Adverse events
death
The median follow-up period for both groups was 452 days for the LIPUS group and 449 days for the placebo group. All-cause death was observed in 1 of 32 patients (3.1%) in the LIPUS group and in 4 of 29 patients (13.8%) in the placebo group (95% CI: 0.027 to 1.922, HR 0.23, P = 0.17) (