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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03846635
Other study ID # 2019-4850
Secondary ID
Status Completed
Phase
First received
Last updated
Start date August 28, 2018
Est. completion date January 31, 2020

Study information

Verified date September 2020
Source McGill University Health Centre/Research Institute of the McGill University Health Centre
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

It can be difficult to differentiate cellulitis from non-infectious mimics, like venous stasis. One way of determining the difference is feeling skin surface temperature. However, this is a subjective measure that is inherently unreliable. It might be possible to objectify this measurement by using a non-contact infrared thermometer at the bedside.

The goal of this study is therefore to assess whether objective difference in skin surface temperature in an area of suspected cellulitis, relative to non-affected skin, has diagnostic utility. It will use the diagnosis of cellulitis by an infectious diseases physician as the gold standard and compare blinded temperature difference between affected and unaffected limbs to that standard. It is hypothesized that measurement of skin surface temperature by non-contact infrared thermometer will help differentiate cellulitis from many non-infectious conditions that mimic cellulitis.

For patients who are hospitalized, the study also plans to see whether a change in this temperature difference is predictive of response to treatment when compared to the FDA standard for early response and patient reported symptoms.

This is a pragmatic, prospective cohort study. Patients with suspected cellulitis who receive an infectious diseases consult (in the emergency room or urgent clinic) will be approached for consent and enrollment. The goal is to enroll approximately 50 patients with a minimum of 10-15 cases of non-cellulitis.

These measurements will not be made available to the treating teams. This is an observational study only comparing the potential value of these measurements to usual clinical care.


Recruitment information / eligibility

Status Completed
Enrollment 52
Est. completion date January 31, 2020
Est. primary completion date January 31, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Age 18 years or older;

- English or French-speaking;

- Received an infectious diseases consultation to evaluate proven or suspected cellulitis of the upper or lower extremity, either unilaterally or bilaterally;

- Either no empiric antimicrobials received or, at most, antimicrobials begun within 24 hours of notification for enrollment.

Exclusion Criteria:

- Presumptive diagnosis of a soft tissue infection of the trunk, head or neck that does not also involve a limb;

- Patients with only one limb;

- Patients with significant neuropathies or autonomic syndromes that might affect thermoregulation, such as severe diabetic neuropathy or diabetic dysautonomia, neurologic neoplasms and known vitamin deficiencies;

- Soft tissue infections requiring definitive surgical source control, such as abscesses or necrotizing fasciitis.

- Septic arthritis

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
Canada McGill University Health Centre Montreal Quebec

Sponsors (1)

Lead Sponsor Collaborator
McGill University Health Centre/Research Institute of the McGill University Health Centre

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary Difference in skin temperature between affected and contra-lateral limb The difference in skin surface temperature measured at the site of suspected cellulitis versus the same location on the contra-lateral limb will be compared to the treating physician's diagnosis of cellulitis/not cellulitis. Skin temperature measurement at time of enrolment
Secondary Change in Skin Temperature For patients who are hospitalized for antibiotic therapy, skin surface temperature of the affected area will be measured on a daily basis. Serial measurements daily until (a) discharge or (b) cure of cellulitis whichever comes first up to a maximum of 14 days
Secondary Change in Maximal Dimensions of Cellulitis For patients who are hospitalized for antibiotic therapy, cellulitis length and width dimensions (FDA early response criteria for cellulitis) will be measured on a daily basis. Serial measurements daily until (a) discharge or (b) cure of cellulitis whichever comes first up to a maximum of 14 days
Secondary Clinical symptoms of cellulitis as measured by the patient global impression of change scale Patient global impression of change scale (PGIC) as compared to their initial presentation. PGIC is a 7 point scale depicting a patient's rating of overall improvement. Patients rate their change as "very much improved," "much improved," "minimally improved," "no change," "minimally worse," "much worse," or "very much worse." Serial evaluations daily until (a) discharge or (b) cure of cellulitis whichever comes first up to a maximum of 14 days
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