A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study

ABSTRACT Background and Aims Neuro‐ischemic ulcers (NIU) present a substantial clinical and economic burden on the healthcare systems. This study aims to evaluate their healing rate, associated healthcare resource utilization, and prognostic factors influencing healing. Methods Consecutive patients...

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Main Authors: Lingyan Meng, Priya Bishnoi, Zhiwen Joseph Lo, Enming Yong, Tze Tec Chong, David Carmody, Rajesh Babu Dharmaraj, Yi Zhen Ng, Keith Harding, Pei Ho
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Health Science Reports
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Online Access:https://doi.org/10.1002/hsr2.70332
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author Lingyan Meng
Priya Bishnoi
Zhiwen Joseph Lo
Enming Yong
Tze Tec Chong
David Carmody
Rajesh Babu Dharmaraj
Yi Zhen Ng
Keith Harding
Pei Ho
author_facet Lingyan Meng
Priya Bishnoi
Zhiwen Joseph Lo
Enming Yong
Tze Tec Chong
David Carmody
Rajesh Babu Dharmaraj
Yi Zhen Ng
Keith Harding
Pei Ho
author_sort Lingyan Meng
collection DOAJ
description ABSTRACT Background and Aims Neuro‐ischemic ulcers (NIU) present a substantial clinical and economic burden on the healthcare systems. This study aims to evaluate their healing rate, associated healthcare resource utilization, and prognostic factors influencing healing. Methods Consecutive patients attended specialist clinics or admitted to wards in three tertiary hospitals for new or existing NIUs from November 2019 to November 2021 were eligible for this study. Each participant was followed up three times (1‐month, 3‐month and 6‐month after enrollment), with ulcer healing as the primary outcome of interest. Cox regression analysis was performed to identify independent predictors of NIU healing. Results In total, 439 patients were recruited. Six months after they seek care in the tertiary healthcare setting, 36.0% of the participants had their ulcer fully healed. Male gender (adjusted HR: 0.71, 95% CI: 0.53–0.93), history of coronary intervention (adjusted HR: 0.62; 95% CI: 0.41–0.93), requirement of lower extremity revascularization (adjusted HR: 0.72; 95% CI: 0.54–0.98) and offloading (adjusted HR: 0.61; 95% CI: 0.46–0.81) were found to be associated with failure to heal. Ulcers located over the toes (adjusted HR: 1.64; 95% CI: 1.17–2.32) was associated with better healing. Dependent activity of daily living (adjusted HR: 0.74; 95% CI: 0.55–1.01) was also potentially a risk factor for slow healing with borderline significance. Nonhealed group of patients incurred higher requirement of revascularization (42.3% vs. 25.3%, p < 0.001), negative pressure wound therapy (40.6% vs. 29.7%, p = 0.03), off‐loading (57.3% vs. 46.8%, p = 0.04) and antibiotic treatment (45.2% vs. 26.6%, p < 0.001), compared to those in the healed group. Conclusion NIU imposes a significant burden on both patients and the healthcare system in Singapore, with low healing rates even after 6 months of tertiary‐level care. Early identification and risk stratification of high‐risk patients may help improve outcomes.
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spelling doaj-art-a47d29054a484a6295e90ae0f34d72f52025-01-29T03:42:39ZengWileyHealth Science Reports2398-88352025-01-0181n/an/a10.1002/hsr2.70332A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort StudyLingyan Meng0Priya Bishnoi1Zhiwen Joseph Lo2Enming Yong3Tze Tec Chong4David Carmody5Rajesh Babu Dharmaraj6Yi Zhen Ng7Keith Harding8Pei Ho9Department of Cardiac, Thoracic and Vascular Surgery National University Health System Singapore SingaporeWound Care Innovation for the Tropics Programme, Skin Research Institute of Singapore, A*STAR Singapore SingaporeCentre for Population Health Sciences, Lee Kong Chian School of Medicine Nanyang Technological University Singapore SingaporeVascular Surgery Service, Department of General Surgery Tan Tock Seng Hospital Singapore SingaporeDepartment of Vascular Surgery Singapore General Hospital Singapore SingaporeDepartment of Endocrinology Singapore General Hospital Singapore SingaporeDepartment of Cardiac, Thoracic and Vascular Surgery National University Health System Singapore SingaporeWound Care Innovation for the Tropics Programme, Skin Research Institute of Singapore, A*STAR Singapore SingaporeWound Care Innovation for the Tropics Programme, Skin Research Institute of Singapore, A*STAR Singapore SingaporeDepartment of Cardiac, Thoracic and Vascular Surgery National University Health System Singapore SingaporeABSTRACT Background and Aims Neuro‐ischemic ulcers (NIU) present a substantial clinical and economic burden on the healthcare systems. This study aims to evaluate their healing rate, associated healthcare resource utilization, and prognostic factors influencing healing. Methods Consecutive patients attended specialist clinics or admitted to wards in three tertiary hospitals for new or existing NIUs from November 2019 to November 2021 were eligible for this study. Each participant was followed up three times (1‐month, 3‐month and 6‐month after enrollment), with ulcer healing as the primary outcome of interest. Cox regression analysis was performed to identify independent predictors of NIU healing. Results In total, 439 patients were recruited. Six months after they seek care in the tertiary healthcare setting, 36.0% of the participants had their ulcer fully healed. Male gender (adjusted HR: 0.71, 95% CI: 0.53–0.93), history of coronary intervention (adjusted HR: 0.62; 95% CI: 0.41–0.93), requirement of lower extremity revascularization (adjusted HR: 0.72; 95% CI: 0.54–0.98) and offloading (adjusted HR: 0.61; 95% CI: 0.46–0.81) were found to be associated with failure to heal. Ulcers located over the toes (adjusted HR: 1.64; 95% CI: 1.17–2.32) was associated with better healing. Dependent activity of daily living (adjusted HR: 0.74; 95% CI: 0.55–1.01) was also potentially a risk factor for slow healing with borderline significance. Nonhealed group of patients incurred higher requirement of revascularization (42.3% vs. 25.3%, p < 0.001), negative pressure wound therapy (40.6% vs. 29.7%, p = 0.03), off‐loading (57.3% vs. 46.8%, p = 0.04) and antibiotic treatment (45.2% vs. 26.6%, p < 0.001), compared to those in the healed group. Conclusion NIU imposes a significant burden on both patients and the healthcare system in Singapore, with low healing rates even after 6 months of tertiary‐level care. Early identification and risk stratification of high‐risk patients may help improve outcomes.https://doi.org/10.1002/hsr2.70332economic burdenneuro‐ischemic ulcerprognostic factorsprospective studytertiary hospitalwound healing
spellingShingle Lingyan Meng
Priya Bishnoi
Zhiwen Joseph Lo
Enming Yong
Tze Tec Chong
David Carmody
Rajesh Babu Dharmaraj
Yi Zhen Ng
Keith Harding
Pei Ho
A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study
Health Science Reports
economic burden
neuro‐ischemic ulcer
prognostic factors
prospective study
tertiary hospital
wound healing
title A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study
title_full A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study
title_fullStr A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study
title_full_unstemmed A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study
title_short A Multi‐Center Prospective Study on the Healing of Neuro‐Ischemic Ulcers in Singapore: A Prospective Cohort Study
title_sort multi center prospective study on the healing of neuro ischemic ulcers in singapore a prospective cohort study
topic economic burden
neuro‐ischemic ulcer
prognostic factors
prospective study
tertiary hospital
wound healing
url https://doi.org/10.1002/hsr2.70332
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