Enhanced Recovery After Colorectal Surgery

ERAS Core Concepts - Recovery Revolution

• Goal: Attenuate surgical stress response, hasten functional recovery, ↓ complications.
• Approach: Multimodal, evidence-based, standardized perioperative care pathway.
• Focus: Optimizing patient's physiological & functional status pre, intra & post-op.
• Key Outcomes:
  • ↓ Length of hospital stay (LOS)
  • ↓ Post-operative morbidity (e.g., infections)
  • ↑ Patient satisfaction & quality of life
  • Faster return to daily activities

⭐ ERAS protocols significantly reduce the incidence and duration of post-operative ileus, a common complication after colorectal surgery.

Pre-operative ERAS - Priming the Patient

• Patient education & counselling: Crucial for compliance.
• Nutritional screening & optimisation: Correct malnutrition (e.g., Albumin >3 g/dL).
• Smoking & alcohol cessation: Stop ≥4 weeks prior.
• Anaemia correction: Target Hb >10-12 g/dL.
• No prolonged fasting: Solids 6h, clear fluids up to 2h pre-op.
• Carbohydrate loading: e.g., 800ml night before, 400ml 2h pre-op (maltodextrin).

  ⭐ Oral carbohydrate loading (e.g., maltodextrin drink) reduces post-operative insulin resistance and improves patient comfort.

• Selective bowel preparation: No routine Mechanical Bowel Prep (MBP) for most colonic surgery; consider for low anterior resections.
• Thromboprophylaxis: Risk-stratified (e.g., LMWH).
• Antimicrobial prophylaxis: Administer <60 mins before incision.

Intra-operative ERAS - Surgical Symphony

• Goal: Minimize surgical stress, optimize physiology.
• Anesthesia: Thoracic epidural analgesia (T6-T11) or transversus abdominis plane (TAP) block. Avoid long-acting opioids.
• Surgical Technique: Laparoscopic/robotic approach preferred (↓pain, ↓ileus, ↓LOS).
  • Transverse incisions if open.
  • Avoid routine drains/nasogastric tubes (NGT).
• Fluid Management: Goal-directed fluid therapy (GDFT); avoid overload. Target euvolemia.
  • Restrictive intraoperative fluids (e.g., < 3L crystalloid).
• Normothermia: Maintain core temperature > 36°C (warming devices).

⭐ High-Yield Fact: Routine use of drains and NGTs is discouraged in ERAS protocols for colorectal surgery as they can increase discomfort and delay recovery without proven benefit in uncomplicated cases.

Post-operative ERAS - Mobilize & Nourish

• Mobilization:
  • Out of Bed (OOB): Day of surgery (POD 0) or POD 1.
  • Ambulate: Target 2 hrs on POD 0, 6 hrs by POD 1.
  • Benefits: ↓VTE, ↓ileus, ↓pulmonary complications.
• Nutrition:
  • Oral Intake: Clear liquids within hours; regular diet by POD 1-2.
  • No routine Nasogastric Tube (NGT).
  • Gum chewing: 3 times/day. 📌 Stimulates gut!
  • IV fluids: Stop once oral intake adequate (target POD 1).
• Catheters & Analgesia:
  • Urinary catheter: Remove POD 1 (within 24 hrs).
  • Analgesia: Multimodal, opioid-sparing.

⭐ Early oral feeding (within 24 hours) after colorectal surgery does not increase anastomotic leak rates and reduces length of hospital stay.

ERAS Benefits & Barriers - Winning Formula

• Benefits:
  • ↓ Length of Stay (LOS), ↓ complications (e.g., ileus, SSI).
  • ↓ Readmission rates, ↑ patient satisfaction.
  • Faster recovery & return to normal activities, overall cost savings.
• Barriers:
  • Resistance to change from traditional practices.
  • Lack of multidisciplinary team (MDT) coordination.
  • Patient non-compliance or complex comorbidities.
  • Insufficient resources, education, or standardized protocols.
• Winning Formula:
  • Multimodal approach: pre-operative, intra-operative, post-operative.
  • Proactive patient education and engagement.
  • Dedicated MDT with clear communication channels.
  • Continuous audit, feedback, and protocol refinement.

⭐ ERAS protocols are proven to significantly reduce postoperative ileus, a key factor in prolonged hospital stays.

High‑Yield Points - ⚡ Biggest Takeaways

• ERAS is a multimodal perioperative care pathway designed to accelerate recovery after colorectal surgery.
• Emphasizes preoperative patient education, carbohydrate loading, and no prolonged fasting.
• Intraoperative goals include minimally invasive techniques, goal-directed fluid therapy, and maintaining normothermia.
• Postoperative pillars are early oral feeding, early ambulation, and multimodal opioid-sparing analgesia.
• Avoids routine NG tubes and abdominal drains to promote early gut function and mobility.
• Core aims: reduced hospital stay, fewer postoperative complications, and faster return to normal function.