scholarly journals Obstructive Sleep Apnea Syndrome does not increase the cardiovascular risk in a naïve population of southern Italy

2021 ◽  
Author(s):  
Pierluigi Carratù ◽  
Agostino di Ciaula ◽  
Silvano Dragonieri ◽  
Teresa Ranieri ◽  
Marco Ciccone ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Cardiovascular Risk ◽  
Sleep Apnea ◽  
Smoking Habit ◽  
Sleep Apnea Syndrome ◽  
Normal Weight ◽  
Gas Analysis ◽  
Arterial Blood ◽  
Obstructive Sleep ◽  
Co Morbidity

Background Obstructive Sleep Apnea (OSA) is a worldwide increasing syndrome, which, by promoting endothelial dysfunction, contributes to extend the cardiovascular risk. We evaluated the cardiovascular risk in a group of OSA patients. Methods A total of 185 OSA subjects (19 normal weight, 57 overweight, 109 obeses), seen at the Ambulatory of Sleep Disorders, during one year, entered the study. We assessed anthropometric features, polysomnographic findings, cardiovascular risk factors, smoking habit, Pulmonary Function Test, Arterial Blood Gas Analysis, Epworth Questionnaire, and Charlson Co-morbidities Index (CCI). Subjects were divided into three groups, according to their BMI: individuals with BMI ≥30 Kg/m2 (Group 1 n=109, mean age 61 ± 1; 74.3 % males), individuals with BMI ranging from 25.0 to 29.9 Kg/m2 defined as overweight subjects (Group 2 n=57, mean age 58.8 ± 1.4; 77% males) and subjects with a BMI ranging from 18.5 to 24.9 Kg/m2 defined normal weight subjects (Group 3 n=19, mean age 54.2 ± 2.3; 64,2% males). Results In the whole population, the percentage cardiovascular risk was weakly related with BMI (r=0.33; P<0.001), but not with AHI. The cardiovascular risk was strictly related to the obesity (p<0.00002), while the Epworth Questionnaire score and the Charlson Co-morbidity Index were respectively statistically higher in the group of obese individuals (p=0.006, p=0.00002) than in the other 2 Groups. When AHI values were stratified in tertiles, the percentage cardiovascular risk did not vary with increasing AHI values (Figure 2). Conclusions Further studies are required to investigate the pivotal role of inflammation due to obesity, and underlying increased cardiovascular risk in OSA patients.

scholarly journals Evaluation of endothelial function and cardiovascular risk in non-obese patients with slight degree of obstructive sleep apnea syndrome

2017 ◽  
Vol 87 (3) ◽  
Author(s):  
Fiorella Devito ◽  
Annapaola Zito ◽  
Silvano Dragonieri ◽  
Pierluigi Carratù ◽  
Vitaliano N. Quaranta ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Cardiovascular Risk ◽  
Sleep Apnea ◽  
Endothelial Function ◽  
Obstructive Sleep Apnea Syndrome ◽  
Sleep Apnea Syndrome ◽  
Intima Media Thickness ◽  
Obese Patients ◽  
Obstructive Sleep ◽  
Apnea Syndrome

Recently, it has been clearly described an independent relationship between obstructive sleep apnea syndrome (OSAS) and cardiovascular risk, with underlying mechanisms also including endothelial dysfunction. We enrolled 32 consecutive non-obese patients (mean age of 39.5±11.5 years), of which 16 with mild OSAS and 16 snoring without OSAS. Mild OSAS is defined by an AHI index between 5 and 15. We have investigated if whether there was a relationship between mild OSAS, endothelial function and carotid intima-media thickness (C-IMT). The population was divided into two groups: Group 1 (16 simple snorer patients with an average age of 39.4±12.1 years) and Group 2 (16 subjects with mild OSAS with an average age of 39.6±11.2 years). Each group underwent cardiovascular investigation including measurement of flow-mediated dilation (FMD) of the brachial artery and C-IMT. Both groups comprised non-obese subjects. Patients with mild OSAS had serum total cholesterol values statistically significantly higher than simple snores patients (178.6±24.9 vs 159.2±25.3; p=0.038). OSAS patients had also a trend towards higher values of maximum C-IMT compared to simple snorer patients (0.70±0.15 vs 0.65±0.16), although below the level of significance. Between the two groups, no difference was found for FMD values. The present results on mild OSAS strengthen the importance of a diagnosis of OSAS as soon as possible, in order to encourage all primary prevention interventions to correct risk factors responsible for disease progression and the occurrence of cardiovascular diseases, not excluding the use of therapies of non-invasive ventilation even in the early stages of the disease.

Sex-Related Differences in Polygraphic Parameters in a Population of Patients with Obstructive Sleep Apnea Syndrome

2021 ◽  
Vol 20 ◽  
Author(s):  
Laura Buratti ◽  
Chiara Rocchi ◽  
Viviana Totaro ◽  
Serena Broggi ◽  
Simona Lattanzi ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Cardiovascular Risk ◽  
Sleep Apnea ◽  
Sleep Quality ◽  
Obstructive Sleep Apnea Syndrome ◽  
Sleep Apnea Syndrome ◽  
Men And Women ◽  
Autonomic Changes ◽  
Obstructive Sleep ◽  
Apnea Syndrome

Background: Sex-related differences in the prevalence and clinical presentation of Obstructive Sleep Apnea Syndrome (OSAS) have been widely documented. The aim of this study was to investigate the influence of patients’ sex on polygraphic parameters with particular attention to sleep autonomic changes in a population of OSAS patients. Methods: Sixty OSAS patients aged 55-65 years (30 men, 30 women) were enrolled. Sleep quality was assessed with the Pittsburgh Sleep Quality Index (PSQI) and daytime sleepiness with the Epworth Sleepiness Scale (ESS). The presence of respiratory events and autonomic changes during the night was investigated by polygraphy. Results : Similar main cardiovascular risk factors prevalence was observed in both men and women. We observed a significant difference in PSQI (higher in women, p=0.0001) and ESS (higher in men, p=0.004) scores. Snoring (p=0.033), supine AHI (p=0.004), T90 (p=0.021), LO2 (p=0.0001), LF/HF ratio and LF (p=0.0001) were significantly higher in men. Sex differences in PSQI mean score and LF/HF ratio variability were preserved in all the subgroups of OSA severity. Conclusion: The influence of sex in modulating cardiovascular risk is a widely discussed topic. In our study, men showed more severe polygraphic parameters and an increase in LF/HF ratio compared to women. The results of our investigation suggest the relevance of delivering information about the different expressions of OSAS in men and women in order to improve diagnostic skills and in-depth prevention approaches.

scholarly journals Aortic Pressure Augmentation as a Marker of Cardiovascular Risk in Obstructive Sleep Apnea Syndrome

2008 ◽  
Vol 31 (6) ◽  
pp. 1109-1114 ◽  
Author(s):  
Akiko NODA ◽  
Seiichi NAKATA ◽  
Hiroshi FUKATSU ◽  
Yoshinari YASUDA ◽  
Etsuko MIYAO ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Cardiovascular Risk ◽  
Sleep Apnea ◽  
Obstructive Sleep Apnea Syndrome ◽  
Sleep Apnea Syndrome ◽  
Aortic Pressure ◽  
Obstructive Sleep ◽  
Apnea Syndrome

Physiological determinants of nocturnal arterial oxygenation in patients with obstructive sleep apnea

1985 ◽  
Vol 59 (5) ◽  
pp. 1364-1368 ◽  
Author(s):  
T. D. Bradley ◽  
D. Martinez ◽  
R. Rutherford ◽  
F. Lue ◽  
R. F. Grossman ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Linear Regression Analysis ◽  
Gas Analysis ◽  
Apnea Hypopnea Index ◽  
Pulmonary Mechanics ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
Nocturnal Hypoxemia ◽  
Obstructive Sleep

Among patients with similar degrees of obstructive sleep apnea (OSA) there is considerable variability in the degree of associated nocturnal hypoxemia. The factors responsible for this variability have not been clearly defined. Therefore we studied 44 patients with OSA to identify the physiological determinants of nocturnal arterial O2 saturation (SaO2). All patients underwent pulmonary function testing, arterial blood gas analysis, and overnight polysomnography. Mean nocturnal SaO2 ranged from 96 to 66% and apnea-hypopnea index from 11 to 128 per hour of sleep. Several anthropometric, respiratory physiological, and polysomnographic variables that could be expected to influence nocturnal SaO2 were entered into a stepwise multiple linear regression analysis, with mean nocturnal SaO2 as the dependent variable. Three variables [awake supine arterial PO2 (PaO2), expiratory reserve volume, and percentage of sleep time spent in apnea] were found to correlate strongly with mean nocturnal SaO2 (multiple R, 0.854; P less than 0.0001) and accounted for 73% of its variability among patients. Body weight, other lung volumes, and airflow rates influenced awake PaO2 and expiratory reserve volume but had no independent influence on nocturnal SaO2. In a further group of 15 patients with OSA a high correlation was obtained between measured nocturnal SaO2 and that predicted by the model (r = 0.87; P less than 0.001). We conclude that derangements of pulmonary mechanics and awake PaO2 (generally attributable to obesity and diffuse airway obstruction) are of major importance in establishing the severity of nocturnal hypoxemia in patients with OSA.

scholarly journals Effect of arterial blood bicarbonate (HCO3−) concentration on the accuracy of STOP-Bang questionnaire screening for obstructive sleep apnea

2021 ◽  
Author(s):  
Chong Pei ◽  
Shuyu Gui
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Sensitivity And Specificity ◽  
Statistical Significance ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Apnea Hypopnea Index ◽  
Berlin Questionnaire ◽  
Arterial Blood ◽  
Obstructive Sleep

Abstract Background To evaluate the effect of arterial bicarbonate (HCO3−) concentration on the accuracy of STOP-Bang questionnaire (SBQ) screening for obstructive sleep apnea (OSA). Methods A total of 144 patients with suspected OSA were included. Polysomnograms (PSG) and blood gas analysis were performed, and the Epworth Sleepiness Scale (ESS), STOP-Bang questionnaire, and Berlin questionnaire were completed. The correlation between the arterial HCO3− concentration, apnea hypopnea index (AHI), and other related indicators was analyzed. The scoring results of the ESS, SBQ, and Berlin questionnaire were compared with the PSG results, and the sensitivity and specificity were calculated in the form of a four-cell table. The changes in the sensitivity and specificity of OSA screening after SBQ alone and combined with HCO3− concentration were compared, and ROC curves were drawn. Results Arterial HCO3− concentration was positively correlated with AHI (r = 0.537, P < 0.001). The ratio of HCO3− concentration ≥ 24.6 mmol/L in the non-OSA group was significantly lower than that in the OSA group (25.0% VS 80.8%, P < 0.001). The sensitivity of the SBQ was higher than that of the ESS (97.5% VS 81.7%, P < 0.001) and the Berlin questionnaire (97.5% VS 79.2%, P < 0.001). There was no statistical significance in the specificity of the three scales (25%, 37.5%, 37.5%). A combined SBQ score ≥ 3 and HCO3− concentration ≥ 24.6 mmol/L showed increased specificity and decreased sensitivity compared with an SBQ score ≥ 3 alone, with a corresponding AUC of 0.771 (P < 0.01) and 0.613 (P > 0.05), respectively. Conclusion The sensitivity of the SBQ was better than that of the Berlin questionnaire and ESS. After combining arterial blood HCO3− concentration, the SBQ questionnaire increased the specificity of OSA prediction and decreased the sensitivity, which improved the accuracy of screening.

scholarly journals OBSTRUCTIVE SLEEP APNEA SYNDROME AS CARDIOVASCULAR RISK FACTOR ASSOCIATED WITH HYPERURICEMIA

2021 ◽  
Vol 39 (Supplement 1) ◽  
pp. e397-e398
Author(s):  
Ruth Skvortsova ◽  
Kristina Anisimova ◽  
Viktoria Pavlova ◽  
Anna Obukhova ◽  
Kristina Popova ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Risk Factor ◽  
Cardiovascular Risk ◽  
Sleep Apnea ◽  
Obstructive Sleep Apnea Syndrome ◽  
Cardiovascular Risk Factor ◽  
Sleep Apnea Syndrome ◽  
Obstructive Sleep ◽  
Apnea Syndrome

scholarly journals Predictors of visceral obesity in normal weight obstructive sleep apnea patients

2019 ◽  
Vol 16 (2) ◽  
pp. 29-35
Author(s):  
Tatyana O. Brodovskaya ◽  
Egor A. Kovin ◽  
Oxana V. Bazhenova ◽  
Irina F. Grishina ◽  
Tatiana F. Peretolchina
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Sleep Apnea Syndrome ◽  
Visceral Obesity ◽  
Normal Weight ◽  
Main Group ◽  
Control Group ◽  
Obstructive Sleep ◽  
Normal Body Weight ◽  
Apnea Syndrome

BACKGROUND: Obstructive sleep apnea syndrome (OSAS) is epidemiologically related to adverse cardiovascular outcomes. The pathophysiology clues are metabolic changes and obesity. The most studied anthropometric predictors of obesity, such as body mass index (BMI), waist circumference (WC), are influenced by various factors such as sex, type of constitution, hydration balance. The normal range of BMI and WC limits the diagnostic search for metabolic disturbances and visceral obesity in patients with respiratory sleep distress and can lead to increased cardiovascular risks. AIMS: to investigate the visceral obesity predictors in normal weight patients with obstructive sleep apnea syndrome. MATERIALS AND METHODS: We had performed а cross-sectional study, 68 patients were examined with mean age of 38.24 7.4 years. The main group (38 individuals) was represented by patients with OSAS. The control group consisted of healthy individuals without OSAS. Alternative markers of visceral obesity, such as lipid accumulation products, visceral obesity index, conicity index have been studied. RESULTS: In the main group we found different disorders of lipid metabolism such as the increase in triglyceride levels by 94%, low-density lipids by 32%, total cholesterol by 10% compared with the control group. Anthropometric evidence was obtained for excessive fat accumulation in patients with normal body weight and OSAS: WC was 89.6 5.7 cm in the main group and was higher than in the control group 83.7 6.3 cm (p = 0.024) due to an increase in the visceral fat compartment, as evidenced by the conicity index (67.2 7.0 and 59.3 6.2 respectively, p = 0.032) and waist to height ratio (0.58 0.05 and 0.53 0.04 in the main and control groups, respectively, p = 0.041). Correlation relationships between the severity of sleep apnea syndrome and visceral obesity indicators were revealed. CONCLUSIONS: Normal weight patients with breathing disorders are at risk of visceral fat obesity and, thereby, increased cardiovascular risk. Assessment of additional markers of visceral obesity in patients with normal body weight and sleep apnea is recommended to include in the dynamic observation programms.

Sign in / Sign up

Export Citation Format

Share Document