Vipawee S Chat

• Doctor of Medicine
• University of Southern California

Background: Language proficiency plays an important role in healthcare choices and access. Differences in access to biologic medications exist, but it is unknown how much English proficiency influences access in US psoriasis patients. Objective: To compare biologic medication use for psoriasis patients with differing English proficiency levels. Met...

Background: Little is known regarding differential effects of systemic anti-acne treatments on mental health. Objective: To determine whether differences exist in mental health outcomes between acne patients treated with isotretinoin versus oral antibiotics (doxycycline, minocycline, or tetracycline). Methods: Population study utilizing the 20...

Decision‐framing describes how choices are presented or framed.¹ A choice can be worded either positively (gain‐framed) to explain the benefits of a therapy, or negatively (loss‐framed) to explain the risks of not taking a therapy. In the management of chronic diseases, patients’ agreement with clinician recommendations during the shared decision m...

Background As the U.S. becomes more diverse, determining differences in healthcare utilization and costs of managing skin cancers is fundamental to decision-making in healthcare resource allocation and improving care for underserved populations. Objective To compare healthcare use and costs among non-Hispanic white, Hispanic white, and non-Hispani...

Background: Conflicting evidence exists regarding the role of race in access to biologics for patients with psoriasis. Objective: To compare biologic use among adult and pediatric United States psoriasis patients of different racial backgrounds. Methods: Population-based study of US psoriasis patients using the 2003 to 2018 Medical Expenditure...

In April 2019, the American Academy of Dermatology (AAD) and the National Psoriasis Foundation (NPF) released a set of guidelines regarding the management of psoriasis with a focus on its extracutaneous manifestations-comorbidities, mental health, psychosocial wellness, and quality of life (QOL). These guidelines provide the most up-to-date evidenc...

Background: Interleukin (IL)-17 inhibitors are a newer class of biologic used to treat patients with moderate-to-severe plaque psoriasis and psoriatic arthritis. Objective: We compared evidence-based clinical practice guidelines (CPGs) from leading dermatological organizations for the use of IL-17 inhibitors in psoriasis. Methods: Guidelines f...

Purpose The aim of this review is to compare and contrast evidence‐based clinical practice guidelines from global dermatological organizations for the use of ustekinumab in psoriasis. Materials and methods Clinical practice guidelines from the American Academy of Dermatology (AAD), National Psoriasis Foundation (NPF), British Association of Dermat...

While interleukin‐17 (IL‐17) inhibitors are effective for many patients with psoriasis, there is limited real‐world data characterizing patients who respond or do not respond to this biologic class.1 Identification of patient characteristics associated with response to this class of medication would present a significant advantage for both patients...

In 2020, the American Academy of Dermatology (AAD) and the National Psoriasis Foundation (NPF) released a set of guidelines for the management of psoriasis in adults with systemic nonbiologic therapies, including acitretin, apremilast, cyclosporine, fumaric acid esters, methotrexate, and tofacitinib. This review addresses dosing, efficacy, toxicity...

Background: Many patients with atopic dermatitis seek care from both primary care physicians and dermatologists. However, little is known regarding topical corticosteroid prescribing patterns among these specialties. Objective: We sought to determine if differences exist in topical corticosteroid prescribing patterns among dermatologists, family m...

Mild to moderate atopic dermatitis (AD) occurs frequently in children and adults and is usually managed through the use of pharmacologic treatments, such as topical corticosteroids (TCS) and topical calcineurin inhibitors (TCIs), and good skin care practices. As chronic TCS or TCI can lead to the development of adverse effects, there is a need for...

In July 2019, the American Academy of Dermatology (AAD) and the National Psoriasis Foundation (NPF) released an updated set of guidelines regarding the use of phototherapy to manage adult patients with psoriasis. Treatment with light of various wavelengths is reviewed, with a focus on modalities utilizing UV light. These guidelines provide the most...

Psoriasis is a systemic immune-mediated inflammatory disease that requires consistent treatment and follow-up. Given that COVID-19 will persist in the coming years, dermatologists need to adjust their practices accordingly to care for their patients, particularly psoriasis patients managed with systemic therapies. We provide guidelines for optimizi...

Biologic medications are recent advances that have clinical significance in the treatment of moderate-to-severe AD. A systemic literature review was performed to examine the efficacy and safety of biologic therapies currently in phase II and phase III of clinical trials for moderate-to-severe AD. Our team searched the databases, PubMed, Google Scho...

Background: In late 2019 a viral pneumonia began to spread across the world. The viral disease, COVID-19, is now officially a pandemic, causing concern for the potential risk of systemic therapies for patients with psoriasis. Objective: The purpose of this review is to analyze what is currently known about COVID-19 in regard to the safety of system...

Background: Generalized pustular psoriasis (GPP) is an uncommon variant of psoriasis that is characterized clinically by sterile pustule formation superimposed over inflamed, erythematous skin. Methods: In June 2019, we conducted a systematic search of the PubMed Medline database using the keywords “pustular psoriasis” and “treatment.” Results: Fir...

Malignant conversion of sinonasal inverted papilloma (SNIP) occurs in approximately ten percent of cases. These tumors are classically described as locally destructive, but without metastatic potential. Only four cases of malignant conversion with cervical nodal metastases have been described in the English literature. We present the rare case of a...