Hypertonia

From Wikipedia, the free encyclopedia

Hypertonia Classification and external resources
ICD-10	P94.1
ICD-9	358, 779.89
DiseasesDB	20872
MeSH	D009122

Hypertonia is a condition marked by an abnormal increase in the tightness of muscle tone and a reduced ability of a muscle to stretch (i.e. an increased stiffness). It is generally accompanied by (increased) spasticity of the particular muscles.

Damage to upper motor neurons causes hypertonia, as well as spasticity (overactive reflexes) and rigidity (constant muscle contractions). A form of hypertonia is known as Paratonia which is associated with dementia

[edit] See also

• Hypotonia
• Paratonia
• Clasp-knife response
• Hypertension (in blood)

[edit] External links

• "The Clasp Knife Phenomenon" at mcg.edu

v • d • e Certain conditions originating in the perinatal period (P, 760-779) Maternal factors and complications Umbilical cord prolapse - Nuchal cord - Chorioamnionitis Length of gestation and fetal growth Small for gestational age - Large for gestational age - Premature birth - Postmature birth Birth trauma Cephalhematoma - Brachial plexus lesion (Erb's palsy, Klumpke paralysis) Respiratory Intrauterine hypoxia - Infant respiratory distress syndrome - Transient tachypnea of the newborn - Meconium aspiration syndrome - pleural disease (Pneumothorax, Pneumomediastinum) - Wilson-Mikity syndrome - Bronchopulmonary dysplasia Cardiovascular Pneumopericardium - Persistent fetal circulation Haemorrhagic and haematological/ hematologic disease Haemorrhagic disease of the newborn - Hemolytic disease of the newborn - Rh disease - Hydrops fetalis - Hyperbilirubinemia (Kernicterus, Neonatal jaundice) Digestive system Ileus - Necrotizing enterocolitis Integument and temperature regulation Erythema toxicum Other disorders Periventricular leukomalacia - Gray baby syndrome - muscle tone (Congenital hypertonia, Congenital hypotonia) - Congenital rubella syndrome