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Hypotonia in the Neonatal Intensive Care Unit
Jennifer C Keene1, Ulrike Mietzsch2, Niranjana Natarajan3
1Division of Pediatric Neurology, Department of Pediatrics, Primary Children's Hospital, University of Utah, 81 North Mario Capecchi Drive, Salt Lake City, UT 84113, USA.
Clinics in Perinatology
|May 11, 2025
Summary
Hypotonia in newborns is common in the NICU. Early diagnosis is crucial for identifying treatable causes and improving outcomes, with genetic testing playing a key role.
Area of Science:
- Neonatology
- Pediatric Neurology
- Medical Genetics
Background:
- Neonatal hypotonia is a frequent clinical finding in the neonatal intensive care unit (NICU).
- It can stem from systemic, central nervous system, or peripheral nervous system disorders.
- Diagnosing the cause of neonatal hypotonia is complex due to its diverse etiology.
Purpose of the Study:
- To outline the diagnostic approach for hypotonic newborns in the NICU.
- To emphasize the rapid identification of treatable conditions.
- To provide updated recommendations on the use of genetic testing in diagnosing neonatal hypotonia.
Main Methods:
- Review of clinical presentation and history.
- Systematic evaluation strategies for hypotonic neonates.
- Integration of genetic testing in the diagnostic workup.
Main Results:
- Clinical examination and history guide the differential diagnosis of hypotonia.
- Prompt diagnosis facilitates timely initiation of targeted therapies.
- Genetic testing offers valuable insights into the underlying cause of many hypotonic conditions.
Conclusions:
- A structured approach is essential for evaluating neonatal hypotonia.
- Early diagnosis significantly impacts management and prognosis.
- Genetic testing is increasingly vital for accurate and comprehensive diagnosis.
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