1.Use of metallic ureteric stents for chronic ureteric obstruction and its association with value-based care.
Yu Xi Terence LAW ; Ang ZHOU ; David Terrence CONSIGLIERE ; Benjamin Yen Seow GOH ; Ho Yee TIONG
Singapore medical journal 2025;66(1):28-32
INTRODUCTION:
We aimed to compare the real-world data and our clinical experience with metallic stents (MSs) and conventional polymeric stents (PSs) in the management of both malignant and benign chronic ureteric obstruction (CUO), in terms of clinical outcomes and costs.
METHODS:
Clinical data from our institution, including outcomes for all ureteric stents inserted for long-term management of CUO from all causes from 2014 to 2017, were retrospectively reviewed and compared between the MS and PS episodes.
RESULTS:
A total of 247 stents were placed in 63 patients with CUO over the 4-year study period. Of these, 45 stents were MSs. There was no significant difference in all baseline characteristics between the MS and PS groups, except for the aetiology of obstructive cause. Mean indwelling stent duration was significantly greater for MS than for PS (228.6 ± 147.0 vs. 146.1 ± 66.0 days, P < 0.001), thereby leading to lower average number of stent changes per year in the MS group compared to the PS group (1.4 vs. 6.3 times, respectively). Despite the higher unit cost of MS compared to PS, there was no significant mean cost difference overall (cost per dwelling day SGD 7.82 ± SGD 10.44 vs. SGD 8.23 ± SGD 20.50, P = 0.888).
CONCLUSION
Resonance MS is a better option than PS to manage CUO from malignant and benign causes because its significantly longer indwelling time mitigates the higher unit cost of the stent. It potentially reduces the number of procedures and operations in patients. Thus, it should be considered for all patients with CUO requiring long-term ureteric drainage.
Humans
;
Ureteral Obstruction/economics*
;
Female
;
Male
;
Retrospective Studies
;
Stents/economics*
;
Middle Aged
;
Aged
;
Treatment Outcome
;
Chronic Disease
;
Ureter/surgery*
;
Metals
;
Adult
;
Aged, 80 and over
2.Development of the modified Safety Attitude Questionnaire for the medical imaging department.
Ravi Chanthriga ETURAJULU ; Maw Pin TAN ; Mohd Idzwan ZAKARIA ; Karuthan CHINNA ; Kwan Hoong NG
Singapore medical journal 2025;66(1):33-40
INTRODUCTION:
Medical errors commonly occur in medical imaging departments. These errors are frequently influenced by patient safety culture. This study aimed to develop a suitable patient safety culture assessment tool for medical imaging departments.
METHODS:
Staff members of a teaching hospital medical imaging department were invited to complete the generic short version of the Safety Attitude Questionnaire (SAQ). Internal consistency and reliability were evaluated using Cronbach's α. Confirmatory factor analysis (CFA) was conducted to examine model fit. A cut-off of 60% was used to define the percentage positive responses (PPR). PPR values were compared between occupational groups.
RESULTS:
A total of 300 complete responses were received and the response rate was 75.4%. In reliability analysis, the Cronbach's α for the original 32-item SAQ was 0.941. Six subscales did not demonstrate good fit with CFA. A modified five-subscale, 22-item model (SAQ-MI) showed better fit (goodness-to-fit index ≥0.9, comparative fit index ≥ 0.9, Tucker-Lewis index ≥0.9 and root mean square error of approximation ≤0.08). The Cronbach's α for the 22 items was 0.921. The final five subscales were safety and teamwork climate, job satisfaction, stress recognition, perception of management and working condition, with PPR of 62%, 68%, 57%, 61% and 60%, respectively. Statistically significant differences in PPR were observed between radiographers, doctors and others occupational groups.
CONCLUSION
The modified five-factor, 22-item SAQ-MI is a suitable tool for the evaluation of patient safety culture in a medical imaging department. Differences in patient safety culture exist between occupation groups, which will inform future intervention studies.
Humans
;
Surveys and Questionnaires
;
Patient Safety
;
Attitude of Health Personnel
;
Diagnostic Imaging
;
Reproducibility of Results
;
Male
;
Female
;
Adult
;
Job Satisfaction
;
Factor Analysis, Statistical
;
Middle Aged
;
Hospitals, Teaching
;
Safety Management
;
Organizational Culture
;
Medical Errors/prevention & control*
3.Paediatric one-day admission: why and is it necessary?
Jing Zhan LOCK ; Zi Xean KHOO ; Jen Heng PEK
Singapore medical journal 2025;66(1):15-19
INTRODUCTION:
Paediatric patients admitted to the inpatient units from the emergency department (ED) are increasing, but the mean length of stay has fallen significantly. We aimed to determine the reasons behind paediatric one-day admissions in Singapore and to assess their necessity.
METHODS:
A retrospective study involving paediatric patients who were admitted from a general ED of an adult tertiary hospital to a paediatric tertiary hospital between 1 August 2018 and 30 April 2020. One-day admission was defined as an inpatient stay of less than 24 h from the time of admission to discharge. An unnecessary admission was defined as one with no diagnostic test ordered, intravenous medication administered, therapeutic procedure performed or specialty review made in the inpatient unit. Data were captured in a standardised form and analysed.
RESULTS:
There were 13,944 paediatric attendances - 1,160 (8.3%) paediatric patients were admitted. Among these, 481 (41.4%) were one-day admissions. Upper respiratory tract infection (62, 12.9%), gastroenteritis (60, 12.5%) and head injury (52, 10.8%) were the three most common conditions. The three most common reasons for ED admissions were inpatient treatment (203, 42.2%), inpatient monitoring (185, 38.5%) and inpatient diagnostic investigations (32, 12.3%). Ninety-six (20.0%) one-day admissions were unnecessary.
CONCLUSION
Paediatric one-day admissions present an opportunity to develop and implement interventions targeted at the healthcare system, the ED, the paediatric patient and their caregiver, in order to safely slow down and perhaps reverse the trend of increased hospital admissions.
Humans
;
Retrospective Studies
;
Singapore
;
Child
;
Emergency Service, Hospital/statistics & numerical data*
;
Patient Admission/statistics & numerical data*
;
Female
;
Male
;
Child, Preschool
;
Length of Stay/statistics & numerical data*
;
Infant
;
Adolescent
;
Tertiary Care Centers
;
Hospitalization/statistics & numerical data*
;
Infant, Newborn
;
Gastroenteritis/therapy*
;
Respiratory Tract Infections
4.Immune thrombocytopenia in infants: a retrospective study with comparison to toddlers.
Singapore medical journal 2025;66(1):20-23
INTRODUCTION:
Immune thrombocytopenia (ITP) is the most common cause of acquired bleeding in childhood, but little is known about the clinical course and outcomes in infants with ITP.
METHODS:
This is a retrospective study of all infants (1-12 months of age) and toddlers (13-47 months of age) diagnosed with ITP from a single centre during a 13-year period. The following data were compared between the two patients groups: demographics, severity of bleeding, platelet counts, duration of illness, development of chronic ITP, treatment and association with recent vaccination.
RESULTS:
Twenty-two infants and 30 toddlers were diagnosed and followed up for ITP during the study period. Infants with ITP generally had minor or mild bleeding (19, 86.4%) and seldom required treatment (7, 31.8%), and their thrombocytopenia resolved at a mean of 1.90 months after diagnosis. Besides age, the sex ratio, severity of bleeding, platelet counts and proportion that required treatment were comparable between infants and toddlers. Fewer infants developed chronic ITP (1/22 vs. 9/30, P = 0.032), but more infants had a history of vaccination in the preceding 6 weeks prior to diagnosis of ITP (13/22 vs. 1/30, P < 0.001).
CONCLUSION
ITP in infants is almost always a self-limiting and transient illness, and the majority of cases do not require treatment.
Humans
;
Retrospective Studies
;
Infant
;
Male
;
Purpura, Thrombocytopenic, Idiopathic/complications*
;
Female
;
Child, Preschool
;
Platelet Count
;
Hemorrhage
5.Post COVID-19 syndrome and new onset diseases: a prospective observational study.
Nitin SINHA ; Mahinder Pal Singh CHAWLA ; Desh DEEPAK ; Amit SURI ; Piyush JAIN ; Ankit AGARWAL ; Manoj Kumar BHAKHAR
Singapore medical journal 2025;66(7):354-361
INTRODUCTION:
The National Institute of Health and Care Excellence (NICE) has defined the terms, 'acute coronavirus disease 2019' (COVID-19), 'ongoing symptomatic COVID-19' and 'post-COVID-19 syndrome', with the latter two described as having persistent symptoms after the onset of COVID-19 symptoms for 4-12 weeks and >12 weeks, respectively. Persistent symptoms can either be due to the after-effects of COVID-19 or new-onset diseases after acute COVID-19. All symptoms observed beyond 4 weeks after the onset of COVID-19 need not be present at the time of onset. Previous studies on persistent post-COVID-19 symptoms have not mentioned new-onset diseases after acute COVID-19, and only a select few studies have discussed such new-onset symptoms.
METHODS:
Ninety-five patients who attended the post-COVID-19 clinic completed the requisite follow-up till 16 weeks after COVID-19 symptom onset. Data was recorded on a predesigned proforma. Necessary investigations were conducted to rule out any other cause of persistent symptoms.
RESULTS:
Fatigue (62.1%), breathlessness (50.5%) and cough (27.4%) were the most common symptoms present beyond 4 weeks after the onset of COVID-19 symptoms. Forty-nine (51.57%) patients developed post-COVID-19 syndrome - their severity of symptoms (odds ratio [OR] 17.77) and longer duration of hospital stay (OR 1.095) during acute disease were significantly associated with the development of post-COVID-19 syndrome. During follow-up, 25 patients developed new-onset symptoms, such as diabetes mellitus, hypertension and idiopathic tachycardia.
CONCLUSION
Patients can have persistent symptoms, new-onset symptoms and new-onset diseases after recovery from acute COVID-19.
Humans
;
COVID-19/diagnosis*
;
Female
;
Male
;
Prospective Studies
;
Middle Aged
;
Adult
;
Fatigue/etiology*
;
Post-Acute COVID-19 Syndrome
;
SARS-CoV-2
;
Aged
;
Cough/etiology*
;
Dyspnea/etiology*
6.Prevalence of impostor phenomenon and burnout in a Singapore health system.
Jun Hui TAN ; Ke Xin EH ; Zheng Jye LING
Singapore medical journal 2025;66(10):540-544
INTRODUCTION:
Impostor phenomenon (IP) is a set of feelings encountered by individuals of being incompetent, despite experiencing successes. IP affects not only individuals on a personal level, but also organisations where the leadership diversity decreases due to employees' self-doubt. We aim to investigate the prevalence of IP and burnout among employees in the National University Health System (NUHS).
METHODS:
All permanently employed full-time NUHS employees aged 21 years and above were invited to participate in this self-administered cross-sectional study between April 2021 and August 2021. Mass emails with the embedded study link were sent every 2-3 weeks to the employees' corporate email accounts.
RESULTS:
In our study, 61% of our study respondents reported having IP experiences and 97% reported having burnout. The associations of IP with ethnicity and age group were significant. Post hoc tests, however, showed that the association was statistically significant only in the 21-29 years age group.
CONCLUSION
We found that there was no statistical significance between gender and the Maslach Burnout Inventory (MBI) profile types. However, we found that IP was significantly associated with individuals in the 21-29 years age group. This could be because younger individuals who just entered workforce may feel uncomfortable with their newfound independence and responsibility. Workplace support, such as workshops, and emotional support were found to be useful in helping individuals cope with IP. Future studies could be done post coronavirus disease 2019 (COVID-19) pandemic among healthcare workers to have a larger sample size to determine true IP and burnout prevalence.
Humans
;
Singapore/epidemiology*
;
Adult
;
Male
;
Female
;
Burnout, Professional/psychology*
;
Cross-Sectional Studies
;
Prevalence
;
Middle Aged
;
Young Adult
;
Surveys and Questionnaires
;
COVID-19/epidemiology*
;
Workplace/psychology*
7.Gastrointestinal transit time of radiopaque ingested foreign bodies in children: experience of two paediatric tertiary centres.
Chen Xiang ANG ; Win Kai MUN ; Marion Margaret AW ; Diana LIN ; Shu-Ling CHONG ; Lin Yin ONG ; Shireen Anne NAH
Singapore medical journal 2025;66(1):24-27
INTRODUCTION:
Foreign body (FB) ingestion is a common paediatric emergency. While guidelines exist for urgent intervention, less is known of the natural progress of FBs passing through the gastrointestinal tract (GIT). We reviewed these FB transit times in an outpatient cohort.
METHODS:
A retrospective review was performed on all children (≤18 years) treated for radiopaque FB ingestion at two major tertiary paediatric centres from 2015 to 2016. Demographic data, FB types, outcomes and hospital visits (emergency department [ED] and outpatient) were recorded. All cases discharged from the ED with outpatient follow-up were included. We excluded those who were not given follow-up appointments and those admitted to inpatient wards. We categorised the outcomes into confirmed passage (ascertained via abdominal X-ray or reported direct stool visualisation by patients/caregivers) and assumed passage (if patients did not attend follow-up appointments).
RESULTS:
Of the 2,122 ED visits for FB ingestion, 350 patients who were given outpatient follow-up appointments were reviewed (median age 4.35 years [range: 0.5-14.7], 196 [56%] male). The largest proportion (16%) was aged 1-2 years. Coins were the most common ingested FB, followed by toys. High-risk FB (magnets or batteries) formed 9% of cases ( n =33). The 50 th centile for FB retention was 8, 4 and 7 days for coins, batteries and other radiopaque FBs, respectively; all confirmed passages occurred at 37, 7 and 23 days, respectively. Overall, 197 (68%) patients defaulted on their last given follow-up.
CONCLUSION
This study provides insight into the transit times of FB ingested by children, which helps medical professionals to decide on the optimal time for follow-up visits and provide appropriate counsel to caregivers.
Adolescent
;
Child
;
Child, Preschool
;
Female
;
Humans
;
Infant
;
Male
;
Eating
;
Emergency Service, Hospital
;
Foreign Bodies/diagnostic imaging*
;
Gastrointestinal Tract/diagnostic imaging*
;
Gastrointestinal Transit
;
Retrospective Studies
;
Singapore
;
Tertiary Care Centers
8.Risk and protective factors associated with adolescent depression in Singapore: a systematic review.
Wei Sheng GOH ; Jun Hao Norman TAN ; Yang LUO ; Sok Hui NG ; Mohamed Sufyan Bin Mohamed SULAIMAN ; John Chee Meng WONG ; Victor Weng Keong LOH
Singapore medical journal 2025;66(1):2-14
INTRODUCTION:
Adolescent depression is prevalent, and teen suicide rates are on the rise locally. A systemic review to understand associated risk and protective factors is important to strengthen measures for the prevention and early detection of adolescent depression and suicide in Singapore. This systematic review aims to identify the factors associated with adolescent depression in Singapore.
METHODS:
A systematic search on the following databases was performed on 21 May 2020: PubMed, EMBASE and PsycINFO. Full texts were reviewed for eligibility, and the included studies were appraised for quality using the Newcastle Ottawa Scale. Narrative synthesis of the finalised articles was performed through thematic analysis.
RESULTS:
In total, eight studies were included in this review. The four factors associated with adolescent depression identified were: (1) sociodemographic factors (gender, ethnicity); (2) psychological factors, including childhood maltreatment exposure and psychological constructs (hope, optimism); (3) coexisting chronic medical conditions (asthma); and (4) lifestyle factors (sleep inadequacy, excessive internet use and pathological gaming).
CONCLUSION
The identified factors were largely similar to those reported in the global literature, except for sleep inadequacy along with conspicuously absent factors such as academic stress and strict parenting, which should prompt further research in these areas. Further research should focus on current and prospective interventions to improve mental health literacy, targeting sleep duration, internet use and gaming, and mitigating the risk of depression in patients with chronic disease in the primary care and community setting.
Humans
;
Singapore/epidemiology*
;
Adolescent
;
Risk Factors
;
Depression/etiology*
;
Protective Factors
;
Male
;
Female
;
Life Style
;
Suicide
9.COVID-19 vaccine acceptance among kidney transplant recipients in Singapore.
Ian Tatt LIEW ; Hanis Abdul KADIR ; Sobhana THANGARAJU ; Quan Yao HO ; Eleanor NG ; Fiona FOO ; Terence KEE
Singapore medical journal 2025;66(2):73-80
INTRODUCTION:
A successful vaccination programme forms the cornerstone of controlling coronavirus disease 2019 (COVID-19). The unprecedented speed of COVID-19 vaccine development and lack of long-term data have raised fears regarding its safety and efficacy. Vaccine hesitancy can undermine the uptake, and hence success of the vaccination programme. Given the high complication rates of COVID-19 infections in kidney transplant recipients, it is particularly important to identify and address vaccine hesitancy in this population.
METHODS:
We conducted a cross-sectional survey among kidney transplant recipients attending transplant clinic between 5 April and 5 May 2021. The survey assessed attitudes towards COVID-19, willingness/hesitancy towards COVID-19 vaccination, vaccination concerns and prompts to vaccination. This was scored on a Likert scale with scores ranging from 'strongly disagree' - 1 point to 'strongly agree' - 5 points.
RESULTS:
One hundred and one completed responses were captured. Of these, 86% respondents reported to agree or strongly agree to vaccination. This was despite significant concerns of allograft rejection (mean score 4.12, standard deviation [SD] 0.97) and decreased immunosuppressant efficacy (mean score 4.14, SD 0.96) with vaccination. Multivariable model showed a positive association with transplant vintage of ≥ 5 years (median 2.41), lower educational levels of secondary school or less (median 5.82) and healthcare provider advocacy (median 1.88) in predicting vaccine acceptance.
CONCLUSIONS
Vaccine acceptance rate was high among kidney transplant recipients. Vaccine hesitancy remains a concern in those with a transplant vintage of less than 5 years and those with tertiary educational level. Healthcare provider advocacy is important in improving vaccine acceptance rates.
Humans
;
Kidney Transplantation
;
Singapore/epidemiology*
;
Male
;
Cross-Sectional Studies
;
Female
;
COVID-19 Vaccines
;
COVID-19/epidemiology*
;
Middle Aged
;
Adult
;
Transplant Recipients/psychology*
;
Patient Acceptance of Health Care/statistics & numerical data*
;
Vaccination Hesitancy/psychology*
;
Surveys and Questionnaires
;
Vaccination/psychology*
;
Aged
;
SARS-CoV-2
10.Post-resuscitation care of patients with return of spontaneous circulation after out-of-hospital cardiac arrest at the emergency department.
Jing Kai Jackie LAM ; Jen Heng PEK
Singapore medical journal 2025;66(2):66-72
INTRODUCTION:
Out-of-hospital-cardiac-arrest (OHCA) is a major public health challenge and post-return-of-spontaneous-circulation (ROSC) goals have shifted from just survival to survival with intact neurology. Although post-ROSC care is crucial for survival with intact neurology, there are insufficient well-established protocols for post-resuscitation care. We aimed to evaluate post-resuscitation care in the emergency department (ED) of adult (aged ≥16 years) OHCA patients with sustained ROSC and its associated neurologically intact survival.
METHODS:
A retrospective review of electronic medical records was conducted for OHCA patients with sustained ROSC at the ED. Data including demographics, pre-hospital resuscitation, ED resuscitation, post-resuscitation care and eventual outcomes were analysed.
RESULTS:
Among 921 OHCA patients, 85 (9.2%) had sustained ROSC at the ED. Nineteen patients (19/85, 22.4%) survived, with 13 (13/85, 15.3%) having intact neurology at discharge. Electrocardiogram and chest X-ray were performed in all OHCA patients, whereas computed tomography (CT) was performed inconsistently, with CT brain being most common (74/85, 87.1%), while CT pulmonary angiogram (6/85, 7.1%), abdomen and pelvis (4/85, 4.7%) and aortogram (2/85, 2.4%) were done infrequently. Only four patients (4.7%) had all five neuroprotective goals of normoxia, normocarbia, normotension, normothermia and normoglycaemia achieved in the ED. The proportion of all five neuroprotective goals being met was significantly higher ( P = 0.01) among those with neurologically intact survival (3/13, 23.1%) than those without (1/72, 1.4%).
CONCLUSION
Post-resuscitation care at the ED showed great variability, indicating gaps between recommended guidelines and clinical practice. Good quality post-resuscitation care, centred around neuroprotection goals, must be initiated promptly to achieve meaningful survival with intact neurology.
Humans
;
Out-of-Hospital Cardiac Arrest/mortality*
;
Retrospective Studies
;
Male
;
Female
;
Middle Aged
;
Emergency Service, Hospital
;
Cardiopulmonary Resuscitation/methods*
;
Return of Spontaneous Circulation
;
Aged
;
Adult
;
Treatment Outcome
;
Electrocardiography
;
Tomography, X-Ray Computed
;
Aged, 80 and over

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