- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07802600
Clinical, Dermoscopic, and Mycological Characteristics of Tinea Capitis in Children
Clinical, Dermoscopic, and Mycological Characteristics of Tinea Capitis in Children: A Cross-sectional Study
Przegląd badań
Status
Szczegółowy opis
Clinical types of tinea capitis include : scaly type (characterized by fine scaling and circular alopecia), black dot (characterized by non-inflammatory patches with broken-off, swollen hair stubs), tinea agminate (patchy alopecia with scattered pustules or low-grade folliculitis), kerion (painful, boggy, inflammatory masses with alopecia, often confused with bacterial abscess) and favus (scutula, mousy odor) . Tinea incognito (steroid modified tinea) refers to dermatophytosis that has lost their usual clinical appearance due to the use of steroids.
The main clinical feature of dermatophyte scalp infections is the appearance of scaling of the scalp skin, which is associated with a variable degree of inflammation and itching . In some cases, the infection closely resembles seborrheic dermatitis or dandruff of the scalp. A pathognomonic feature is hair loss; hair often breaks a few millimeters or more above the skin surface. Broken or infected hairs are also slightly swollen and have a dull appearance .
Trichoscopy is a non-invasive and very useful technique for the diagnosis and follow-up of hair and scalp disorders. The presence of certain trichoscopic features allows accurate identifying of tinea capitis. In tinea capitis, specific signs can be seen like comma hair, corkscrew hair, bar code-like hair and zigzag hair . In tinea incognito trichoscopic finding include erythema, scaling, bent hair, Morse code hair, and micropustules .
Mycological examination was first performed using Potassium Hydroxide(KOH) to confirm the diagnosis of tinea capitis where the patients with positive KOH were considered to have endothrix when observing arthroconidia inside the hair shaft and ectothrix when observing arthroconidia outside the hair shaft. The fungal culture also done to accurately recognize the organism through inoculation of samples on Sabouraud medium agar (SDA) with and without chloramphenicol(nonspecific medium) . And Dermasel medium agar act as specific medium.
The increase in antifungal resistance has recently been observed worldwide and resistant strains of the dermatophytes T. rubrum and T. indotineae have spread globally, causing outbreaks of extensive, difficult to treat infections , so we need rapid and reliable diagnostic tools that provide clues regarding the causative organisms.
Typ studiów
Zapisy (Szacowany)
Kontakty i lokalizacje
Kontakt w sprawie studiów
- Nazwa: Noha Shafik, Assistant professor
- Numer telefonu: 01067261504
- E-mail: nohasaber@med.sohag.edu.eg
Kopia zapasowa kontaktu do badania
- Nazwa: Walaa Hemdan Abu Alhassan, Demonstrator
Lokalizacje studiów
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Sohag, Egipt
- Faculty of Medicine , Sohag university
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Kontakt:
- Noha Shafik
- Numer telefonu: 01067261504
- E-mail: nohasaber@med.sohag.edu.eg
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Kontakt:
- Walaa Hemdan
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dziecko
- Dorosły
Akceptuje zdrowych ochotników
Metoda próbkowania
Badana populacja
The study will be conducted at the Dermatology Outpatient Clinic in Sohag University Hospitals.
Study population: The study population will be all patients with tinea capitis both male and female in childhood period, Aged 1-18 years old
Opis
Inclusion Criteria:
- Both male and female in childhood period (1-18 years) with tinea capitis
Exclusion Criteria:
- Topical or systemic antifungal medications one month prior to enrollment in the study
- Presence of systemic disease, such as hepatic,renal, cardiac, autoimmune diseases, or malignancy
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
Kohorty i interwencje
Grupa / Kohorta |
Interwencja / Leczenie |
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patients with tinea capitis both male and female in childhood period
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Specimen will be cultured on sabouraud's dextrose agar (SDA) at 25 -30 c for 2 to 4 weeks and another specimen will be cultured on a Dermasel agar base (Oxoid, UK), both supplemented with chloramphenicol and cycloheximide , staining the fungal colonies by Lactophenol cotton blue to help the examination of colonial morphology and microscopic examination of the macro-conidia allow the identification of the dermatophyte species and suitable treatment
Antifungal susceptibility testing will be performed to determine the specific sensitivity profiles of the fungal isolates.
Antifungal susceptibility testing will be performed using seven antifungal agents: Terbinafine, Itraconazole, Griseofulvin, Fluconazole, Ketoconazole, Vorioconole and Miconazole.
Dermatophytes colonies will be probed from Dermasel agar cultures.
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Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
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Percentage of participants presenting with specific clinical patterns of tinea capitis
Ramy czasowe: At the time of initial clinical evaluation
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Clinical evaluation will be performed to identify and classify the presentation of tinea capitis lesions (e.g., scaly patches, black dots, kerion, favus).
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At the time of initial clinical evaluation
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Percentage of participants exhibiting specific dermoscopic features of tinea capitis
Ramy czasowe: At the time of initial dermoscopic evaluation
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Dermoscopic examination using a handheld dermatoscope to identify characteristic signs including comma hairs, corkscrew hairs, broken hairs, and scaling.
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At the time of initial dermoscopic evaluation
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Prevalence of isolated fungal species among pediatric tinea capitis cases
Ramy czasowe: At the time of initial sample collection and culture identification
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Mycological evaluation including direct microscopic KOH preparation and fungal culture on agar media to isolate and identify the causative fungal pathogens.
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At the time of initial sample collection and culture identification
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Współpracownicy i badacze
Sponsor
Śledczy
- Krzesło do nauki: Mohammed Abu El Hamd Ali, Faculty of Medicine , Sohag university
- Krzesło do nauki: Doaa Gaber Abdelbaset, Faculty of Medicine , Sohag university
Publikacje i pomocne linki
Przydatne linki
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Szacowany)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- Soh-Med-26-8-10MS
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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