Multidisciplinary treatment of diabetic foot ulcers in Canadian Aboriginal and non-Aboriginal people

Foot Ankle Surg. 2008;14(2):74-81. doi: 10.1016/j.fas.2007.10.006. Epub 2007 Dec 26.

Abstract

Background: Diabetic foot ulcers are a major cause of morbidity and mortality. This study evaluated the clinical outcomes in Canadian non-Aboriginal and Aboriginal diabetic patients with foot ulcers managed at a multidisciplinary, tertiary care diabetic foot clinic.

Methods: A retrospective review of medical records was done for 325 patients receiving care during a 2-year period. All patients were followed at least 1 year after the initial visit.

Results: There were 224 (69%) non-Aboriginal and 101 (31%) Aboriginal patients with 697 foot ulcers. At the initial office visit, 204 (63%) patients had lesions in Wagner grades 2-4. At the most recent evaluation (average, 79+/-73 weeks after initial clinic visit), 190 (58%) patients were rated as having a good outcome (either healed or healing), but a poor outcome (static, progression, amputation, or death) was noted in 135 (42%) patients. At the most recent evaluation, the majority of the 697 ulcers that were noted at the initial or subsequent clinic visits were healed. Aboriginal patients had a shorter average time from initial clinic visit to major lower extremity amputation (Aboriginal, 50+/-64 weeks; non-Aboriginal, 62+/-56 weeks; P<0.01). Residence in a rural or reserve community also correlated with shorter average time from initial clinic visit to major lower extremity amputation (rural or reserve, 45+/-56 weeks; urban, 66+/-61 weeks; P<0.002). When controlled for non-urban residence, Aboriginal ethnicity was not associated with poorer clinical outcome. Earlier major lower extremity amputation was significantly associated with non-urban residence, Aboriginal ethnicity, and arterial insufficiency. Poor clinical outcome was significantly associated with being referred with a lesion present, age greater than 60 years, prior lower extremity amputation or revascularization, arterial insufficiency, more than one lesion on initial presentation, longer duration of type 2 diabetes, and a higher initial Wagner grade for the most advanced lesion.

Conclusions: A multidisciplinary diabetic foot clinic may be successful in treating diabetic foot ulcers in Aboriginal and non-Aboriginal people. However, the frequency of poor outcome is high, consistent with the high prevalence of associated significant risk factors in this population.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Amputation / statistics & numerical data
  • Diabetic Foot / classification
  • Diabetic Foot / ethnology*
  • Diabetic Foot / mortality
  • Diabetic Foot / therapy*
  • European Continental Ancestry Group
  • Female
  • Humans
  • Indians, North American
  • Male
  • Manitoba
  • Middle Aged
  • Patient Care Team
  • Retrospective Studies
  • Treatment Outcome
  • Wound Healing