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- W4252803009 abstract "Venous ulcers account for by far the majority (about 70%), with mixed arterial/venous (about 10%) and arterial (about 10%) most of the remainder. Pressure ulcers have become increasingly common because of the increase in elderly, frail, and relatively immobile patients. The other causes are relatively rare with the exception of neuropathic ulcers in patients with diabetes mellitus. Note that many leg ulcers may have a multifactorial aetiology, i.e. they may involve more than one of the pathologies listed in Figure 29.1. The first thing is to ask about the ulcer. You should consider: • Is the ulcer painful? ■ Venous ulcers are caused by venous stasis in the leg and are thus less painful when elevated and drained of blood. However, only about 30% of venous ulcers are painful. ■ Arterial (atherosclerotic) ulcers are caused by ischaemia to the leg and are thus more painful when elevated and drained of blood. Patients often say the ulcers are painful enough to wake them up at night and that they obtain relief by lowering their leg over the side of the bed. ■ Neuropathic ulcers are caused by loss of sensation (which predisposes to constant trauma) and are thus not painful. ■ Pressure ulcers are caused by, as the name suggests, prolonged pressure on the affected site. They tend to be exquisitely tender but not necessarily painful if no pressure is being applied. • How long has the ulcer been there? ■ Venous ulcers are less painful and can therefore present late. They often have a long and recurring history. ■ Arterial ulcers tend to present relatively early because of pain. They often occur secondary to trivial trauma. ■ Neuropathic ulcers are associated with a loss of sensation and thus often present late. ■ Pressure ulcers can develop surprisingly rapidly (e.g. days in immobile patients if they are not turned regularly during their admission, even hours in patients who suffer a long lie following a fall), but can have a more indolent course depending on how much pressure is put on for how long. Thus the time course is not especially helpful. ■ A long history should arouse suspicion of a Marjolin ulcer, which only occurs in long-standing ulcers." @default.
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- W4252803009 date "2015-10-08" @default.
- W4252803009 modified "2023-09-30" @default.
- W4252803009 title "Leg ulcer" @default.
- W4252803009 doi "https://doi.org/10.1093/oso/9780198716228.003.0035" @default.
- W4252803009 hasPublicationYear "2015" @default.
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