🔥 Antibiotics-First Non-Operative Appendicitis Simulator

Uncomplicated Appendicitis Eligibility Criteria

Placeholder: imaging and labs confirm appendicitis without perforation or abscess.

• Required: CT/US confirmed (placeholder criterion)
• Relative flag: Appendicolith (placeholder criterion)
• Excluded: Perforation (placeholder criterion)
• ~50/50: CODA trial arm split (placeholder statistic)

Imaging confirmation

Placeholder: CT or ultrasound rules out perforation, abscess, or free fluid.

Patient counseling

Placeholder: shared decision-making compares antibiotics versus appendectomy.

Exclusion criteria

Placeholder: complicated cases and appendicoliths lower non-operative success.

IV Antibiotic Initiation

Placeholder: broad-spectrum IV antibiotics start promptly on admission.

• Ceftriaxone+Metro: Typical regimen (placeholder example)
• 1–2 days: IV duration (placeholder statistic)
• 24–48 h: Fever response (placeholder statistic)
• ~50%: Pain score drop (placeholder statistic)

Regimen selection

Placeholder: coverage targets gram-negative and anaerobic gut flora.

Inpatient monitoring

Placeholder: vitals, pain, and white count are checked serially.

Escalation criteria

Placeholder: worsening signs trigger imaging and possible surgery.

Transition to Oral Antibiotics

Placeholder: stable patients switch to oral antibiotics before discharge.

• ~10 days: Total course (placeholder statistic)
• Cipro+Metro: Oral agent (placeholder example)
• Afebrile 24h: Discharge readiness (placeholder criterion)
• ~90%: Adherence rate (placeholder statistic)

Switch criteria

Placeholder: tolerating oral intake and improving symptoms allow switch.

Home course completion

Placeholder: patients complete the remaining oral antibiotic days at home.

Follow-up scheduling

Placeholder: a clinic check confirms resolution after the full course.

Symptom Resolution Monitoring

Placeholder: pain, fever and inflammatory markers are tracked to confirm resolution.

• ~70%: Resolution rate (placeholder statistic (CODA-like))
• ~29%: Failure needing surgery (placeholder statistic within 90d)
• ~7 days: CRP normalization (placeholder statistic)
• ~1 week: Return to activity (placeholder statistic)

Clinical checkpoints

Placeholder: symptom diaries and clinic visits confirm improvement.

Warning signs

Placeholder: recurring pain or fever prompts re-evaluation for surgery.

Lab trend tracking

Placeholder: CRP and white count trends support resolution confidence.

Recurrence Risk Over the Following Year

Placeholder: some patients experience recurrent appendicitis within a year.

• ~30–40%: 1-year recurrence (placeholder statistic (CODA-like))
• 6 months: Most recurrences by (placeholder statistic)
• Considered: Delayed appendectomy (placeholder outcome)
• Higher risk: Appendicolith recurrence (placeholder statistic)

Recurrence timeline

Placeholder: risk accumulates gradually across the 12-month follow-up.

Delayed appendectomy decision

Placeholder: recurrence or persistent risk may prompt elective surgery.

Long-term outlook

Placeholder: most patients avoid surgery after successful antibiotic course.