139 research outputs found

    Seasonal changes in positive airway pressure adherence

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    Through their effects on sleep duration, bedroom environments, and pollen allergies, seasonal variations may impact positive airway pressure (PAP) adherence. We analyzed daily PAP telemonitoring data from 25,846 adults (median age 64 years, 67.8% male) treated with PAP for at least 4 months [mean (standard deviation, SD) duration of PAP: 5.5 years (SD 4.1)] to examine seasonal changes in PAP adherence, leaks, and residual apnea-hypopnea index. We demonstrate a significant decrease in PAP adherence in June compared to January (mean (SD): 0.37 (1.54) h/night) that achieved the minimal clinically important difference (MCID) of 30 min in 13.9% of adults. Furthermore, we provide novel data supporting the association of rising temperatures with seasonal changes in PAP use. Indeed, the most pronounced decline in PAP adherence was observed during the hottest days, while PAP adherence was only slightly reduced during the coolest days of June. Clinicians should be aware of seasonal changes in PAP adherence that are likely to be exacerbated by climate change

    Health outcomes of continuous positive airway pressure versus mandibular advancement device for the treatment of severe obstructive sleep apnea:an individual participant data meta-analysis

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    Study Objectives: The impact of therapy with continuous positive airway pressure (CPAP) and mandibular advancement device (MAD) has not been directly compared in patients with severe obstructive sleep apnea (OSA). The purpose of this individual participant data meta-analysis was to compare the treatment effects of CPAP and titratable MAD on sleepiness, quality of life, sleep-disordered breathing severity, and sleep structure in patients with severe OSA. Methods: Randomized controlled trials (RCTs) that included severe OSA patients were identified in order to compare the impact of the two treatments. Individual data from severe OSA patients were extracted from the databases and pooled for analysis. Results: Of the seven studies identified, three crossover RCT and one parallel-group RCT corresponding to 151 patients and 249 observations (125 in the CPAP treatment arm and 124 in the MAD treatment arm) were included in the analysis. Titratable MAD had a similar impact to CPAP on major patient-centered outcomes (sleepiness and quality of life). CPAP was more effective in reducing AHI and ODI. However, the two treatments had a similar impact on sleep structure with an increase of N3 and REM sleep. Finally, treatment adherence and preference were largely in favor of MAD. Conclusion: This meta-analysis suggests that MAD represents an effective alternative treatment in severe OSA patients intolerant to CPAP or who prefer alternate therapy

    Influence of Marital Status and Employment Status on Long-Term Adherence with Continuous Positive Airway Pressure in Sleep Apnea Patients

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    ) of consecutive OSAHS patients in whom CPAP had been prescribed for at least 90 days, we studied the impact on long-term treatment adherence of socioeconomic factors, patients and disease characteristics prior to CPAP initiation. living alone; p = 0.01). Age, gender, Epworth sleepiness scale, depressive syndrome, associated cardiovascular morbidities, educational attainment and occupation category did not influence CPAP adherence.Marital status and employment status are independent factors of CPAP adherence in addition to BMI and disease severity. Patients living alone and/or working patients are at greater risk of non-adherence, whereas adherence is higher in married and retired patients. These findings suggest that the social context of daily life should be taken into account in risk screening for CPAP non-adherence. Future interventional studies targeting at-risk patients should be designed to address social motivating factors and work-related barriers to CPAP adherence

    Long-Term Consequences of OSA

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    International audienc

    Long-Term Consequences of OSA

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    International audienc

    Le syndrome d'apnées obstructives du sommeil

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    Libération nocturne de microparticules leucocytaires au cours du syndrome d'apnées-hypopnées obstructives du sommeil

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    Introduction : Des études récentes ont montré l augmentation du taux de microparticules (MPs) provenant de diverses cellules chez les patients atteints d un syndrome d apnées-hypopnées obstructives du sommeil (SAHOS). Méthodes : Deux groupes ont été comparés : 23 patients atteints d un SAHOS ( défini par un index d apnées-hypopnées ou IAH >=5/h) et 15 sujets contrôles (IAH<5). Les MPs étaient prélevées le soir à 17h et le matin à 8h, puis quantifiées et phénotypées par cytométrie de flux le soir de 17 à 18h et de 8h à 9h.Résultats : On observait chez les patients contrôles une diminution significative du taux de MPs leucocytaires CD62L au cours de la nuit (p=0,036). Au contraire, on retrouvait chez les patients porteurs d un SAHOS, une tendance à l augmentation de ces MPs au cours de la nuit, qui devenait significative dans les cas de SAHOS modérés à sévères (p=0,047). La différence du taux de MPs CD62L soir-matin était corrélée positivement à l IAH (r=0,43 ; p=0,007). Dans le groupe SAHOS, l IAH était significativement corrélé aux taux du matin de MPS CD62L(r=0,55 ; p=0,006), de MPs lymphocytaires (r=0,59 ; p=0,003) et de MPs endothéliales (r=0,64 ; p=0,001).Conclusion : Ces résultats témoignent d un relargage nocturne de MPs leucocytaires au cours du SAHOS. D autres études sont nécessaires pour explorer l implication possible des MPs, en particulier leucocytaires, dans la dysfonction endothéliale associée au SAHOS.ANGERS-BU Médecine-Pharmacie (490072105) / SudocSudocFranceF

    Les complications pulmonaires après allogreffe de cellules souches hématopïétiques

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    Les complications pulmonaires après allogreffe de cellules souches hématopoïétiques (CSHP) sont fréquentes dont la réaction du greffon contre l hôte (GVH) pulmonaire chronique qui contribue grandement à la mortalité et à la morbidité en post-greffe. Le syndrome de bronchiolite oblitérante (BOS) est la forme la plus fréquente et sévère. Notre étude monocentrique prospective avait pour but de déterminer les complications pulmonaires survenant après allogreffe de CSHP sur 67 patients greffés à Angers avec une médiane de suivie de 10,5 mois. Elle devait préciser l incidence, les facteurs de risque et le pronostic des patients atteints de BOS et évaluer la faisabilité d un suivi systématique de la fonction respiratoire en post-allogreffe. 46,3% des patients ont présenté une complication pulmonaire majoritairement de type infectieuse. La prévalence des BOS était de 6% chez les patients allogreffés de CSHP et de 21% chez les patients ayant présenté une GVH chronique. Aucun facteur de risque n était significatif en ce qui concerne les BOS. Cependant pour les patients diagnostiqués à risque de développer un BOS définis selon JW. Chien en 2003, les facteurs de risque significatifs étaient l utilisation d un conditionnement myéloatténué et la présence d une GVH chronique extra-pulmonaire. Le taux de mortalité des BOS était de 50% à 20 mois post-greffe. Peu de patients ont pu réaliser leurs EFR de façon systématique durant leur suivi. Si un suivi systématique et rapproché des EFR semble souhaitable afin de dépister précocement le BOS, il semble difficile du fait de la fragilité des patients et de la fréquence des complications intercurrentes.Pulmonary complications after allogeneic hematopoietic stem cell transplantation (aHCT) are common. Bronchiolitis obliterans syndrome (BOS) is the most common and severe manifestation of chronic graft versus host disease (GVHD) lung injury and increases morbidity and mortality. The aim of our prospective study was to describe aHCT pulmonary complications, especially BOS. It included 67 patients transplanted in Angers hospital with a median follow-up of 10,5 months. It aimed to describe incidence, risk factors and prognostic of patients with BOS and to evaluate a systematic lung function follow-up after aHCT. 46,3% of patients had pulmonary complications, essentially infectious complications. The prevalence of BOS for all patients receiving aHCT was 6% and 21% among patients who developed chronic GVHD. We did not identify predictive factors of BOS in our population. However in patients susceptible to develop BOS with an airflow obstruction, there was a significantly association with reducted-intensity conditioning and with GVHD. Mortality rate of BOS was 50% at 20 months. Systematic spirometric following was not possible for many patients. Althrough if systematic lung function follow-up seems advisable for early detection of BOS, it appears to be difficult because of the fragile state of the patients.ANGERS-BU Médecine-Pharmacie (490072105) / SudocSudocFranceF
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