0000000000512537
AUTHOR
Ozen K. Basoglu
showing 24 related works from this author
Change in weight and central obesity by positive airway pressure treatment in obstructive sleep apnea patients: Longitudinal data from the European S…
2017
Introduction: The effect of continuous positive airway pressure (CPAP) treatment on body weight and central obesity in obstructive sleep apnea (OSA) patients is still unclear. Objectives: We aimed to study body composition change during CPAP treatment in the European Sleep Apnea Database (ESADA). Methods: OSA patients with a CPAP treatment follow-up time of more than 30 days in the ESADA registry were selected (n=2015). Body mass index (BMI), body weight, waist-, hip- and neck-circumferences were assessed at baseline and follow-up (median [interquartile range], 242 [380] days). Predictors for body composition changes with CPAP were analyzed adjusting for confounders. Results: Overall, there…
Positive Airway Pressure Treatment Reduces Glycated Hemoglobin (HbA1c) Levels in Obstructive Sleep Apnea Patients: Longitudinal Data from the Esada
2019
European-Respiratory-Society (ERS) International Congress -- SEP 28-OCT 02, 2019 -- Madrid, SPAIN
Long-term positive airway pressure therapy is associated with reduced total cholesterol levels in patients with obstructive sleep apnea : data from t…
2020
Background and aim: Obstructive sleep apnea (OSA) is an independent risk factor for dyslipidemia. The current study examined the effects of positive airway pressure (PAP) treatment on lipid status in the European Sleep Apnea Database (ESADA). Methods: The prospective cohort study enrolled 1564 OSA subjects (74% male, mean age 54 ± 11y, body mass index (BMI) 32.7 ± 6.6 kg/m2 and apnea-hypopnea index (AHI) 40.3 ± 24.4 n/h) undergoing PAP therapy for at least three months (mean 377.6 ± 419.5 days). Baseline and follow-up total cholesterol (TC) from nine centers were analyzed. Repeated measures and logistic regression tests (adjusted for age, sex, weight changes, lipid lowering medication, PAP …
Clusters of sleep apnoea phenotypes: A large pan-European study from the European Sleep Apnoea Database (ESADA)
2021
Background and objective: To personalize OSA management, several studies have attempted to better capture disease heterogeneity by clustering methods. The aim of this study was to conduct a cluster analysis of 23 000 OSA patients at diagnosis using the multinational ESADA. Methods: Data from 34 centres contributing to ESADA were used. An LCA was applied to identify OSA phenotypes in this European population representing broad geographical variations. Many variables, including symptoms, comorbidities and polysomnographic data, were included. Prescribed medications were classified according to the ATC classification and this information was used for comorbidity confirmation. Results: Eight cl…
Mild obstructive sleep apnoea (OSA) and arterial hypertension in the EuropeanSleep Apnoea Database (ESADA) cohort study.
2018
Background: Mild obstructive sleep apnoea (OSA) is highly prevalent, however its association with important clinical outcomes like arterial hypertension remains unknown. Aims and Objectives: To investigate the association between mild OSA and arterial hypertension in the European Sleep Apnoea Database (ESADA) cohort after adjusting for relevant confounding factors. Methods: A multicentric sample of 4974 adults from the ESADA cohort who showed simple snoring or mild OSA at cardiorespiratory polygraphy was studied. We compared the predictive value of mild OSA (AHI 5- Results: Arterial hypertension prevalence was 37% in mild OSA patients (n=2457) compared to 20% in non-apnoeic snorers (n=2517,…
Impact of temperature on obstructive sleep apnoea in three different climate zones of Europe: Data from the European Sleep Apnoea Database (ESADA)
2021
Recent studies indicate that ambient temperature may modulate obstructive sleep apnoea (OSA) severity. However, study results are contradictory warranting more investigation in this field. We analysed 19,293 patients of the European Sleep Apnoea Database (ESADA) cohort with restriction to the three predominant climate zones according to the Koppen-Geiger climate classification: Cfb (warm temperature, fully humid, warm summer), Csa (warm temperature, summer dry, hot summer), and Dfb (snow, fully humid, warm summer). Average outside temperature values were obtained and several hierarchical regression analyses were performed to investigate the impact of temperature on the apnea-hypopnea index …
Blood pressure reduction following treatment with positive airway pressure in sleep apnea: data from the European Sleep Apnea Database
2020
Abstract Introduction Positive airway pressure (PAP) treatment modifies blood pressure (BP) in patients with obstructive sleep apnea (OSA). We aimed to explore which factors that influence the BP response to PAP therapy in the European Sleep Apnea Database (ESADA). Methods A total of 2662 OSA patients with PAP therapy ≥90 days were included in the analysis (74% male, age 55±11 years, body mass index 32.3±6.1 kg/m2, 47% hypertensives, apnea-hypopnea index 40±24 events/h, treatment duration 1.0±1.1 years, PAP compliance 5.2±1.9 h/day). Anthropometric data, co-medications and office BP were assessed at baseline and follow-up visit. Results Systolic and diastolic BP were modestly reduced after …
Obstructive sleep apnea is an independent predictor for dyslipidemia: Data from the European Sleep Apnea Database (ESADA)
2017
Background and aim: Obstructive sleep apnea (OSA) and dyslipidemia are both independently well-recognized risk factors for cardiovascular disease. Previous data are inconclusive regarding the relationship between OSA and dyslipidemia. The aim of the present study was to investigate the association between OSA and dyslipidemia in ESADA (European Sleep Apnea Database). Methods: The cross-sectional analysis included 8592 patients (age 50.1±12.7 years, 69.1% male, BMI 30.8±6.6 kg/m2, mean AHI 25.7±25.9 n/h) from the ESADA. The independent relationship between measures of OSA (AHI, ODI, mean and lowest saturation) and lipid profile (total cholesterol [TC], HDL-cholesterol [HDL-C] (n=3289) and fa…
Positive airway pressure level based upper airway collapsibility classification - the European Sleep Apnea Database (ESADA)
2021
Background and objectives: Obstructive sleep apnea (OSA) patients with mild upper airway collapsibility represents a target group for potential non-positive airway pressure (PAP) treatment. We studied the clinical characteristics of this endotypic group in a large Pan-European sleep apnea registry. Methods: A retrospective analysis was performed in 2541 OSA patients with fixed PAP treatment (male 74%, age 53±11 years, body mass index [BMI] 33±6 kg/m2, apnea-hypopnea index [AHI] 41±25 events/h at baseline). Therapeutic PAP level ≤8 cm H2O was used as the cut-off to classify patients with mild upper airway collapsibility (Landry SA et al. Sleep 2017; 40:6). Results: Mean pressure of the PAP t…
Comment to the Editorial by KS Park and EW Kang “Is only fixed positive airway pressure a robust tool for kidney protection in patients with obstruct…
2019
We thank doctors Park and Kang for their editorial that well summarized our article. Our common belief is that one of the possible consequences of untreated obstructive sleep apnea (OSA) is an accelerated deterioration of kidney function, and that more knowledge would be necessary on the possible protective effects of OSA treatments. To our knowledge, so far the only OSA therapy whose effects on renal function have been tested is continuous positive airway pressure (CPAP), and most , although not all studies, have demonstrated its benefits. Our own study, while confirming benefits of fixed CPAP, has demonstrated little effect of auto-adjusting CPAP (APAP). This finding may be of relevance a…
Evaluation of a multicomponent grading system for obstructive sleep apnoea: the Baveno classification
2021
New findings on pathophysiology, epidemiology, and outcome have raised concerns on the relevance of the apnoea–hypopnoea index (AHI) in the classification of obstructive sleep apnoea (OSA) severity. Recently, a multicomponent grading system decision integrating symptomatology and comorbidities (Baveno classification), was proposed to characterise OSA and to guide therapeutic decisions. We evaluated whether this system reflects the OSA population, whether it translates into differences in outcomes, and whether the addition of AHI improves the scheme. A total of 14 499 OSA patients from the European Sleep Apnoea Database cohort were analysed. The groups were homogeneously distributed and were…
Obstructive sleep apnoea in adult patients post-tonsillectomy
2021
Background: The impact of removing the upper airway lymphoid tissue and in particular, tonsillectomy, in adults with OSA has not been demonstrated in large populations. Aims: To compare the severity of OSA and the prevalence of cardiovascular, metabolic and respiratory co-morbidities between patients with OSA who had undergone previous tonsillectomy and those who had not. Methods: The 19,711 participants in this study came from the European sleep apnea database (ESADA) which comprises data from unselected adult patients aged 18–80 years with a history of symptoms suggestive of OSA referred to sleep centers throughout Europe. Results: There were no differences between the two groups in terms…
Fixed But Not Autoadjusting Positive Airway Pressure Attenuates the Time-dependent Decline in Glomerular Filtration Rate in Patients With OSA
2018
Abstract: BACKGROUND: The impact of treating OSA on renal function decline is controversial. Previous studies usually included small samples and did not consider specific effects of different CPAP modalities. The aim of this study was to evaluate the respective influence of fixed and autoadjusting CPAP modes on estimated glomerular filtration rate (eGFR) in a large sample of patients derived from the prospective European Sleep Apnea Database cohort. METHODS: In patients of the European Sleep Apnea Database, eGFR prior to and after follow-up was calculated by using the Chronic Kidney Disease-Epidemiology Collaboration equation. Three study groups were investigated: untreated patients (n = 14…
Excessive Daytime Sleepiness in Obstructive Sleep Apnea Patients Treated With Continuous Positive Airway Pressure: Data From the European Sleep Apnea…
2021
Excessive daytime sleepiness (EDS) is a symptom of obstructive sleep apnea (OSA) that resolves under treatment with continuous positive airway pressure (CPAP). In some patients, sleepiness persists despite CPAP treatment. We retrospectively analyzed data on subjective residual EDS, assessed as an Epworth Sleepiness Scale score (ESS) >10, in patients from the European Sleep Apnea Database (n = 4,853, mean age +/- SD 54.8 +/- 11.8 years, 26.1% females), at baseline and at the first visit (median follow-up: 5 months, interquartile range 3-13). An ESS > 10 occurred in 56% of patients at baseline and in 28.2% of patients at follow-up. Residual EDS was analyzed in 2,190 patients (age: 55.1 +/- 12…
Reference values for mean overnight saturation in sleep apnoea – the European Sleep Apnoea Database (ESADA)
2020
Introduction: Normative values for mean overnight oxygen saturation during sleep in apnoea patients stratified for age, BMI, and sleep apnoea severity are lacking. Aim: To establish reference intervals for overnight mean saturation in a large sleep apnoea patient cohort. Methods: Mean overnight oxygen saturation was analysed in adult patients (n=23,220) from the European Sleep Apnoea Database (ESADA, 30 sleep centres, 18 European countries). Data were classified according to age, gender, BMI ( Results: Mean overnight saturation was 93.0% (95% confidence interval (CI) 92.9 to 93.1%). Age influenced the adjusted mean nocturnal saturation (93.6%, 93.2%, 92.9%, 92.5%, 92.2% and 91.9% for those …
OSA and cancer in Europe: the European Sleep Apnea Database (ESADA) experience
2017
Background: Experimental and clinical studies suggest a relationship between Obstructive Sleep Apnea (OSA) and cancer development or progression Objectives: To explore the association between the severity of OSA and prevalence of cancer among patients reported to the European Sleep Apnea Database (ESADA) after control of several known risk factors for cancer development Methods: A prospective multicentre cohort study of adult patients with OSA (Apnea/Hypopnea Index, AHI≥5). OSA severity was classified according to AHI, Oxygen Desaturation Index (ODI) and % night-time spent with oxygen saturation Results: Of 19,556 participants, 357 (1.8%, 59.4% male) had been diagnosed with malignancy. Pati…
Mild OSA and arterial hypertension in the European Sleep Apnoea Database cohort study
2019
Background: Mild obstructive sleep apnoea (OSA) is highly prevalent; however its association with important clinical outcomes like arterial hypertension remains unknown. Aims: To investigate the association between mild OSA and hypertension in the European Sleep Apnoea Database (ESADA) cohort after adjusting for relevant confounding factors. Methods: A multicentric sample of 7995 adults from the ESADA cohort with simple snoring or mild OSA at PG or PSG was studied. We compared the predictive value of mild OSA (AHI 5- Results: Arterial hypertension prevalence was 37% in mild OSA (n=1566) compared to 22% in non-apnoeic snorers (n=793, p Conclusion: Our results suppport the hypothesis that mi…
Hyperlipidemia Prevalence and Cholesterol Control in OSA: Data from European Sleep Apnea Database (ESADA)
2019
European-Respiratory-Society (ERS) International Congress -- SEP 28-OCT 02, 2019 -- Madrid, SPAIN
Effects of sleep apnea and kidney dysfunction on objective sleep quality in nondialyzed patients with chronic kidney disease: an ESADA study
2020
Study Objectives: Patients with chronic kidney disease (CKD) often report poor sleep quality, but they commonly exhibit OSA. The aim of this study was to evaluate the influence of OSA severity and of estimated glomerular filtration rate impairment on objective sleep quality in nondialyzed patients with CKD, defined as an estimated glomerular filtration rate <60 mL/min/1.73m2. Methods: Polysomnographic sleep characteristics were compared between patients with (n = 430) and without CKD (n = 6,639) in the European Sleep Apnea Database cohort. Comparisons were repeated in 375 patients with CKD and 375 control patients without CKD matched for sleep center, age, sex, and AHI, and in 310 matche…
Cardiometabolic impact and symptom profile of obstructivesleep apnea: does gender matter?
2019
European-Respiratory-Society (ERS) International Congress -- SEP 28-OCT 02, 2019 -- Madrid, SPAIN
Clinical presentation of patients with suspected obstructive sleep apnea and self-reported physician-diagnosed asthma in the ESADA cohort.
2018
Obstructive sleep apnea (OSA) and asthma are often associated and several studies suggest a bidirectional relationship between asthma and OSA. This study analyzed the characteristics of patients with suspected OSA from the European Sleep Apnea Database according to presence/absence of physician-diagnosed asthma. Cross-sectional data in 16,236 patients (29.1% female) referred for suspected OSA were analyzed according to occurrence of physician-diagnosed asthma for anthropometrics, OSA severity and sleepiness. Sleep structure was assessed in patients studied by polysomnography (i.e. 48% of the sample). The prevalence of physician-diagnosed asthma in the entire cohort was 4.8% (7.9% in women, …
Change in weight and central obesity by positive airway pressure treatment in obstructive sleep apnea patients: longitudinal data from the ESADA coho…
2018
The effect of positive airway pressure treatment on weight and markers of central obesity in patients with obstructive sleep apnea remains unclear. We studied the change in body weight and anthropometric measures following positive airway pressure treatment in a large clinical cohort. Patients with obstructive sleep apnea with positive airway pressure treatment from the European Sleep Apnea Database registry (n = 1, 415, 77% male, age 54 ± 11 [mean ± SD] years, body mass index 31.7 ± 6.4 kg/m2, apnea–hypopnea index 37 ± 24 n per hr, Epworth Sleepiness Scale 10.2 ± 5.0) were selected. Changes in body mass index and neck/waist/hip circumferences at baseline and at follow-up visit were analyse…
Cancer prevalence is increased in females with sleep apnoea: data from the ESADA study
2019
[No abstract available]
Obstructive sleep apnoea independently predicts lipid levels: Data from the European Sleep Apnea Database
2018
Background and objective: Obstructive sleep apnoea (OSA) and dyslipidaemia are independent risk factors for cardiovascular disease. This study investigates the association between OSA and plasma lipid concentrations in patients enrolled in the European Sleep Apnea Database (ESADA) cohort. Methods: The cross-sectional analysis included 8592 patients without physician-diagnosed hyperlipidaemia or reported intake of a lipid-lowering drug (age 50.1 ± 12.7 years, 69.1% male, BMI: 30.8 ± 6.6 kg/m2, mean apnoea–hypopnoea index (AHI): 25.7 ± 25.9 events/h). The independent relationship between measures of OSA (AHI, oxygen desaturation index (ODI), mean and lowest oxygen saturation) and lipid profil…