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Postoperative fever
Renzo Dionigi1, Gianlorenzo Dionigi, Francesca Rovera
1Department of Surgical Sciences, University of Insubria, Varese, Italy.
Background:
Fever is common in surgical patients. The list of potential causes is long and includes many noninfective etiologies.
Causes:
Only about 40% of fever episodes in hospitalized patients are caused by infection. Any fever in a surgical patient is a cause for concern. New or continuing fever more than three days after surgery should raise a strong suspicion of persistent illness or a new complication. On rare occasions, these fevers can be attributed to potentially life-threatening occult infections, including acute cholecystitis, antibiotic-related pseudomembranous colitis, systemic candidiasis, or transfusion-related cytomegalovirus disease. A change in the microbiology of postoperative infections has also been noticed, characterized by a greater incidence of infections caused by methicillin-resistant Staphylococcus aureus, by polymicrobial flora, and by fungi.
Treatment:
Control of nosocomial infections has become more challenging recently because of widespread bacterial resistance to antibiotics and to more frequent surgical indications in elderly patients at higher risk. Early recognition and appropriate treatment of these infections relieves anxiety, reduces hospital costs, and increases patient survival rates.
Conclusions:
The workup and therapy for the individual patient may differ, depending on the underlying disease and clinical appearance and the clinician's suspicion for infection. Subsequent testing should be based on the clinical findings. Perhaps more money is wasted in the evaluation of early postoperative fever than on any other aspect of postoperative care.
Insights
Postoperative fever in surgical patients often has noninfective causes. Early recognition and appropriate treatment of infections are crucial for better outcomes and reduced costs.
Area of Science:
- Medical Science
- Surgical Patient Care
- Infectious Disease
Background:
- Fever is a frequent occurrence in surgical patients, with numerous potential noninfective origins.
- While infection is a concern, noninfective etiologies are common causes of fever in hospitalized individuals.
Purpose of the Study:
- To highlight the diverse causes of postoperative fever.
- To emphasize the importance of early recognition and management of infections in surgical patients.
- To discuss the challenges and economic implications of evaluating postoperative fever.
Main Methods:
- Review of potential causes of fever in surgical patients, including infective and noninfective etiologies.
- Discussion of changing microbiological patterns in postoperative infections, such as increased incidence of methicillin-resistant Staphylococcus aureus and fungal infections.
- Consideration of factors complicating infection control, including antibiotic resistance and high-risk elderly patients.
Main Results:
- Only approximately 40% of fever episodes in hospitalized patients stem from infection.
- New or persistent fever beyond three days post-surgery warrants suspicion for complications or occult infections.
- Emerging trends in postoperative infections include polymicrobial flora and fungal pathogens.
Conclusions:
- The diagnostic workup and therapeutic approach for postoperative fever should be individualized based on clinical presentation and suspicion of infection.
- Clinical findings should guide subsequent diagnostic testing to avoid unnecessary expenditure.
- Effective management of postoperative infections is vital for patient survival, cost reduction, and alleviating patient anxiety.
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