How to Use AnticoagPlanner (Step-by-Step)
- Pick a category tab (General, Spine & Pain, Neurosurgery, IR). The procedure list and bleeding-risk field sync automatically.
- Enter patient factors: Age, Sex, Height (cm), Weight (kg), SCr (µmol/L). Choose CrCl method (ABW/IBW/AdjBW). Optionally apply a minimum SCr of 53 µmol/L for frail patients; we surface a soft warning.
- Select the anticoagulant (DOAC, warfarin, LMWH/UFH). For warfarin/DOACs, set **thrombotic risk** (Low/Mod/High/Very high).
- Procedure date & time: when provided, the tool outputs **absolute timestamps** for stop/restart windows.
- Neuraxial context: auto-detected for Neurosurgery and for neuraxial keywords (epidural, spinal, intrathecal, lumbar puncture, myelogram, DBS, craniotomy, etc.). You can override this toggle.
- Catheter present? If yes, add planned removal time. The restart uses the **later of** baseline window vs the catheter gap (DOAC +24 h; LMWH +4 h; UFH +1 h) and suppresses dosing while the catheter is in place.
What the output means
- Warnings: red/amber banners for neuraxial hard-stops, renal cautions, and data gaps requiring specialist input.
- CrCl line: method, numbers used, µmol/L→mg/dL conversion (×0.0113), and the calculated CrCl.
- Stop/Restart: conservative windows with timestamps when a procedure date is set.
- Bridging governance: “Do NOT bridge DOACs.” Warfarin shows bridging guidance only when high thrombotic risk is selected.
- INR governance (warfarin): “Check INR pre-procedure; target <1.5; correct or delay if ≥1.5 within 24–48 h.”
- Source row: appendix/page pointers to guidelines for traceability.
Ready to generate a plan? Use the AnticoagPlanner calculator.
Sources
- MD Anderson. Peri-Procedure Anticoagulants, V8 (approved 07/15/2025).
- ASRA/Stanford institutional neuraxial catheter timing summaries.
Disclaimer: Educational content. Supports, not replaces, clinical judgment. Confirm local policy and anesthesia guidance for neuraxial catheters.