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.
Abstract

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