الفهرس 
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Abstract
This study at Alexandria Main University Hospital aimed to identify predictors of in-hospital mortality in patients with blunt polytrauma. It was a prospective observational study including 150 adult patients with multiple blunt traumas admitted between January and June 2023. The study excluded patients under 18, those transferred from other hospitals, pregnant females, and patients with advanced medical diseases or malignancies.
The primary aim focused on evaluating vital signs, trauma types, laboratory tests, medical procedures, and treatments as mortality predictors. The secondary aim was to assess the outcome of these predictors.
The study followed a comprehensive data collection method, including clinical assessments, demographic data, trauma mechanisms, physical examinations, laboratory findings, medical procedures, and follow-up outcomes. It measured vital signs, Glasgow Coma Scale, pupil patterns, types of trauma, and laboratory findings on admission. Medical procedures, treatments, complications, radiological findings, and outcomes like duration of mechanical ventilation, length of stay in ICU, and hospital stay were also recorded.
The key findings included in this study were:
• Demographics: Neither age nor sex showed significant association with survival outcomes.
• Referral source, arrival mode and time: These factors were not significantly linked to patient outcomes.
• Comorbidities: Common comorbidities like hypertension, diabetes, cardiac diseases, renal diseases showed no significant association with survival or death.
• Trauma mechanism such as motor vehicle accidents, falls, and assaults, did not significantly influence patient outcomes.
• Vital signs: Lower systolic blood pressure, lower diastolic blood pressure, lower mean arterial blood pressure, higher heart rate, higher respiratory rate, and lower oxygen saturation on presentation in admission were significantly associated with higher mortality.
• Glasgow Coma Scale: Lower scores on presentation in admission were significantly associated with higher mortality.
• Pupil patterns and sizes: Significant association was found between pupil reactivity and size, with patient outcomes.
• Types of trauma by physical examination: Specific types like traumatic brain injury, thoracic injury, abdominal injury, and genito-urinary injury had significant associations with higher mo