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Related Experiment Video

Updated: Jul 8, 2026

Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure

Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure

Published on: June 30, 2023

Differences in long-term mortality for different emergency department presenting complaints.

Urban Safwenberg¹, Andreas Terént, Lars Lind

¹Department of Medicine, Uppsala University Hospital, Uppsala, Sweden. urban.safwenberg@medsci.uu.se

Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine

|January 24, 2008

Summary

Emergency department (ED) presenting complaints significantly impact long-term mortality, with seizures showing the highest risk. The specific complaint provides crucial prognostic information beyond the final diagnosis for nonsurgical patients.

Related Experiment Videos

Last Updated: Jul 8, 2026

Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure

Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure

Published on: June 30, 2023

Area of Science:

Emergency Medicine
Public Health
Epidemiology

Background:

Previous emergency department (ED) visits can be indicative of future health outcomes.
Understanding long-term mortality associated with ED presenting complaints is crucial for risk stratification and patient management.

Purpose of the Study:

To investigate the association between emergency department (ED) presenting complaints and long-term mortality in nonsurgical patients.
To determine if presenting complaints offer unique prognostic information beyond discharge diagnoses.

Main Methods:

A 10-year follow-up study of 12,667 nonsurgical patients visiting an ED between 1995 and 1996.
Calculation of standardized mortality ratios (SMR) based on presenting complaints.
Analysis of mortality differences stratified by presenting complaint and discharge diagnosis, adjusting for age and gender.

Main Results:

Overall standardized mortality ratio (SMR) was 1.33 compared to the general population.
Presenting complaints were independently associated with varying long-term mortality rates (p < 0.0001).
Seizures (SMR 2.62), intoxications (SMR 2.51), asthmalike symptoms (SMR 1.84), and hyperglycemia (SMR 1.67) showed the highest mortality.
Chest pain presented with a 20% higher mortality rate.
Patients with myocardial infarction diagnosis but no chest pain had higher mortality (HR 1.70) than those with chest pain.
Stroke patients without strokelike symptoms had lower mortality (HR 0.74) than those with strokelike symptoms.

Conclusions:

Long-term mortality varies significantly based on emergency department (ED) presenting complaints, even within the same discharge diagnosis.
Seizures represent the highest risk presenting complaint for long-term mortality.
Presenting complaints provide valuable, independent prognostic information for nonsurgical ED patients.