2.Epidemiology and Factors Associated with Remission of Pemphigus Vulgaris and Foliaceus in Singapore.
Sophie Cs CAI ; Xiahong ZHAO ; Mark By TANG ; Yen Loo LIM
Annals of the Academy of Medicine, Singapore 2020;49(6):367-376
INTRODUCTION:
Pemphigus is a chronic, relapsing immunobullous disease. There is limited data on the clinical course and prognostic factors of pemphigus in Asian patients.
MATERIALS AND METHODS:
We conducted a retrospective cohort study of all newly diagnosed pemphigus vulgaris (PV) and pemphigus foliaceus (PF) patients seen at the National Skin Centre from 1 January 2004 to 31 December 2009. Demographic and clinical data on comorbidities, treatment and remission were recorded. Mortality information was obtained from the National Registry of Diseases. Prognostic endpoint was overall remission at last visit.
RESULTS:
Sixty- one patients (36 PV and 25 PF) were recruited. Among PV patients, higher initial prednisolone dose ( = 0.017) and the use of azathioprine ( = 0.028) were significantly associated with overall remission at last visit. However, higher desmoglein 1 antibody titres at diagnosis ( = 0.024) and the use of dapsone ( = 0.008) were negatively associated with overall remission at last visit. Among PF patients, only higher desmoglein 1 antibody titre at diagnosis ( = 0.041) was found to be associated with lower overall remission at last visit. There was no mortality during the 3-year follow-up period in both PV and PF.
CONCLUSION
Higher initial prednisolone dose and the use of azathioprine in PV desmoglein 1 antibody titre at diagnosis in PV and PF might be prognostic markers for achieving remission. Use of dapsone was associated with lower overall remission in PV, but this might be confounded because dapsone was used as an adjuvant therapy in recalcitrant cases. Owing to study methodology and limitations, further evaluation is needed for better prognostication of pemphigus.
3.Anesthesia guidelines for COVID-19 patients: a narrative review and appraisal
Sharon ONG ; Wan Yen LIM ; John ONG ; Peter KAM
Korean Journal of Anesthesiology 2020;73(6):486-502
The coronavirus disease 2019 (COVID-19) pandemic has challenged health systems globally and prompted the publication of several guidelines. The experiences of our international colleagues should be utilized to protect patients and healthcare workers. The primary aim of this article is to appraise national guidelines for the perioperative anesthetic management of patients with COVID-19 so that they can be enhanced for the management of any resurgence of the epidemic. PubMed and EMBASE databases were systematically searched for guidelines related to SARS-CoV and SARS-CoV-2. Additionally, the World Federation Society of Anesthesiologists COVID-19 resource webpage was searched for national guidelines; the search was expanded to include countries with a high incidence of SARS-CoV. The guidelines were evaluated using the Appraisal of Guidelines for Research and Evaluation II tool. Guidelines from Australia, Canada, China, India, Italy, South Africa, South Korea, Taiwan, the United Kingdom, and the United States of America were evaluated. All the guidelines focused predominantly on intubation and infection control. The scope and purpose of guidelines from China were the most comprehensive. The UK and South Africa provided the best clarity. Editorial independence, the rigor of development, and applicability scored poorly. Heterogeneity and gaps pertaining to preoperative screening, anesthesia technique, subspecialty anesthesia, and the lack of auditing of guidelines were identified. Evidence supporting the recommendations was weak. Early guidelines for the anesthetic management of COVID-19 patients lacked quality and a robust reporting framework. As new evidence emerges, national guidelines should be updated to enhance rigor, clarity, and applicability.
4.Impact of COVID-19 on Clinical Operations and Management of Patients in a Singapore Immunodermatology Unit during the 'Circuit-Breaker' Period and Beyond.
Annals of the Academy of Medicine, Singapore 2020;49(11):919-921
Allergy and Immunology
;
Ambulatory Care
;
Autoimmune Diseases/therapy*
;
COVID-19
;
Communicable Disease Control
;
Connective Tissue Diseases/therapy*
;
Delivery of Health Care/methods*
;
Dermatology
;
Humans
;
Immunosuppressive Agents/therapeutic use*
;
Patient Selection
;
SARS-CoV-2
;
Singapore
;
Skin Diseases, Vesiculobullous/therapy*
;
Telemedicine/methods*
;
Tertiary Care Centers
;
Vasculitis/therapy*
5.Anesthesia guidelines for COVID-19 patients: a narrative review and appraisal
Sharon ONG ; Wan Yen LIM ; John ONG ; Peter KAM
Korean Journal of Anesthesiology 2020;73(6):486-502
The coronavirus disease 2019 (COVID-19) pandemic has challenged health systems globally and prompted the publication of several guidelines. The experiences of our international colleagues should be utilized to protect patients and healthcare workers. The primary aim of this article is to appraise national guidelines for the perioperative anesthetic management of patients with COVID-19 so that they can be enhanced for the management of any resurgence of the epidemic. PubMed and EMBASE databases were systematically searched for guidelines related to SARS-CoV and SARS-CoV-2. Additionally, the World Federation Society of Anesthesiologists COVID-19 resource webpage was searched for national guidelines; the search was expanded to include countries with a high incidence of SARS-CoV. The guidelines were evaluated using the Appraisal of Guidelines for Research and Evaluation II tool. Guidelines from Australia, Canada, China, India, Italy, South Africa, South Korea, Taiwan, the United Kingdom, and the United States of America were evaluated. All the guidelines focused predominantly on intubation and infection control. The scope and purpose of guidelines from China were the most comprehensive. The UK and South Africa provided the best clarity. Editorial independence, the rigor of development, and applicability scored poorly. Heterogeneity and gaps pertaining to preoperative screening, anesthesia technique, subspecialty anesthesia, and the lack of auditing of guidelines were identified. Evidence supporting the recommendations was weak. Early guidelines for the anesthetic management of COVID-19 patients lacked quality and a robust reporting framework. As new evidence emerges, national guidelines should be updated to enhance rigor, clarity, and applicability.
8.Anxiety and Depression in Patients with Atopic Dermatitis in a Southeast Asian Tertiary Dermatological Centre.
Vanessa Zy LIM ; Roger Cm HO ; Shang Ian TEE ; Madeline Sl HO ; Jiun Yit PAN ; Yen Loo LIM ; Mark By TANG ; Keen Loong CHAN ; Yoke Chin GIAM
Annals of the Academy of Medicine, Singapore 2016;45(10):451-455
INTRODUCTIONThis study aimed to assess the frequency of anxiety and depression in a cohort of adult patients with atopic dermatitis (AD) in a tertiary dermatological centre, using the Hospital Anxiety and Depression Scale (HADS). We looked for any correlation between anxiety and depression with skin disease severity.
MATERIALS AND METHODSPatients with AD were recruited from the National Skin Centre, Singapore, from 2008 to 2009 for a prospective cross-sectional study. The scoring atopic dermatitis (SCORAD) grade was determined and the HADS was administered via interviews.
RESULTSA total of 100 patients (78 males, 22 females) were enrolled (92% Chinese, 4% Malays and 4% Indians). Their average age was 25.7 years. Sixty-five percent used topical steroids, 14% had previously taken oral prednisolone for the control of disease flares, and 20% were on concurrent systemic therapy. The mean SCORAD was 55.0, with 99% of patients having moderate or severe AD. The mean HADS anxiety score was 7.2 and the mean depression score was 5.0. The level of anxiety correlated well with that of depression (Spearman's rank correlation coefficient, ρ = 0.59,<0.05); 18% were considered as cases of anxiety and 5% as cases of depression. These patients also had higher SCORAD values compared to other patients with lower scores for anxiety or depression (<0.05). Linear regression demonstrated a statistically significant positive relationship between anxiety and depression scores, and SCORAD scores.
CONCLUSIONOur study identified, by means of the HADS, the frequency of anxiety and depression amongst a cohort of Singaporean patients with AD. More severe skin disease correlated to greater psychological burden. The HADS is a useful screening tool that can constitute part of the overall holistic management of patients with AD so as to improve patient care.
Adrenal Cortex Hormones ; therapeutic use ; Adult ; Anxiety ; epidemiology ; psychology ; Cohort Studies ; Comorbidity ; Cross-Sectional Studies ; Depression ; epidemiology ; psychology ; Dermatitis, Atopic ; drug therapy ; epidemiology ; psychology ; Female ; Humans ; Linear Models ; Male ; Prevalence ; Prospective Studies ; Singapore ; epidemiology ; Tertiary Care Centers
9.Guidelines for the Management of Atopic Dermatitis in Singapore.
Yong Kwang TAY ; Yuin Chew CHAN ; Nisha Suyien CHANDRAN ; Madeline Sl HO ; Mark Ja KOH ; Yen Loo LIM ; Mark By TANG ; Thamotharampillai THIRUMOORTHY
Annals of the Academy of Medicine, Singapore 2016;45(10):439-450
INTRODUCTIONAtopic dermatitis is a common, chronic pruritic condition affecting both children and adults, which has a negative impact on the quality of life. These guidelines were developed by an expert workgroup appointed by the Dermatological Society of Singapore, to provide doctors with information to assist in the management of their patients with atopic dermatitis. The workgroup members are experienced dermatologists with interest and expertise in eczemas.
MATERIALS AND METHODSWorkgroup members arrived at a consensus on the topics to be included. Relevant studies from the literature were assessed for best evidence, supplemented by the collective experience of the workgroup.
RESULTSFor mild atopic dermatitis, emollients, mild potency topical steroids and topical calcineurin inhibitors are recommended. For moderate-to-severe atopic dermatitis, the use of emollients, moderate-to-potent topical steroids, topical calcineurin inhibitors, wet dressings, antimicrobials for secondary skin infection, phototherapy, and systemic therapy (e.g. prednisolone, cyclosporine, azathioprine or methotrexate) may be warranted. Patients with moderate-to-severe atopic dermatitis should be managed in conjunction with a dermatologist.
CONCLUSIONGood outcomes can be achieved with an individualised therapeutic approach combined with adequate patient and parental education.
Administration, Cutaneous ; Adrenal Cortex Hormones ; therapeutic use ; Anti-Bacterial Agents ; therapeutic use ; Azathioprine ; therapeutic use ; Calcineurin Inhibitors ; therapeutic use ; Coinfection ; complications ; drug therapy ; Cyclosporine ; therapeutic use ; Dermatitis, Atopic ; complications ; immunology ; therapy ; Dermatology ; Disease Management ; Emollients ; therapeutic use ; Food Hypersensitivity ; immunology ; Humans ; Immunosuppressive Agents ; therapeutic use ; Methotrexate ; therapeutic use ; Patient Education as Topic ; Phototherapy ; Practice Guidelines as Topic ; Referral and Consultation ; Severity of Illness Index ; Singapore
10.Anti-BP180 NC16A IgG Titres as an Indicator of Disease Activity and Outcome in Asian Patients with Bullous Pemphigoid.
Sophie C S CAI ; Yen Loo LIM ; Wenyun LI ; John Carson ALLEN ; Sze Hon CHUA ; Suat Hoon TAN ; Mark B Y TANG
Annals of the Academy of Medicine, Singapore 2015;44(4):119-126
INTRODUCTIONAnti-BP180 IgG titres were observed to parallel disease activity in case series of bullous pemphigoid (BP). This study aimed to examine whether anti-BP180 titres are an indicator of disease severity, clinical course and outcome in Asian patients with BP.
MATERIALS AND METHODSThis was a prospective observational study conducted between March 2005 and March 2008 in the Immunodermatology Clinic at the National Skin Centre, Singapore. Disease activity and anti-BP180 IgG titres were measured 4-weekly for 12 weeks and during disease flares and clinical remission. Associations between anti-BP180 titres and disease activity, disease flare, clinical remission and cumulative prednisolone dose were examined.
RESULTSThirty-four patients with newly diagnosed BP were recruited. Median follow-up duration was 3 years. Notable correlations between disease activity and anti-BP180 titres were at baseline (r = 0.51, P = 0.002), and disease flare (r = 0.85, P <0.001). Lower titres at Week 12 were associated with greater likelihood of clinical remission (P = 0.036). Post hoc, patients with anti-BP180 titres above 87.5 U/mL at time of diagnosis who reached remission within 2 years of diagnosis received significantly higher cumulative doses (mg/kg) of prednisolone (median, 72.8; range, 56.5 to 127.1) than those with titres <87.5 U/mL (median, 44.6; range, 32.5 to 80.8); P = 0.025).
CONCLUSIONAnti-BP180 titres may be a useful indicator of disease activity at time of diagnosis and at disease flare. Lower titres at Week 12 may predict greater likelihood of clinical remission. Titres above 87.5 U/mL at time of diagnosis may suggest the need for higher cumulative doses of prednisolone to achieve remission within 2 years.
Adult ; Aged ; Aged, 80 and over ; Antibodies, Anti-Idiotypic ; blood ; Asian Continental Ancestry Group ; Autoantibodies ; blood ; Autoantigens ; blood ; Disease Progression ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Male ; Middle Aged ; Non-Fibrillar Collagens ; blood ; Outcome Assessment (Health Care) ; Pemphigoid, Bullous ; diagnosis ; ethnology ; immunology ; Predictive Value of Tests ; Prospective Studies ; Singapore

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