1.The Thrombectomy Dilemma in Stroke Patients With Active Cancer: To Treat or Not to Treat?
Yohanna KUSUMA ; Mikiya BEPPU ; Beom Joon KIM ; Sung-Chun TANG ; Mikito HAYAKAWA ; Hiroshi YAMAGAMI ; Hiroyuki KAWANO ; Teruyuki HIRANO ; Shinichi YOSHIMURA ; Hamidon BASRI ; Richard LI ; Huy Thang NGUYEN ; Deidre Anne De SILVA ; Keun-Sik HONG ; Jiann-Shing JENG ; Than G. PHAN ; Henry MA ; Bernard YAN ;
Journal of Stroke 2026;28(2):218-227
Endovascular thrombectomy for acute large-vessel occlusion in patients with active cancer remains a difficult clinical decision. Multiple cohort studies and meta-analyses indicate that, when standard imaging and clinical criteria are applied, reperfusion success is high and symptomatic intracranial hemorrhage is broadly comparable with non-cancer populations, arguing against categorical exclusion. At the same time, registries show lower 90-day functional independence and higher 90-day mortality in active-cancer cohorts—effects likely driven by malignancy-related systemic factors and pre-existing functional compromise rather than procedural harm. This narrative review synthesizes efficacy and safety signals, highlights decision-grade outcomes that are seldom reported—early neurological change, performance status around 90 days, and whether systemic anticancer therapy is started or resumed. It sets out a clinical–ethical–economic framework to support selection, consent, and aftercare, including a pragmatic pathway for under-resourced settings based on non-contrast computed tomography (CT) or single-phase CT angiography where advanced perfusion imaging or magnetic resonance imaging are unavailable. We outline an Asia–Pacific collaborative program designed to identify subgroups that may benefit from reperfusion and initiation of active cancer care.
2.National Institutes of Health Stroke Scale: comparison of original and modified versions for Singapore culture.
Shu Han LIM ; Tai Yan GUEK ; Fung Peng WOON ; Deirdre Danyi TAY ; Shu Swen HO ; Szu Chyi NG ; Deidre Anne DE SILVA
Singapore medical journal 2023;64(9):563-566
INTRODUCTION:
The National Institutes of Health Stroke Scale (NIHSS), originally designed in the United States of America, contains items on dysphasia and dysarthria that are deemed culturally unsuitable for the Singapore context. We compared the error rates of dysphasia objects, dysphasia phrases and dysarthria words between the original and alternative items in a cohort of Singaporean subjects without dysphasia or dysarthria.
METHODS:
In this prospective study, 140 English-speaking Singaporean subjects without impairments of dysphasia or dysarthria had an assessment of NIHSS items 9 and 10 using the original and alternative items. Paired analyses were conducted for comparison of error rates.
RESULTS:
The error rates were high for four original dysphasia objects (Hammock: 62.9%, Cactus: 38.6%, Feather: 23.6%, Glove: 20.7%) and significantly lower for alternative items (Snail: 5%, Horse: 1.4%, Hanger: 1.4%, Car: 0%) (P < 0.001). For dysphasia phrases and dysarthria words, the error rates were low and there were no differences in error rates between the original and alternative items.
CONCLUSION
There are cultural issues with several dysphasia objects in the original NIHSS as evidenced by the high error rates, which were lowered with more culturally suitable alternatives. This study formed a basis to derive a more suitable version of the NIHSS for English-speaking subjects in Singapore.
Humans
;
United States
;
Animals
;
Horses
;
Stroke/diagnosis*
;
Singapore
;
Dysarthria/diagnosis*
;
Prospective Studies
;
National Institutes of Health (U.S.)
;
Aphasia/diagnosis*
;
Severity of Illness Index
6.Long-Term Trends in Ischemic Stroke Incidence and Risk Factors: Perspectives from an Asian Stroke Registry
Benjamin Y.Q. TAN ; Joshua T.C. TAN ; Dawn CHEAH ; Huili ZHENG ; Pin Pin PEK ; Deidre A. DE SILVA ; Aftab AHMAD ; Bernard P.L. CHAN ; Hui Meng CHANG ; Keng He KONG ; Sherry H. YOUNG ; Kok Foo TANG ; Tian Ming TU ; Leonard Leong-Litt YEO ; Narayanaswamy VENKETASUBRAMANIAN ; Andrew F.W. HO ; Marcus Eng Hock ONG
Journal of Stroke 2020;22(3):396-399
7.Intracranial dural arteriovenous fistula mimicking ischemic stroke and treated with intravenous thrombolysis
You-Jiang Tan ; Santhosh Raj Seela Raj ; 1 Deidre Anne De Silva
Neurology Asia 2020;25(2):193-196
Stroke patients are evaluated with a non-contrasted brain computed tomography (CT) scan for
decision-making for intravenous thrombolysis. We report a case of a patient who presented with
receptive aphasia, and was administered IV alteplase after the non-contrasted brain CT showed no
contraindication. However, a dural arteriovenous fistula (dAVF) was detected on the subsequent CT
angiography performed in the consideration for endovascular therapy. The patient developed fatal
symptomatic intra-cerebral hemorrhage, despite subsequent cessation and reversal of thrombolysis.
This case highlights how early CT angiography can be useful in hyper-acute stroke patients beyond
the detection of large vessel occlusions, with its ability in revealing stroke mimics such as dural
arteriovenous fistula and other contraindications to thrombolysis, which may be missed on the noncontrasted brain CT.
8.Surveys of Stroke Patients and Their Next of Kin on Their Opinions towards Decision-Making and Consent for Stroke Thrombolysis.
Nithia ANGAMUTHU ; Kian Kheng QUECK ; Sumytra MENON ; Shu Swen HO ; Elaine ANG ; Deidre Anne De SILVA
Annals of the Academy of Medicine, Singapore 2017;46(2):50-63
INTRODUCTIONEarly initiation of stroke thrombolysis is associated with improved outcomes. Procurement of consent is a key factor in prolonging the door-to-needle duration. This study aimed to determine the attitudes and preferences of stroke patients and their next of kin (NOK) towards decision-making for stroke thrombolysis in Singapore.
MATERIALS AND METHODSWe surveyed acute ischaemic stroke patients (n = 171) who presented beyond the 4.5-hour therapeutic window and their NOK (n = 140) using a questionnaire with scenarios on obtaining consent for intravenous thrombolysis.
RESULTSIn the patient survey, 83% were agreeable for their NOK to decide on their behalf if mentally incapacitated and 74% were agreeable for the doctor to decide if the NOK was absent. In the NOK survey, the majority (81%) wanted to be consulted before mentally capacitated patients made their decision; 72% and 74%, meanwhile, were willing to decide on behalf of a mentally capacitated and mentally incapacitated patient, respectively. In the scenario where a doctor recommended a mentally incapacitated stroke patient to undergo thrombolysis but the family declined, there was a near equal split in preference to follow the family's or doctor's decision in both the patient and NOK surveys.
CONCLUSIONThe survey found that in the decision-making process for stroke thrombolysis, there was no clear consensus on the preference for the decision maker of the mentally incapacitated patient. In Singapore, there is a strong influence of the NOK in decision-making for thrombolysis.
Attitude to Health ; Brain Ischemia ; complications ; psychology ; therapy ; Decision Making ; Dissent and Disputes ; Humans ; Informed Consent ; Mental Competency ; Proxy ; Singapore ; Stroke ; etiology ; psychology ; therapy ; Surveys and Questionnaires ; Thrombolytic Therapy ; Time-to-Treatment
9.Underutilisation of Guideline-based Therapy Primary Prevention among Patients Presenting with AF-related Ischaemic Stroke.
Natasha FABIAÑA ; Arun Prakas RAMASWAMI ; Elaine S L ANG ; Deidre Anne De SILVA
Annals of the Academy of Medicine, Singapore 2015;44(7):266-268
Aged
;
Aged, 80 and over
;
Anticoagulants
;
therapeutic use
;
Aspirin
;
therapeutic use
;
Atrial Fibrillation
;
complications
;
drug therapy
;
Brain Ischemia
;
etiology
;
prevention & control
;
Dabigatran
;
therapeutic use
;
Dipyridamole
;
therapeutic use
;
Female
;
Guideline Adherence
;
statistics & numerical data
;
Humans
;
Male
;
Middle Aged
;
Platelet Aggregation Inhibitors
;
therapeutic use
;
Practice Guidelines as Topic
;
Primary Prevention
;
statistics & numerical data
;
Pyrazoles
;
therapeutic use
;
Pyridones
;
therapeutic use
;
Rivaroxaban
;
therapeutic use
;
Stroke
;
etiology
;
prevention & control
;
Ticlopidine
;
analogs & derivatives
;
therapeutic use
;
Warfarin
;
therapeutic use
10.Stroke literacy in Singapore: data from a survey of public housing estate residents.
Weiyen LIM ; Ding Fang CHUANG ; Koy Min CHUE ; Damian Z LEE ; Nicholas J LEONG ; Zhi Guang NG ; Kailing PENG ; Xiayan SHEN ; Ye Ni THAM ; Kangjie WANG ; Deidre Anne De SILVA
Annals of the Academy of Medicine, Singapore 2014;43(9):454-463
INTRODUCTIONKnowledge of stroke symptoms is associated with seeking medical attention early, and knowledge of risk factors is an essential factor in stroke prevention. In this study, we evaluated the level of stroke literacy in Singapore.
MATERIALS AND METHODSA cross-sectional study of Singapore citizens and permanent residents aged 21 years and above was conducted in a public housing estate. Participants were randomly sampled using multi-stage stratified sampling. Assessment of awareness of stroke symptoms and risk factors was performed using open-ended questions. In total, 687 respondents were recruited, with a response rate of 69.7%.
RESULTSOverall, 52.4% of respondents identified the brain as the source of pathology, and 47.6% could cite at least 1 of the 3 FAST symptoms (facial droop, arm weakness and speech difficulty), while 40% could name 2 or more of 7 established risk factors for stroke (high blood pressure, high cholesterol, cigarette smoking, diabetes mellitus, older age, previous heart attacks and stroke). Respondents at higher risk of stroke (older individuals and those with stroke risk factors) did not have greater awareness of stroke symptoms and risk factors. The majority of respondents reported they would seek immediate medical care if they experienced stroke symptoms. Only 59.4% knew the emergency ambulance service telephone number.
CONCLUSIONIn a sample of Singaporean adults residing in a public housing estate, we found evidence of poor stroke literacy, highlighting the need for comprehensive population-based education efforts. There is a role for opportunistic education among those at higher risk of stroke.
Adult ; Aged ; Cross-Sectional Studies ; Female ; Health Literacy ; Humans ; Male ; Middle Aged ; Public Housing ; Risk Factors ; Singapore ; Socioeconomic Factors ; Stroke ; Surveys and Questionnaires ; Young Adult


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