In vivo confocal microscopy and in vitro culture techniques as tools for evaluation of severe Acanthamoeba keratitis incidents

• Autorzy: Padzik M. , Szaflik J.P. , Baltaza W. , Perkowski K. , Dybicz M. , Chomicz L.
• Języki publikacji: EN

Abstrakty

EN

Amphizoic amoebae belonging to the genus Acanthamoeba are known as etiological agents of sightthreatening Acanthamoeba keratitis. The leading risk factor for the development of this serious human disease is contact lens wearing which popularity increases worldwide, also in Poland. The disease with active epithelial inflammations, corneal ulcers, including loss of the visual acuity is a serious medical problem as an emerging threat for the public health related to improper contact lens hygiene. The treatment of the amoebic keratitis is difficult, often unsuccessful due to delayed proper diagnosis. The clinical picture of the disease, often with severe course is nonspecific, similar to that occurring in viral, fungal or bacterial keratitis, thus clinical symptoms alone are not sufficient to identify the causative agent of the amoebic infection. Early diagnosis is decisive for the suitable therapeutic management and the treatment efficacy. In our studies, several complicated, difficult to treat Acanthamoeba keratitis incidences pertaining Polish patients using contact lenses have been retrospectively analyzed in terms of the usefulness of non-invasive methods of in vivo confocal microscopy and in vitro culture techniques applied for diagnosis. Hyper-reflective double-walled spherical Acanthamoeba cysts, with a more reflective outer wall were detected in the epithelium and anterior layers of the corneal stroma. In vivo confocal microscopy, if available, may be a valuable, sensitive tool for diagnosis in late identified severe infections mainly with strong viability strains, however confoscan may offer limited value at lowintensity amoebic infections. The microscopic visualization of amoebae in slides prepared directly from corneal scraping and laboratory examinations of specimens from in vitro cultivated corneal isolates allow to confirm or verify results of in vivo examinations, furthermore to identify directly the pathogens and to clarify previous misdiagnoses.

• Wydawca: -
• Czasopismo: Annals of Parasitology
• Rocznik: 2017
• Tom: 63
• Numer: 4
• Opis fizyczny: p.341-346,ref.

Twórcy

autor

Padzik M.

• Department of Medical Biology, Medical University of Warsaw, Nowogrodzka 73, 02-018 Warsaw, Poland

autor

Szaflik J.P.

• Department of Ophthalmology, SPKSO Ophthalmic Hospital, Medical University of Warsaw, Sierakowskiego 13, 03-709 Warsaw, Poland

autor

Baltaza W.

• Department of Medical Biology, Medical University of Warsaw, Nowogrodzka 73, 02-018 Warsaw, Poland

autor

Perkowski K.

• Department of Orthodontics, Medical University of Warsaw, Nowogrodzka 59, 02-005 Warsaw, Poland

autor

Dybicz M.

• Chair and Department of General Biology and Parasitology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland

autor

Chomicz L.

• Department of Medical Biology, Medical University of Warsaw, Nowogrodzka 73, 02-018 Warsaw, Poland

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Identyfikatory

DOI

10.17420/ap6304.121