Conditions Associated with Leukocytosis in a Tertiary Care Hospital, with Particular Attention to the Role of Infection Caused by Clostridium difficile

Few modern studies have enumerated the conditions associated with leukocytosis. Our clinical experience has implicated Clostridium difficile infection in a substantial proportion of patients with leukocytosis. In a prospective, observational study of 400 inpatients with WBC counts of ⩾15,000 cells/m...

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Veröffentlicht in:Clinical infectious diseases 2002-06, Vol.34 (12), p.1585-1592
Hauptverfasser: Wanahita, Anna, Goldsmith, Elizabeth A., Musher, Daniel M.
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Musher, Daniel M.
description Few modern studies have enumerated the conditions associated with leukocytosis. Our clinical experience has implicated Clostridium difficile infection in a substantial proportion of patients with leukocytosis. In a prospective, observational study of 400 inpatients with WBC counts of ⩾15,000 cells/mm3, we documented ⩾1 infection in 207 patients (53%). Of these 207 patients, 97 (47%) had pneumonia, 60 (29%) had urinary tract infection, 34 (16%) had soft-tissue infection, and 34 (16%) had C. difficile infection. C. difficile infection was present in 25% of patients with WBC counts of µ30,000 cells/mm3 who did not have hematological malignancy. Other causes of leukocytosis in the 400 patients included physiological stress, in 152 patients (38%); medications or drugs, in 42 (11%); hematological disease, in 22 (6%); and necrosis or inflammation, in 22 (6%). C. difficile infection is a prominent cause of leukocytosis and this diagnosis should be considered for patients with WBC counts of ⩾15,000 cells/mm3, even in the absence of diarrheal symptoms.
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Our clinical experience has implicated Clostridium difficile infection in a substantial proportion of patients with leukocytosis. In a prospective, observational study of 400 inpatients with WBC counts of ⩾15,000 cells/mm3, we documented ⩾1 infection in 207 patients (53%). Of these 207 patients, 97 (47%) had pneumonia, 60 (29%) had urinary tract infection, 34 (16%) had soft-tissue infection, and 34 (16%) had C. difficile infection. C. difficile infection was present in 25% of patients with WBC counts of µ30,000 cells/mm3 who did not have hematological malignancy. Other causes of leukocytosis in the 400 patients included physiological stress, in 152 patients (38%); medications or drugs, in 42 (11%); hematological disease, in 22 (6%); and necrosis or inflammation, in 22 (6%). 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subjects Adult
Bacterial diseases
Bacterial diseases of the digestive system and abdomen
Biological and medical sciences
Clostridium difficile
Colitis
Diarrhea
Enterocolitis, Pseudomembranous - complications
Enterocolitis, Pseudomembranous - microbiology
Hospitalization
Human bacterial diseases
Humans
Infections
Infectious diseases
Inflammation
Leukocyte Count
Leukocytosis
Leukocytosis - complications
Leukocytosis - microbiology
Major Articles
Male
Medical sciences
Medications
Necrosis
Outpatients
Physiological stress
Prospective Studies
Stress, Physiological - etiology
Toxins
title Conditions Associated with Leukocytosis in a Tertiary Care Hospital, with Particular Attention to the Role of Infection Caused by Clostridium difficile
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