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Mycoses Apr 2024Onychomycosis is a chronic nail disorder commonly seen by healthcare providers; toenail involvement in particular presents a treatment challenge. (Review)
Review
BACKGROUND
Onychomycosis is a chronic nail disorder commonly seen by healthcare providers; toenail involvement in particular presents a treatment challenge.
OBJECTIVE
To provide an updated estimate on the prevalence of toenail onychomycosis.
METHODS
We conducted a literature search using PubMed, Embase and Web of Science. Studies reporting mycology-confirmed diagnoses were included and stratified into (a) populations-based studies, and studies that included (b) clinically un-suspected and (c) clinically suspected patients.
RESULTS
A total of 108 studies were included. Based on studies that examined clinically un-suspected patients (i.e., with or without clinical features suggestive of onychomycosis), the pooled prevalence rate of toenail onychomycosis caused by dermatophytes was 4% (95% CI: 3-5) among the general population; special populations with a heightened risk include knee osteoarthritis patients (RR: 14.6 [95% CI: 13.0-16.5]), chronic venous disease patients (RR: 5.6 [95% CI: 3.7-8.1]), renal transplant patients (RR: 4.7 [95% CI: 3.3-6.5]), geriatric patients (RR: 4.7 [95% CI: 4.4-4.9]), HIV-positive patients (RR: 3.7 [95% CI: 2.9-4.7]), lupus erythematosus patients (RR: 3.1 [95% CI: 1.2-6.3]), diabetic patients (RR: 2.8 [95% CI: 2.4-3.3]) and hemodialysis patients (RR: 2.8 [95% CI: 1.9-4.0]). The prevalence of onychomycosis in clinically suspected patients was significantly higher likely due to sampling bias. A high degree of variability was found in a limited number of population-based studies indicating that certain pockets of the population may be more predisposed to onychomycosis. The diagnosis of non-dermatophyte mould onychomycosis requires repeat sampling to rule out contaminants or commensal organisms; a significant difference was found between studies that performed single sampling versus repeat sampling. The advent of PCR diagnosis results in improved detection rates for dermatophytes compared to culture.
CONCLUSION
Onychomycosis is an underrecognized healthcare burden. Further population-based studies using standardized PCR methods are warranted.
Topics: Humans; Aged; Onychomycosis; Prevalence; Nails; Diabetes Mellitus; Kidney Transplantation
PubMed: 38606891
DOI: 10.1111/myc.13725 -
Revista Chilena de Pediatria Feb 2020Onychomycosis (OM) is a fungal infection of the nails, whose main etiologic agent is Trichophytum rubrum. Although, it is an unusual pathology in children, in the last... (Review)
Review
Onychomycosis (OM) is a fungal infection of the nails, whose main etiologic agent is Trichophytum rubrum. Although, it is an unusual pathology in children, in the last years an increase in its preva lence has been observed. To date, there are several studies and clinical guidelines for OM in adults. However, literature in children is scarce, which makes pediatric treatment difficult. The objective of this publication was to review the current literature in order to establish diagnostic methods for OM, national and international epidemiological data, and to provide treatment options taking into account their efficiency and safety profile in the pediatric population.
Topics: Adolescent; Antifungal Agents; Child; Child, Preschool; Global Health; Humans; Infant; Onychomycosis; Pediatrics
PubMed: 32730424
DOI: 10.32641/rchped.v91i1.1309 -
Current Opinion in Pediatrics Aug 2020Nail disorders represent an uncommon subset of complaints seen in pediatric dermatology. There is a wide array of disorders that can affect the nail unit in children,... (Review)
Review
PURPOSE OF REVIEW
Nail disorders represent an uncommon subset of complaints seen in pediatric dermatology. There is a wide array of disorders that can affect the nail unit in children, including infectious, inflammatory, neoplastic, congenital, and traumatic processes. In order to enhance familiarity with pediatric nail conditions, we review the background and treatment of the more common entities seen in pediatric onychology, including onychomycosis, onychomadesis, nail psoriasis, trachyonychia, longitudinal melanonychia, onychophagia, and onychocryptosis.
RECENT FINDINGS
Nail involvement in pediatric patients with psoriasis may indicate increased risk for both overall disease severity and the development psoriatic arthritis. In the evaluation of longitudinal melanonychia, the clinical findings that raise concern for subungual melanoma in adults are often found in benign nail unit nevi in children. In the systemic treatment of pediatric onychomycosis, new data raises the possibility that laboratory monitoring may be approached differently. In the approach to onychophagia, emerging pharmacotherapies include N-acetylcysteine.
SUMMARY
Most nail disorders in pediatric patients have an overall favorable prognosis. However, nail abnormalities can lead to patient and parental anxiety, decreased quality of life, pain, and functional impairment. Clinicians should be aware of these more common diverse entities in order to identify them and apply state of the art management for these issues. Additionally, the reader will learn factors related to these nail disorders, which may require systemic work-up and/or specialist referral.
Topics: Adult; Animals; Child; Humans; Melanoma; Nail Diseases; Onycholysis; Onychomycosis; Presbytini; Psoriasis; Quality of Life
PubMed: 32692049
DOI: 10.1097/MOP.0000000000000921 -
Dermatologic Therapy Jul 2022Prevalence of onychomycosis increases in patients with psoriasis and that psoriasis predisposes to onychomycosis. It was aimed to determine the frequency of...
Prevalence of onychomycosis increases in patients with psoriasis and that psoriasis predisposes to onychomycosis. It was aimed to determine the frequency of onychomycosis and responsible pathogens in patients with psoriasis, to reveal their differences compared to the population without psoriasis, and to determine the factors in this study. The study included 81 patients with nail disorder diagnosed with psoriasis. Clinical findings, psoriasis area and severity index (PASI), nail psoriasis severity index (NAPSI) scores, body mass indexes (BMI) and laboratory characteristics were recorded. Mycological examination by direct microscopy and fungal culture was performed both on nails that were considered onychomycosis and on nails with any of the psoriatic nail findings. The prevalence of onychomycosis was 27.2% in psoriasis patients. Nail involvement of psoriasis was found in 31.3% of the patients using biologic agents, 5.9% of those receiving conventional treatment, and 31.3% of those receiving topical treatment and 68.8% of the patients who did not receive treatment at all. The difference between the patients who did not receive treatment and those who received conventional treatment was significant (p < 0.05). There was growth in the fungal culture in 23.5% of the patients with psoriasis. There was no statistically significant relationship between onychomycosis and PASI, NAPSI score, and BMI (p > 0.05). Since the prevalence of onychomycosis in psoriasis patients receiving conventional and anti-TNF-α therapy is higher than in patients not receiving treatment, nail changes in these patients should be evaluated in more detail for the presence of onychomycosis. In addition, since more than one fungal agent can grow and non-dermatophyte molds are seen more frequently in patients with psoriasis, it should be taken into account that native and fungal culture examinations should be performed together.
Topics: Biological Factors; Humans; Nail Diseases; Nails; Onychomycosis; Psoriasis; Tumor Necrosis Factor Inhibitors
PubMed: 35426221
DOI: 10.1111/dth.15513 -
Der Hautarzt; Zeitschrift Fur... Oct 2021
Topics: Dermatomycoses; Humans; Mycoses; Nails; Onychomycosis; Skin
PubMed: 34554287
DOI: 10.1007/s00105-021-04886-2 -
Skinmed 2020Onychomycosis was first described in the mid-1800's, and early treatment regimens involved applying corrosive substances and nail plate avulsion. It was not until the... (Review)
Review
Onychomycosis was first described in the mid-1800's, and early treatment regimens involved applying corrosive substances and nail plate avulsion. It was not until the mid-1900's that more specific antifungal agents were utilized. Initially, only oral drugs were used, with ciclopirox 8% solution later approved in 1999. Presently, terbinafine, itraconazole, and fluconazole (off-label) are used for systemic onychomycosis therapy in the US, and topicals include ciclopirox, efinaconazole and tavaborole. Devices, topicals with new mechanisms of action, and oral medications with potentially better efficacy are now being explored for treatment of onychomycosis.
Topics: Administration, Topical; Antifungal Agents; Humans; Itraconazole; Nail Diseases; Onychomycosis; Terbinafine; Triazoles
PubMed: 33397567
DOI: No ID Found -
The Medical Letter on Drugs and... Oct 2021
Topics: Antifungal Agents; Drug Interactions; Humans; Laser Therapy; Onychomycosis; Photochemotherapy
PubMed: 35050243
DOI: No ID Found -
Journal of Fungi (Basel, Switzerland) Jan 2022Onychomycosis is a common fungal infection of the nail, caused by dermatophytes, non-dermatophytes, and yeasts. Predisposing factors include older age, trauma, diabetes,... (Review)
Review
Onychomycosis is a common fungal infection of the nail, caused by dermatophytes, non-dermatophytes, and yeasts. Predisposing factors include older age, trauma, diabetes, immunosuppression, and previous history of nail psoriasis or tinea pedis. Though many biological risk factors have been well characterized, the role of the environment has been less clear. Studies have found evidence of transmission in 44% to 47% of households with at least one affected individual, but the underlying mechanisms and risk factors for transmission of onychomycosis between household members are incompletely understood. A scoping literature review was performed to characterize and summarize environmental risk factors involved in the transmission of onychomycosis within households. A total of 90 papers met the inclusion criteria, and extracted data was analyzed in an iterative manner. Shared household surfaces may harbor dermatophytes and provide sources for infection. Shared household equipment, including footwear, bedding, and nail tools, may transmit dermatophytes. The persistence of dermatophytes on household cleaning supplies, linen, and pets may serve as lasting sources of infection. Based on these findings, we provide recommendations that aim to interrupt household transmission of onychomycosis. Further investigation of the specific mechanisms behind household spread is needed to break the cycle of transmission, reducing the physical and social impacts of onychomycosis.
PubMed: 35050000
DOI: 10.3390/jof8010060 -
Mycoses Jun 2023A systematic review was conducted to investigate the prevalence of onychomycosis in patients with diabetes. The association of onychomycosis with risk factors in... (Review)
Review
BACKGROUND
A systematic review was conducted to investigate the prevalence of onychomycosis in patients with diabetes. The association of onychomycosis with risk factors in patients with diabetic foot syndrome was also examined.
METHODS
The recommendations in the preferred reporting items for systematic reviews and meta-analysis (PRISMA) checklist were applied, and the included studies were assessed using the Strengthening the Reporting of Observational studies in Epidemiology (STROBE) method. Searches were conducted in October 2022 using PubMed (Medline) and Scopus for clinical studies, clinical trials, comparative studies, observational studies, and randomised clinical trials or controlled clinical trials addressing the prevalence and consequences of onychomycosis in patients with diabetes, diagnoses or treatments. Two authors performed the study selection and data extraction, and any discrepancies between the two reviewers were resolved through discussion with a third reviewer.
RESULTS
The systematic review included ten studies that met the inclusion criteria, and these studies enrolled 5664 patients with diabetes. Among these patients, 29.18% had onychomycosis that was mainly caused by Trichophyton rubrum. A significant association was found between the occurrence of onychomycosis and the presence of diabetic neuropathy (p = .012) and elevated glycosylated haemoglobin values (p = .039). There was no significant association between onychomycosis and ulceration (p = .185). Eight studies had a grade 4 level of evidence and a grade C recommendation, and one study had a grade 1b level of evidence and a grade A recommendation.
CONCLUSION
The information described in the literature is insufficient and heterogeneous regarding the association of risk factors and ulceration in patients with diabetic foot compared with developing onychomycosis. There is also a need to implement onychomycosis diagnostic testing instead of relying only on a clinical diagnosis. Additional prospective, randomised, comparative studies are needed to increase the quality of studies in the literature.
Topics: Humans; Diabetic Foot; Onychomycosis; Prospective Studies; Risk Factors; Diabetes Mellitus
PubMed: 36790078
DOI: 10.1111/myc.13577 -
Journal of Wound, Ostomy, and... 2019Toenail disorders account for the majority of foot complaints for which adults seek medical care. Onychomycosis, a fungal nail infection, is the most prevalent....
Toenail disorders account for the majority of foot complaints for which adults seek medical care. Onychomycosis, a fungal nail infection, is the most prevalent. Dermatophytes are responsible for the majority of nail infections and cause varying degrees of nail deformities. While several treatment strategies are available, no one approach (topical, systemic, or mechanical) is highly curative. This article reviews causes, diagnosis, and treatment options for onychomycosis and provides patient education tips to prevent and limit the spread of the disease.
Topics: Administration, Topical; Antifungal Agents; Humans; Laser Therapy; Onychomycosis
PubMed: 31274864
DOI: 10.1097/WON.0000000000000556