Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence

<p>Abstract</p> <p>Background</p> <p>A waterborne outbreak of Giardia lamblia gastroenteritis led to a high prevalance of long-lasting fatigue and abdominal symptoms. The aim was to describe the clinical characteristics, disability and employmentloss in a case series of...

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Main Authors: Naess Halvor, Nyland Morten, Hausken Trygve, Follestad Inghild, Nyland Harald I
Format: Article
Language:English
Published: BMC 2012-02-01
Series:BMC Gastroenterology
Online Access:http://www.biomedcentral.com/1471-230X/12/13
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author Naess Halvor
Nyland Morten
Hausken Trygve
Follestad Inghild
Nyland Harald I
author_facet Naess Halvor
Nyland Morten
Hausken Trygve
Follestad Inghild
Nyland Harald I
author_sort Naess Halvor
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>A waterborne outbreak of Giardia lamblia gastroenteritis led to a high prevalance of long-lasting fatigue and abdominal symptoms. The aim was to describe the clinical characteristics, disability and employmentloss in a case series of patients with Chronic Fatigue Syndrome (CFS) after the infection.</p> <p>Methods</p> <p>Patients who reported persistent fatigue, lowered functional capacity and sickness leave or delayed education after a large community outbreak of giardiasis enteritis in the city of Bergen, Norway were evaluated with the established Centers for Disease Control and Prevention criteria for CFS. Fatigue was self-rated by the Fatigue Severity Scale (FSS). Physical and mental health status and functional impairment was measured by the Medical Outcome Severity Scale-short Form-36 (SF-36). The Hospital Anxiety and Depression Scale (HADS) was used to measure co-morbid anxiety and depression. Inability to work or study because of fatigue was determined by sickness absence certified by a doctor.</p> <p>Results</p> <p>A total of 58 (60%) out of 96 patients with long-lasting post-infectious fatigue after laboratory confirmed giardiasis were diagnosed with CFS. In all, 1262 patients had laboratory confirmed giardiasis. At the time of referral (mean illness duration 2.7 years) 16% reported improvement, 28% reported no change, and 57% reported progressive course with gradual worsening. Mean FSS score was 6.6. A distinctive pattern of impairment was documented with the SF-36. The physical functioning, vitality (energy/fatigue) and social functioning were especially reduced. Long-term sickness absence from studies and work was noted in all patients.</p> <p>Conclusion</p> <p>After giardiasis enteritis at least 5% developed clinical characteristics and functional impairment comparable to previously described post-infectious fatigue syndrome.</p>
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spelling doaj.art-2a7b9e1807e24ec28a7e422a0ee1b6852022-12-22T00:48:24ZengBMCBMC Gastroenterology1471-230X2012-02-011211310.1186/1471-230X-12-13Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absenceNaess HalvorNyland MortenHausken TrygveFollestad InghildNyland Harald I<p>Abstract</p> <p>Background</p> <p>A waterborne outbreak of Giardia lamblia gastroenteritis led to a high prevalance of long-lasting fatigue and abdominal symptoms. The aim was to describe the clinical characteristics, disability and employmentloss in a case series of patients with Chronic Fatigue Syndrome (CFS) after the infection.</p> <p>Methods</p> <p>Patients who reported persistent fatigue, lowered functional capacity and sickness leave or delayed education after a large community outbreak of giardiasis enteritis in the city of Bergen, Norway were evaluated with the established Centers for Disease Control and Prevention criteria for CFS. Fatigue was self-rated by the Fatigue Severity Scale (FSS). Physical and mental health status and functional impairment was measured by the Medical Outcome Severity Scale-short Form-36 (SF-36). The Hospital Anxiety and Depression Scale (HADS) was used to measure co-morbid anxiety and depression. Inability to work or study because of fatigue was determined by sickness absence certified by a doctor.</p> <p>Results</p> <p>A total of 58 (60%) out of 96 patients with long-lasting post-infectious fatigue after laboratory confirmed giardiasis were diagnosed with CFS. In all, 1262 patients had laboratory confirmed giardiasis. At the time of referral (mean illness duration 2.7 years) 16% reported improvement, 28% reported no change, and 57% reported progressive course with gradual worsening. Mean FSS score was 6.6. A distinctive pattern of impairment was documented with the SF-36. The physical functioning, vitality (energy/fatigue) and social functioning were especially reduced. Long-term sickness absence from studies and work was noted in all patients.</p> <p>Conclusion</p> <p>After giardiasis enteritis at least 5% developed clinical characteristics and functional impairment comparable to previously described post-infectious fatigue syndrome.</p>http://www.biomedcentral.com/1471-230X/12/13
spellingShingle Naess Halvor
Nyland Morten
Hausken Trygve
Follestad Inghild
Nyland Harald I
Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence
BMC Gastroenterology
title Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence
title_full Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence
title_fullStr Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence
title_full_unstemmed Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence
title_short Chronic fatigue syndrome after Giardia enteritis: clinical characteristics, disability and long-term sickness absence
title_sort chronic fatigue syndrome after giardia enteritis clinical characteristics disability and long term sickness absence
url http://www.biomedcentral.com/1471-230X/12/13
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AT follestadinghild chronicfatiguesyndromeaftergiardiaenteritisclinicalcharacteristicsdisabilityandlongtermsicknessabsence
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