What preoperative recommendations should be followed for a patient with Addison disease (primary adrenal insufficiency) undergoing surgery, including stress-dose glucocorticoid regimen, mineralocorticoid replacement, fluid and electrolyte management, and monitoring?

Preoperative Management for Addison Disease

For patients with Addison disease undergoing surgery, administer hydrocortisone 100 mg IV at induction followed immediately by continuous infusion of 200 mg/24 hours, then double oral hydrocortisone doses for 48 hours to one week postoperatively depending on surgical magnitude. 1

Stress-Dose Glucocorticoid Protocol

Intraoperative Management

• At induction: Give hydrocortisone 100 mg IV bolus
• Immediately after bolus: Start continuous IV infusion of hydrocortisone 200 mg over 24 hours
• Alternative: Hydrocortisone 50 mg IM every 6 hours if continuous infusion unavailable 1

This regimen reflects the physiologic stress response where cortisol secretion increases five-fold (to approximately 100 mg/day) during major surgery, typically returning to baseline within 24-48 hours 1.

Postoperative Management

While NPO or vomiting:

• Continue hydrocortisone 200 mg/24h IV infusion OR
• Hydrocortisone 50 mg IM/IV every 6 hours 1

Once tolerating oral intake:

• Major surgery: Double usual oral hydrocortisone dose for up to one week, then resume maintenance
• Uncomplicated recovery: Double dose for 48 hours minimum 1
• Example: If baseline is 10-5-5 mg, give 20-10-10 mg postoperatively 1

If patient remains critically ill: Continue IV stress-dose coverage until clinical improvement 1

Mineralocorticoid Management

Critical point: Mineralocorticoid replacement (fludrocortisone) is not required when hydrocortisone dose exceeds 50 mg/24 hours, as hydrocortisone provides adequate mineralocorticoid activity at these doses 2.

Resume fludrocortisone only when:

• Hydrocortisone dose tapers below 50 mg/24h
• Patient returns to enteral feeding
• Usual dose: 0.05-0.2 mg daily 3

Special Consideration for Bowel Procedures

Patients requiring bowel prep need close clinical supervision with consideration for:

• IV fluids during preparation
• Parenteral glucocorticoid administration
• Especially critical for fludrocortisone-dependent or vasopressin-dependent patients who are less hemodynamically stable 1

Fluid and Electrolyte Management

Key Monitoring Parameters

• Blood pressure: Hypotension is a cardinal sign of inadequate replacement
• Electrolytes: Watch for hyperkalemia and hyponatremia (signs of mineralocorticoid deficiency)
• Volume status: Patients with mineralocorticoid dependency are particularly vulnerable to volume depletion 1

Preoperative Optimization

• Ensure adequate hydration status
• Correct any existing electrolyte abnormalities
• Verify patient is on appropriate baseline replacement therapy

Critical Pitfalls to Avoid

Medication Errors

8.6% of adrenal crisis cases in hospitalized patients result from insufficient glucocorticoid medication or medication errors/omissions on wards 1. This represents a preventable cause of morbidity and mortality.

Prevention strategies:

• Never interrupt physiological replacement therapy 1
• Clearly document stress-dose protocol in orders
• Educate ward staff about the critical nature of timing
• Listen to experienced patients who recognize their own warning signs 1

Risk Stratification

Higher-risk patients requiring extra vigilance:

• Those with comorbid asthma or diabetes
• Patients with mineralocorticoid or vasopressin dependency (less stable than secondary adrenal insufficiency) 1
• History of previous adrenal crisis (approximately 50% of crisis patients have prior episodes) 1

Mortality Context

Patients with adrenal insufficiency have 2-3 times higher all-cause mortality compared to general population, with adrenal crisis incidence of 6-8 per 100 patient-years 1. Two deaths occurred during adrenal crisis in a 2-year prospective study of 423 patients 1. Inadequate perioperative management directly contributes to this excess mortality.

Monitoring Protocol

Intraoperative

• Continuous hemodynamic monitoring
• Heightened awareness for unexplained hypotension despite adequate stress-dose coverage 4

Postoperative

• Daily clinical assessment of well-being
• Blood pressure monitoring (orthostatic if ambulatory)
• Electrolyte measurements
• Recognition that adrenal crisis symptoms can occur even with normal/high plasma cortisol levels (concept of "relative adrenal insufficiency") 1

Transition to Maintenance

• Gradual taper over 48 hours to one week based on recovery trajectory
• Resume baseline fludrocortisone when hydrocortisone <50 mg/24h
• Patient education about self-management during recovery period