Impact of Vitamin C Supplementation on Reducing Delirium Incidence After Open-Heart Surgery
Pages 72-80
https://doi.org/10.22034/jampbr.2025.535544.1027
Eissa Bilehjani, Solmaz Fakhari
Abstract Introduction: Delirium can be a real challenge for patients in intensive care units (ICUs), popping up in about 30% of those who’ve had cardiac surgery. We wanted to see if a little vitamin C could help prevent this confusion after open-heart procedures.
Material and methods: We ran a randomized controlled trial with 160 adults set for elective heart surgery using cardiopulmonary bypass (CPB) at Shahid Madani Hospital in Tabriz back in 2019. We split them into two groups: 80 got vitamin C (10 cc or 2 grams intravenously right after CPB started, then 1 gram daily for two days), and 80 got a placebo (just distilled water). We kept an eye on delirium using the CAM-ICU tool and tracked things like patient details, surgery stats, and any complications.
Results: At first, we thought delirium hit 22.8% of patients (37 people), with the vitamin C group at 15.2% and the placebo group at 30.1%—a pretty clear difference (P=0.024). But after a closer look, we spotted a hiccup in how we assigned people, so we adjusted the numbers to 20% total (32 patients), with 12.5% in the vitamin C group and 27.5% in the placebo group (P=0.018). Patients with delirium also had longer surgeries, more time on CPB, more bleeding, and extended ICU stays (P<0.05).
Conclusion: It looks like vitamin C might be a helpful tool to keep delirium at bay after heart surgery—pretty exciting stuff!




