Siew Houy Chua
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Siew Houy Chua has a total of 45 co-authors. Here are the top co-authors by number of shared publications:
- Anna Farazilah Mohd Salleh
Department of Medicine, Hospital Queen Elizabeth, Kementerian Kesihatan Malaysia, 13a, Jalan Penampang, Kota Kinabalu 88200, Sabah, Malaysia
1 shared publication - Asmah Mohd
Department of Medicine, Hospital Tuanku Ja’afar, Kementerian Kesihatan Malaysia, Jalan Rasah, Bukit Rasah, Seremban 70300, Negeri Sembilan, Malaysia
1 shared publication - Asmahan Mohamed Ismail
Department of Medicine, Hospital Raja Perempuan Zainab II, Kementerian Kesihatan Malaysia, Bandar, Kota Bharu 15586, Kelantan, Malaysia
1 shared publication - Azwarina Hanim Ramlan
Department of Medicine, Hospital Sultanah Bahiyah, Kementerian Kesihatan Malaysia, Km 6, Jln Langgar, Alor Setar 05460, Kedah, Malaysia
1 shared publication - Cheng Lay Teh
Rheumatology Unit, Department of Medicine, Sarawak General Hospital, Kuching, Sarawak, Malaysia
1 shared publication - Chong Hwee Cheng
Department of Medicine, Hospital Melaka, Kementerian Kesihatan Malaysia, Jalan Mufti Haji Khalil, Melaka City 75400, Melaka, Malaysia
1 shared publication
Latest Publications
- Open Access
- 29 April 2026
- Published by MDPI AG in Journal of Clinical Medicine
- Vol. 15 (9) , 3387
Ethnic Disparities in Achieving Treatment Targets and Organ Damage Accrual in Systemic Lupus Erythematosus: A Multi-Centre Study from Malaysia
Background/Objectives: Systemic lupus erythematosus (SLE) is a heterogeneous disease with substantial variability in clinical manifestations and outcomes, influenced by ethnic and geographical diversity. Remission is the optimal treatment target, while low lupus disease activity state is an accepted alternative goal. Although sustained remission has been associated with reduced organ damage, the impact of early attainment of treatment targets on subsequent damage accrual in SLE remains incompletely defined. To explore a potential window of opportunity, this study aimed to identify factors associated with achieving remission or low lupus disease activity state within the first year of SLE diagnosis and to examine their associations with organ damage. Methods: This retrospective study was conducted across 22 rheumatology centres in Malaysia and included patients with systemic lupus erythematosus (SLE) who had complete follow-up from diagnosis until attainment of treatment targets. Treatment targets were defined as achieving either early remission or a low disease activity state (LDAS). Given the retrospective nature of the study and the unavailability of complete Physician’s Global Assessment data, the definitions of early remission and LDAS were modified by excluding this component. Accordingly, treatment targets were defined as attainment of a clinical SLE Disease Activity Index (cSLEDAI) score of 0 with oral prednisolone doses of ≤5 mg/day and ≤7.5 mg/day, respectively, within 12 months of SLE onset. Multivariable Cox proportional hazards regression and logistic regression analyses were performed to determine factors associated with early remission and organ damage, respectively. Results: A total of 1599 patients were included, the majority of whom were female (92.5%). The cohort was predominantly Malay (68.7%), followed by Chinese (17.4%), Indigenous groups (10.8%) and Indian (3.0%). Early attainment of treatment targets was achieved in 45.7% of patients, while 54.3% experienced delayed attainment. In the multivariable cox regression model, the Malay and Chinese ethnic group demonstrated a significantly lower likelihood of achieving early remission compared to the Indigenous ethnic group. Patients with longer SLE duration, low C4 levels, presence of haematological and renal manifestations at the initial presentation, were identified as additional adverse factors associated with lower likelihood of early remission. Overall, 16.9% of patients accrued organ damage. Independent factors associated with organ damage included Indian ethnicity [OR 5.75, 95% CI 1.39–23.81, p = 0.02], delayed remission [OR 2.97, 95% CI 1.51–5.83) and absence of baseline hydroxychloroquine therapy [OR 4.13, 95% CI 1.21–14.07; p = 0.020]. Conclusions: Ethnic disparities were observed in the early attainment of the treatment targets, as well as in organ damage accrual within the Malaysian multi-ethnic SLE cohort. The significant association between the delay in achieving the treatment targets and organ damage underscores the importance of adopting an early treat-to-target approach in SLE management.
- 29 April 2026
- Published by MDPI AG in Journal of Clinical Medicine
- Vol. 15 (9) , 3387
Open AccessEthnic Disparities in Achieving Treatment Targets and Organ Damage Accrual in Systemic Lupus Erythematosus: A Multi-Centre Study from Malaysia
Background/Objectives: Systemic lupus erythematosus (SLE) is a heterogeneous disease with substantial variability in clinical manifestations and outcomes, influenced by ethnic and geographical diversity. Remission is the optimal treatment target, while low lupus disease activity state is an accepted alternative goal. Although sustained remission has been associated with reduced organ damage, the impact of early attainment of treatment targets on subsequent damage accrual in SLE remains incompletely defined. To explore a potential window of opportunity, this study aimed to identify factors associated with achieving remission or low lupus disease activity state within the first year of SLE diagnosis and to examine their associations with organ damage. Methods: This retrospective study was conducted across 22 rheumatology centres in Malaysia and included patients with systemic lupus erythematosus (SLE) who had complete follow-up from diagnosis until attainment of treatment targets. Treatment targets were defined as achieving either early remission or a low disease activity state (LDAS). Given the retrospective nature of the study and the unavailability of complete Physician’s Global Assessment data, the definitions of early remission and LDAS were modified by excluding this component. Accordingly, treatment targets were defined as attainment of a clinical SLE Disease Activity Index (cSLEDAI) score of 0 with oral prednisolone doses of ≤5 mg/day and ≤7.5 mg/day, respectively, within 12 months of SLE onset. Multivariable Cox proportional hazards regression and logistic regression analyses were performed to determine factors associated with early remission and organ damage, respectively. Results: A total of 1599 patients were included, the majority of whom were female (92.5%). The cohort was predominantly Malay (68.7%), followed by Chinese (17.4%), Indigenous groups (10.8%) and Indian (3.0%). Early attainment of treatment targets was achieved in 45.7% of patients, while 54.3% experienced delayed attainment. In the multivariable cox regression model, the Malay and Chinese ethnic group demonstrated a significantly lower likelihood of achieving early remission compared to the Indigenous ethnic group. Patients with longer SLE duration, low C4 levels, presence of haematological and renal manifestations at the initial presentation, were identified as additional adverse factors associated with lower likelihood of early remission. Overall, 16.9% of patients accrued organ damage. Independent factors associated with organ damage included Indian ethnicity [OR 5.75, 95% CI 1.39–23.81, p = 0.02], delayed remission [OR 2.97, 95% CI 1.51–5.83) and absence of baseline hydroxychloroquine therapy [OR 4.13, 95% CI 1.21–14.07; p = 0.020]. Conclusions: Ethnic disparities were observed in the early attainment of the treatment targets, as well as in organ damage accrual within the Malaysian multi-ethnic SLE cohort. The significant association between the delay in achieving the treatment targets and organ damage underscores the importance of adopting an early treat-to-target approach in SLE management.
- Open Access
- 25 February 2026
- Published by Academy of Family Physicians of Malaysia in Malaysian Family Physician
- Vol. 21, 8
Neck swelling in a patient with gout – What is the cause?
We describe the case of a 55-year-old man with underlying tophaceous gout who presented with a 6-month history of multiple joint pains and associated constitutional symptoms. Physical examination revealed firm and non-tender swelling measuring 3×4 cm adjacent to the left clavicular head. This swelling did not move with deglutition. Neck imaging showed bilateral heterogeneous soft tissue lesions at the sternoclavicular, first costochondral and acromioclavicular joints. Multiple lytic lesions with cortical destruction involving the upper manubrium and distal ends of both clavicles were seen. Fine needle aspiration of the sternoclavicular joint yielded a small amount of synovial fluid, and its histopathological analysis confirmed the presence of monosodium urate crystal deposition. This case demonstrates a rare manifestation of tophaceous gout at the sternoclavicular joint, underscoring its ability to mimic other pathologies and the consequent challenges in diagnosis.
- 25 February 2026
- Published by Academy of Family Physicians of Malaysia in Malaysian Family Physician
- Vol. 21, 8
Open AccessNeck swelling in a patient with gout – What is the cause?
We describe the case of a 55-year-old man with underlying tophaceous gout who presented with a 6-month history of multiple joint pains and associated constitutional symptoms. Physical examination revealed firm and non-tender swelling measuring 3×4 cm adjacent to the left clavicular head. This swelling did not move with deglutition. Neck imaging showed bilateral heterogeneous soft tissue lesions at the sternoclavicular, first costochondral and acromioclavicular joints. Multiple lytic lesions with cortical destruction involving the upper manubrium and distal ends of both clavicles were seen. Fine needle aspiration of the sternoclavicular joint yielded a small amount of synovial fluid, and its histopathological analysis confirmed the presence of monosodium urate crystal deposition. This case demonstrates a rare manifestation of tophaceous gout at the sternoclavicular joint, underscoring its ability to mimic other pathologies and the consequent challenges in diagnosis.
- Open Access
- 1 May 2023
- Published by SAGE Publications in Indian Journal of Rheumatology
- Vol. 18 (1S) , S54-S59
Patient Support Groups in Rheumatic Diseases: An Evolving and Essential Component of Patient Care
Psychosocial aspects of the patients. They serve to increase disease awareness among the patients, public and health professionals which results in promoting patient empowerment in self-management and improving the overall support network for the patients. Rheumatic diseases are often chronic, progressive autoimmune conditions which commonly cause physical symptoms, functionality disability, psychological, social, and economic impact on the patients’ lives. However, limitations such as lack of access to local support groups especially with the rare diseases, and difficulty in sustaining a group due to funding and leadership issues, do exist. This article focuses on the role of the patient support group in complementing the medical treatment provided by health professionals among patients with rheumatic diseases and ways to enhance the sustainability of patient support group....
- 1 May 2023
- Published by SAGE Publications in Indian Journal of Rheumatology
- Vol. 18 (1S) , S54-S59
Open AccessPatient Support Groups in Rheumatic Diseases: An Evolving and Essential Component of Patient Care
Psychosocial aspects of the patients. They serve to increase disease awareness among the patients, public and health professionals which results in promoting patient empowerment in self-management and improving the overall support network for the patients. Rheumatic diseases are often chronic, progressive autoimmune conditions which commonly cause physical symptoms, functionality disability, psychological, social, and economic impact on the patients’ lives. However, limitations such as lack of access to local support groups especially with the rare diseases, and difficulty in sustaining a group due to funding and leadership issues, do exist. This article focuses on the role of the patient support group in complementing the medical treatment provided by health professionals among patients with rheumatic diseases and ways to enhance the sustainability of patient support group....