1.Development and validation of odour identification tests for olfactory assessment in Singapore.
Xinni XU ; Margaret Ru Xiang ZHANG ; Terese Huiying LOW ; Yew Kwang ONG
Annals of the Academy of Medicine, Singapore 2025;54(6):329-339
INTRODUCTION:
Odour recognition is influenced by culture. Odour identification tests need to be adapted to a population to accurately assess olfactory function. This study's objectives were to validate the Singapore version of the Sniffin' Sticks (SS-Sg) and a locally-developed odour recognition test (Scentsor) for Singapore.
METHOD:
This prospective study was performed in 3 otolaryngology outpatient clinics in 3 phases (1 May to 15 November 2024). Phase 1 was a survey evaluation of 93 odour descriptors to identify familiar odour descriptors to be used in the tests (n=414); Phase 2 evaluated and finalised SS-Sg and Scentsor to ensure test odours were recognised by ≥75% of healthy controls (n=130); and Phase 3 validated both tests on healthy controls (n=473) to obtain normative data, to determine test-retest reliability (n=50), and to assess the ability to distinguish patients with olfactory loss (n=67).
RESULTS:
In Phase 1, the unmodified SS blue and purple sets had 15/32 (46.9%) unfamiliar test odours and 25 unfamiliar distractors combined. In Phase 2, after modification, all odours in SS-Sg and Scentsor were correctly identified by ≥75% of controls. In Phase 3, normative data (age 21-83 years) was obtained. Both tests had good test-retest reliability (Pearson's correlation coefficient of 0.88 with<0.001 for SS-Sg; and at 0.90 with<0.001 for Scentsor). Both tests differentiated among normosmia, hyposmia and anosmia (SS-Sg scores: 12.6 [±2.4] versus [vs] 9.8 (±3.2) vs 6.0 [±2.3] respectively,<0.001; Scentsor scores: 14.3 [±1.8] vs 11.3 [±2.8] vs 5.8 [±3.4] respectively,<0.001).
CONCLUSION
SS-Sg and Scentsor have been validated to assess olfaction in Singapore.
Humans
;
Singapore
;
Male
;
Female
;
Odorants/analysis*
;
Middle Aged
;
Prospective Studies
;
Olfaction Disorders/diagnosis*
;
Adult
;
Reproducibility of Results
;
Aged
;
Smell/physiology*
;
Young Adult
2.Cutaneous Serratia Marcescens Infection - A Rare Case Report
Kwang Meng Yew ; Stephanie Sue San Ong ; Mazita Ismail ; Jyh Jong Tang
Malaysian Journal of Dermatology 2021;46(June 2021):52-54
Summary
Cutaneous serratia marcescens (S. marcescens) infection is very rare and most cases had history of skin trauma or cutaneous procedure done before. It presents in various forms like non-healing ulcers, abscess formation, nodules with an intermittent course or as granulomatous lesions, thus mimicking non-infective lesions. Antibiotic choice is challenging due to multiple antibiotic resistant strains. We are reporting a case of cutaneous S. marcescens in a 70-year old lady with diabetes mellitus presented with non-healing ulcers over the dorsum of left hand for 6 months.
Serratia marcescens
;
Dermatomycoses
3.Next-Generation Allergic Rhinitis Care in Singapore: 2019 ARIA Care Pathways.
Xuandao LIU ; De Yun WANG ; Tze Choong CHARN ; Leslie Timothy KOH ; Neville Wy TEO ; Yew Kwang ONG ; Mark Kt THONG ; Claus BACHERT ; Oliver PFAAR ; Holger J SCHÜNEMANN ; Anna BEDBROOK ; Wienczyslawa CZARLEWSKI ; Jean BOUSQUET
Annals of the Academy of Medicine, Singapore 2020;49(11):885-896
Allergic rhinitis (AR) is prevalent in Singapore, with a significant disease burden. Afflicting up to 13% of the population, AR impairs quality of life, leads to reduced work productivity and is an independent risk factor for asthma. In the last 2 decades, local studies have identified patient and physician behaviours leading to suboptimal control of the disease. Yet, there is an overall lack of attention to address this important health issue. Allergic Rhinitis and its Impact on Asthma (ARIA) is a European organisation aimed at implementing evidence-based management for AR worldwide. Recent focus in Europe has been directed towards empowering patients for self-management, exploring the complementary role of mobile health, and establishing healthcare system-based integrated care pathways. Consolidation of these ongoing efforts has led to the release of the 2019 ARIA care pathways. This review summarises the ARIA update with particular emphasis on the current status of adult AR in Singapore. In addition, we identify unmet needs and future opportunities for research and clinical care of AR in the local context.
4.Clinical Outcome in Patients with Negative Rigid Oesophagoscopy for Suspected Foreign Body Ingestion.
Donovan Kc EU ; Audrey Yn LIM ; Yipeng WU ; Yew Kwang ONG ; Chwee Ming LIM
Annals of the Academy of Medicine, Singapore 2016;45(7):326-329
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Eating
;
Esophagoscopy
;
Esophagus
;
diagnostic imaging
;
surgery
;
False Positive Reactions
;
Foreign Bodies
;
diagnosis
;
diagnostic imaging
;
Foreign-Body Migration
;
diagnosis
;
diagnostic imaging
;
Humans
;
Middle Aged
;
Pharynx
;
diagnostic imaging
;
surgery
;
Radiography
;
Remission, Spontaneous
;
Retrospective Studies
;
Tomography, X-Ray Computed
;
Young Adult
5.En bloc resection concept for endoscopic endonasal nasopharyngectomy: surgical anatomy and outcome.
Ning-i HSU ; Ping-hung SHEN ; Siew-shuen CHAO ; Yew-kwang ONG ; Cho-shun LI ; cshy1350@csh.org.tw.
Chinese Medical Journal 2014;127(16):2934-2939
BACKGROUNDNasopharyngeal carcinoma (NPC) patients have a 19%-56% locoregional recurrence rate after primary therapy. For those recurrent NPC (rNPC) patients, re-irradiation may cause some complications. In recent years, endoscopic endonasal nasopharyngectomy (EEN) has become a surgical option for rNPC patients. Here we introduce the concept of en bloc excision (EBE) technique for EEN, including the surgical technique and clinical outcomes.
METHODSA retrospective study was conducted covering September 2009 to May 2013, involving the collection of locoregional rNPC cases from two institutions (Kuang-Tien General Hospital (KTGH) in Taiwan and National University Health System (NUHS) in Singapore). These patients failed prior therapy and then underwent EEN. We reported the 2-year overall survival rate, the 2-year disease-free survival rate, and related complications.
RESULTSNine patients (five from KTGH and four from NUHS) completed this study, with five, two, and two patients of recurrence tumors (rT1), rT2, and rT3, respectively. The mean age was 46.4 years (range 32-63); the mean follow-up period was 24.9 months (range 10-45). The 2-year survival rate and the 2-year disease-free rate were 100% and 80%, respectively, in five patients. No significant complications or cases of mortality occurred.
CONCLUSIONSThe EBE concept of EEN is suitable for early rT1 and has relatively encouraging short-term outcomes. In selected rT2, careful EBE can be performed by expanding the surgical field. A clear view of the internal carotid artery-related anatomy is indispensable. In the future, more series may be needed to determine the role of EEN in rNPC patients.
Adult ; Carcinoma ; Endoscopy ; methods ; Female ; Humans ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; surgery ; Retrospective Studies ; Treatment Outcome


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