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Not yet recruitingNCT06490185Updated Jul 8, 2024

Peri-appendiceal Abscess and Phlegmon in Acute Complicated Appendicitis Patients

An observational study in Acute Complicated Appendicitis With Peri-appendiceal Abscess or Phlegmon, sponsored by Shanghai Zhongshan Hospital. Not yet recruiting. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2024-07-08.

Sponsored by Shanghai Zhongshan Hospital · Observational

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
150
Ages
18 Years to 100 Years
Sex
All
01

Study summary

This study aim to analyze the clinical data of patients who underwent emergency appendectomy for acute complicated appendicitis with peri-appendiceal abscess or phlegmon, identify factors influencing the post-operative length of hospital stay (LOS), and improve treatment strategies.

Read the detailed description

Appendicitis is defined as inflammation of the vermiform appendix and worldwide is the most common reason for emergency abdominal surgery. Globally, the annual incidence is 96.5 to 100 cases per 100 000 adult population. For acute uncomplicated appendicitis, antibiotic therapy has emerged as the primary treatment, often allowing patients to avoid surgery. However, the management of acute complicated appendicitis requires careful consideration of various treatment options.

Complicated appendicitis, characterized by peri-appendiceal phlegmon or abscess formation, presents additional challenges and often requires a more comprehensive treatment approach. Management strategies have evolved to incorporate both conservative and surgical treatments, tailored to the patient's condition. Typically, for early-stage appendicitis (duration of symptoms ≤72 hours) with peri-appendiceal phlegmon, surgical treatment is recommended, while late-stage appendicitis (duration of symptoms >72 hours) or cases with peri-appendiceal abscess formation are initially managed conservatively with percutaneous drainage and antibiotics. Despite this, some patients still prefer surgical intervention for various reasons. Currently, there is a lack of studies on the outcomes of patients with acute complicated appendicitis who opt for surgery over conservative treatment, highlighting the need for further research.

In practical terms, the benefits and risks of all treatment options should be thoroughly presented and discussed. Recommendations for surgery versus a conservative treatment-first approach should be based on individual clinical and radiographic findings, as well as patient treatment expectations and preferences. This study aim to investigate the clinical significance of peri-appendiceal abscess or phlegmon in the surgical management of acute complicated appendicitis.

02

Conditions studied

  • Acute Complicated Appendicitis With Peri-appendiceal Abscess or Phlegmon

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03

In context

Cellulitis

160 studies on the registry are indexed under Cellulitis; 14 are open to participants now.

This study's planned enrollment of 150 is below the median of 208 across 29 observational studies indexed under Cellulitis.

Browse Cellulitis studies →

Lead sponsor

Shanghai Zhongshan Hospital is the lead sponsor of 652 studies on the registry; 291 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Sampling method
Probability sample

Study population

Acute complicated appendicitis patients with peri-appendiceal abscess or phlegmon who met the criteria.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients who were aged ≥18 years, Patients who were clinically diagnosed with acute appendicitis, Patients who had a peri-appendiceal abscess or phlegmon on CT scan, Patients who opted to undergo immediate emergency surgery as their primary choice, Patients who refused conservative treatment first (antibiotic therapy and ultrasound/CT-guided drainage).

Exclusion criteria

Exclusion Criteria:

  • Patients younger than 18 years, Patients have a history of prior , Patients with diffuse peritonitis, Patients with incomplete clinical or pathological records.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
150 participants (estimated)
Patient registry
No

Interventions

  • OtherClinical data collection

    Clinical significance of peri-appendiceal abscess and phlegmon in acute complicated appendicitis patients undergoing emergency appendectomy

06

What researchers measure

Primary outcomes

  1. The post-operative length of hospital stay (LOS)

    Time frame: January 01, 2025 to December 31, 2025.

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 8, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06490185
Responsible party
Sponsor
First posted
Jul 8, 2024
Start date
Jan 1, 2025 (estimated)
Primary completion
Dec 31, 2025 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Jul 8, 2024

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jun 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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