The Considerations and Controversies in Using High-Flow Nasal Oxygen with Self-Prone Positioning in SARS-CoV-2 COVID-19 Disease

<div>The patient trend in FiO<sub>2</sub>, SpO<sub>2</sub>, PaO<sub>2</sub>, and P:F ratio throughout her time in critical care (P:F <span class="nowrap"><svg height="12.7112pt" id="M4" style="vertical-align:-3.403299pt" version="1.1" viewbox="-0.0498162 -9.3079 107.074 12.7112" width="107.074pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M456 178V225H360V632H320C217 496 115 347 20 206V178H280V106C280 40 276 34 189 27V0H445V27C364 34 360 39 360 106V178H456ZM280 225H82C149 335 214 431 278 520H280V225Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.24,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.013,0,0,-0.013,14.656,0)"><path d="M513 0V26C475 28 448 43 413 81C379 116 277 234 258 264C301 314 319 334 344 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-11Z"></path></g></svg>).</span> Self-prone positioning was encouraged when the P:F ratio was under 150 mmHg (20 kPa). We did not stipulate a maximum prone time; this was determined by patient comfort, tolerance, and between-care episodes requiring the patient to be supine.</div>

Case Reports in Critical Care

fig3

Figure 3

Figure 3: The Considerations and Controversies in Using High-Flow Nasal Oxygen with Self-Prone Positioning in SARS-CoV-2 COVID-19 Disease 