Osteoporosis : The Silent Thief Osteoporosis : The Silent Thief
Osteoporosis Lucy Cowdrey 4 th November 2009. What is it?
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Transcript of Osteoporosis Lucy Cowdrey 4 th November 2009. What is it?
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Osteoporosis
Lucy Cowdrey4th November 2009
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What is it?
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Diagnosis
• “Osteoporosis is a loss of bone density sufficient to cause an increased risk of fracture”
– GP Notebook
• Diagnosed when:• -2.5 SD or below on DEXA scan• Can be assumed in women over 75
years
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Why does it matter?
• 180,000 osteoporosis-related fractures / yr in England and Wales• 70,000 hip fractures• 25,000 vertebral fractures• 41,000 wrist fractures
• Osteoporotic fractures cost NHS £1.7 billion annually
• Personal cost• 50% after hip # unable to live
independently• 20% die within 6 months
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Who gets it?
• Strongest risk factors?• Age• Female sex• Family history
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Other risk factors
• Caucasian• Early menopause• Low BMI• Smoking & probably alcohol• Sedentary lifestyle• >3/12 corticosteroid use• ?Depo-provera
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Associated conditions
• Anorexia• Chronic liver disease• Chronic kidney disease• Coeliac disease• Hyperparathyroidism• IBD• Rheumatoid arthritis
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Should we test for it?
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When to test: (National Osteoporosis Guideline Group 2008)
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FRAX calculator
• Assesses 10 year risk of #
• www.shef.ac.uk/FRAX
• National Osteoporosis society also recommend testing if receiving steroids for >3/12
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General advice?
• Stop smoking• Adequate calcium intake• Exercise
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Should we prescribe calcium / vitamin D?• Dietary calcium is as effective as pharmacologically-
derived• Intake of 1000mg Ca / day leads to 24% reduction hip #• No evidence that Vit D required in active people <65
years• >65 – need intake of 10µg (400IU) / day
• Some uncertainty• Evidence for dose-dependent relationship• Always consider prescribing in housebound individuals
• NICE – supplementation should be considered in women who may be deficient
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Here comes the science…
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Specific dietary advice?
• 3-4 portions of the following = 1000mg calcium
• 200ml milk• 1 pot yoghurt• 30g hard cheese• 200g portion macaroni cheese• 60g sardines• 170g cheese & tomato pizza• 4 slices white bread• 1 bowl calcium-rich cereal with milk
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When should we use bisphosphonates?• NICE (Oct 2008)• Alendronate is first line• Use risedronate or etidronate if intolerant• 70+ women
• With independent risk factor• With indicator for low BMD• With confirmed osteoporosis
• 65-69 women• With independent risk factor AND confirmed osteoporosis
• Postmenopausal women <65• With independent risk factor AND indicator for low BMD
AND confirmed osteoporosis
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Independent clinical risk factors (NICE)
• Parental history of hip fracture• Alcohol intake of 4+ units / day• Rheumatoid arthritis
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Indicators of low BMD (NICE)
• BMI <22• Ankylosing spondylitis• Crohns disease• Prolonged immobility• Untreated menopause
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Other drugs in primary prevention• Main SE bisphosphonates is
oesophageal reactions• CI: achalasia, oesophageal stricture
• Strontium an alternative if intolerant• Raloxifene (SERM) not a treatment
option for primary prevention
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Secondary prevention
• NICE (2008)• Alendronate 1st line• Risedronate or etidronate if
intolerant• 2nd line – strontium or raloxifene• 3rd line - teripatide
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Summary
• Consider Ca / Vit D in housebound patients or if poor dietary intake
• Consider DEXA scan depending on 10yr risk
• Consider bisphosphonates if risk factors or indicators for low BMD
• Check if elderly patients have been discharged on bisphosphonates following #
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References!
• Primary Prevention Ostoporosis (TA160) NICE October 2008
• Secondary prevention (TA161) NICE October 2008
• National Osteoporosis Guideline Group 2008 – Guideline for diagnosis and management osteoporosis
• Management of Osteoporosis (71) SIGN 2003• Prevention of Nonvertebral Fractures With Oral
Vitamin D and Dose Dependency (Arch Int Med) Mar 2009
• GPnotebook!