1.Morphological analysis of anatomical structure of nasopharynx in cone-beam computed tomography in Korean population
Chena LEE ; Ji Yun LEE ; David MACDONALD
Imaging Science in Dentistry 2026;56(1):93-99
Purpose:
This study evaluated the nasopharyngeal anatomy, particularly the fossa of Rosenmüller (FoR), on cone-beam computed tomography (CBCT) in a Korean population to establish normative reference data by sex and age.
Materials and Methods:
In CBCT images, FoR was classified into three types (A-C) for image analysis. Measurements of nasopharyngeal dimensions were performed in Types B and C. Sex- and age-related differences were evaluatedusing chi-square and independent t-tests, and reliability was assessed using the intraclass correlation coefficient.
Results:
In total, 492 CBCTs (244 males, 248 females; 20-69 years) were included. Type C was the most frequent morphology and increased with age. Types A and B were more prevalent among males than among females, whereas Type C was predominant among females (57.3%) compared with males (34.4%). Asymmetry was more frequent in males (13.9%) than in females (10.1%). Significant sex differences due to the larger males were found in the distance of the torus levatorius, the distance between the sphenopalatine notch and the right torus levatorius, and the horizontaland vertical dimensions of the FoR. No significant side-to-side differences were observed. Reliability was excellent(ICC = 0.97).
Conclusion
Type C was the most frequent morphology in both sexes, whereas Types A and B were more frequently observed in males than in females. These differences may indirectly contribute to sex-related disparities in nasopharyngeal carcinoma (NPC) incidence. The normative reference values may aid early detection in dental imaging, and further prospective studies including NPC patients are needed to clarify the role of nasopharyngeal morphology.
2.Risk Factors for “Adjacent-Level Ossification Development” Other Than Short Plate-to-Disc Distance and Clinical Implications for Adjacent-Segment Pathology
Sang Hun LEE ; Micheal RAAD ; David B. COHEN ; Khaled M. KEBAISH ; Lee H. RILEY III
Neurospine 2025;22(1):194-201
Purpose:
To identify factors associated with adjacent-level ossification development (ALOD) after anterior cervical discectomy and fusion (ACDF) and associated clinical outcomes.
Methods:
We retrospectively reviewed records of 140 adults who underwent primary ACDF for degenerative disc disease. We compared patients with and without ALOD after ACDF. Radiographic measurements and factors associated with ALOD were assessed preoperatively and at minimum 24-month follow-up. Clinical outcomes were incidence of clinical adjacent-segment pathologies (CASP), revision surgery, and patient-reported outcomes.
Results:
Factors associated with both cranial and caudal ALOD were short plate-to-disc distance (PDD), adjacent-segment kyphosis, hyperlordotic ACDF causing junctional segment kyphosis, and preoperative ossification of the anterior longitudinal ligament (OALL). Mean final adjacent-segment range of motion (ROM) was less in those with cranial ALOD (6.9° ± 2.8°) than in those without cranial ALOD (12° ± 4.2°) (p < 0.01). Mean final adjacent-segment ROM was also less in those with caudal ALOD (5.5° ± 2.4º) than in those without caudal ALOD (8.2º ± 3.7º) (p < 0.01). The incidence of CASP-required surgery was higher in those with caudal ALOD (p = 0.02) but no different in those with cranial ALOD (p = 0.69) compared with those without ALOD.
Conclusion
Factors associated with ALOD were a kyphotic segment adjacent to ACDF, hyperlordotic fusion, preoperative OALL, and short PDD. ALOD was associated with less segmental ROM and, for those with caudal but not cranial ALOD, higher incidence of revision surgery for CASP.
3.Analysis of early clinical indicator improvements among patients with pre-diabetes, type 2 diabetes mellitus, and hypertension in the Chronic Disease Co-Care Pilot Scheme of the Hong Kong Special Administrative Region, China
Mak Ivy LYNN ; Lee Ming HIN ; Jiayue ZHANG ; Linda CHAN ; Martin ROLAND ; David BISHAI ; Michael KIDD
Chinese Journal of General Practitioners 2025;24(12):1482-1495
Objective:To analyze early improvements in clinical indicators among patients with pre-diabetes (pre-DM), type 2 diabetes mellitus (T2DM), and hypertension (HT) participating in the Chronic Disease Co-Care (CDCC) Pilot Scheme in the Hong Kong Special Administrative Region of the People′s Republic of China (HKSAR). Methods:This longitudinal study enrolled participants with pre-DM, T2DM, and HT who participated in the CDCC Pilot Scheme between November 2023 and May 2024. Baseline clinical data was collected. All participants were managed followed standardized protocols: family doctors issued prescriptions in accordance with the Hong Kong Reference Framework by the Health Bureau of the Government of the HKSAR, District Health Centre (DHC) and DHC Express provided health education, and personalized counseling by allied health professionals (nurses, optometrists, and dietitians). During the screening phase, screening costs, including consultations and related laboratory investigations, were fully covered by the Government of the HKSAR, while partial subsidies were available during the treatment phase. Participants were followed for 6 months. Primary outcomes were glycated hemoglobin A1c (HbA1c) for pre-DM and T2DM, and blood pressure for HT. Secondary outcomes included body mass index (BMI), triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and the Framingham model-based 10-year cardiovascular risk score. Changes in clinical indicators from baseline to 6 months were analyzed using a linear mixed model, with subgroup analyses by age, sex, and baseline Framingham 10-year cardiovascular disease risk score. Results:A total of 3 910 participants were included in the study, comprising 903 (23.1%) with pre-DM, 478 (12.2%) with T2DM, and 2 529 (64.7%) with HT. Pre-DM participants had an age of (61.4±7.0) years with 641 (71.0%) females; T2DM participants had an age of (60.4±7.4) years with 247 (51.7%) females; HT participants had an age of (60.8±7.9) years with 1 237 (48.9%) females. At 6 months, HbA1c levels declined in the pre-DM and T2DM groups by -0.09% (95% CI:-0.10%--0.07%) and -1.06% (95% CI:-1.21%--0.91%), respectively. In the HT group, systolic blood pressure decreased by 15.3 mmHg (1 mmHg=0.133 kPa) (95% CI:-16.0--14.6 mmHg) and diastolic blood pressure by 8.6 mmHg (95% CI:-9.0--8.1 mmHg). BMI decreased in the three groups, with the largest reduction in the T2DM group (-1.04 kg/m 2, 95% CI:-1.22--0.86 kg/m 2). TC, TG, and LDL-C levels decreased in the three groups (all P<0.05). Subgroup analysis revealed that among HT participants, individuals with a baseline Framingham 10-year cardiovascular disease risk of ≥20% experienced greater reductions in blood pressure compared to those with a risk <20% ( P<0.05). Additionally, male participants demonstrated significantly lower diastolic blood pressure than female participants ( P<0.05). Among participants with T2DM, males exhibited greater reductions in HbA1c levels than females, and participants aged 45-64 years showed significantly lower HbA1c levels compared to those aged 65 years and older (both P<0.05). Conclusions:In the early phase of the CDCC Pilot Scheme, glycemic, blood pressure, lipid, and BMI indicators improved among patients with pre-DM, T2DM, and HT. These effects were particularly pronounced in males and in individuals younger than 65 years of age.
4.Analysis of early clinical indicator improvements among patients with pre-diabetes, type 2 diabetes mellitus, and hypertension in the Chronic Disease Co-Care Pilot Scheme of the Hong Kong Special Administrative Region, China
Mak Ivy LYNN ; Lee Ming HIN ; Jiayue ZHANG ; Linda CHAN ; Martin ROLAND ; David BISHAI ; Michael KIDD
Chinese Journal of General Practitioners 2025;24(12):1482-1495
Objective:To analyze early improvements in clinical indicators among patients with pre-diabetes (pre-DM), type 2 diabetes mellitus (T2DM), and hypertension (HT) participating in the Chronic Disease Co-Care (CDCC) Pilot Scheme in the Hong Kong Special Administrative Region of the People′s Republic of China (HKSAR). Methods:This longitudinal study enrolled participants with pre-DM, T2DM, and HT who participated in the CDCC Pilot Scheme between November 2023 and May 2024. Baseline clinical data was collected. All participants were managed followed standardized protocols: family doctors issued prescriptions in accordance with the Hong Kong Reference Framework by the Health Bureau of the Government of the HKSAR, District Health Centre (DHC) and DHC Express provided health education, and personalized counseling by allied health professionals (nurses, optometrists, and dietitians). During the screening phase, screening costs, including consultations and related laboratory investigations, were fully covered by the Government of the HKSAR, while partial subsidies were available during the treatment phase. Participants were followed for 6 months. Primary outcomes were glycated hemoglobin A1c (HbA1c) for pre-DM and T2DM, and blood pressure for HT. Secondary outcomes included body mass index (BMI), triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and the Framingham model-based 10-year cardiovascular risk score. Changes in clinical indicators from baseline to 6 months were analyzed using a linear mixed model, with subgroup analyses by age, sex, and baseline Framingham 10-year cardiovascular disease risk score. Results:A total of 3 910 participants were included in the study, comprising 903 (23.1%) with pre-DM, 478 (12.2%) with T2DM, and 2 529 (64.7%) with HT. Pre-DM participants had an age of (61.4±7.0) years with 641 (71.0%) females; T2DM participants had an age of (60.4±7.4) years with 247 (51.7%) females; HT participants had an age of (60.8±7.9) years with 1 237 (48.9%) females. At 6 months, HbA1c levels declined in the pre-DM and T2DM groups by -0.09% (95% CI:-0.10%--0.07%) and -1.06% (95% CI:-1.21%--0.91%), respectively. In the HT group, systolic blood pressure decreased by 15.3 mmHg (1 mmHg=0.133 kPa) (95% CI:-16.0--14.6 mmHg) and diastolic blood pressure by 8.6 mmHg (95% CI:-9.0--8.1 mmHg). BMI decreased in the three groups, with the largest reduction in the T2DM group (-1.04 kg/m 2, 95% CI:-1.22--0.86 kg/m 2). TC, TG, and LDL-C levels decreased in the three groups (all P<0.05). Subgroup analysis revealed that among HT participants, individuals with a baseline Framingham 10-year cardiovascular disease risk of ≥20% experienced greater reductions in blood pressure compared to those with a risk <20% ( P<0.05). Additionally, male participants demonstrated significantly lower diastolic blood pressure than female participants ( P<0.05). Among participants with T2DM, males exhibited greater reductions in HbA1c levels than females, and participants aged 45-64 years showed significantly lower HbA1c levels compared to those aged 65 years and older (both P<0.05). Conclusions:In the early phase of the CDCC Pilot Scheme, glycemic, blood pressure, lipid, and BMI indicators improved among patients with pre-DM, T2DM, and HT. These effects were particularly pronounced in males and in individuals younger than 65 years of age.
5.Psychological resilience among emergency medical teams in Singapore
Eunice Chan ; Jacqueline Tan ; David Teng ; Joy Quah ; Jimmy Lee ; Mathew Yeo ; Pek Jen Heng
Western Pacific Surveillance and Response 2025;16(3):11-15
Problem: Emergency medical teams (EMTs) responding to mass casualty incidents attend to casualties in a chaotic, high-pressure and resource-limited environment that is vastly different from their day-to-day work. The nature of mass casualty incidents and the work environment can impact psychological resilience, but the psychological resilience of members of EMTs has not been evaluated.
Context: In Singapore, EMTs are deployed from public hospitals, polyclinics and the Singapore Red Cross to disaster sites, where they triage, stabilize and treat casualties before evacuating them to public hospitals for further management.
Action: Twenty-four members of EMTs responded to a cross-sectional survey based on a psychological resilience tool developed for health-care rescuers involved in mass casualty incidents to evaluate their psychological resilience after a full-scale exercise involving an aviation accident. Respondents completed a psychological resilience tool that was developed by experts in disaster work and research using a modified Delphi approach. There were 27 items across eight domains: optimism, altruism, preparations for disaster rescue, social support, perceived control, self-efficacy, coping strategies and positive growth.
Outcome: The key observations from the survey were that (i) staff demonstrated a strong sense of altruism and had good social support; (ii) staff were not confident about their preparedness, and this led to a lack of optimism, perceived control and ability to deal with emotions; and (iii) it was necessary for respondents to reflect on their experience to find meaning to support growth after the deployment.
Discussion: Optimizing casualty survival and outcomes during mass casualty incidents requires not only excellent procedural training and robust standard operating procedures and work processes but also dedicated efforts to enhance the psychological resilience of members of EMTs.
6.Omicron SARS-CoV-2 outcomes in vaccinated individuals with heart failure and ischaemic heart disease.
Liang En WEE ; Enoch Xueheng LOY ; Jue Tao LIM ; Yew Woon CHIA ; Shir Lynn LIM ; Jonathan YAP ; Khung Keong YEO ; Derek J HAUSENLOY ; Mark Yan Yee CHAN ; David Chien Boon LYE ; Kelvin Bryan TAN
Annals of the Academy of Medicine, Singapore 2025;54(5):270-282
INTRODUCTION:
Outcomes after SARS-CoV-2 Omicron infection in patients with heart failure (HF) and ischaemic heart disease (IHD) remain poorly defined.
METHOD:
In a highly vaccinated cohort of adult Singapore citizens and permanent residents, we used Cox proportional hazards models (adjusted for sociodemographic variables and comorbidities) to compare the risks of Omicron infection, COVID-19- related hospitalisation, and severe COVID-19 between indivi-duals with HF or IHD and matched controls without these conditions.
RESULTS:
From national databases, we identified 15,426 HF patients matched 1:∼3 to 41,221 controls, and 110,442 IHD patients matched 1:∼2 to 223,843 controls. Over 80% of HF and IHD patients had received at least 3 vaccine doses. During the Omicron-predominant period, both HF and IHD cohorts demonstrated higher adjusted risks of COVID-19 hospitalisation compared with matched controls (HF: adjusted hazard ratio [aHR] 1.77, 95% confidence interval [CI] 1.65-1.90; IHD: aHR 1.21, 95% CI 1.17-1.26). Among those with at least 1 HF-or IHD-related admission in the prior year, hospitalisation risk was further elevated (HF: aHR 1.27, 95% CI 1.13-1.42; IHD: aHR 1.11, 95% CI 1.01-1.23). Receipt of ≥3 vaccine doses was associated with substantially lower risk of severe COVID-19 versus only 2 doses (HF: aHR 0.35, 95% CI 0.28-0.43; IHD: aHR 0.27, 95% CI 0.23-0.32). A fourth dose conferred additional reductions in infection and adverse outcomes, though CIs for infection overlapped with those for 3 doses.
CONCLUSION
During Omicron predominance, HF and IHD patients experienced greater risk of COVID-19 hospitalisation and severe COVID-19 versus matched controls. Booster vaccinations attenuated these risks. Individuals with recent HF/IHD admissions should be prioritised for receipt of booster vaccine doses.
Humans
;
COVID-19/complications*
;
Male
;
Heart Failure/complications*
;
Myocardial Ischemia/complications*
;
Female
;
Middle Aged
;
Hospitalization/statistics & numerical data*
;
Aged
;
COVID-19 Vaccines/administration & dosage*
;
Singapore/epidemiology*
;
SARS-CoV-2
;
Proportional Hazards Models
;
Adult
;
Case-Control Studies
;
Vaccination/statistics & numerical data*
7.Singapore consensus statements on the management of obstructive sleep apnoea.
Leong Chai LEOW ; Chuen Peng LEE ; Sridhar VENKATESWARAN ; Michael Teik Chung LIM ; Oon Hoe TEOH ; Ruth CHANG ; Yam Cheng CHEE ; Khai Beng CHONG ; Ai Ping CHUA ; Joshua GOOLEY ; Hong Juan HAN ; Nur Izzianie KAMARUDDIN ; See Meng KHOO ; Lynn Huiting KOH ; Shaun Ray Han LOH ; Kok Weng LYE ; Mark IGNATIUS ; Yingjuan MOK ; Jing Hao NG ; Thun How ONG ; Chu Qin PHUA ; Rui Ya SOH ; Pei Rong SONG ; Adeline TAN ; Alvin TAN ; Terry TAN ; Jenny TANG ; David TAY ; Jade TAY ; Song Tar TOH ; Serene WONG ; Chiang Yin WONG ; Mimi YOW
Annals of the Academy of Medicine, Singapore 2025;54(10):627-643
INTRODUCTION:
Obstructive sleep apnoea (OSA) is common in Singapore, with moderate to severe OSA affecting around 30% of residents. These consensus statements aim to provide scientifically grounded recommendations for the management of OSA, standar-dise the management of OSA in Singapore and promote multidisciplinary collaboration.
METHOD:
An expert panel, which was convened in 2024, identified several areas of OSA management that require guidance. The expert panel reviewed the current literature and developed consensus statements, which were later independently voted on using a 3-point Likert scale (agree, neutral or disagree). Consensus (total ratings of agree and neutral) was set a priori at ≥80% agreement. Any statement not reaching consensus was excluded.
RESULTS:
The final consensus included 49 statements that provide guidance on the screening, diagnosis and management of adults with OSA. Additionally, 23 statements on the screening, diagnosis and management of paediatric OSA achieved consensus. These 72 consensus statements considered not only the latest clinical evidence but also the benefits and harms, resource implications, feasibility, acceptability and equity impact of the recommendations.
CONCLUSION
The statements presented in this paper aim to guide clinicians based on the most updated evidence and collective expert opinion from sleep specialists in Singapore. These recommendations should augment clinical judgement rather than replace it. Management decisions should be individualised, taking into account the patient's clinical characteristics, as well as patient and caregiver concerns and preferences.
Humans
;
Sleep Apnea, Obstructive/diagnosis*
;
Singapore
;
Consensus
;
Adult
8.Comparison of colorectal cancer surgery patients in intensive care between rural and metropolitan hospitals in Australia: a national cohort study
Jessica A. PAYNTER ; Zakary DOHERTY ; Chun Hin Angus LEE ; Kirby R. QIN ; Janelle BRENNAN ; David PILCHER
Annals of Coloproctology 2025;41(1):68-76
Purpose:
A small proportion of colorectal cancer (CRC) surgical patients will require an admission to an intensive care unit (ICU) within the early postoperative period. This study aimed to compare the characteristics and outcomes of patients admitted to an ICU following CRC surgery per hospital type (metropolitan vs. rural) over a decade in Australia.
Methods:
A retrospective cohort analysis was undertaken of all adult patients admitted to a participating Australian ICUs following CRC surgery between January 2011 and December 2021. The primary outcome was in-hospital mortality.
Results:
Over the 10-year period, 19,611 patients were treated in 122 metropolitan ICUs and 4,108 patients were treated in 42 rural ICUs. Rural ICUs had a lower proportion of annual admissions following CRC surgery (20 vs. 36, P<0.001). Patients admitted to a rural ICU were more likely to have undergone emergency CRC surgery compared to those admitted to a metropolitan cohort (28.5% vs. 13.8%, P<0.001). There was no difference in in-hospital mortality between metropolitan and rural hospitals (odds ratio [OR], 1.03; 95% confidence interval [CI], 0.73–1.35; P=0.500). There was a general trend for lower mortality in later years of the study with the odds of death in the final year of the study (2021) almost half that of the first study year (OR, 0.52; 95% CI, 0.34–0.80; P=0.003).
Conclusion
There was no difference between in-hospital mortality outcomes for CRC surgical patients requiring ICU admission between metropolitan and rural hospitals. These findings may contribute to discussions regarding rural scope of colorectal practice within Australia and globally.
9.Comparison of colorectal cancer surgery patients in intensive care between rural and metropolitan hospitals in Australia: a national cohort study
Jessica A. PAYNTER ; Zakary DOHERTY ; Chun Hin Angus LEE ; Kirby R. QIN ; Janelle BRENNAN ; David PILCHER
Annals of Coloproctology 2025;41(1):68-76
Purpose:
A small proportion of colorectal cancer (CRC) surgical patients will require an admission to an intensive care unit (ICU) within the early postoperative period. This study aimed to compare the characteristics and outcomes of patients admitted to an ICU following CRC surgery per hospital type (metropolitan vs. rural) over a decade in Australia.
Methods:
A retrospective cohort analysis was undertaken of all adult patients admitted to a participating Australian ICUs following CRC surgery between January 2011 and December 2021. The primary outcome was in-hospital mortality.
Results:
Over the 10-year period, 19,611 patients were treated in 122 metropolitan ICUs and 4,108 patients were treated in 42 rural ICUs. Rural ICUs had a lower proportion of annual admissions following CRC surgery (20 vs. 36, P<0.001). Patients admitted to a rural ICU were more likely to have undergone emergency CRC surgery compared to those admitted to a metropolitan cohort (28.5% vs. 13.8%, P<0.001). There was no difference in in-hospital mortality between metropolitan and rural hospitals (odds ratio [OR], 1.03; 95% confidence interval [CI], 0.73–1.35; P=0.500). There was a general trend for lower mortality in later years of the study with the odds of death in the final year of the study (2021) almost half that of the first study year (OR, 0.52; 95% CI, 0.34–0.80; P=0.003).
Conclusion
There was no difference between in-hospital mortality outcomes for CRC surgical patients requiring ICU admission between metropolitan and rural hospitals. These findings may contribute to discussions regarding rural scope of colorectal practice within Australia and globally.
10.Changes in Candidemia during the COVID-19 Pandemic: Species Distribution, Antifungal Susceptibility, Initial Antifungal Usage, and Mortality Trends in Two Korean Tertiary Care Hospitals
Ahrang LEE ; Minji KIM ; Sarah KIM ; Hae Seong JEONG ; Sung Un SHIN ; David CHO ; Doyoung HAN ; Uh Jin KIM ; Jung Ho YANG ; Seong Eun KIM ; Kyung-Hwa PARK ; Sook-In JUNG ; Seung Ji KANG
Chonnam Medical Journal 2025;61(1):52-58
This study aimed to investigate changes in candidemia incidence, species distribution, antifungal susceptibility, initial antifungal use, and mortality trends in Korea before and during the COVID-19 pandemic. A retrospective analysis was conducted on candidemia cases from two tertiary care hospitals in Korea between 2017 and 2022. Data were compared between the pre-pandemic (2017-2019) and pandemic (2020-2022) periods. Statistical methods included incidence rate ratios (IRRs) and multivariate Cox regression to assess 30-day mortality risk factors. A total of 470 candidemia cases were identified, with 48.7% occurring pre-pandemic and 51.3% during the pandemic. While the overall incidence of candidemia remained similar across the two periods (IRR 1.15;p=0.13), the incidence in intensive care units (ICUs) significantly increased during the pandemic (IRR 1.50; p<0.01). The distribution of Candida species did not differ significantly between the two periods. Fluconazole non-susceptibility in C. albicans markedly decreased (10.0% vs. 0.9%, p<0.01), whereas C. glabrata exhibited a significant rise in caspofungin non-susceptibility during the pandemic (0% vs. 22.4%, p<0.01).Echinocandin use increased (21.8% vs. 34.4%; p<0.01), while fluconazole use declined (48.0% vs. 32.8%; p<0.01). Although the 30-day mortality rate was higher during the pandemic (60.2% vs. 57.2%), the difference was not statistically significant (p=0.57).The findings highlight the need for region-specific surveillance and tailored management strategies to improve candidemia outcomes, especially during healthcare disruptions like the COVID-19 pandemic.


Result Analysis
Print
Save
E-mail