Individuals with postural orthostatic tachycardia syndrome share many symptoms with those who have chronic fatigue syndrome; one of which is severe fatigue. Previous literature found that those with chronic fatigue syndrome experience many forms of fatigue. The goal of this study was to investigate whether individuals with postural orthostatic tachycardia syndrome also experience multidimensional fatigue and whether these individuals can be clustered into subgroups based on the types of fatigue they endorse. A convenience sample of 138 participants (aged 14-29) with postural orthostatic tachycardia syndrome completed questionnaires that assessed fatigue, brain fog symptom severity, activities that improve brain fog, and brain fog-related disability. An exploratory factor analysis was conducted on the Fatigue Types Questionnaire, and a three-factor solution was produced. Factor scores were then used to cluster the patients into groups using a TwoStep cluster analysis. This resulted in two clusters, a high severity group and a low severity group. The clusters were then compared on a number of items related to symptom expression. Individuals within the more severe cluster had significantly more brain fog at the beginning and end of the survey when compared to cluster two. Those in the more severe cluster also described more activity impairment as well as more frequent, more severe, and more debilitation from postural orthostatic tachycardia syndrome and brain fog. The findings of the factor analysis suggest that patients with postural orthostatic tachycardia syndrome experience fatigue as a multidimensional construct and they also can be subgrouped based on symptom severity.
Background Use of complementary and alternative medicine (CAM) is common among patients with chronic fatigue syndrome (CFS), but whether it is viewed as more or less effective than traditional medicine is unclear Purpose To evaluate patients’ level of functioning based on the types of treatments they report using (i.e., traditional-only, CAM-only, or a combination of both). Methods Participants were recruited from physician referrals and media sources (newspaper, support groups), and 97 participants were retained for this analysis. Based on self-report, individuals were divided into three groups: using CAM-only (N=27), traditional medicine-only (N=22), or a combination of both treatments (N=58). Results Social functioning was significant (p<.01), with post-hoc analyses indicating significantly better social functioning for individuals taking CAM-only in comparison to patients using traditional-only or a combination of traditional and CAM treatments. Significantly fewer participants (p<.01) using CAM-only had a current psychiatric diagnosis. Conclusions These findings suggest using CAM-only treatments in CFS is associated with higher social functioning and fewer current psychiatric diagnoses. The results support the need for research to fully evaluate how CAM may affect functioning among individuals with CFS.
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