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Published byHaley Gutierrez Modified over 10 years ago
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James Holding
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Green for Danger - Rank Films 1946
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2009 Anaesthesia Intravenous induction Short acting opiate - e.g. fentanyl anaesthetic - e.g. propofol Set up of anaesthetic maintenance - e.g. sevoflurane vapour in oxygen and air Specific muscle paralysis may be needed Definitive analgesia Anti-emetic Intravenous induction Short acting opiate - e.g. fentanyl anaesthetic - e.g. propofol Set up of anaesthetic maintenance - e.g. sevoflurane vapour in oxygen and air Specific muscle paralysis may be needed Definitive analgesia Anti-emetic
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Propofol
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Maintenance
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Concepts of partial pressure and MAC Isoflurane (ISO) – MAC = 1.1 Desflurane (DES) – MAC = 6 The most insoluble – so the fastest to equilibrate – but a respiratory irritant, so unsuitable for gaseous induction. Sevoflurane (SEVO) – MAC = 2.2 Used for gaseous induction. Nitrous Oxide – a gas. MAC = 105 Propofol and Remifentanil Concepts of partial pressure and MAC Isoflurane (ISO) – MAC = 1.1 Desflurane (DES) – MAC = 6 The most insoluble – so the fastest to equilibrate – but a respiratory irritant, so unsuitable for gaseous induction. Sevoflurane (SEVO) – MAC = 2.2 Used for gaseous induction. Nitrous Oxide – a gas. MAC = 105 Propofol and Remifentanil
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MAC = minimum alveolar concentration
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Muscle Paralysis
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Neuromuscular blockers Depolarising Suxamethonium Non-depolarising Atracurium Vecuronium Rocuronium Depolarising Suxamethonium Non-depolarising Atracurium Vecuronium Rocuronium
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Nicotinic ACh Receptor
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Reversal of Paralysis Neostigmine Blocks cholinesterase Stimulates nicotinic and muscarinic Given with an anticholinergic Sugammadex Neostigmine Blocks cholinesterase Stimulates nicotinic and muscarinic Given with an anticholinergic Sugammadex
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Uppers Anticholinergics Atropine Glycopyrulate Symatheto-mimetics agonists Phenylepherine Metaraminol Ephidrine A mixed and adreno agonist Anticholinergics Atropine Glycopyrulate Symatheto-mimetics agonists Phenylepherine Metaraminol Ephidrine A mixed and adreno agonist
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Downers More anaesthetic or opiate Short acting -blockers (labetalol, esmolol) GTN Clonidine - 2 agonist clonidine More anaesthetic or opiate Short acting -blockers (labetalol, esmolol) GTN Clonidine - 2 agonist clonidine
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Opiates Morphine Fentanyl Alfentanil Remifentanil Morphine Fentanyl Alfentanil Remifentanil
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Antiemetics
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Cyclizine – an anti-histamine (SE – tachycardia and other anti-cholinergic effects) Granisetron and ondansatron – 5-HT 3 receptor antagonists (SE – constipation) Prochlorperazine (stematil) – a dopamine and mACh receptor antagonist (SE – extrapyramidal) Dexamethasone – a glucocorticoid (SE – deranged glucose control) Cyclizine – an anti-histamine (SE – tachycardia and other anti-cholinergic effects) Granisetron and ondansatron – 5-HT 3 receptor antagonists (SE – constipation) Prochlorperazine (stematil) – a dopamine and mACh receptor antagonist (SE – extrapyramidal) Dexamethasone – a glucocorticoid (SE – deranged glucose control)
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