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Anesthesia is a state of controlled, temporary loss of sensation or awareness that is induced for medical or veterinary purposes. It may include some or all of analgesia, paralysis, amnesia, and unconsciousness. An individual under the effects of anesthetic drugs is referred to as being anesthetized.
A local anesthetic (LA) is a medication that causes absence of pain sensation. In the context of surgery, a local anesthetic creates an absence of pain in a specific location of the body without a loss of consciousness, as opposed to a general anesthetic. When it is used on specific nerve pathways, paralysis also can be achieved.
Needle may refer to:
Spinal anaesthesia, also called spinal block, subarachnoid block, intradural block and intrathecal block, is a form of neuraxial regional anaesthesia involving the injection of a local anaesthetic or opioid into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long. It is a safe and effective form of anesthesia usually performed by anesthesiologists that can be used as an alternative to general anesthesia commonly in surgeries involving the lower extremities and surgeries below the umbilicus. The local anesthetic with or without an opioid injected into the cerebrospinal fluid provides locoregional anaesthesia: true analgesia, motor, sensory and autonomic (sympathic) blockade. Administering analgesics in the cerebrospinal fluid without a local anaesthetic produces locoregional analgesia: markedly reduced pain sensation, some autonomic blockade, but no sensory or motor block. Locoregional analgesia, due to mainly the absence of motor and sympathic block may be preferred over locoregional anaesthesia in some postoperative care settings. The tip of the spinal needle has a point or small bevel. Recently, pencil point needles have been made available.
Combined spinal and epidural anaesthesia (CSE) is a regional anaesthetic technique, which combines the benefits of both spinal anaesthesia and epidural anaesthesia and analgesia. The spinal component gives a rapid onset of a predictable block. The indwelling epidural catheter gives the ability to provide long lasting analgesia and to titrate the dose given to the desired effect.
A Tuohy (/tOO-ee/) needle is a hollow hypodermic needle, very slightly curved at the end, suitable for inserting epidural catheters.
Epidural administration is a method of medication administration in which a medicine is injected into the epidural space around the spinal cord. The epidural route is used by physicians and nurse anesthetists to administer local anesthetic agents, analgesics, diagnostic medicines such as radiocontrast agents, and other medicines such as glucocorticoids. Epidural administration involves the placement of a catheter into the epidural space, which may remain in place for the duration of the treatment. The technique of intentional epidural administration of medication was first described in 1921 by Spanish military surgeon Fidel Pagés. In the United States, over 50% of childbirths involve the use of epidural anesthesia.
Dogliotti's principle is a principle in epidural anaesthesia first described by Professor Achille Mario Dogliotti in 1933. It is a method for the identification of the epidural space, a potential space. As a needle is advanced through the ligamentum flavum, to the epidural space, with constant pressure applied to the piston of a syringe, loss of resistance occurs once the needle enters the epidural space due to the change in pressure. The identification of this space, allows subsequent administration of epidural anaesthesia, a technique used primarily for analgesia during childbirth.
Post-dural-puncture headache (PDPH) is a complication of puncture of the dura mater. The headache is severe and described as "searing and spreading like hot metal", involving the back and front of the head and spreading to the neck and shoulders, sometimes involving neck stiffness. It is exacerbated by movement and sitting or standing and is relieved to some degree by lying down. Nausea, vomiting, pain in arms and legs, hearing loss, tinnitus, vertigo, dizziness and paraesthesia of the scalp are also common.
An epidural blood patch (EBP) is a surgical procedure that uses autologous blood in order to close one or many holes in the dura mater of the spinal cord, usually as a result of a previous lumbar puncture or epidural. The procedure can be used to relieve orthostatic headaches, most commonly post dural puncture headache (PDPH). The procedure carries the typical risks of any epidural procedure. They are usually administered near the site of the cerebrospinal fluid leak, but in some cases the upper part of the spine is targeted. An epidural needle is inserted into the epidural space like a traditional epidural procedure. The blood modulates the pressure of the CSF and forms a clot, sealing the leak. EBPs were first described by American anesthesiologist Turan Ozdil and surgeon James B Gormley around 1960.
Following is a list of instruments used in the practice of anesthesia
In the United States, certified anesthesiologist assistants (CAAs) are clinicians that practice medicine under the direction of licensed anesthesiologists to implement anesthesia care plans for a patient undergoing surgery. CAAs are integral members of the anesthesia care team as described by the American Society of Anesthesiologists (ASA). All CAAs possess a baccalaureate degree, and complete an intensive didactic and clinical program at a postgraduate level. CAAs are trained in the delivery and maintenance of all types of anesthesia care as well as advanced patient monitoring techniques. The goal of CAA education is to guide the transformation of student applicants into competent clinicians.
The following outline is provided as an overview of and topical guide to anesthesia:
The American Board of Anesthesiology sets standards and exams for the accreditation of Board certified anesthesiologists coming to the end of their residency. It is one of the 24 medical specialty boards that constitutes the American Board of Medical Specialties.
The history of neuraxial anesthesia goes back to 1885.
Gábor Béla Rácz, is a Hungarian-American board-certified anesthesiologist and professor emeritus at Texas Tech University Health Science Center (TTUHSC) in Lubbock, Texas, where he is also Chairman Emeritus of the Department of Anesthesiology and Co-Director of Pain Services. He has worked in the field of chronic back pain and complex regional pain syndrome (CRPS).
Ban Tsui is a Canadian anesthesiologist known for medical innovation in the field of anesthesia. Examples include describing the Tsui Test and developing the StimuLong Sono-Tsui for ease of pediatric epidural placement. Recently along with his son, Jenkin Tsui, Dr. Tsui developed a catheter-over-needle kit allowing a continuous catheter placement to be performed with the ease of a single shot during peripheral nerve blocks.
No Pain Labor & Delivery – Global Health Initiative is a non-for-profit organization. Founded in 2006, the program focuses on correcting the unnecessarily high caesarean delivery rate and the poor utilization of neuraxial labor analgesia in China.
Obstetric anesthesia or obstetric anesthesiology, also known as ob-gyn anesthesia or ob-gyn anesthesiology, is a sub-specialty of anesthesiology that provides peripartum pain relief (analgesia) for labor and anesthesia for cesarean deliveries ('C-sections').
Caudal anaesthesia, is a form of neuraxial regional anaesthesia conducted by accessing the epidural space via the sacral hiatus. It is typically used in paediatrics to provide peri- and post-operative analgesia for surgeries below the umbilicus. In adults it is used for chronic low back pain management.
References
- ↑ "Obituary Jess B. Weiss, M.D., 1917-2007". Anesthesia History Association. Retrieved 11 July 2019.
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