skip to main content

CSF Drainage Target — FRCA Final MCQ

Instant feedback + full explanation. One question, done properly.

HardCardiothoracic AnaesthesiaCSF Drainage TargetFRCA Final

CSF drainage during thoracic aortic surgery: target CSF pressure?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: B — < 10 mmHg

Target CSF pressure <10 mmHg to maximise SCPP (= MAP - CSF pressure). Drain ≤10-15 mL/h to avoid subdural haematoma. Clamp when sitting, open when supine. CSFD trial supports reduced paraplegia rates.

Reference: STS/ESTS – 2023 – CSF drainage in thoracic aortic surgery