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Noonan syndrome: Clinical and molecular profile with review of literature
- Source :
- Saudi Journal for Health Sciences, Vol 13, Iss 1, Pp 28-34 (2024)
- Publication Year :
- 2024
- Publisher :
- Wolters Kluwer Medknow Publications, 2024.
-
Abstract
- Background: Noonan syndrome is a rare genetic disorder, characterized by dysmorphic facies, short stature, congenital heart diseases, and delay in development of variable degree. Aims: The aim of this study was to highlight the clinical spectrum, molecular profile, and outcome of Noonan syndrome patients from India. Settings and Design: A retrospective observational study was carried out between 2017 and 2020 in our tertiary care teaching institute. Materials and Methods: The retrospective data of consecutive patients were collected including clinical profile, investigations, and molecular analysis. Results: There were seven pediatric patients with Noonan syndrome. Characteristic facies, broad nose, low-set ears, short stature, and congenital cardiac anomalies (pulmonary stenosis) were present in all 7/7 (100%) patients. Short neck was present in 6 (85.71%), depressed nasal bridge in 5 (71.43%), development was grossly delayed in 5 (71.43%), and chest wall deformities in 4 (57.14%) patients. Cryptorchidism was present in 5 out of 6 (83.33%) male patients. Mutation in protein-tyrosine phosphatase nonreceptor type 11 gene was detected in all 4 out of 7 (57.14%) patients in whom genetic study was performed. Conclusions: A high index of suspicion for Noonan syndrome should be kept in mind in a patient presenting with facial dysmorphism, short stature, and congenital heart diseases with genitourinary abnormalities including cryptorchidism. A proper health education and counseling to the parents about the problem and alternative methods for having a healthy baby should be emphasized. Molecular confirmation is essential for prenatal diagnosis.
Details
- Language :
- English
- ISSN :
- 22781900 and 22780521
- Volume :
- 13
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Saudi Journal for Health Sciences
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.362697c6002a4b9aa999d76999fd63bc
- Document Type :
- article
- Full Text :
- https://doi.org/10.4103/sjhs.sjhs_140_23