Gitte Bunkenborg1, Ingrid Poulsen2, Karin Samuelson3, Steen Ladelund4, Jonas Akeson5. 1. Department of Anaesthesiology, Copenhagen University Hospital , Copenhagen, Denmark. 2. Department of Neurorehabilitation, TBI Unit, Copenhagen University Hospital , Copenhagen, Denmark. 3. Department of Health Sciences, Faculty of Medicine, Lund University , Lund, Sweden. 4. Clinical Science Centre, Copenhagen University Hospital , Copenhagen, Denmark. 5. Department of Clinical Sciences, Faculty of Medicine, Lund University , Lund, Sweden.
Abstract
PURPOSE: The purpose of this paper is to determine associations between initially recorded deviations in individual bedside vital parameters that contribute to total Modified Early Warning Score (MEWS) levels 2 or 3 and further clinical deterioration (MEWS level=4). DESIGN/METHODOLOGY/APPROACH: This was a prospective study in which 27,504 vital parameter values, corresponding to a total MEWS level⩾2, belonging to 1,315 adult medical and surgical inpatient patients admitted to a 90-bed study setting at a university hospital, were subjected to binary logistic and COX regression analyses to determine associations between vital parameter values initially corresponding to total MEWS levels 2 or 3 and later deterioration to total MEWS level ⩾4, and to evaluate corresponding time intervals. FINDINGS: Respiratory rate, heart rate and patient age were significantly ( p=0.012, p<0.001 and p=0.028, respectively) associated with further deterioration from a total MEWS level 2, and the heart rate also ( p=0.009) from a total MEWS level 3. Within 24 h from the initially recorded total MEWS levels 2 or 3, 8 and 17 percent of patients, respectively, deteriorated to a total MEWS level=4. Patients initially scoring MEWS 2 had a 27 percent 30-day mortality rate if they later scored MEWS level=4, and 8.7 percent if they did not. PRACTICAL IMPLICATIONS: It is important to observe all patients closely, but especially elderly patients, if total MEWS levels 2 or 3 are tachypnoea and/or tachycardia related. ORIGINALITY/VALUE: Findings might contribute to patient safety by facilitating appropriate clinical and organizational decisions on adequate time spans for early warning scoring in general ward patients.
PURPOSE: The purpose of this paper is to determine associations between initially recorded deviations in individual bedside vital parameters that contribute to total Modified Early Warning Score (MEWS) levels 2 or 3 and further clinical deterioration (MEWS level=4). DESIGN/METHODOLOGY/APPROACH: This was a prospective study in which 27,504 vital parameter values, corresponding to a total MEWS level⩾2, belonging to 1,315 adult medical and surgical inpatient patients admitted to a 90-bed study setting at a university hospital, were subjected to binary logistic and COX regression analyses to determine associations between vital parameter values initially corresponding to total MEWS levels 2 or 3 and later deterioration to total MEWS level ⩾4, and to evaluate corresponding time intervals. FINDINGS: Respiratory rate, heart rate and patient age were significantly ( p=0.012, p<0.001 and p=0.028, respectively) associated with further deterioration from a total MEWS level 2, and the heart rate also ( p=0.009) from a total MEWS level 3. Within 24 h from the initially recorded total MEWS levels 2 or 3, 8 and 17 percent of patients, respectively, deteriorated to a total MEWS level=4. Patients initially scoring MEWS 2 had a 27 percent 30-day mortality rate if they later scored MEWS level=4, and 8.7 percent if they did not. PRACTICAL IMPLICATIONS: It is important to observe all patients closely, but especially elderly patients, if total MEWS levels 2 or 3 are tachypnoea and/or tachycardia related. ORIGINALITY/VALUE: Findings might contribute to patient safety by facilitating appropriate clinical and organizational decisions on adequate time spans for early warning scoring in general ward patients.
Entities:
Keywords:
Association; Clinical deterioration; Early warning score; General ward patients; Vital parameters