ASCRS Ch07 — Optimizing Outcomes with Enhanced Recovery

Citation: Thacker J, Morin N. "Optimizing Outcomes with Enhanced Recovery." In: Steele SR, et al. (eds.), The ASCRS Textbook of Colon and Rectal Surgery, 4th ed. Springer Nature Switzerland AG; 2022. pp. 121–139 (PDF pp. 135–153 of the combined textbook file). Source file: raw/ASCRS Textbook 4th Ed.pdf (full 1,198-page textbook; cite by page range within the single PDF).

Type: Specialty textbook chapter (reference/background, not primary literature; itself a narrative synthesis of >100 cited primary sources, most not independently ingested here).

Scope

Seventh chapter of the sequential full-textbook ingest (see ASCRS Ch01 - Anatomy and Embryology for the ingest's scope/plan). Covers the origins and history of enhanced recovery/ERAS (Kehlet, Wilmore, the ERAS Society); the five-phase model of care; preoperative elements (education, smoking cessation, nutrition/PONS score, anemia workup, hyperglycemia/HbA1c triage, carbohydrate loading, bowel preparation); in-hospital preoperative elements (PONV prophylaxis, multimodal analgesia, VTE prophylaxis/antibiotics); intraoperative elements (multimodal analgesia, intentional fluid management and its AKI/ileus controversy, minimally invasive approaches, minimal drains/tubes); postoperative elements (early diet/mobilization, multimodal analgesia, standard discharge criteria); special ERAS populations (stoma creation/reversal, emergency surgery/trauma, the elderly, inflammatory bowel disease); economic impact; and future directions (wearables, telemedicine, EHR-integrated recovery data).

Key content

Full synthesis written into the new concept page Enhanced Recovery After Surgery (ERAS) rather than summarized twice here — a genuinely new topic for the wiki with no prior dedicated page. Cross-links added to existing pages rather than duplicating: Ileal Pouch-Anal Anastomosis (IPAA)'s loop-ileostomy diversion practice now points to this chapter's stoma-education ERAS findings; Crohn Disease gained a new blockquote on IBD-specific ERAS outcomes (higher baseline risk, still net benefit); and Preoperative Evaluation & Perioperative Risk Optimization (ASCRS Ch6) is cross-linked bidirectionally where the two chapters' content overlaps (preoperative hyperglycemia management, VTE prophylaxis).

Limitations

• Textbook chapter, not primary literature; most figures (PONS/malnutrition statistics, PONV risk score, economic savings estimate, IBD-specific ERAS outcome data) are drawn from cited studies the chapter authors summarize, not independently verified against the primary sources.
• The chapter explicitly flags its own unresolved controversy on intraoperative fluid management (a large multinational RCT found higher AKI with restrictive fluid protocols, but the chapter authors note methodological limitations in applying that trial's findings to ERAS-specific fluid management) — preserved as genuine uncertainty on the new page rather than resolved.
• Economic impact figure ($3,101/patient) comes from a single cited systematic review/meta-analysis.

Relevance

Seventh entry in the ASCRS ingest, and the first chapter in this ingest to introduce a genuinely new top-level topic (enhanced recovery/ERAS) rather than extending an existing condition or procedure page. Creates Enhanced Recovery After Surgery (ERAS) and adds targeted cross-references to three existing pages (Ileal Pouch-Anal Anastomosis (IPAA), Crohn Disease, Preoperative Evaluation & Perioperative Risk Optimization) rather than duplicating content — consistent with the ingest's established de-duplication approach.