scholarly journals Positional Therapy in a Patient With Refractory Treatment-Emergent Central Sleep Apnea

2021 ◽  
Vol 18 (3) ◽  
pp. 182-185
Author(s):  
William Palmer ◽  
Miriam Jaziri ◽  
Maria Tovar
Keyword(s):  
Sleep Apnea ◽  
Airway Pressure ◽  
Hypoglossal Nerve ◽  
Positive Airway Pressure ◽  
Central Sleep Apnea ◽  
Treatment Modalities ◽  
Positional Therapy ◽  
Respiratory Events ◽  
Obstructive Sleep ◽  
Sleep Apnea Treatment

Treatment-emergent central sleep apnea (TE-CSA) is commonly encountered during the treatment for obstructive sleep apnea (OSA) with positive airway pressure (PAP) and usually remains self-limited. Persistent TE-CSA is sporadically seen with PAP therapy and has only rarely been described with hypoglossal nerve stimulation (HGNS). We report the case of a 60-year-old female patient with moderate OSA that progressed to TE-CSA with PAP therapy. A prolonged trial with PAP therapy was limited because the patient experienced recurrent aerophagia and subsequently underwent HGNS implantation. HGNS titration led to improved control of the patient’s OSA, but TE-CSA recurred and demonstrated a strong positional component. Lateral positional therapy was implemented with adequate control of respiratory events. TE-CSA can persist throughout different treatment modalities, including HGNS. The patient’s successful lateral sleep therapy for persistent and positionally exacerbated TE-CSA demonstrates the benefit of a well-known sleep apnea treatment for this poorly understood condition.

Obstructive Sleep Apnea: Diagnosis and Management

2020 ◽  
Author(s):  
Diane C Lim ◽  
Richard J Schwab
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Nerve Stimulation ◽  
Airway Pressure ◽  
Hypoglossal Nerve ◽  
Positive Airway Pressure ◽  
Oral Appliances ◽  
Craniofacial Abnormalities ◽  
Obstructive Sleep ◽  
Line Of Therapy

As part 2 of three chapters on sleep disordered breathing, this chapter reviews obstructive sleep apnea (OSA) diagnosis and management. OSA should be considered in all patients who have loud habitual snoring, excessive daytime sleepiness, and witnessed apneas. On physical examination, craniofacial abnormalities that can lead to sleep apnea include retrognathia, micrognathia, a narrow hard palate, nasal obstruction, an overjet, and an overbite. Enlargement of the upper airway soft tissue structures (the tongue, soft palate, lateral walls, and parapharyngeal fat pads) also increases the risk of OSA. The gold standard for making the diagnosis of OSA is overnight polysomnography, but home sleep apnea tests (HSAT) are rapidly gaining acceptance, especially in patients with a high probability of OSA. The first line of therapy for OSA remains positive airway pressure (PAP), with the second line of therapy being oral appliances. Another alternative to PAP therapy is hypoglossal nerve stimulation, which has been shown to decrease the Apnea-Hypopnea index by 67.4%. This review contains 6 figures, 3 tables, and 52 references. Key Words: craniofacial abnormalities, Epworth Sleepiness Scale, home sleep apnea test, hypoglossal nerve stimulation, obstructive sleep apnea, oral appliances, oral pharyngeal crowding, polysomnography, positive airway pressure, STOP-BANG

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.

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 0551 Therapeutic Positive Airway Pressure Level Predicts Response to Hypoglossal Nerve Stimulation for Obstructive Sleep Apnea

SLEEP ◽  
2019 ◽  
Vol 42 (Supplement_1) ◽  
pp. A220-A220
Author(s):  
Clara H Lee ◽  
Everett G Seay ◽  
Benjamin K Walters ◽  
Nicholas J Scalzitti ◽  
Raj C Dedhia
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Nerve Stimulation ◽  
Airway Pressure ◽  
Hypoglossal Nerve ◽  
Positive Airway Pressure ◽  
Pressure Level ◽  
Hypoglossal Nerve Stimulation ◽  
Obstructive Sleep
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