Practical assessment of lymphoedema
As with any medical condition it is important to make informed decisions based on appropriate assessment. Below is a tool which may assist you to do this.
Sudden onset may suggest deep vein thrombosis, acute heart failure, cellulitis, etc.
Gradual onset may be seen in most types of chronic oedema.
Sudden worsening of a pre-existing oedema may raise the suspicion of DVT, heart failure, recurrence of malignancy in patients with known cancer, cellulitis.
It is important to determine the extent of the oedema and which parts of the body are involved. In secondary lymphoedema the swelling should be confined to areas of known lymphatic damage. If more extensive oedema is present, other aetiologies such as heart failure, liver disease, renal disease, advanced malignancy, etc. should be considered.
Arm oedema is most commonly seen as a result of treatment for breast cancer, but may be post-thrombotic or rarely due to a primary lymphoedema. Superior vena caval obstruction should be considered in patients with recent onset bilateral arm oedema.
Head and neck/facial oedema may be seen in isolation as a result of rosacea, head and neck trauma, surgery and radiotherapy for head and neck cancer and recurrent head and neck cancer but may also be part of a more widespread oedema, e.g. in nephrotic syndrome.
Pain can be present in all of the different types of chronic oedema. The type of pain may sometimes help with differentiating the cause of the swelling but is not usually diagnostic.
People with lymphoedema often described a tightness / heaviness as the swelling develops. Severe pain is not usually a feature unless cellulitis or another acute problem develops.
In venous oedema, patients often describe an aching of the legs as the day goes on. This is typically relieved by elevation and compression garments.
Neuropathic pain may occur in a number of situations e.g. carpal tunnel syndrome with arm swelling, oedema in advanced cancer and in diabetic patients with chronic oedema of the legs.
Lipoedematous legs are often tender and painful.
Comorbidities / predisposing factors e.g. chronic long term conditions, obesity, etc. should be considered.
Temporal variation ?
Many patients with chronic oedema of the legs have diurnal variation of the oedema being worse as the day goes on and reducing overnight. This reduction may be typically minimal in patients with chronic lymphoedema. In some women there may be a cyclical pattern of oedema. Head & neck swelling tends to be worse in the morning and improves as the day goes on.
Family history ?
Taking a family history is useful in considering patients with possible inherited primary lymphoedema.
Drug history ?
Many drugs may cause peripheral oedema or exacerbate existing chronic oedema. The most common ones to consider are: calcium channel antagonists; corticosteroids; nonsteroidal anti-inflammatories (NSAIDs); alpha-blockers and sex hormones; etc. (For a more detailed description of drugs which can cause oedema, see Keeley 2008).
Local examination should include:
Sites of oedema ?
Skin changes: Features of venous disease ? Lymphatic disease ? Other skin conditions ?
General examination should seek evidence of a more generalised cause of oedema, e.g. heart failure, liver disease, renal disease.
Weight/body mass index ?
Consider multiple aetiology.
The cause(s) of chronic oedema can usually be identified on the basis of the history and an examination. As appropriate, investigations may be necessary.
An understanding of the underlying aetiology is important in determining the best treatment.
Many lymphoedema clinics treat patients with chronic oedema of various aetiologies rather than solely “pure” lymphoedema.
Keeley V. Drugs that may exacerbate and those used to treat lymphoedema. J. Lymphoedema 2008; 3(1): 57-65.
Dr Vaughan Keeley
Consultant in Palliative Medicine / Lymphoedema
Derby Teaching Hospitals NHS Foundation Trust
Produced March 2010
Revised October 2015