{"doi":"10.1016/j.bja.2020.09.042","title":"Prone positioning for patients intubated for severe acute respiratory distress syndrome (ARDS) secondary to COVID-19: a retrospective observational cohort study","abstract":null,"journal":"British Journal of Anaesthesia","year":2021,"id":596648,"datarank":0.7465100613630863,"base_score":4.976733742420574,"endowment":4.976733742420574,"self_citation_contribution":0.7465100613630863,"citation_network_contribution":0.0,"self_endowment_contribution":0.7465100613630863,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":144,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1528132,"name":"Flor Cerda","orcid":null,"position":1,"is_corresponding":false},{"id":1528134,"name":"J. Brady Scott","orcid":null,"position":2,"is_corresponding":false},{"id":1277293,"name":"Ramandeep Kaur","orcid":"0000-0001-8138-6459","position":3,"is_corresponding":false},{"id":1528135,"name":"Sarah Sungurlu","orcid":null,"position":4,"is_corresponding":false},{"id":1528136,"name":"Sara H. Mirza","orcid":null,"position":5,"is_corresponding":false},{"id":1528137,"name":"Amnah A. Alolaiwat","orcid":null,"position":6,"is_corresponding":false},{"id":1485665,"name":"Ramandeep Kaur","orcid":"0000-0001-6990-1390","position":7,"is_corresponding":false},{"id":1528138,"name":"Ashley E. Augustynovich","orcid":null,"position":8,"is_corresponding":false},{"id":642886,"name":"Jie Li","orcid":"0000-0002-5271-8263","position":9,"is_corresponding":false},{"id":1528129,"name":"Tyler T. Weiss","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Prone positioning for patients intubated for severe acute respiratory distress syndrome (ARDS) secondary to COVID-19: a retrospective observational cohort study","abstract":"<h4>Background</h4>The role of repeated prone positioning in intubated subjects with acute respiratory distress syndrome caused by COVID-19 remains unclear.<h4>Methods</h4>We conducted a retrospective observational cohort study of critically ill intubated patients with COVID-19 who were placed in the prone position between March 18, 2020 and March 31, 2020. Exclusion criteria were pregnancy, reintubation, and previous prone positioning at a referring hospital. Patients were followed up until hospital discharge. The primary outcome was oxygenation assessed by partial pressure of oxygen/fraction of inspired oxygen ratio (Pao<sub>2</sub>/Fio<sub>2</sub>) ratio. A positive response to proning was defined as an increase in Pao<sub>2</sub>/Fio<sub>2</sub> ratio ≥20%. Treatment failure of prone positioning was defined as death or requirement for extracorporeal membrane oxygenation (ECMO).<h4>Results</h4>Forty-two subjects (29 males; age: 59 [52-69] yr) were eligible for analysis. Nine subjects were placed in the prone position only once, with 25 requiring prone positioning on three or more occasions. A total of 31/42 (74%) subjects survived to discharge, with five requiring ECMO; 11/42 (26%) subjects died. After the first prone positioning session, Pao<sub>2</sub>/Fio<sub>2</sub> (mean (standard deviation)) ratio increased from 17.9 kPa (7.2) to 28.2 kPa (12.2) (P<0.01). After the initial prone positioning session, subjects who were discharged from hospital were more likely to have an improvement in Pao<sub>2</sub>/Fio<sub>2</sub> ratio ≥20%, compared with those requiring ECMO or who died.<h4>Conclusion</h4>Patients with COVID-19 acute respiratory distress syndrome frequently responded to initial prone positioning with improved oxygenation. Subsequent prone positioning in subjects discharged from hospital was associated with greater improvements in oxygenation.","is_dataset_classified":null,"base_score":4.976733742420574,"endowment":4.976733742420574,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"33158500","pmcid":"PMC7547633","openalex_id":"https://openalex.org/W3092371503","authors":[],"funders":[],"total_grants":0,"fwci":12.5056,"citation_percentile":0.9903433,"influential_citations":0,"citation_trend":[{"year":2020,"count":1},{"year":2021,"count":35},{"year":2022,"count":53},{"year":2023,"count":25},{"year":2024,"count":22},{"year":2025,"count":6},{"year":2026,"count":2}],"oa_status":"bronze","license":"http://www.elsevier.com/open-access/userlicense/1.0/","oa_locations":[{"url":"http://www.bjanaesthesia.org/article/S0007091220308370/pdf","host_type":"journal"},{"url":"http://www.bjanaesthesia.org/article/S0007091220308370/pdf","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0007091220308370?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0007091220308370?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doi.org/10.1016/j.bja.2020.09.042","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/33158500","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7547633","host_type":"repository"},{"url":"https://europepmc.org/articles/PMC7547633","host_type":"Europe_PMC"},{"url":"https://europepmc.org/articles/PMC7547633?pdf=render","host_type":"Europe_PMC"}],"fields_of_study":["Respiratory Support and Mechanisms","Airway Management and Intubation Techniques","Pneumothorax, Barotrauma, Emphysema","Aged","COVID-19","Cohort Studies","Female","Follow-Up Studies","Humans","Intubation, Intratracheal","Male","Middle Aged","Prone Position","Respiratory Distress Syndrome","Respiratory Mechanics","Retrospective Studies"],"mesh_terms":["COVID-19","Aged","Female","Follow-Up Studies","Humans","Intubation, Intratracheal","Male","Middle Aged","Respiratory Distress Syndrome","Retrospective Studies","Cohort Studies","Respiratory Mechanics","Prone Position"],"keywords":["Prone position","Medicine","ARDS","Fraction of inspired oxygen","Extracorporeal membrane oxygenation","Retrospective cohort study","Cohort study","Cohort","Anesthesia","Surgery","Internal medicine","Mechanical ventilation","Lung","Acute respiratory distress syndrome (ARDS)","Oxygenation","Prone Positioning","Covid-19"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Good health and well-being"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[{"name":"doi"}],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-28T10:51:29.223756Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}