[Fever--useful or noxious symptom that should be treated?]

Area of Science:

• Evolutionary Biology
• Immunology
• Pharmacology

Background:

• Fever is an ancient host defense mechanism conserved through evolution.
• Both poikilothermic and endothermic organisms utilize fever for host defense.
• Despite its evolutionary advantage, fever is commonly treated with antipyretics.

Purpose of the Study:

• To evaluate the role and efficacy of antipyretic therapy in various clinical settings.
• To assess the benefits and risks of fever management in different patient populations.
• To provide evidence-based recommendations for antipyretic use.

Main Methods:

• Review of existing studies on fever and antipyretic use.
• Analysis of clinical trials, including those in intensive care settings and specific patient groups.
• Consideration of experimental findings in rodents versus human clinical observations.

Main Results:

• Antipyretic therapy has a marginal role in recovery from low-risk infections.
• A large study on ibuprofen in severe sepsis showed no clear benefit or harm.
• Non-steroidal antirheumatics (NSAR) improve well-being in influenza-like illnesses with minimal side effects.
• Antipyretic use is not established as beneficial in special patient groups (e.g., brain injury, cardiac failure).
• Fever reduction does not decrease recurrence in children with a history of febrile convulsions.
• Antipyretics may be advisable for fever in stroke patients, despite a lack of proven benefit.

Conclusions:

• Symptomatic antipyretic therapy is appropriate for low-risk infections if fever causes suffering.
• For severe infections, antipyretic therapy can be used individually, with caution regarding outcome.
• The evolutionary advantage of fever suggests a nuanced approach to its management.