Oxygen: under or over a surgical facemask for COVID‐19 patients?

Binks, Andrea; Parkinson, Sarah; Sabbouh, V.

doi:10.1111/anae.15166

Cited by 19 publications

(25 citation statements)

References 4 publications

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“…These findings could be explained by a decrease in room air entrainment diluting the gas mixture. 5 In contrast, Binks and colleagues 6 reported that F I O 2 , which was examined using a carbon dioxide sample line attached to a 16 G cannula, did not differ according to the position of the surgical mask relative to a Hudson oxygen mask at a flow rate of 6 L min −1 . However, the figure in their report showed significantly higher expiratory oxygen concentration when wearing an oxygen J o u r n a l P r e -p r o o f…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 94%

Effects of combined oxygen and surgical masks on inspired fraction of oxygen: relevance to COVID-19-induced respiratory failure

Hamada

Tanabe

Hirai

2021

British Journal of Anaesthesia

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 94%

Effects of combined oxygen and surgical masks on inspired fraction of oxygen: relevance to COVID-19-induced respiratory failure

Hamada

Tanabe

Hirai

2021

British Journal of Anaesthesia

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“… Gas flow to the surrounding area should be minimized as much as possible. Patients should be immediately put on a facemask with oxygen (e.g., Venturi, Hudson, or non-rebreathing masks with the lowest possible gas flow) and wear a standard surgical mask over it ( 41 ). AGP like non-invasive ventilation (NIV) or high flow nasal oxygen (HFNO) should be avoided, if possible.…”

Section: Protection Of the Patientmentioning

confidence: 99%

“…Transferring Freshly Extubated Patients Transferring extubated patients should follow the local regulations. Gas flow to the surrounding area should be minimized as much as possible by using a surgical or N95 mask over the patient's mouth ( 41 ) and nose or using a Coronavirus Safety during Intubation and Extubation (COSIE) COVID-19 Aerosol Box ( 43 ). Patients should be transferred with a facemask with oxygen if needed (e.g., Venturi, Hudson, or nonrebreather masks with the lowest possible gas flow).…”

Section: Protection Of the Patientmentioning

confidence: 99%

See 1 more Smart Citation

EACTA/SCA Recommendations for the Cardiac Anesthesia Management of Patients With Suspected or Confirmed COVID-19 Infection: An Expert Consensus From the European Association of Cardiothoracic Anesthesiology and Society of Cardiovascular Anesthesiologists With Endorsement From the Chinese Society of Cardiothoracic and Vascular Anesthesiology

Guarracino

Shernan

Tahan

et al. 2021

Journal of Cardiothoracic and Vascular Anesthesia

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The European Association of Cardiothoracic Anaesthesiology (EACTA) and the Society of Cardiovascular Anesthesia (SCA) aimed to create joint recommendations for the perioperative management of patients with suspected or proven SARS-CoV-2 infection undergoing cardiac surgery or invasive cardiac procedures. To produce appropriate recommendations, we combined the evidence from the literature review, re-evaluating the clinical experience of routine cardiac surgery in similar cases during the Middle East Respiratory Syndrome (MERS-CoV) outbreak and the current pandemic with suspected COVID-19 patients, and the expert opinions through broad discussions within EACTA and SCA. We took into consideration the balance between established procedures and the feasibility during the present outbreak. We represent an agreement between the European and United States practices in managing patients during the COVID-19 pandemic. The recommendations take into consideration a broad spectrum of issues with a focus on preoperative testing, safety concerns, overall approaches to general and specific aspects of preparation for anesthesia, airway management, transesophageal echocardiography, perioperative ventilation, coagulation, and hemodynamic control and postoperative care. As the COVID-19 pandemic is spreading, it will continue to represent a challenge for the worldwide anesthesiology community. To allow these recommendations to be updated as long as possible, we provided weblinks to international public and academic sources providing timely updated data. Our document should be the basis of future Task Forces to develop a more comprehensive consensus considering new evidence uncovered during the COVID-19 pandemic.

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“…Binks et al [3] proposed placing the surgical mask directly on the patient's nose and mouth and on top of the Hudson-type mask. So, we measured and compared (Wilcoxon Rank-Sum Test) ( Supplementary Figure 1 and Table 1) FiO 2 and ETCO 2 at three different times, using a carbon dioxide sample line in two situations: First, breathing oxygen at 3 L min −1 through a Hudson-type mask with a non-rebreathing reservoir placed on, and second, under an N95 respirator; without finding differences.…”

mentioning

confidence: 99%