Displaying publications 221 - 240 of 362 in total

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  1. Islam T, Bhoo-Pathy N, Su TT, Majid HA, Nahar AM, Ng CG, et al.
    BMJ Open, 2015 Oct 26;5(10):e008643.
    PMID: 26503386 DOI: 10.1136/bmjopen-2015-008643
    INTRODUCTION: Over recent decades, the burden of breast cancer has been increasing at an alarming rate in Asia. Prognostic research findings from Western countries may not readily be adapted to Asia, as the outcome of breast cancer depends on a multitude of factors ranging from genetic, clinical and histological predictors, to lifestyle and social predictors. The primary aim of this study is to determine the impact of lifestyle (eg, nutrition, physical activity), mental and sociocultural condition, on the overall survival and quality of life (QoL) among multiethnic Malaysian women following diagnosis of breast cancer. This study aims to advance the evidence on prognostic factors of breast cancer within the Asian setting. The findings may guide management of patients with breast cancer not only during active treatment but also during the survivorship period.

    METHODS: This hospital-based prospective cohort study will comprise patients with breast cancer (18 years and above), managed in the University Malaya Medical Centre (UMMC). We aim to recruit 1000 cancer survivors over a 6-year period. Data collection will occur at baseline (within 3 months of diagnosis), 6 months, and 1, 3 and 5 years following diagnosis. The primary outcomes are disease-free survival and overall survival, and secondary outcome is QoL. Factors measured are demographic and socioeconomic factors, lifestyle factors (eg, dietary intake, physical activity), anthropometry measurements (eg, height, weight, waist, hip circumference, body fat analysis), psychosocial aspects, and complementary and alternative medicine (CAM) usage.

    ETHICS AND DISSEMINATION: This protocol was approved by the UMMC Ethical Committee in January 2012. All participants are required to provide written informed consent. The findings from our cohort study will be disseminated via scientific publication as well as presentation to stakeholders including the patients, clinicians, the public and policymakers, via appropriate avenues.

    Matched MeSH terms: Breast Neoplasms/therapy*
  2. Love RR, Hossain SM, Hussain MM, Mostafa MG, Laudico AV, Siguan SS, et al.
    Eur J Cancer, 2016 06;60:107-16.
    PMID: 27107325 DOI: 10.1016/j.ejca.2016.03.011
    PURPOSE: In premenopausal women with metastatic hormone receptor-positive breast cancer, hormonal therapy is the first-line therapy. Gonadotropin-releasing hormone analogue + tamoxifen therapies have been found to be more effective. The pattern of recurrence risk over time after primary surgery suggests that peri-operative factors impact recurrence. Secondary analyses of an adjuvant trial suggested that the luteal phase timing of surgical oophorectomy in the menstrual cycle simultaneous with primary breast surgery favourably influenced long-term outcomes.

    METHODS: Two hundred forty-nine premenopausal women with incurable or metastatic hormone receptor-positive breast cancer entered a trial in which they were randomised to historical mid-luteal or mid-follicular phase surgical oophorectomy followed by oral tamoxifen treatment. Kaplan-Meier methods, the log-rank test, and multivariable Cox regression models were used to assess overall and progression-free survival (PFS) in the two randomised groups and by hormone-confirmed menstrual cycle phase.

    RESULTS: Overall survival (OS) and PFS were not demonstrated to be different in the two randomised groups. In a secondary analysis, OS appeared worse in luteal phase surgery patients with progesterone levels <2 ng/ml (anovulatory patients; adjusted hazard ratio 1.46, 95% confidence interval [CI]: 0.89-2.41, p = 0.14) compared with those in luteal phase with progesterone level of 2 ng/ml or higher. Median OS was 2 years (95% CI: 1.7-2.3) and OS at 4 years was 26%.

    CONCLUSIONS: The history-based timing of surgical oophorectomy in the menstrual cycle did not influence outcomes in this trial of metastatic patients. ClinicalTrials.gov number NCT00293540.

    Study site: Bangladesh, The Philippines, China, Nigeria,
    Indonesia, Malaysia, Taiwan, Morocco, and Vietnam
    Matched MeSH terms: Breast Neoplasms/therapy*
  3. Azman M, Mohd Yunus MR
    Indian J Cancer, 2015 Apr-Jun;52(2):201-2.
    PMID: 26853404 DOI: 10.4103/0019-509X.175817
    Matched MeSH terms: Head and Neck Neoplasms/therapy
  4. Magaji BA, Moy FM, Roslani AC, Law CW, Raduan F, Sagap I
    Asian Pac J Cancer Prev, 2015;16(18):8101-5.
    PMID: 26745045
    BACKGROUND: This study examined the psychometric properties of the Bahasa Malaysia (BM) version of the European Organization for Research and Treatment of Cancer (EORTC) Colorectal Cancer-specific Quality Of Life Questionnaire (QLQ-CR29).

    MATERIALS AND METHODS: We studied 93 patients recruited from University Malaya and Universiti Kebangsaan Medical Centers, Kuala Lumpur, Malaysia using a self-administered method. Tools included QLQ-C30, QLQ-CR29 and Karnofsky Performance Scales (KPS). Statistical analyses included Cronbach's alpha, test-retest correlations, multi-traits scaling and known-groups comparisons. A p value ≤ 0.05 was considered significant.

    RESULTS: The internal consistency coefficients for body image, urinary frequency, blood and mucus and stool frequency scales were acceptable (Cronbach's alpha α ≥ 0.65). However, the coefficients were low for the blood and mucus and stool frequency scales in patients with a stoma bag (α = 0.46). Test-retest correlation coefficients were moderate to high (range: r = 0.51 to 1.00) for most of the scales except anxiety, urinary frequency, buttock pain, hair loss, stoma care related problems, and dyspareunia (r ≤ 0.49). Convergent and discriminant validities were achieved in all scales. Patients with a stoma reported significantly higher symptoms of blood and mucus in the stool, flatulence, faecal incontinence, sore skin, and embarrassment due to the frequent need to change the stoma bag (p < 0.05) compared to patients without stoma. None of the scales distinguished between patients based on the KPS scores. There were no overlaps between scales in the QLQ-C30 and QLQ-CR29 (r < 0.40).

    CONCLUSIONS: the BM version of the QLQ-CR29 indicated acceptable psychometric properties in most of the scales similar to original validation study. This questionnaire could be used to complement the QLQ-C30 in assessing HRQOL among BM speaking population with colorectal cancer.

    Matched MeSH terms: Colorectal Neoplasms/therapy
  5. Jeremic B, Fidarova E, Sharma V, Faheem M, Ameira AA, Nasr Ben Ammar C, et al.
    Radiother Oncol, 2015 Jul;116(1):21-6.
    PMID: 26163093 DOI: 10.1016/j.radonc.2015.06.017
    To optimize palliation in incurable locally advanced non-small cell lung cancer (NSCLC), the International Atomic Energy Agency conducted a prospective randomized study (NCT00864331) comparing protracted palliative radiotherapy (RT) course with chemotherapy (CHT) followed by short-course palliative RT.
    Matched MeSH terms: Lung Neoplasms/therapy*
  6. Rajagopal R, Ariffin H, Krishnan S, Abdullah WA, Lin HP
    J Pediatr Hematol Oncol, 2015 Jul;37(5):391-5.
    PMID: 25929614 DOI: 10.1097/MPH.0000000000000344
    Review of the management of 6 young girls with vaginal yolk sac tumor over 25 years showed that the α-fetoprotein levels normalized in 5/6 within 4 cycles of primary cisplatin, bleomycin, etoposide (PEB)/carboplatin, etoposide, bleomycin (JEB)/cisplatin, vinblastine, bleomycin (PVB) chemotherapy. Radioimaging revealed residual tissue but viable tumor was found in only 1 of 2 biopsied. Resection/biopsy is necessary to avoid giving additional primary chemotherapy or to identify patients who need different treatment. If markers do not decay appropriately, PEB/JEB/PVB chemotherapy should not be continued. Taxol-containing salvage chemotherapy regimens, adjuvant modern radiotherapeutic treatment, and fertility-saving curative surgery should then be considered. Despite having mostly advanced disease, 5/6 patients were cured, 2 with chemotherapy alone.
    Matched MeSH terms: Vaginal Neoplasms/therapy*
  7. Knight A, Hwa YS, Hashim H
    Asian Pac J Cancer Prev, 2015;16(8):3125-30.
    PMID: 25921108
    BACKGROUND: Breast cancer is a common cancer affecting women in Malaysia and the use of complementary/ alternative medicine (CAM) has been associated with delays in getting treatment. The aim of the study was to explore the use of CAM and the influencing factors in the Northern region of Peninsular Malaysia.

    MATERIALS AND METHODS: This was a cross-sectional descriptive study on a convenience sample of 100 Malaysian breast cancer survivors.

    FINDINGS: The reported use of CAM among the breast cancer survivors was lower than in other studies but the types of CAM used had a similar pattern with nutrition supplements/vitamins being the most common. The factors that positively influenced the use of complimentary/traditional therapy were income and getting information from television or radio. Survivors with access to internet/blogs appear to have lower odds of using complimentary/traditional therapy compared to the respondents who reported no such access.

    CONCLUSIONS: Information transmitted via television and radio appears to have a positive influence on CAM use by breast cancer patients compared to other information sources and it is important to ensure that such information is accurate and impartial.

    Matched MeSH terms: Breast Neoplasms/therapy*
  8. Sruamsiri R, Ross-Degnan D, Lu CY, Chaiyakunapruk N, Wagner AK
    PLoS One, 2015;10(3):e0119945.
    PMID: 25798948 DOI: 10.1371/journal.pone.0119945
    BACKGROUND: Increasing access to clinically beneficial targeted cancer medicines is a challenge in every country due to their high cost. We describe the interplay of innovative policies and programs involving multiple stakeholders to facilitate access to these medicines in Thailand, as well as the utilization of selected targeted therapies over time.

    METHODS: We selected two medicines on the 2013 Thai national list of essential medicines (NLEM) [letrozole and imatinib] and three unlisted medicines for the same indications [trastuzumab, nilotinib and dasatinib]. We created timelines of access policies and programs for these products based on scientific and grey literature. Using IMS Health sales data, we described the trajectories of sales volumes of the study medicines between January 2001 and December 2012. We compared estimated average numbers of patients treated before and after the implementation of policies and programs for each product.

    RESULTS: Different stakeholders implemented multiple interventions to increase access to the study medicines for different patient populations. During 2007-2009, the Thai Government created a special NLEM category with different coverage requirements for payers and issued compulsory licenses; payers negotiated prices with manufacturers and engaged in pooled procurement; pharmaceutical companies expanded patient assistance programs and lowered prices in different ways. Compared to before the interventions, estimated numbers of patients treated with each medicine increased significantly afterwards: for letrozole from 645 (95% CI 366-923) to 3683 (95% CI 2,748-4,618); for imatinib from 103 (95% CI 72-174) to 350 (95% CI 307-398); and for trastuzumab from 68 (95% CI 45-118) to 412 (95% CI 344-563).

    CONCLUSIONS: Government, payers, and manufacturers implemented multi-pronged approaches to facilitate access to targeted cancer therapies for the Thai population, which differed by medicine. Routine monitoring is needed to assess clinical and economic impacts of these strategies in the health system.

    Matched MeSH terms: Neoplasms/therapy*
  9. Ng T, Toh MR, Cheung YT, Chan A
    Support Care Cancer, 2015 Nov;23(11):3193-200.
    PMID: 25791392 DOI: 10.1007/s00520-015-2700-2
    PURPOSE: The aim of this study is to evaluate the perspectives of Asian oncology practitioners on the physical and psychosocial issues experienced by breast cancer survivors (BCS), current survivorship care practices, and the barriers to follow-up care.

    METHODS: This was a cross-sectional survey study. Oncology practitioners were recruited from a major cancer center in Singapore and through two regional cancer meetings that took place in Singapore and Malaysia in 2013.

    RESULTS: A total of 126 oncology practitioners from various Southeast Asian countries, mostly nurses (58.7 %) and physicians (37.3 %), were recruited. The majority of the respondents agreed that fatigue (78.4 %) and anxiety (69.1 %) were the most common physical and psychosocial problems experienced by BCS. Monitoring for physical and treatment-related adverse effects (80.7 %) and reviewing patients' noncancer medical history (65.3 %) were the most practiced aspects of follow-up care. Compared with the other practitioners, the physicians were more likely to communicate with other healthcare professionals (adjusted OR = 4.24, 95 % CI 1.54 to 11.72; p = 0.005). Most of the respondents also agreed that patient-specific barriers were the main impediments to follow-up care.

    CONCLUSION: This study provides insights into the various aspects of breast cancer survivorship care from the perspectives of oncology practitioners and shows that survivorship care is relatively inadequate in Asia. There is a need for new survivorship care models to meet the needs of Asian BCS and to complement the unique healthcare systems of Asia.

    Matched MeSH terms: Breast Neoplasms/therapy
  10. Biswal BM, Madhavan M, Anas SR
    Postgrad Med J, 2000 Nov;76(901):719-20, 728-9.
    PMID: 11060156
    Matched MeSH terms: Testicular Neoplasms/therapy
  11. Ong TA, Yip CH
    Asian J Surg, 2003 Jul;26(3):169-75.
    PMID: 12925293
    OBJECTIVE: To study the impact of various clinicopathological factors on short-term survival in a cohort of breast cancer patients treated at the University of Malaya Medical Centre (UMMC).
    METHODS: All cases of breast cancer treated at UMMC from January 1999 to June 2001, except for stage IV disease, were included in the study. Survival analysis was carried out using Kaplan-Meier for univariate analysis and Cox regression for multivariate analysis. The log-rank test was used to test the significance of differences between the different survival curves.
    RESULTS: A total of 385 patients were included. The mean patient age at presentation was 50.3 years (SD, 11.4); 198 (51.4%) patients had lymph node-positive disease, and 187 (48.6%) had node-negative disease. The mean follow-up period was 18.7 months (SD, 8.8). The Malay ethnic group, tumours of larger size, node-positive disease, more than five positive lymph nodes, oestrogen receptor (ER) negativity and the presence of lymphovascular invasion were significant prognostic factors for shorter recurrence-free survival (RFS) in the univariate analysis. In the multivariate analysis, ER negativity was the only independent adverse prognostic factor for RFS. For overall survival (OS), tumours of larger size, node-positive disease, more than five positive lymph nodes, ER negativity and high grade tumours were associated with significantly shorter OS. However, more than five positive lymph nodes was the only independent prognostic factor for shorter OS in the multivariate analysis. Further multivariate analysis of the patients with node-positive disease showed that the Malay ethnic group, ER negativity and more than five positive lymph nodes were independent prognostic factors for shorter RFS. On the other hand, ER negativity and more than five positive lymph nodes were independent negative prognostic factors for OS in this subgroup of patients.
    CONCLUSION: The evaluation of various prognostic factors would provide useful information on disease progression in local patients, especially for the planning of adjuvant therapies and follow-up protocols. Differences in the pattern of breast cancer among the different ethnic groups in Malaysia warrant further studies.
    Matched MeSH terms: Breast Neoplasms/therapy
  12. Koh KB
    Aust N Z J Surg, 1996 Dec;66(12):851-3.
    PMID: 8996073
    We report five patients who presented with seminoma of an undescended testis to highlight the importance of dealing with adult cryptorchidism. On the basis of the literature review and our experience, we advocate orchidectomy for post-pubertal cryptorchid patients of any age because follow-up may be difficult, and treatment for the tumour may be unsuccessful.
    Matched MeSH terms: Testicular Neoplasms/therapy
  13. Kamariah K, Satgunasingam N, Nasri NM, Ng KY
    Med J Malaysia, 1993 Mar;48(1):40-5.
    PMID: 7688063
    Eighty-nine patients who had hydatidiform moles evacuated at the General Hospital, Kuala Lumpur, were followed with serum beta hCG determinations from October 1988 to June 1991. A regression curve for serum beta hCG, as measured by RIA, was derived from the results of 47 of the patients who demonstrated spontaneous regression of serum beta hCG titres. All 47 patients had normal serum titres at 135 days after evacuation. The mean time taken to reach normal level was 82.6 days, while the range was 39 to 135 days (5 to 19 weeks).
    Matched MeSH terms: Uterine Neoplasms/therapy
  14. Ram SP, Malik AS
    Med J Malaysia, 1994 Mar;49(1):96-9.
    PMID: 8058000
    Three children with cardiac tumors are described: a 12-year-old female child who had left atrial myxoma, and two males having rhabdomyoma of the right ventricle associated with tuberous sclerosis. The child with left atrial myxoma was symptomatic and the tumour was subsequently excised. The other two children with rhabdomyoma were managed conservatively.
    Matched MeSH terms: Heart Neoplasms/therapy
  15. Sothy K, Mafauzy M, Mohamad WB, Mustaffa BE
    Med J Malaysia, 1991 Sep;46(3):212-7.
    PMID: 1839914
    The clinical, biochemical and pathological features of 31 patients with thyroid carcinoma managed at Hospital Universiti Sains Málaysia, Kubang Kerian from 1985 to 1989 were analyzed. There were 25 females and 6 males. The types of carcinoma were: papillary-17 cases; follicular-10 cases; medullary-2 cases and anaplastic-2 cases. For papillary carcinoma the mean age of the patients was 52.9 years. For follicular carcinoma the mean age was 48.3 years, for medullary carcinoma, 48.5 years and for anaplastic, 74.5 years. All patients had pre-existing goitre except for 2 and most presented with advanced disease. The mean duration of symptoms for papillary carcinoma was 3.7 years, follicular carcinoma 1.6 years, medullary carcinoma 13.5 years and anaplastic carcinoma 6 months. 12 patients presented with goitre of increasing size; 9 had compression symptoms; 4 presented with cervical lymph node enlargement and 6 presented with bony pains of whom 2 had paraplegia. None of the patients were ever thyrotoxic or hypothyroid. Treatment in general was unsatisfactory because of patients' non-acceptance of surgery and/or radioactive iodine.
    Matched MeSH terms: Thyroid Neoplasms/therapy*
  16. Karim SM, Ratnam SS, Hutabarat H, Hanafiah J, Simanjuntak P, Teoh SK, et al.
    Ann Acad Med Singap, 1982 Oct;11(4):508-12.
    PMID: 7165272
    2a 2b dihomo 15(S) 15 methyl PGF2 alpha methyl ester (dihomo 15 me PGF2 alpha) in intramuscular doses of 0.5 mg 8 hourly was used in 631 patients with abnormal intrauterine pregnancy comprising 282 cases of intrauterine fetal death, 233 cases of missed abortion, 34 and 82 cases respectively anencephalic and molar pregnancies. The study was carried out as a collaborative project between the University Departments of Obstetrics and Gynaecology in Singapore (Singapore), Medan (Indonesia) and Kuala Lumpur (Malaysia) during the period June 1974 and November 1979. Six hundred patients (95.1%) aborted or delivered in a mean time of 11.3 hours (S.D. +/- 7.0) with an average of 1.8 injections of the prostaglandin analogue per patient. Side effects included vomiting (23.6%; mean 0.45 episodes per patient), diarrhoea (44.4%; mean 1.00 episode per patient), cold and shivering (11.9%) and pyrexia (12.4%). One patient sustained a cervical laceration which did not require repair. There were no complications.
    Matched MeSH terms: Uterine Neoplasms/therapy*
  17. Chong ZX, Yeap SK, Ho WY
    Arch Biochem Biophys, 2020 11 30;695:108583.
    PMID: 32956633 DOI: 10.1016/j.abb.2020.108583
    miRNAs are short non-coding RNA molecules that regulate the expression of mRNA post-transcriptionally. MiRNAs that are secreted into the circulation, also termed circulating miRNAs, have been studied extensively for their roles in diagnosis, treatment and prognosis of human breast cancer. Breast cancer is the most prevalent female cancer and is associated with key cancer hallmarks including sustained proliferation, evasion of apoptosis, increased invasion, enhanced metastases, initation of inflammation, induction of angiogenesis, metabolic derangement and immune dysregulation. This review aimed to explore the relationships between circulating miRNAs and different breast cancer hallmarks. Besides, the advantages, challenges and clinical application of using circulating miRNAs in human breast cancer management were also discussed.
    Matched MeSH terms: Breast Neoplasms/therapy
  18. Mohamed Amin Z, Che Ani MA, Tan SW, Yeap SK, Alitheen NB, Syed Najmuddin SUF, et al.
    Sci Rep, 2019 Sep 30;9(1):13999.
    PMID: 31570732 DOI: 10.1038/s41598-019-50222-z
    The Newcastle disease virus (NDV) strain AF2240 is an avian avulavirus that has been demonstrated to possess oncolytic activity against cancer cells. However, to illicit a greater anti-cancer immune response, it is believed that the incorporation of immunostimulatory genes such as IL12 into a recombinant NDV backbone will enhance its oncolytic effect. In this study, a newly developed recombinant NDV that expresses IL12 (rAF-IL12) was tested for its safety, stability and cytotoxicity. The stability of rAF-IL12 was maintained when passaged in specific pathogen free (SPF) chicken eggs from passage 1 to passage 10; with an HA titer of 29. Based on the results obtained from the MTT cytotoxic assay, rAF-IL12 was determined to be safe as it only induced cytotoxic effects against normal chicken cell lines and human breast cancer cells while sparing normal cells. Significant tumor growth inhibition (52%) was observed in the rAF-IL12-treated mice. The in vivo safety profile of rAF-IL12 was confirmed through histological observation and viral load titer assay. The concentration and presence of the expressed IL12 was quantified and verified via ELISA assay. In summary, rAF-IL12 was proven to be safe, selectively replicating in chicken and cancer cells and was able to maintain its stability throughout several passages; thus enhancing its potential as an anti-breast cancer vaccine.
    Matched MeSH terms: Breast Neoplasms/therapy*
  19. Bhoo-Pathy N, Balakrishnan N, See MH, Taib NA, Yip CH
    World J Surg, 2016 12;40(12):2913-2921.
    PMID: 27456497 DOI: 10.1007/s00268-016-3658-z
    BACKGROUND: Factors associated with surgery, adjuvant radiotherapy, and chemotherapy and whether there were missed opportunities for treatment in elderly patients were determined in an Asian setting.

    METHODS: All 5616 patients, diagnosed with breast cancer in University Malaya Medical Centre from 1999 to 2013 were included. In 945 elderly patients (aged 65 years and above), multivariable logistic regression was performed to identify factors associated with treatment, following adjustment for age, ethnicity, tumor, and other treatment characteristics. The impact of lack of treatment on survival of the elderly was assessed while accounting for comorbidities.

    RESULTS: One in five elderly patients had comorbidities. Compared to younger patients, the elderly had more favorable tumor characteristics, and received less loco-regional treatment and chemotherapy. Within stage I-IIIa elderly breast cancer patients, 10 % did not receive any surgery. These patients were older, more likely to be Malays, have comorbidities, and bigger tumors. In elderlies with indications for adjuvant radiotherapy, no irradiation (30 %) was associated with increasing age, comorbidity, and the absence of systemic therapy. Hormone therapy was optimal, but only 35 % of elderly women with ER negative tumors received chemotherapy. Compared to elderly women who received adequate treatment, those not receiving surgery (adjusted hazard ratio: 2.30, 95 %CI: 1.10-4.79), or radiotherapy (adjusted hazard ratio: 1.56, 95 %CI: 1.10-2.19), were associated with higher mortality. Less than 25 % of the survival discrepancy between elderly women receiving loco-regional treatment and no treatment were attributed to excess comorbidities in untreated patients.

    CONCLUSION: While the presence of comorbidities significantly influenced loco-regional treatment decisions in the elderly, it was only able to explain the lower survival rates in untreated patients up to a certain extent, suggesting missed opportunities for treatment.

    Matched MeSH terms: Breast Neoplasms/therapy*
  20. Taib NA, Yip CH, Low WY
    World J Surg, 2014 Jul;38(7):1676-84.
    PMID: 24280975 DOI: 10.1007/s00268-013-2339-4
    Advanced breast cancer presentation remains a large obstacle in lowering mortality rates in low- and middle-resource countries. This study aims to explore the reasons why women present with breast cancer at an advanced stage.
    Matched MeSH terms: Breast Neoplasms/therapy
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