Volume 21, Number 7—July 2015
Policy Review
Chronic Q Fever Diagnosis—Consensus Guideline versus Expert Opinion
Table 1
Dutch consensus guideline on chronic Q fever diagnostics*
Proven chronic Q fever | Probable chronic Q fever | Possible chronic Q fever |
---|---|---|
1. Positive Coxiella burnetii PCR of blood or tissue† | IFA ≥1:1,024 for C. burnetii phase I IgG‡ | IFA ≥ 1:1,024 for C. burnetii phase I IgG‡ without manifestations meeting the criteria for proven or probable chronic Q fever |
OR | AND any of the following: | |
2. IFA ≥1:800 or 1:1,024 for C. burnetii phase I IgG† | Valvulopathy not meeting the major criteria of the modified Duke criteria (13) | |
AND | Known aneurysm and/or vascular or cardiac valve prosthesis without signs of infection by means of TEE/ TTE, FDG-PET, CT, MRI, or AUS | |
Definite endocarditis according to the modified Duke criteria (13) | ||
OR | ||
Proven large vessel or prosthetic infection by imaging studies (FDG-PET, CT, MRI, or AUS) | Suspected osteomyelitis or hepatitis as manifestation of chronic Q fever | |
Pregnancy | ||
Symptoms and signs of chronic infection, such as fever, weight loss and night sweats, hepato-splenomegaly, persistent raised ESR and CRP | ||
Granulomatous tissue inflammation, proven by histological examination | ||
Immunocompromised state |
*Source (14). IFA, immunofluorescence assay; TEE, transesophageal echocardiography; TTE, transthoracic echocardiography; FDG-PET, fluorodeoxyglucose positron emission tomography; CT, computed tomography; MRI, magnetic resonance imaging; AUS, abdominal ultrasound; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein.
†In the absence of acute infection.
‡Cut-off depends on the IFA technique used, whether in-house developed or commercial.
References
- van der Hoek W, Dijkstra F, Schimmer B, Schneeberger PM, Vellema P, Wijkmans C, Q fever in the Netherlands: an update on the epidemiology and control measures. Euro Surveill. 2010;15:19520.PubMedGoogle Scholar
- Delsing CE, Kullberg BJ, Bleeker-Rovers CP. Q fever in the Netherlands from 2007 to 2010. Neth J Med. 2010;68:382–7.PubMedGoogle Scholar
- Landais C, Fenollar F, Thuny F, Raoult D. From acute Q fever to endocarditis: serological follow-up strategy. Clin Infect Dis. 2007;44:1337–40. DOIPubMedGoogle Scholar
- Raoult D, Tissot-Dupont H, Foucault C, Gouvernet J, Fournier PE, Bernit E, Q fever 1985–1998. Clinical and epidemiologic features of 1,383 infections. Medicine (Baltimore). 2000;79:109–23. DOIPubMedGoogle Scholar
- Botelho-Nevers E, Fournier PE, Richet H, Fenollar F, Lepidi H, Foucault C, Coxiella burnetii infection of aortic aneurysms or vascular grafts: report of 30 new cases and evaluation of outcome. Eur J Clin Microbiol Infect Dis. 2007;26:635–40. DOIPubMedGoogle Scholar
- Million M, Thuny F, Richet H, Raoult D. Long-term outcome of Q fever endocarditis: a 26-year personal survey. Lancet Infect Dis. 2010;10:527–35. DOIPubMedGoogle Scholar
- Raoult D, Houpikian P, Tissot DH, Riss JM, Arditi-Djiane J, Brouqui P. Treatment of Q fever endocarditis: comparison of 2 regimens containing doxycycline and ofloxacin or hydroxychloroquine. Arch Intern Med. 1999;159:167–73. DOIPubMedGoogle Scholar
- Wegdam-Blans MC, Vainas T, van Sambeek MR, Cuypers PW, Tjhie HT, van Straten AH, Vascular complications of Q-fever infections. Eur J Vasc Endovasc Surg. 2011;42:384–92. DOIPubMedGoogle Scholar
- Fenollar F, Fournier PE, Raoult D. Molecular detection of Coxiella burnetii in the sera of patients with Q fever endocarditis or vascular infection. J Clin Microbiol. 2004;42:4919–24. DOIPubMedGoogle Scholar
- Musso D, Raoult D. Coxiella burnetii blood cultures from acute and chronic Q-fever patients. J Clin Microbiol. 1995;33:3129–32.PubMedGoogle Scholar
- Dupont HT, Thirion X, Raoult D. Q fever serology: cutoff determination for microimmunofluorescence. Clin Diagn Lab Immunol. 1994;1:189–96.PubMedGoogle Scholar
- Kampschreur LM, Oosterheert JJ, Koop AM, Wegdam-Blans MC, Delsing CE, Bleeker-Rovers CP, Microbiological challenges in the diagnosis of chronic Q fever. Clin Vaccine Immunol. 2012;19:787–90. DOIPubMedGoogle Scholar
- Raoult D. Chronic Q fever: expert opinion versus literature analysis and consensus. J Infect. 2012;65:102–8. DOIPubMedGoogle Scholar
1A complete list of the group members is provided at the end of this article.