Risk Factors Predicting Lower Extremity Amputations in Patients With NIDDM

Lehto, Seppo; Rönnemaa, Tapani; Pyörälà, Kalevi; Laakso, Markku

doi:10.2337/diacare.19.6.607

Cited by 164 publications

(111 citation statements)

References 39 publications

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“…A notable amount of literature exists on risk factors for amputation among patients with diabetes. A number of risk factors have been reported, including age (31,32), gender (33,34), ischemic heart disease (31), hypertension (31), peripheral artery disease (35), nephropathy (36), duration of diabetes (37) and hemoglobin A1C (38,39). However, there are inconsistencies among studies regarding smoking as a risk factor for diabetic foot amputation.…”

Section: Discussionmentioning

confidence: 99%

Smoking increases the risk of diabetic foot amputation: A meta-analysis

et al. 2017

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Abstract. Accumulating evidence suggests that smoking is associated with diabetic foot amputation. However, the currently available results are inconsistent and controversial. Therefore, the present study performed a meta-analysis to systematically review the association between smoking and diabetic foot amputation and to investigate the risk factors of diabetic foot amputation. Public databases, including PubMed and Embase, were searched prior to 29th February 2016. The heterogeneity was assessed using the Cochran's Q statistic and the I 2 statistic, and odds ratio (OR) and 95% confidence interval (CI) were calculated and pooled appropriately. Sensitivity analysis was performed to evaluate the stability of the results. In addition, Egger's test was applied to assess any potential publication bias. Based on the research, a total of eight studies, including five cohort studies and three case control studies were included. The data indicated that smoking significantly increased the risk of diabetic foot amputation (OR=1.65; 95% CI, 1.09-2.50; P<0.0001) compared with non-smoking. Sensitivity analysis demonstrated that the pooled analysis did not vary substantially following the exclusion of any one study. Additionally, there was no evidence of publication bias (Egger's test, t=0.1378; P=0.8958). Furthermore, no significant difference was observed between the minor and major amputation groups in patients who smoked (OR=0.79; 95% CI, 0.24-2.58). The results of the present meta-analysis suggested that smoking is a notable risk factor for diabetic foot amputation. Smoking cessation appears to reduce the risk of diabetic foot amputation.

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Section: Discussionmentioning

confidence: 99%

Smoking increases the risk of diabetic foot amputation: A meta-analysis

et al. 2017

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“…Description of studies Fourteen prospective studies [2,10,12,[20][21][22][23][32][33][34][35][36][37][38] involving 94,640 participants and 1,227 LEA cases were included. Details of study characteristics are provided ( Table 1).…”

Section: Resultsmentioning

confidence: 99%

Association between glycated haemoglobin and the risk of lower extremity amputation in patients with diabetes mellitus—review and meta-analysis

et al. 2010

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Aims/hypothesis Diabetes increases the risk of lower extremity amputation (LEA). Although epidemiological studies report positive associations between glycaemia and LEA, the magnitude of the risk is not adequately quantified and clinical trials to date have not provided conclusive evidence about glucose lowering and LEA risk. We synthesised the available prospective epidemiological data on the association between glycaemia measured by HbA 1c and the risk of LEA in individuals with diabetes. Methods We searched electronic databases and reference lists of relevant articles. We considered prospective epidemiological studies that had measured HbA 1c level and assessed LEA as an outcome among diabetic individuals without acute foot ulcerations or previous history of amputation. Of 2,548 citations identified, we included 14 studies comprising 94,640 participants and 1,227 LEA cases. We abstracted data using standardised forms and obtained data from investigators when required. Data included characteristics of study populations, HbA 1c assay methods, outcome and covariates. Study-specific relative risk estimates were pooled using random-effects model meta-analysis; heterogeneity was explored with metaregression analyses. Results The overall RR for LEA was 1.26 (95% CI 1.16-1.36) for each percentage point increase in HbA 1c . There was considerable heterogeneity across studies (I 2 76%, 67-86%; p<0.001), which was not accounted for by recorded study characteristics. The estimated RR was 1.44 (95% CI 1.25-1.65) for type 2 diabetes and 1.18 (95% CI 1.02-1.38) for type 1 diabetes; however, the difference was not statistically significant (p=0.09). We found no strong evidence for publication bias. Conclusions/interpretation There is a substantial increase in risk of LEA associated with glycaemia in individuals with diabetes. In the absence of conclusive evidence from trials, this paper provides further epidemiological support for glucose-lowering as a strategy to reduce amputation in a population without acute foot ulceration or former amputation; it also provides disease modellers with estimates to assess the overall burden of hyperglycaemia.

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“…Quanto ao controle glicêmico, estudos referem que um controle glicêmico pobre aumenta o risco de neuropatia e amputação nas pessoas com diabetes (7,63) , o que é comprovado por revisões recentes, que evidenciaram que um controle glicê-mico eficaz reduz o risco de retinopatia, neuropatia e nefropatia no diabetes tipo 2 (58,62,64) ; assim, seu parâmetro de medida na hemoglobina glicada (HbA 1c ) constitui-se em uma das pedras angulares que podem retardar o desencadeamento e/ou controlar as doenças associadas ao diabetes, com conseqüente melhora na qualidade de vida.…”

Section: Avaliação Dos Pés E Prevenção De Complicaçõesunclassified

Pé diabético: estratégias para prevenção

Ochoa-Vigo

Pace

2005

Acta paul. enferm.

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Ochoa-Vigo K, Pace AE. Pé diabético: estratégias para prevenção. Acta Paul Enferm 2005; 18(1):100-9.RESUMO: Aproximadamente 50% das amputações não-traumáticas em membros inferiores ocorrem entre pessoas com diabetes. As amputações são precedidas por úlceras, caracterizadas por lesões cutâneas, com perda do epitélio, que podem estender-se até a derme ou chegar a tecidos profundos. As úlceras, geralmente, são acompanhadas de insensibilidade por neuropatia periférica crônica e associadas a pequenos traumas que se originam do uso de calçados inapropriados, dermatoses comuns ou manipulações incorretas dos pés. O objetivo deste estudo é descrever as principais estratégias para avaliar fatores de risco que conduzem ao desenvolvimento de complicações nos membros inferiores entre pessoas com diabetes, bem como considerá-las uma responsabilidade da equipe de assistência primária. É um trabalho de revisão da literatura, com ênfase na avaliação dos pés como medida preventiva fundamental, para identificar, precocemente, as alterações neurológica e vascular periféricas e disfunções biomecânicas. Destaca-se a avaliação dos calçados como fator externo.

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Risk Factors Predicting Lower Extremity Amputations in Patients With NIDDM

Abstract: Our 7-year follow-up study gives strong evidence that poor glycemic control is an important predictor of amputation in patients with NIDDM in addition to clinically detectable peripheral arterial disease and peripheral neuropathy.

Cited by 164 publications

References 39 publications

Smoking increases the risk of diabetic foot amputation: A meta-analysis

Smoking increases the risk of diabetic foot amputation: A meta-analysis

Association between glycated haemoglobin and the risk of lower extremity amputation in patients with diabetes mellitus—review and meta-analysis

Pé diabético: estratégias para prevenção

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