Back to Search Start Over

Patients in intensive care unit for COVID-19 pneumonia: the lung ultrasoundĀ patterns at admission and discharge. An observational pilot study.

Authors :
Persona P
Valeri I
Zarantonello F
Forin E
Sella N
Andreatta G
Correale C
Serra E
Boscolo A
Volpicelli G
Navalesi P
Source :
The ultrasound journal [Ultrasound J] 2021 Feb 24; Vol. 13 (1), pp. 10. Date of Electronic Publication: 2021 Feb 24.
Publication Year :
2021

Abstract

Background: During COVID-19 pandemic, optimization of the diagnostic resources is essential. Lung Ultrasound (LUS) is a rapid, easy-to-perform, low cost tool which allows bedside investigation of patients with COVID-19 pneumonia. We aimed to investigate the typical ultrasound patterns of COVID-19 pneumonia and their evolution at different stages of the disease.<br />Methods: We performed LUS in twenty-eight consecutive COVID-19 patients at both admission to and discharge from one of the Padua University Hospital Intensive Care Units (ICU). LUS was performed using a low frequency probe on six different areas per each hemithorax. A specific pattern for each area was assigned, depending on the prevalence of A-lines (A), non-coalescent B-lines (B1), coalescent B-lines (B2), consolidations (C). A LUS score (LUSS) was calculated after assigning to each area a defined pattern.<br />Results: Out of 28 patients, 18 survived, were stabilized and then referred to other units. The prevalence of C pattern was 58.9% on admission and 61.3% at discharge. Type B2 (19.3%) and B1 (6.5%) patterns were found in 25.8% of the videos recorded on admission and 27.1% (17.3% B2; 9.8% B1) on discharge. The A pattern was prevalent in the anterosuperior regions and was present in 15.2% of videos on admission and 11.6% at discharge. The median LUSS on admission was 27.5 [21-32.25], while on discharge was 31 [17.5-32.75] and 30.5 [27-32.75] in respectively survived and non-survived patients. On admission the median LUSS was equally distributed on the right hemithorax (13; 10.75-16) and the left hemithorax (15; 10.75-17).<br />Conclusions: LUS collected in COVID-19 patients with acute respiratory failure at ICU admission and discharge appears to be characterized by predominantly lateral and posterior non-translobar C pattern and B2 pattern. The calculated LUSS remained elevated at discharge without significant difference from admission in both groups of survived and non-survived patients.

Details

Language :
English
ISSN :
2524-8987
Volume :
13
Issue :
1
Database :
MEDLINE
Journal :
The ultrasound journal
Publication Type :
Academic Journal
Accession number :
33624222
Full Text :
https://doi.org/10.1186/s13089-021-00213-x