Endocrine

, Volume 44, Issue 1, pp 119–124 | Cite as

Risk factors for ulceration and amputation in diabetic foot: study in a cohort of 496 patients

  • Arnaldo Moura Neto
  • Denise Engelbrecht Zantut-Wittmann
  • Tulio Diniz Fernandes
  • Marcia Nery
  • Maria Candida Ribeiro Parisi
Original Article

Abstract

Treatment strategies for foot at risk and diabetic foot are mainly preventive. Studies describing demographic data, clinical and impacting factors continue to be, however, scarce. Our objective was to determine the epidemiological presentation of diabetic foot and understand whether there were easily assessable variables capable of predicting the development of diabetic foot. This was a retrospective study of 496 patients with established foot at risk or diabetic foot, who were evaluated based on age, gender, type and duration of diabetes, foot at risk classification, and the presence of deformities, ulceration, and amputation. The presence of deformities, ulceration, and amputation was recorded in 45.9, 25.3, and 12.9 % of patients, respectively. As for diabetic foot classification, the great majority of our cohort had diabetic neuropathy (92.9 %). Approximately 30 % had neuro-ischemic disease and only 7.1 % had ischemic disease alone. Sixty-two percent of patients presented neuropathy with no signs of arteriopathy. Foot classification was as a significant predictor for the presence of ulcer (p = 0.009; OR = 3.2; 95 % CI = 1.18–7.3). Only male gender was a significant predictor for ulceration (p < 0.001). Predictors of amputation were male gender (p < 0.001; OR = 3.44 95 % CI = 1.81–6.56) and neuro-ischemic diabetic foot (p < 0.049; OR = 4.6; 95 % CI = 1.01–20.9). The predictors for diabetic foot were male gender and the presence of neuropathy. The combination of neuropathy and peripheral vascular disease adds significantly to the risk for amputation among patients with the diabetic foot syndrome. Men, presenting combined risk factors, should be a group receiving special attention and in the foot clinic, due to their potentially worse evolution.

Keywords

Diabetic foot Ischemic disease Neuropathy Ulceration Amputation 

Abbreviations

ABI

Ankle/brachial index

IO

Ischemic only group

NI

Neuro-ischemic group

NP

Neuropathy only group

Notes

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Arnaldo Moura Neto
    • 1
  • Denise Engelbrecht Zantut-Wittmann
    • 1
  • Tulio Diniz Fernandes
    • 2
  • Marcia Nery
    • 3
  • Maria Candida Ribeiro Parisi
    • 1
    • 3
    • 4
  1. 1.Division of Endocrinology, Department of Internal Medicine, Faculty of Medical SciencesUniversity of CampinasCampinasBrazil
  2. 2.Department of Orthopedics, Medical Sciences FacultyUniversity of Sao PauloSão PauloBrazil
  3. 3.Department of Endocrinology, Medical Sciences FacultyUniversity of Sao PauloSão PauloBrazil
  4. 4.Disciplina de Endocrinologia, Departamento de Clinica Medica, Faculdade de Ciências MédicasUniversidade Estadual de CampinasCampinasBrazil

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