Evidence shows that pulmonary problems in coronavirus disease 2019(COVID-19)may set off from vascular injury that progresses to physiological disturbances through a compromised gas exchange,following an infection with...Evidence shows that pulmonary problems in coronavirus disease 2019(COVID-19)may set off from vascular injury that progresses to physiological disturbances through a compromised gas exchange,following an infection with the severe acute respiratory syndrome coronavirus 2.In this process,inefficient gas exchange in the alveolar could precipitate silent nonclinical hypoxemia.Unfortunately,patients with“silent hypoxemia”do not necessarily experience any breathing difficulty(dyspnea)at the early stage of COVID-19 while the disease progresses.As a result,several asymptomatic,presymptomatic and patients with mild symptoms may escape quarantine measure and thus continue to spread the virus through contacts.Therefore,early diagnosis of“silent hypoxemia“,which attracts no clinical warnings,could be an important diagnostic measure to prevent acute respiratory distress syndrome from the risk of pulmonary failure among the presymptomatic and as a screening tool in the asymptomatic who are hitherto potential spreaders of the virus.展开更多
The 2019 novel coronavirus disease(COVID-19),formerly called novel Coronavirus(2019-nCoV),was discovered in December 2019.This outbreak was declared a public health emergency of international concern(PHEIC)on 30th Jan...The 2019 novel coronavirus disease(COVID-19),formerly called novel Coronavirus(2019-nCoV),was discovered in December 2019.This outbreak was declared a public health emergency of international concern(PHEIC)on 30th January 2020 by the World Health Organization(WHO).The WHO announced US$675 million fund to strengthen China and nations with weaker health systems in combating COVID-19.By 18th February 2020,there has been 73332 confirmed cases with one case in Egypt[1].展开更多
文摘Evidence shows that pulmonary problems in coronavirus disease 2019(COVID-19)may set off from vascular injury that progresses to physiological disturbances through a compromised gas exchange,following an infection with the severe acute respiratory syndrome coronavirus 2.In this process,inefficient gas exchange in the alveolar could precipitate silent nonclinical hypoxemia.Unfortunately,patients with“silent hypoxemia”do not necessarily experience any breathing difficulty(dyspnea)at the early stage of COVID-19 while the disease progresses.As a result,several asymptomatic,presymptomatic and patients with mild symptoms may escape quarantine measure and thus continue to spread the virus through contacts.Therefore,early diagnosis of“silent hypoxemia“,which attracts no clinical warnings,could be an important diagnostic measure to prevent acute respiratory distress syndrome from the risk of pulmonary failure among the presymptomatic and as a screening tool in the asymptomatic who are hitherto potential spreaders of the virus.
文摘The 2019 novel coronavirus disease(COVID-19),formerly called novel Coronavirus(2019-nCoV),was discovered in December 2019.This outbreak was declared a public health emergency of international concern(PHEIC)on 30th January 2020 by the World Health Organization(WHO).The WHO announced US$675 million fund to strengthen China and nations with weaker health systems in combating COVID-19.By 18th February 2020,there has been 73332 confirmed cases with one case in Egypt[1].
