Book contents
- Frontmatter
- Contents
- Preface
- Contributors
- Part I Clinical Syndromes – General
- Part II Clinical Syndromes – Head and Neck
- Part III Clinical Syndromes – Eye
- Part IV Clinical Syndromes – Skin and Lymph Nodes
- Part V Clinical Syndromes – Respiratory Tract
- Part VI Clinical Syndromes – Heart and Blood Vessels
- Part VII Clinical Syndromes – Gastrointestinal Tract, Liver, and Abdomen
- Part VIII Clinical Syndromes – Genitourinary Tract
- Part IX Clinical Syndromes – Musculoskeletal System
- Part X Clinical Syndromes – Neurologic System
- Part XI The Susceptible Host
- 83 Evaluation of Suspected Immunodeficiency
- 84 Infections in the Neutropenic Patient
- 85 Infections in Patients with Neoplastic Disease
- 86 Corticosteroids, Cytotoxic Agents, and Infection
- 87 Infections in Transplant Patients
- 88 Diabetes and Infection
- 89 Infectious Complications in the Injection Drug User
- 90 Infections in the Alcoholic
- 91 Infections in the Elderly
- 92 Neonatal Infection
- 93 Pregnancy and the Puerperium: Infectious Risks
- 94 Dialysis-Related Infection
- 95 Overwhelming Postsplenectomy Infection
- Part XII HIV
- Part XIII Nosocomial Infection
- Part XIV Infections Related to Surgery and Trauma
- Part XV Prevention of Infection
- Part XVI Travel and Recreation
- Part XVII Bioterrorism
- Part XVIII Specific Organisms – Bacteria
- Part XIX Specific Organisms – Spirochetes
- Part XX Specific Organisms – Mycoplasma and Chlamydia
- Part XXI Specific Organisms – Rickettsia, Ehrlichia, and Anaplasma
- Part XXII Specific Organisms – Fungi
- Part XXIII Specific Organisms – Viruses
- Part XXIV Specific Organisms – Parasites
- Part XXV Antimicrobial Therapy – General Considerations
- Index
88 - Diabetes and Infection
from Part XI - The Susceptible Host
Published online by Cambridge University Press: 05 March 2013
- Frontmatter
- Contents
- Preface
- Contributors
- Part I Clinical Syndromes – General
- Part II Clinical Syndromes – Head and Neck
- Part III Clinical Syndromes – Eye
- Part IV Clinical Syndromes – Skin and Lymph Nodes
- Part V Clinical Syndromes – Respiratory Tract
- Part VI Clinical Syndromes – Heart and Blood Vessels
- Part VII Clinical Syndromes – Gastrointestinal Tract, Liver, and Abdomen
- Part VIII Clinical Syndromes – Genitourinary Tract
- Part IX Clinical Syndromes – Musculoskeletal System
- Part X Clinical Syndromes – Neurologic System
- Part XI The Susceptible Host
- 83 Evaluation of Suspected Immunodeficiency
- 84 Infections in the Neutropenic Patient
- 85 Infections in Patients with Neoplastic Disease
- 86 Corticosteroids, Cytotoxic Agents, and Infection
- 87 Infections in Transplant Patients
- 88 Diabetes and Infection
- 89 Infectious Complications in the Injection Drug User
- 90 Infections in the Alcoholic
- 91 Infections in the Elderly
- 92 Neonatal Infection
- 93 Pregnancy and the Puerperium: Infectious Risks
- 94 Dialysis-Related Infection
- 95 Overwhelming Postsplenectomy Infection
- Part XII HIV
- Part XIII Nosocomial Infection
- Part XIV Infections Related to Surgery and Trauma
- Part XV Prevention of Infection
- Part XVI Travel and Recreation
- Part XVII Bioterrorism
- Part XVIII Specific Organisms – Bacteria
- Part XIX Specific Organisms – Spirochetes
- Part XX Specific Organisms – Mycoplasma and Chlamydia
- Part XXI Specific Organisms – Rickettsia, Ehrlichia, and Anaplasma
- Part XXII Specific Organisms – Fungi
- Part XXIII Specific Organisms – Viruses
- Part XXIV Specific Organisms – Parasites
- Part XXV Antimicrobial Therapy – General Considerations
- Index
Summary
Diabetes mellitus is a very prevalent disorder, affecting more than 21 million Americans, with a larger population having prediabetes, such as abnormal glucose tolerance test (˜22 million). More than 90% of diabetic patients have type 2 diabetes. Microvascular and macrovascular complications are related to blood glucose control and disease duration and are more commonly seen in the elderly.
Diabetic patients are also at risk for infections (Table 88.1); approximately 50% of diabetic patients will have at least one hospital admission or outpatient visit for infection. Certain infections (ie, respiratory and foot infections) are overrepresented in the diabetic population and are associated with a higher risk of infection-related mortality.
PREDISPOSING FACTORS TO INFECTION
The abnormalities in host defense mechanisms in diabetic patients are related to uncontrolled diabetes. Hyperglycemia alters host immune response and has been implicated in disorders of immune function by alteration of polymorphonuclear leukocyte (PML) chemotaxis, phagocytosis, and decreased intracellular bactericidal activities. The effect of hyperglycemia on phagocytic activity is associated with an increase in cytosolic calcium and is reversible with the improvement of blood glucose level. There are other metabolic imbalances, which impair the immune system, such as presence of acidemia, reported to be reversed with the normalization of the pH. In addition, presence of chronic inflammatory changes may contribute to the metabolic imbalances (ie, via increased cytokines).
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- Information
- Clinical Infectious Disease , pp. 625 - 630Publisher: Cambridge University PressPrint publication year: 2008