Diabetes mellitus was not associated with lower amputation-free survival after open revascularization for chronic limb-threatening ischemia - A nationwide propensity score adjusted analysis.

The risk of major amputation is higher after urgently planned endovascular therapy for chronic limb-threatening ischemia (CLTI) in patients with diabetes mellitus (DM). The aim of this nationwide cohort study was to compare outcomes between patients with and without DM following urgently planned open revascularization for CLTI from 2010 to 2014. Out of 1537 individuals registered in the Swedish Vascular Registry, 569 were registered in the National Diabetes Register. A propensity score adjusted Cox regression analysis was conducted to compare outcome between the groups with and without DM. Median follow-up was 4.3 years and 4.5 years for patients with and without DM, respectively. Patients with DM more often had foot ulcers (p = 0.034) and had undergone more previous amputations (p = 0.001) at baseline. No differences in mortality, cardiovascular death, major adverse cardiovascular events (MACE), or major amputation were observed between groups. The incidence rate of stroke was 70% higher (95% CI: 1.11-2.59; p = 0.0137) and the incidence rate of acute myocardial infarction (AMI) 39% higher (95% CI: 1.00-1.92; p = 0.0472) among patients with DM in comparison to those without. Open vascular surgery remains a first-line option for a substantial number of patients with CLTI, especially for limb salvage in patients with DM. The higher incidence rates of stroke and AMI among patients with DM following open vascular surgery for infrainguinal CLTI require specific consideration preoperatively with the aim of optimizing medical treatment to improve cardiovascular outcome postoperatively.

The impact of diabetes mellitus on major amputation among patients with chronic limb threatening ischemia undergoing elective endovascular therapy- a nationwide propensity score adjusted analysis.

AIM: To investigate the risk of major amputation after elective endovascular therapy in patients with chronic limb threatening ischemia (CLTI) comparing patients with and without diabetes mellitus (DM). METHODS: In this nationwide cohort study, all patients registered in the Swedish Vascular Register after elective endovascular therapy for CLTI caused by infra-inguinal arterial disease from 2010 to 2014 were included. Among 4578 individuals, 2251 had DM and were registered in the National Diabetes Register between 2009 and 2014. A propensity score adjusted Cox regression analysis was conducted to compare outcomes between groups. Median follow-up was 4.0 and 3.6 years for patients with DM and without DM, respectively. RESULTS: The incidence rates of major amputation and acute myocardial infarction (AMI) were 43% (95% CI 1.23-1.67) and 37% (95% CI 1.13-1.67) higher, respectively, among patients with DM compared to patients without DM. There was no difference in mortality (HR 1.04, 95% CI 0.95-1.14). CONCLUSIONS: Patients with DM had a higher risk of major amputation and AMI compared to those without DM after elective endovascular therapy for CLTI. Prevention of DM with CLTI is of utmost importance to reduce the risk of adverse limb and cardiovascular outcomes.

Amputation-free survival in patients with diabetic foot ulcer and peripheral arterial disease: Endovascular versus open surgery in a propensity score adjusted analysis.

AIMS: The aim of the present study was to compare outcomes of endovascular surgery versus open vascular surgery in patients with diabetic foot ulcer (DFU) and peripheral arterial disease (PAD). METHODS: Between 1984 and 2006, 1151 patients with DFU were admitted to the diabetic foot care team. Three hundred seventy-six patients with 408 limbs were consecutively included at a multidisciplinary foot center, 289 limbs were treated with endovascular surgery and 119 limbs with open vascular surgery first strategy. A propensity score adjusted analysis was performed to compare outcomes for type of revascularization. RESULTS: Major amputation rates at 3 years were 17.0% and 16.8% (p = 0.97) and mortality at 3 years were 43.1% and 46.5% (p = 0.55) after endovascular surgery and open vascular surgery, respectively. In the propensity score adjusted analysis, patients undergoing endovascular surgery first had similar outcomes in terms of major amputation, mortality, combined major amputation/mortality compared to those undergoing open vascular surgery. Longer time to intervention (p = 0.003) was associated with increased major amputation rate in the multivariable Cox regression analysis. CONCLUSION: The endovascular surgery first and open vascular surgery first strategies were associated with similar long-term results in a large cohort of patients with DFU and PAD undergoing revascularization. Rapid revascularization reduces the risk of amputation.

The association between dietary intake, lifestyle and incident symptomatic peripheral arterial disease among individuals with diabetes mellitus: insights from the Malmö Diet and Cancer study.

With the rising prevalence of both diabetes mellitus (DM) and peripheral arterial disease (PAD), the aim of this project was to examine the association between dietary intake and lifestyle on the risk of developing PAD among individuals with DM. The Malmö Diet and Cancer study was a prospective cohort study with baseline examinations carried out between 1991 and 1996 in Malmö, Sweden (n = 30,446). Individuals with prevalent PAD and cardiovascular disease (prior stroke or myocardial infarction) were excluded from the study, resulting in a total study population of 1112 patients with prevalent DM. The diagnosis of incident PAD was validated and confirmed in 98% of patients. Of the 1112 individuals, 136 (12.2%) were diagnosed with PAD during a median follow up of 19.7 years (interquartile range 12.9-22.4). Kaplan-Meier analysis showed that men with DM more often developed incident PAD compared with women (cumulative incidences 15.5% and 8.9%, respectively, p = 0.012). In Cox multivariable regression analysis, smoking (hazard ratio of 1.96, 95% confidence interval of 1.28-3.00) was associated with increased risk of PAD, and there was a trend that a higher intake of fish and shellfish (hazard ratio per additional gram per week of 0.99, 95% confidence interval of 0.99-1.00; p = 0.051) was associated with a decreased risk of PAD. In conclusion, the present study demonstrated a trend towards a protective effect of higher intake of fish and shellfish upon incident symptomatic PAD among individuals with DM.

Amputation-Free Survival in Patients With Diabetes Mellitus and Peripheral Arterial Disease With Heel Ulcer: Open Versus Endovascular Surgery.

BACKGROUND:: Heel ulcers in patients with diabetes mellitus (DM) and peripheral arterial disease (PAD) are hard to heal. The aim of the present study was to evaluate the difference in amputation-free survival (AFS) between open and endovascular revascularization in patients with DM, PAD, and heel ulcers. METHODS:: Retrospective comparative study of results of open versus endovascular surgery in patients with DM, PAD, and heel ulcer presented at the multidisciplinary diabetes foot clinic between 1983 and 2013. RESULTS:: Patients with heel ulcers were treated with endovascular intervention (n = 97) and open vascular surgery (n = 30). Kaplan-Meier analysis showed that the AFS was higher in patients undergoing open vascular surgery compared to the endovascular group ( P = .009). Multivariate analysis showed that open vascular surgery versus endovascular therapy (hazard ratio 2.1, 95% confidence interval 1.1-3.9; P = .025) was an independent factor associated with higher AFS. The proportion of patients undergoing endovascular therapy in the former (1983-2000) time period was 47% compared to 89% in the latter (2001-2013) time period ( P < .001). CONCLUSION:: The AFS was higher after open than endovascular surgery among patients with DM and PAD with heel ulcer. These results suggest that open vascular surgery should be offered more often as opposed to current practice.