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When Appendicitis Extends Beyond Appendectomy: Bowel Resection and Morbidity in Complicated Appendicitis
David A Lieb1,2, Basilio N Bautista1, Amy Y Lee1
1Department of Surgery, Metropolitan Hospital Center, New York, NY, USA.
The American Surgeon
|July 29, 2026
Summary
Surgery for complicated appendicitis involves more bowel resections and higher complication rates than for uncomplicated cases. However, in-hospital mortality remains similar, highlighting the need for informed patient discussions on surgical risks.
Area of Science:
- General Surgery
- Gastrointestinal Surgery
- Surgical Outcomes
Background:
- Appendicitis management guidelines favor surgery for complicated cases.
- Non-operative management is increasingly considered for complicated appendicitis due to concerns about surgical complications.
- This study compares in-hospital outcomes of surgical intervention for uncomplicated versus complicated appendicitis.
Purpose of the Study:
- To compare in-hospital outcomes between surgical management of uncomplicated and complicated appendicitis.
- To analyze patient characteristics, extent of resection, length of stay, and in-hospital outcomes.
- To inform perioperative counseling and shared decision-making for appendicitis surgery.
Main Methods:
- Utilized the 2019-2022 National Inpatient Sample for adult emergency appendicitis hospitalizations.
- Compared outcomes for uncomplicated versus complicated appendicitis using survey-weighted multivariable regression.
- Examined patient demographics, surgical procedures, length of stay, and complications.
Main Results:
- Identified over 325,000 emergency appendicitis surgeries; 45% were complicated appendicitis.
- Complicated appendicitis surgery more frequently required unplanned bowel resection (3% vs 1%).
- Complicated appendicitis had higher rates of gastrointestinal, infectious, and wound complications, and longer hospital stays (3.9 vs 1.7 days), with similar in-hospital mortality.
Conclusions:
- Surgical management of complicated appendicitis is associated with increased operative complexity and higher postoperative complication rates compared to uncomplicated cases.
- Despite increased complications, in-hospital mortality did not differ significantly between the two groups.
- Emphasizes the importance of thorough perioperative counseling regarding risks and expected outcomes for complicated appendicitis surgery.
Keywords:
appendicitiscomplicated appendicitisextent of resectiongeneral surgerynational inpatient sampleoperative outcomesMore Related Videos
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