Respiratory care · 2026
Effect of Wearing a Surgical Mask or N95 Mask in Patients With Stable Chronic Hypercapnic Respiratory Failure.
СтатьяРандомизированное исследованиеНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Venville Hayden, Elkins Mark R, McGuiness Olivia A, Piper Amanda J, Menadue Collette
Аннотация
BACKGROUND: Surgical and N95 masks are commonly used in the prevention of respiratory virus transmission. The safety of wearing masks is well documented in healthy individuals but is unclear in people with chronic hypercapnia. In addition, masks are often poorly tolerated in this population. The present study assessed the effect of surgical and N95 masks in people with stable chronic hypercapnia using noninvasive ventilation (NIV).
METHODS: A randomized crossover trial was performed. SpO2 and transcutaneous CO2 (PtcCO2) were measured in participants wearing a surgical mask, an N95 mask, and no mask for a 20-min period at rest. Secondary outcomes included heart rate, breathing frequency, the A1 scale from the Multidimensional Dyspnea Profile (MDP), and the modified Borg dyspnea scale (mBORG).
RESULTS: 24 participants (50% female; mean [SD] age 61 [13] years) were randomized and completed data collection. Over the 20-min study period, when compared with no mask, the mean differences for SpO2 in surgical and N95 masks were 0.0% [95% CI: -1.0-0.9] and 0.3% [95% CI: -0.6-1.3]. For PtcCO2 surgical mask, the mean difference was 0.0 mm Hg [95% CI: -1.3-1.3], and for N95 mask, the mean difference was 1.0 mm Hg [95% CI: 0.3-2.3]. There was no effect on heart rate or breathing frequency. Masks increased the mBORG (surgical mask median difference 0.75 points [95% CI: 0.25-2.00]; N95 mask median difference 1.50 [95% CI: 0.75-2.25]) and MDP (surgical mask median difference 1.5 points [95% CI: 0.5-2.5]; N95 mask median difference 2.5 points [95% CI: 1.0-3.0]) compared with no mask. Three participants requested to remove one or both masks early.
CONCLUSIONS: Wearing a surgical mask and N95 mask did not significantly affect gas exchange in subjects with chronic hypercapnia using NIV. However, dyspnea and breathing discomfort did increase.
METHODS: A randomized crossover trial was performed. SpO2 and transcutaneous CO2 (PtcCO2) were measured in participants wearing a surgical mask, an N95 mask, and no mask for a 20-min period at rest. Secondary outcomes included heart rate, breathing frequency, the A1 scale from the Multidimensional Dyspnea Profile (MDP), and the modified Borg dyspnea scale (mBORG).
RESULTS: 24 participants (50% female; mean [SD] age 61 [13] years) were randomized and completed data collection. Over the 20-min study period, when compared with no mask, the mean differences for SpO2 in surgical and N95 masks were 0.0% [95% CI: -1.0-0.9] and 0.3% [95% CI: -0.6-1.3]. For PtcCO2 surgical mask, the mean difference was 0.0 mm Hg [95% CI: -1.3-1.3], and for N95 mask, the mean difference was 1.0 mm Hg [95% CI: 0.3-2.3]. There was no effect on heart rate or breathing frequency. Masks increased the mBORG (surgical mask median difference 0.75 points [95% CI: 0.25-2.00]; N95 mask median difference 1.50 [95% CI: 0.75-2.25]) and MDP (surgical mask median difference 1.5 points [95% CI: 0.5-2.5]; N95 mask median difference 2.5 points [95% CI: 1.0-3.0]) compared with no mask. Three participants requested to remove one or both masks early.
CONCLUSIONS: Wearing a surgical mask and N95 mask did not significantly affect gas exchange in subjects with chronic hypercapnia using NIV. However, dyspnea and breathing discomfort did increase.