Evaluation and Management of Abdominal Conditions in the Elderly

Diagnostic Considerations

• The American Gastroenterological Association recommends a comprehensive initial evaluation for elderly patients with abdominal symptoms, including complete blood counts, serum albumin, ferritin, and C-reactive protein 1
• The evaluation of elderly patients with diarrhea, rectal bleeding, abdominal pain, or weight loss should consider diagnoses such as inflammatory bowel disease, colorectal cancer, ischemic colitis, diverticulitis, and microscopic colitis 2, 3
• The American College of Gastroenterology recommends stool tests for Clostridium difficile in all new presentations of diarrhea, regardless of antibiotic use history 1, 3
• Selective stool tests for culture and parasites should be performed when appropriate 1

Imaging Studies

• The American College of Radiology recommends computed tomography with intravenous contrast for elderly patients with acute abdominal symptoms, especially when abdominal pain is a prominent symptom 1, 3, 4
• For patients who cannot undergo CT with intravenous contrast, ultrasonography, magnetic resonance imaging, or non-contrast CT is suggested 4

Diagnostic Procedures

• The American Society for Gastrointestinal Endoscopy recommends colonoscopy with histological confirmation as the cornerstone of diagnosis for inflammatory bowel disease and colorectal neoplasia 1, 3
• Colonoscopy should be performed in patients with intermediate to high suspicion of inflammatory bowel disease, microscopic colitis, or colorectal neoplasia 3
• Non-invasive markers of inflammation, such as fecal calprotectin, can aid in decision-making for colonoscopy 5

Management of Specific Conditions

• The American Gastroenterological Association recommends a comprehensive initial assessment of elderly patients to establish short- and long-term treatment goals for inflammatory bowel disease 5
• Patients with inflammatory bowel disease should be stratified according to the probability of a severe clinical course, including evaluation of perianal or penetrating phenotype, small intestine involvement, extensive colitis, anemia, hypoalbuminemia, elevated inflammatory markers, and weight loss 5
• Systemic corticosteroids are not indicated for maintenance therapy; when used for induction therapy, non-systemic corticosteroids (such as budesonide) are preferred 5
• The World Journal of Emergency Surgery recommends avoiding antibiotic therapy in immunocompetent elderly patients with uncomplicated diverticulitis of the left colon without organ failures related to sepsis 4
• Antibiotic therapy is recommended for patients with complicated diverticulitis with pericolic air bubbles or minimal pericolic fluid without abscess 4
• Broad-spectrum antibiotic therapy is suggested for elderly patients with acute left-sided diverticulitis and abscess without peritonitis 4
• The American Cancer Society recommends confirmation of colon and rectal cancer through colonoscopy 7
• For confirmed colon cancer, computed tomography of the chest and abdomen, and magnetic resonance imaging or ultrasonography of the abdomen plus chest radiography should be performed for staging 7
• For confirmed rectal cancer, magnetic resonance imaging of the pelvis and computed tomography of the chest and abdomen should be performed 7

Special Considerations in the Elderly

• The American Geriatrics Society recommends optimizing comorbidities to minimize risks associated with inflammatory bowel disease and its treatment 5
• A multidisciplinary approach to care, involving gastroenterologists, primary care providers, other medical subspecialists, mental health professionals, surgeons, nutritionists, and pharmacists, is essential for elderly patients with inflammatory bowel disease 5
• Family members and caregivers may be involved in formulating a treatment plan 5
• Adherence to vaccination schedules, including influenza, pneumococcal, and herpes zoster vaccines, should be facilitated in elderly patients with inflammatory bowel disease 5
• The decision to continue or discontinue colorectal cancer surveillance in elderly patients should consider age, comorbidity, overall life expectancy, likelihood of endoscopic resectability of the lesion, and candidacy for colon resection surgery 5