Timing of computed tomography in acute diverticulitis

Area of Science:

• Gastroenterology
• Radiology
• Surgical Pathology

Background:

• Acute left-sided diverticulitis is a common condition requiring accurate diagnosis.
• Clinical diagnosis alone can be insufficient, leading to potential delays in appropriate treatment.
• The role of imaging, specifically computed tomography (CT), in managing this condition is under investigation.

Purpose of the Study:

• To evaluate the utility and optimal timing of computed tomography (CT) in the management of acute left-sided diverticulitis.
• To assess the diagnostic accuracy of clinical diagnosis versus CT in patients presenting with diverticulitis.
• To analyze the impact of CT timing on complication identification and healthcare costs.

Main Methods:

• A retrospective review of 47 patients diagnosed with acute diverticulitis over a four-year period.
• Comparison of outcomes for patients diagnosed clinically versus those who underwent computed tomography (CT) or laparotomy.
• Evaluation of the timing of CT scans in relation to patient admission and treatment initiation.

Main Results:

• Computed tomography (CT) identified inaccuracies in clinical diagnoses, with 36% of patients undergoing CT having normal scans.
• Abscesses were identified in 6 patients, with only 2 detected on admission; the remaining 4 were found on delayed CT after treatment failure.
• Inaccurate diagnoses led to 37 hospital days; a universal CT approach was projected to be more cost-effective than admissions for misdiagnosed cases.

Conclusions:

• Routine computed tomography (CT) on admission for acute diverticulitis enhances diagnostic precision.
• Early CT facilitates prompt identification of complications such as abscesses.
• Implementing routine admission CT may decrease hospital expenditures by optimizing patient management and reducing unnecessary admissions.