scholarly journals Isolation and characterization of bacteria from diabetic foot ulcer: amputation, antibiotic resistance and mortality rate

Author(s):  
Muamar M. A. Shaheen ◽  
Sewar Al Dahab ◽  
Maryiam Abu Fada ◽  
Rawand Idieis
2018 ◽  
Vol 108 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Carla D. McArdle ◽  
Katie M. Lagan ◽  
David A. McDowell

Background: This study investigated the resistance of bacteria isolated from diabetic foot ulcers (DFUs) to antibiotics frequently used in the management of the diabetic foot infections, at a range of pH values (pH 6.5, 7.5, and 8.5) known to exist in DFU wound fluid. This study aimed to determine whether changes (or atypical stasis) in wound fluid pH modulate the antibiotic resistance of DFU isolates, with potential implications in relation to the suppression/eradication of bacterial infections in DFUs. Methods: Thirty bacterial isolates were recovered from DFU wound fluid, including Staphylococcus spp, Staphylococcus aureus, Escherichia coli, Streptococcus spp, Pseudomonas spp, and Pseudomonas aeruginosa. The resistances of these isolates to a panel of antibiotics currently used in the treatment of infected or potentially infected DFUs, ie, ciprofloxacin, amoxicillin-clavulanate, doxycycline, and piperacillin-tazobactam, at the previously mentioned pH values were determined by a modification of the Kirby-Bauer assay. Results: The resistance of DFU isolates to clinically relevant antibiotics was significantly affected by the pH levels in DFU wound fluid. Conclusions: These findings highlight the importance of a more comprehensive understanding of the conditions in DFUs to inform clinical decision making in the selection and application of antibiotics in treating these difficult-to-heal wounds. The scale of the differences in the efficacies of antibiotics at the different pH values examined is likely to be sufficient to suggest reconsideration of the antibiotics of choice in the treatment of DFU infection.


2021 ◽  
Vol 9 (3) ◽  
pp. 293
Author(s):  
Arisvia Sukma Hariftyani ◽  
Hermina Novida ◽  
Mouli Edward

Background: Diabetic Foot Ulcer (DFU) has been associated with a high mortality rate of Diabetes Mellitus (DM) patients. Both behavioral and biological factors cause predisposition to DFU. Purpose: This research describes the profile of hospitalized DFU patients at a tertiary care hospital in Surabaya. Methods: A retrospective descriptive study that analyzed medical records of hospitalized T2DM patients with DFU in Dr. Soetomo General Hospital. Sampled respondents were patients ≥ 21 years old who were hospitalized between 2016–2018. Demographic data, clinical characteristics, medical histories, length of hospital stay, laboratory results, precipitating factors, microorganism culture results, treatment, and outcome were analyzed. Descriptive analysis is presented in the form of narratives, tables, and diagrams. Results: 9.08% of hospitalized Type 2 DM (T2DM) cases were related to foot ulcers. The average patient age was 57.00 ± 9.83 years with no gender predominance. DM was poorly controlled (Mean HbA1C 9.78±2.83%; RBG 251.83 ± 158.15 mg/dL). The majority of patients had sepsis (68.26%) and renal function impairment (62.72%). Ulcers with Wagner grades of 4–5 were frequent (41.31%). The highest percentage of sepsis (80.49%) and the average leukocyte level (22.60±11.95 x109/L) were found in gangrenous feet. Anemia was more predominant and severe in ulcers with higher Wagner grades. Trauma and Escherichia coli were the most common precipitating factors and microorganisms isolated, respectively. Amputation was performed for 82.36% of patients who were admitted to hospital with gangrene. The Lower Extremity Amputation (LEA) and mortality rates were 14.11% and 40.93%, respectively. Conclusion: DFUs were found to have a relatively high prevalence among T2DM patients, and must never be neglected due to the high associated mortality rate.


2021 ◽  
Vol 21 (2) ◽  
pp. 1220-1229
Author(s):  
Lumeng Yang ◽  
Fang Liu ◽  
Yijun Chen ◽  
Zhangyi Liu ◽  
Guowu Zhang

The incidence of diabetes has been increasing year by year. Long-term growth in blood sugar causes complications such as diabetic foot ulcer and infections, which will increase the difficulty of ulcer treatment. The diabetes brings great pain and heavy economic burden to patients and their families. In view of the above problems, a nano-silver antibacterial dressing is synthesized in this paper to control bacterial infection on the ulcer surface and promote wound healing. This paper describes the preparation process and morphological characterization of nano-silver antibacterial dressings. 100 patients were selected, which divided into two groups for comparative experiments. The conventional group used conventional vaseline dressing, and the control group was nano-silver antibacterial dressing. The ulcer surface healing time, the number of dressing changes, and the control of infection were analyzed separately, and statistical analysis was performed with SPSS19.0. The experimental results are as follows. The use of nano-silver antibacterial dressing can significantly reduce the incidence of infection in diabetic foot patients, which is helpful to reduce the number of dressing changes, shorten the healing time of ulcer, and accelerate the turnover rate. It helps to shorten the course of diabetic foot, and it is recommended to promote its clinical application.


2016 ◽  
Vol 34 (2) ◽  
pp. 114-116 ◽  
Author(s):  
Teresa Semedo-Lemsaddek ◽  
Carla Mottola ◽  
Cynthia Alves-Barroco ◽  
Patrícia Cavaco-Silva ◽  
Luís Tavares ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Xiaoying Xie ◽  
Yunwen Bao ◽  
Lijia Ni ◽  
Dan Liu ◽  
Shaona Niu ◽  
...  

Objective. To understand the bacterial profile and antibiotic resistance patterns in diabetic foot infection (DFI) in different Wagner’s grades, IDSA/IWGDF grades, and different ulcer types in Guangzhou, in order to provide more detailed suggestion to the clinician about the empirical antibiotic choice. Methods. 207 bacteria were collected from 117 DFIs in Sun Yat-sen Memorial Hospital from Jan.1, 2010, to Dec.31, 2015. The clinical data and microbial information were analyzed. Results. The proportion of Gram-negative bacteria (GNB) was higher than Gram-positive bacteria (GPB) (54.1% versus 45.9%), in which Enterobacteriaceae (73.2%) and Staphylococcus (65.2%) were predominant, respectively. With an increasing of Wagner’s grades and IDSA/IWGDF grades, the proportion of GNB bacterial infection, especially Pseudomonas, was increased. Neuro-ischemic ulcer (N-IFU) was more susceptible to GNB infection. Furthermore, with the aggravation of the wound and infection, the antibiotic resistance rates were obviously increased. GPB isolated in ischemic foot ulcer (IFU) showed more resistance than the N-IFU, while GNB isolates were on the opposite. Conclusions. Different bacterial profiles and antibiotic sensitivity were found in different DFU grades and types. Clinician should try to stay updated in antibiotic resistance pattern of common pathogens in their area. This paper provided them the detailed information in this region.


2020 ◽  
Vol 29 (8) ◽  
pp. 464-471
Author(s):  
Georges Ha Van ◽  
Chloe Amouyal ◽  
Olivier Bourron ◽  
Carole Aubert ◽  
Aurelie Carlier ◽  
...  

Objective: To describe the rates of healing, major amputation and mortality after 12 months in patients with a new diabetic foot ulcer (DFU) and their care in a French diabetic foot service (DFS). Method: A prospective single-centre study including patients from March 2009 to December 2010. The length of time to healing, minor amputation, major amputation and mortality rate after inclusion were analysed using the Kaplan–Meier method. Results: Some 347 patients were included (3% lost to follow-up), with a median follow-up (IQR) of 19 (12–24) months. The mean (SD) age was 65±12 years, 68% were male, and the median duration of the ulcer was 49 (19–120) days. Complications of the DFU were ischaemia (70%), infection (55%) and osteomyelitis (47%). Of the patients, 50% were inpatients in the DFS at inclusion (median duration of hospitalisation 26 (15–41) days). The rate of healing at one year was 67% (95% confidence interval (CI): 61–72); of major amputation 10% (95% CI: 7–17); of minor amputation 19% (95% CI: 14–25), and the death rate was 9% (95% CI: 7–13). Using an adjusted hazard ratio, the predictive factors of healing were perfusion and the area of the wound. The risk factors for a major amputation were active smoking and osteomyelitis. The risk factors for mortality were perfusion and age. Conclusion: This study confirms the need to treat DFUs rapidly, in a multidisciplinary DFS.


Author(s):  
AG Al‐Bakri ◽  
NR Bulatova ◽  
NA Younes ◽  
G Othman ◽  
D Jaber ◽  
...  

2021 ◽  
Vol 30 (Sup6) ◽  
pp. S34-S41
Author(s):  
Georges Ha Van ◽  
Chloe Amouyal ◽  
Olivier Bourron ◽  
Carole Aubert ◽  
Aurelie Carlier ◽  
...  

Objective: To describe the rates of healing, major amputation and mortality after 12 months in patients with a new diabetic foot ulcer (DFU) and their care in a French diabetic foot service (DFS). Method: A prospective single-centre study including patients from March 2009 to December 2010. The length of time to healing, minor amputation, major amputation and mortality rate after inclusion were analysed using the Kaplan–Meier method. Results: Some 347 patients were included (3% lost to follow-up), with a median follow-up (IQR) of 19 (12–24) months. The mean (SD) age was 65±12 years, 68% were male, and the median duration of the ulcer was 49 (19–120) days. Complications of the DFU were ischaemia (70%), infection (55%) and osteomyelitis (47%). Of the patients, 50% were inpatients in the DFS at inclusion (median duration of hospitalisation 26 (15–41) days). The rate of healing at one year was 67% (95% confidence interval (CI): 61–72); of major amputation 10% (95% CI: 7–17); of minor amputation 19% (95% CI: 14–25), and the death rate was 9% (95% CI: 7–13). Using an adjusted hazard ratio, the predictive factors of healing were perfusion and the area of the wound. The risk factors for a major amputation were active smoking and osteomyelitis. The risk factors for mortality were perfusion and age. Conclusion: This study confirms the need to treat DFUs rapidly, in a multidisciplinary DFS.


Sign in / Sign up

Export Citation Format

Share Document