Notes in 3. Local and Regional Anaesthesia

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Published	02/10/2024	Local Anaesthesia is anaesthesia applied to a specific region of the body without inducing {{c1::total hypnosis}} and {{c1::loss of arousal}} but they…
Published	02/10/2024	Options for Local Anaesthesia {{c1::Lignocaine}} {{c1::Bupivacaine}} {{c1::Ropivacaine}}
Published	02/10/2024	Mechanism of Action of Local Anaesthestics {{c1::Blockage of Na+ channels to prevent axonal action potential from propogating further down the neurons…
Published	02/10/2024	Physiological Effects of Local Anaesthesia{{c1::Sympathectomy leads to: Local Venodilation causing venous pooling, therefore reduced venous return and…
Published	02/10/2024	Unlike GA, Local Anaesthesia has no effect on the respiratory system unless it is injected directly into a {{c1::vein}} instead of a tissue
Published	02/10/2024	{{c1::Ultrasound}} is used recently to do Local Anaesthesia which reduces likelihood of IV injection and nerve or vascular injury
Published	02/10/2024	Local Anaesthestic Toxicity is toxicity associated with the {{c1::rate of absorption of the LA agent from the tissues into the plasma in addition to t…
Published	02/10/2024	Symptoms of Local Anaesthetic Toxicity {{c1::Circumoral and lingual numbness and tingling}} {{c1::Light headedness}} {{c1::Tinnitus and visual disturb…
Published	02/10/2024	{{c1::Larger}} nerves are more difficult and take longer to get affected by local anaesthesia
Published	02/10/2024	Spinal anaesthesia involves {{c1::injection of a local anaesthetic agent into the CSF surrounding the cord and/or nerve roots in the subarachnoid spac…
Published	02/10/2024	Epidural anaesthesia involves {{c1::injection of a local anaesthetic agent into the epidural space which is surrounded by a thick fibrous investment}}
Published	02/10/2024	Inspiration is served by {{c1::higher}} nerve roots, while expiration is served by {{c1::lower}} nerve roots
Published	02/10/2024	In epidural and spinal blocks, {{c1::inspiration::inspiration/expiration}} will tend to be relatively spared compared to {{c1::expiration::inspiration…
Published	02/10/2024	Why can we provide local analgesia without paralysis under local anaesthesia?{{c1::Because motor fibres are relatively difficult to block while pain f…
Published	02/10/2024	Why do anaesthetists have more control over general rather than local anaesthesia? {{c1::GA affects the whole body but LA effects are limited to the a…
Published	02/10/2024	Why should there be caution with dosage when performing an epidural and spinal anaesthesia?During an epidural anaesthesia, the dose of the LA agent is…
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