Allergy & asthma

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Allergies arise when immune system reacts to foreign body. The immune system produces substances known as antibodies that protect us from unwanted invaders which could make us sick or cause an infection. When one comes into contact with the allergen, the response of the immune system can inflame skin, sinuses, airways or digestive system. The severity of allergies varies from one person to another and can range from trivial irritation to a potentially life threatening emergency. While most allergies cannot be cured, a number of treatments can assist get rid of allergy symptoms

Transcript of Allergy & asthma

  • 1. Allergy & Asthma a slide show Dr Asha Pherwani Consultant PD Hinduja National Hospital

2. Allergy a multi-headed monster 3. Up to the 19th century Few cases of allergic cold Increasing rapidly More in the westernized countries 4. Allergic diseases Disturbing to the patient Occassionally fatal Alarming facts * observation of new allergies * nuts, soya, latex, gelatin and other What is allergy? 5. When the body encountes an allergen An allergen is a protein different from the body 6. The body reacts Favourable result ---immunity 7. If the body over-reacts----harmful allergy 8. Serum IgE levels are high in allergies IgE attaches itself to mast cells 9. Atopic dermatitis 10. The one airway theory 11. Tell tale signs of allergy 12. Rhinitis Very common AR in children May predicit asthma 13. Allergic cold 14. Eye lid allergy 15. Drug allergyDrug allerg: Isonex (SJ) / methotrexate 16. Insulin allergy 17. Pressure urticaria 18. Contact dermatitis 19. Nickel allergy Nicke / copper allergy 20. Insect allergy 21. What does this slide project ? House dust mite 22. Pollen allergy 23. pollens Rage weed Chrysanthemum POLLENS 24. Food Reactions A diverse spectrum 25. Food reactions Immunological IgE Non-IgE T cells, macrophages Non-immunological Drugs dose dependent Enzyme deficiencies Food poisoning- Toxic 26. Prevalence of food allergy IgE mediated allergy 1-2.5% of adults 6-8% of children 27. Systems not only restricted to GIT Gastrointestinal Respiratory Skin Cardiovascular General-Anaphylaxis 28. General Itching, tingling, swelling lips, mouth Tongue & Throat swelling Angio-oedema (swelling, puffiness) Nausea Vomiting Diarrhoea Abdominal pain, cramps Colic , reflux Rrespiratory Throat tightness Wheezing, asthma Shortness of breath Repetitive coughing Cyanosis- turning blue Nasal congestion Runny nose Cough 29. Skin reactions Pruritus itching Flushing Urticaria rash Angio-oedema- tissue swelling Eczema/dermatitis Itchy eyes and ears Hypotension Shock Syncope- fainting Arrhythmia Chest pain 30. Most common allergenic foods Milk Wheat Egg Soy Peanut Tree nuts Fish & shellfish Any foods can theoretically trigger allergies 31. Cross-reactions may occur Wheat and other grains Soy and other legumes Cows milk & horse, sheep, goats milk Different tree nuts Nuts and peanuts Pollen & some fruit Latex and avocado, kiwi, chestnut, banana Otal allergy syndrome 32. Anaphylaxis food induced Foods most commonly implicated Eggs Wheat Milk Peanuts Fish Shellfish Nuts Celery Seeds Legumes Guar gum Rice Many others 33. pets Pet allergy 34. Exercise induced Anaphylaxis Anaphylaxis occurring after exercise, when certain foods are eaten prior or after exercising Common culprits: Wheat,cereals, celery, fruit,vegetables, shellfish 35. Watch out for: may contain It only takes a minute grain to react Nuts/egg/ sea food life time allergies Cold. Ice Food addtives & preservatives Caffeined in foods, medication, tea, coffee Coca-Cola, nausea and tremors. Salicylates Induce urticaria, asthma and nasal polyps to develop Curry powder, dried herbs, vegetable and fruit skins, tea and almonds 36. Food Intolerances Enzyme deficiencies Food poisoning Intestinal fermentation Food aversions Pharmacological reactions- reactions to chemicals in foods or additives. Reactions are dose dependent and can be cumulative. 37. Do the right thing Dont just restrict your freedom of eating a wide variety of foods Do seek professional help to investigate the symptoms you have The cause may not always be what you think! Remember- it can take up to 36-48 hours for some reactions to develop even longer in some conditions 38. Hoarse voice - anaphylaxis 39. Epipen (Inj adrenaline) 40. FIRES IN THE GARBAGE 1. DECOMPOSING WASTE MATTER 2. MAN MADE FOR RECYCLABLE MATERIAL (30% OF GARBAGE IN CAIRO) environment 41. genes pregnancy smoking viral infections in infancy small baby 42. The skin Prick test 43. SPTs / patch tests 44. Skin prick tests 45. COLD URTICARIA Cold urticaria 2 cases 46. Deficiency of C1 estarse inhibiyor deficincy Patients Angioed Neck swelling Died of meningitis at 1ge 15-16 y Life span 40-45 y 47. 2 causes *Muslces *inflammation Asthma hyper-reactive air ways 48. Chronic wheeze 49. SPTs 50. IgE / AEC 51. Growth in asthma 52. No Inhalers Without spacers 53. Spacers 54. A wiff of air 55. Thank you