Procedural / Technique

vascular

High-impact pattern

TEVAR CSF Drainage — Spinal Cord Protection Adjunct

Lumbar CSF drain placement and management to augment spinal cord perfusion pressure during/after thoracic endovascular aortic repair

Lumbar CSF drainage during/after TEVAR augments spinal cord perfusion pressure (SCPP = MAP − CSF pressure) by lowering intrathecal pressure to ≤10 mmHg, preventing ischemic spinal cord injury from coverage of segmental medullary arteries including the artery of Adamkiewicz (typically T9-T12, left).

If you forget

Headline: CSF drain = spinal cord protection adjunct for extensive TEVAR

Board trap

TEVAR produces DELAYED paraplegia (24-72 h) more often than open repair — boards test whether you keep the drain in 48-72 h and rescue aggressively with MAP augmentation + CSF drainage if any deficit appears post-removal.

Key numbers

CSF pressure goal ≤10 mmHg during/after TEVAR
MAP goal ≥90-100 mmHg to maintain SCPP ≥70-80 mmHg
Maximum drain rate ~10-15 mL/h (cap 300 mL/24h)
Maintain drain 48-72 h postop in high-risk coverage
Drain contraindicated if INR >1.5 or platelets <100,000/µL

Reviewed Sep 16, 2026 for clinical accuracy by BoardsBridge Editorial Process

Uri Rozen, MD — Licensed Physician, Israel

Source guidelines: ACC AHA Aortic Disease 2022 · ACC AHA Aortic Disease 2022

Re-review cadence: 12 months from reviewed date.

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Card ID: tevar-csf-drain · Path: aba.vascular.thoracic-aorta.tevar-csf-drain