Fever of Unknown Origin — Causes of FUO in Infants and Children
Citation(s)
Antoon JW, Knudson-Johnson M, Lister WM Diagnostic approach to fever of unknown origin. Clin Pediatr (Phila). 2012 Nov;51(11):1091-4. doi: 10.1177/0009922811431160. Epub 2011 Dec 12.
Attard L, Tadolini M, De Rose DU, Cattalini M Overview of fever of unknown origin in adult and paediatric patients. Clin Exp Rheumatol. 2018 Jan-Feb;36 Suppl 110(1):10-24. Epub 2018 May 3. Review.
Chien YL, Huang FL, Huang CM, Chen PY Clinical approach to fever of unknown origin in children. J Microbiol Immunol Infect. 2017 Dec;50(6):893-898. doi: 10.1016/j.jmii.2015.08.007. Epub 2015 Oct 9.
Hassan RH, Fouda AE, Kandil SM Fever of Unknown Origin in Children: A 6 year- Experience in a Tertiary Pediatric Egyptian Hospital. Int J Health Sci (Qassim). 2014 Jan;8(1):13-9.
Causes of Fever of Unknown Origin (FUO) in Infants and Children Attending Assiut University Children Hospital (AUCH)
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
