Efficacy of Honey Gel Tellechea
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Transcript of Efficacy of Honey Gel Tellechea
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Oscar Tellechea
M.D., Ph.D.2
Ana Tellechea, D.Sc.1
Vera Teixeira, M.D.2
Fatima Ribeiro, RN2
1Neurosciences and Cell-
biology centre, University
of Coimbra, Coimbra,
Portugal
2Dermatology Service,
Hospitals of the University
of Coimbra, Coimbra,
Portugal
Correspondence:
Conflict of interest: none
Science, Practice and Education
ABSTRACTChronic leg ulcers are a common medical
problem among elderly patients and have a
dramatic impact on quality of life as a result
of pain, disability, and social isolation.
Regardless of their cause, chronic leg ulcers
remain difficult to treat. In recent years, there
has been increasing interest in the use ofhoney as a therapeutic agent.
Objective:To evaluate the efficacy of honey-
based dressings in the treatment of chronic
leg ulcers.
Methods:Ten patients with chronic (mean
duration 3.3 years) leg ulcers who had
received non-honey based treatments with
no improvement were included in this study.
A honey gel dressing was applied twice a
week as the only treatment.
Results: Seven patients experienced com-
plete healing of their leg ulcers. The remain-
ing three patients showed a significantreduction in wound size, which was achieved
in a mean time of 101 days (range 28-174
days).
Conclusion:Honey-based dressings appear
to be an efficient and easy to use treatment
for leg ulcers.
Key words: Chronic lower leg ulcer, venous
leg ulcer, dressings, honey gel
INTRODUCTION
Lower leg ulcers affect 15-18 out of 10,000 adults in de-veloped countries, with venous leg ulcers (VLUs) repre-senting up to 84% of all leg ulcer cases (Watson, 2011).These ulcers have an important impact on the quality oflife and health of patients (Cullum, 2000). Treatment ofVLU patients also has a significant economic impact; theannual cost of treatment of VLUs in the UK and Swedenis estimated to be between 1,300-2,500 Euros per patient.Costs increase for lesions with long healing times or forlarger ulcerations, as well as for ulcers that are defined asdifficult to treat (Ragnarson Tennvall, 2005). Difficultto treat cases can cause significant morbidity (Faria, 2011),seriously impact the patients quality of life (Gonzlez-Consuegra, 2011), and consequently increase treatmentcosts.
Evidence-based treatment options for VLUs include legelevation, compression therapy, topical (active) dressings,pentoxifylline, and aspirin therapy. Surgical managementcan be considered for ulcers that are large, of prolongedduration, or refractory to conservative measures (Collins,2010).
In clinical practice surgery is rarely an option due tothe nature of the pathology in the lower limb.
Instead, common treatment options include compres-sion therapy as standard care in combination with a varietyof dressings, although meta-analyses have not yet identi-fied the ideal dressing type (Palfreyman, 2006; OMeara,
2009). The recent resurgence of the use of honey in woundmanagement (Al-Waili, 2011) triggered our prospectivestudy of the efficacy of honey-based treatment in the man-agement of venous leg ulcers.
STUDY DESIGN
In this prospective study we evaluated the efficacy of ahoney gel dressing in a group of patients with difficult totreat VLUs. Patients with lower leg ulcers who presentedat the University Hospital between February and Octo-ber 2010 were recruited for this study. All patients with
chronic lower leg ulcers, regardless of ulcer depth, area,or presence of infection, were included. Patients were ran-domly selected for treatment as outpatients with consul-tation or for inpatient treatment. Exclusion criteria were
Efficacy of honey gelin the treatment of chronic lower
leg ulcers: A prospective study
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Table 1: Clinicopathological characteristics of patients and ulcers
General information Underlying pathology Etiology
2 75 Y F X Polycythemia vera 1 0 0 0 0 X
3 65 Y M Smoker 0 0 1 0 0 X
4 65 Y M X CRI, dialysis,awaiting kidneytransplant
0 0 0 1 0 X
5 75 Y F - 1 0 0 0 0
6 81 Y F X - 1 0 0 0 0 X
7 78 Y F X TEP (pulmonarythromboembolism)
1 0 0 0 0 X
8 57 Y M - 0 0 0 0 posttrauma
9 83 Y M - 1 0 0 0 0 X
10 67 Y F X X - 1 0 0 0 0 X
Y: years old F: female M: male
unlikelihood of wound improvement due to cutaneousnecrotizing vasculitis, lower limb cellulitis, or severe lowerlimb arterial insufficiency.
PATIENTS
The study included ten patients: six females and fourmales with an average age of 73 years (age range 57-83).Underlying pathologies included diabetes mellitus (n=3),hypertension (n=4), and a range of other factors that influ-ence wound healing (Table 1). Seven patients had venousulcers, one had a mixed venous and arterial ulcer, one had apost-trauma ulcer, and one had an ulcer related to diabetesmellitus (Table 1). Standard criteria for the diagnosis ofleg ulceration were used.
Leg ulcers had been present in these patients for anaverage of 3.3 years (range: 2 months-5 years). During thatperiod, patients were treated with a range of products andtechniques in primary care centres without improvement(Tables 2 & 3). For our study, the patients themselvesbefore initiation of the honey gel treatment were used ascontrols. To ensure that application of honey gel was theonly variable, the same wound management regimen that
was followed in the pre-study treatment period was applied
during our study, except that honey gel was now used asa topical dressing (Moghazy, 2010). Patients consentedto the honey gel regimen prior to the start of the study.During the treatment period no compression therapy wasperformed in any patient.
MATERIALS
The honey gel (L-Mesitran Soft, Triticum, NL) used in thisstudy contains 40% medical-grade honey, ultra-purifiedhypoallergenic medical grade lanolin (Medilan), polyethyl-ene glycol, and Vitamins C and E. All of these ingredients
have individual beneficial effects on wound managementand healing (Cutting, 2005) and the honey product as awhole has proven antibacterial efficacy (Stephen-Haynes,2011).
Fig 1. Patient 3. Ulcer pathology before honey gel treatment.
METHODS
Patients were treated only with honey gel. The honey gelwas applied twice weekly d directly over the wound andcovered with a sterile cotton dressing. Compression wasnot used during the period of treatment with the honeygel.
During the observation period the patients were seen
for consultation at weeks 2, 4, and on a monthly basisthereafter. Ulcer size was measured using the Opsite Flexi-gridsystem.
Fig 2. Patient 3. Complete healing of the wound after7 months of honey gel treatment.
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Table 4: Honey gel treatment
Patient#
Initiationoftreatment
Woundsizeat
theend
ofthetreatme
nt(cm
2)
Endofthetreatment
Periodoftreatment
withhoneygel(days)
Reductioninw
oundsize
Foldaccelerat
ionof
healingtime
1 16-06-2010 0 29-09-2010 103 100% 18
2 04-10-2010 8.4 25-11-2010 51 63% 25
3 18-03-2010 0 28-10-2010 220 100% 8
4 25-05-2010 0 01-07-2010 36 100% 20
5 08-02-2010 0 30-05-2010 112 100% 7
6 15-04-2010 0 25-10-2010 190 100% 8
7 15-06-2010 59.7 20-07-2010 35 12% 52
8 18-05-2010 0 16-06-2010 28 100% 29 06-04-2010 0 30-09-2010 174 100% 6
10 26-05-2010 27 26-07-2010 60 50% 18
Table 2: Characteristics of ulcer at initiation of honey treatment
Patie
nt#
Presenceofulcerspriorto
hone
ygeltreatment(years)
Presenceofulcerspriorto
hone
ygeltreatment(days)
Location
Previoustreatments
Woundsizeatthestartof
hone
ygeltreatment(cm
2)
1 5.0 1,825 Lateral, posterior (right side) 1,2,3,4,5 z1
2 3.5 1,278 Left internal malleolus 1,2,3,4,5,9 23
3 5.0 1,825 Left external malleolus 1,2,3,4,5 29,6
4 2.0 730 Injury next to the lap of the 1st metatarsal 4,5,8 1,5
5 2.0 730 Left supramaleolar 1,4,7,10 2,5
6 4.0 1,460 Right external malleolus 1,3,4,6 3,6
7 5.0 1,825 One-third distal right leg, circumferential 3,4,5 67,6
8 0.2 61 One-third distal right leg, anterior 1,2,3,4 1
9 3.0 1,095 Right internal malleolus 3,4 6,9
10 3.0 1,095 Right internal malleolus 1,4,5,9 54,3
Table 3
Previous Treatment
Hydrogel 1
Hydrocolloid 2
Calcium Alginate 3
Allevyn 4
Aquacel AG 5Activated charcoal 6
Fat gauze 7
Vaseline salicylated 10% 8
Silver sulfadiazine 9
HZN Reducol Gel 10
Dermocorticoids (betametasone valerate cream) andemollients were applied to the peri-wound area when nec-essary. No topical or systemic antibiotics were used.
Adverse reactions, including subjective unfavourablesymptoms, were registered when present.
RESULTS
A reduction in wound size was observed in all patients ina mean time of 101 days (range: 28-174 days) (Table 4).Seven patients showed complete healing of the woundand the mean degree of reduction of ulcer extension was90%, ranging from less than 10% to 100% (Table 4).Patient 7, who showed the smallest reduction in woundsize, complained of pain after application of the honey geland abandoned the study.
DISCUSSION
A primary factor contributing to the chronic nature ofVLUs is poly-microbial biofilm infection, where several
bacterial species colonize the wound. The most commonorganisms found in VLU biofilms include various anaer-obes, Staphylococcus (Wolcott, 2009), and Pseudomonasaeruginosa (Jacobsen, 2011). The honey-based productused in our study has a known broad-spectrum antibacte-rial effect, which could have contributed to the acceleratedhealing.In vitro research using antibiotic-resistant clini-cal isolates and extended spectrum b-lactamase (ESBL)-producing strains of bacteria showed that this honey gelis highly effective and has stronger antibacterial activitythan other honey products (Manuka) (Stobberingh, 2010;
Stephen-Haynes, 2011). The efficacy of honey in woundhealing is further attributed to its low pH, its ability to pro-duce hydrogen peroxide, and its osmotic action (Molan,
2006; Stephen-Haynes, 2011). It is particularly importantthat the honey used for wound care is free from residuesand sterilized, because honey can contain clostridial sporesin addition to non-pathogenic Bacillus spp. Only gammairradiation effectively sterilizes honey without reducingits efficacy (Postmes, 1993; Molan, 1996) and the use ofnon-sterilized honey samples cannot be justified (Cooper,2009).
The honey gel used in this study may also have a directpositive effect on wound healing. Du Toit (2009) exam-ined the cell morphological effects of honey- and silver-impregnated dressings on two key cellular componentsof wound healing, keratinocytes and fibroblasts, using an
Science, Practice and Education
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in vitrotissue explant culture model and found that thehoney-impregnated dressings promoted new tissue regen-eration. A second study comparing silver-sulphadiazine
with the honey gel used in our study reported similarfindings; the honey gel significantly stimulated re-epitheli-alisation, whereas silver sulphadiazine significantly reducedit (Boekema, 2013). In support of these findings, Rossiteret al.(2010) showed that honey products stimulated an-giogenesis in vitroin an investigation of the influence ofhoney on growth of the tubular length of rat aorta.
Several previous studies (Table 5, 601 patients) have re-ported that honey-based wound management has positiveeffects on wound healing, ulcer size, and patient comfort.
However, when compared to standard methods or othercomparative methods, honey has not been shown to su-perior to these methods significant difference in woundhealing. This might reflect the type of honey used in thesestudies (Jull, 2008), the study design (Firth, 2010), andthe complexity of VLU management.
However,we did see a significant improvement inwound healing in our study. The patients previous treat-ments were less effective (Table 2) than honey treatment(Table 4), with an observed shortening of healing timefrom an average of 3.3 years to 101 days. The honey gel
was used in monotherapy. Only emollients and, whenindicated, topical corticosteroids were allowed as comple-mentary treatment on the peri-ulcerous skin, and in nocircumstance were antibiotics or antiseptics used.
Table 5: Previous studies on the efficacy of honey in VLU tretament
Author Type of studyNumber
of patientsStudyperiod
Outcome
Olabanji (2000) Comparative study 50 4 weeks Reduction in wound size was significantly different.
Natarajan(2001)
Case report 1 untilhealing
MRSA was eradicated from the ulcer and rapidhealing was successfully achieved.
Alcaraz(2002)
Case report 1 untilhealing
The patients wounds improved with thehoney-based dressing.
Dunford (2004) Four-centre feasibility 40 12 weeks Overall, ulcer pain and size decreased significantly,and odorous wounds were deodorised promptly.
Schumacher(2004)
Case report 6 untilhealing
No significant difference from conventional methodsrecorded.
van der Weyden(2005)
Case report 1 untilhealing
Honey was found to be an effective antibacterial,anti-inflammatory, and deodorizing dressing,with total healing of the ulcer achieved.
Timmons(2008)
Case report 1 untilhealing
Honey promoted the removal of slough, encouragingthe formation of granulation tissue and epithelialtissue growth
Jull (2008) Community-based, open-labelrandomised trial
368 12 weeks Honey-impregnated dressings promoted healing,however, not significantly more than usual care.
Sare (2008) Case report 3 untilhealing
Promotion of healing occurred in all instances witha reduction in the incidence of infection, reductionin pain, and the provision of comfort.
Gethin (2009) Prospective, multicentre, openlabel randomised controlled trial
108 12 weeks Increased incidence of healing, effectivedesloughing, and a lower incidence of infectionthan the control.
Kegels (2011) Retrospective study 22 untilhealing
Infected wounds were controlled within a few days.All the wounds progressed to healing without anyadverse effects.
Similar results were obtained in a recent retrospectivestudy in which 22 patients with lower extremity ulcera-tions had delayed healing, in part attributed to applicationof povidone iodine or fusidic acid, and 50% of the wounds
were infected. After treatment with honey-based products,all cases progressed to healing (Kegels, 2011).The use ofhoney may therefore have a place in VLU treatment (Jull,2013). Antibiotics are not recommended because there isno evidence that the routine use of systemic antibioticspromotes VLU healing. In addition, in light of the in-creasing problem of bacterial resistance to antibiotics, cur-rent prescribing guidelines recommend that antibacterialpreparations should only be used in cases of clinical infec-tion and not for bacterial colonisation (OMeara, 2010).
Honey gel treatment may also be superior to traditionaltreatments because it is easier for patients to administer.The patients in our study showed low compliance withcompression bandage treatment during the pre-studytreatment period because a lack of local health facilities,advanced patient age, and the low economic status of thepatients often precluded maintenance of correct compres-sion treatment. In contrast, application of honey gel to the
wound surface was easy and could be accomplished by thepatients themselves or by a relative without specialisedskills, as previously reported (Smaropoulos, 2011). Pa-
tients were therefore able to follow the treatment protocolprovided no adverse effects occurred.Another advantage of honey-based treatment is that
it requires fewer materials and the procedure is less time
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consuming than traditional methods, which has the po-tential to reduce treatment costs. The reduction in healthcare costs might be expected when the faster healing timesare taken into consideration. In addition, although thepresent study did not analyse quality of life data, the pa-tients welcomed the faster wound healing with honey-based treatment. We therefore believe that honey-basedtreatments of VLUs should be more seriously consideredfor the treatment of leg ulcer patients.
Limitations
The small number of patients and the use of the patientsthemselves as the treatment controls are limitations of thisstudy.
CONCLUSION
We believe that honey gel treatment may provide a practi-cal and well-tolerated treatment for the management oflower leg venous ulcers, particularly when patient compli-ance with compression therapy is poor.
Acknowledgement
The authors wish to thank the patients who volunteeredin this study.
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Ragnarson Tennvall G, Hjelmgren J (2005) Annual costsof treatment for venous leg ulcers in Sweden and the
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Rossiter K, Cooper AJ, Voegeli D, Lwaleed B (2010)Honey promotes angiogeneic activity in the rat aortic ringassay.Journal of Wound Care 19(10):440-446
Sare JL (2008) Leg ulcer management with topicalmedical honey. Br J Community Nurs.13(9):S22, S24,S26 passim.
Schumacher HH (2004) Use of medical honey in patientswith chronic venous leg ulcers after split-skin grafting.JWound Care13(10):451-2
Smaropoulos E, Romeos S, Dimitriadou C (2011) Honey-based therapy for paediatric burns and dermal traumacompared to standard hospital protocol. Wounds UK7(1):33-40
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