[Experience of a Rapid Diagnostic and Short Stay Unit implemented in Argentina].

Introduction: Rapid diagnostic units (RDUs) represent an alternative to conventional hospitalization diagnosis, enabling outpatient care for patients with suspected potentially severe disease. The first year of operation of a Rapid Diagnostic and Short Stay Unit (RDSSU) is described.

Materials And Methods: Retrospective study involving 696 patients, documenting 739 events defined as each patient's entry into the RDU for specific reasons.

[Hamman's syndrome in SARS-CoV-2 pneumonia].

Hamman's syndrome, or spontaneous pneumomediastinum, is the presence of air in the mediastinum without a history of previous pulmonary pathology, chest trauma or iatrogenesis. It has been described as a rare complication in patients with COVID-19 pneumonia. It is postulated that an increase in airway pressure associated with diffuse alveolar damage caused by the virus produces an air leak into the mediastinum.