scholarly journals Hyperglycemia Increases Susceptibility to Ischemic Necrosis

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
D. Lévigne ◽  
M. Tobalem ◽  
A. Modarressi ◽  
B. Pittet-Cuénod

Diabetic patients are at risk for spontaneous foot ulcers, chronic wounds, infections, and tissue necrosis. Current theories suggest that the development and progression of diabetic foot ulcers are mainly caused by arteriosclerosis and peripheral neuropathy. Tissue necrosis plays a primordial role in the progression of diabetic foot ulcers but the underlying mechanisms are poorly understood. The aim of the present study was to investigate the effects of hyperglycemiaper seon the susceptibility of ischemic tissue to necrosis, using a critical ischemic hind limb animal model. We inflicted the same degree of ischemia in both euglycemic and streptozotocin-induced hyperglycemic rats by resecting the external iliac, the femoral, and the saphenous arteries. Postoperative laser Doppler flowmetry of the ischemic feet showed the same degree of reduction in skin perfusion in both hyperglycemic and euglycemic animals. Nevertheless, we found a significantly higher rate of limb necrosis in hyperglycemic rats compared to euglycemic rats (71% versus 29%, resp.). In this study, we revealed that hyperglycemiaper seincreases the susceptibility to limb necrosis in ischemic conditions. Our results may help to better understand the physiopathology of progressive diabetic wounds and underline the importance of strict glycemic control in patients with critical limb ischemia.

2013 ◽  
Vol 20 (4) ◽  
pp. 389-393 ◽  
Author(s):  
Teodora Chiţă ◽  
Delia Muntean ◽  
Luminiţa Badiţoiu ◽  
Bogdan Timar ◽  
Roxana Moldovan ◽  
...  

Abstract Background and aims: Infected foot ulcer is one of the most feared complications of diabetes mellitus. Staphylococcus aureus is the most frequently isolated pathogen in diabetic foot infections. The aim of this study was to evaluate the prevalence of S. aureus strains involved in producing foot infections in diabetic patients and the antibiotic resistance pattern of these strains. Material and methods: The study included 33 S. aureus strains isolated from 55 diabetic foot ulcers. The subjects were selected from the 2465 patients with diabetes mellitus hospitalized in the Timişoara Diabetes Clinic, between 2011 and 2013. Germs’ identification relied on cultural and biochemical characteristics. Final identification and antimicrobial testing were performed using the Vitek 2 (Bio Merieux France) automatic analyzer. Results: All the 55 samples collected from diabetic foot ulcers were positive. We isolated 64 bacterial strains (some samples were positive for 2 microorganisms). The most frequently isolated germ was S. aureus, in 33 samples (51.56%). All these S. aureus strains showed resistance to benzylpenicillin, while only 33.33% were methicillin-resistant (MRSA). Conclusions: The most frequently isolated germ in the wound secretions from diabetic foot ulcers was S. aureus. The highest percentage of antimicrobial resistance was recorded to benzylpenicillin and erythromycin.


QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Amr Abdelaal ◽  
Mostafa Soliman ◽  
Hany Rafik ◽  
Mohamed Emam ◽  
Mohamed Mahmoud Mohamed Elsadek

Abstract Background Diabetic foot ulcers (DFUs) are the main cause of hospitalization in diabetic patients and they are considered a major worldwide health problem. Thus, there is a need to evaluate various treatment modalities. In this study we will assess the clinical efficacy of Silver nanoparticles dressing vs Standard Moist Wound Dressing (SMWD) in management of diabetic foot ulcers. Objective To compare wound outcome, limb salvage, healing time of diabetes related foot ulcers and cost effectiveness in terms of duration of hospital stay between Silver nanotechnology dressings and Standard moist wound therapy (SMWT) in management of diabetic foot ulcers. Patients and Methods This is a prospective randomized controlled study involving 34 patients with active diabetic foot ulcers, in a high volume tertiary referral vascular center. They were divided into 2 groups: 17 patients (group A) were prescribed SMWD and the other 17 patients (group B) received Silver nanoparticles wound dressing. Results Our study correlates with the study conducted by K.Suhas et al. which had observed that Silver nanoparticles wound dressing was safe and effective treatment for complex diabetic foot wounds and could lead to higher proportion of healed wounds and faster healing rates. At the end of the study, group B promised a better outcome as compared to group A. Conclusion The role of Silver nanoparticles wound dressing in healing of diabetic foot ulcers has been proposed as a novel method of manipulating the chronic wound environment in a way that it reduces bacterial burden and chronic interstitial wound fluid, increases vascularity and cytokine expression and to an extent mechanically exploiting the viscoelasticity of peri wound tissues.


2020 ◽  
Author(s):  
Olufunmilayo O Adeleye ◽  
Ejiofor T Ugwu ◽  
Ibrahim D Gezawa ◽  
Innocent Okpe ◽  
Ignatius Ezeani ◽  
...  

Abstract Background: Diabetic foot ulcers (DFU) are associated with high morbidity and mortality globally. Mortality in patients hospitalized for DFU in Nigeria is unacceptably high. This study was undertaken to determine factors that predict mortality in patients hospitalized for DFU in Nigeria.Methods:The current study was part of Multi-centre Evaluation of Diabetic Foot Ulcer in Nigeria (MEDFUN), an observational study conducted in six tertiary healthcare institutions across the 6 geopolitical zones of Nigeria. Consecutive type 1 or 2 diabetic patients hospitalized for DFU who consented to participate were recruited and subjected to relevant clinical, biochemical and radiological assessments and multidisciplinary care until discharge or death. Data for type 1 diabetes mellitus (DM) patients were expunged from current mortality analysis due to their small number.Results: Three hundred and twenty three type 2 DM subjects with mean age and mean duration of DM of 57.2 11.4 years and 8.7± 5.8 years respectively participated in this study. The median duration of ulcers was 39 days with a range of 28 to 54 days and majority (79.9%) presented with advanced ulcers of at least Wagner grade 3. Mortality of 21.4% was recorded in the study, with the highest mortality observed among subjects with Wagner grade 5. Variables significantly associated with mortality with their respective p values were DM duration more than 120 months (p 0.005), ulcer duration > one month (p 0.020), ulcer severity of Wagner grade 3 and above (p 0.001), peripheral arterial disease (p 0.005), proteinuria (p <0.001), positive blood cultures (p<0.001), low HDL (p <0.001), shock at presentation (p<0.001), cardiac failure (p 0.027),and renal impairment (p <0.001). On Multivariate regression analysis, presence of bacteraemia (OR 5.053; 95% CI 2.572-9.428) and renal impairment (OR 2.838; 95% CI 1.349 – 5.971) were significantly predictive of mortality independent of other variables.Conclusions: This study showed high intra-hospital mortality among patients with DFU, with majority of deaths occurring among those with advanced ulcers, bacteremia, cardiac failure and renal impairment. Prompt attention to these factors might be helpful in improving survival from DFU in Nigeria.


Author(s):  
GF PEREIRA ◽  
M BALMITH ◽  
M NELL

Objective: A chronic wound fails to progress through the phases of wound healing in an orderly and appropriate process, and poses a major challenge to wound care professionals. Pressure ulcers (PUs) and diabetic foot ulcers (DFUs) are classified as chronic wounds. Antiseptics, such as povidone-iodine (PVP-I), are often used to treat bacterial infections in chronic wounds; however, their efficacy and ability to accelerate wound healing has come into question. As a result, current medical research is now focusing on alternative and natural antiseptic agents, such as honey, for the treatment of chronic wounds. The aim of this study was to analyze the wound healing effects of honey in PU and DFU treatment in comparison to standard antiseptic care. Methods: A systematic literature search of PubMed, ScienceDirect, and ClinicalKey was conducted to identify all published data of clinical trials and narrative reviews that investigated or reported the use of honey and standard antiseptics in the treatment of PUs and DFUs in adults. A keyword search was then performed using the following keywords: “PUs”, “DFUs”, “antiseptics”, “PVP-I”, “honey”, “Manuka honey (MH)”, and “wound healing”. Database restrictions were implemented based on the inclusion and exclusion criteria, notably the report’s availability, completion status and language, the sample populations’ age, as well as, the date of publication. A preferred reporting item for systematic review and meta-analysis (preferred reporting items for systematic reviews and meta-analyzes) diagram was constructed illustrating the study selection process. The eligibility of articles was assessed by the screening of titles, abstracts and full texts. A total of 12 articles were included in this study comprising of 775 patients with PUs, DFUs or a combination of PUs and DFUs. Results: Results indicated that honey reduced bacterial infection, reduced pain and edema experienced by patients, reduced the odor of the wound and promoted wound healing in the treatment of chronic ulcers. Honey was also found to be effective in the process of debridement and exudate removal. Conclusion: Honey was found to be highly effective in the treatment of PUs and DFUs and should be considered as an alternative to standard antiseptic care in the treatment of chronic wounds. However, the literature in this study is limited and so further research into honey and its antiseptic-promoting activity in wound healing is recommended.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chinedum Ogbonnaya Eleazu ◽  
Aniza Abd Aziz ◽  
Tay Chuu Suen ◽  
Lam Chun-Hau ◽  
Chin Elynn ◽  
...  

Purpose This study aims to design to assess the traditional, complementary and alternate medicine (TCAM) usage and its association with the quality of life (QOL) of Type 2 diabetic patients in a tertiary hospital (Hospital Universiti Sains Malaysia) in Malaysia. Design/methodology/approach A total of 300 respondents included in this study were divided into the following two major categories: TCAM (34.33% of respondents) and non-TCAM users (65.67% of the respondents), respectively. The mean ages of the respondents were 59.3 ± 10.2 for the TCAM users and 57.7 ± 12.0 for the non-TCAM users. Findings A greater percentage of non-TCAM users reported poor control of diabetes (14.7%) and blood glucose (55.8%) compared with the TCAM users (9.7% and 48.5%, respectively). Further, the diabetic patients on TCAM reported lower rates of coma, stroke and kidney problems but higher rates of diabetic foot ulcers, heart diseases and retinopathy than the non-TCAM users. Additionally, the diabetic patients with TCAM usage had a significantly better physical (p = 0.02) and overall (p = 0.03) qualities of life compared to the non-TCAM users. However, psychological, social and environmental health did not show any significant difference. Originality/value The prevalence of TCAM usage among diabetic patients was lower than in other comparable studies. Diabetic patients on TCAM reported lower rates of coma, stroke and kidney problems but higher rates of diabetic foot ulcers, heart diseases and retinopathy than the non-TCAM users. Further, diabetes patients on TCAM reported better QOL compared to non-TCAM users especially in terms of physical health.


2016 ◽  
Vol 04 (01) ◽  
pp. 017-024 ◽  
Author(s):  
Andrew Steel ◽  
John Reece ◽  
Anne-Marie Daw

AbstractThe prevalence of diabetes is increasing, as is the cost of managing its comorbidities. Diabetic foot ulcers (DFUs) and their complications place a considerable cost burden on the health system, and lead to a significant level of disability. The relationship between depression and diabetes is well-established. The relationship between depression and foot ulcers in diabetic patients is less well-established. The purpose of this article is to provide a current concept review of the literature from 1988 to 2013, linking DFUs and depressive symptoms, with an emphasis on the impact depressive symptoms have on healing rates of DFUs. Articles specifically focusing on the biological relationship, depression′s impact on self-care, screening for depressive symptoms, causes and cost of treating DFUs, and measuring depression were reviewed. A deeper understanding of this relationship is needed to identify causal relationships, improve treatment outcomes, and reduce healing times of DFUs.


2020 ◽  
Vol 2020 ◽  
pp. 1-18 ◽  
Author(s):  
Elahe Mahdipour ◽  
Amirhossein Sahebkar

Background. Recombinant proteins and growth factors are emerging therapies for diabetic foot ulcers. Despite several clinical reports, there has been no comprehensive and systematic assessment of the totality of clinical evidence on the efficacy and safety of recombinant proteins and growth factors in diabetic foot ulcers. We tried to address this gap through an updated systematic review of randomized controlled trials (RCTs). Methods. PubMed, the Cochrane Library, Scopus, Embase, and Google Scholar databases were searched, and RCTs on the efficacy of recombinant proteins and growth factors in the treatment of cutaneous wounds in diabetic patients were selected. The literature search and assessment were performed by two independent reviewers. Methodological quality of studies was appraised using the Jadad scale. Results. We identified 26 RCTs involving diabetic patients with ulcer that evaluated the effectiveness of platelet-derived growth factor, epidermal growth factor, fibroblast growth factor, granulocyte colony-stimulating factor, vascular endothelial growth factor, erythropoietin, transforming growth factor, talactoferrin, and rusalatide acetate. The main primary outcome was complete healing though different indices were employed to define this such as wound closure, granulation tissue formation, or complete reepithelialization. Few studies had a follow-up period to report any recurrence and amputation rate. No adverse effect was reported due to the intervention. Conclusion. Overall, there is a greater agreement on the effectiveness of EGF to enhance the healing of diabetic ulcers. Nevertheless, extant evidence is lacking for other agents since few trials have been conducted for most of the growth factors and available studies are heterogeneous in their methodologies.


2017 ◽  
Vol 110 (3) ◽  
pp. 104-109 ◽  
Author(s):  
Jonathan Zhang Ming Lim ◽  
Natasha Su Lynn Ng ◽  
Cecil Thomas

The rising prevalence of diabetes estimated at 3.6 million people in the UK represents a major public health and socioeconomic burden to our National Health Service. Diabetes and its associated complications are of a growing concern. Diabetes-related foot complications have been identified as the single most common cause of morbidity among diabetic patients. The complicating factor of underlying peripheral vascular disease renders the majority of diabetic foot ulcers asymptomatic until latter evidence of non-healing ulcers become evident. Therefore, preventative strategies including annual diabetic foot screening and diabetic foot care interventions facilitated through a multidisciplinary team have been implemented to enable early identification of diabetic patients at high risk of diabetic foot complications. The National Diabetes Foot Care Audit reported significant variability and deficiencies of care throughout England and Wales, with emphasis on change in the structure of healthcare provision and commissioning, improvement of patient education and availability of healthcare access, and emphasis on preventative strategies to reduce morbidities and mortality of this debilitating disease. This review article aims to summarise major risk factors contributing to the development of diabetic foot ulcers. It also considers the key evidence-based strategies towards preventing diabetic foot ulcer. We discuss tools used in risk stratification and classifications of foot ulcer.


Diabetes Care ◽  
2008 ◽  
Vol 31 (7) ◽  
pp. 1288-1292 ◽  
Author(s):  
E. Ghanassia ◽  
L. Villon ◽  
J.-F. Thuan dit Dieudonne ◽  
C. Boegner ◽  
A. Avignon ◽  
...  

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