Baricity

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Baricity

Baricity (pronunciation: /bəˈrɪsɪti/) is a term used in anesthesiology to describe the density of a substance, particularly in relation to the density of spinal fluid. The term is derived from the Greek word "baros", meaning weight.

Definition

Baricity refers to the density of a spinal anesthetic in relation to the density of the cerebrospinal fluid. It is a crucial factor in determining the spread of the anesthetic in the subarachnoid space.

Types of Baricity

There are three types of baricity:

  • Hypobaric: The anesthetic solution is less dense than the spinal fluid.
  • Isobaric: The anesthetic solution has the same density as the spinal fluid.
  • Hyperbaric: The anesthetic solution is denser than the spinal fluid.

The type of baricity chosen can influence the distribution of the anesthetic and thus the level of anesthesia achieved.

Factors Influencing Baricity

Several factors can influence the baricity of a spinal anesthetic, including the temperature of the solution, the concentration of the anesthetic, and the addition of glucose or other substances.

Clinical Significance

Understanding baricity is crucial in anesthesia as it helps predict the spread of the anesthetic in the subarachnoid space. This can influence the level of anesthesia and the potential for side effects.

Related Terms

External links

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