1.Outcomes of antenatally detected omphalocele and gastroschisis: a single-centre study over 11 years.
Amudha Jayanthi ANAND ; Mei Chien CHUA ; Devaki VISWALINGAM ; Rambha RAI ; Wee Hong Edwin THIA ; Bhavani SRIRAM ; Victor Samuel RAJADURAI ; Suresh CHANDRAN
Singapore medical journal 2025;66(12):674-678
3.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
4.Effectiveness of an online patient education video for transcatheter aortic valve implantation.
Samuel Ji Quan KOH ; Jonathan YAP ; Chun Yen KOK ; Yilin JIANG ; Yu Jen LOO ; Michelle Wei Ling HO ; Yu Fei LIM ; See Hooi EWE ; Mohammed Rizwan AMANULLAH ; Zameer Abdul AZIZ ; Sivaraj GOVINDASAMY ; Victor CHAO ; Kay Woon HO
Annals of the Academy of Medicine, Singapore 2025;54(3):197-199
5.Virtual reality-based cognitive training for MCI in the elderly: A feasibility randomised pilot study.
Zaylea KUA ; Rebecca Hui Shan ONG ; Nicole Yun Ching CHEN ; Peng Soon YOON ; Samuel Teong Huang CHEW ; YanHong DONG ; Louisa Mei Ying TAN
Annals of the Academy of Medicine, Singapore 2025;54(7):445-447
6.Ruptured aneurysm of the medial posterior choroidal artery in the pineal region: A rare location easily missed
Samuel HALL ; Difei WANG ; Vishnu SURESH ; Nicholas BORG ; Diederik BULTERS
Journal of Cerebrovascular and Endovascular Neurosurgery 2025;27(1):66-70
Aneurysms of the pineal region are rare and theoretically could arise from the medial posterior choroidal artery (MPChoA) or lateral posterior choroidal arteries (LPChoA). A 64-year-old lady with subarachnoid haemorrhage (SAH) and intraventricular haemorrhage (IVH) due to a ruptured MPChoA aneurysm was treated with microsurgical aneurysm excision via an occipital interhemispheric approach. This case demonstrates the importance of being mindful of rare aneurysm locations when initial vascular imaging in SAH appears normal.
7.A viable alternative to local flaps in the hand? A case report demonstrating the successful use of NovoSorb Biodegradable Temporising Matrix in hand trauma
Iain ROY ; Robert MANTON ; Samuel COULSON-WOODLEY ; Patrick GOON
Archives of hand and microsurgery 2025;30(2):110-113
Soft tissue reconstruction is a common requirement in managing hand trauma, and an eclectic mixture of flaps has been described for when vascularized tissue is required. The authors report the novel use of NovoSorb Biodegradable Temporising Matrix (NovoSorb BTM; PolyNovo Biomaterials) for a finger defect that would have ordinarily necessitated coverage by vascularized tissue. The patient made a positive and timely recovery, with return to his premorbid level of functioning. The authors have continued to utilize NovoSorb BTM in a number of cases and found it to represent a robust and versatile addition to our reconstructive quiver for managing soft tissue defects in the hand.
8.Ruptured aneurysm of the medial posterior choroidal artery in the pineal region: A rare location easily missed
Samuel HALL ; Difei WANG ; Vishnu SURESH ; Nicholas BORG ; Diederik BULTERS
Journal of Cerebrovascular and Endovascular Neurosurgery 2025;27(1):66-70
Aneurysms of the pineal region are rare and theoretically could arise from the medial posterior choroidal artery (MPChoA) or lateral posterior choroidal arteries (LPChoA). A 64-year-old lady with subarachnoid haemorrhage (SAH) and intraventricular haemorrhage (IVH) due to a ruptured MPChoA aneurysm was treated with microsurgical aneurysm excision via an occipital interhemispheric approach. This case demonstrates the importance of being mindful of rare aneurysm locations when initial vascular imaging in SAH appears normal.
9.A viable alternative to local flaps in the hand? A case report demonstrating the successful use of NovoSorb Biodegradable Temporising Matrix in hand trauma
Iain ROY ; Robert MANTON ; Samuel COULSON-WOODLEY ; Patrick GOON
Archives of hand and microsurgery 2025;30(2):110-113
Soft tissue reconstruction is a common requirement in managing hand trauma, and an eclectic mixture of flaps has been described for when vascularized tissue is required. The authors report the novel use of NovoSorb Biodegradable Temporising Matrix (NovoSorb BTM; PolyNovo Biomaterials) for a finger defect that would have ordinarily necessitated coverage by vascularized tissue. The patient made a positive and timely recovery, with return to his premorbid level of functioning. The authors have continued to utilize NovoSorb BTM in a number of cases and found it to represent a robust and versatile addition to our reconstructive quiver for managing soft tissue defects in the hand.
10.Effect of 50-Hz Filters on Pattern Electroretinogram
Dong Hee HA ; Nam Ju MOON ; Ungsoo Samuel KIM
Korean Journal of Ophthalmology 2025;39(3):241-245
Purpose:
Pattern electroretinogram (PERG) is used to evaluate the function of retinal ganglion cells. However, the amplitude of PERG is quite small, making the examination challenging to perform. Waveform noise may be minimized by applying various filters. We aimed to investigate the effect of 50-Hz filters on PERG test results.
Methods:
This is the retrospective observational study. PERG tests were performed using the RETI-scan system according to the International Society for Clinical Electrophysiology of Vision guidelines. Three types of 50-Hz filters (soft, middle, and hard) were applied. The differences in parameters (N35 peak time, P50 peak time, N95 peak time, P50 amplitude, N95 amplitude, and N95 to P50 ratio) were analyzed. Based on the provided normal range, the changes from normal to abnormal range or vice versa were investigated.
Results:
A total of 24 waveforms were analyzed. After filtering, the P50 and N95 amplitudes showed a significant reduction of 8% to 15% (P50 amplitude: 5.1 ± 2.7 μV without filter, 4.6 ± 2.3 μV with 50-Hz soft filter, 4.3 ± 2.1 μV with 50-Hz middle filter, 4.3 ± 2.1 μV with 50-Hz hard filter; N95 amplitude: 7.2 ± 4.2 μV without filter, 6.6 ± 3.8 μV with 50-Hz soft filter, 6.3 ± 3.6 μV with 50-Hz middle filter, 6.1 ± 3.6 μV with 50-Hz hard filter). This pattern was more prominent in normal subjects. All latencies except the N35 peak time exhibited no differences between the tests. The N95 to P50 ratio decreased after 50-Hz middle and hard filtering. Considering the normative data, switching between normal and abnormal results was rare.
Conclusions
Although peak time was not significantly affected, amplitude was significantly reduced after using 50-Hz filters. Thus, 50-Hz filters can smoothen the waveform. Nevertheless, caution must be exercised while taking readings.

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