Isolated cardiac troponin rise does not modify the prognosis in elderly patients with hip fracture

312 elderly patients (≥70 years, mean age 85 ± 7 years) admitted after hip fracture surgery with a postoperative cardiac troponin I determination. Excluded: multiple or metastatic fractures, redo surgery, already hospitalized at the time of diagnosis, and no troponin measurement.

Isolated troponin rise (ITR), defined as postoperative cardiac troponin I >0.05 ng/L without significant ECG changes.

Control group (no significant ECG change and no troponin rise) and Acute Coronary Syndrome (ACS) group (troponin rise with significant ECG changes).

Composite criteria defined as 6-month mortality and/or re-hospitalization.composite