Enhanced recovery after surgery (ERAS)

ERAS Fundamentals - The Speedy Recovery Blueprint

ERAS is a multimodal, evidence-based approach to minimize the surgical stress response, reduce complications, and accelerate recovery. It focuses on patient optimization before, during, and after surgery.

• Pre-operative Phase

  • Patient education & counseling.
  • Carbohydrate loading up to 2 hours before surgery.
  • Avoids prolonged fasting & bowel prep.

• Intra-operative Phase

  • Opioid-sparing, multimodal analgesia (e.g., regional blocks).
  • Goal-directed fluid therapy; avoid overload.
  • Minimally invasive surgery; avoid drains/tubes.

• Post-operative Phase

  • Early mobilization & feeding.
  • Prompt removal of catheters.

⭐ ERAS protocols can decrease hospital length of stay by 2-3 days and reduce post-operative complications by up to 50%.

Pre-operative Prep - Fueling Up for Surgery

• Patient Counseling: Sets expectations, reduces anxiety, and ensures compliance with the ERAS pathway.
• Nutrition Optimization:
  • End Prolonged Fasting: No solids for 6 hours pre-op; clear liquids are encouraged up to 2 hours before anesthesia.
  • Carbohydrate Loading: A complex carbohydrate drink is given the night before and again 2-3 hours pre-op.
    • Benefits: ↓ postoperative insulin resistance, preserves muscle mass, ↓ anxiety & thirst.
• Bowel Preparation:
  • Selective Use: Routine mechanical bowel prep is avoided. It's reserved for specific procedures (e.g., left-sided colorectal surgery) to prevent dehydration and electrolyte shifts.

⭐ Carbohydrate loading significantly reduces postoperative insulin resistance, a key factor in improving recovery and decreasing hyperglycemic complications.

Intra-op Finesse - The Surgeon's & Anesthetist's Dance

• Surgical Technique:

  • Favor minimally invasive surgery (laparoscopic, robotic) to ↓ tissue trauma.
  • Avoid routine drains (peritoneal, NG tubes).
  • Use local anesthetic wound infiltration.

• Anesthesia Goals:

  • Normovolemia: Goal-Directed Fluid Therapy (GDFT) to maintain euvolemia, guided by cardiac output monitoring.
  • Opioid-Sparing Analgesia: Multimodal approach using regional blocks (epidural, TAP), IV lidocaine, ketamine, NSAIDs.
  • Normothermia: Maintain core temp >36°C with forced-air warming.
  • PONV Prophylaxis: Use multimodal antiemetics.

⭐ High-Yield: Goal-Directed Fluid Therapy (GDFT) uses cardiac output monitoring to guide IV fluids. This prevents fluid overload, which impairs gut function and healing, a major departure from traditional liberal fluid strategies.

Post-op Power-Up - Getting Home Sooner

• ERAS (Enhanced Recovery After Surgery): A multimodal, evidence-based approach to minimize the surgical stress response and accelerate recovery.
• Core Pillars (📌 "ERAS"):
  • Early Nutrition: No prolonged fasting. Pre-op carb drinks; post-op chewing gum & early diet.
  • Rapid Mobilization: Ambulate out of bed within 24 hours.
  • Analgesia (Opioid-Sparing): Multimodal approach using NSAIDs, gabapentin, and regional blocks.
  • Stress Reduction: Avoid salt/water overload. Minimize drains, NG tubes, and urinary catheters.

⭐ Chewing gum post-operatively is a simple ERAS measure that can stimulate bowel motility and reduce the duration of ileus.

High‑Yield Points - ⚡ Biggest Takeaways

• ERAS is a multimodal perioperative pathway designed to accelerate recovery and reduce surgical stress.
• Key principles include avoiding prolonged preoperative fasting, often with carbohydrate loading.
• It emphasizes opioid-sparing multimodal analgesia and favors regional anesthesia.
• Early mobilization and early oral nutrition are crucial post-operatively to prevent ileus.
• Goal-directed fluid management helps prevent fluid overload and organ dysfunction.
• ERAS leads to decreased length of stay and fewer postoperative complications.