What's Up in Surgery? — Numbers

Card 1 of 5: Later appendicectomy after antibiotics-first

VerifiedAppendicectomy 📖 Ch 1 · Colorectal, Anorectal & Pilonidal Disease

EMR-APP-ALT-01

Later appendicectomy after antibiotics-first

What is the number?

The number is concealed — recall it first, then flip the card and grade yourself honestly.

EMR-APP-ALT-01 · Later appendicectomy after antibiotics-first

29% at 90 days; 40% at 1 yr; 46% at 2 yrs; 49% at 3–4 yrs (appendicolith: 41% at 90 days vs 25% without)

Verified. Confirmed in 2+ independent sources, full text opened

Applies to — the population, exactly as printed

Uncomplicated appendicitis, adults

Evidence tier (the registry's wording)

RCT (largest) + RCT long-term

Sources

CODA Collaborative, NEJM 2020;383:1907–1919 + longer-term outcomes NEJM 2021. Context: APPAC 10-year follow-up (JAMA 2026): cumulative appendicectomy 44.3%, true recurrence 37.8%

Grade yourself — spaced repetition

Verification stamp: 🟢 Verified · Registry audit 2026-11-06 · Pending triple review · Surgery Code registry — family file 01 (01-appendectomy.md), coded unit; registry audit 2026-11-06. Permalink to this card