Spinal anaesthesia
Spinal Anaesthesia
Spinal anaesthesia (pronunciation: /ˈspaɪnəl ænɪsˈθiːziə/), also known as spinal block, is a type of anaesthesia that is used to block the feeling of pain from an area of the body. The procedure involves injecting a local anaesthetic into the subarachnoid space, which is part of the spinal canal, to numb the lower half of the body.
Etymology
The term "spinal anaesthesia" is derived from the Latin word "spina" meaning "thorn" or "backbone", and the Greek word "anaisthēsia" meaning "insensibility".
Procedure
The procedure is performed by a anesthesiologist who uses a thin needle to inject the anaesthetic into the subarachnoid space in the lower back. The anaesthetic works by blocking the nerve signals from the lower half of the body to the brain, preventing the sensation of pain.
Uses
Spinal anaesthesia is commonly used for surgeries of the lower abdomen, pelvis, rectum, buttocks, and legs. It is also used for pain management during labor and delivery.
Related Terms
- Epidural anaesthesia: A type of anaesthesia that is similar to spinal anaesthesia, but the anaesthetic is injected into the epidural space instead of the subarachnoid space.
- Local anaesthesia: A type of anaesthesia that numbs a small, specific area of the body.
- General anaesthesia: A type of anaesthesia that causes a loss of consciousness.
Risks and Complications
Like all medical procedures, spinal anaesthesia carries some risks and potential complications. These may include headaches, low blood pressure, and in rare cases, damage to the nerves.
External links
- Medical encyclopedia article on Spinal anaesthesia
- Wikipedia's article - Spinal anaesthesia
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