Showing 4 results for Resistant
Nafiseh Esmaeili, Zahra Karimi, Tahereh Soori, Abbas Karimi,
Volume 6, Issue 3 (10-2015)
Abstract
Background and Aim: Pemphigus is a chronic autoimmune blistering disease characterized by intraepidermal blisters.
These blisters damage the skin barrier and increase the risk of life-threatening infections. Nasal colonization of
Staphylococcus aureus can increase the risk of infections and delay the wound healing process.The aim of this study was to
determine the frequency of staphylococcal carriers in hospitalized patients with pemphigus.
Methods: In this prospective cross-sectional study, medical records of 72 hospitalized patients with pemphigus in the
period from March 2013 to March 2014 were reviewed.Samples were collected from anterior nares and cultured at the
time of admission and one week after hospitalization for evaluation of S. aureus colonization and Methicillin-resistant
Staphylococcus aureus (MRSA) types.
Results: Forty-five patients (62.5%) were male and 27 patients (37.5%) were female. The frequency of S. aureus
carriers was 58.3%. Thirty patients had colonization at the time of hospital admission among them, 22 (73.3%) patients
had MRSA. In forty (55.6%) patients colonization were found one week after hospitalization. Thirty-three (82.5%) patients
in this group were MRSA positive. There was no significant difference between S. aureus colonization at the time of
admission and one week after hospitalization (P>0.05).
Conclusion: S. aureus and MRSA carriers (communityacquired and hospital-acquired carriers) were prevalent
among patients with pemphigus. With identifiction and isolation of carriers of S. aureus in pemphigus patients, not
only could prevent spreading S. aureus and MRSA associated infections, bul also would facilitate wound healing. More
robust studies are required to assess the role of potential riskfactors.
Seyedesaba Sharifzadeh, Ensieh Lotfali, Nargol Novin, Shayan Norouzi, Farinaz Azizi,
Volume 13, Issue 1 (5-2022)
Abstract
Background and Aim: Oral lichen planus is a chronic
muco-cutaneous immunopathological disorder that commonly affects the oral mucosa. Candida albicans is the most common pathogen associated with oral candidiasis. The aim of this study was to determine the effect of 810 nm low power laser wavelength as an adjuvant in the treatment of
nystatin-resistant C.albicans in patients with oral lichen planus.
Methods: In this experimental study, 5 nystatin-resistant C.albicans were isolated from the oral cavity of patients with ulcerative lichen planus. Drug susceptibility testing was performed based on CLSI-M27-A3 and showed that these isolates were resistant to nystatin. The fungal suspension with a dilution of 0.5 McFarland was exposed to a diode laser with a wavelength of 810 nm and a density energy of 20.38 j / cm with a time of 20 seconds. Then the results of minimum inhibitory concentration (MIC) were recorded for each group.
Results: 810 nm laser caused a significant reduction in nystatin-resistant C.albicans colonies (P<0.001). The MIC did not decrease significantly after the exposure.
Conclusion: Laser irradiation reduces the number of nystatin-resistant C.albicans colonies. But this effect does not necessarily change the MIC. Dentists should be aware that in cases of resistant Candida strains, a low-power diode laser with a wavelength of 810 nm can play a role in reducing colonies and responding better to standard treatment.
Alireza Firooz, Azin Ayatollahi, Farnaz Valizade, Mansour Nassiri Kashani, Zaghrabeigom Moosavi, Mahsa Fattahi,
Volume 13, Issue 2 (8-2022)
Abstract
Background: Tinea capitis is the term used for scalp infections caused by dermatophyte fungi. Tinea capitis is common in children and is less common in adults.
Case Report: The case was a 9-year-old girl with itchy patches of alopecia on the. The patient had a cat as a pet. On examination, the patch of hair loss was itchy and the hair shaft was broken and scales were mild. In the examination with Wood's lamp and direct microscopic examination, the ectothrix infection was deagnised. According to the dermatologist's opinion, a terbinafine 50 mg was prescribed daily. However, no significant improvement was observed despite 4 weeks of terbinafine. As a result, the dose of terbinafine treatment was changed from 50 mg to 250 mg per day. After 6 weeks of treatment, the clinical manifestations of the patient improved significantly.
Conclusion: After ringworm is confirmed microscopically, choosing the most appropriate antifungal treatment depends on determining the fungal species by culture. Therefore, when choosing empiric antifungal agent therapy, a dose of 250 mg terbinafine may be a good choice for children.
Azin Ayatollahi, Pegah Tamimi, Aliasghar Ghaderi, Mahsa Fattahi,
Volume 14, Issue 4 (2-2024)
Abstract
Recently, the cases of dermatophytosis have increased sharply, which is associated with frequent reports of chronic cases of the disease, uncommon skin manifestations, and treatment failure. Cases of emergence of resistant species in other geographical areas such as Denmark, Switzerland, and China, Belgium, Germany, Japan, Iran, Finland, Switzerland, France, Iraq and Bahrain are also known. Antifungal drug susceptibility testing for dermatophyte species has not yet been standardized. Antifungal Susceptibility Tests (AFST) are used to determine the minimum growth inhibitory concentration (MIC) of a specific drug in laboratory conditions with the aim of predicting whether a patient will respond to standard antifungal treatment or not. In the continuation of this article, we gave an overview of the antifungal sensitivity test, including its strengths and weaknesses and its role in helping to make therapeutic decisions.
