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The patient presenting with chronic limb-threatening ischaemia. Does diabetes influence presentation, limb outcomes
Robert Fitridge1,2, Guilherme Pena1,2, Joseph L Mills3
1Discipline of Surgery, The University of Adelaide, Adelaide, Australia.
Insights
Diabetic patients with peripheral arterial disease (PAD) and chronic limb-threatening ischemia (CLTI) face higher risks of amputation and delayed healing. Integrated, multidisciplinary care is crucial for managing these complex cases.
Area of Science:
- Vascular Surgery
- Diabetology
- Wound Healing
Background:
- Peripheral arterial disease (PAD) significantly increases major amputation risk and impairs wound healing in diabetic patients with foot ulcers.
- Chronic limb-threatening ischemia (CLTI) is defined by PAD severity, leading to delayed healing and increased amputation risk.
- Diabetic patients with CLTI often present with more severe tissue loss, infection, and less favorable anatomy for revascularization.
Purpose of the Study:
- To outline the complexities of managing diabetic patients with CLTI.
- To emphasize the importance of evidence-based guidelines for CLTI assessment and management.
- To highlight the integrated, multidisciplinary approach required for optimal outcomes in this patient population.
Main Methods:
- Adherence to evidence-based guidelines from major international vascular societies for CLTI assessment and management.
- Comprehensive patient risk stratification.
- Detailed assessment of foot pathology severity.
- Structured anatomical evaluation of arterial disease.
Main Results:
- Diabetic patients with CLTI exhibit a higher propensity for tissue loss and infection.
- Comorbidities common in diabetes (e.g., ESRD, CAD) complicate the clinical picture and cannot be easily isolated.
- While diabetes may not be an independent risk factor for limb loss, its presence exacerbates morbidity and mortality in CLTI.
Conclusions:
- Management of CLTI in diabetic patients is complex and necessitates a multidisciplinary team approach.
- An integrated strategy incorporating risk assessment, foot pathology evaluation, and anatomical assessment is recommended.
- Following global vascular guidelines for CLTI is essential for optimizing outcomes in diabetic patients with limb-threatening ischemia.
Abstract:
Peripheral arterial disease (PAD) confers an elevated risk of major amputation and delayed wound healing in diabetic patients with foot ulcers. The major international vascular societies recently developed evidence-based guidelines for the assessment and management of patients with chronic limb-threatening ischaemia (CLTI). CLTI represents the cohort of diabetic and non-diabetic patients who have PAD which is of sufficient severity to delay wound healing and increase amputation risk. Diabetic patients with CLTI are more likely to present with tissue loss, infection and have less favourable anatomy for revascularization than those without diabetes. Although diabetes is not consistently reported as a strong independent risk factor for limb loss, major morbidity and mortality in CLTI patients, it is impossible in clinical practice to isolate diabetes from comorbidities, such as end-stage renal disease and coronary artery disease which occur more commonly in diabetic patients. Treatment of CLTI in the diabetic patient is complex and should involve a multi-disciplinary team to optimize outcomes. Clinicians should use an integrated approach to management based on patient risk assessment, an assessment of the severity of the foot pathology and a structured anatomical assessment of arterial disease as suggested by the Global Vascular Guidelines for CLTI.
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