ABSTRACT
BACKGROUND: Acute respiratory distress syndrome (ARDS) can be classified into sub-phenotypes according to different inflammatory/clinical status. Prognostic enrichment was achieved by grouping patients into hypoinflammatory or hyperinflammatory sub-phenotypes, even though the time of analysis may change the classification according to treatment response or disease evolution. We aimed to evaluate when patients can be clustered in more than 1 group, and how they may change the clustering of patients using data of baseline or day 3, and the prognosis of patients according to their evolution by changing or not the cluster. METHODS: Multicenter, observational prospective, and retrospective study of patients admitted due to ARDS related to COVID-19 infection in Spain. Patients were grouped according to a clustering mixed-type data algorithm (k-prototypes) using continuous and categorical readily available variables at baseline and day 3. RESULTS: Of 6205 patients, 3743 (60%) were included in the study. According to silhouette analysis, patients were grouped in two clusters. At baseline, 1402 (37%) patients were included in cluster 1 and 2341(63%) in cluster 2. On day 3, 1557(42%) patients were included in cluster 1 and 2086 (57%) in cluster 2. The patients included in cluster 2 were older and more frequently hypertensive and had a higher prevalence of shock, organ dysfunction, inflammatory biomarkers, and worst respiratory indexes at both time points. The 90-day mortality was higher in cluster 2 at both clustering processes (43.8% [n = 1025] versus 27.3% [n = 383] at baseline, and 49% [n = 1023] versus 20.6% [n = 321] on day 3). Four hundred and fifty-eight (33%) patients clustered in the first group were clustered in the second group on day 3. In contrast, 638 (27%) patients clustered in the second group were clustered in the first group on day 3. CONCLUSIONS: During the first days, patients can be clustered into two groups and the process of clustering patients may change as they continue to evolve. This means that despite a vast majority of patients remaining in the same cluster, a minority reaching 33% of patients analyzed may be re-categorized into different clusters based on their progress. Such changes can significantly impact their prognosis.
Subject(s)
COVID-19 , Respiratory Distress Syndrome , Humans , Cluster Analysis , Intensive Care Units , Prospective Studies , Respiratory Distress Syndrome/therapy , Retrospective StudiesSubject(s)
Chromosomes, Human, Pair 12 , ETS Translocation Variant 6 Protein , Leukemia, Myeloid, Acute , Oncogene Proteins, Fusion , Proto-Oncogene Proteins c-ets , Repressor Proteins , Translocation, Genetic , Humans , Leukemia, Myeloid, Acute/genetics , Leukemia, Myeloid, Acute/pathology , Oncogene Proteins, Fusion/genetics , Repressor Proteins/genetics , Chromosomes, Human, Pair 12/genetics , Proto-Oncogene Proteins c-ets/genetics , Chromosomes, Human, Pair 7/genetics , Infant, Newborn , Infant , Transcription Factors/genetics , Male , Female , MDS1 and EVI1 Complex Locus ProteinABSTRACT
No disponible
Subject(s)
Humans , Contingency Plans , Intensive Care Units/organization & administration , Inpatient Care Units , Hospital Bed Capacity , Patient SelectionABSTRACT
No disponible
Subject(s)
Humans , Renal Replacement Therapy/methods , Renal Insufficiency, Chronic/therapy , Renal Dialysis/methods , Hemofiltration/methods , Urea/urineABSTRACT
No disponible