The British journal of ophthalmology · 2009
Ocular manifestations associated with murine typhus.
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Khairallah M, Ben Yahia S, Toumi A, Jelliti B, Loussaief C, Romdhane F B, Messaoud R, Chakroun M
Аннотация
AIMS: To characterise and analyse ocular manifestations associated with acute murine typhus (MT), an infectious disease caused by Rickettsia typhi.
METHODS: Nine consecutive patients (18 eyes) with serologically confirmed MT at the acute stage were enrolled in this prospective, non-comparative study. All patients underwent complete ophthalmic examination, including dilated biomicroscopic fundus examination, fundus photography, fluorescein angiography (FA) and indocyanine green (ICG) angiography.
RESULTS: Of nine patients, eight (88.9%) had bilateral ocular involvement related to MT, with (n = 3) or without (n = 5) associated ocular symptoms. Findings included mild vitreous inflammation (10 eyes; 55.6%), white retinal lesions (nine eyes; 50%), retinal haemorrhages (four eyes; 22.2%), retinal vascular leakage (seven eyes; 38.9%), hypofluorescent choroidal dots on FA and/or ICG angiography (11 eyes; 61.1%), optic-disc swelling (two eyes; 11.1%), optic neuritis (one eye; 5.6%) and optic-disc staining (11 eyes; 61.1%). All ocular findings had a self-limited course.
CONCLUSION: Ocular involvement is frequently observed in acute MT. A systematic fundus examination, complemented by angiography in selected cases, may be helpful in establishing an early clinical diagnosis of the disease while serological testing is pending.
METHODS: Nine consecutive patients (18 eyes) with serologically confirmed MT at the acute stage were enrolled in this prospective, non-comparative study. All patients underwent complete ophthalmic examination, including dilated biomicroscopic fundus examination, fundus photography, fluorescein angiography (FA) and indocyanine green (ICG) angiography.
RESULTS: Of nine patients, eight (88.9%) had bilateral ocular involvement related to MT, with (n = 3) or without (n = 5) associated ocular symptoms. Findings included mild vitreous inflammation (10 eyes; 55.6%), white retinal lesions (nine eyes; 50%), retinal haemorrhages (four eyes; 22.2%), retinal vascular leakage (seven eyes; 38.9%), hypofluorescent choroidal dots on FA and/or ICG angiography (11 eyes; 61.1%), optic-disc swelling (two eyes; 11.1%), optic neuritis (one eye; 5.6%) and optic-disc staining (11 eyes; 61.1%). All ocular findings had a self-limited course.
CONCLUSION: Ocular involvement is frequently observed in acute MT. A systematic fundus examination, complemented by angiography in selected cases, may be helpful in establishing an early clinical diagnosis of the disease while serological testing is pending.