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Differential Effects of Bacteria Colonising Venous Leg Ulcers on Pain and Healing Rates

Differential Effects of Bacteria Colonising Venous Leg Ulcers on Pain and Healing Rates

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04249661
Enrollment
100
Registered
2020-01-31
Start date
2020-01-09
Completion date
2023-12-14
Last updated
2023-12-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Venous Leg Ulcer

Brief summary

This Study aims to identify whether venous leg ulcers which are colonised by Pseudomonas Aeruginosa cause more pain than those which are not and if this bacteria affects healing time. This may determine how venous ulcer infections are treated in order to improve symtomatology and quality of life for patients with these chronic wounds.

Detailed description

Pseudomonas is a gram-negative bacillus which commonly colonises lower limb venous ulcers. It produces exotoxins and elastase as well as forming biofilms within chronic wounds. Its effects on venous ulcer healing are debated. The objective of this study is to examine the effects on Pseudomonas Aeruginosa colonisation on the pain expereinces and healing rates of venous leg ulcers.

Interventions

None listed

Sponsors

University Hospital of Limerick
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. All patients age 18+ with lower limb venous ulcers as diagnosed on clinical history and examination. 2. Are willing and capable to voluntarily sign a statement of informed consent to take part in this study. 3. With an ABPI of \>/= 0.8 and/or palpable pedal pulses on clinical exam. 4. Without evidence (either clinical or diagnostic) of other causes of lower limb ulceration, namely vasculitis, local dermopathology, congenital syndromes or arterial insufficiency (see above). 5. If equipoise or disagreement between two independent clinicians exist, The ultimate decision as to inclusion/exclusion will be made by the P.I

Exclusion criteria

1. Patients unable to provide informed consent. 2. Patients under the age of 18 3. Patients with arterial insufficiency manifesting as ABPI's of \<0.8 4. Known or suspected alternate likely primary cause of lower limb ulceration (vasculitis, dermatological disease, underlying congenital syndrome). 5. Patients who are deemed unsuitable due to any circumstances as deemed appropriate by the P.I.

Design outcomes

Primary

MeasureTime frameDescription
Pain burden of venous ulcers colonised by Pseudomonas Aeruginosa1 yearPain will be examined with respect to underlying microbiota detected by wound culture and sensitivity. The Brief Pain Inventory (Short Form) will be used for assessment purposes.
Presentations and Admissions1 yearRates of re-presentation for treatment with respect to underlying wound culture and sensitivity. Number of patient visits to the Vascular Clinic for treatment will be measured.

Secondary

MeasureTime frameDescription
Analgesia Requirements1 yearNumber of participants with pain requiring analgesia will be recorded.

Countries

Ireland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026