Early Improvement of Acute Respiratory Distress Syndrome in Patients With COVID-19 in the Intensive Care Unit: Retrospective Analysis

Zhu Zhan   ^{1, 2 *} , PhD ;   Xin Yang   ^{3 *} , MBBS ;   Hu Du   ¹ , MM ;   Chuanlai Zhang   ¹ , MM ;   Yuyan Song   ⁴ , MM ;   Xiaoyun Ran   ¹ , MM ;   An Zhang   ¹ , PhD ;   Mei Yang   ⁵ , MM

¹ Department of Intensive Care Unit, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China

² Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China

³ Department of Respiratory and Geriatrics, Chongqing Public Health Medical Center, Chongqing, China

⁴ Department of Intensive Care Unit, Chongqing Public Health Medical Center, Chongqing, China

⁵ Department of Intensive Care Unit, Chongqing Sixth People's Hospital, Chongqing, China

*these authors contributed equally