Low Rates of Revascularization and High In-Hospital Mortality in Patients With Ischemic Lower Limb Amputation: Morbidity and Mortality of Ischemic Amputation

Angiology. 2016 Oct;67(9):860-9. doi: 10.1177/0003319715626849. Epub 2016 Jan 13.

Abstract

Background: To assess the nationwide contemporary burden of cardiovascular risk factors, comorbidities, and in-hospital mortality in patients with lower limb amputation (LLA) due to peripheral arterial disease and critical limb ischemia (CLI) in Germany.

Methods: German nationwide data for 2005 and 2009 were analyzed regarding in-hospital rates of major and minor ischemic LLA, risk factors, comorbidities, surgical and endovascular revascularizations, and in-hospital mortality.

Results: In 2005, a total of 22 479 major (7.8%) and 28 262 minor (9.8%) LLAs were performed with a relative decrease of -21.8% in major LLA, yet with a relative increase of +2% in minor LLA rate in 2009. The overall revascularization rate before amputation was 46% in 2005 and 57% in 2009. In-hospital mortality for non-CLI, minor, and major amputees was 3.3%, 4.6%, and 19.8%, respectively (P < .001 for major vs minor LLA and non-CLI).

Conclusion: The total number of ischemic LLA and amputation-related in-hospital mortality remains high in Germany in the 21st century. The poor outcome of patients with CLI might in part be due to underuse of revascularizations prior to amputation.

Keywords: critical limb ischemia; ischemic lower limb amputation; mortality; peripheral artery disease.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Amputation, Surgical / adverse effects
  • Amputation, Surgical / mortality*
  • Comorbidity
  • Critical Illness
  • Cross-Sectional Studies
  • Endovascular Procedures / adverse effects
  • Endovascular Procedures / mortality*
  • Endovascular Procedures / statistics & numerical data
  • Female
  • Germany / epidemiology
  • Hospital Mortality*
  • Humans
  • Ischemia / diagnosis
  • Ischemia / mortality*
  • Ischemia / surgery*
  • Lower Extremity / blood supply*
  • Male
  • Middle Aged
  • Peripheral Arterial Disease / diagnosis
  • Peripheral Arterial Disease / mortality*
  • Peripheral Arterial Disease / surgery*
  • Prevalence
  • Risk Factors
  • Time Factors
  • Treatment Outcome
  • Vascular Surgical Procedures / adverse effects
  • Vascular Surgical Procedures / mortality*
  • Vascular Surgical Procedures / statistics & numerical data