What is the current status of evidence for carnitine in preventing PN-associated cholestasis in adults?

What is the current status of evidence for carnitine in preventing PN-associated cholestasis in adults?

• A. Proven to prevent PNAC
• B. Not studied
• C. Not established
• D. Proven to worsen PNAC

Answer: (C)

The key idea is that there isn’t enough solid evidence to claim carnitine reliably prevents PN-associated cholestasis in adults. Although carnitine plays a role in fatty acid transport and PN can contribute to cholestasis, the adult data are limited and inconsistent, with no well-powered randomized trials or consistent observational findings showing a protective effect. Therefore, there isn’t a proven preventive benefit, and guidelines don’t support routine prophylactic carnitine for PNAC prevention. More rigorous research is needed to determine if there is any true preventive benefit.

The key idea is that there isn’t enough solid evidence to claim carnitine reliably prevents PN-associated cholestasis in adults. Although carnitine plays a role in fatty acid transport and PN can contribute to cholestasis, the adult data are limited and inconsistent, with no well-powered randomized trials or consistent observational findings showing a protective effect. Therefore, there isn’t a proven preventive benefit, and guidelines don’t support routine prophylactic carnitine for PNAC prevention. More rigorous research is needed to determine if there is any true preventive benefit.