Personally, I think class is too blunt an instrument — it breaks encapsulation, allowing component consumers to change styles that they probably shouldn't, while also denying them a predictable interface for targeting individual styles, or setting theme properties globally

We also believe that this explicit API should be relatively granular and work at the selector or value level, not at the element level. This is why we think classes are "a blunt instrument", as Rich put it. Exposing even a single class gives you a clear entry point to the entire component's markup allowing complete control over every aspect. We need a more granular way for a component to define an explicit style interface.

Pneumomediastinum following blunt trauma that is identified on CT imaging is a poor predictor of aerodigestive injury; selective workup is appropriate

After blunt trauma, a hemothorax is usually due to multiple rib fractures with severed intercostal vessels, but occasionally bleeding is from lacerated lung parenchyma, which is usually associated with an air leak

Thrombosis of the internal jugular veins caused by blunt trauma can occur unilaterally or bilaterally and is often discovered incidentally because most patients are asymptomatic. Bilateral thrombosis can aggravate cerebral edema in patients with serious head injuries; stent placement should be considered in such patients if ICP remains elevated.

Because treatment must be instituted during the latent period between injury and onset of neurologic sequelae, diagnostic imaging is performed based on identified risk factors (Fig. 7-55).91 After identification of an injury, antithrombotics are administered if the patient does not have contraindications (intracranial hemorrhage, falling hemoglobin level with solid organ injury or complex pelvic fractures). Heparin, started without a loading dose at 15 units/kg per hour, is titrated to achieve a PTT between 40 and 50 seconds or antiplatelet agents are initiated (aspirin 325 mg/d or clopidogrel 75 mg/d). The types of antithrombotic treatment appear equivalent in published studies to date, and the duration of treatment is empirically recommended to be 6 months.

Early recognition and management of these injuries is paramount because patients treated with antithrombotics have a stroke rate of <1% compared with stroke rates of 20% in untreated patients.