Alveolar-Arterial Gradient Is an Early Marker to Predict Severe Pneumonia in COVID-19 Patients

• Main Authors: Giuseppe Pipitone (Author), Marta Camici (Author), Guido Granata (Author), Adriana Sanfilippo (Author), Francesco Di Lorenzo (Author), Calogero Buscemi (Author), Antonio Ficalora (Author), Daria Spicola (Author), Claudia Imburgia (Author), Ilenia Alongi (Author), Francesco Onorato (Author), Caterina Sagnelli (Author), Chiara Iaria (Author)
• Format: Book
• Published: MDPI AG, 2022-06-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Background: One of the main challenges in the management of COVID-19 patients is to early assess and stratify them according to their risk of developing severe pneumonia. The alveolar-arterial oxygen gradient (D(A-a)O₂) is defined as the difference between the alveolar and art...