Post-traumatic pulmonary embolism in the intensive care unit

Area of Science:

• Critical Care Medicine
• Pulmonary Medicine
• Trauma Surgery

Background:

• Post-traumatic pulmonary embolism (PE) is a serious complication in critically ill trauma patients.
• Early identification of predictive factors and prognostic indicators is crucial for improving patient outcomes.

Purpose of the Study:

• To identify factors predicting the development of PE in intensive care unit (ICU) trauma patients.
• To describe the clinical manifestations and outcomes of post-traumatic PE.
• To determine prognostic factors for patients with PE in the ICU.

Main Methods:

• Prospective study over four years involving trauma patients admitted to the ICU.
• Patients were classified into groups with and without confirmed PE.
• Diagnosis of PE confirmed by ventilation/perfusion (V/Q) scan or computed tomography (CT) scan.

Main Results:

• PE was confirmed in 3.2% of 1067 trauma patients, with a mean onset of 11.3 days post-admission.
• Clinical manifestations included hypotension (38.2%), systemic inflammatory response syndrome (SIRS) (67.7%), and respiratory distress (94%).
• ICU mortality was 38.2%; factors predicting poor prognosis included circulatory failure (shock) and thrombocytopenia. Predictive factors for PE were age > 40, SAPS II > 25, hypoxemia, spine fracture, and meningeal hemorrhage.

Conclusions:

• Symptomatic PE is not frequently observed due to lack of systematic screening, despite high DVT frequency in post-traumatic patients.
• Circulatory failure (shock) and thrombocytopenia are associated with poor prognosis in the ICU.
• Age > 40, SAPS II > 25, hypoxemia, spine fracture, and meningeal hemorrhage predict PE development, warranting preventative measures.