Monday 17 September 2012

EMQ practice - Haemoptysis

Haemoptysis

  • 65 year old smoker, shortness of breath, gallop rhythm, production of pink frothy sputum
    • Pulmonary oedema
      • Increased JVP, gallop rhythm, pink frothy sputum
      • Could be underlying myocardial infarction
  • 24 year old male, cough and intermittent haemoptysis, few weeks later with haematuria, biopsy confirms crescentic glomerulonephritis, renal biopsy shows linear pattern deposition on immunofluorescence
    • Goodpasture's syndrome
      • Pulmonary renal syndrome (Wegener's granulomatosis, microscopic polyangiitis, and Goodpasture's disease (GD))
      • cANCA for Wegener's
      • Anti-GBM for GD (classic linear staining)
        • Binding to lung alveolar membrane and kidney glomerular membrane (type II hypersensitivity)
        • HLA-DR2 association
        • In smokers, and should avoid smoking
        • Treatment: plasmapheresis and corticosteroids
  • 34 year old woman, complaining of nasal obstruction develops cough, haemoptysis, and pleuritic chest pain, chest radiograph shows multiple nodular masses
    • Wegener's granulomatosis
      • Small artery vasculitis
      • Lesions in upper respiratory tract, lung and kidneys
      • Eye signs up to 50% (scleritis, uveitis, retinitis)
      • Vasculitis and granuloma deposition can affect any organ so less common associated symptoms and signs are legion
      • Treatment: high-dose corticosteroids with cyclophosphamide
  • 22 year old male, fever, nightsweats, weight loss and cough productive of cupfuls of blood. Ziehl-Neelsen stain positive for acid-fast bacilli
    • Tuberculosis (TB)
      • Miliary TB describes widespread TB through haematological dissemination
  • 35 year old businessman, returns from trip abroad, collapses at airport with haemoptysis and pleuritic chest pain, sinus tachycardia, ECG shows right axis deviation
    • Pulmonary embolus
      • Ventilation perfusion scanning and pulmonary angiography performed using spiral computed tomography
      • PE also increased by previous thromboembolic events, oral contraceptive pill and surgery (especially pelvic surgery immobility and associated thrombophilias)

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