Publications by authors named "Quint K"

Article Synopsis
  • Identifying early-stage mycosis fungoides (MF), a type of skin cancer, is hard because it looks a lot like harmless skin conditions.
  • Researchers are using deep learning (DL), a type of computer technology, to help doctors tell the difference between MF and these benign conditions by looking at images from skin biopsies.
  • The study showed that this DL method can get pretty close to the accuracy of expert doctors, which is promising for improving cancer diagnoses in the future.
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Article Synopsis
  • * Findings reveal that 29% of these patients developed at least one other primary malignancy, with notably higher risks for cutaneous and haematological cancers compared to the general population.
  • * Specifically, patients are at a significantly increased risk for melanomas and squamous cell carcinomas, while no link was found to other solid organ tumors, highlighting the need for clinicians to monitor these risks closely.
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Objectives: Confocal laser endomicroscopy (CLE) is an intraoperative real-time cellular resolution imaging technology that images brain tumor histoarchitecture. Previously, we demonstrated that CLE images may be interpreted by neuropathologists to determine the presence of tumor infiltration at glioma margins. In this study, we assessed neurosurgeons' ability to interpret CLE images from glioma margins and compared their assessments to those of neuropathologists.

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Objectives: To evaluate the efficacy of topical miconazole or amorolfine compared to placebo for mild to moderately severe onychomycosis.

Design: Randomised, double-blind, placebo-controlled trial, with computer-generated treatment allocation at a 1:1:1 ratio.

Setting: Primary care, recruitment from February 2020 to August 2022.

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Introduction: Diabetic foot ulcers are feared complications of diabetes mellitus (DM), requiring extensive treatment and hospital admissions, ultimately leading to amputation and increased mortality. Different factors contribute to the development of foot ulcers and related complications. Onychomycosis, being more prevalent in patients with diabetes, could be an important risk factor for developing ulcers and related infections.

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Background: Little is known about the impact of MF on quality of life (QoL) in newly diagnosed patients.

Objectives: To describe the impact of the MF diagnosis on QoL, patient expectations, and treatment satisfaction over the first 6 months after diagnosis.

Methods: Outcomes of this prospective cohort study of newly diagnosed MF patients conducted between 2020 and 2022 at the Leiden University Medical Center included the Skindex-29, RAND-12 Health Survey, degree of itch, pain, and fatigue (Visual Analogue Scale (VAS)), patient expectations, and Client Satisfaction Questionnaire-8 (CSQ-8), measured at baseline and after six months.

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Onychomycosis is the most prevalent nail disease and is frequently encountered in clinical practice. Despite having multiple therapeutic options, of which systemic antifungals are the most effective, treatment is not always mandatory in all patients. Especially when considering systemic treatment, the risk of adverse reactions may outweigh the potential benefits of treatment.

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Wildlife conservation strategies focused on one season or population segment may fail to adequately protect populations, especially when a species' habitat preferences vary among seasons, age-classes, geographic regions, or other factors. Conservation of golden eagles (Aquila chrysaetos) is an example of such a complex scenario, in which the distribution, habitat use, and migratory strategies of this species of conservation concern vary by age-class, reproductive status, region, and season. Nonetheless, research aimed at mapping priority use areas to inform management of golden eagles in western North America has typically focused on territory-holding adults during the breeding period, largely to the exclusion of other seasons and life-history groups.

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Background: Molluscum contagiosum (MC) can cause significant burden in children. So far, pharmacological treatment has not been proven beneficial. More rigorous interventions have not been well studied.

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Article Synopsis
  • Erythrodermic mycosis fungoides and Sézary syndrome are chronic skin diseases that significantly lower patients' quality of life, leading to a need for effective treatments.
  • Mogamulizumab is a new treatment for cutaneous T-cell lymphomas that improves progression-free survival and has been shown to relieve symptoms of the disease.
  • A study involving interviews with seven patients highlighted the major impacts of E-CTCL on diagnosis delays, physical, psychological, and social functioning, and found that mogamulizumab treatment led to improved symptoms, despite the small sample size.
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Mycosis fungoides and Sézary syndrome are rare and largely incurable types of cutaneous T-cell lymphoma with limited therapeutic options. In 1984 Bunn et al. reported that interferon alpha is an efficient monotherapy in cutaneous T-cell lymphoma and 14 years later it was shown in a prospective, randomized trial that a combination of interferon alpha and psoralen plus ultraviolet A therapy (PUVA) is most efficient in the treatment of cutaneous T-cell lymphoma.

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Objective: Confocal laser endomicroscopy (CLE) is a US Food and Drug Administration-cleared intraoperative real-time fluorescence-based cellular resolution imaging technology that has been shown to image brain tumor histoarchitecture rapidly in vivo during neuro-oncological surgical procedures. An important goal for successful intraoperative implementation is in vivo use at the margins of infiltrating gliomas. However, CLE use at glioma margins has not been well studied.

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Wound healing of deep burn injuries is often accompanied by severe scarring, such as hypertrophic scar (HTS) formation. In severe burn wounds, where the subcutis is also damaged, the scars adhere to structures underneath, resulting in stiffness of the scar and impaired motion. Over the recent years, a promising solution has emerged: autologous fat grafting, also known as lipofilling.

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Confocal laser endomicroscopy (CLE) represents a new non-invasive imaging technique that holds considerable promise in neurosurgery and neuropathology. CLE is based on the principle of optical sectioning which uses pinholes placed in the light path to selectively image photons of a specific focal plane by filtering out photons above and below the focal plane. Potential indications of CLE in neurosurgery and neuropathology include intraoperative tumor diagnosis and staging as well as assessment of tumor resection margins notably in the case of diffusely infiltrating gliomas.

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Background: Onychomycosis, the most common cause of nail dystrophy, is generally diagnosed by clinical examination. Current guidelines for Dutch general practice advise confirmatory testing only in cases of doubt or insufficient response to treatment. However, making a correct diagnosis can be challenging given the wide variety of clinical features and differential diagnosis.

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Background: Solid organ-transplant recipients (SOTR) have an increased risk of cutaneous squamous-cell carcinoma (cSCC), metastasis and death from cSCC. In immunocompetent patients with mucosal SCC, downregulation of HLA class I is associated with poor prognosis. Since the degree of HLA expression on tumor cells could play a role in immunogenicity and pathophysiology of cSCC metastasis, we hypothesized that decreased HLA expression is associated with an increased risk of metastasis.

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Background: Erythrodermic cutaneous T-cell lymphoma (E-CTCL) is associated with a poor prognosis and severe symptoms.

Objective: To establish insights into the quality of life (QoL), expectations, and treatment satisfaction of E-CTCL patients receiving mogamulizumab.

Methods: Outcomes of this prospective cohort study conducted between September 2020 and August 2021 at the Leiden University Medical Center included the dermatology-specific QoL (Skindex-29), health-related QoL (RAND-12), degree of itch, pain, and fatigue (Visual Analogue Scale), patient's expectations, and treatment satisfaction (Client Satisfaction Questionnaire-8 (CSQ-8)), measured at baseline and after six months.

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Article Synopsis
  • Mycosis fungoides (MF) is a type of skin cancer characterized by malignant CD4 T-cells, but the interactions of these cells with the skin's immune environment remain poorly understood.
  • Researchers used a non-invasive tape stripping method to analyze cytokine levels in the skin of patients with MF, atopic dermatitis (AD), and healthy controls, finding notable differences in cytokine secretion patterns.
  • The study concluded that while certain pro-inflammatory cytokines are present in MF lesions, there is no distinct cytokine profile that can differentiate MF from AD, indicating that tape stripping cannot effectively diagnose MF based on skin cytokine levels.
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  • A study analyzed 73 biopsies from 57 PCDLBCL-LT patients using advanced genetic methods, revealing that 95% had significant genetic alterations associated with the disease.
  • The ongoing presence of these genetic mutations suggests that targeted therapies could be developed, potentially enhancing patient monitoring and intervention strategies to improve outcomes for those with this challenging lymphoma.
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