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1.
An Bras Dermatol ; 2024 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-39112289

RESUMO

The diagnosis of pigmented nail lesions is a concern for both general practitioners and dermatologists, due to the possibility of indicating nail melanoma. The origin of the dark pigmentation can be either melanocytic or non-melanocytic (fungi, bacteria, or blood), and clinical evaluation alone may not be sufficient for differentiation, requiring additional exams. Onychoscopy provides valuable information prior to biopsy. The causes of nail pigmentation will be described to aid in the differential diagnosis.

2.
J Dermatol ; 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39115330

RESUMO

Onychomycosis, a fungal nail infection, is a common dermatological condition in Japan, with a prevalence of approximately 5%-10%. Despite the introduction of new antifungal medications and updated treatment guidelines published in 2019, data on real-world prescription trends and the associated medical costs are limited. This study aimed to investigate the prescription patterns and medical costs of topical and oral antifungal medications for onychomycosis in Japan from fiscal years 2014 to 2021 using the National Database of Health Insurance Claims and Specific Health Checkups of Japan Open Data. We analyzed the annual prescription volumes and medical costs of four antifungal medications: efinaconazole, luliconazole, fosravuconazole, and terbinafine. The prescription volume of efinaconazole, a topical medication launched in 2014, rapidly increased and dominated the market share. Fosravuconazole, an oral medication introduced in 2018, showed an increasing trend, coinciding with a decline in efinaconazole prescriptions. Terbinafine, a well-established oral medication, experienced a substantial decrease in prescription volume. The sex- and age-adjusted prescription volume per 100 000 population was higher among older adults, particularly for efinaconazole. The total medical costs for onychomycosis treatment more than doubled in fiscal year 2015 compared with that for 2014, mainly driven by efinaconazole prescriptions, and exceeded 30 billion Japanese yen in fiscal years 2019-2021. The costs slightly decreased in fiscal years 2020 and 2021, possibly due to the introduction of fosravuconazole. The predominance of topical prescriptions, especially in older adults, raises concerns regarding adherence to the Japanese guidelines that recommend oral antifungals as the first-line treatment for onychomycosis. The substantial increase in medical costs also highlights the economic burden of onychomycosis and the need for cost-effective treatment strategies. This study provides valuable insights into the real-world prescription trends and medical costs of onychomycosis treatment in Japan, suggesting an opportunity to assess potential gaps between guideline recommendations and clinical practice.

3.
J Fungi (Basel) ; 10(8)2024 Jul 24.
Artigo em Inglês | MEDLINE | ID: mdl-39194841

RESUMO

Onychomycosis (OM) is a widespread infection requiring prolonged treatment with potential side effects. Diagnostic certainty is therefore essential before initiating antifungal therapy. Molecular biology has already shown benefits in reducing the time to diagnosis, providing technical ease, and increasing sensitivity for the respective species that molecular tests can detect. Nevertheless, causative agents are numerous, and culture remains essential, particularly for detecting non-dermatophytes mold infections. This study compared the performance of three different diagnostic strategies: conventional culture technique, the multiplex DermaGenius® 2.0 PCR (DG), and a mixed PCR/culture algorithm guided by the result of direct examination with calcofluor (DEC). The mixed algorithm (MA) prioritizes DG PCR and DEC as the primary diagnostic tools, supplemented by selective sample inoculation when mycelial elements are visualized in DEC and when DG PCR fails to detect any fungus or identifies a fungus with morphology differing from that observed in DEC (filamentous fungi versus yeasts). With only 13% of samples requiring inoculation, MA emerged as the most effective strategy, demonstrating significantly higher sensitivity (98.18%; p < 0.001) compared to single-method approaches (78.18% for DG PCR alone and 74.55% for culture alone) while maintaining a specificity comparable to DG PCR (100%). This new approach saves time in result delivery, requires fewer human resources, and increases diagnostic accuracy to better meet the needs of clinicians.

4.
J Fungi (Basel) ; 10(8)2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39194860

RESUMO

Onychomycosis is a common fungal nail infection that is difficult to diagnose due to its similarity to other nail conditions. Accurate identification is essential for effective treatment. The current gold standard methods include microscopic examination with potassium hydroxide, fungal cultures, and Periodic acid-Schiff biopsy staining. These conventional techniques, however, suffer from high turnover times, variable sensitivity, reliance on human interpretation, and costs. This study examines the potential of integrating AI (artificial intelligence) with visualization tools like dermoscopy and microscopy to improve the accuracy and efficiency of onychomycosis diagnosis. AI algorithms can further improve the interpretation of these images. The review includes 14 studies from PubMed and IEEE databases published between 2010 and 2024, involving clinical and dermoscopic pictures, histopathology slides, and KOH microscopic images. Data extracted include study type, sample size, image assessment model, AI algorithms, test performance, and comparison with clinical diagnostics. Most studies show that AI models achieve an accuracy comparable to or better than clinicians, suggesting a promising role for AI in diagnosing onychomycosis. Nevertheless, the niche nature of the topic indicates a need for further research.

5.
J Fungi (Basel) ; 10(8)2024 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-39194903

RESUMO

Diabetes Mellitus (DM) is a significant global concern. Many diabetic patients will experience complications due to angiopathy, neuropathy, and immune dysfunction, namely diabetic foot ulcers (DFU) and diabetic foot infections (DFI), which can result in lower limb amputation and potentially death. The prevalence of common superficial fungal infections, such as tinea pedis and onychomycosis, can directly increase a diabetic patient's risk of developing both DFU and DFI. In this review article, we discuss the etiology of diabetic foot complications as well as considerations for both screening and management. We also discuss the role of the dermatologist within a multidisciplinary care team in prescribing and managing treatments for tinea pedis and onychomycosis infections within this patient population. We believe that reducing the burden of these fungal infections in the context of the diabetic foot will help reduce DFU and DFI complications and their associated morbidity and mortality.

6.
Antimicrob Agents Chemother ; : e0068224, 2024 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-39158295

RESUMO

Topical antifungals may be considered to treat onychomycosis with minimal risk of systemic side effects. In this study, we assess the safety, tolerability, systemic exposure, and pharmacokinetic characteristics of topical terbinafine hydrochloride 10% solution (MOB015B) in adults with moderate-to-severe onychomycosis. Clinically and mycologically confirmed patients with toenail onychomycosis (N = 20) were enrolled in this single-center, open-label study . Each patient had ≥50% involvement of both great toenails and at least four additional toenails affected. MOB015B was applied once daily to all toenails for 28 days. Blood was drawn on days 1, 14, and 28. Plasma concentrations of MOB015B after the first dose were quantifiable in all subjects by 24 h. Steady-state levels in plasma were reached by day 28. The mean systemic exposure on day 28 of 0.72 ng/mL for maximum plasma concentration (Cmax) was approximately 2,000 times lower than the mean plasma level of 1.39 µg/mL seen after oral administration of 250 mg terbinafine for 28 days. Adverse events (five patients), such as headache (n = 3), seasonal allergy (n = 1), and neck pain (n = 1), were considered unrelated to MOB015B; no application site reactions or study discontinuations due to an adverse event were observed. MOB015B applied to all affected toenails under maximal usage conditions for 28 days demonstrated very low levels of terbinafine in plasma (Cmax <1 ng/mL after 28 days), consistent with a favorable safety and tolerability profile. CLINICAL TRIALS: This study is registered with ClinicalTrials.gov as NCT03244280.

7.
Expert Opin Drug Saf ; : 1-5, 2024 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-39136391

RESUMO

INTRODUCTION: Terbinafine may cause subacute cutaneous lupus erythematosus (SCLE), and we aimed to analyze its clinical characteristics. METHODS: We collected literature on terbinafine-induced SCLE from 1997 to 2023 for retrospective analysis. Thirty-seven patients (33 females and 4 males) were included. RESULTS: The patients have a median age of 49.5 years (range 18-79) and onset time of 5 weeks (range 1-12). SCLE is mainly manifested as annular erythematous (83.3%), scaly erythematous (44.4%), and maculopapular erythematous (13.9%). Mainly, histopathological manifestations are lymphocytic infiltrate (55.6%), hyperkeratosis (38.9%) and keratinocyte necrosis (38.9%). Positive immunological parameters mainly include antinuclear antibody (100.0%), anti-Ro/SSA antibody (94.1%), and anti-La/SSB antibody (72.2%). Past medical history usually includes photosensitivity (33.3%), inflammatory disease (33.33%), and lupus erythematosus (12.1%). Symptoms are completely resolved within a median time of 35 days (range 7-84) after discontinuation of terbinafine and treatment with topical corticosteroids, systemic corticosteroids, hydroxychloroquine, and immunosuppressant. No recurrence was observed within 12 months (range 1.5-48) of follow-up. CONCLUSION: These results suggest that terbinafine-induced SCLE should be comprehensively diagnosed based on clinical symptoms, histopathological manifestations, immunological parameters, and past medical history. Terbinafine should be immediately discontinued when SCLE occurs, while systemic and topical corticosteroids combined with hydroxychloroquine may be an effective treatment.

8.
In Vivo ; 38(5): 2531-2534, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39187360

RESUMO

BACKGROUND/AIM: Chronic lower limb ischaemia is a peripheral arterial disease (PAD) which is typically instigated by atherosclerotic plaques in the peripheral vasculature. This article reports on a unique case of chronic ischaemia in the lower limb, presenting in a distinctive manner as a fungal toenail infection. CASE REPORT: An 82-year-old frail woman with multimorbidity presented with toenail symptoms in her right foot. While initial examination had shown onychomycosis, further investigation was unexpectedly consistent with chronic ischaemia in the lower limb. We explored the clinical presentation, diagnostic challenges encountered, and the subsequent management of this unique manifestation in the context of the patient's multimorbidity. CONCLUSION: This case report highlights the need to consider chronic limb ischemia as a differential diagnosis in toenail infections when no alternative causes or predisposing factors are identified.


Assuntos
Onicomicose , Humanos , Feminino , Idoso de 80 Anos ou mais , Onicomicose/diagnóstico , Onicomicose/microbiologia , Diagnóstico Diferencial , Extremidade Inferior/irrigação sanguínea , Isquemia/diagnóstico , Isquemia/etiologia , Isquemia Crônica Crítica de Membro/diagnóstico , Doença Arterial Periférica/diagnóstico
9.
Nanomedicine (Lond) ; : 1-19, 2024 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-39143900

RESUMO

Aim: To developed and investigate gallic acid (GA) loaded self-nanoemulsifying drug delivery systems (SNEDDS) for treating onychomycosis via transungual route. Materials & methods: The SNEDDS were prepared by direct dispersion technique and were evaluated for characteristics parameters using Fourier transform infrared, differential scanning calorimetry, confocal microscopy, transmission electron microscopy and zeta sizer. Furthermore, the safety of prepared formulation was evaluated via Hen's egg test-chorioallantoic membrane study and stability was confirmed using different parameters. Also, its effectiveness was evaluated against fungal strain Trichophyton mentagrophytes. Results: The SNEDDS displayed a particle size of 199.8 ± 4.21 nm and a zeta potential; of -22.75 ± 2.09 mV. Drug release study illustrated a sustained release pattern with a release of 70.34 ± 0.20% over a period of 24 h. The penetration across the nail plate was found to be 1.59 ± 0.002 µg/mg and 0.97 ± 0.001 µg/mg for GA loaded SNEDDS and GA solution respectively. An irritation score of 0.52 ± 0.005 and 3.84 ± 0.001 was reported for GA loaded SNEDDS hydrogel and GA solution, indicating a decrease in the drug's irritation potential from slightly irritating to non irritating due to its entrapment within the SNEDDS. Conclusion: GA loaded SNEDDS has potential to address limitations of conventional treatments, enhancing the drug's efficacy and reducing the likelihood of resistance in the treatment of Onychomycosis.


[Box: see text].

10.
Artigo em Inglês | MEDLINE | ID: mdl-39133361

RESUMO

INTRODUCTION: Topical antifungals for toenail onychomycosis must penetrate the nail to deliver an inhibitory concentration of free drug to the site of infection. In two ex vivo experiments, we tested the ability of topical antifungals to inhibit growth of Trichophyton rubrum and Trichophyton mentagrophytes, the most common causative fungi in toenail onychomycosis. METHODS: Seven topical antifungals were tested: three U.S. Food and Drug Administration-approved products indicated for onychomycosis (ciclopirox 8% lacquer; efinaconazole 10% solution; tavaborole 5% solution) and four over-the-counter (OTC) products for fungal infections (tolnaftate 1% and/or undecylenic acid 25% solutions). The ability to inhibit fungal growth was tested in the presence and absence of keratin. Products were applied either to human cadaverous nails or keratin-free cellulose disks prior to placement on an agar plate (radius: 85 mm) seeded with a clinical isolate of T. rubrum or T. mentagrophytes. After incubation, the zone of inhibition (ZI), defined as the radius of the area of no fungal growth, was recorded. RESULTS: In the nail penetration assay, average ZIs for efinaconazole (T. rubrum: 82.1 mm; T. mentagrophytes: 63.8 mm) were significantly greater than those for tavaborole (63.5 mm; 39.1 mm), ciclopirox (7.4 mm; 3.6 mm) and all OTC products (range: 10.5-34.2 mm against both species; all P < 0.001). In the cellulose disk diffusion assay, efinaconazole and tavaborole demonstrated maximal antifungal activity against both species (ZIs = 85 mm); average ZIs against T. rubrum and T. mentagrophytes were smaller for ciclopirox (59.0 and 55.7 mm, respectively) and OTC products (range: 31.2-57.8 mm and 25.7-47.7 mm, respectively). CONCLUSIONS: Among all antifungals tested, the ability to penetrate human toenails to inhibit growth of both T. rubrum and T. mentagrophytes was greatest for efinaconazole, followed by tavaborole. These results indicate superior transungual penetration of efinaconazole compared to the other antifungals, suggesting lower keratin binding in the nail.

11.
Mycoses ; 67(7): e13768, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39036952

RESUMO

BACKGROUND: There is a concerning rise in antifungal-resistant dermatophytosis globally, with resistance to terbinafine conferred by point mutations in the squalene epoxidase (SQLE) gene. OBJECTIVES: Report changes in the prevalence and profile of SQLE mutations in onychomycosis patients in the United States. METHODS: A longitudinal cohort study of toenail samples was collected from suspected onychomycosis patients over an 18-month period from 2022 to 2023. Samples were submitted from across the United States and subjected to multiplex real-time polymerase chain reactions for dermatophyte detection, with further screening of SQLE mutations at four known hotspots (393Leu, 397Phe, 415Phe and 440His). RESULTS: A total of 62,056 samples were submitted (mean age: 57.5 years; female: 60.4%). Dermatophytes were detected in 38.5% of samples, primarily Trichophyton rubrum complex (83.6%) and T. mentagrophytes complex (10.7%). A survey of SQLE mutations was carried out in 22,610 dermatophyte samples; there was a significant increase in the prevalence of SQLE mutations between the first quarter of 2022 and the second quarter of 2023 (29.0 to 61.9 per 1000 persons). The Phe397Leu substitution was the predominant mutation; Phe415Ser and His440Tyr have also emerged which were previously reported as minor mutations in skin samples. The temporal change in mutation rates can be primarily attributed to the Phe415Ser substitution. Samples from elderly patients (>70 years) are more likely to be infected with the T. mentagrophytes complex including strains harbouring the Phe415Ser substitution. CONCLUSION: The prevalence of SQLE mutations among onychomycosis patients with Trichophyton infections may be underestimated. Older individuals may have a higher risk.


Assuntos
Antifúngicos , Arthrodermataceae , Farmacorresistência Fúngica , Onicomicose , Esqualeno Mono-Oxigenase , Terbinafina , Humanos , Onicomicose/microbiologia , Onicomicose/epidemiologia , Onicomicose/tratamento farmacológico , Esqualeno Mono-Oxigenase/genética , Feminino , Pessoa de Meia-Idade , Masculino , Terbinafina/farmacologia , Terbinafina/uso terapêutico , Farmacorresistência Fúngica/genética , Estados Unidos/epidemiologia , Antifúngicos/farmacologia , Antifúngicos/uso terapêutico , Estudos Longitudinais , Idoso , Arthrodermataceae/genética , Arthrodermataceae/efeitos dos fármacos , Adulto , Mutação , Estudos de Coortes , Trichophyton/genética , Trichophyton/efeitos dos fármacos , Adulto Jovem , Prevalência , Mutação Puntual , Idoso de 80 Anos ou mais , Adolescente , Unhas/microbiologia
12.
Eur J Dermatol ; 34(3): 260-266, 2024 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-39015959

RESUMO

Onychomycosis, a fungal nail infection, is primarily caused by dermatophytes, yeasts, and non-dermatophyte moulds (NDMs). The incidence of this disease and the predominance of specific pathogens vary across different regions and evolve. This study aimed to elucidate the epidemiology of onychomycosis and the pattern of causative pathogens in Beijing, and to ascertain the in vitro antifungal susceptibility profiles of Trichophyton rubrum against itraconazole (ITR), terbinafine (TER), and fluconazole (FLU). Involving 245 patients of onychomycosis with positive fungal culture results, the study implemented internal transcribed spacer (ITS) sequencing of ribosomal DNA (rDNA) on all collected samples. The mean age of the participants was 37.93 ± 13.73 years, with a male-to-female ratio of 1.53:1. The prevalence of toenail infections was significantly higher than that of fingernails. Distal and lateral subungual onychomycosis (DLSO) were the most frequent clinical classifications. PCR results indicated that dermatophytes were the most prevalent pathogens, followed by yeasts and NDMs, among which T. rubrum was the most dominant dermatophyte. TER demonstrated high sensitivity to T. rubrum. However, in clinical settings, some patients with onychomycosis exhibit a poor response to TER treatment. The relationship between in vitro antifungal sensitivity and clinical effectiveness is complex, and understanding the link between in vitro MIC values and clinical efficacy requires further investigation.


Assuntos
Antifúngicos , Fluconazol , Dermatoses do Pé , Itraconazol , Testes de Sensibilidade Microbiana , Onicomicose , Terbinafina , Humanos , Onicomicose/microbiologia , Onicomicose/tratamento farmacológico , Onicomicose/epidemiologia , Masculino , Antifúngicos/farmacologia , Antifúngicos/uso terapêutico , Feminino , Adulto , Pessoa de Meia-Idade , Terbinafina/farmacologia , Terbinafina/uso terapêutico , Dermatoses do Pé/microbiologia , Dermatoses do Pé/tratamento farmacológico , Itraconazol/farmacologia , Itraconazol/uso terapêutico , Fluconazol/farmacologia , Arthrodermataceae/efeitos dos fármacos , Adulto Jovem , Dermatoses da Mão/microbiologia , Dermatoses da Mão/tratamento farmacológico , Dermatoses da Mão/epidemiologia , China/epidemiologia , Prevalência , Trichophyton/efeitos dos fármacos , Idoso , Adolescente
13.
West Afr J Med ; 41(4): 363-371, 2024 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-39002161

RESUMO

INTRODUCTION: Onychomycosis is a fungal infection of the nail unit and one of the common nail diseases that occurs commonly in diabetic patients. It poses a threat of diabetic foot complications to diabetics and negatively affects the quality of life of the patients. OBJECTIVES: The overall aim of the study was to determine the prevalence and clinical features of onychomycosis in diabetics, as well as the spectrum of causative fungi in Nigeria as compared with age and sex-matched controls. METHODOLOGY: This was a hospital-based, comparative cross-sectional study. One hundred and fifty consecutive adult diabetics and 150 healthy controls (accompanied persons and staff) matched for age and sex were recruited from the Diabetic Clinics and the Dermatology Clinic of the University of Nigeria Teaching Hospital, Ituku-Ozalla. The participants were interviewed using a pre-tested structured questionnaire, nail scrapings were collected for fungal studies, and clippings for nail histopathology using Periodic Acid Schiff. RESULTS: The prevalence of onychomycosis among DM subjects was 45.3% vs. 35.3% in controls, which was not statistically significant (P value 0.078). Distal-lateral subungual onychomycosis was the most common clinical type in both study groups and presented mainly with nail discolouration, onycholysis, and subungual hyperkeratosis. The most common fungi isolated were dermatophytes (Trichophyton soudanense), non-dermatophytes (Aspergillus spp.), and Candida species (Candida albicans). CONCLUSION: Onychomycosis in diabetics is a very common nail disorder in the South-Eastern part of Nigeria with a high prevalence. The presence of foot ulcers was associated with onychomycosis in diabetics, and they were more likely to have non-dermatophytic onychomycosis.


INTRODUCTION: L'onychomycose est une infection fongique de l'unité de l'ongle et l'une des maladies des ongles les plus courantes chez les patients diabétiques. Elle pose une menace de complications du pied diabétique et affecte négativement la qualité de vie des patients. OBJECTIFS: L'objectif général de l'étude était de déterminer la prévalence et les caractéristiques cliniques de l'onychomycose chez les diabétiques, ainsi que le spectre des champignons causaux au Nigeria par rapport à un groupe témoin apparié selon l'âge et le sexe. MÉTHODOLOGIE: Il s'agissait d'une étude transversale comparative réalisée en milieu hospitalier. Cent cinquante diabétiques adultes consécutifs et 150 témoins sains (personnes accompagnatrices et personnel) appariés selon l'âge et le sexe ont été recrutés dans les cliniques de diabète et la clinique de dermatologie de l'Hôpital Universitaire du Nigeria à Ituku-Ozalla. Les participants ont été interrogés à l'aide d'un questionnaire structuré pré-testé, des échantillons de grattage d'ongles ont été prélevés pour des études fongiques, et des échantillons pour l'histopathologie des ongles utilisant l'acide périodique de Schiff. RÉSULTATS: La prévalence de l'onychomycose chez les sujets atteints de diabète était de 45,3 % contre 35,3 % chez les témoins, ce qui n'était pas statistiquement significatif (valeur de p 0,078). L'onychomycose sousunguéale distale-latérale était le type clinique le plus courant dans les deux groupes d'étude et se manifestait principalement par une décoloration des ongles, une onycholyse et une hyperkératose sousunguéale. Les champignons les plus couramment isolés étaient les dermatophytes (Trichophyton soudanense), les non-dermatophytes (Aspergillus spp.) et les espèces de Candida (Candida albicans). CONCLUSION: L'onychomycose chez les diabétiques est un trouble des ongles très courant dans le sud-est du Nigeria avec une prévalence élevée. La présence d'ulcères du pied était associée à l'onychomycose chez les diabétiques, et ils étaient plus susceptibles de présenter une onychomycose non-dermatophytique. MOTS - CLÉS: Onychomycose, Diabète sucré, Prévalence, Champignons, Nigeria.


Assuntos
Onicomicose , Humanos , Onicomicose/epidemiologia , Onicomicose/microbiologia , Nigéria/epidemiologia , Masculino , Feminino , Estudos Transversais , Prevalência , Pessoa de Meia-Idade , Adulto , Estudos de Casos e Controles , Idoso , Pé Diabético/epidemiologia , Pé Diabético/microbiologia , Dermatoses do Pé/epidemiologia , Dermatoses do Pé/microbiologia
15.
Infect Drug Resist ; 17: 3185-3188, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39070719

RESUMO

Onychomycosis in infants is a rare fungal infection. The condition is frequently linked to congenital or secondary immunodeficiency, as well as exposure to contaminated environments. In this report, we present a case of infant onychomycosis, likely infected during birth delivery from the mother with vaginal candidiasis. However, both the infant and the mother recovered spontaneously without any treatment over several months.

17.
Expert Rev Anti Infect Ther ; 22(6): 399-412, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38841996

RESUMO

INTRODUCTION: Terbinafine is considered the gold standard for treating skin fungal infections and onychomycosis. However, recent reports suggest that dermatophytes are developing resistance to terbinafine and the other traditional antifungal agents, itraconazole and fluconazole. When there is resistance to terbinafine, itraconazole or fluconazole, or when these agents cannot used, for example, due to potential drug interactions with the patient's current medications, clinicians may need to consider off-label use of new generation azoles, such as voriconazole, posaconazole, fosravuconazole, or oteseconazole. It is essential to emphasize that we do not advocate the use of newer generation azoles unless traditional agents such as terbinafine, itraconazole, or fluconazole have been thoroughly evaluated as first-line therapies. AREAS COVERED: This article reviews the clinical evidence, safety, dosage regimens, pharmacokinetics, and management algorithm of new-generation azole antifungals. EXPERT OPINION: Antifungal stewardship should be the top priority when prescribing new-generation azoles. First-line antifungal therapy is terbinafine and itraconazole. Fluconazole is a consideration but is generally less effective and its use may be off-label in many countries. For difficult-to-treat skin fungal infections and onychomycosis, that have failed terbinafine, itraconazole and fluconazole, we propose consideration of off-label voriconazole or posaconazole.


Assuntos
Antifúngicos , Azóis , Farmacorresistência Fúngica , Onicomicose , Humanos , Antifúngicos/administração & dosagem , Antifúngicos/efeitos adversos , Antifúngicos/farmacologia , Onicomicose/tratamento farmacológico , Onicomicose/microbiologia , Azóis/administração & dosagem , Azóis/farmacologia , Dermatomicoses/tratamento farmacológico , Dermatomicoses/microbiologia , Uso Off-Label , Interações Medicamentosas , Arthrodermataceae/efeitos dos fármacos
18.
J Fungi (Basel) ; 10(6)2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-38921385

RESUMO

Introduction: It has long been accepted that trauma is one of the most important and frequent predisposing factors for onychomycoses. However, the role of direct trauma in the pathogenesis of fungal nail infections has only recently been elucidated in a series of 32 cases of post-traumatic single-digit onychomycosis. The importance of repeated trauma due to foot and toe abnormalities was rarely investigated. Aimof the study: This is a multicenter single-author observational study over a period of 6 years performed at specialized nail clinics in three countries. All patient photographs taken by the author during this period were screened for toenail alterations, and all toe onychomycosis cases were checked for whether they contained enough information to evaluate potential foot and toe abnormalities. Particular attention was paid to the presence of hallux valgus, hallux valgus interphalangeus, hallux erectus, inward rotation of the big toe, and outward rotation of the little toe, as well as splay foot. Only cases with unequivocal proof of fungal nail infection by either histopathology, mycologic culture, or polymerase chain reaction (PCR) were accepted. Results: Of 1653 cases, 185 were onychomycoses, proven by mycologic culture, PCR, or histopathology. Of these, 179 involved at least one big toenail, and 6 affected one or more lesser toenails. Three patients consulted us for another toenail disease, and onychomycosis was diagnosed as a second disease. Eight patients had a pronounced tinea pedum. Relatively few patients had a normal big toe position (n = 9). Most of the cases had a mild to marked hallux valgus (HV) (105) and a hallux valgus interphalangeus (HVI) (143), while hallux erectus was observed in 43 patients, and the combination of HV and HVI was observed 83 times. Discussion: The very high percentage of foot and toe deformations was surprising. It may be hypothesized that this is not only a pathogenetically important factor but may also play an important role in the localization of the fungal infection, as no marked hallux deviation was noted in onychomycoses that affected the lesser toes only. As the management of onychomycoses is a complex procedure involving the exact diagnosis with a determination of the pathogenic fungus, the nail growth rate, the type of onychomycosis, its duration, and predisposing factors, anomalies of the toe position may be important. Among the most commonly mentioned predisposing factors are peripheral circulatory insufficiency, venous stasis, peripheral neuropathy, immune deficiency, and iatrogenic immunosuppression, whereas foot problems are not given enough attention. Unfortunately, many of these predisposing and aggravating factors are difficult to treat or correct. Generally, when explaining the treatment of onychomycoses to patients, the importance of these orthopedic alterations is not or only insufficiently discussed. In view of the problems encountered with the treatment of toenail mycoses, this attitude should be changed in order to make the patient understand why there is such a low cure rate despite excellent minimal inhibitory drug concentrations in the laboratory.

19.
J Dermatol ; 2024 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-38874465

RESUMO

Onychomycosis, an infectious disease affecting the nails, can spread within oneself and to others, potentially leading to functional disabilities, therefore achieving a complete cure is necessary. Additionally, shared decision making (SDM) has been gaining attention in the treatment of various diseases in recent years. This study aimed to uncover the realities of patient-physician communication and perception in onychomycosis treatment, particularly in setting treatment goals and the SDM process for selecting therapeutic agents. We conducted a web-based survey of both patients and dermatologists to identify issues in the decision-making process for onychomycosis treatment. The survey revealed several communication challenges between patients and dermatologists regarding onychomycosis treatment. First, a notable percentage of dermatologists do not prioritize a complete cure for onychomycosis in their treatment goals. Second, the dermatologists' treatment explanations tended to emphasize risks, information necessary for appropriate decision-making was not adequately conveyed to patients, and SDM practice was insufficient (the mean scores of SDM-Q-9 and SDM-Q-Doc were 49.0 and 70.9, respectively). Third, dermatologists overestimated the reluctance of older patients to take oral medications. Dermatologists should recognize their patients' expectations for a complete cure for onychomycosis and choose a therapeutic agent that meets patients' needs. Furthermore, dermatologists should explain the benefits and risks of treatment options in a balanced manner, strive for improved patient-physician communication, and aim for a complete cure by administering suitable treatment.

20.
Cureus ; 16(5): e59720, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38841013

RESUMO

Onychomycosis, a fungal infection of the nails, presents a significant challenge in clinical management due to its chronic nature and resistance to conventional therapies. This study aims to evaluate the efficacy of laser therapy in treating onychomycosis compared to traditional methods such as terbinafine. A systematic review and meta-analysis were conducted to analyze existing literature on the subject. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) diagram illustrates the selection process of studies. Findings suggest that laser therapy demonstrates promising results in the treatment of onychomycosis, with comparable efficacy to terbinafine and fewer adverse effects. Further large-scale randomized controlled trials are warranted to validate these findings and establish laser therapy as a standard treatment option for onychomycosis.

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