (20%) had severe OSA. No significant differences were found in age, sex, and anthropometric measures between POSA and non-POSA groups. Time spent in supine and nonsupine sleep did not differ significantly between groups.

CONCLUSIONS

In children with obesity and OSA, POSA occurs frequently. Identifying POSA allows for potential targeted positional therapy for children with obesity.

Positive airway pressure adherence in pediatric obstructive sleep apnea: A systematic scoping review

Positive airway pressure (PAP) therapy is a commonly prescribed treatment for pediatric obstructive sleep apnea (OSA). Negative health consequences associated with untreated OSA make understanding the utilization of PAP therapy imperative. The aim of this review was to describe PAP use in children and adolescents with OSA, explore factors that influence use, and describe published scientific or clinical approaches to improve use. Among 20 studies, average PAP adherence was 56.9% (range, 24-87%). PAP use averaged 4.0 h (SD = 3.1) to 5.2 h (SD = 3.4) per night. Cautious consideration of summary estimates of PAP use is necessary as studies were heterogeneous and adherence definitions widely varied across studies. Age, sex, and developmental delay were the only factors associated with PAP use in more than one study. The majority of approaches to improve use were program evaluations rather than scientifically tested interventions. This review identified critical gaps in the existing literature and sets forth a research agenda for the future.

How to use noninvasive positive airway pressure device data reports to guide clinical care

There has been a significant increase in the past few decades in the number of children receiving noninvasive positive airway pressure (PAP) therapy at home. At present, PAP therapy can be successfully used in children of all ages, for a variety of indications. Data acquired from PAP devices is clinically useful, providing objective information regarding adherence, leak, and efficacy of PAP therapy. However, guidelines outlining a standardized approach to interpretation of PAP device data in pediatrics is currently lacking. Given the rapidly expanding use of PAP therapy in pediatric practice, we aim to provide an overview of the interpretation of data reports, otherwise called "data downloads," from PAP devices and illustrate how they can be used to guide clinical care.

Transition to Adult Care for Obstructive Sleep Apnea

Obstructive sleep apnea may occur throughout the lifespan, with peak occurrences in early childhood and during middle and older age. Onset in childhood is overwhelmingly due to adeno-tonsillar hypertrophy, while in adulthood, contributors include risk factors, such as obesity, male sex, and aging. More recently, there has been a precipitous increase in the prevalence of obstructive sleep apnea in youth. Drivers of this phenomenon include both increasing obesity and the survival of children with complex medical conditions into adulthood. Appropriate treatment and long-term management of obstructive sleep apnea is critical to ensure that these youth maintain well-being unfettered by secondary comorbidities. To this end, patient engagement and seamless transition of care from pediatric to adult health care systems is of paramount importance. To date, this is an unacknowledged and unmet need in most sleep programs. This article highlights the need for guideline-driven sleep disorder transition processes and illustrates the authors’ experience with the development of a program for sleep apnea.

Caregiver support and positive airway pressure therapy adherence among adolescents with obstructive sleep apnea

Introduction

Positive airway therapy (PAP) adherence rates are suboptimal among adolescents with obstructive sleep apnea (OSA) and strategies to increase PAP adherence is a clinical priority. This study evaluates if caregiver support is associated with PAP adherence rates among adolescents with OSA.

Methods

We conducted a retrospective study and evaluated PAP adherence rates among adolescents with OSA from 2012 to 2017. Adherence was measured as continuous variables: average PAP usage (minutes per night) and average PAP usage >4 hours/night (% of all nights). We evaluated if adolescents with OSA who were receiving practical caregiver support with PAP had higher adherence than adolescents with OSA without caregiver support.

Results

One hundred and seven adolescents with OSA (mean age=14.1±2.5 years, 64.5% male, mean BMI percentile=89.0±21.8) seen between January 2012 and August 2017 at our institution were included. In this study, 60.7% (n=65) of adolescents with OSA were receiving practical caregiver support with PAP therapy. Adolescents with OSA receiving practical caregiver support with PAP used therapy for a significantly greater duration each night compared to adolescents who were not receiving practical caregiver support (298.5±206.7 versus 211.9±187.2 minutes; P=0.02). Greater time since the initial PAP prescription was independently associated with PAP adherence.

Conclusion

Focusing on PAP adherence early may help adolescents with OSA incorporate therapy into their nightly routine, which may improve adherence and lead to improved health outcomes in adolescents with OSA. Practical caregiver support may be an essential component of ensuring optimal PAP adherence among adolescents with OSA.

Positive airway pressure in pediatric obstructive sleep apnea

Obstructive sleep apnea (OSA) is characterized by snoring, recurrent obstruction (apneas) of the upper airway which disrupts normal ventilation during sleep. In the last decade, there has been a increase in children diagnosed with persistent, severe OSA attributed to (1) the obesity epidemic as 25-60% of obese children will have obesity related OSA (2) advances in medical technology that have increased life expectancy of medically complex children (3) improved diagnostics and (4) increased awareness. Positive airway pressure (PAP) is commonly used to treat persistent, severe OSA. PAP devices deliver pressurized air via nasal or oronasal interfaces to distend the upper airway and ameliorate OSA. Although effective in treating OSA, PAP adherence is suboptimal. This review article provides an overview of (1) PAP use in pediatric OSA (2) PAP devices (3) PAP adherence, (4) strategies and interventions to improve adherence and (5) Optimizing PAP delivery during pediatric to adult transition.

Long-term adherence to ambulatory initiated continuous positive airway pressure in non-syndromic OSA children

PURPOSE

In children, the usual indications for continuous positive airway pressure (CPAP) are residual OSA after adenotonsillectomy and/or persistent OSA due to obesity. Data concerning adherence (hours/night) following ambulatory CPAP initiation are scarce.

METHODS

An observational cohort of 78 children was followed over 2 years. All exhibited sleep-disordered breathing (SDB) symptoms, were assessed by polysomnography, and prescribed CPAP. CPAP was initiated at hospital for 10 children.

RESULTS

OSA children, mean age 10.4 ± 3.2 years, were mostly males (75.6%), with a mean body mass index of 21.2 ± 7.3 kg/m², and mean apnea+hypopnea index of 12.2 ± 10.6 events/hour. Seventy-two children were still on CPAP at 3 months, 63 at 6 months, 55 at 1 year, and 34 at 2 years. CPAP was discontinued thanks to rehabilitation programs, dento-facial orthopedics, and/or weight loss. Mean CPAP adherence at 1, 3, 6, 12, and 24 months was respectively 6.1 ± 2.8, 6.2 ± 2.6, 6.2 ± 2.8, 6.3 ± 2.8, and 7.0 ± 2.7 h/night. There was a trend towards higher CPAP adherence and younger age, primary versus middle/high school attendance, higher baseline apnea+hypopnea index, and neurocognitive disorders.

CONCLUSION

In our population, mean CPAP adherence defined in hours per night was high and did not decrease during the 24-month follow-up. These findings support the feasibility of ambulatory CPAP initiation in non-syndromic OSA. The high CPAP adherence is expected to be associated with improvements in neurocognition, and in metabolic and cardiovascular parameters.

Assessment and treatment of pediatric obstructive sleep apnea in Canada: history and current state of affairs

AIM

To highlight Canada's contributions to the assessment and treatment of pediatric obstructive sleep apnea as well as outline the current state of pediatric obstructive sleep apnea in Canada.

METHODS

A search was conducted in MEDLINE (Ovid) using Medical Subject Headings (MeSH) and free-text terms for 'child' and 'obstructive sleep apnea' with subsequent 'human' limit. The results were reviewed to identify publications where any author's listed a Canadian institution.

RESULTS

Canadian contributions to the field of pediatric obstructive sleep apnea have grown over the last 30 years with an increase in number of contributors and centres. Much of the early work stemmed from McGill University with important contributions in examining alternatives to polysomnography and post-adenotonsillectomy respiratory compromise. Today, contributors from centres across the country are engaged in the field and come from a greater diversity of disciplines. With continued challenges and opportunities, Canada will continue to help advance the field of pediatric OSA.

CONCLUSION

Canada has a strong community of people invested in continuing to work to improve the lives of Canadian children with pediatric OSA.

Pediatric pulmonology year in review 2017: Part 4 (Sleep medicine)

Pediatric Pulmonology publishes original research, case reports and review articles on topics related to a wide range of children's respiratory disorders. In this article (Part 4 of a 5-part series), we summarize the past year's publications in sleep medicine, in the context of selected literature in this area from other journals. Articles are highlighted on topics including diagnosis and treatment of OSAS, sleep duration and position, and sleep disorders in chronic disease.