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Published on: February 21, 2015
Endocrine Abnormalities and Growth Characterization in Colombian Pediatric Patients with 22q11 Deletion Syndrome
Juan Lasprilla-Tovar1, Nora Alejandra Zuluaga2, Carolina Forero2
1HOMI Fundacion Hospital Pediatrico la Misericordia, Pediatric Endocrinologist, Colombia, South America
Insights
Children with 22q11 deletion syndrome frequently experience endocrine issues like hypoparathyroidism and growth problems. Early, multidisciplinary follow-up is crucial for managing these conditions and preventing complications.
Area of Science:
- Pediatric Endocrinology
- Genetics
- Clinical Medicine
Background:
- 22q11 deletion syndrome is associated with various endocrine abnormalities.
- Common manifestations include growth retardation, hypoparathyroidism, and thyroid dysfunction.
Purpose of the Study:
- To characterize endocrine abnormalities in a Colombian cohort of children with 22q11 deletion syndrome.
- To assess the prevalence and types of endocrine disorders in this population.
Main Methods:
- Retrospective study of a cohort of children diagnosed with 22q11 deletion syndrome.
- Data collected from 2011 to 2017 in Medellín, Colombia.
- Analysis of endocrine manifestations and growth patterns.
Main Results:
- Thirty-seven patients were included; 37.8% exhibited endocrinopathies.
- Hypoparathyroidism (21.6%) was most frequent, followed by hypothyroidism (13.5%).
- Short stature was primarily linked to nutritional factors; late-onset hypocalcemia occurred in some patients.
Conclusions:
- A significant proportion of patients with 22q11 deletion syndrome present endocrine abnormalities.
- Multidisciplinary follow-up guided by clinical guidelines is essential for preventing severe complications like seizures.
- Regular growth monitoring using syndrome-specific charts is recommended.
Objective:
Several endocrine manifestations have been described in patients with 22q11 deletion syndrome, including growth retardation, hypoparathyroidism, and thyroid disorders. This study aimed to characterize these abnormalities in a Colombian retrospective cohort of children with this condition.
Methods:
A retrospective study comprising a cohort of children with 22q11 deletion syndrome in Medellín, Colombia followed up between 2011 and 2017 was conducted.
Results:
Thirty-seven patients with a confirmed diagnosis of 22q11 deletion syndrome were included. 37.8% had some endocrinopathy, the most frequent being hypoparathyroidism (21.6%), followed by hypothyroidism (13.5%), hyperthyroidism (2.7%) and growth hormone deficiency (2.7%). There was wide heterogeneity in the clinical presentation, with late onset of severe hypocalcemia associated with seizure or precipitated in postoperative cardiac surgery, which highlights the importance of continuous follow-up as indicated by the guidelines. Short stature was mainly related to nutritional factors. Growth monitoring is required with the use of syndrome-specific charts and careful monitoring of the growth rate.
Conclusion:
As previously reported, a significant proportion of patients with endocrine abnormalities were found in this cohort. This highlights that it is essential to carry out an adequate multidisciplinary follow-up, based on the specific clinical guidelines, in order to avoid serious complications such as convulsions due to hypocalcemia. It is important to track size with curves specific to the syndrome and analyze the growth rate.
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