Positive airway pressure therapy

2017 ◽  
Author(s):  
Dirk Pevernagie
Keyword(s):  
Sleep Apnea ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Central Sleep Apnea ◽  
Upper Airway ◽  
Therapeutic Success ◽  
Pressure Therapy ◽  
Cardiovascular Comorbidity ◽  
Adaptive Servo Ventilation ◽  
Obstructive Sleep

This chapter describes positive airway pressure (PAP) therapy for sleep disordered breathing. Continuous PAP (CPAP) acts as a mechanical splint on the upper airway and is the treatment of choice for moderate to severe obstructive sleep apnea (OSA). Autotitrating CPAP may be used when the pressure demand for stabilizing the upper airway is quite variable. In other cases, fixed CPAP is sufficient. There is robust evidence that CPAP reduces the symptomatic burden and risk of cardiovascular comorbidity in patients with moderate to severe OSA. Bilevel PAP is indicated for treatment of respiratory diseases characterized by chronic alveolar hypoventilation, which typically deteriorates during sleep. Adaptive servo-ventilation is a mode of bilevel PAP used to treat Cheyne–Stokes respiration with central sleep apnea . It is crucial that caregivers help patients get used to and be compliant with PAP therapy. Education, support, and resolution of adverse effects are mandatory for therapeutic success.

scholarly journals 1244 A Curious Case of ASV Failure

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A474-A474
Author(s):  
Nishant Chaudhary ◽  
Mirna Ayache ◽  
John Carter
Keyword(s):  
Sleep Apnea ◽  
Airway Obstruction ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Central Sleep Apnea ◽  
Upper Airway ◽  
Upper Airway Obstruction ◽  
Neck Extension ◽  
Sleep Study ◽  
Obstructive Sleep

Abstract Introduction Positive airway pressure-induced upper airway obstruction has been reported with the treatment of obstructive sleep apnea (OSA) using continuous positive airway pressure (CPAP) along with an oronasal interface. Here we describe a case of persistent treatment emergent central sleep apnea (TECSA) inadequately treated with adaptive servo ventilation (ASV), with an airflow pattern suggestive of ASV-induced upper airway obstruction. Report of Case A 32-year-old male, with severe OSA (apnea hypopnea index: 52.4) and no other significant past medical history, was treated with CPAP and required higher pressures during titration sleep studies to alleviate obstructive events, despite a Mallampati Class II airway and a normal body mass index. Drug-Induced Sleep Endoscopy (DISE) showed a complete velopharynx and oropharynx anterior posterior (AP) collapse, long soft palate, which improved with neck extension. CPAP therapy, however, did not result in any symptomatic benefit and compliance reports revealed high residual AHI and persistent TECSA. He underwent an ASV titration sleep study up to a final setting of expiratory positive airway pressure 9 cm H2O, pressure support 6-15 cm H2O (auto-rate), with a full-face mask due to high oral leak associated with the nasal interface. The ASV device detected central apneas and provided mandatory breaths, but did not capture the thorax or abdomen, despite normal mask pressure tracings. Several such apneas occurred, with significant oxyhemoglobin desaturation. Conclusion We postulate that the ASV failure to correct central sleep apnea as evidenced by the absence of thoracoabdominal inspiratory effort, occurred due to ASV-induced upper airway obstruction. Further treatment options for this ASV phenomenon are to pursue an ASV-assisted DISE and determine the effectiveness of adjunctive therapy including neck extension, nasal mask with a mouth closing device and a mandibular assist device.

scholarly journals The Effect of Continuous Positive Airway Pressure Therapy on Obstructive Sleep Apnea-Related Hypertension

2021 ◽  
Vol 22 (5) ◽  
pp. 2300
Author(s):  
Ronni Baran ◽  
Daniela Grimm ◽  
Manfred Infanger ◽  
Markus Wehland
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Continuous Positive Airway Pressure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Common Disease ◽  
Cpap Therapy ◽  
Pressure Therapy ◽  
Airway Patency ◽  
Obstructive Sleep

Obstructive sleep apnea (OSA) is a common disease, with approximately 3–7% of men and 2–5% of women worldwide suffering from symptomatic OSA. If OSA is left untreated, hypoxia, microarousals and increased chemoreceptor stimulation can lead to complications like hypertension (HT). Continuous positive airway pressure (CPAP) is the most common treatment for OSA, and it works by generating airway patency, which will counteract the apnea or hypopnea. More than one billion people in the world suffer from HT, and the usual treatment is pharmacological with antihypertensive medication (AHM). The focus of this review will be to investigate whether the CPAP therapy for OSA affects HT.

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