Pre-op Cardiac Evaluation
Answer the surgical team’s real question — peri-operative cardiac risk and optimization, not blanket "clearance."
Learning Objectives
- 1.Frame pre-op evaluation as risk assessment and optimization, not "clearance."
- 2.Apply a stepwise approach (urgency, active conditions, functional capacity, surgical risk).
- 3.Use risk tools and avoid low-yield testing.
Overview
There is no such thing as blanket "clearance." The real question is: what is this patient’s peri-operative cardiac risk, and what (if anything) reduces it without delaying needed surgery?
Why this matters
Reflexive pre-op testing rarely changes management and can delay surgery; missing an active cardiac condition can be catastrophic. A structured approach does both jobs.
A stepwise approach
- 1.Surgical urgency: emergent surgery proceeds — optimize peri-operatively, don’t delay for testing.
- 2.Active cardiac conditions? (unstable angina/recent ACS, decompensated HF, significant arrhythmia, severe symptomatic valve disease) → evaluate/stabilize first, escalate.
- 3.Estimate surgical risk (low vs elevated) and the patient’s clinical risk.
- 4.Assess functional capacity (METs) — can they climb stairs / do moderate activity?
- 5.Testing only if it will change management (e.g., poor/unknown capacity with elevated risk).
Risk tools
- •Use a validated index (e.g., RCRI) to estimate major cardiac risk.
- •Combine with functional capacity and surgical risk — no single number decides.
When testing helps (and when it doesn’t)
- •Stress testing generally only if results would change management (e.g., would prompt revascularization or alter the plan).
- •Routine resting echo/stress for everyone is low-yield and delays care.
- •Don’t test a patient who needs urgent/emergent surgery.
Peri-operative medications
- •Continue most cardiac meds (e.g., beta-blockers already on) — don’t stop abruptly.
- •Anticoagulation/antiplatelet hold-and-bridge decisions are case-specific and provider-led; recent stents complicate timing.
- •Communicate a clear med plan to the surgical team.
Red flags → delay/escalate
- •Active/unstable cardiac conditions (recent ACS, decompensated HF, severe symptomatic AS, unstable arrhythmia).
- •New concerning symptoms before elective surgery.
Escalate
An active cardiac condition before elective surgery means evaluate/stabilize and involve the physician — not "cleared." For emergent surgery, optimize and communicate risk rather than delay.
Common beginner mistakes
- •Writing "cleared for surgery" instead of a risk assessment and recommendations.
- •Ordering reflexive stress tests/echos that won’t change management.
- •Stopping beta-blockers or mismanaging antiplatelets around recent stents.
- •Delaying urgent/emergent surgery for low-yield testing.
Documentation pearls
- •Document the risk estimate, functional capacity, active conditions screened, the med plan, and specific peri-operative recommendations — not the word "clearance."
Tools
- •RCRI (Revised Cardiac Risk Index) is available under Clinical Tools.
Mini cases
Surgical team requests "cardiac clearance" for elective hip replacement; the patient had a drug-eluting stent 6 weeks ago and is on dual antiplatelet therapy.
What’s the issue?
Show answer
Very recent stenting with DAPT — interrupting antiplatelets early risks stent thrombosis, and elective surgery is often deferred until the recommended DAPT duration. Escalate/coordinate with cardiology rather than issuing "clearance."
Active, asymptomatic 60-year-old who climbs several flights without trouble, for an elevated-risk surgery, normal exam/EKG.
Do they need a stress test?
Show answer
Good functional capacity (≥ moderate METs) with no active conditions generally means no additional cardiac testing — proceed with risk-based peri-operative recommendations. Reflexive testing here is low-yield.