Publications by authors named "Kwong B"

Article Synopsis
  • A study investigated the safety and efficacy of combining regorafenib and low-dose methotrexate for patients with advanced -mutant NSCLC, as there are limited treatment options available beyond G12C inhibitors.
  • The study included 18 patients, revealing a median progression-free survival of 3.7 months and a median overall survival of 10.4 months, with a 16.7% objective response rate.
  • The treatment caused notable toxicity, leading to dose adjustments and discontinuations; consequently, the study did not meet its primary goal of improving progression-free survival.
View Article and Find Full Text PDF

Cellulitis is a common skin infection often requiring antibiotic treatment. However, misdiagnosis and inappropriate antibiotic use contribute to antibiotic resistance and healthcare costs. We aimed to evaluate the impact of dermatology consultation on treatment modification in patients with suspected cellulitis and to determine whether dermatologists' evaluation can be used as a reference to diagnose suspected cellulitis.

View Article and Find Full Text PDF

Background: There is a need for unified guidance in the management of acneiform rash induced by epidermal growth factor receptor inhibitors (EGFRi) among dermatologists.

Objective: To establish unified international guidelines for the management of acneiform rash caused by EGFR inhibitors, based on an experts' Delphi consensus.

Methods: The initiative was led by five members of the European Academy of Dermatology and Venereology Task Force 'Dermatology for Cancer Patients' who developed a questionnaire that was circulated to a group of 32 supportive oncodermatology experts in Europe, Canada, Argentina, the US States and Asia.

View Article and Find Full Text PDF

Introduction: Cutaneous adverse reactions to epidermal growth factor receptor inhibitors (EGFRi) are some of the most common side effects that patients experience. However, cutaneous adverse reactions that cause dyspigmentation in patients have been rarely reported. Erythema dyschromicum perstans (EDP) is a rare pigmentary condition that causes ashy-grey hyperpigmented macules and patches, with a few cases reported from EGFRi in the literature.

View Article and Find Full Text PDF

With an increasing number of patients eligible for immune checkpoint inhibitors, the incidence of immune-related adverse events (irAEs) is on the rise. Dermatologic immune-related adverse events (D-irAEs) are the most common and earliest to manifest, often with important downstream consequences for the patient. Current guidelines lack clarity in terms of diagnostic criteria for D-irAEs.

View Article and Find Full Text PDF

Importance: Previous studies have suggested that radiation therapy may contribute to an increased risk of subsequent nonkeratinocyte (ie, not squamous and basal cell) skin cancers.

Objective: To test the hypothesis that radiation therapy for breast cancer increases the risk of subsequent nonkeratinocyte skin cancers, particularly when these cancers are localized to the skin of the breast or trunk.

Design, Setting, And Participants: This population-based cohort study used longitudinal data from the Surveillance, Epidemiology, and End Results (SEER) Program for January 1, 2000, to December 31, 2019.

View Article and Find Full Text PDF

Most cellular ubiquitin signaling is initiated by UBA1, which activates and transfers ubiquitin to tens of E2 enzymes. Clonally acquired UBA1 missense mutations cause an inflammatory-hematologic overlap disease called VEXAS (vacuoles, E1, X-linked, autoinflammatory, somatic) syndrome. Despite extensive clinical investigation into this lethal disease, little is known about the underlying molecular mechanisms.

View Article and Find Full Text PDF

Hyperglycemia and rash are expected but challenging adverse events of phosphatidylinositol-3-kinase inhibition (such as with alpelisib). Two modified Delphi panels were conducted to provide consensus recommendations for managing hyperglycemia and rash in patients taking alpelisib. Experts rated the appropriateness of interventions on a 1-to-9 scale; median scores and dispersion were used to classify the levels of agreement.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates vitiligo-like skin lesions in patients undergoing treatment with CDK4/6 inhibitors for metastatic breast cancer, noting their prevalence and impact on quality of life.* -
  • A retrospective review involved ten patients from five institutions, revealing that the median age was 55 and that lesions primarily developed on sun-exposed areas after about 10 months of treatment.* -
  • Although multiple treatments were trialed with limited success, ruxolitinib cream showed slight repigmentation in one patient, emphasizing the need for collaboration between oncologists and dermatologists for better management.*
View Article and Find Full Text PDF

Most cellular ubiquitin signaling is initiated by UBA1, which activates and transfers ubiquitin to tens of E2 enzymes. Clonally acquired missense mutations cause an inflammatory-hematologic overlap disease called VEXAS (vacuoles, E1, X-linked, autoinflammatory, somatic) syndrome. Despite extensive clinical investigation into this lethal disease, little is known about the underlying molecular mechanisms.

View Article and Find Full Text PDF

Background: In-hospital dermatological care has shifted from dedicated dermatology wards to consultation services, and some consulted patients may require postdischarge follow-up in outpatient dermatology. Safe and timely care transitions from inpatient-to-outpatient specialty care are critical for patient health, but communication around these transitions can be disjointed, and workflows can be complex.

Objective: In this 3-phase quality improvement effort, we developed and evaluated an intervention that leveraged an electronic health record (EHR) feature, known as SmartPhrase, to enable a new workflow to improve transitions from inpatient care to outpatient dermatology.

View Article and Find Full Text PDF

Background: Currently, surgical resection is the mainstay for colorectal liver metastases (CRLM) management and the only potentially curative treatment modality. Prognostication tools can support patient selection for surgical resection to maximize therapeutic benefit. This study aimed to develop a survival prediction model using machine learning based on a multicenter patient sample in Hong Kong.

View Article and Find Full Text PDF

Keratinocytic cancers (KCs), specifically cutaneous squamous cell and basal cell carcinomas, can respond to topical, intralesional, or systemic immunotherapies, but cutaneous adverse events (CAEs) may occur. Understanding these risks, early recognition of these CAEs, and effective treatment may enable patients to continue their anticancer immunotherapies without dose impact. Immune checkpoint inhibitor-related CAEs after KCs can have multiple clinical presentations, with specific observed types including psoriasis and bullous pemphigoid.

View Article and Find Full Text PDF

Importance: The US health care system generates substantial global waste. Skin biopsies are frequently performed by dermatologists and represent a practical and scalable opportunity for waste reduction interventions in dermatology clinics.

Objective: To develop and implement a systematic framework for decreasing skin biopsy tray waste in dermatology clinics.

View Article and Find Full Text PDF

Introduction The authors sought to evaluate cost differences between shoulder arthroplasties and lower-extremity joint replacements in the outpatient and inpatient setting within a large health-maintenance organization. Methods A cross-sectional study of 100 total hip arthroplasties (THA), 100 total knee arthroplasties (TKA), and 100 shoulder arthroplasties (50 anatomical total shoulder arthroplasties and 50 reverse shoulder arthroplasties [RTSA]) was performed at a single regional health care center within an integrated health care maintenance organization. A time-driven activity-based costing methodology was used to obtain total cost of each episode for outpatient (vs) inpatient surgery.

View Article and Find Full Text PDF

Background: Both clinicians and patients have increasingly turned to telemedicine to improve care access, even in physical examination-dependent specialties such as dermatology. However, little is known about whether teledermatology supports effective and timely transitions from inpatient to outpatient care, which is a common care coordination gap.

Objective: Using mixed methods, this study sought to retrospectively evaluate how teledermatology affected clinic capacity, scheduling efficiency, and timeliness of follow-up care for patients transitioning from inpatient to outpatient dermatology care.

View Article and Find Full Text PDF

The CCR4-directed monoclonal antibody mogamulizumab has been shown to significantly improve progression-free survival and overall response rate compared with vorinostat in adults with relapsed/refractory mycosis fungoides (MF) and Sézary syndrome (SS). One of the most common adverse events seen with mogamulizumab in MF/SS patients is rash. Because of the protean nature of MF/SS and the variable clinical and histopathological features of mogamulizumab-associated rash, healthcare providers may have difficulty distinguishing rash from disease, and may not be aware of appropriate treatment strategies for this generally manageable adverse event.

View Article and Find Full Text PDF

Background: Clinical trials report occurrence of nonmelanoma skin cancers (NMSCs) with ruxolitinib in patients with polycythemia vera (PV) or myelofibrosis (MF); however, the level of risk and effect of covariates are not known in the real-world setting.

Objective: To systematically assess the risk of developing NMSC after ruxolitinib exposure in patients with PV or MF.

Methods: A 10-year retrospective cohort of patients with PV or MF at Stanford Medical Center was identified and matched according to age, gender, race, Charlson Comorbidity Index, disease diagnosis, and follow-up time.

View Article and Find Full Text PDF

Cutaneous reactive angiomatosis, a group of disorders defined by benign vascular proliferation, is associated with a number of systemic processes, including intravascular occlusion by cryoproteins. We report a case of a 64-year-old female patient who presented with a 1-year history of nontender petechiae of the bilateral arms and lower legs. Dermoscopic evaluation showed increased vascularity with a globular pattern.

View Article and Find Full Text PDF