Is there a role for abdominal computed tomographic scans in appendicitis?

Area of Science:

• Radiology
• Gastroenterology
• Surgical Diagnostics

Background:

• Appendicitis diagnosis can be challenging, particularly in patients with indeterminate clinical findings.
• Traditional diagnostic methods may lead to delays or unnecessary surgical interventions.

Purpose of the Study:

• To evaluate the diagnostic effectiveness of abdominal computed tomographic scanning (ACTS) in adult patients with suspected appendicitis.
• To assess the impact of ACTS on negative appendectomy rates and overall patient management.

Main Methods:

• Retrospective analysis of 97 adult patients with appendicitis in their differential diagnosis.
• Patients included those with insufficient clinical findings for immediate surgical decision or discharge.
• Data collected over a 14-month period at a community teaching hospital.

Main Results:

• ACTS demonstrated high accuracy: 96% overall, with 92% positive predictive value and 98% negative predictive value.
• The negative appendectomy rate in the ACTS group was 5.8%, significantly lower than the hospital's prior rate of 14%.
• ACTS provided definitive diagnoses or alternative diagnoses in 57.7% of patients, influencing treatment decisions.

Conclusions:

• Abdominal computed tomographic scanning is an accurate and beneficial tool for diagnosing appendicitis in clinically indeterminate cases.
• Selective use of ACTS can reduce negative appendectomy rates and hospital admissions for observation.
• Predicting which specific patients will benefit most from ACTS remains an area for further investigation.