hypotonia
Pronunciation: hahy-puh-TOH-nee-ah
Decreased muscle tone characterized by reduced resistance to passive movement and increased joint mobility.
Full Definition
Hypotonia, commonly referred to as 'floppy infant syndrome' when present in newborns, is characterized by decreased muscle tone resulting in reduced resistance to passive movement and increased joint mobility. In pediatric neurology documentation, hypotonia may be central (originating from brain or spinal cord pathology) or peripheral (from neuromuscular causes). The condition affects motor development and may impact feeding, breathing, and gross motor milestones. Proper documentation includes assessment of distribution, severity, and associated features.
Usage
Usage note: Distinguish from muscle weakness; hypotonia refers specifically to tone, not strength.
In Context
- "The infant presented with generalized hypotonia and feeding difficulties from birth." — Neonatal neurology consultation
- "Central hypotonia was suspected based on the pattern of weakness and associated developmental delays." — Neuromuscular evaluation