> ## Content Index
> Fetch the complete content index at: https://www.preanaesthesia.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# ACE inhibitors / ARBs / RAAS inhibitors
- URL: https://www.preanaesthesia.com/clinician-reference/ace-inhibitors-arbs-raas-inhibitors/
- Published: 2026-09-12T18:41:08.000Z
- Updated: 2026-09-13T19:07:41.000Z
- Description: Perioperative decisions depend on the indication, blood-pressure control, heart failure and surgical risk.
- Author: preetam satish
- Tags: #clinician, #Import 2026-09-12 18:04

Management of renin–angiotensin–aldosterone system (RAAS) inhibitors depends on the indication and surgical risk. For selected patients taking RAAS inhibitors for hypertension with controlled blood pressure who are undergoing elevated-risk non-cardiac surgery, omission about 24 h before surgery may reduce intraoperative hypotension. In patients taking RAAS inhibitors for HFrEF, perioperative continuation is reasonable.

## Sources

- [2024 AHA/ACC perioperative cardiovascular guideline](https://professional.heart.org/en/science-news/2024-guideline-for-perioperative-cardiovascular-management-for-noncardiac-surgery)

## Related reading

- [Beta blockers](https://www.preanaesthesia.com/clinician-reference/beta-blockers/)
- [Statins](https://www.preanaesthesia.com/clinician-reference/statins/)
- [Metformin](https://www.preanaesthesia.com/clinician-reference/metformin/)
- [SGLT2 inhibitors](https://www.preanaesthesia.com/clinician-reference/sglt2-inhibitors/)
- [Other oral glucose-lowering medicines](https://www.preanaesthesia.com/clinician-reference/other-oral-glucose-lowering-medicines/)