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Zewari S, van den Borst B, van den Heuvel M, van den Elshout F, Sastry M, Vos P. Sleep Hypoventilation is Common in Diurnal Normocapnic COPD Patients with Severe or Very Severe Obstruction and is Not Associated with Body Mass Index. COPD 2023; 20:210-215. [PMID: 37486242 DOI: 10.1080/15412555.2023.2215324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 05/10/2023] [Accepted: 05/14/2023] [Indexed: 07/25/2023]
Abstract
Sleep hypoventilation (SH) is common in COPD patients with diurnal hypercapnia, however there are little data on the presence of SH in COPD patients with diurnal normocapnia. In this study the prevalence of SH in stable normocapnic COPD patients with severe or very severe obstruction (GOLD stages III and IV) was evaluated across body mass index (BMI) classes and associations between SH and body composition measures were explored. A total of 56 diurnal normocapnic COPD patients, of whom 17 normal-weight (COPDNW), 18 overweight (COPDOW) and 21 obese (COPDOB), underwent polysomnography to objectify SH and bioelectrical impedance analysis to assess body composition. The overall prevalence of SH was 66.1% and was not different across BMI classes. Logistic regression models indicated that SH was not associated with waist-to-hip ratio, body fat percentage and fat-free mass index. Our data indicate that SH is common in diurnal normocapnic COPD patients with severe or very severe obstruction and is not associated with BMI or body composition.
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Affiliation(s)
- Safir Zewari
- Department of Pulmonary Disease, Rijnstate hospital, Arnhem, The Netherlands
- Department of Pulmonary Disease, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Bram van den Borst
- Department of Pulmonary Disease, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Michel van den Heuvel
- Department of Pulmonary Disease, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Manu Sastry
- Academic Sleep Center, CIRO, Horn, The Netherlands
| | - Petra Vos
- Department of Pulmonary Disease, Rijnstate hospital, Arnhem, The Netherlands
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Liu W, Sun Y, Cui A, Xia Y, Yan Q, Song Y, Wang L, Shan G, Wang X. Electrothermal sterilization and self-powered real-time respiratory monitoring of reusable mask based on Ag micro-mesh films. NANO ENERGY 2023; 105:107987. [PMID: 36373076 PMCID: PMC9636608 DOI: 10.1016/j.nanoen.2022.107987] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/21/2022] [Accepted: 11/04/2022] [Indexed: 05/21/2023]
Abstract
Since the COVID-19 pandemic outbreaks, the utilization of medical masks plays a critical role in reducing the infected risk. However, constructing multifunctional masks to achieve simultaneously self-sterilization, reusability, and respiratory monitoring capability remains still a huge challenge. Herein, a reusable Ag micro-mesh film-based mask is proposed, which enables the capabilities of electrothermal sterilization and self-powered real-time respiratory monitoring. Highly conductive Ag micro-mesh films prepared by continuous draw spinning method demonstrate excellent electrothermal performances for thermal sterilization and serve as working electrode to fabricate triboelectric nanogenerator (TENG) for real-time respiratory monitoring, respectively. Under a low driving voltage of 3.0 V, the surface temperature of Ag micro-mesh film enables a quick increase to over 60 °C within 30 s, which endows thermal sterilization against S. aureus with antibacterial efficiency of 95.58 % within 20 min to achieve the self-sterilization of medical masks. Furthermore, a self-powered alarm system based on the fabricated TENG as respiratory monitor is developed for real-time respiratory monitoring to render a timely treatment for patients in danger of tachypnea and apnea. Consequently, this work has paved a new and practical avenue to achieve reusable multifunctional masks with capabilities of electrothermal sterilization and real-time respiratory monitoring in clinical medicine.
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Affiliation(s)
- Wenquan Liu
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Yu Sun
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Anni Cui
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Yifan Xia
- Henan Key Lab for Photovoltaic Materials, Henan University, Kaifeng 475004, China
| | - Qiuzhu Yan
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Yongxin Song
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Liangliang Wang
- Henan Key Lab for Photovoltaic Materials, Henan University, Kaifeng 475004, China
| | - Guiye Shan
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Xin Wang
- Henan Key Lab for Photovoltaic Materials, Henan University, Kaifeng 475004, China
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Lepine J, Berthier F, Lorillou M, Maincent C, Perrin C. [Impact of AMARA VIEW™ interface on upper airway during nocturnal non invasive ventilation]. Rev Mal Respir 2021; 38:980-985. [PMID: 34763958 DOI: 10.1016/j.rmr.2021.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 08/16/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Nasal masks can result in mouth leaks with implications on sleep quality. To reduce these leaks, oronasal masks are proposed. It has been shown that an oronasal mask can induce obstructive events in the upper airways (UA). Because of its fit around the nose, the Amara View™ facial mask may have less consequence on UA obstruction. METHODS This retrospective study assessed the impact of the Amara View™ mask on UA. The study was conducted on patients with chronic respiratory failure treated by home NIV with standard facial mask. Replacement of the standard facial mask by an Amara View™ mask was performed when the residual apnea hypopnea index recorded from the ventilator software exceeded 5/h. All patients underwent nocturnal respiratory polygraphy when on NIV with a standard facial mask and with an Amara View™ mask. Respiratory polygraphic traces were interpreted following the analysis methods published by the SomnoNIV Group. RESULTS Seven patients were studied. Although nocturnal oxygen saturation was similar between both masks, the index of UA obstruction without ventilatory blunting was significantly lower during NIV with the Amara View™ mask compared to the standard facial mask (P=0.01). CONCLUSIONS Nocturnal NIV using an Amara View™ facial interface may avoid UA obstruction without ventilatory command blunting.
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Affiliation(s)
- J Lepine
- Service de pneumologie, centre hospitalier Princesse-Grace, 1, avenue Pasteur, 98000 Monaco, Monaco
| | - F Berthier
- Département d'information médicale, Principauté de Monaco, centre hospitalier Princesse Grace, 1, avenue Pasteur, 98000 Monaco, Monaco
| | - M Lorillou
- Service de pneumologie, centre hospitalier Princesse-Grace, 1, avenue Pasteur, 98000 Monaco, Monaco
| | - C Maincent
- Service de pneumologie, centre hospitalier Princesse-Grace, 1, avenue Pasteur, 98000 Monaco, Monaco
| | - C Perrin
- Service de pneumologie, centre hospitalier Princesse-Grace, 1, avenue Pasteur, 98000 Monaco, Monaco.
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Montserrat Canal JM, Suárez-Girón M, Egea C, Embid C, Matute-Villacís M, de Manuel Martínez L, Orteu Á, González-Cappa J, Tato Cerdeiras M, Mediano O. Spanish Society of Pulmonology and Thoracic Surgery positioning on the use of telemedine in sleep-disordered breathing and mechanical ventilation. Arch Bronconeumol 2021; 57:281-290. [PMID: 32646601 PMCID: PMC7338031 DOI: 10.1016/j.arbres.2020.05.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/14/2020] [Accepted: 05/03/2020] [Indexed: 12/21/2022]
Abstract
The rapid introduction of new information and communication technologies into medical practice has prompted Spanish Society of Pulmonology and Thoracic SurgeryR to publish a position paper on sleep-disordered breathing, especially in relation to positive pressure treatment. It should be pointed out that the scientific literature is to some extent controversial due to a paucity of large randomized multicenter studies with long-term follow-up. Moreover, the telematics devices and systems on the market vary widely. As a result, the recommendations are based primarily on a consensus of expert professionals. Another very important aspect addressed extensively in this document is the obvious lack of regulations on legal matters and the operations of commercial companies. The most important recommendations included in this position paper are that telemedicine is primarily advocated in subjects with travel problems or who live far from the hospital, in patients with poor CPAP compliance, and in most cases treated with non-invasive mechanical ventilation. A key element is patient individualization. It is imperative that the relevant technical, legal and ethical requirements (medical device regulations, data protection, and informed consent) are met. Finally, expert professionals from our society must contribute to and become involved in spearheading this technological change.
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Affiliation(s)
- Josep M Montserrat Canal
- Unidad Multidisciplinar de Patología del Sueño y VNID, Servei Pneumologia, Institut Clínic Respiratori, Hospital Clínic, Barcelona, España; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, España; Universidad de Barcelona, Barcelona, España.
| | - Monique Suárez-Girón
- Unidad Multidisciplinar de Patología del Sueño y VNID, Servei Pneumologia, Institut Clínic Respiratori, Hospital Clínic, Barcelona, España
| | - Carlos Egea
- Unidad Funcional de Sueño, Hospital Universitario Araba, OSI Araba, Vitoria, España
| | - Cristina Embid
- Unidad Multidisciplinar de Patología del Sueño y VNID, Servei Pneumologia, Institut Clínic Respiratori, Hospital Clínic, Barcelona, España; Universidad de Barcelona, Barcelona, España
| | - Mónica Matute-Villacís
- Unidad Multidisciplinar de Patología del Sueño y VNID, Servei Pneumologia, Institut Clínic Respiratori, Hospital Clínic, Barcelona, España
| | - Luis de Manuel Martínez
- Ilustre Colegio de Abogados de Madrid (ICAM), Corte de Arbitraje de Responsabilidad Sanitaria, Madrid, España
| | - Ángel Orteu
- Consultor independiente ciencias de la salud y equipamiento médico, Proyecto Sleep Smart City Vitoria, Vitoria, España
| | | | | | - Olga Mediano
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, España; Sección de Neumología, Hospital Universitario de Guadalajara, Guadalajara, España; Departamento de Medicina, Universidad de Alcalá, Alcalá de Henares (Madrid), España
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Acute effects of noninvasive ventilation on sleep physiology in patients with moderate to severe stable chronic obstructive pulmonary disease: a pilot study. Sleep Med 2021; 80:118-125. [PMID: 33596525 DOI: 10.1016/j.sleep.2021.01.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 12/03/2020] [Accepted: 01/26/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE/BACKGROUND Changes in sleep architecture in patients with Chronic Obstructive Pulmonary Disease (COPD) can be explained by a combination of physiological changes in breathing during sleep, with impairment of respiratory mechanics and reduction of arterial oxygenation. This study aimed to evaluate the acute effects of noninvasive ventilation (NIV) - compared to spontaneous breathing - on sleep latency and stages, and on the occurrence of sleep-related respiratory events, nocturnal hypoxemia, and changes in heart rate (HR) in patients with moderate to severe stable COPD. PATIENTS/METHODS Patients completed two polysomnography (PSG) studies: one during spontaneous breathing and one while receiving NIV in bilevel mode and with backup respiratory rate (RR.) setting. Sleepware G3 software was used for the analysis of PSG and pressure, volume, and ventilator flow curves × time. RESULTS Participants were 10 female patients with a mean age of 68.1 ± 10.2 years. NIV during sleep decreased sleep onset latency (17 ± 18.8 min vs 46.8 ± 39.5 min; p = 0.02), increased REM sleep time (41.2 ± 24.7 min vs 19.7 ± 21.7 min; p = 0.03), and decreased the obstructive apnea index (OAI) (0 vs 8.7 ± 18.8; p = 0.01). Lower mean HR (66.6 ± 4.1 bpm vs 70.6 ± 5.9 bpm; p = 0.03) and lower maximum HR (84.1 ± 7.3 bpm vs 91.6 ± 7.8 bpm; p = 0.03) were observed in PSG with NIV. CONCLUSIONS The use of NIV in patients with moderate to severe stable COPD while they were sleeping increased REM sleep time and decreased sleep onset latency, the number of obstructive respiratory events, and the mean and maximum HR.
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