Haller index
Haller Index
Haller Index (pronunciation: /ˈhælər ˈɪndɛks/), also known as the Pectus Excavatum Severity Index, is a medical measurement used to quantify the severity of Pectus Excavatum. The index is named after the Swiss anatomist and physician Albrecht von Haller, who first described the condition.
Etymology
The term "Haller Index" is derived from the name of Albrecht von Haller, a Swiss anatomist and physician who made significant contributions to the field of anatomy and physiology in the 18th century. The index was developed to provide a standardized measurement for the severity of Pectus Excavatum, a condition Haller extensively studied.
Definition
The Haller Index is calculated by dividing the transverse diameter (the widest point of the inside of the ribcage) by the anteroposterior diameter (the shortest distance between the vertebrae and sternum). A normal Haller Index is approximately 2.5. A Haller Index greater than 3.25 is generally considered indicative of Pectus Excavatum.
Related Terms
- Pectus Excavatum: A deformity of the chest characterized by a sunken appearance of the chest or sternum.
- Albrecht von Haller: A Swiss anatomist and physician who first described the condition.
- Transverse Diameter: The widest point of the inside of the ribcage.
- Anteroposterior Diameter: The shortest distance between the vertebrae and sternum.
See Also
External links
- Medical encyclopedia article on Haller index
- Wikipedia's article - Haller index
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