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Dvtpe Notes

Medicine Notes > General and Vascular Surgery Notes

This is an extract of our Dvtpe document, which we sell as part of our General and Vascular Surgery Notes collection written by the top tier of University Of Leicester students.

The following is a more accessble plain text extract of the PDF sample above, taken from our General and Vascular Surgery Notes. Due to the challenges of extracting text from PDFs, it will have odd formatting:

DVT Occurs in 25-50% of surgical patients

Risk factorsAge (increases with age) Pregnancy Synthetic oestrogen (HRT/COCP) Surgery Previous DVT Malignancy Obesity Immobility Thrombophilia

Wells Score (Test of clinical probability of DVT) Active Cancer Paralysis/paresis/recent immobilisation Major surgery/bedridden for >3 days in last 4 weeks Local tenderness along distribution of venous system Entire leg swollen Calf swelling >3cm compared with other leg Pitting oedema Collateral superficial veins (nonvaricose) Alternative diagnosis as or more likely than DVT


1 1 1 1 1 1 1 1

Hypercoagulabili ty

Virchow's Triad


Clinical features-

Calf is o Swollen o Tender o Warm o Red May be mild fever and pitting oedema

Endothelial damage


D-Dimers o Sensitive but non-specific o Raised in pregnancy, infn, malignancy and post-op o -ve result with low Wells Score excludes DVT Duplex USS - with compression - vein doesn't collapse under pressure

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