Related Experiment Video
Updated: Jan 7, 2026

Ileectomy-induced Bile Overaccumulation in Mouse Intestine
Published on: August 21, 2017
Symptomatic vitamin A deficiency in a paediatric patient with short bowel syndrome
Tatsuya Takahashi1, Itaru Hayakawa2, Tetsuya Ishimaru3
1Division of Neurology, National Center for Child Health and Development, Setagaya, Japan takahashi-ta@ncchd.go.jp.
Insights
Vitamin A deficiency can cause xerophthalmia in children with short bowel syndrome (SBS), even with parenteral nutrition. Prompt intramuscular vitamin A treatment effectively resolves these severe ocular symptoms.
Area of Science:
- Ophthalmology
- Pediatrics
- Gastroenterology
Background:
- Vitamin A deficiency, leading to xerophthalmia, is uncommon in developed nations.
- Malabsorption conditions, such as short bowel syndrome (SBS), can precipitate vitamin A deficiency.
- Short bowel syndrome (SBS) often requires long-term parenteral nutrition support.
Purpose of the Study:
- To report a case of symptomatic xerophthalmia in a pediatric patient with SBS.
- To highlight the potential for vitamin A deficiency despite parenteral nutrition.
- To emphasize the importance of regular ophthalmologic screening and prompt diagnosis.
Main Methods:
- Case presentation of an early-adolescent male with hypoganglionosis-related SBS.
- Clinical assessment including night blindness, conjunctival xerosis, and Bitot's spots.
- Biochemical evaluation of serum retinol levels and intramuscular vitamin A administration.
Main Results:
- The patient presented with severe vitamin A deficiency (serum retinol 4.2 µg/dL).
- Ocular manifestations, including night blindness and xerosis, were observed.
- Intramuscular high-dose vitamin A led to complete resolution of symptoms.
Conclusions:
- Pediatric patients with SBS are at risk for symptomatic xerophthalmia, irrespective of nutritional support.
- Regular ophthalmologic examinations are crucial for early detection of ocular abnormalities.
- Intramuscular vitamin A is an effective therapeutic intervention for vitamin A deficiency secondary to malabsorption.
Abstract:
Vitamin A deficiency-which leads to xerophthalmia-is rarely observed in developed countries. However, it can be triggered by malabsorption conditions such as short bowel syndrome (SBS). Herein, we present an early-adolescent boy with hypoganglionosis-related SBS receiving long-term supplemental parenteral nutrition who presented with night blindness, bilateral conjunctival xerosis and Bitot's spots. The patient's serum retinol level was 4.2 (normal: > 20) µg/dL. Thus, 100 000 IU of vitamin A was administered intramuscularly on days 1, 2 and again after 2 weeks. The ocular signs and night blindness resolved. Paediatric patients with SBS may develop symptomatic xerophthalmia despite routine supplemental or total parenteral nutrition. Therefore, regular ophthalmologic examinations are recommended. However, in the case of any ocular abnormality-such as night blindness and conjunctival xerosis-clinicians should immediately facilitate the measurement of serum retinol levels. Intramuscular high-dose vitamin A is an effective treatment if malabsorption prevents adequate enteral uptake.
Related Concept Videos
Vitamins
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...

