Related Experiment Video
Updated: Feb 15, 2026

Whole-body PET/MRI of Pediatric Patients: The Details That Matter
Published on: December 19, 2017
Fatigue in pediatric patients with familial Mediterranean fever
Semanur Özdel1, Z Birsin Özçakar1, Nilgün Cakar1
1a Department of Pediatrics, Division of Pediatric Rheumatology , Ankara University School of Medicine , Ankara , Turkey.
Insights
Fatigue is a common issue for patients with Familial Mediterranean Fever (FMF), often overlooked. This study found FMF patients experience significant fatigue, similar to other chronic rheumatic diseases.
Area of Science:
- Rheumatology
- Pediatric Rheumatology
- Internal Medicine
Background:
- Familial Mediterranean Fever (FMF) presents with recurrent fever and serositis.
- Fatigue is prevalent in pediatric rheumatic diseases but understudied in FMF.
- Systematic evaluation of fatigue in FMF patients is lacking.
Purpose of the Study:
- To assess fatigue levels in adolescent and young adult FMF patients.
- To identify factors associated with fatigue in FMF.
- To compare fatigue in FMF patients with other chronic rheumatic diseases and healthy controls.
Main Methods:
- A cohort of 111 FMF patients (aged 10-21) completed the Checklist Individual Strength-20 (CIS-20) fatigue questionnaire.
- Control groups included 54 patients with other chronic rheumatic diseases and 79 healthy children.
- Statistical analysis compared fatigue scores between groups and explored associated factors.
Main Results:
- FMF patients reported fatigue levels comparable to those with other chronic rheumatic diseases.
- Both FMF and other chronic rheumatic disease groups exhibited significantly higher fatigue scores than healthy controls.
- FMF patients with musculoskeletal complaints reported more severe subjective fatigue.
Conclusions:
- Fatigue is a frequent and often unrecognized symptom in FMF patients.
- FMF may present as a chronic condition with persistent symptoms between acute attacks.
- Addressing fatigue is crucial for comprehensive FMF management.
Objectives:
Familial Mediterranean fever (FMF) is characterized by recurrent, self-limited attacks of fever with serositis involving the peritoneum, pleura and joints. Fatigue is a common problem in many pediatric rheumatic diseases; however, has not been evaluated systematically in FMF patients. Accordingly, the aim of this study was to evaluate fatigue and its possible allied factors in patients with FMF.
Methods:
Patients with FMF, aged between 10 and 21 years, were assessed by completed validated fatigue questionnaire (Checklist Individual Strength-20). As a control group, patients with chronic rheumatic diseases and healthy children without any chronic disease were included.
Results:
The study group comprised 111 patients with FMF, 54 with other chronic rheumatic diseases and 79 healthy subjects. While the CIS-20 total score and subscale scores (including subjective experience of fatigue) were similar between patients with FMF and those with other chronic rheumatic diseases (p > .05); both groups had significantly higher scores when compared with healthy subjects (p < .05). FMF patients with musculoskeletal complaints had significantly higher scores of subjective experiences of fatigue when compared to those without those complaints.
Conclusions:
Fatigue is a common but unrecognized complaint in patients with FMF. Familial Mediterranean fever seems to be a chronic disease with inter attack ongoing complaints.
Related Concept Videos
Pharmacokinetics in Pediatric Patients: Drug Excretion
Protein Families
Gene Families
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
Pharmacokinetics in Pediatric Patients: Drug Distribution
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

