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A tale of stings and reactions Dr Jon Tuppen Sproughton
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Alfred Dürer, 1514: Eros, Venus and the bees "Eros stung by a bee, when he inhaled the pleasant fragrance of a rose, went crying to take refuge in the arms of Venus," Dear mother, I die, have mercy on me, a flying snake bit me painfully cheek " Anacreontic singing, 6th c. av. AD "
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What is this? Melittin – 26 amino acid peptide
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Is this an allergic response?
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Bee Venom: Composition, Health, Medicine: A Review Stefan Bogdanov http://www.bee-hexagon.net/files/file/fileE/Health/VenomBookReview.pdf
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Sting components all designed to break down normal permeability
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The recognition system- seek and destroy
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....then things get a bit complicated
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Anaphylaxis – what is it? Acute onset of an illness (minutes to several hours) with involvement of the skin, mucosal tissue, or both (e.g., generalized hives, pruritus or flushing, swollen lips/tongue/uvula) Respiratory compromise (e.g., dyspnoea, wheeze– bronchospasm, stridor, reduced PEF [peak expiratory flow], hypoxemia) Reduced BP (blood pressure) or associated symptoms of end-organ dysfunction (e.g., hypotonia [collapse], syncope, incontinence) Persistent gastrointestinal symptoms (e.g., crampy abdominal pain, vomiting) Sense of Impending doom
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Clinical features of systemic reactions to bee or wasp stings Bee (11)Wasp (43) Generalised pruritus624 Urticaria624 Angioedema526 Laryngeal oedema511 } Asthma420 } 72% Gastrointestinal615 Visual disturbances3 7 } Hypotension without LOC516 } 88% Loss of consciousness315 } Ewan 1984
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UK cases of fatal anaphylaxis
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Where are people most likely to get stung? n=278
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How to recognise anaphylaxis
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Anaphylaxis – what to do if it happens. Shout for Help!! Don’t take chances – phone 999 – remove sting If the person has medication – give it- –Antistamines –Steroids Use Adrenalin auto-injector sooner rather than later i-m in outer thigh –Repeat x 1 after 5mins if no improvement Get patient to hospital for observation
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How to give i-m Adrenalin
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Thank You
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