Why This Tool Exists

No existing preoperative instrument addresses emotional readiness for the post-craniotomy recovery experience. Existing tools — the APAIS, STAI, HADS — measure anxiety about the procedure itself. None of them ask whether the patient has realistic expectations about emotional recovery, whether their identity is fused with cognitive performance, or whether they have the support system they will need.

The Pre-CERS asks these things. It takes 3-5 minutes. It creates a conversation between surgeon and patient about what is coming — before it arrives.

Key facts: 15 rated items across 5 domains, 2 unscored open-ended questions. 5-point Likert scale (0-4). Flag-based interpretation — no single total score or pass/fail result. Completion time: 3-5 minutes. Free, open, no license fees.

What It Screens For

Five domains capturing pre-surgical emotional readiness:

A. Current Emotional State

How you're feeling right now, before surgery

3 items
B. Expectations

What you expect recovery to be like

3 items
C. Support Systems

Who will be there for you during recovery

3 items
D. Coping & Identity

How you handle challenges and what defines you

3 items
E. Information & Readiness

How prepared and informed you feel

3 items

This Is NOT a Pass/Fail Tool

The Pre-CERS does not produce a single score that means “ready” or “not ready.” No patient should be denied surgery based on this screening. It is a clinical conversation starter and a risk stratification aid. Specific item patterns trigger clinical flags with recommended actions — that is all.

How It Pairs with the PCRES

The Pre-CERS and PCRES form a longitudinal arc — baseline before surgery, measurement after.

Pre-CERSPCRES
WhenBefore surgeryAfter surgery (2 wk – 12 mo)
Items15 items, 3-5 min35 items, 5-8 min
PurposeBaseline + risk screeningOutcome measurement
TriggersProactive interventionResponsive intervention

The Longitudinal Arc

Pre-CERS
Before surgery
PCRES
2 weeks
PCRES
6 weeks
PCRES
3 months
PCRES
6 months
PCRES
12 months

Serial comparison between Pre-CERS and PCRES reveals the trajectory of emotional recovery.

Clinical Flags

The Pre-CERS uses flag-based interpretation. Specific item patterns trigger clinical flags with recommended actions. These are proposed screening aids, not diagnostic thresholds.

FlagConditionSeverityRecommended Action
Elevated Emotional DistressAny Domain A item ≥ 3, or total ≥ 8AlertReferral to neuropsychology or social work. PHQ-9/GAD-7 screen.
Unrealistic ExpectationsItems 4 or 5 ≥ 3 AND item 6 ≤ 1WarningTargeted preoperative education. Provide Still You resources.
Low Support SystemAny Domain C item ≤ 1, or total ≤ 4AlertSocial work connection. More frequent post-surgical check-ins.
Identity–Performance FusionItem 11 ≥ 3WarningPreoperative conversation about cognitive changes vs. identity.
Self-Reliance PatternItem 12 ≥ 3 AND item 9 ≤ 1InfoName the pattern explicitly. Set expectation that help is necessary.
Not Emotionally ReadyItem 15 ≤ 1PriorityExplore what is driving unreadiness. Follow-up conversation, not necessarily delay.

Implementation in Your Practice

When: Pre-surgical appointment, 1-2 weeks before surgery.

How: Paper in waiting room, or sent digitally via patient portal, text message, or QR code.

Who reviews: Neurosurgeon, PA/NP, nurse coordinator, or social worker.

What to do with results:

  • No flags — File as baseline, provide Still You resources
  • 1-2 flags — Brief targeted conversation (5-10 min)
  • 3+ flags or emotional distress flag — Consider referral, schedule post-surgical emotional check-in at 2-4 weeks

Validation Status

The Pre-CERS is a pre-validation instrument. Conceptual foundation is complete. Content validity review and predictive validation studies are planned. The key research question: does the Pre-CERS predict PCRES outcomes at 6 weeks?

See the full validation roadmap for both instruments.

Pre-CERS v0.1 — March 2026 · Pre-validation. Expert review in progress.