Perioperative medicine & outcomes

Safety, Efficacy, and Cost-effectiveness of Outpatient Surgery for Uncomplicated Acute Appendicitis: The PENDI-CSI Randomized Clinical Trial

Ann SurgPublished Randomised controlled trial

Authors' conclusion

Outpatient appendectomy is safe and effective for uncomplicated acute appendicitis.

Study context

Population
Patients aged older than 14 years with uncomplicated acute appendicitis (excluding pregnancy, neoplasms, inflammatory bowel disease, ASA IV)PENDI-CSI trial
Participants
300 patients
Comparison
Outpatient vs inpatient appendectomy
  • Outpatient surgery (OPS)n = 149
  • Inpatient surgery (IPS)n = 151reference
Methodological detailsEnrolled October 2018 to June 2021
  • Enrolled October 2018 to June 2021

Primary result

As reported in the abstract

Discharge without admission (OPS)

OPS

85.9%

128 of 149

Further findings

Predictors of admission in the OPS group

Age over 31 years, RR
2.42 (1.04-5.65)
Hypertension, RR
6.21 (3.22-11.97)
Anesthetic risk II-III, RR
2.63 (1.17-5.94)
Previous abdominal surgery, RR
3.34 (1.55-7.20)
Postoperative pain VAS >6, RR
4.28 (2.67-6.86)
Postoperative fear, RR
2.2 (1.04-4.67)

Perceived quality

Similar in both groups

Hospital costs

Savings per patient with the outpatient modality
€1 034.97
  • P < 0.001

Safety

Complications, readmissions, reinterventions · 1 month postoperatively

No differences between groups

Original publication

Safety, Efficacy, and Cost-effectiveness of Outpatient Surgery for Uncomplicated Acute Appendicitis: The PENDI-CSI Randomized Clinical Trial. Ann Surg. Published 29 August 2023. doi:10.1097/sla.0000000000006083

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