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Conservative oxygen therapy in mechanically ventilated patients following cardiac arrest: A retrospective nested cohort study

Eastwood, Glenn M ; Tanaka, Aiko ; Espinoza, Emilo Daniel Valenzuela ; Peck, Leah ; Young, Helen ; Mårtensson, Johan ; Zhang, Ling ; Glassford, Neil J ; Hsiao, Yu-Feng Frank ; Suzuki, Satoshi ; Bellomo, Rinaldo

Resuscitation, 2016-04, Vol.101, p.108-114 [Periódico revisado por pares]

Ireland: Elsevier Ireland Ltd

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Título:
Conservative oxygen therapy in mechanically ventilated patients following cardiac arrest: A retrospective nested cohort study
Autor: Eastwood, Glenn M ; Tanaka, Aiko ; Espinoza, Emilo Daniel Valenzuela ; Peck, Leah ; Young, Helen ; Mårtensson, Johan ; Zhang, Ling ; Glassford, Neil J ; Hsiao, Yu-Feng Frank ; Suzuki, Satoshi ; Bellomo, Rinaldo
Assuntos: Aged ; Cardiac arrest ; Cohort Studies ; Conservative Treatment ; Emergency ; Female ; Heart Arrest - therapy ; Humans ; Intensive care ; Male ; Mechanical ventilation ; Medicin och hälsovetenskap ; Middle Aged ; Mortality ; Outcome ; Oxygen ; Oxygen Inhalation Therapy ; Respiration, Artificial ; Retrospective Studies
É parte de: Resuscitation, 2016-04, Vol.101, p.108-114
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: Abstract Background In mechanically ventilated (MV) cardiac arrest (CA) survivors admitted to the intensive care unit (ICU) avoidance of hypoxia is considered crucial. However, avoidance of hyperoxia may also be important. A conservative approach to oxygen therapy may reduce exposure to both. Methods We evaluated the introduction of conservative oxygen therapy (target SpO2 88–92% using the lowest FiO2 ) during MV for resuscitated CA patients admitted to the ICU. Results We studied 912 arterial blood gas (ABG) datasets: 448 ABGs from 50 ‘conventional’ and 464 ABGs from 50 ‘conservative’ oxygen therapy patients. Compared to the conventional group, conservative group patients had significantly lower PaO2 values and FiO2 exposure ( p < 0.001, respectively); more received MV in a spontaneous ventilation mode (18% vs 2%; p = 0.001) and more were exposed to a FiO 2 of 0.21 (19 vs 0 patients, p = 0.001). Additionally, according to mean PaO2 , more conservative group patients were classified as normoxaemic (36 vs 16 patients, p < 0.01) and fewer as hyperoxaemic (14 vs 33 patients, p < 0.01). Finally, ICU length of stay was significantly shorter for conservative group patients ( p = 0.04). There was no difference in the proportion of survivors discharged from hospital with good neurological outcome (14/23 vs 12/22 patients, p = 0.67). Conclusions Our findings provide preliminary support for the feasibility and physiological safety of conservative oxygen therapy in patients admitted to ICU for MV support after cardiac arrest (Trial registration, NCT01684124 ).
Editor: Ireland: Elsevier Ireland Ltd
Idioma: Inglês

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Conservative oxygen therapy in mechanically ventilated patients following cardiac arrest: A retrospective nested cohort study

Eastwood, Glenn M ; Tanaka, Aiko ; Espinoza, Emilo Daniel Valenzuela ; Peck, Leah ; Young, Helen ; Mårtensson, Johan ; Zhang, Ling ; Glassford, Neil J ; Hsiao, Yu-Feng Frank ; Suzuki, Satoshi ; Bellomo, Rinaldo

Ireland: Elsevier Ireland Ltd

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