Hsien Seow

Dr. Hsien Seow

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
20 March 2011 in Journal of Clinical Oncology
Verified
Journal Article
Closed access
HSHsien Seow
Hsien Seow
LBLisa Barbera
Lisa Barbera
RSRinku Sutradhar
Rinku Sutradhar
Doris HowellDoris Howell
Doris Howell
DDDeborah Dudgeon
Deborah Dudgeon
CECraig Earle
Craig Earle
Purpose: Ontario's cancer system is unique because it has implemented two standardized assessment tools population-wide to improve care: the Edmonton Symptom Assessment System (ESAS) measures severity of nine symptoms (scale 0 to 10; 10 indicates the worst) and the Palliative Performance Scale (PPS) measures performance status (scale 0 to 100; 0 indicates death). This article describes the trajectory of ESAS and PPS scores 6 months before death. Patients and Methods: Observational cohort study of cancer decedents between 2007 and 2009. Decedents required ≥1 ESAS or PPS assessment in the 6 months before death for inclusion. Outcomes were the decedents' average ESAS and PPS scores per week before death. Results: Ten thousand seven hundred fifty-two (ESAS) and 7,882 (PPS) decedents were included. The mean age was 65 years, half were female, and approximately 75% of assessments occurred in cancer clinics. Average PPS score declined slowly over the 6 months before death, starting at approximately 70 and ending at 40, declining more rapidly in the last month. For ESAS symptoms, average pain, nausea, anxiety, and depression scores remained relatively stable over the 6 months. Conversely, shortness of breath, drowsiness, well-being, lack of appetite, and tiredness increased in severity over time, particularly in the month before death. More than one third of the cohort reported moderate to severe scores (ie, 4 to 10) for most symptoms in the last month of life. Conclusion: In this large outpatient cancer population, trajectories of mean ESAS scores followed two patterns: increasing versus generally flat. The latter was perhaps due to available treatment (eg, prescriptions) for those symptoms. Future research should prioritize addressing symptoms that worsen over time.

6 June 2014 in BMJ
Verified
Journal Article
Open access
PDF file
HSHsien Seow
Hsien Seow
KBKevin Brazil
Kevin Brazil
JSJonathan Sussman
Jonathan Sussman
JPJosé Pereira
José Pereira
DMDenise Marshall
Denise Marshall
LBLisa Barbera
Lisa Barbera
Objective To determine the pooled effect of exposure to one of 11 specialist palliative care teams providing services in patients’ homes. Design Pooled analysis of a retrospective cohort study. Setting Ontario, Canada. Participants 3109 patients who received care from specialist palliative care teams in 2009-11 (exposed) matched by propensity score to 3109 patients who received usual care (unexposed). Intervention The palliative care teams studied served different geographies and varied in team composition and size but had the same core team members and role: a core group of palliative care physicians, nurses, and family physicians who provide integrated palliative care to patients in their homes. The teams’ role was to manage symptoms, provide education and care, coordinate services, and be available without interruption regardless of time or day. Main outcome measures Patients (a) being in hospital in the last two weeks of life; (b) having an emergency department visit in the last two weeks of life; or (c) dying in hospital. Results In both exposed and unexposed groups, about 80% had cancer and 78% received end of life homecare services for the same average duration. Across all palliative care teams, 970 (31.2%) of the exposed group were in hospital and 896 (28.9%) had an emergency department visit in the last two weeks of life respectively, compared with 1219 (39.3%) and 1070 (34.5%) of the unexposed group (P<0.001). The pooled relative risks of being in hospital and having an emergency department visit in late life comparing exposed versus unexposed were 0.68 (95% confidence interval 0.61 to 0.76) and 0.77 (0.69 to 0.86) respectively. Fewer exposed than unexposed patients died in hospital (503 (16.2%) v 887 (28.6%), P<0.001), and the pooled relative risk of dying in hospital was 0.46 (0.40 to 0.52). Conclusions Community based specialist palliative care teams, despite variation in team composition and geographies, were effective at reducing acute care use and hospital deaths at the end of life.

5 April 2018 in BMJ Open
Verified
Journal Article
Open access
PDF file
HSHsien Seow
Hsien Seow
EOErin O’lEary
Erin O’lEary
RPRichard Perez
Richard Perez
PTPeter Tanuseputro
Peter Tanuseputro
Objectives To examine access to palliative care between different disease trajectories and compare to other geographic areas. Design A retrospective population-based decedent cohort study using linked administrative data. Setting Ontario, Canada. Participants Ontario decedents between 1 April 2010 and 31 December 2012. Patients were categorised into disease trajectories: terminal illness (eg, cancer), organ failure (eg, chronic heart failure), frailty (eg, dementia), sudden death or other. Interventions Receipt of palliative care services from institutional and community settings, derived from a validated list of palliative care codes from multiple administrate databases. Outcome measures Receiving any palliative care services in the last year of life (yes/no), intensity (total days) and time of initiation of palliative care, in hospital and community sectors. Multivariable analysis examined the association between disease trajectory and the receipt of palliative care in the last year of life. Results We identified 235 159 decedents in Ontario. In the last year of life, 88% of terminal illness, 44% of organ failure and 32% of frailty decedents accessed at least one palliative care service. Most care was provided during an inpatient hospitalisation. Terminal illness decedents received twice as many palliative care days (mean of 49 days) compared with organ failure and frailty decedents. Patients with terminal illness initiated palliative care median of 107 days before death compared with median of 19 days among those using the US Medicare hospice benefit. Conclusions Terminal illness decedents are more likely to receive any palliative care, with increased intensity and earlier before death than organ failure or frailty decedents. These data serve as a useful comparison for other countries with similar and different healthcare systems and eligibility criteria.

1 November 2012 in Journal of Oncology Practice
Verified
Journal Article
Closed access
HSHsien Seow
Hsien Seow
JSJonathan Sussman
Jonathan Sussman
LMLorraine Martelli-Reid
Lorraine Martelli-Reid
GPGreg Pond
Greg Pond
DBDaryl Bainbridge
Daryl Bainbridge
The authors examine whether patient visits with higher symptom scores are associated with higher rates of symptom documentation in the chart and symptom-specific actions being taken.

14 August 2020 in Cancer Medicine
Verified
Journal Article
Open access
PDF file
LBLisa Barbera
Lisa Barbera
RSRinku Sutradhar
Rinku Sutradhar
HSHsien Seow
Hsien Seow
NMNicole Mittmann
Nicole Mittmann
DHDoris Howell
Doris Howell
DTDeva Thiruchelvam
Deva Thiruchelvam
Background: The Edmonton Symptom Assessment System (ESAS) is a validated instrument whose use has been standardized in the Ontario cancer system to measure symptoms among ambulatory cancer patients. The objective was to examine the effect of ESAS exposure on overall survival. We hypothesized, a priori, that patients exposed to ESAS would have higher rates of overall survival than those who were not exposed.Methods: This was a retrospective matched cohort study of adults diagnosed with cancer between 2007 and 2015. Patients were considered exposed if they were screened with ESAS at least once during the study period. Their first ESAS screening date defined the index date. Each exposed patient was matched randomly to a cancer patient without ESAS using a combination of hard matching (4 variables) and propensity score matching (14 variables). Kaplan‐Meier curves and multivariable Cox regression were used to evaluate the impact of ESAS exposure on survival.Results: There were 128,893 pairs well matched on all baseline characteristics. The probability of survival within the first 5 years was higher among those exposed to ESAS compared to those who were not (81.9% vs. 76.4% at 1 year, 68.3% vs. 66.1% at 3 years, 61.9% vs. 61.4% at 5 years, P‐value < .0001). In the multivariable Cox regression model, ESAS was significantly associated with a decreased mortality risk (HR: 0.48, 95% CI: 0.47‐0.49).Conclusions: Our results show that ESAS exposure is associated with improved survival in cancer patients. This provides real world evidence of the impact of routine symptom assessment in cancer care.

3 December 2018 in Palliative Medicine
Verified
Journal Article
Open access
DQDanial Qureshi
Danial Qureshi
PTPeter Tanuseputro
Peter Tanuseputro
RPRichard Perez
Richard Perez
GPGreg R Pond
Greg R Pond
HSHsien Seow
Hsien Seow
Background: Early palliative care can reduce end-of-life acute-care use, but findings are mainly limited to cancer populations receiving hospital interventions. Few studies describe how early versus late palliative care affects end-of-life service utilization. Aim: To investigate the association between early versus late palliative care (hospital/community-based) and acute-care use and other publicly funded services in the 2 weeks before death. Design: Retrospective population-based cohort study using linked administrative healthcare data. Setting/participants: Decedents (cancer, frailty, and organ failure) between 1 April 2010 and 31 December 2012 in Ontario, Canada. Initiation time before death (days): early (⩾60) and late (⩾15 and 1 week in acute-care settings (odds ratio = 1.84, 95% confidence interval: 1.83–1.85), frailty decedents were three times more likely (odds ratio = 3.04, 95% confidence interval: 3.01–3.07), and organ failure decedents were four times more likely (odds ratio = 4.04, 95% confidence interval: 4.02–4.06). Conclusion: Early palliative care was associated with improved end-of-life outcomes. Late initiations were associated with greater acute-care use, with the largest influence on organ failure and frailty decedents, suggesting potential opportunities for improvement.