Table 1 The PICO model: Population, Intervention, Comparison and Outcome
From: Best practice guidelines for blunt cerebrovascular injury (BCVI)
Clinical question | P | I | C | O |
|---|---|---|---|---|
What part of the trauma population should be screened for BCVI? | In-hospital trauma population | Clinical critera | Various screening criteria | Indications for radiological investigation |
Which radiological method should be applied for screening? | Selected trauma population | Angiogram | CTA versus DSA | Vessel injury |
How should BCVI be treated? | Trauma patients with vessel injury on angiogram | Medical or interventional treatment | Medical versus interventional versus no treatment | Stroke |
How should patients with BCVI be handled over time? | Trauma patients with vessel injury on angiogram | Follow-up controls | Life long versus period of treatment | Stroke |