Intraoperative Hemodynamic Management for Cardiac Surgery
Real-time hemodynamic decision support for cardiac surgery cases
What You Can Do
You receive clinical decision support for managing complex hemodynamic scenarios during cardiac surgical cases. The skill synthesizes multiple physiologic parameters—including TEE interpretations, arterial pressures, cardiac output measurements, and systemic vascular resistance—to guide vasoactive drug selection, fluid management strategy, and troubleshooting of intraoperative instability. This helps you maintain adequate perfusion pressure and surgical conditions while weaning from cardiopulmonary bypass.
Features
correlates transesophageal echocardiography findings (wall motion, ventricular function, valve competence) with arterial line and cardiac output data to identify perfusion gaps
provides structured recommendations for initial drug choice and titration strategy based on hemodynamic phenotype (low output, low resistance, high afterload)
guides hemodynamic assessment and pharmacologic optimization during separation from cardiopulmonary bypass with marginal parameters
helps determine appropriate fluid resuscitation versus diuresis based on ventricular filling pressures, TEE findings, and urine output
systematizes response to acute hemodynamic changes (hypotension, hypertension, low cardiac output) by considering surgical, anesthetic, and physiologic causes
addresses interactions between volatile anesthetic requirements, inotropic support, and mean arterial pressure targets
tailors approach for patients with reduced ejection fraction, pulmonary hypertension, or significant valvular disease undergoing cardiac surgery
Example Output
Example 1: Hypotension Post-CPB Weaning
Input: "Post-CPB patient with MAP 58, CI 1.8, SVRI 1200, TEE shows mild RV dilation, normal LV function, IVC plethora"
Output:
- Primary problem: Right ventricular afterload mismatch with fluid overload
- Recommended approach: Low-dose inhaled pulmonary vasodilator (nitric oxide or epoprostenol) + reduce volatile anesthetic + mild diuresis
- Drug selection: Milrinone preferred over dopamine (inotrope + RV afterload reduction without systemic hypotension)
- Monitoring: Recheck TEE RV function in 5–10 minutes; target MAP >65, SVRI 800–1200
Example 2: Hypertension with High SVR During Weaning
Input: "Weaning from CPB, MAP 110, SVRI 1800, HR 65, TEE: normal LV, adequate filling"
Output:
- Primary problem: Excess catecholamine effect with systemic vasoconstriction
- Recommended approach: Increase volatile anesthetic depth + vasodilator (nicardipine or nitroprusside) + optimize anesthetic depth
- Avoid: Increased inotropes or fluid resuscitation (will worsen hypertension)
- Target: MAP 80–95, SVRI 1000–1400, maintaining adequate urine output
Example 3: Low Cardiac Output with Normal TEE
Input: "CABG case, CI 1.9, MAP 72, SVRI 900, TEE shows normal LV global function, normal filling"
Output:
- Primary problem: Likely anesthetic-induced myocardial depression
- Recommended action: Reduce volatile anesthetic, increase FiO₂, consider mild inotropic support (epinephrine or dopamine low-dose)
- Verify: Check for acute surgical issues (graft obstruction, bleeding); ensure adequate temperature and acid–base status
- Next steps: Recheck CI after 5 min; if unchanged and TEE normal, proceed with epinephrine 0.02–0.05 mcg/kg/min
What's Included
- SKILL.md instruction file: complete framework for hemodynamic assessment and decision-making
- TEE-to-hemodynamics mapping template: correlates echocardiographic findings with perfusion parameters and drug selection
- Vasoactive drug selection checklist: phenotype-based recommendations for inotropes, vasopressors, and vasodilators with relative contraindications
- CPB weaning protocol workflow: step-by-step hemodynamic optimization from separation through ICU handoff
- Troubleshooting decision tree: systematic approach to acute hemodynamic changes (hypotension, hypertension, arrhythmia, low cardiac output)
Who It's For
- Cardiac anesthesiologists — managing complex hemodynamics during CABG, valve repair/replacement, and advanced cardiac cases
- CRNAs in cardiac anesthesia — providing structured decision support for vasoactive drug selection and hemodynamic troubleshooting in the OR
- Cardiac intensivists — optimizing hemodynamics during early postoperative management after weaning from CPB
- Anesthesia residents/fellows — learning systematic hemodynamic assessment and drug selection in high-acuity cardiac cases
- Perioperative nurses — understanding hemodynamic targets and medication rationales for patient advocacy and communication
Best For
- Troubleshooting intraoperative hypotension or low cardiac output during cardiac surgery
- Selecting initial and titrating vasoactive medications based on hemodynamic phenotype
- Weaning from cardiopulmonary bypass with marginal hemodynamics or RV dysfunction
- Integrating TEE findings with arterial line and cardiac output data to guide management decisions
- Managing fluid and inotrope strategy in high-risk cardiac patients (reduced EF, pulmonary hypertension, significant valvular disease)
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