Non-Invasive Ventilation in Alveolar Obesity-Hypoventilation Syndrome

Author(s):  
Rute Pires

Obesity is the main risk factor for several sleep breathing disorders, including obstructive sleep apnea syndrome (OSAS), either alone or associated with chronic obstructive pulmonary disease (COPD), and alveolar obesity-hypoventilation syndrome (AOHS). In several of these conditions, the indicated treatment includes the use of non-invasive ventilation during sleep, such as the use of continuous positive airway pressure (continuous positive airway pressure or CPAP) and two-level pressure (BIPAP, bi-level positive airway pressure). In this chapter, a brief review is made of what the most recent studies say regarding the treatment of SOHA with non-invasive ventilation (NIV), comparing different ventilation modes and/or treatments.

Author(s):  
Rajat Agarwal ◽  
Rishi Kumar Saini ◽  
Aseem Rajpal ◽  
Rajesh Agrawal ◽  
Amit Kumar

Background: Recent times have seen the rise in obstructive sleep apnea syndrome/obesity hypoventilation syndrome (OSAS/OHS) patients across the globe. Availability of sleep study centers, questionnaires, and more awareness have made the diagnosis of OSAS/OHS early. But still, the majority of patients suffer from morbidity associated with OSAS/OHS despite the better diagnosis, the most common cause being non-adherence to (CPAP). This needs to be addressed more vigilantly and with utmost importance for successful management of OSAS/OHS.Methods: This is an observational study, we selected patients by reviewing sleep study records at a tertiary care center (Rohilkhand medical college and hospital) in Bareilly, India. All diagnosed patients with OSAS/OHS (i.e. AHI >5) were telephoned and enquired about symptoms and non-invasive ventilation (NIV) use. They were evaluated using a self-designed questionnaire.Results: In our study, we had total of 49 OSAS/OHS patients with mean age of 50.6 years and mean BMI of 35.63. Male patients were 37 (75.5%) and at the time of diagnosis AHI (mean) was 60.67 events/hour. In NIV users there were 24 patients (48.97%), 22 patients (91.7%) feel they have been benefitted from CPAP and 2 patients (8.3%) do not feel benefit from CPAP (NIV) use. Among NIV users there was significant drop of AHI (mean) to 8.07. Among NIV users there was a reduction in symptoms like excessive day time sleepiness in 18 patients (81.81%), witnessed apnea in 15 patients (88.23%), snoring in 21 patients (91.30%), blood pressure in 3 patients (21.42%), blood sugar levels in 2 patients (20%), morning headache in 5 patients (83.30%), depressive mood in 2 patients (40%), perceived memory loss in 3 patients (33.3%), sense of choking in 17 patients (94.4%) and weight loss in 19 patients (76%).Conclusions: CPAP significantly improves symptoms and provides objective as well as subjective benefit to OSAS/OHS patients but still significant proportion of patients hesitate to initiate the therapy. Poor education/awareness regarding OSAS/OHS and non-availability of affordable CPAP remains the leading cause of non-compliance. There is a need for early education, reinforcement and affordable CPAP therapy.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Arash Malakian ◽  
Mohammad Reza Aramesh ◽  
Mina Agahin ◽  
Masoud Dehdashtian

Abstract Background The most common cause of respiratory failure in premature infants is respiratory distress syndrome. Historically, respiratory distress syndrome has been treated by intratracheal surfactant injection followed by mechanical ventilation. In view of the risk of pulmonary injury associated with mechanical ventilation and subsequent chronic pulmonary lung disease, less invasive treatment modalities have been suggested to reduce pulmonary complications. Methods 148 neonates (with gestational age of 28 to 34 weeks) with respiratory distress syndrome admitted to Imam Khomeini Hospital in Ahwaz in 2018 were enrolled in this clinical trial study. 74 neonates were assigned to duo positive airway pressure (NDUOPAP) group and 74 neonates to nasal continuous positive airway pressure (NCPAP) group. The primary outcome in this study was failure of N-DUOPAP and NCPAP treatments within the first 72 h after birth and secondary outcomes included treatment complications. Results there was not significant difference between DUOPAP (4.1 %) and NCPAP (8.1 %) in treatment failure at the first 72 h of birth (p = 0.494), but non-invasive ventilation time was less in the DUOPAP group (p = 0.004). There were not significant differences in the frequency of patent ductus arteriosus (PDA), pneumothorax, intraventricular hemorrhage (IVH) and bronchopulmonary dysplasia (BPD), apnea and mortality between the two groups. Need for repeated doses of surfactant (p = 0.042) in the NDUOPAP group was significantly lower than that of the NCPAP group. The duration of oxygen therapy in the NDUOPAP group was significantly lower than that of the NCPAP group (p = 0.034). Also, the duration of hospitalization in the NDUOPAP group was shorter than that of the NCPAP group (p = 0.002). Conclusions In the present study, DUOPAP compared to NCPAP did not reduce the need for mechanical ventilation during the first 72 h of birth, but the duration of non-invasive ventilation and oxygen demand, the need for multiple doses of surfactant and length of stay in the DUOPAP group were less than those in the CPAP group. Trial registration IRCT20180821040847N1, Approved on 2018-09-10.


Pneumologie ◽  
2021 ◽  
Author(s):  
Wolfram Windisch ◽  
Bernd Schönhofer ◽  
Daniel Sebastian Majorski ◽  
Maximilian Wollsching-Strobel ◽  
Carl-Peter Criée ◽  
...  

ZusammenfassungIn der Corona-Pandemie werden zunehmend nicht-invasive Verfahren zur Behandlung des akuten hypoxämischen Versagens bei COVID-19 eingesetzt. Hier stehen mit der HFOT (high-flow oxygen therapy), CPAP (continuous positive airway pressure) und der NIV (non-invasive ventilation) unterschiedliche Verfahren zur Verfügung, die das Ziel einer Intubationsvermeidung verfolgen. Der aktuelle Übersichtsartikel fasst die heterogene Studienlage zusammen. Wesentlich ist die Erkenntnis, dass diese nicht-invasiven Verfahren durchaus auch bei einem schweren, akuten hypoxämischen Versagen erfolgreich sein können und damit die Intubation wie auch Tubus-assoziierte Komplikationen vermeiden können. Demgegenüber bleibt aber ebenso zu betonen, dass die prolongierte unterstützte Spontanatmung ebenfalls zu Komplikationen führt und dass demzufolge insbesondere ein spätes NIV-Versagen mit erheblich verschlechterter Prognose einhergeht, was vor dem Hintergrund weiterhin hoher NIV-Versagensraten in Deutschland bedeutsam ist. Der aktuelle Artikel verweist schließlich auch auf einen Parallelartikel in dieser Ausgabe, der die medial in der Öffentlichkeit in Deutschland geführte Debatte zu diesem Thema aufgreift und deren inhaltliche Fragwürdigkeit, aber auch die negativen Auswirkungen auf die Gesellschaft und die Fachwelt adressiert. Gleichzeitig wird die Bedeutung von regelmäßig zu überarbeitenden Leitlinien untermauert.


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