Evaluating and treating unintentional weight loss in the elderly

Area of Science:

• Geriatrics
• Internal Medicine
• Clinical Nutrition

Background:

• Unintentional weight loss in elderly individuals is a significant predictor of adverse health outcomes, including increased morbidity and mortality.
• Common etiologies include depression, malignancies (lung, gastrointestinal), cardiac disorders, and gastrointestinal diseases.
• Medications, polypharmacy, and psychotropic medication reduction can also contribute to unintended weight loss.

Purpose of the Study:

• To review the leading causes of unintentional weight loss in the elderly.
• To outline appropriate diagnostic work-up strategies.
• To discuss management principles including nutritional support and addressing underlying conditions.

Main Methods:

• Review of literature on causes, diagnosis, and management of unintentional weight loss in the elderly.
• Discussion of diagnostic tests such as blood work, fecal occult blood testing, and upper gastrointestinal studies.
• Emphasis on a comprehensive approach considering patient environment and ability to eat.

Main Results:

• Depression, cancer, cardiac, and gastrointestinal disorders are primary causes of unintentional weight loss in older adults.
• A specific cause remains unidentified in approximately 25% of cases.
• Diagnostic work-up should be guided by patient history and physical examination.

Conclusions:

• Effective management requires identifying and treating underlying causes, alongside providing nutritional support.
• Environmental factors, patient's interest in food, and symptom amelioration are key components of care.
• Currently, no appetite stimulants are FDA-approved for treating weight loss in the elderly.