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.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
3.Predicting late aortic complications after acute type A dissection surgery with volumetric measurements in a Singapore cohort.
Jasmine GE ; Vinay Bahadur PANDAY ; Siew-Pang CHAN ; Bernard WEE ; Julian Chi Leung WONG ; Leok Kheng Kristine TEOH ; Moe Thu SAN ; Carlos A MESTRES ; Theodoros KOFIDIS ; Vitaly A SOROKIN
Singapore medical journal 2025;66(9):469-475
INTRODUCTION:
This study was conducted to evaluate the efficacy of postoperative computed tomography (CT) measurements of aortic lumen volumes in predicting aortic-related complications following acute type A aortic dissection (ATAAD) repair.
METHODS:
We conducted a single-institution retrospective aortic volumetric analysis of patients after ascending aorta replacement performed during 2001-2015. The volumetric measurements of total lumen (total-L), true lumen (TL), false lumen (FL), as well as the TL:FL ratio from the first and second postoperative computer angiograms were obtained. A generalised structural equation model was created to analyse the predictive utility of TL:FL ratio.
RESULTS:
One hundred and twenty-five patients underwent surgical intervention, of whom 97 patients were eventually discharged and analysed for postoperative complications. A total of 19 patients were included in the final analysis. Patients with late postoperative aortic complications had a significantly higher FL volume and total-L volume on the first (FL volume P = 0.041, total-L volume P = 0.05) and second (FL volume P = 0.01, total-L volume P = 0.007) postoperative scans. The odds of having aortic complications were raised by 1% with a 1 cm 3 increase in total-L volume and by 2% with a 1 cm 3 increase in FL volume. The TL:FL ratio was significantly lower in patients who developed complications.
CONCLUSION
Postoperative CT volumetric measurements in patients who developed complications are characterised by a significant increase in the FL volume and total-L volume from the first postoperative scans. Patients with disproportionately expanded FL presenting with TL:FL ratios less than 1 were associated with aortic complications. Hence, the TL:FL ratio may be a reliable and useful parameter to monitor postoperative disease progression and to evaluate the risk of late complications in ATAAD patients.
Humans
;
Male
;
Female
;
Retrospective Studies
;
Singapore
;
Aortic Dissection/diagnostic imaging*
;
Middle Aged
;
Postoperative Complications/diagnostic imaging*
;
Aged
;
Tomography, X-Ray Computed
;
Aortic Aneurysm/diagnostic imaging*
;
Aorta/surgery*
;
Adult
;
Treatment Outcome
;
Computed Tomography Angiography
4.Carcinoma buccal mucosa treated with definitive hypofractionated accelerated radiotherapy: a retrospective analysis of treatment outcomes.
Geethu BABU ; Rejnish RAVIKUMAR ; Malu RAFI ; Zuzaki SHARAFUDDIN ; Arun SHANKAR S ; Preethi Sara GEORGE ; Cessal Thommachan KAINICKAL ; Ramadas KUNNAMBATH
Singapore medical journal 2025;66(7):368-372
INTRODUCTION:
Oral cancer is a major public health concern in India. Both conventional and altered fractionation radiotherapy schedules have been used in curative treatment of oral cancer. This study aimed to retrospectively evaluate the clinical profile and treatment outcomes of patients with carcinoma buccal mucosa who underwent treatment with definitive hypofractionated accelerated radiotherapy.
METHODS:
A total of 517 patients treated from January 2011 to December 2016 were eligible for the analysis. All patients were treated with definitive hypofractionated accelerated radiotherapy schedule of 5,250 cGy in 15 fractions over 3 weeks. Survival estimates were generated using the Kaplan-Meier method.
RESULTS:
At a median follow-up of 77.4 months, 473 (91.5%) patients attained complete remission with radiation therapy. The 5-year disease-free survival (DFS) and overall survival (OS) rates were 69% and 80.5%, respectively. The 5-year OS for stage I, II, III and IVa tumours was 80.3%, 84.4%, 81.4% and 73.7%, respectively, and the DFS was 75.7%, 73.2%, 69.6% and 60.2%, respectively. Age >50 years was found to be a significant factor affecting DFS ( P = 0.026) and OS ( P = 0.048) in multivariate analysis. Fifty-three (10.3%) patients developed osteoradionecrosis of the mandible.
CONCLUSION
Excellent outcome could be achieved in less-aggressive, low-volume carcinoma of the buccal mucosa with radical accelerated hypofractionated radiotherapy. A radiotherapy schedule over a 3-week period is useful in high-volume centres.
Humans
;
Retrospective Studies
;
Male
;
Female
;
Middle Aged
;
Mouth Neoplasms/mortality*
;
Mouth Mucosa/radiation effects*
;
Treatment Outcome
;
Aged
;
Adult
;
Radiation Dose Hypofractionation
;
Disease-Free Survival
;
India
;
Kaplan-Meier Estimate
;
Dose Fractionation, Radiation
;
Aged, 80 and over
5.Presenting characteristics, histological subtypes and outcomes of adult central nervous system tumours: retrospective review of a surgical cohort.
Mervyn Jun Rui LIM ; Yilong ZHENG ; Sean Wai-Onn ENG ; Celest Wen Ting SEAH ; Shuning FU ; Lucas Zheng Long LAM ; Joel Yat Seng WONG ; Balamurugan VELLAYAPPAN ; Andrea Li-Ann WONG ; Kejia TEO ; Vincent Diong Weng NGA ; Sein LWIN ; Tseng Tsai YEO
Singapore medical journal 2025;66(10):545-550
INTRODUCTION:
The most recent local study on the incidence of histological subtypes of all brain and spinal tumours treated surgically was published in 2000. In view of the outdated data, we investigated the presenting characteristics, histological subtypes and outcomes of adult patients who underwent surgery for brain or spinal tumours at our institution.
METHODS:
A single-centre retrospective review of 501 patients who underwent surgery for brain or spinal tumours from 2016 to 2020 was conducted. The inclusion criteria were (a) patients who had a brain or spinal tumour that was histologically verified and (b) patients who were aged 18 years and above at the time of surgery.
RESULTS:
Four hundred and thirty-five patients (86.8%) had brain tumours and 66 patients (13.2%) had spinal tumours. Patients with brain tumours frequently presented with cranial nerve palsy, headache and weakness, while patients with spinal tumours frequently presented with weakness, numbness and back pain. Overall, the most common histological types of brain and spinal tumours were metastases, meningiomas and tumours of the sellar region. The most common complications after surgery were cerebrospinal fluid leak, diabetes insipidus and urinary tract infection. In addition, 15.2% of the brain tumours and 13.6% of the spinal tumours recurred, while 25.7% of patients with brain tumours and 18.2% of patients with spinal tumours died. High-grade gliomas and metastases had the poorest survival and highest recurrence rates.
CONCLUSION
This study serves as a comprehensive update of the epidemiology of brain and spinal tumours and could help guide further studies on brain and spinal tumours.
Humans
;
Retrospective Studies
;
Female
;
Male
;
Middle Aged
;
Adult
;
Aged
;
Central Nervous System Neoplasms/pathology*
;
Brain Neoplasms/pathology*
;
Treatment Outcome
;
Postoperative Complications
;
Young Adult
;
Spinal Neoplasms/pathology*
;
Neoplasm Recurrence, Local
;
Aged, 80 and over
;
Adolescent
6.Testicular tumours in children: a single-centre experience.
Sajid ALI ; Tariq LATIF ; Muhammad Ali SHEIKH ; Shazia PERVEEN ; Muhammad BILAL ; Albash SARWAR
Singapore medical journal 2025;66(6):321-326
INTRODUCTION:
Testicular tumours in childhood have diverse characteristics for different age ranges. This study aimed to describe the pattern, presentation and outcomes of primary testicular tumours in a paediatric population.
METHODS:
A retrospective study was conducted from January 2010 to December 2020 on children (≤18 years) with a diagnosis of primary testicular tumour. Baseline demographics, clinical characteristics, pathology, treatment and outcomes of these patients were analysed. The data were entered into IBM SPSS Statistics version 20.0. Chi-square test and Fisher's exact test were applied to find the statistical significance, which was set at P value ≤ 0.05.
RESULTS:
The study included 115 males, with 85 (73.9%) patients in the prepubertal age range with a mean age of 2.53 ± 2.06 years and 30 (26.1%) patients in the postpubertal group with a mean age of 15.73 ± 1.25 years. Yolk sac tumour was the most common (62.6%) histological subtype. Majority (46.1%) of patients had stage I disease on presentation, while 29.6% had stage IV disease. All patients underwent upfront high inguinal radical orchiectomy, which was followed by platinum-based adjuvant chemotherapy in 67% of the patients. The five-year event-free survival and overall survival for all patients were 75% and 91%, respectively.
CONCLUSION
Primary testicular tumours follow a bimodal age distribution pattern. Majority of patients can be cured with platinum-based chemotherapy despite having advanced disease at presentation.
Humans
;
Male
;
Testicular Neoplasms/mortality*
;
Retrospective Studies
;
Adolescent
;
Child
;
Child, Preschool
;
Orchiectomy/methods*
;
Chemotherapy, Adjuvant
;
Treatment Outcome
;
Neoplasm Staging
;
Infant
;
Endodermal Sinus Tumor/therapy*
;
Neoplasms, Germ Cell and Embryonal
7.Low-density lipoprotein cholesterol goal attainment and mortality in ischaemic heart disease: a two-year observational study.
Ying Hui MAK ; Fionn CHUA ; Xuan Han KOH ; Vern Hsen TAN ; Zhong Hui LEE ; Audrey LAM ; Kim Leng TONG ; Colin YEO ; Weien CHOW ; Wann Jia LOH
Singapore medical journal 2025;66(3):154-162
INTRODUCTION:
Achieving low-density lipoprotein cholesterol (LDL-C) levels is key to preventing atherosclerotic cardiovascular events. However, many high-risk cardiovascular patients still experience poor LDL-C goal attainment and receive suboptimal lipid-lowering therapy (LLT) prescriptions. Herein, we evaluated LLT prescription patterns, LDL-C goal attainment and cardiovascular mortality among this population group in Singapore.
METHODS:
This prospective observational cohort study included 555 patients with ischaemic heart disease (IHD) admitted to the hospital in 2020. The LLT prescriptions, corresponding LDL-C levels and cardiovascular outcomes were assessed over a 24-month period.
RESULTS:
Most participants were male (82.3%), with 48.5% identified as Chinese. High-intensity statin prescriptions increased from 45.4% at hospital admission to 87.1% at discharge and remained stable at approximately 80% at 6, 12, and 24 months post-discharge. Combination LLT prescriptions increased from 12.3% at discharge to 33.8% by 24 months. Ezetimibe was the most commonly prescribed second-line LLT (40.8%), followed by inclisiran (1.09%) and anti-proprotein convertase subtilisin/kexin type 9 monoclonal antibody therapies (0.87%). Over 24 months, LDL-C goal attainment rates were 22.1% for LDL-C < 1.4 mmol/L and 47.2% for LDL-C < 1.8 mmol/L. Multivariable Cox proportional hazards regression indicated that achieving LDL-C < 1.8 mmol/L goal was associated with a reduction in all-cause mortality at 24 months (hazard ratio 0.53, 95% confidence interval 0.30-0.94, P = 0.030).
CONCLUSION
Treatment gaps in lipid management persist in 80% of the study population, indicating that statin monotherapy alone is insufficient to achieve LDL-C goals. Greater efforts to improve LDL-C goal attainment rates in high-risk cardiovascular patients are imperative.
Humans
;
Male
;
Cholesterol, LDL/blood*
;
Female
;
Myocardial Ischemia/drug therapy*
;
Middle Aged
;
Prospective Studies
;
Aged
;
Singapore/epidemiology*
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use*
;
Ezetimibe/therapeutic use*
;
Anticholesteremic Agents/therapeutic use*
;
Treatment Outcome
8.Early predictors of rescue therapy and colectomy in acute severe ulcerative colitis.
Samuel Jun Ming LIM ; Kaina CHEN ; Yi Yuan TAN ; Shu Wen TAY ; Thomson Chong Teik LIM ; Ennaliza SALAZAR ; Webber Pak-Wo CHAN ; Malcolm Teck Kiang TAN
Singapore medical journal 2025;66(8):449-456
INTRODUCTION:
Acute severe ulcerative colitis (ASUC) is a significant cause of disease morbidity. One-third of patients with ASUC are steroid refractory. Rescue therapy may not successfully induce remission, necessitating colectomy. We aimed to identify predictors of rescue therapy and colectomy in ASUC assessed within 24 h of admission for early risk stratification.
METHODS:
We conducted a retrospective cohort study of 58 admissions for ASUC among 47 patients from August 2002 to January 2022. Serum biomarkers assessed were measured on admission. Primary outcomes were the need for rescue therapy during the same admission and colectomy within 1 year of admission.
RESULTS:
Rescue therapy (all with infliximab) was given in 20 (34.5%) of the admissions. Colectomy was done within 1 year for nine (15.5%) of the admissions. An elevated C-reactive protein (CRP) of >30 mg/L (relative risk [RR] 1.63), a CRP-albumin ratio of >0.85 (RR 1.63), and a composite factor of both CRP > 30 mg/L and age ≥60 years (RR 2.37) were significantly associated with the need for rescue therapy. Hypoalbuminaemia ≤ 25 g/L (RR 4.35) and the use of biologics at presentation (RR 1.54) were significantly associated with colectomy within 1 year of admission, while a CRP of ≥ 80 mg/L was a significant protective factor (RR 0.70).
CONCLUSION
Patients with ASUC who have elevated CRP or CRP-albumin ratio on admission should be considered at risk for steroid-refractory disease. Those with hypoalbuminaemia on admission and using biologics at presentation are more likely to require colectomy in the first year after admission for ASUC.
Humans
;
Colitis, Ulcerative/therapy*
;
Colectomy
;
Retrospective Studies
;
Male
;
Female
;
Middle Aged
;
Adult
;
C-Reactive Protein/metabolism*
;
Infliximab/therapeutic use*
;
Biomarkers/blood*
;
Acute Disease
;
Aged
;
Severity of Illness Index
;
Treatment Outcome
9.Embracing minimally invasive approaches to colorectal cancer resection.
Nan Zun TEO ; James Weiquan LI ; James Chi Yung NGU ; Tiing Leong ANG
Singapore medical journal 2025;66(Suppl 1):S38-S46
The clinical burden of colorectal cancer (CRC) is high. Population-based screening and early detection are essential to improve the long-term clinical outcome. Nonetheless, a significant proportion of patients still present at an advanced stage, including with acute large bowel obstruction. Image-enhanced endoscopy and artificial intelligence can improve the detection and diagnosis of colonic adenomas and early cancer. Endoscopic resection is regarded as the preferred curative treatment option for colonic adenoma and T0 and T1 CRC limited to the superficial submucosa. Emergency colonic stenting as bridge to interval curative surgery is increasingly accepted as a first-line option when technically feasible. Minimally invasive resection techniques such as laparoscopic colectomy and robot-assisted colorectal surgery have also come of age. These techniques reduce post-treatment morbidity, shorten the recovery process and can be cost-effective while maintaining long-term oncological cure. These outcome measures are relevant to our patients; therefore, minimally invasive approaches to curative resection should be embraced.
Humans
;
Colorectal Neoplasms/surgery*
;
Minimally Invasive Surgical Procedures/methods*
;
Laparoscopy/methods*
;
Colectomy/methods*
;
Robotic Surgical Procedures/methods*
;
Treatment Outcome
;
Colonoscopy/methods*
10.Acupuncture combined with bamboo-based medicinal moxibustion for chronic insomnia complicated with mild depressive state: a randomized controlled trial.
Hongying LI ; Hongxuan WU ; Jin CUI
Chinese Acupuncture & Moxibustion 2025;45(1):3-9
OBJECTIVE:
To observe the clinical efficacy of acupuncture combined with bamboo-based medicinal moxibustion in the treatment of chronic insomnia complicated with mild depressive state.
METHODS:
A total of 60 patients with chronic insomnia complicated with mild depressive state were randomly divided into an observation group and a control group, 30 cases in each group. The control group was treated with acupuncture at bilateral Zhaohai (KI6), Shenmen (HT7), Sanyinjiao (SP6), Anmian (Extra) and Sishencong (EX-HN1), Baihui (GV20), etc. The observation group was treated with bamboo-based medicinal moxibustion based on the treatment in the control group, on the abdomen,Shenque (CV8), Guanyuan (CV4), Zhongwan (CV12) and bilateral Tianshu (ST25) were selected , on the back, the acupoints of governer vessel from Dazhui (GV14) to Yaoshu (GV2) were selected. Both groups were treated once every other day, 3 times a week for 4 weeks. The Pittsburgh sleep quality index (PSQI) score, Hamilton depression scale-17 (HAMD-17) score, insomnia severity index (ISI) score, fatigue assessment instrument (FAI) score before and after treatment and after 2 weeks of treatment completion (follow-up) were observed in the two groups, and the serum level of γ-aminobutyric acid (GABA) before and after treatment was detected in the two groups, and the clinical efficacy and safety were evaluated.
RESULTS:
After treatment and in the follow-up, the sub-item scores and total scores of PSQI in both groups were reduced compared with those before treatment (P<0.001); except for the score of daytime dysfunction in the follow-up, the scores of sleep quality, sleep duration, daytime dysfunction, and total scores of PSQI in the observation group were lower than those in the control group (P<0.05). After treatment and in the follow-up, the HAMD-17, ISI and FAI scores in both groups were reduced compared with those before treatment (P<0.001); the scores in the observation group were lower than those in the control group (P<0.05). After treatment,the serum levels of GABA in both groups were increased compared with those before treatment (P<0.05); the level in the observation group was higher than that in the control group (P<0.05). The total effective rate of treating chronic insomnia in the observation group was 96.7% (29/30), which was higher than 80.0% (24/30) in the control group (P<0.05); and the total effective rate of improving mild depressive state was 93.3% (28/30), which was higher than 66.7% (20/30) in the control group (P<0.001). During the treatment period, no serious adverse reactions occurred in both groups.
CONCLUSION
Acupuncture combined with bamboo-based medicinal moxibustion has definite efficacy in the treatment of chronic insomnia complicated with mild depressive state, and has synergistic efficacy in improving sleep quality, sleep duration, daytime dysfunction and depressive state, its action mechanism may be related to the increase of serum level of GABA.
Humans
;
Moxibustion
;
Sleep Initiation and Maintenance Disorders/therapy*
;
Male
;
Female
;
Middle Aged
;
Adult
;
Depression/therapy*
;
Acupuncture Therapy
;
Combined Modality Therapy
;
Treatment Outcome
;
Aged
;
Young Adult
;
Acupuncture Points

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