Infectious complications to granulocytopenia

Area of Science:

• Infectious Diseases
• Hematology
• Clinical Microbiology

Background:

• Granulocytopenia, a condition characterized by a low count of granulocytes, significantly increases susceptibility to infections.
• Understanding the spectrum and rate of infectious complications is crucial for managing patients with granulocytopenia.

Purpose of the Study:

• To analyze the rate and spectrum of infectious complications in a series of patients with granulocytopenia.
• To identify common pathogens and risk factors associated with infection and septicemia in this patient group.

Main Methods:

• Retrospective analysis of medical records from 98 patients with granulocytopenia treated between 1975 and 1981.
• Detailed review of infectious manifestations, isolated pathogens, and clinical parameters such as fever and cell counts.

Main Results:

• Fever was the most common infection symptom, with 78% of patients experiencing infectious manifestations.
• Staphylococcus aureus was the most frequently isolated pathogen. Gram-negative bacteria caused 17 of 22 septicemia cases, including 8 by Pseudomonas aeruginosa.
• Increased risk of septicemia correlated with decreased cell count and higher fever severity/duration.

Conclusions:

• Patients with granulocytopenia face a high risk of infectious complications, necessitating vigilant monitoring and management.
• Septicemia, particularly from gram-negative bacteria, is a significant threat, with outcomes worsening with lower granulocyte counts and prolonged fever.
• The overall mortality rate was 24%, rising to 41% for patients with septicemia, highlighting the severity of these infections.