All-cause mortality after diabetes-related amputation in Barbados: a prospective case-control study

Ian R Hambleton et al. Diabetes Care. 2009 Feb.

Abstract

Objective: To determine the mortality rate after diabetes-related lower-extremity amputation (LEA) in an African-descent Caribbean population.

Research design and methods: We conducted a prospective case-control study. We recruited case subjects (with diabetes and LEA) and age-matched control subjects (with diabetes and no LEA) between 1999 and 2001. We followed these groups for 5 years to assess mortality risk and causes.

Results: There were 205 amputations (123 minor and 82 major). The 1-year and 5-year survival rates were 69 and 44% among case subjects and 97 and 82% among control subjects (case-control difference, P < 0.001). The mortality rates (per 1,000 person-years) were 273.9 (95% CI 207.1-362.3) after a major amputation, 113.4 (85.2-150.9) after a minor amputation, and 36.4 (25.6-51.8) among control subjects. Sepsis and cardiac disease were the most common causes of death.

Conclusions: These mortality rates are the highest reported worldwide. Interventions to limit sepsis and complications from cardiac disease offer a huge potential for improving post-LEA survival in this vulnerable group.

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Comment in

All-cause mortality after diabetes-related amputation in Barbados: a prospective case-control study: response to Hambleton et Al.
Morbach S, Gröblinghoff U, Schulze H, Wulff S, Schönauer M, Rümenapf G, Lutale JK, Abbas ZG. Morbach S, et al. Diabetes Care. 2009 Aug;32(8):e100; author reply e101. doi: 10.2337/dc09-0736. Diabetes Care. 2009. PMID: 19638516 No abstract available.

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