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An In Vitro Model for Studying Cellular Transformation by Kaposi Sarcoma Herpesvirus
Published on: August 25, 2017
Cellulitis in patients with chronic lower-limb lymphedema due to HIV-related Kaposi sarcoma
Patricia Volkow-Fernández1, Beda Islas-Muñoz1, Pamela Alatorre-Fernández1
1Department of Infectious Diseases, 42597Instituto Nacional de Cancerología (INCan), México.
Insights
Chronic lower limb lymphedema (CL-LL) from Kaposi sarcoma (KS) increases cellulitis risk and complications. Antimicrobial prophylaxis may prevent severe outcomes in these HIV patients.
Area of Science:
- Oncology
- Infectious Diseases
- Dermatology
Background:
- Chronic lower limb lymphedema (CL-LL) secondary to Kaposi sarcoma (KS) is not widely recognized as a cellulitis risk factor.
- Kaposi sarcoma (KS) is an AIDS-defining malignancy that can cause significant morbidity.
Purpose of the Study:
- To describe the clinical spectrum of cellulitis in patients with CL-LL due to KS.
- To evaluate the use and effectiveness of antimicrobial prophylaxis in preventing cellulitis complications.
Main Methods:
- Retrospective study of HIV patients with KS and CL-LL experiencing cellulitis at a Mexican cancer clinic (2004-2019).
- Data collection included demographic, clinical factors, and outcomes such as hospitalization, recurrence, and mortality.
Main Results:
- Thirty-nine male patients with CL-LL were analyzed. Key factors associated with cellulitis included lymph-node KS infiltration, fungal infections, and ulcerated lesions.
- High rates of hospitalization (46.1%) and recurrence (35.8%) were observed. Mortality occurred in 25.3% of patients, including cases of toxic shock syndrome and septic shock.
- Patients receiving antimicrobial prophylaxis (64.1%) experienced significantly fewer unfavorable outcomes (hospitalization, recurrence) compared to those without prophylaxis.
Conclusions:
- CL-LL due to KS is a significant risk factor for cellulitis and severe complications, particularly in patients with prolonged life expectancy.
- Antimicrobial prophylaxis demonstrates potential in preventing serious complications and should be further investigated in this patient population.
Objective:
Chronic Lower Limb Lymphedema (CL-LL) secondary to Kaposi sarcoma (KS) has not been recognized as a risk factor for cellulitis. The aim was to describe the clinical spectrum and use of antimicrobial prophylaxis in patients with cellulitis and CL-LL due to KS.
Methods:
HIV patients with KS, CL-LL, and at least one episode of cellulitis seen at the AIDS Cancer Clinic at INCan in Mexico from 2004 to 2019 were included. Demographic and clinical data were obtained from medical records.
Results:
Thirty-nine men all with CL-LL were included. Clinical factors associated with cellulitis were groin and/or lymph-node KS infiltration (69.2%), onychomycosis and/or tinea pedis (44.7%), ulcerated lesions (38.4%), and obesity (2.5%). Eighteen (46.1%) were hospitalized in the first episode and eight (20.5%) in recurrence. Six (25.3%) died, two of toxic shock syndrome (TSS), and one of septic shock. Fourteen (35.8%) had at least one recurrent episode of cellulitis. Twenty-five (64.1%) received prophylaxis. Patients without prophylaxis had significantly more unfavorable outcomes (hospitalization and recurrences) than those with prophylaxis.
Conclusions:
CL-LL due to KS is a risk factor for cellulitis and severe complications in patients with a long life expectancy. Antimicrobial prophylaxis needs to be explored as it could prevent complications.
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