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Choi E, Du R, Yew YW, Long V, Oon HH, Chandran NS, Phan P, Chan YH, Valderas JM. Development and validation of the Dermatology Social Comparison (DSC) Scale. Int J Dermatol 2024. [PMID: 38594911 DOI: 10.1111/ijd.17146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Social comparison, the process of evaluating one's characteristics in relation to others, influences individuals' self-perception and behavior. However, instruments are scarce for assessing social comparison in the medical setting. OBJECTIVES Our aim was to develop and validate a new scale for assessing social comparison. MATERIALS AND METHODS Seven statements were developed, encompassing the perceived normality of having rashes, the tendency to compare their situation with others, and the emotional response when seeing someone better or worse off than themselves. The instrument was piloted in 15 patients for readability and face validity, then prospectively validated using modern psychometric methods in 1,053 adult patients with eczema or psoriasis from three tertiary dermatological centers in Singapore. RESULTS Of 1,053 adult patients, 802 (76.2%) had eczema, and 251 (23.8%) had psoriasis. Exploratory factor analysis (using a 70% sample split) showed a single factor model comprising three questions (Eigenvalue: 1.4). Confirmatory factor analysis with the remaining 30% of the sample confirmed an excellent model fit. Cronbach's alpha was 0.7, and inter-item correlations ranged from 0.42 to 0.46. In the Rasch analysis, item fit statistics and item characteristic curves showed appropriate discrimination between response options, although reliability was suboptimal with a person separation reliability of 0.63. CONCLUSIONS Comprising 3 questions, the newly derived social comparison scale showed acceptable psychometrics as a measure of social comparison for clinical and research purposes in dermatology. Its brief nature likely results from its brevity and applicability to conditions beyond eczema and psoriasis, which warrants further investigation.
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Affiliation(s)
- Ellie Choi
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ruochen Du
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yik W Yew
- Dermatology, National Skin Centre, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Valencia Long
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore, Singapore
| | - Hazel H Oon
- Dermatology, National Skin Centre, Singapore, Singapore
| | - Nisha S Chandran
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Phillip Phan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Carey Business School, Johns Hopkins University, Baltimore, USA
| | - Yiong H Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jose M Valderas
- Centre for Research in Health System Performance, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Family Medicine, National University Healthcare System, Singapore, Singapore
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Natoli A, Jones MD, Long V, Mouatt B, Walker ED, Gibbs MT. How do people with chronic low back pain perceive specific and general exercise? A mixed methods survey. Pain Pract 2024. [PMID: 38379359 DOI: 10.1111/papr.13354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
PURPOSE Exercise prescriptions for chronic low back pain (CLBP) often utilize reductionistic, trunk-focused exercise aimed at addressing proposed pain mechanisms. It is unknown if the use of these trunk-focused exercises imply beliefs to people with CLBP about the rationale for their use (e.g., etiology), even without concurrent biomedical narratives. This study aimed to explore people's perceptions of specific and general exercise without an accompanying narrative when experiencing CLBP. METHODS An anonymous online survey was distributed. Mixed methods were utilized for analysis. Six-point Likert scales categorized people's beliefs about individual exercises. Open-ended questions were used to gather further beliefs which were then coded into themes. RESULTS People with CLBP perceived specific exercise as more beneficial than general exercise. Eight themes and five subthemes were defined. A high volume of positive beliefs were centered around strengthening the low back and abdominal musculature, emphasizing the importance of correct technique. Negative beliefs were held against spinal flexion and external load. Both positive and negative beliefs were underpinned by spinal/pelvic stability being important as well as certain exercises being achievable or not. CONCLUSION This study demonstrated that people with CLBP consider specific exercises to be more beneficial than general exercises for CLBP. Specific exercises irrespective of an accompanying narrative can imply meaning about the intent of an exercise. Understanding this requires practitioners to be mindful when prescribing and communicating exercise.
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Affiliation(s)
- A Natoli
- School of Health Sciences, Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
| | - M D Jones
- School of Health Sciences, Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
- Centre for Pain IMPACT, Neuroscience Research Australia, Randwick, New South Wales, Australia
| | - V Long
- School of Health Sciences, Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
| | - B Mouatt
- IIMPACT in Health, Allied Health and Human Performance, University of South Australia, Adelaide, South Australia, Australia
| | - E D Walker
- School of Health Sciences, Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
| | - M T Gibbs
- School of Health Sciences, Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
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3
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Choi E, Patwardhan KR, Long V, Chan YH, Yew YW, Oon HH, Thng S, Tan C, Chandran NS, Phan P. Patient-physician concordance in age, sex, and race is not associated with increased trust, satisfaction, empathy, or physician's perception of a difficult patient in Singapore. J Am Acad Dermatol 2024; 90:434-436. [PMID: 37866454 DOI: 10.1016/j.jaad.2023.10.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Affiliation(s)
- Ellie Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
| | | | - Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Yiong Huak Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yik Weng Yew
- Dermatology, National Skin Centre, Singapore, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Hazel H Oon
- Dermatology, National Skin Centre, Singapore, Singapore
| | - Steven Thng
- Dermatology, National Skin Centre, Singapore, Singapore
| | - Chris Tan
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Phillip Phan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Carey Business School and Department of Medicine, Johns Hopkins University, Baltimore, Maryland
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Long V, Tham SL, Choi ECE, Chandran NS. Exercise Recommendations for Hidradenitis Suppurativa Patients. Skin Appendage Disord 2023; 9:392-396. [PMID: 37900773 PMCID: PMC10601958 DOI: 10.1159/000532116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/07/2023] [Indexed: 10/31/2023] Open
Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Shuen-Loong Tham
- Department of Rehabilitation Medicine, Tan Tock Seng Hospital, Singapore, Singapore
| | - Ellie Ci-En Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Kellett S, Petrushkin H, Ashworth J, Connor A, McLoone E, Schmoll C, Sharma S, Agorogiannis E, Williams J, Choi J, Injarie A, Puvanachandra N, Watts P, Shafi A, Millar E, Long V, Kumar A, Hughes E, Ritchie A, Gonzalez-Martin J, Pradeep A, Anwar S, Warrior K, Muthusamy B, Pilling R, Benzimra J, Reddy A, Bush K, Pharoah D, Falzon K, O'Colmain U, Knowles R, Tadic V, Dick A, Rahi J, Solebo AL. 2 Pathways to detection of non-infectious childhood uveitis in the UK: findings from the UNICORN cohort study. BMJ Open Ophthalmol 2023; 8:A1. [PMID: 37797997 DOI: 10.1136/bmjophth-2023-biposa.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023] Open
Abstract
INTRODUCTION Prompt detection of childhood uveitis is key to minimising negative impact. From an internationally unique inception cohort, we report pathways to disease detection.UNICORNS is a national childhood non-infectious uveitis study with longitudinal collection of a standardised clinical dataset and patient reported outcomes. Descriptive analysis of baseline characteristics are reported.Amongst 150 recruited children (51% female, 31% non-white ethnicity) age at detection ranged from 2-18yrs (median 10). In 69%, uveitis was diagnosed following onset of symptoms: time from first symptoms to uveitis detection ranged from 0-739days (median 7days), with longer time to detection for those presenting initially to their general practitioner. Non symptomatic children were detected through JIA/other disease surveillance (16%), routine optometry review (5%) or child visual health screening (1%). Commonest underlying diagnoses at uveitis detection were JIA (17%), TINU (9%, higher than pre-pandemic reported UK disease frequency) and sarcoid (1%). 60% had no known systemic disease at uveitis detection. At disease detection, in at least one eye: 34% had structural complications (associated with greater time to detection - 17 days versus 4 days for uncomplicated presentation).The larger relative proportions of children with non-JIA uveitis reported here increase the importance of improving awareness of childhood uveitis amongst the wider clinical communities. There is scope for improvement of pathways to detection. Forthcoming analysis on the full cohort (251 recruited to date across 33 hospitals and 4 nations) will provide nationally representative data on management and the determinants of visual and broader developmental/well-being outcomes.
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Affiliation(s)
- S Kellett
- University College London, Institute of Child Health, UK
| | - H Petrushkin
- University College London, Institute of Child Health, UK
| | - J Ashworth
- University College London, Institute of Child Health, UK
| | - A Connor
- University College London, Institute of Child Health, UK
| | - E McLoone
- University College London, Institute of Child Health, UK
| | - C Schmoll
- University College London, Institute of Child Health, UK
| | - S Sharma
- University College London, Institute of Child Health, UK
| | - E Agorogiannis
- University College London, Institute of Child Health, UK
| | - J Williams
- University College London, Institute of Child Health, UK
| | - J Choi
- University College London, Institute of Child Health, UK
| | - A Injarie
- University College London, Institute of Child Health, UK
| | | | - P Watts
- University College London, Institute of Child Health, UK
| | - A Shafi
- University College London, Institute of Child Health, UK
| | - E Millar
- University College London, Institute of Child Health, UK
| | - V Long
- University College London, Institute of Child Health, UK
| | - A Kumar
- University College London, Institute of Child Health, UK
| | - E Hughes
- University College London, Institute of Child Health, UK
| | - A Ritchie
- University College London, Institute of Child Health, UK
| | | | - A Pradeep
- University College London, Institute of Child Health, UK
| | - S Anwar
- University College London, Institute of Child Health, UK
| | - K Warrior
- University College London, Institute of Child Health, UK
| | - B Muthusamy
- University College London, Institute of Child Health, UK
| | - R Pilling
- University College London, Institute of Child Health, UK
| | - J Benzimra
- University College London, Institute of Child Health, UK
| | - A Reddy
- University College London, Institute of Child Health, UK
| | - K Bush
- University College London, Institute of Child Health, UK
| | - D Pharoah
- University College London, Institute of Child Health, UK
| | - K Falzon
- University College London, Institute of Child Health, UK
| | - U O'Colmain
- University College London, Institute of Child Health, UK
| | - R Knowles
- University College London, Institute of Child Health, UK
| | - V Tadic
- University College London, Institute of Child Health, UK
| | - A Dick
- University College London, Institute of Child Health, UK
| | - J Rahi
- University College London, Institute of Child Health, UK
| | - A L Solebo
- University College London, Institute of Child Health, UK
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Long V. Dermatology and the visual arts: More than meets the eye. Clin Dermatol 2023; 41:657-660. [PMID: 37739190 DOI: 10.1016/j.clindermatol.2023.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Dermatology, as a discipline that deals with the physical manifestation of disease on the skin, is heavily reliant on visual representation, both in historic and contemporary practice. This presentation provides a window through which we may visualize the interplay between dermatology and the visual arts.
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Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, National Unviersity Health System, Singapore.
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Long V, Chen Z, Du R, Chan YH, Yew YW, Oon HH, Thng S, Lim NQBI, Tan C, Chandran NS, Valderas JM, Phan P, Choi E. Understanding Discordant Perceptions of Disease Severity Between Physicians and Patients With Eczema and Psoriasis Using Structural Equation Modeling. JAMA Dermatol 2023; 159:811-819. [PMID: 37436741 PMCID: PMC10339220 DOI: 10.1001/jamadermatol.2023.2008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/12/2023] [Indexed: 07/13/2023]
Abstract
Importance Patients and physicians often have differing opinions on the patient's disease severity. This phenomenon, termed discordant severity grading (DSG), hinders the patient-physician relationship and is a source of frustration. Objective To test and validate a model explaining the cognitive, behavioral, and disease factors associated with DSG. Design, Setting, and Participants A qualitative study was first performed to derive a theoretical model. In this subsequent prospective cross-sectional quantitative study, the qualitatively derived theoretical model was validated using structural equation modeling (SEM). Recruitment was conducted between October 2021 and September 2022. This was a multicenter study in 3 Singapore outpatient tertiary dermatological centers. Dermatology patients and their attending physicians were recruited by convenience sampling. Patients were aged 18 to 99 years with psoriasis or eczema of at least 3 months' duration and recruited only once. The data were analyzed between October 2022 to May 2023. Main Outcomes and Measures The outcome was the difference between global disease severity (0-10 numerical rating scale with a higher score indicating greater severity) as independently scored by the patient and the dermatologist. Positive discordance was defined as patient-graded severity more than 2 points higher (graded more severely) than physicians, and negative discordance if more than 2 points lower than physicians. Confirmatory factor analysis followed by SEM was used to assess the associations between preidentified patient, physician, and disease factors with the difference in severity grading. Results Of the 1053 patients (mean [SD] age, 43.5 [17.5] years), a total of 579 (55.0%) patients were male, 802 (76.2%) had eczema, and 251 (23.8%) had psoriasis. Of 44 physicians recruited, 20 (45.5%) were male, 24 (54.5%) were aged between 31 and 40 years, 20 were senior residents or fellows, and 14 were consultants or attending physicians. The median (IQR) number of patients recruited per physician was 5 (2-18) patients. Of 1053 patient-physician pairs, 487 pairs (46.3%) demonstrated discordance (positive, 447 [42.4%]; negative, 40 [3.8%]). Agreement between patient and physician rating was poor (intraclass correlation, 0.27). The SEM analyses showed that positive discordance was associated with higher symptom expression (standardized coefficient B = 0.12; P = .02) and greater quality-of-life impairment (B = 0.31; P < .001), but not patient or physician demographics. A higher quality-of-life impairment was in turn associated with lower resilience and stability (B = -0.23; P < .001), increased negative social comparisons (B = 0.45; P < .001), lower self-efficacy (B = -0.11; P = .02), increased disease cyclicity (B = 0.47; P < .001), and greater expectation of chronicity (B = 0.18; P < .001). The model was well-fitted (Tucker-Lewis: 0.94; Root Mean Square Error of Approximation: 0.034). Conclusions and Relevance This cross-sectional study identified various modifiable contributory factors to DSG, increased understanding of the phenomenon, and set a framework for targeted interventions to bridge this discordance.
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Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore
| | - Zhaojin Chen
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ruochen Du
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yiong Huak Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yik Weng Yew
- Dermatology, National Skin Centre, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | | | - Steven Thng
- Dermatology, National Skin Centre, Singapore
| | | | - Chris Tan
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jose M. Valderas
- Centre for Research in Health System Performance, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Family Medicine, National University Healthcare System, Singapore
| | - Phillip Phan
- Carey Business School, Johns Hopkins University, Baltimore, Maryland
| | - Ellie Choi
- Division of Dermatology, Department of Medicine, National University Healthcare System, Singapore
- Centre for Research in Health System Performance, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Long V, Choi E. Comment on "Risk of rebound psoriasis flare from systemic corticosteroid use in patients with psoriasis: A retrospective cohort study". J Am Acad Dermatol 2023; 88:e173-e174. [PMID: 36739901 DOI: 10.1016/j.jaad.2023.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/05/2023]
Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Ellie Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore.
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Long V, Lau XMN, Ng CX, Phan P, Choi CEE. Discordance in perception of disease severity between patient and physicians. Eur J Intern Med 2023; 109:138-140. [PMID: 36384988 DOI: 10.1016/j.ejim.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/01/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022]
Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore.
| | - Xer Min Nicole Lau
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Clara Xinyi Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Phillip Phan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Johns Hopkins Carey Business School, Baltimore, MD, USA; Department of Medicine, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Ci En Ellie Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Choi E, Chan YH, Yew YW, Oon H, Thng S, Tan C, Long V, Phan P, Chandran NS. What makes a challenging consult? A cross-sectional study of 1053 dermatology patients in Singapore. JAAD Int 2023; 11:185-188. [PMID: 37138830 PMCID: PMC10149356 DOI: 10.1016/j.jdin.2023.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
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Long V, Choi ECE, Zhaojin C, Ganesegaran TS, Zhun Rui M, Yong AMY, MeiQi May L, Tan CLX, Chandran NS. Malignancy-associated generalised exfoliative dermatitis: A retrospective study in a single-centre Asian cohort. Australas J Dermatol 2023; 64:e152-e159. [PMID: 36729535 DOI: 10.1111/ajd.13987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/08/2023] [Accepted: 01/16/2023] [Indexed: 02/03/2023]
Abstract
BACKGROUND Erythroderma is an inflammatory skin condition that causes extensive erythema and skin scaling amounting ≥90% of the body surface area. This retrospective cohort study describes the prevalence of malignancy-associated erythroderma in a single centre where there was concerted effort to systematically offer malignancy screens to all adult erythroderma patients above the age of 65 years. METHODS Clinical charts were reviewed for all adult inpatients and outpatients with erythroderma who attended the National University Hospital (NUH) from 1 July 2019 to 31 December 2021. Data collected included patient demographics, clinical findings, laboratory investigations, disease-specific investigations such as endoscopic procedures and biopsies, follow-up duration and mortality data. RESULTS Seventy-four patients were analysed. The median age of the patients was 73 years old (interquartile range: 59-81 years old). An underlying dermatosis was the most common cause of erythroderma-63 patients having atopic dermatitis/asteatotic eczema or psoriasis. Three patients had erythroderma from drug eruptions, and 1 patient had chronic actinic dermatitis. Four patients had associated malignancies (5.4%). Half of our patients completed further evaluation for malignancy (52.7%). The rest had either declined or were eventually unable to complete the investigations. There was a higher prevalence of associated malignancy (7.8%) in elderly patients above 65 years old. CONCLUSION When compared to existing literature, our cohort reflects a higher observed occurrence of malignancy in association with erythroderma. As delays in evaluation for underlying malignancy could result in potentially deleterious outcomes, it is prudent to consider systematic screening for malignancy in high-risk populations such as elderly erythroderma patients.
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Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Ellie Ci-En Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chen Zhaojin
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | - Mok Zhun Rui
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Adeline Mei Yen Yong
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Liau MeiQi May
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Chris Li Xian Tan
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Long V, Choi ECE, Chen Z, Kamil MAA, Rajagopalan M, McMeniman E, Chandran NS. Dermatologists' Perceptions of the Use of Teledermatology in Managing Hidradenitis Suppurativa: Survey Study. JMIR Dermatol 2023; 6:e43910. [PMID: 37632921 PMCID: PMC10335133 DOI: 10.2196/43910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/16/2022] [Accepted: 01/08/2023] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The field of teledermatology has expanded tremendously and has been used for conditions including hidradenitis suppurativa (HS). However, due to the sensitive location of lesions, HS may be considered less suitable for teledermatology. OBJECTIVE We sought to assess dermatologists' experiences and perceptions toward using teledermatology for HS relative to atopic dermatitis (AD) as a comparison. METHODS A survey was disseminated electronically to practicing dermatologists in the Asia-Pacific region between February and June 2022. Differences in attitudes and perceptions between HS and AD were compared using random-effects ordered logistic regression, controlling for demographics. RESULTS A total of 100 responses were obtained comprising of 76 (81.7%) dermatologists and 17 (18.3%) dermatology trainees; 62.6% (62/98) of physicians were uncomfortable with using teledermatology for HS. Multivariable regression confirmed increased perceived challenges with managing HS using teledermatology compared to AD. These challenges include the need for photography of hard-to-reach or sensitive areas (odds ratio [OR] 4.71, 95% CI 2.44-9.07; P<.001), difficulties in accurate assessment of severity (OR 2.66, 95%CI 1.48-4.79; P=.001), and inability to palpate lesions (OR 2.27, 95% CI 1.23-4.18; P=.009). CONCLUSIONS This study confirms the relative reluctance of dermatologists to use teledermatology for HS and complements existing data showing mixed levels of willingness from patients. The use of teledermatology for HS may need to be optimized to overcome these challenges, including increasing security features, selection of patients with milder or limited diseases, and selecting patients with an established and strong doctor-patient relationship.
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Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Ellie Ci-En Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Zhaojin Chen
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | | | - Erin McMeniman
- Department of Dermatology, Princess Alexandra Hospital, Brisbane, Australia
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
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Majnooni M, Lasaygues P, Long V, Scimeca JC, Momier D, Rico F, Buzhinsky N, Guivier-Curien C, Baron C. Monitoring of in-vitro ultrasonic stimulation of cells by numerical modeling. Ultrasonics 2022; 124:106714. [PMID: 35344779 DOI: 10.1016/j.ultras.2022.106714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 12/16/2021] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Ultrasound stimulation of living tissues is a promising technique that can be safely applied for regenerative treatments. However, the ultrasound-induced mechanotransduction is still not well understood because of the large number of parameters involved at different scales and their difficult experimental accessibility. In this context, in-vitro studies may help to gain insight into the interaction between ultrasound and cells. Nevertheless, to conduct a reliable analysis of ultrasound effects on cell culture, the monitoring of the acoustic intensity delivered to the cells is of prime interest. Thanks to the development of an innovative custom experimental set-up inspired from ultrasound stimulation of bone regeneration conditions, major disturbing phenomena such as multiple reflections and standing wave formation inside the Petri dish are eliminated. Thus, the level of ultrasound stimulation, especially, in terms of spatial average temporal average intensity (ISATA), delivered to the cells can be monitored. Then, to properly estimate the level of ultrasound stimulation, a finite element model representing the experimental in-vitro configuration is developed. The numerical model manages on capturing the characteristics of the experimentally measured acoustic intensity distribution as illustrated by the experimental and numerical ISATA values of 42.3 and 45.8 mW/cm2 respectively, i.e. a relative difference of 8%. The numerical model would therefore allow exploring data inaccessible to experimental measurement and parametric studies to be carried out and facilitates the investigation of different virtual experimental configurations.
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Affiliation(s)
- M Majnooni
- Aix-Marseille Université, CNRS, ISM UMR 7287, Marseille, France; Aix-Marseille Université, CNRS, Centrale Marseille, IRPHE UMR 7342, Marseille, France.
| | - P Lasaygues
- Aix-Marseille Université, CNRS, Centrale Marseille, LMA UMR 7031, Marseille, France
| | - V Long
- Aix-Marseille Université, CNRS, Centrale Marseille, LMA UMR 7031, Marseille, France
| | - J-C Scimeca
- Université Côte d'Azur, CNRS, iBV UMR 7277, INSERM U1091, Nice, France
| | - D Momier
- Université Côte d'Azur, CNRS, iBV UMR 7277, INSERM U1091, Nice, France
| | - F Rico
- Aix-Marseille Université, CNRS, LAI UMR 7333, INSERM UMR 1067, Marseille, France
| | - N Buzhinsky
- Aix-Marseille Université, CNRS, LAI UMR 7333, INSERM UMR 1067, Marseille, France
| | - C Guivier-Curien
- Aix-Marseille Université, CNRS, Centrale Marseille, IRPHE UMR 7342, Marseille, France
| | - C Baron
- Aix-Marseille Université, CNRS, ISM UMR 7287, Marseille, France
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14
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Long V, Mok ZR, Lee GH, Chandran NS. Change in hepatitis B virus DNA status in patients receiving chronic immunosuppressive therapy for moderate-to-severe skin disease. Ann Acad Med Singap 2022; 51:192-195. [PMID: 35373245 DOI: 10.47102/annals-acadmedsg.2021312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Valencia Long
- Department of Medicine, National University Hospital, Singapore
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15
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Long V, Yew YW, Chandran NS, Choi ECE. Psoriasis Flares and Rebound Phenomenon Following Exposure and Withdrawal of Systemic Steroids - A Systematic Review and Meta-analysis. J Am Acad Dermatol 2022; 87:660-661. [PMID: 35033606 DOI: 10.1016/j.jaad.2022.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/02/2022] [Accepted: 01/04/2022] [Indexed: 11/15/2022]
Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore.
| | - Yik Weng Yew
- Medical Department, National Skin Centre, Singapore
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore
| | - Ellie Ci-En Choi
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore.
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Long V, Chandran NS. A Glance at the practice of Paediatric teledermatology Pre- and Post- COVID-19 pandemic (Preprint). JMIR Dermatology 2021; 5:e34228. [PMID: 35610984 PMCID: PMC9118542 DOI: 10.2196/34228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 12/29/2022] Open
Abstract
Background Objective Methods Results Conclusions
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Affiliation(s)
- Valencia Long
- Division of Dermatology, Department of Medicine, National University Hospital National University Health System Singapore Singapore
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital National University Health System Singapore Singapore
- Yong Loo Lin School of Medicine National University Singapore Singapore Singapore
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18
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Long V. The life and art of Alibert's dermatology. Clin Dermatol 2021; 40:293-296. [DOI: 10.1016/j.clindermatol.2021.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Long V, Soon YH, Soo MRT, Tan LF. Concomitant xanthogranulomatous pyelonephritis with renal abscess - an unusual cause of a right flank mass. Int Braz J Urol 2021; 47:1069-1071. [PMID: 34260186 PMCID: PMC8321458 DOI: 10.1590/s1677-5538.ibju.2020.0641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Valencia Long
- Fast Program, Alexandra Hospital, National University Hospital System, Singapore
| | - Young Hwa Soon
- Fast Program, Alexandra Hospital, National University Hospital System, Singapore
| | | | - Li Feng Tan
- Division of Healthy Ageing, National University Hospital System, Alexandra Hospital, Singapore
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20
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Long V, Tan CL, Choi ECE. What's #Trending: embracing social media in dermatology. Int J Dermatol 2021; 61:e44-e46. [PMID: 33990943 DOI: 10.1111/ijd.15662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/14/2021] [Accepted: 04/21/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Valencia Long
- Department of Medicine, National University Health System, Singapore
| | - Chris Lixian Tan
- Division of Dermatology, Department of Medicine, National University Health System, Singapore
| | - Ellie Ci-En Choi
- Division of Dermatology, Department of Medicine, National University Health System, Singapore
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21
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Long V, Pang YH, Law YXT, Low OW, Lee JT, Lee H, Yap YL, Lim J, Lim TC, Nallathamby V. An unusual nasal alar lesion. Australas J Dermatol 2021; 62:e444-e446. [PMID: 33729550 DOI: 10.1111/ajd.13570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Valencia Long
- Department of Medicine, National University Hospital, National University Health System, Singapore, Singapore
| | - Ying Huei Pang
- Department of Pathology, National University Health System, Singapore, Singapore
| | - Yu Xi Terence Law
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore
| | - O-Wern Low
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, Ng Teng Fong General Hospital, National University Health System, Singapore, Singapore
| | - Jing Tzer Lee
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore.,Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, Ng Teng Fong General Hospital, National University Health System, Singapore, Singapore
| | - Hanjing Lee
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore.,Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, Ng Teng Fong General Hospital, National University Health System, Singapore, Singapore
| | - Yan Lin Yap
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore
| | - Jane Lim
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore
| | - Thiam Chye Lim
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore
| | - Vigneswaran Nallathamby
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, Ng Teng Fong General Hospital, National University Health System, Singapore, Singapore
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22
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Long V, Tan BYS, Tan LF. Knowledge and Perceptions of COVID-19 among the General Public in Singapore: A Cross-sectional Online Survey. Ann Acad Med Singap 2021. [PMID: 33463669 DOI: 10.47102/annals-acadmedsg.2020361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Valencia Long
- Healthy Ageing Programme, Alexandra Hospital, Singapore
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23
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Long V, Tham SL. Thigh pain after a stroke. Assoc Med J 2020. [DOI: 10.1136/bmj.m3697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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24
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Akhunbay-Fudge C, Evans F, Long V, Chumas P, Corns R, Sheikh A. Integrated fundal assessment pathway for patients with suspected shunt malfunction via digital retinal images. Br J Neurosurg 2019; 34:650-653. [PMID: 31645135 DOI: 10.1080/02688697.2019.1675588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Introduction: Papilloedema is an important clinical sign in the assessment of neurosurgical patients presenting with suspected shunt malfunction.Methods: We describe our 18-month experience using a newly acquired nonmydriatic digital retinal camera to acquire fundal photographs for this purpose.Results: It was used to take digital photographs in 67 patients presenting with suspected shunt malfunction and 54% of these images were discussed with the on-call ophthalmology team for advice. Of these 81% had instant input provided by ophthalmology and the remainder were sent to the ophthalmology department for formal assessment. Of all shunt related regional referrals in the same time period, we found that only 13% of the referred patients were discussed with the on-call ophthalmology team. The rest had decisions made by the on-call neurosurgical team.Conclusions: We believe this new integrated pathway is clinically and cost-effective and recommend it as a useful tool in other neurosurgical units.
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Affiliation(s)
| | - F Evans
- Department of Neurosurgery, Leeds General Infirmary, Leeds, UK
| | - V Long
- Department of Ophthalmology, St James's University Hospital, Leeds, UK
| | - P Chumas
- Department of Neurosurgery, Leeds General Infirmary, Leeds, UK
| | - R Corns
- Department of Neurosurgery, Leeds General Infirmary, Leeds, UK
| | - A Sheikh
- Department of Neurosurgery, Leeds General Infirmary, Leeds, UK
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25
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Long V, Michelle LWT, Joyce LSS. A Unique and Rare Case of Extramammary Paget Disease With Concomitant Herpes Simplex. Am J Dermatopathol 2019; 41:590-592. [PMID: 31335413 DOI: 10.1097/dad.0000000000001359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We describe a rare and unique case of extramammary Paget disease in the genitals with concomitant histological features of herpes virus infection. This is a very rare and interesting association that has only been reported in 1 article in the literature so far.
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Affiliation(s)
- Valencia Long
- Department of Dermatology, National Skin Centre, Singapore
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26
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Dyrda K, Brouillette J, Long V, Guertin M. ANXIOUSHEART: THE MEETING POINT OF CARDIAC AND ANXIOUS DISEASES. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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27
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Long V, Elpern D. 559 Dysasthetic penile scrotodynia - a psychosexual somatoform disorder. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Long V, Liang MW, Tan SH. Hydroa vacciniforme-like lymphoproliferative disorder in an elderly Chinese patient and a literature review of adult cases. Int J Dermatol 2018; 57:1283-1292. [PMID: 29926891 DOI: 10.1111/ijd.14050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/06/2018] [Accepted: 04/22/2018] [Indexed: 11/30/2022]
Abstract
Hydroa vaccinforme-like lymphoproliferative disorder (HVLPD) is a rare T-cell lymphoproliferative disorder driven by the Epstein-Barr Virus (EBV). It was initially designated under the 2008 WHO classification of tumors of hematopoietic and lymphoid tissues as a distinct entity but has been recently reclassified as a lymphoproliferative disorder under the 2016 revision of the 2008 WHO classification of lymphoid malignancies. HVLPD mainly affects Asian, Central, and South American children. It is rarely seen in adults. Although HVLPD may initially be limited to cutaneous involvement and run an indolent course, some patients may develop a rapidly aggressive course. We report a case of an elderly Chinese man with cutaneous-limited disease and a favorable course. A review of adult cases of HVLPD published in the English literature, with comparison to our case, is also presented in this paper.
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29
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Yang S, Long V, Liau M, Lee S, Toh M, Teo J, Tan C, Aw D. A profile ofPropionibacterium acnesresistance and sensitivity at a tertiary dermatological centre in Singapore. Br J Dermatol 2018; 179:200-201. [DOI: 10.1111/bjd.16380] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S.S. Yang
- Dermatology; National University Hospital Singapore; 1E Kent Ridge Rd Singapore 119228 Singapore
| | | | - M.M. Liau
- Dermatology; National University Hospital Singapore; 1E Kent Ridge Rd Singapore 119228 Singapore
| | - S.H. Lee
- Dermatology; National University Hospital Singapore; 1E Kent Ridge Rd Singapore 119228 Singapore
| | - M. Toh
- National University of Singapore; Singapore Singapore
| | - J. Teo
- Laboratory Medicine; National University Hospital Singapore; 1E Kent Ridge Rd Singapore 119228 Singapore
| | - C. Tan
- Dermatology; National University Hospital Singapore; 1E Kent Ridge Rd Singapore 119228 Singapore
| | - D. Aw
- Dermatology; National University Hospital Singapore; 1E Kent Ridge Rd Singapore 119228 Singapore
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30
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Perrier S, Gauquelin L, Tétreault M, Tran L, Webb N, Srour M, Mitchell J, Brunel-Guitton C, Majewski J, Long V, Keller S, Gambello M, Simons C, Vanderver A, Bernard G. Recessive mutations in NDUFA2
cause mitochondrial leukoencephalopathy. Clin Genet 2017; 93:396-400. [DOI: 10.1111/cge.13126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/07/2017] [Accepted: 08/13/2017] [Indexed: 11/30/2022]
Affiliation(s)
- S. Perrier
- Department of Neurology and Neurosurgery; McGill University; Montreal Canada
| | - L. Gauquelin
- Department of Neurology and Neurosurgery; McGill University; Montreal Canada
- Department of Pediatrics; McGill University; Montreal Canada
| | - M. Tétreault
- Department of Human Genetics; McGill University; Montreal Canada
- McGill University and Genome Quebec Innovation Centre; Montreal Canada
| | - L.T. Tran
- Department of Neurology and Neurosurgery; McGill University; Montreal Canada
- Department of Pediatrics; McGill University; Montreal Canada
- Department of Medical Genetics, Montreal Children's Hospital; McGill University Health Center; Montreal Canada
- Child Health and Human Development Program; Research Institute of the McGill University Health Centre; Montreal Canada
| | - N. Webb
- Department of Human Genetics; McGill University; Montreal Canada
- Division of Medical Genetics, Department of Pediatrics; CHU Sainte-Justine and Université de Montréal; Montreal Canada
- Montreal Neurological Institute; McGill University; Montreal Canada
| | - M. Srour
- Department of Neurology and Neurosurgery; McGill University; Montreal Canada
- Department of Pediatrics; McGill University; Montreal Canada
- Child Health and Human Development Program; Research Institute of the McGill University Health Centre; Montreal Canada
| | - J.J. Mitchell
- Department of Pediatrics; McGill University; Montreal Canada
- Department of Medical Genetics, Montreal Children's Hospital; McGill University Health Center; Montreal Canada
| | - C. Brunel-Guitton
- Division of Medical Genetics, Department of Pediatrics; CHU Sainte-Justine and Université de Montréal; Montreal Canada
| | - J. Majewski
- Department of Human Genetics; McGill University; Montreal Canada
- McGill University and Genome Quebec Innovation Centre; Montreal Canada
| | - V. Long
- Department of Human Genetics, Division of Medical Genetics; Emory University School of Medicine; Atlanta Georgia
| | - S. Keller
- Department of Pediatrics, Division of Pediatric Neurology; Emory University School of Medicine; Atlanta Georgia
| | - M.J. Gambello
- Department of Human Genetics, Division of Medical Genetics; Emory University School of Medicine; Atlanta Georgia
| | - C. Simons
- Institute for Molecular Bioscience; The University of Queensland; St. Lucia Australia
| | - A. Vanderver
- Department of Neurology, Perelman School of Medicine; University of Pennsylvania; Philadelphia Pennsylvania
- Division of Neurology; Children's Hospital of Philadelphia; Philadelphia Pennsylvania
| | - G. Bernard
- Department of Neurology and Neurosurgery; McGill University; Montreal Canada
- Department of Pediatrics; McGill University; Montreal Canada
- Department of Medical Genetics, Montreal Children's Hospital; McGill University Health Center; Montreal Canada
- Child Health and Human Development Program; Research Institute of the McGill University Health Centre; Montreal Canada
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31
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Affiliation(s)
- MeiQi May Liau
- University Dermatology Clinic, National University Hospital, Singapore
| | | | - Jingxiang Huang
- Department of Pathology, National University Hospital, Singapore
| | - Huma Jaffar
- University Dermatology Clinic, National University Hospital, Singapore
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34
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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35
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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36
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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37
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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38
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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39
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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40
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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41
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Chuah SY, Attia ABE, Long V, Ho CJH, Malempati P, Fu CY, Ford SJ, Lee JSS, Tan WP, Razansky D, Olivo M, Thng S. Structural and functional 3D mapping of skin tumours with non-invasive multispectral optoacoustic tomography. Skin Res Technol 2016; 23:221-226. [PMID: 27804169 DOI: 10.1111/srt.12326] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Recent advances in technology have enabled the development of various non-invasive skin imaging tools to aid real-time diagnosis of both benign and malignant skin tumours, minimizing the need for invasive skin biopsy. Multispectral optoacoustic tomography (MSOT) is a recently developed non-invasive imaging tool, which offers the unique capacity for high resolution three dimensional (3D) optical mapping of tissue by further delivering highly specific optical contrast from a depth of several millimetres to centimetres in living tissues. MSOT enables volumetric, spectroscopic differentiation of tissue, both in vivo and in real time, with and without the application of biomarker-specific probes, and is further able of providing spatial maps of skin chromophores, as well as underlying blood vasculature. METHODS Three patients with suspicious skin tumours consented to have their lesions imaged with MSOT prior to excision. The histological findings and measurements were compared. RESULTS We demonstrated the first in vivo clinical use of MSOT for 3D reconstruction of skin tumours in three patients with good histological correlation. CONCLUSION Our findings confirm the potential benefit of the new imaging method in guiding surgical intervention to achieve a more precise excision with better clearance and lower relapse rates. It can also potentially help to shorten the duration of Mohs' micrographic surgery. Further large-scale studies are necessary to ensure correlation between MSOT and histology.
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Affiliation(s)
| | - A B E Attia
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - V Long
- Department of Medicine, Tan Tock Seng Hospital, Singapore
| | - C J H Ho
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - P Malempati
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - C Y Fu
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - S J Ford
- iThera Medical GmbH, Munich, Germany
| | | | - W P Tan
- National Skin Centre, Singapore
| | - D Razansky
- Institute for Biological and Medical Imaging, Technical University of Munich and Helmholtz Center, Munich, Germany
| | - M Olivo
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, A*STAR, Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - S Thng
- National Skin Centre, Singapore
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42
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Long V, Hoenig LJ. The Witches of Macbeth. JAMA Dermatol 2016; 152:767. [DOI: 10.1001/jamadermatol.2015.5543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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43
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Affiliation(s)
- Valencia Long
- Department of Medicine, National University Hospital, Singapore
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44
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Abstract
The world of dermatology is pieced together by clinical conditions unique in their colors, morphology, and configuration. Dermatological signs and terms are influenced by etymology, language, and history. Eponyms also make dermatology a fascinating but linguistically challenging subject. This article reviews dermatological conditions described in relation to fashion, and what we wear in everyday life from top to toe, demonstrating that dermatology can be inspired even in the most common things.
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Affiliation(s)
- Valencia Long
- Department of General Medicine, National University Hospital, Singapore
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45
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Kiyotani C, Uno T, Ogiwara H, Morota N, Nakazawa A, Tsutsumi Y, Masaki H, Mori T, Sanz JAS, Guibelalde M, Tavera A, Herandez I, Ibanez J, Brell M, Mas A, Muller HL, Gebhardt U, Warmuth-Metz M, Pietsch T, Sorensen N, Kortmann RD, Stapleton S, Gonzalez I, Steinbrueck S, Rodriguez L, Tuite G, Krzyzankova M, Mertsch S, Jeibmann A, Kordes U, Wolff J, Paulus W, Hasselblatt M, Nonaka Y, Hara S, Fukazawa S, Shimizu K, Ben-Arush M, Postovsky S, Toledano H, Peretz-Nahum M, Fujimura J, Sakaguchi S, Kondo A, Saito Y, Shimoji K, Ohara Y, Arakawa A, Saito M, Shimizu T, Benesch M, von Bueren AO, Dantonello T, von Hoff K, Pietsch T, Leuschner I, Claviez A, Bierbach U, Kropshofer G, Korinthenberg R, Graf N, Suttorp M, Kortmann RD, Friedrich C, Klingebiel T, Koscielniak E, Rutkowski S, Mesa M, Sanchez M, Mejia J, Pena G, Dussan R, Cabeza M, Storino A, Dincer F, Roffidal T, Powell M, Berrak S, Wolff JE, Fouyssac F, Delaunay C, Vignaud JM, Schmitt E, Klein O, Mansuy L, Chastagner P, Cruz O, Guillen A, Garcia G, Alamar M, Candela S, Roussos I, Garzon M, Sunol M, Muchart J, Rebollo M, Mora J, Wolff J, Diez B, Muggeri A, Arakaki N, Meli F, Sevlever G, Tsitouras V, Pettorini B, Fellows G, Blair J, Didi M, Daousi C, Steele C, Javadpour M, Sinha A, Hishii M, Kondo A, Fujimura J, Sakaguchi S, Ishii H, Shimoji K, Miyajima M, Arai H, Dvir R, Sayar D, Levin D, Ben-Sirah L, Constantini S, Elhasid R, Gertsch E, Foreman N, Valera ET, Brassesco MS, Machado HR, Oliveira RS, Santos AC, Terra VC, Barros MV, Scrideli CA, Tone LG, Merino D, Pienkowska M, Shlien A, Tabori U, Gilbertson R, Malkin D, Jeeva I, Chang B, Long V, Picton S, Burton D, Clark S, Kwok C, Mokete B, Rafiq O, Simmons I, Shing MMK, Li CK, Chan GCF, Ha SY, Yuen HL, Luk CW, Li CK, Ling SC, Li RCH, Yoon JH, Park HJ, Shin HJ, Park BK, Kim JY, Jung HL, Ra YS, Ghim TT, Wolff J, Hasselblatt M, Hartung S, Powell M, Garami M, Traunecker H, Thall P, Mahajan A, Kordes U, Sumerauer D, Grillner P, Orrego A, Mosskin M, Gustavsson B, Holm S, Peters N, Rogers M, Chowdry S, Selman W, Mitchell A, Bangert B, Ahuja S, Laschinger K, Gold D, Stearns D, Wright K, Gupta K, Klimo P, Ellison D, Keating G, Eckel L, Giannini C, Wetjen N, Patton A, Zaky W, McComb G, Finlay J, Grimm J, Wong K, Dhall G, Zaky W, Gilles F, Grimm J, Dhall G, Finlay J, Ormandy D, Alston R, Estlin E, Gattamaneni R, Birch J, Kamaly-Asl I, Hemenway M, Foreman N, Rush S, Reginald YA, Nicolin G, Bartel U, Buncic JR, Aguilera D, Flamini R, Mazewski C, Schniederjan M, Hayes L, Boydston W, MacDonald T, Fleming A, Jabado N, Saint-Martin C, Albrecht S, Ramsay DA, Farmer JP, Bendel A, Hansen M, Dugan S, Mendelsohn N. RARE TUMORS. Neuro Oncol 2012; 14:i148-i156. [PMCID: PMC3483354 DOI: 10.1093/neuonc/nos108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023] Open
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Abstract
BACKGROUND Congenital cataracts are opacities of the lens in one or both eyes of children that cause a reduction in vision severe enough to require surgery. Cataract is the largest treatable cause of visual loss in childhood. Paediatric cataracts provide different challenges to those in adults. Intense inflammation, amblyopia and posterior capsule opacification can affect results of treatment. Two treatments commonly considered for congenital cataract are lensectomy and lens aspiration. OBJECTIVES The objective of this review was to assess the effects of surgical treatments for bilateral symmetrical congenital cataracts. Success was measured according to the vision attained and occurrence of adverse events. SEARCH STRATEGY We searched the Cochrane Central Register of Controlled Trials (CENTRAL) on The Cochrane Library, which contains the Cochrane Eyes and Vision Group Trials Register (2005, Issue 2), MEDLINE (1966 to June 2005), EMBASE (1980 to June 2005, week 27), LILACS (6 July 2005), the Science Citation Index and the reference list of the included studies. We also contacted trial investigators and experts in the field for details of further studies. SELECTION CRITERIA We included all prospective, randomised controlled trials that compared one type of cataract surgery to another, or to no surgery, in children with bilateral congenital cataracts aged 15 years or younger. DATA COLLECTION AND ANALYSIS Two authors extracted data. No meta-analysis was performed. MAIN RESULTS Four trials met the inclusion criteria. All trials were concerned with reducing the development of visual axis opacification (VAO). This was achieved with techniques that included an anterior vitrectomy or optic capture. Posterior capsulotomy alone was inadequate except in older children. AUTHORS' CONCLUSIONS Evidence exists for the care of children with congenital or developmental bilateral cataracts to reduce the occurrence of visual axis opacification. Further randomised trials are required to inform modern practice about other concerns including the timing of surgery, age for implantation of an intraocular lens and development of long-term complications such as glaucoma and retinal detachment.
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Affiliation(s)
- V Long
- General Infirmary, Ophthalmology Department, Belmont Grove, Leeds, UK LS2 9NS.
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