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Characterizing Vitamin B12 Deficiency in Neurology Outpatients: A Retrospective Observational Study
1Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Clinical Neuropharmacology
|May 14, 2024
Summary
Vitamin B12 deficiency presents with diverse symptoms, often nonspecific. Diagnosis requires considering multiple clinical factors, especially in neurology outpatients, to ensure timely intervention.
Area of Science:
- Neurology
- Clinical Medicine
- Nutritional Science
Background:
- Vitamin B12 deficiency (cobalamin deficiency) exhibits varied clinical presentations.
- These diverse symptoms can lead to diagnostic delays in neurological outpatient settings.
Purpose of the Study:
- To investigate the clinical manifestations and demographic features of vitamin B12 deficiency in neurology outpatients.
- To improve the timeliness and accuracy of vitamin B12 deficiency diagnosis and patient outcomes.
Main Methods:
- Retrospective analysis of 165 neurology outpatients diagnosed with vitamin B12 deficiency.
- Classification of deficiency severity: absolute (≤150 pg/mL) and borderline (150-300 pg/mL).
- Data collected between May 2020 and May 2021.
Main Results:
- Absolute vitamin B12 deficiency identified in 23.0% of patients.
- Commonly affected age group: 50-60 years; primary cause: vegetarianism; frequent symptom: headache.
- Younger patients (<20) showed more epileptiform symptoms; older patients (>70) exhibited more psychiatric symptoms.
- Vegetarianism, salivation, and nonmegaloblastic anemia were more pronounced in absolute deficiency; headaches were more common in borderline deficiency.
Conclusions:
- Clinical characteristics of vitamin B12 deficiency are complex and often nonspecific.
- A multifactorial approach is essential for accurate diagnosis.
- Early recognition and comprehensive evaluation can improve patient management.
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