Review Article
Oxygen-Conserving Systems: A Forgotten Resource
Diego Castillo
, Rosa Güell, Pere Casan
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dcastillo@santpau.es
Correspondence: Dr. D. Castillo. Departamento de Neumología. Hospital de la Santa Creu i Sant Pau. Sant Antoni M. Claret, 167. 08025 Barcelona. Espafia
Correspondence: Dr. D. Castillo. Departamento de Neumología. Hospital de la Santa Creu i Sant Pau. Sant Antoni M. Claret, 167. 08025 Barcelona. Espafia
Departamento de Neumología, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
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Espafia" ] ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2006-04-11" "fechaAceptado" => "2006-05-16" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Key words" "identificador" => "xpalclavsec154586" "palabras" => array:4 [ 0 => "Oxygen conservation" 1 => "Transtracheal catheter" 2 => "Reservoir cannula" 3 => "Demand oxygen delivery systems" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec154585" "palabras" => array:4 [ 0 => "Ahorro de oxígeno" 1 => "Catéter transtraqueal" 2 => "Cánulas reservorio" 3 => "Sistemas a demanda" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:1 [ "resumen" => "<p class="elsevierStyleSimplePara elsevierViewall">Oxygen-conserving devices include transtracheal catheters, reservoir cannulas, and demand oxygen delivery systems. They are designed to extend the amount of time portable oxygen cylinders will last and correct hypoxemia with a lower flow of oxygen. Transtracheal catheters increase the fraction of inspired oxygen by delivering oxygen directly to the trachea, bypassing the dead space of the oropharynx and improving the efficiency of the upper airway as a reservoir. Reservoir cannulas increase the fraction of inspired oxygen at the beginning of the inspiratory phase. Demand oxygen delivery systems have a valve that is activated during inspiration, meaning that oxygen is only delivered during this stage of the respiratory cycle. Each system has advantages and disadvantages arising from differing design features. Prescription should be based on individual tests in all cases to ensure optimal oxygen delivery during rest, exercise, and sleep.</p>" ] "es" => array:1 [ "resumen" => "<p class="elsevierStyleSimplePara elsevierViewall">Los sistemas de ahorro de oxígeno agrupan el catéter transtraqueal, las cánulas reservorio y los sistemas a demanda. Su objetivo es aumentar la autonomía de las fuentes de oxígeno portátiles consiguiendo una corrección de la hi-poxemia con menor flujo de oxígeno. El catéter transtraqueal aumenta la fracción inspiratoria de oxígeno al proporcionar oxígeno directamente en la tráquea, lo que evita el espacio muerto de la cavidad orofaríngea y favorece que la vía aérea superior actúe como reservorio. Las cánulas reservorio au-mentan la fracción inspiratoria de oxígeno al inicio de la ins-piración. Los sistemas a demanda cuentan con una válvula que se activa con la inspiración, de modo que se administra oxígeno sólo durante esta fase del ciclo respiratorio. Debido a sus diferentes características, cada sistema presenta venta-jas e inconvenientes. 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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 3 | 4 | 7 |
| 2024 October | 29 | 35 | 64 |
| 2024 September | 34 | 43 | 77 |
| 2024 August | 46 | 51 | 97 |
| 2024 July | 28 | 22 | 50 |
| 2024 June | 47 | 27 | 74 |
| 2024 May | 41 | 31 | 72 |
| 2024 April | 24 | 35 | 59 |
| 2024 March | 23 | 16 | 39 |
| 2024 February | 24 | 22 | 46 |
| 2023 March | 2 | 0 | 2 |
| 2023 February | 22 | 18 | 40 |
| 2023 January | 33 | 25 | 58 |
| 2022 December | 29 | 30 | 59 |
| 2022 November | 20 | 25 | 45 |
| 2022 October | 29 | 22 | 51 |
| 2022 September | 20 | 25 | 45 |
| 2022 August | 18 | 37 | 55 |
| 2022 July | 28 | 38 | 66 |
| 2022 June | 21 | 27 | 48 |
| 2022 May | 24 | 33 | 57 |
| 2022 April | 22 | 50 | 72 |
| 2022 March | 23 | 42 | 65 |
| 2022 February | 17 | 30 | 47 |
| 2022 January | 25 | 35 | 60 |
| 2021 December | 20 | 46 | 66 |
| 2021 November | 20 | 51 | 71 |
| 2021 October | 24 | 47 | 71 |
| 2021 September | 20 | 58 | 78 |
| 2021 August | 14 | 31 | 45 |
| 2021 July | 12 | 26 | 38 |
| 2021 June | 22 | 27 | 49 |
| 2021 May | 28 | 38 | 66 |
| 2021 April | 78 | 39 | 117 |
| 2021 March | 28 | 29 | 57 |
| 2021 February | 20 | 29 | 49 |
| 2021 January | 12 | 19 | 31 |
| 2020 December | 17 | 14 | 31 |
| 2020 November | 7 | 9 | 16 |
| 2020 October | 15 | 9 | 24 |
| 2020 September | 12 | 3 | 15 |
| 2020 August | 16 | 11 | 27 |
| 2020 July | 17 | 15 | 32 |
| 2020 June | 11 | 3 | 14 |
| 2020 May | 18 | 19 | 37 |
| 2020 April | 14 | 12 | 26 |
| 2020 March | 12 | 9 | 21 |
| 2020 February | 17 | 12 | 29 |
| 2020 January | 19 | 15 | 34 |
| 2019 December | 20 | 8 | 28 |
| 2019 November | 6 | 9 | 15 |
| 2019 October | 4 | 5 | 9 |
| 2019 September | 13 | 14 | 27 |
| 2019 August | 8 | 12 | 20 |
| 2019 July | 15 | 20 | 35 |
| 2019 June | 10 | 14 | 24 |
| 2019 May | 23 | 10 | 33 |
| 2019 April | 47 | 29 | 76 |
| 2019 March | 19 | 26 | 45 |
| 2019 February | 14 | 7 | 21 |
| 2019 January | 9 | 12 | 21 |
| 2018 December | 9 | 13 | 22 |
| 2018 November | 24 | 9 | 33 |
| 2018 October | 18 | 14 | 32 |
| 2018 September | 8 | 14 | 22 |
| 2018 May | 6 | 0 | 6 |
| 2018 April | 4 | 6 | 10 |
| 2018 March | 3 | 2 | 5 |
| 2018 February | 5 | 9 | 14 |
| 2018 January | 4 | 6 | 10 |
| 2017 December | 4 | 13 | 17 |
| 2017 November | 2 | 4 | 6 |
| 2017 October | 3 | 8 | 11 |
| 2017 September | 3 | 4 | 7 |
| 2017 August | 5 | 16 | 21 |
| 2017 July | 1 | 12 | 13 |
| 2017 June | 9 | 14 | 23 |
| 2017 May | 5 | 7 | 12 |
| 2017 April | 6 | 10 | 16 |
| 2017 March | 1 | 5 | 6 |
| 2017 February | 1 | 5 | 6 |
| 2017 January | 2 | 3 | 5 |
| 2016 December | 6 | 3 | 9 |
| 2016 November | 6 | 6 | 12 |
| 2016 October | 12 | 3 | 15 |
| 2016 September | 12 | 9 | 21 |
| 2016 August | 9 | 3 | 12 |
| 2016 July | 1 | 0 | 1 |
| 2016 March | 1 | 0 | 1 |
| 2016 February | 1 | 0 | 1 |
| 2015 December | 2 | 0 | 2 |
| 2015 October | 179 | 6 | 185 |
| 2015 September | 183 | 5 | 188 |
| 2015 August | 185 | 7 | 192 |
| 2015 July | 214 | 7 | 221 |
| 2015 June | 136 | 6 | 142 |
| 2015 May | 157 | 9 | 166 |
| 2015 April | 150 | 7 | 157 |
| 2015 March | 168 | 8 | 176 |
| 2015 February | 141 | 7 | 148 |
| 2015 January | 179 | 5 | 184 |
| 2014 December | 144 | 5 | 149 |
| 2014 November | 272 | 10 | 282 |
| 2014 October | 344 | 9 | 353 |
| 2014 September | 256 | 8 | 264 |
| 2014 August | 203 | 10 | 213 |
| 2014 July | 191 | 11 | 202 |
| 2014 June | 159 | 5 | 164 |
| 2014 May | 146 | 13 | 159 |
| 2014 April | 166 | 6 | 172 |
| 2014 March | 143 | 10 | 153 |
| 2014 February | 124 | 8 | 132 |
| 2014 January | 105 | 11 | 116 |
| 2013 December | 102 | 13 | 115 |
| 2013 November | 96 | 11 | 107 |
| 2013 October | 100 | 4 | 104 |
| 2013 September | 91 | 8 | 99 |
| 2013 August | 89 | 11 | 100 |
| 2013 July | 96 | 12 | 108 |
| 2013 June | 87 | 7 | 94 |
| 2013 May | 82 | 4 | 86 |
| 2013 April | 48 | 6 | 54 |
| 2013 March | 13 | 2 | 15 |
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