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The objectives of this study were to evaluate associations between LUS signs at the time of screening and clinical outcomes 1\u00a0month after LUS and to assess LUS signs at the time of presentation with known risk factors for COVID-19 pneumonia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This was a retrospective study of data prospectively collected 1\u00a0month after LUS screening of 447 adult patients diagnosed with COVID-19 pneumonia. Sonographic examination was performed in screening tents with the participants seated. The LUS signs (B-lines\u2009&gt;\u20092, coalescent B-lines, and subpleural consolidations) were captured in six areas of each hemithorax and a LUS aeration score was calculated; in addition, the categories of disease probability based on patterns of LUS findings (high-probability, intermediate-probability, alternate, and low-probability patterns) were evaluated. The LUS signs at patients\u2019 initial evaluation were related to the following outcomes: symptomatology, the need for hospitalization or invasive mechanical ventilation (IMV), and COVID-19-related death.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      According to the evaluations performed 1\u00a0month after LUS screening, 36 patients were hospitalised, eight of whom required intensive care unit (ICU) admission and three of whom died. The presence of coalescent B-lines was associated with the need for hospitalization (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.008). The presence of subpleural consolidations was associated with dyspnoea (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001), cough (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.003), the need for hospitalization (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001), the need for ICU admission (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001), and death (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.002). A higher aeration score was associated with dyspnoea (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001), the need for hospitalization (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001), the need for ICU admission (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001), and death (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.003). In addition, patients with a high-probability LUS pattern had a higher aeration score (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001) and more dyspnoea (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.024) and more often required hospitalization (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.0001) and ICU admission (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.031).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In patients with COVID-19 pneumonia, LUS signs were related to respiratory symptoms 1\u00a0month after LUS screening. Strong relationships were identified between LUS signs and the need for hospitalization and death.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s13089-021-00223-9","type":"journal-article","created":{"date-parts":[[2021,4,9]],"date-time":"2021-04-09T07:03:31Z","timestamp":1617951811000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["One-month outcomes of patients with SARS-CoV-2 infection and their relationships with lung ultrasound signs"],"prefix":"10.5826","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6193-4822","authenticated-orcid":false,"given":"Thiago Thomaz","family":"Mafort","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5071-6045","authenticated-orcid":false,"given":"Rog\u00e9rio","family":"Rufino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6785-0753","authenticated-orcid":false,"given":"Claudia Henrique","family":"da Costa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5537-7057","authenticated-orcid":false,"given":"Mariana Soares","family":"da Cal","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3798-400X","authenticated-orcid":false,"given":"Laura Braga","family":"Monnerat","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7405-4480","authenticated-orcid":false,"given":"Patr\u00edcia Frascari","family":"Litrento","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6375-4286","authenticated-orcid":false,"given":"Laura Lizeth Zuluaga","family":"Parra","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0877-8613","authenticated-orcid":false,"given":"Arthur de S\u00e1 Earp de Souza","family":"Marinho","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8598-4878","authenticated-orcid":false,"given":"Agnaldo Jos\u00e9","family":"Lopes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"27750","published-online":{"date-parts":[[2021,4,9]]},"reference":[{"key":"223_CR1","doi-asserted-by":"publisher","first-page":"507","DOI":"10.1016\/S0140-6736(20)30211-7","volume":"395","author":"N Chen","year":"2020","unstructured":"Chen N, Zhou M, Dong X et al (2020) Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. 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The study protocol was approved by the National Research Ethics Committee of Brazil (Number: CAAE-30135320.0.0000.5259). All participants read the protocol and agreed to participate in the study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"No identifiable data from individual patients are included in this paper.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no conflicts of interest.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"19"}}