FAMUS lung pathologyfamus.org.uk/wp-content/uploads/2017/07/FAMUS-Lung-pathology.pdf · Lung...
Transcript of FAMUS lung pathologyfamus.org.uk/wp-content/uploads/2017/07/FAMUS-Lung-pathology.pdf · Lung...
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Lung Pathology
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Aims
• Review of basic lung ultrasound concepts
• Highlight common diagnoses within the BLUE protocol
• Examples of pathology
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A lines
• Transverse
• Normal reverberation artefact
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B-lines
• Radial
• Imply high lung water
• Obliterate A-lines
• 1-2 (posteriorly) are of no significance
• Absent in pneumothorax
• Present in ARDS, LVF, pneumonia
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Lung sliding
• Means apposition of parietal and visceral pleura
• Absent in pneumothorax
• Also inflammatory adherences, very low tidal volume,
apnoea, one lung ventilation
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Lung pulse – T lines
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Lung point
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Pneumothorax
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Alveolar-Interstitial syndrome
• Predominantly Alveolar (<3mm)
– High extravascular lung water/ARDS
– Cardiogenic pulmonary oedema
• Predominantly Interstitial (>7mm)
– Inflammatory pneumonia
– Pulmonary fibrosis
– Lymphangitis
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Cardiogenic pulmonary oedema vs ARDS
• Symmetry
• Homogeneity
• Sub-pleural consolidation
• Resolution on diuresis
• (echo findings)
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Consolidation
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Consolidation
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Collapse (with effusion)
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More pleural effusions
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And so back to the BLUE protocol…
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Summary
• Lung ultrasound is sensitive and specific for lung
pathology
• The BLUE protocol provides a framework to reliably pick
up common pathology