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De novo anorexia nervosa post-bariatric surgery
Romy Chu1, Jacob Desman2, Hannah Lynch2
1Virginia Commonwealth University School of Medicine, 1201 E Marshall St #4-100, Richmond, VA 23298, USA.
Obesity Research & Clinical Practice
|June 29, 2025
Summary
Metabolic and bariatric surgery typically reduces eating disorders. However, this case shows anorexia nervosa can develop after surgery, even without prior diagnosis, necessitating careful psychiatric screening and follow-up.
Area of Science:
- Surgery
- Psychiatry
- Gastroenterology
Background:
- Metabolic and bariatric surgery (MBS) is often associated with decreased rates of eating disorders (EDs) post-procedure.
- However, EDs can rarely develop de novo or recur after MBS, typically linked to suboptimal weight outcomes.
Observation:
- This case report details a 56-year-old woman with no prior ED diagnosis.
- She developed anorexia nervosa, restricting type, following MBS, which necessitated psychiatric hospitalization.
Findings:
- The patient's presentation of new-onset anorexia nervosa after MBS highlights a rare but serious potential complication.
- This contrasts with the general understanding of MBS improving ED prevalence.
Implications:
- Emphasizes the need for thorough pre-surgical psychiatric evaluation in all MBS candidates.
- Suggests enhanced post-operative monitoring for psychiatric complications, including EDs.
- Recommends tailored management strategies for patients developing EDs post-MBS.
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