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Indian Journal of Pharmacy and Pharmacology

Indian Journal of Pharmacy and Pharmacology (IJPP) is an open-access, peer-reviewed pharmacy journal, published quarterly, as print and online by the Innovative Education and Scientific Research Foundation (IESRF) since 2014. IESRF is dedicated to the transfer of technology and research by publishing scientific journals, research content, providing professional membership, and conducting conferences, seminars, and award programs. With the aim of faster and better dissemination of knowledge, we will be publishing artic...

Prevalence of DFU among diabetic patients and its management

Author Details:  Amit Kumar * S. Sai Prasanna R. Charishma R. Satya Divya R. V. V. Sowjanya

Abstract

Objective: To study the prevalence of DFU among diabetic patients and the management of DFU among diabetic patients.

Design: Prospective observational study.

Materials and Methods: The study was conducted in inpatients with diabetes of all departments and inpatients with diabetic foot ulcer (DFU) of surgical department of age 20 to 80 of both genders with sample size 150 were included from September 2019 to march 2020.

Results: The prevalence of DFU among diabetic patients was 16%. Among them more diabetic cases were seen in age group of 50-59 and DFU in 40-49 and More diabetic cases are observed in male compared to female. DFU observed equally and the most common causative organism for DFU was staphylococcus aureus followed by proteus species, klebsiella and pseudomonas aeruginosa and more cases of DFU were noticed in diabetic patients with duration of 6-10 years. As the main cause of DFU is infection the primary treatment is anti microbial therapy and the most prescribed class of antibiotics is cephalosporins followed by nitroimidazoles, penicillins, oxazolidinones, lincosamides etc. surgical procedures like debridement, amputation and sometimes both were done in 9,14,1 patients respectively.

Conclusion: Our study revealed the information regarding the prevalence of DFU among diabetic patients is due to lack of knowledge and uncontrolled diabetes may develop poor circulation which leads to wound that may heal slowly which leads to DFU.

Introduction

Diabetic foot ulcers

DFU is one of the most significant and devastating complications of diabetes, and is defined as a foot affected by ulceration that is associated with neuropathy and/or peripheral arterial disease of the lower limb in a patient with diabetes,[1] forming as a result of skin tissue in break down and exposing the layers underneath. They are most common under big toes and the balls of feet, and they can affect your feet down to the bones.[2] Clinical features are Erythema, oedema, heat, and pain are signs of inflammation. Serous exudate, delayed healing, friable granulation tissue, discoloured granulation tissue, foul odour, pocketing of the wound base, and wound breakdown are thought of as signs specific to secondary wounds those healing by secondary, rather than primary intention.

Aetiology

The majority of foot ulcers appear to result from minor trauma in the presence of sensory neuropathy. Calluses, oedema, and peripheral vascular disease have been identified as etiological factors in the development of diabetic foot ulcers. There are several components that cause the emergence of diabetic foot ulcers in diabetic patients, can be divided into two major factors: Causative factor: Role of loss of sensation in foot mainly due to peripheral neuropathy (sensory, motor, autonomic), High foot plantar pressure, Micro fractures Contributive factor: Atherosclerosis, Diabetes.[3]

Prevalence of diabetic foot ulcer among diabetic patients

The prevalence of diabetic foot ulceration in the diabetic population is 4-10%; the condition is more frequent in older patients. It is estimated that about 5% of all patients with diabetes present with a history of foot ulceration, while the lifetime risk of diabetic patients developing this complication is 15%. The majority (60-80%) of foot ulcers will heal, while 10-15% of them will remain active, and 5-24% of them will finally lead to limb amputation within a period of 6-18 months after the first evaluation. Neuropathic wounds are more likely to heal over a period of 20 weeks, while neuro ischemic ulcers take longer and will more often lead to limb amputation.[1]

Treatment

Successful treatment of diabetic foot ulcers consists of debridement, offloading, amputation and infection control. Debridement consists of removal of all necrotic tissue, peri-wound callus, and foreign bodies down to viable tissue, to improve the healing potential of the remaining healthy tissue.[4] Amputation is the removal of a nonviable limb and should be considered in patients with uncontrolled infections or non healing wounds.[5] Infection control: Antibiotics selected to treat severe or limb-threatening infections should include coverage of gram-positive and gram-negative organisms and provide both aerobic and anaerobic coverage.[6] Antibiotic therapy: cephalosporins, penicillin/beta-lactamase inhibitor congeners and Miscellaneous agents.

Materials and Methods

This was a prospective observational study of diabetic and DFU patients between September 2019 to march 2020 conducted in all departments of GSL general hospital and medical college. Sample size was 150 patients. Diabetic patients from all departments were included in the study. Diabetic patients of age 20 to 80 years were included. Patients of both genders were included. Non diabetic patients were excluded from this study. Incomplete case files were excluded. Data was collected directly from the prescriptions and case sheets of individual patients from the hospital on a specially designed data collection form, questionnaire and after filling the informed consent form from each patient.

Results

The data obtained from sample size of 150 diabetic patients in which 24 DFU cases were reported. From their patient data collection forms, the following results were obtained.

Age wise distribution

In this present study we categorized 150 diabetic patients into 6 groups based on age. More cases (50 among 150) of diabetes were seen in age group of 50-59 and more DFU cases (10 among 24) were seen in age group of 40-49. More prevalence of DFU among diabetic patients was seen in the age group of 40-49(35.7%).

Age in years

Diabetes(n=150)

DFU(n=24)

Percentage of DFU (%)

20-29

9

0

0

30-39

8

0

0

40-49

28

10

35.7

50-59

50

7

14

60-69

33

6

18.1

≥70

22

1

4.5

Table 1 Age wise distribution

Gender wise distribution

Considering the gender, when we compare between male and female diabetic patients, more cases are noted in males (76) when compared to females (74), whereas DFU cases among diabetic patients was noted in females (12) and males (12).

Gender

Diabetes(n=150)

Dfu(n=24)

Percentage (%)

Male

76

12

15.7

Female

74

12

16.2

Table 2 Gender wise distribution

Causative organism

In the present study the most common organism cultures was staphylococcus aureus followed by proteus species, klebsiella species and the other species are pseudomonas aeruginosa, E. coli. In 1-2 cases the culture report revealed that there are multiple causative organisms.

Percentage of causative organism
Figure 1 : Percentage of causative organism

Duration of diabetes

In this study more cases of DFU were noticed in the diabetic patients with duration of 6-10 years of diabetes i.e. about 11 cases among 24.

Duration of diabetes surgery
Figure 2 : Duration of diabetes surgery

If DFU cases doesn’t respond to antibiotic therapy, then the treatment modified to surgery. Based on surgery done in this study, the cases were divided into debridement (9) and amputation (14) and both.[1]

Site of lesion

In most of the DFU cases, the site of lesion was dorsum of foot followed by plantar of right foot and then by right great toe, sole of right foot and dorsum of left foot.

Site of lesion

No. of cases (n=24)

Dorsum of right foot

8

Plantar of right foot

7

Right great toe

4

Sole of right foot

4

Dorsum of left foot

1

Table 3 Site of lesion

Prevalence of DFU among diabetic patients

This study revealed that prevalence of DFU among diabetic patients who attended to all departments of GSL General Hospital was 16% (24 DFU cases among 150 diabetic patients).

Prevalence of DFU among diabetic patients
Figure 3 : Prevalence of DFU among diabetic patients

Drugs

In this study we observed that the drug therapy given to the patients with DFU includes:

Antibiotics, Anti-diabetics and Other drugs. As the main cause of this DFU is infection, the primary treatment is antimicrobial therapy. The most prescribed class of antibiotics is cephalosporins followed by nitroimidazoles, penicillins, oxazolidinones, lincosamides and others are fluoroquinolones, macrolides and combinations.

Antibiotics

Examples

No. of prescriptions

Roa

Oral

IV

Cephalosporins

Ceftriaxone

8

0

8

Cefotaxime

2

2

0

Cefoperazone + sulbactam

1

0

1

Penicillin’s

Amoxicillin + clavulanic acid

2

2

0

Piperacillin + tazobactam

1

0

0

Fluoroquinolones

Levofloxacin

1

1

0

Macrolides

Azithromycin

1

1

0

Nitroimidazole

Metronidazole

4

0

4

Oxazolidinones

Linezolid

3

1

2

Lincosamides

Clindamycin

2

2

0

Fluoroquinolones + nitroimidazole

Ciprofloxacin + tinidazole

2

2

0

Table 4 Antibiotics

Anti diabetics

Examples

No. of Prescriptions

Roa

Oral

IV

SC

Insulin

H. Actrapid

15

0

5

10

H. Mixtard

2

0

0

2

Biguanides

Metformin

7

7

0

0

Sulphonyl ureas + biguanides

Glimepiride + metformin

4

4

0

0

Sulphonyl ureas + biguanides + alpha glucosidase inhibitors

Glimepiride+metformin+ voglibose

5

5

0

0

Dipeptidyl peptidase 4-inhibitors

Tenigliptin Vildagliptin

1 1

1 1

0 0

0 0

Table 5 Anti diabetics

Analgesics

Examples

No. of prescriptions

Roa

Oral

IV

Non opioid

Paracetamol

3

3

0

Opioid

Tramadol

4

2

2

Non opioid + opioid

Tramadol + acetaminophen

4

4

0

Table 6 Analgesics

Antacids

Examples

No. of prescriptions

Roa

Oral

IV

Proton pump inhibitors

Pantoprazole

24

15

9

Table 7 Antacids

Discussion

The study was aimed to determine the prevalence of DFU among diabetes patients and its management in all departments of GSL hospital, Rajahmundry. This study is done by using the case sheets of all the diabetic patients from all departments with sample size of 150. This study revealed that 16% (24) of all diabetic patients from all departments are prevalent to DFU and 84% (134) were not affected by DFU. Management of DFU mainly included antimicrobial therapy along with antidiabetics and other drugs included are analgesics and antacids. Diabetes mellitus, according to WHO is defined as a heterogeneous metabolic disorder characterised by common feature of chronic hyperglycaemia with disturbance of carbohydrate, fat and protein metabolism. The global prevalence of diabetic foot ulcer is about 15% of people with diabetes and precedes 84% of all diabetes related lower leg amputations. In total, we studied 150 diabetic cases at GSL Hospital, Rajahmundry in which 24 DFU cases were reported. The analysis of the study is as follows. More cases (50 among 150) of diabetes were seen in age group of 50-59 and more DFU cases (10 among 24) were seen in age group of 40-49. More prevalence of DFU among diabetic patients was seen in the age group of 40-49(35.7%). Even though 9 cases were seen in the age group of 20-29, no DFU cases were seen among those 9 patients. Similarly, 8 cases were seen in the age group of 30-39, no DFU cases were recorded among those 8 patients and the percentage of DFU among diabetes patients was 14%,18.1%,4.5% in the age groups of 50-59,60-69, ≥70 respectively. These details are given in the below table1 and figure1&2. When we considered the gender, we compared between male and female diabetic patients, more cases are noted in males (76) when compared to females (74), whereas DFU cases among diabetic patients was noted in females (12) and males(12). Percentage of DFU among male diabetes patients was 15.7%.and 16.2% among female diabetic patients. When coming to the causative organisms, most common organism cultures was staphylococcus aureus(11 i.e,45.8%) followed by proteus species (3 i.e,12.5%), klebsiella species(3i.e,12.5%) and the other species are pseudomonas aeruginosa(1i.e,4.16%), E. coli.(2 i.e,8.33%).candida species(1i.e,4.16%). In 1-2 cases the culture report revealed that there are multiple causative organisms. Duration of diabetes is also a considerable factor, this study revealed that more cases of DFU were noticed in the diabetic patients with duration of 6-10 years of diabetes i.e. about 11 cases among 24 and 1,6,4,2 DFU cases among diabetes cases with the duration of <1 year,1-5years,11-15years,16-20years respectively. If DFU cases doesn’t respond to antibiotic therapy, then the treatment modified to surgery. Based on surgery done in this study, the cases were divided into debridement (9) and amputation (14) and both (1). If DFU cases doesn’t respond to antibiotic therapy, then the treatment modified to surgery. Based on surgery done in this study, the cases were divided into debridement (9) and amputation (14) and both (1). In this study we observed that the drug therapy given to the patients with DFU includes: Antibiotics, Anti-diabetics, Other drugs. As the main cause of this DFU is infection, the primary treatment is antimicrobial therapy. The most prescribed class of antibiotics is cephalosporins followed by nitroimidazoles, penicillin’s, oxazolidinones, lincosamides and others are fluoroquinolones, macrolides and combinations.

Conclusion

The prevalence of DFU among diabetic patients is mainly due to increased blood sugar levels, infections, improper foot care, improper diet and medication adherence, injury to the foot which shows impact on foot ulcer. Our study revealed the addressed information regarding the prevalence of DFU among diabetic patients is due to lack of knowledge and uncontrolled diabetes may develop poor circulation which may further leads to wound that may heal slowly shows impact on diabetes which in turn leads to DFU. The correct therapy given to DFU patients is blood glucose control, wound debridement, advanced therapy, surgery and proper education. These approaches are used to reduce extreme morbidities and serious complications resulting from foot ulcers. The preventive measures in reduction of DFU are by educating the patients to reduce weight, good diabetic control, foot self-care practice, simple hygienic practices, regular foot examination, provision of appropriate foot wear, patient education, treatment of minor injuries can decrease the ulcer occurrence and eliminate the need for major amputation.

Abbreviations

DFU: Diabetic Foot Ulcer

WHO: World Health Organization

Source of Funding

None.

Conflict of Interest

None.

Acknowledgment

The authors would like to thank Dr. Ch. Sreenivasa Rao, Department of Surgery and all the staff in GSL medical college & general hospital, Rajanagaram for their clinical support. Finally we would like to thank everybody who was important to the successful realization of thesis, as well as expressing.

References

  1. Alexiadou K, Doupis J. Management of Diabetic Foot Ulcers. Diabetes Ther. 2012;3(1):1869 -6961. [Google Scholar]
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  • DOI 10.18231/j.ijpp.2021.046
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  • Citation
  • Received Date September 21, 2021
  • Accepted Date October 12, 2021
  • Publication Date January 05, 2022