Researchers examined 249 patients who suffered ST-segment elevation myocardial infarction and were classified as Killip class 1. These patients received CT scans before their primary coronary intervention. The team measured extravascular lung water, a sign of subclinical pulmonary congestion, and compared it to the standard GRACE risk score.
The results showed that patients with higher levels of lung water had a greater risk of major adverse cardiovascular events while in the hospital. The GRACE score was also higher in these patients, but adding the CT lung water measurement improved the ability to predict who would have complications. Statistical tests confirmed that this addition significantly improved prediction accuracy.
The study concludes that seeing hidden lung fluid on a CT scan is associated with an increased risk of in-hospital heart events. Readers should understand that this is a retrospective cohort study, meaning it looks back at data rather than assigning treatments. This finding helps doctors assess risk but does not change current standard care practices yet.