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Diagnostic Performance of Serum Calprotectin in Acute Appendicitis

Diagnostic Performance of Serum Calprotectin in Acute Appendicitis: A Prospective Comparative Analysis Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07643142
Acronym
SCP-AA
Enrollment
74
Registered
2026-06-11
Start date
2015-12-13
Completion date
2016-04-21
Last updated
2026-06-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abdominal Pain, Acute Appendicitis

Keywords

serum calprotectin, acute appendicitis, diagnostic biomarker, inflammatory marker

Brief summary

This prospective observational study evaluated the diagnostic performance of serum calprotectin in patients presenting with acute abdominal pain and suspected acute appendicitis. Patients with histopathologically confirmed acute appendicitis were compared with patients diagnosed with nonspecific abdominal pain. Serum calprotectin levels were analyzed and compared with conventional inflammatory markers and the Alvarado score to assess their diagnostic value in acute appendicitis.

Detailed description

Acute appendicitis is one of the most common causes of acute abdominal pain requiring emergency surgical intervention. However, establishing an accurate diagnosis may be difficult, particularly in patients presenting with nonspecific abdominal pain or atypical clinical findings. Conventional inflammatory markers and clinical scoring systems are useful adjuncts, but their diagnostic accuracy remains limited. This prospective single-center observational study evaluated the diagnostic performance of serum calprotectin in adult patients presenting with acute abdominal pain and suspected acute appendicitis. Patients with histopathologically confirmed acute appendicitis were compared with a control group consisting of patients diagnosed with nonspecific abdominal pain after clinical, laboratory, radiological evaluation, and follow-up. Serum calprotectin concentrations were measured and compared with white blood cell count, C-reactive protein, ferritin, and the Alvarado score. The relationship between serum calprotectin levels and histopathological severity of appendicitis was also assessed. The primary objective of the study was to determine the diagnostic accuracy of serum calprotectin in distinguishing acute appendicitis from nonspecific abdominal pain.

Interventions

DIAGNOSTIC_TESTSerum Calprotectin Measurement

Measurement of serum calprotectin levels using ELISA for diagnostic evaluation of acute appendicitis.

Sponsors

Fatih Sultan Mehmet Training and Research Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Age between 18 and 75 years * Presentation to the emergency department with acute abdominal pain and suspected acute appendicitis * Willingness to participate and provide informed consent

Exclusion criteria

* Previous abdominal surgery * Chronic inflammatory or autoimmune disease * Active infection other than suspected appendicitis * Use of systemic anti-inflammatory or immunosuppressive therapy * Pregnancy * Incomplete clinical or laboratory data

Design outcomes

Primary

MeasureTime frameDescription
Diagnostic accuracy of serum calprotectin for acute appendicitisAt admission to the emergency departmentComparison of serum calprotectin levels between patients with acute appendicitis and nonspecific abdominal pain.

Countries

Turkey (Türkiye)

Contacts

PRINCIPAL_INVESTIGATORfatih kilic, MD

Fatih Sultan Mehmet Training and Research Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 12, 2026