Diagnosis and Therapy: Obstructive Sleep Respiratory Disorders.

1994 ◽  
Vol 45 (3) ◽  
pp. 211-218
Author(s):  
Koji Yamakawa ◽  
Kiyoshi Togawa ◽  
Soichiro Miyazaki ◽  
Hiroyuki Tada
Keyword(s):  
Respiratory Disorders ◽  
Diagnosis And Therapy ◽  
Obstructive Sleep

Orthodontic management of obstructive sleep-disordered respiratory disorders

2019 ◽  
Vol 90 (3-4) ◽  
pp. 321-335
Author(s):  
Pascal Garrec ◽  
Sylvie Legris ◽  
Yves Soyer ◽  
Brigitte Vi-Fane ◽  
Laurence Jordan
Keyword(s):  
Respiratory Disorders ◽  
Obstructive Sleep

scholarly journals Study of obstructive sleep apnea in respiratory disorders

2013 ◽  
Vol 4 (7) ◽  
pp. 317
Author(s):  
Rohit Ratnakar Hegde ◽  
D. H. Bhise ◽  
J. M. Phadtare ◽  
N. N. Ramraje
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Respiratory Disorders ◽  
Obstructive Sleep

Nocturnal serum melatonin levels in sulfur mustard exposed patients with sleep disorders

2017 ◽  
pp. jramc-2016-000677
Author(s):  
Seyyedeh Soghra Mousavi ◽  
E Vahedi ◽  
M Shohrati ◽  
Y Panahi ◽  
S Parvin
Keyword(s):  
Sleep Quality ◽  
Sulfur Mustard ◽  
Pulmonary Function Tests ◽  
Critical Role ◽  
Poor Sleep ◽  
Poor Sleep Quality ◽  
Respiratory Disorders ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
The Mean

BackgroundSulfur mustard (SM) exposure causes respiratory disorders, progressive deterioration in lung function and mortality in injured victims and poor sleep quality is one of the most common problems among SM-exposed patients. Since melatonin has a critical role in regulation of sleep and awareness, this study aimed to evaluate the serum melatonin levels in SM-injured subjects.MethodsA total of 30 SM-exposed male patients and 10 controls was evaluated. Sleep quality was evaluated by the Pittsburgh Sleep Quality Index (PSQI); daytime sleepiness was measured by the Epworth Sleepiness Scale (ESS), and the risk of obstructive sleep apnoea was determined by the STOP-Bang questionnaire. Polysomnography (PSG) and pulmonary function tests (PFTs) were also available. Nocturnal serum melatonin levels were measured using an ELISA kit.ResultsThe mean of PSQI, ESS and STOP-Bang scores in patients (11.76±3.56, 12.6±3.03 and 5.03±1.09, respectively) were significantly (p<0.01) higher than those in the controls (2.78±0.83, 4.69±1.15 and 1.18±0.82, respectively). PFTs also showed declined respiratory quality in SM-patients. There was a significant difference regarding the PSG results between patients and controls (p<0.01). The mean of nocturnal serum melatonin levels in patients (29.78±19.31 pg/mL) was significantly (p=0.005) lower than that in the controls (78.53±34.41 pg/mL).ConclusionsReduced nocturnal serum melatonin and respiratory disorders can be the reasons for poor sleep quality among these patients.Trial registration numberIRCT2015092924267N1, Pre-results.

scholarly journals Predictive value of respiratory parameters in patients with obstructive sleep apnea and chronic heart failure with preserved ejection fraction

2020 ◽  
Vol 101 (5) ◽  
pp. 652-660
Author(s):  
A V Yakovlev ◽  
S D Mayanskaya ◽  
S N Shilov ◽  
A T Teplyakov ◽  
I V Shirinsky ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Ejection Fraction ◽  
Clinical Course ◽  
Apnea Hypopnea Index ◽  
Preserved Ejection Fraction ◽  
Respiratory Disorders ◽  
Obstructive Apnea ◽  
Respiratory Parameters ◽  
Obstructive Sleep

Aim. To study individual functional parameters of respiration in different phases of sleep in patients with obstructive sleep apnea (OSA) and chronic heart failure with preserved ejection fraction (HFpEF) and to assess their effect on the clinical course of the disease. Methods. The study included 86 men with OSA [with an apnea-hypopnea index (AHI) 15 per hour]. Upon inclusion in the study, all patients underwent a polysomnographic study and echocardiography, the level of brain natriuretic peptide (NT-proBNP) was determined, a six-minute walk test was performed. After 12 months of prospective observation, the patients were divided into 2 groups according to the clinical course of chronic heart failure: with unfavorable (n=33) and favorable (n=53) clinical course. The prognostic significance of the studied parameters of respiration to the course of the disease was assessed by using logistic and linear regression. Results. A significant role of the following respiratory parameters as predictors of chronic heart failure progression was established: obstructive apnea-hypopnea index for the entire night sleep [odds ratio (OR) 1.04, p=0.002] and in the phase of rapid eye movement sleep (REM) (ОR 1.24, p=0.001); the index of respiratory disorders for the entire sleep period (ОR 1.06, p=0.044) and in REM sleep phase (ОR 1.25, p=0.003). For hospital readmission, the predictive role was determined for obstructive apnea/hypopnea index for REM phase (ОR 1.07, p=0.044) and index of respiratory disorders for REM phase (ОR 1.13, p=0.040). Conclusion. The prognostic value of the obstructive apnea-hypopnea index and the index of respiratory disorders for the entire night sleep and in the phase of REM sleep was revealed for patients with OSA and chronic heart failure with preserved ejection fraction, which allows considering these parameters as independent predictors of an unfavorable clinical course in this group of patients.

Sleep and respiratory disorders

2018 ◽  
Author(s):  
Bradley A. Edwards ◽  
Garun S. Hamilton
Keyword(s):  
Sleep Quality ◽  
Obstructive Sleep Apnoea ◽  
Sleep Apnoea ◽  
Poor Sleep ◽  
Respiratory Disorders ◽  
Obstructive Sleep ◽  
The Individual

A number of sleep-related breathing and respiratory disorders impact our ability to achieve a good night’s sleep. Unfortunately, these disorders are becoming increasingly common—a phenomenon that has been linked to the rising obesity rates in society. In this chapter we aim to provide an overview of how some of the most common disorders (particularly obstructive sleep apnoea) contribute to poor sleep, review how these disorders/diseases impact both the individual and society, and discuss some of the key challenges and hurdles that we, as a society, will need to overcome if we are to maximize sleep quality in the community.

scholarly journals CPAP Hardware/Simulation and Control Design for Respiratory Disorders: A Review

2021 ◽  
Vol 24 (2) ◽  
pp. 112-122
Author(s):  
Athraa Sabeeh Mikha ◽  
Hadeel K. Aljobouri
Keyword(s):  
Threshold Value ◽  
System Control ◽  
Respiratory Disorders ◽  
Obstructive Sleep ◽  
Error Ratio ◽  
Simulation Based ◽  
Pressure Stability ◽  
Evaluation Measurement ◽  
And Control ◽  
Cpap Devices

Continuous Positive Airway Pressure (CPAP) ventilation remains a mainstay treatment for different respiratory disorders. Good pressure stability and pressure reduction during exhalation are of major importance condition to ensure the clinical efficacy and comfort of CPAP therapy.  Obstructive Sleep Apnea (OSA) and today coronavirus (COVID-19) are the main two diseases mitigated by the CPAP. This paper introduced a systematic review of the CPAP design in terms of the hardware design, Simulation-based CPAP system, control algorithm, and the measured performance. The accuracy is used as measurement of performance and calculated from the pressure value. The accuracy was compared to the predefined U.S. Food and Drug Administration (FDA)-based threshold value in which it considers this value as a reference. The results related to the modern CPAP devices introduced in this study to explain the accuracy of experimental CPAP. These were compared with a commercial CPAP devices. Also, it was revealed how the results coincide with the error ratio defined by the FDA as an evaluation measurement. The FDA error ratio determines the performance of the optimized CPAP device. This work is the first review that presented the knowledge about engineering design of the CPAP system, so it will be the first in the literature.

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