الفهرس 
Title : Lung ultrasound vs ROX index as a predictor for progression to mechanical ventilation in COVID-19 patients.
ContantsOnly 14 pages are availabe for public view
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Abstract
During the outbreak of the profoundly infectious Coronavirus
disease 19, quick and straightforward prognostic instruments were contemplated
e.g. the ROX index and the lung ultrasound score (LUSS) to help clinical
choices and anticipate the need of invasive mechanical ventilation, in addition
to clinical assessment.
OBJECTIVE: The study aimed to compare lung ultrasound score with ROX
index in predicting the need of invasive ventilation in COVID-19 patients
requiring advanced oxygen therapy.
METHODS: Fifty patients with moderate to severe COVID-19 pneumonia were
admitted to the intensive care unit in the isolated area at Kasr Al-Ainy hospital.
Medical history and laboratory data were recorded on admission. All patients
went through bedside lung ultrasonography scan and LUSS was determined at
the second and the twelfth hour, additionally ROX index was determined at the
second, sixth and twelfth hour from starting the advanced oxygen therapy.
RESULTS: from a total of 50 patients with COVID-19, 56.0% were males, the
mean age was 65.98 + 11.68, and mortality rate was 66%. The ideal cut off
values of the ROX index at (2, 6, 12 hour) were (2.495, 2.675, 3.06)
respectively, (p <0.001) with sensitivity 90.9% and specificity 76.5% at the 12
hour. Likewise the ideal cut off point of LUSS was 25.50 (p <0.001) with
sensitivity 93.9% and specificity 88.2% for prediction of the mechanical
ventilation. There was no statistically significant difference between the type of
advanced oxygen support either high flow nasal cannula or non-invasive
positive pressure ventilation and the need of invasive ventilation (p =0.558).
CONCLUSION: Our study concluded that LUSS was more sensitive in
predicting the need of invasive .mechanical ventilation than ROX index.