Displaying publications 141 - 160 of 362 in total

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  1. Ghafoor M, Schuyten R, Bener A
    Med J Malaysia, 2003 Dec;58(5):712-6.
    PMID: 15190657
    To evaluate the magnitude of prostate cancer in the United Arab Emirates (UAE).
    Matched MeSH terms: Prostatic Neoplasms/therapy
  2. Rothwell RI
    Clin Oncol, 1979 Dec;5(4):353-8.
    PMID: 519920
    Matched MeSH terms: Nasopharyngeal Neoplasms/therapy
  3. Silva JF, Sin TW
    Med J Malaysia, 1978 Mar;32(3):225-31.
    PMID: 277747
    Matched MeSH terms: Bone Neoplasms/therapy
  4. Wong HS, Subramaniam S, Alias Z, Taib NA, Ho GF, Ng CH, et al.
    Medicine (Baltimore), 2015 Feb;94(8):e593.
    PMID: 25715267 DOI: 10.1097/MD.0000000000000593
    Web-based prognostication tools may provide a simple and economically feasible option to aid prognostication and selection of chemotherapy in early breast cancers. We validated PREDICT, a free online breast cancer prognostication and treatment benefit tool, in a resource-limited setting. All 1480 patients who underwent complete surgical treatment for stages I to III breast cancer from 1998 to 2006 were identified from the prospective breast cancer registry of University Malaya Medical Centre, Kuala Lumpur, Malaysia. Calibration was evaluated by comparing the model-predicted overall survival (OS) with patients' actual OS. Model discrimination was tested using receiver-operating characteristic (ROC) analysis. Median age at diagnosis was 50 years. The median tumor size at presentation was 3 cm and 54% of patients had lymph node-negative disease. About 55% of women had estrogen receptor-positive breast cancer. Overall, the model-predicted 5 and 10-year OS was 86.3% and 77.5%, respectively, whereas the observed 5 and 10-year OS was 87.6% (difference: -1.3%) and 74.2% (difference: 3.3%), respectively; P values for goodness-of-fit test were 0.18 and 0.12, respectively. The program was accurate in most subgroups of patients, but significantly overestimated survival in patients aged <40 years, and in those receiving neoadjuvant chemotherapy. PREDICT performed well in terms of discrimination; areas under ROC curve were 0.78 (95% confidence interval [CI]: 0.74-0.81) and 0.73 (95% CI: 0.68-0.78) for 5 and 10-year OS, respectively. Based on its accurate performance in this study, PREDICT may be clinically useful in prognosticating women with breast cancer and personalizing breast cancer treatment in resource-limited settings.
    Matched MeSH terms: Breast Neoplasms/therapy
  5. Abdullah NN, Idris IB, Shamsuddin K, Abdullah NMA
    Support Care Cancer, 2020 Apr;28(4):1891-1899.
    PMID: 31359181 DOI: 10.1007/s00520-019-05007-5
    PURPOSE: Gastrointestinal (GI) cancer has emerged as a major health problem. Cancer patients receive informal care from their families beyond formal care. There has been little evidence showing how the health-related quality of life (HRQOL) of the caregivers differs from that of the GI patients in Malaysia. A cross-sectional study was conducted in three referral hospitals in Malaysia. The objectives of this study were to determine the HRQOL of GI cancer patients and their family caregivers, and assess whether there is any significant relationship between the demographic factors, and the physical component summary (PCS) and mental component summary (MCS) scores for patients and caregivers.

    METHODS: A total of 323 dyads of GI cancer patients and their caregivers completed the Medical Outcomes Study 12-item Short Form (MOS SF-12) questionnaire to measure their HRQOL during face-to-face interviews. The analyses were performed using SF-12 scoring software to compute PCS and MCS scores (HRQOL parameters). The independent t test, one-way ANOVA, and the Pearson correlation test were conducted to determine the demographic factors related to the HRQOL of the dyads.

    RESULTS: The caregivers had higher scores in all domains for the SF-12 than the patients. There were significant differences found in the MCS scores of the patients according to ethnicity, origin of cancer, duration of cancer, and surgery. None of these factors had a significant relationship with the caregivers' HRQOL.

    CONCLUSION: Caregivers had better HRQOL than cancer patients. Early intervention for cancer patients in the form of counselling and personalised pain management may enhance the HRQOL of patients.

    Matched MeSH terms: Gastrointestinal Neoplasms/therapy
  6. Yip CH, Buccimazza I, Hartman M, Deo SV, Cheung PS
    World J Surg, 2015 Mar;39(3):686-92.
    PMID: 25398564 DOI: 10.1007/s00268-014-2859-6
    Breast cancer is the most common cancer in women world-wide. Incidence rates in low- and middle-income countries (LMICs) are lower than in high income countries; however, the rates are increasing very rapidly in LMICs due to social changes that increase the risk of breast cancer. Breast cancer mortality rates in LMICs remain high due to late presentation and inadequate access to optimal care. Breast Surgery International brought together a group of breast surgeons from different parts of the world to address strategies for improving outcomes in breast cancer for LMICs at a symposium during International Surgical Week in Helsinki, Finland in August 2013. A key strategy for early detection is public health education and breast awareness. Sociocultural barriers to early detection and treatment need to be addressed. Optimal management of breast cancer requires a multidisciplinary team. Surgical treatment is often the only modality of treatment available in low-resource settings where modified radical mastectomy is the most common operation performed. Chemotherapy and radiotherapy require more resources. Endocrine therapy is available but requires accurate assessment of estrogen receptors status. Targeted therapy with trastuzumab is generally unavailable due to cost. The Breast Health Global Initiative guidelines for the early detection and appropriate treatment of breast cancer in LMICs have been specifically designed to improve breast cancer outcomes in these regions. Closing the cancer divide between rich and poor countries is a moral imperative and there is an urgent need to prevent breast cancer deaths with early detection and optimal access to treatment.
    Matched MeSH terms: Breast Neoplasms/therapy*
  7. Hoo WPY, Siak PY, In LLA
    Curr Top Med Chem, 2019;19(23):2158-2175.
    PMID: 31483231 DOI: 10.2174/1568026619666190904163524
    The occurrence of somatic substitution mutations of the KRAS proto-oncogene is highly prevalent in certain cancer types, which often leads to constant activation of proliferative pathways and subsequent neoplastic transformation. It is often seen as a gateway mutation in carcinogenesis and has been commonly deemed as a predictive biomarker for poor prognosis and relapse when conventional chemotherapeutics are employed. Additionally, its mutational status also renders EGFR targeted therapies ineffective owing to its downstream location. Efforts to discover new approaches targeting this menacing culprit have been ongoing for years without much success, and with incidences of KRAS positive cancer patients being on the rise, researchers are now turning towards immunotherapies as the way forward. In this scoping review, recent immunotherapeutic developments and advances in both preclinical and clinical studies targeting K-ras directly or indirectly via its downstream signal transduction machinery will be discussed. Additionally, some of the challenges and limitations of various K-ras targeting immunotherapeutic approaches such as vaccines, adoptive T cell therapies, and checkpoint inhibitors against KRAS positive cancers will be deliberated.
    Matched MeSH terms: Neoplasms/therapy*
  8. Gatellier L, Shankar A, Dewi LKM, Hussain QM, Dendup Wangdi T, Sukumaran DB, et al.
    Asian Pac J Cancer Prev, 2021 Mar 01;22(3):681-690.
    PMID: 33773529 DOI: 10.31557/APJCP.2021.22.3.681
    OBJECTIVE: The COVID-19 pandemic has dramatically affected healthcare services around Asia. The Asian National Cancer Centres Alliance and the Asia-Pacific Organisation for Cancer Prevention collaborated to assess the mid- and long- term impact of COVID-19 to cancer care in Asia.

    METHODS: The two entities organised a combined symposium and post-meeting interactions among representatives of major cancer centres from seventeen Asian countries to outlining major challenges and countermeasures.

    RESULTS: Participating stakeholders distilled five big questions. 1) "Will there be an explosion of late-stage cancers after the pandemic?" To address and recover from perceived delayed prevention, screening, treatment and care challenges, collaboration of key stakeholders in the region and alignment in cancer care management, policy intervention and cancer registry initiatives would be of essential value. 2) "Operations and Finance" The pandemic has resulted in significant material and financial casualties. Flagged acute challenges (shortages of supplies, imposition of lockdown) as well as longer-standing reduction of financial revenue, manpower, international collaboration, and training should also be addressed. 3) "Will telemedicine and technological innovations revolutionize cancer care?" Deploying and implementing telemedicine such as teleconsultation and virtual tumour boards were considered invaluable. These innovations could become a new regular practice, leading to expansion of tele-collaboration through collaboration of institutions in the region. 4) "Will virtual conferences continue after the pandemic?" Virtual conferences during the pandemic have opened new doors for knowledge sharing, especially for representatives of low- and middle-income countries in the region, while saving time and costs of travel. 5) "How do we prepare for the next pandemic or international emergency?" Roadmaps for action to improve access to appropriate patient care and research were identified and scrutinised.

    CONCLUSION: Through addressing these five big questions, focused collaboration among members and with international organisations such as City Cancer Challenge will allow enhanced preparedness for future international emergencies.
    .

    Matched MeSH terms: Neoplasms/therapy
  9. Fahmy O, Khairul-Asri MG, Schubert T, Renninger M, Malek R, Kübler H, et al.
    Urol Oncol, 2018 02;36(2):43-53.
    PMID: 29102254 DOI: 10.1016/j.urolonc.2017.10.002
    OBJECTIVE: This study aimed to comprehensively analyze the oncological long-term outcomes of trimodal therapy (TMT) and radical cystectomy (RC) for the treatment of muscle-invasive bladder cancer (BC) with or without neoadjuvant chemotherapy (NAC).

    PATIENTS AND METHODS: A systematic search was conducted according to the PRISMA guidelines for studies reporting on outcomes after TMT and RC. A total of 57 studies including 30,293 patients were included. The 10-year overall survival (OS), disease-specific survival (DSS), and recurrence-free survival (RFS) rates for TMT and RC were assessed.

    RESULTS: The mean 10-year OS was 30.9% for TMT and 35.1% for RC (P = 0.32). The mean 10-year DSS was 50.9% for TMT and 57.8% for RC (P = 0.26). NAC was administered before therapy to 453 (13.3%) of 3,402 patients treated with TMT and 812 (3.0%) of 27,867 patients treated with RC (P<0.001). Complete response (CR) was achieved in 1,545 (75.3%) of 2,051 evaluable patients treated with TMT. A 5-year OS, DSS, and RFS after CR were 66.9%, 78.3%, and 52.5%, respectively. Downstaging after transurethral bladder tumor resection or NAC to stage ≤pT1 at RC was reported in 2,416 (29.1%) of 8,311 patients. NAC significantly increased the rate of pT0 from 20.2% to 34.3% (P = 0.007) in cT2 and from 3.8% to 23.9% (P<0.001) in cT3-4. A 5-year OS, DSS, and RFS in downstaged patients (≤pT1) at RC were 75.7%, 88.3%, and 75.8%, respectively.

    CONCLUSION: In this analysis, the survival outcomes of patients after TMT and RC for MIBC were comparable. Patients who experienced downstaging after NAC and RC exhibited improved survival compared to patients treated with RC only. Best survival outcomes after TMT are associated with CR to this approach.

    Matched MeSH terms: Urinary Bladder Neoplasms/therapy*
  10. Horton S, Camacho Rodriguez R, Anderson BO, Aung S, Awuah B, Delgado Pebé L, et al.
    Cancer, 2020 05 15;126 Suppl 10:2353-2364.
    PMID: 32348567 DOI: 10.1002/cncr.32871
    The adoption of the goal of universal health coverage and the growing burden of cancer in low- and middle-income countries makes it important to consider how to provide cancer care. Specific interventions can strengthen health systems while providing cancer care within a resource-stratified perspective (similar to the World Health Organization-tiered approach). Four specific topics are discussed: essential medicines/essential diagnostics lists; national cancer plans; provision of affordable essential public services (either at no cost to users or through national health insurance); and finally, how a nascent breast cancer program can build on existing programs. A case study of Zambia (a country with a core level of resources for cancer care, using the Breast Health Global Initiative typology) shows how a breast cancer program was built on a cervical cancer program, which in turn had evolved from the HIV/AIDS program. A case study of Brazil (which has enhanced resources for cancer care) describes how access to breast cancer care evolved as universal health coverage expanded. A case study of Uruguay shows how breast cancer outcomes improved as the country shifted from a largely private system to a single-payer national health insurance system in the transition to becoming a country with maximal resources for cancer care. The final case study describes an exciting initiative, the City Cancer Challenge, and how that may lead to improved cancer services.
    Matched MeSH terms: Breast Neoplasms/therapy*
  11. Singh VA, Puri A
    J Orthop Surg (Hong Kong), 2020 12 18;28(3):2309499020979750.
    PMID: 33331233 DOI: 10.1177/2309499020979750
    Giant cell tumour of the bone (GCTB) has been classically treated surgically. With the advent of denosumab, there is potential to use it as a targeted therapy to downstage the tumour and control its progression. Like all new therapies, the dosage, duration, and long-term effects of treatment can only be determined over the time through numerous trials and errors. The current recommendation of use of the monoclonal antibody is 3-4 months of neoadjuvant denosumab in patients with advanced GCTB for cases who were not candidates for primary curettage initially, and prolonged use for surgically unsalvageable GCTB. The use of Denosumab in the adjuvant setting to prevent recurrence is not established.
    Matched MeSH terms: Bone Neoplasms/therapy*
  12. Wan Mohd Shukri WN, Bakhtiar H, Islam S, Bidin N, Baba S, Hamdan S, et al.
    Biomed Environ Sci, 2021 Feb 20;34(2):119-123.
    PMID: 33685570 DOI: 10.3967/bes2021.017
    Matched MeSH terms: Breast Neoplasms/therapy*
  13. Ch'ng ACW, Chan SK, Ignatius J, Lim TS
    Eur J Immunol, 2019 08;49(8):1186-1199.
    PMID: 30919413 DOI: 10.1002/eji.201747328
    The application of human TCR in cancer immunotherapy has gained momentum with developments in tumor killing strategies using endogenous adaptive immune responses. The successful coverage of a diverse TCR repertoire is mainly attributed to the primer design of the human TCR V genes. Here, we present a refined primer design strategy of the human TCR V gene by clustering V gene sequence homolog for degenerate primer design based on the data from IMGT. The primers designed were analyzed and the PCR efficiency of each primer set was optimized. A total of 112 alpha and 160 beta sequences were aligned and clustered using a phylogram yielding 32 and 27 V gene primers for the alpha and beta family. The new primer set was able to provide 93.75% and 95.63% coverage for the alpha and beta family, respectively. A semi-qualitative approach using the designed primer set was able to provide a relative view of the TCR V gene diversity in different populations. Taken together, the new primers provide a more comprehensive coverage of the TCR gene diversity for improved TCR library generation and TCR V gene analysis studies.
    Matched MeSH terms: Neoplasms/therapy*
  14. Palagyi A, Balane C, Shanthosh J, Jun M, Bhoo-Pathy N, Gadsden T, et al.
    Int J Cancer, 2021 02 15;148(4):895-904.
    PMID: 32875569 DOI: 10.1002/ijc.33279
    In this systematic review and meta-analyses, we sought to determine sex-disparities in treatment abandonment in children with cancer in low- and middle-income countries (LMICs) and identify the characteristics of children and their families most disadvantaged by such abandonment. Sex-disaggregated data on treatment abandonment were collated from the available literature and a random-effects meta-analysis was conducted to compare the rates in girls with those in boys. Subgroup analyses were conducted in which studies were stratified by design, cancer type and the Gender Inequality Index of the country of study. Eighteen studies were included in the systematic review and of these studies, 16 qualified for the meta-analysis, representing 10 754 children. The pooled rate of treatment abandonment overall was 30%. We observed no difference in the proportion of treatment abandonment in girls relative to estimates observed in boys (rate ratio [RR] 0.95, 95% CI: 0.79-1.15; P = .61). There was significant heterogeneity across the included studies and in the pooled estimate of RR for girls vs boys (both I2 > 98%). Subgroup analyses did not reveal any effect on abandonment risk. Risk factors for abandonment observed fell into three main categories: socio-demographic; geographic; and travel-related. In conclusion, a high rate of treatment abandonment (30%) was observed overall for children with cancer in included studies in LMICs, although this was variable and context specific. No evidence of gender bias in childhood cancer treatment abandonment rates across LMICs was found. Given that the risk factors for abandonment are context specific, in-depth country-level analyses may provide further insights into the role of a child's gender in treatment abandonment decisions.
    Matched MeSH terms: Neoplasms/therapy*
  15. Tan KF, Adam F, Hussin H, Mohd Mujar NM
    Epidemiol Health, 2021;43:e2021038.
    PMID: 34044478 DOI: 10.4178/epih.e2021038
    This study compared breast cancer survival and the prognostic factors across different age groups of women in Penang, Malaysia. Data on 2,166 women with breast cancer who had been diagnosed between 2010 and 2014 were extracted from the Penang Breast Cancer Registry and stratified into 3 age groups: young (< 40 years old), middle-aged (40-59 years old), and elderly (≥ 60 years). The overall and relative survival rates were calculated using the life table method, median survival time was calculated using the Kaplan-Meier method, and comparisons between groups were conducted using the log-rank test. Prognostic factors were analyzed using a Cox proportional hazards model. The 5-year overall and breast cancer-specific survival rates for women with breast cancer in Penang were 72.9% and 75.2%, with a mean survival time of 92.5 months and 95.1 months, respectively. The 5-year breast cancer-specific survival rates for young, middle-aged, and elderly women were 74.9%, 77.8%, and 71.4%, respectively, with a mean survival time of 95.7 months, 97.5 months, and 91.2 months. There was a significant difference in breast cancer survival between age groups, with elderly women showing the lowest survival rate, followed by young and middle-aged women. Disease stage was the most prominent prognostic factor for all age groups. Survival rates and prognostic factors differed according to age group. Treatment planning for breast cancer patients should be age-specific to promote better cancer care and survival.
    Matched MeSH terms: Breast Neoplasms/therapy*
  16. Leung AKC, Lam JM, Leong KF, Hon KL
    Curr Pediatr Rev, 2021;17(1):55-69.
    PMID: 32384034 DOI: 10.2174/1573396316666200508100038
    BACKGROUND: Infantile hemangiomas are the most common vascular tumors of infancy, affecting up to 12% of infants by the first year of life.

    OBJECTIVE: To familiarize physicians with the natural history, clinical manifestations, diagnosis, and management of infantile hemangiomas.

    METHODS: A Pubmed search was conducted in November 2019 in Clinical Queries using the key term "infantile hemangioma". The search strategy included meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews published within the past 20 years. Only papers published in the English literature were included in this review. The information retrieved from the above search was used in the compilation of the present article.

    RESULTS: The majority of infantile hemangiomas are not present at birth. They often appear in the first few weeks of life as areas of pallor, followed by telangiectatic or faint red patches. Then, they grow rapidly in the first 3 to 6 months of life. Superficial lesions are bright red, protuberant, bosselated, or with a smooth surface, and sharply demarcated. Deep lesions are bluish and dome-shaped. Infantile hemangiomas continue to grow until 9 to 12 months of age, at which time the growth rate slows down to parallel the growth of the child. Involution typically begins by the time the child is a year old. Approximately 50% of infantile hemangiomas will show complete involution by the time a child reaches age 5; 70% will have disappeared by age 7; and 95% will have regressed by 10 to 12 years of age. The majority of infantile hemangiomas require no treatment. Treatment options include oral propranolol, topical timolol, and oral corticosteroids. Indications for active intervention include hemorrhage unresponsive to treatment, impending ulceration in areas where serious complications might ensue, interference with vital structures, life- or function-threatening complications, and significant disfigurement.

    CONCLUSION: Treatment should be individualized, depending upon the size, rate of growth, morphology, number, and location of the lesion (s), existing or potential complications, benefits and adverse events associated with the treatment, age of the patient, level of parental concern, and the physician's comfort level with the various treatment options. Currently, oral propranolol is the treatment of choice for high-risk and complicated infantile hemangiomas. Topical timolol may be considered for superficial infantile hemangiomas that need to be treated and for complicated infantile hemangiomas in patients at risk for severe adverse events from oral administration of propranolol.

    Matched MeSH terms: Skin Neoplasms/therapy*
  17. Goense L, van Rossum PS, Kandioler D, Ruurda JP, Goh KL, Luyer MD, et al.
    Ann N Y Acad Sci, 2016 10;1381(1):50-65.
    PMID: 27384385 DOI: 10.1111/nyas.13113
    Esophageal cancer is the eighth most common cancer worldwide, and the incidence of esophageal carcinoma is rapidly increasing. With the advent of new staging and treatment techniques, esophageal cancer can now be managed through various strategies. A good understanding of the advances and limitations of new staging techniques and how these can guide in individualizing treatment is important to improve outcomes for esophageal cancer patients. This paper outlines the recent progress in staging and treatment of esophageal cancer, with particularly attention to endoscopic techniques for early-stage esophageal cancer, multimodality treatment for locally advanced esophageal cancer, assessment of response to neoadjuvant treatment, and the role of cervical lymph node dissection. Furthermore, advances in robot-assisted surgical techniques and postoperative recovery protocols that may further improve outcomes after esophagectomy are discussed.
    Matched MeSH terms: Esophageal Neoplasms/therapy*
  18. Tan KX, Danquah MK, Sidhu A, Ongkudon CM, Lau SY
    Eur J Pharm Sci, 2017 Jan 01;96:8-19.
    PMID: 27593990 DOI: 10.1016/j.ejps.2016.08.061
    Cancer is a leading cause of global mortality. Whilst anticancer awareness programs have increased significantly over the years, scientific research into the development of efficient and specific drugs to target cancerous cells for enhanced therapeutic effects has not received much clinical success. Chemotherapeutic agents are incapable of acting specifically on cancerous cells, thus causing low therapeutic effects accompanied by toxicity to surrounding normal tissues. The search for smart, highly specific and efficient cancer treatments and delivery systems continues to be a significant research endeavor. Targeted cancer therapy is an evolving treatment approach with great promise in enhancing the efficacy of cancer therapies via the delivery of therapeutic agents specifically to and into desired tumor cells using viral or non-viral targeting elements. Viral oncotherapy is an advanced cancer therapy based on the use of oncolytic viruses (OV) as elements to specifically target, replicate and kill malignant cancer cells selectively without affecting surrounding healthy cells. Aptamers, on the other hand, are non-viral targeting elements that are single-stranded nucleic acids with high specificity, selectivity and binding affinity towards their cognate targets. Aptamers have emerged as a new class of bioaffinity targeting elements can be generated and molecularly engineered to selectively bind to diverse targets including proteins, cells and tissues. This article discusses, comparatively, the potentials and impacts of both viral and aptamer-mediated targeted cancer therapies in advancing conventional drug delivery systems through enhanced target specificity, therapeutic payload, bioavailability of the therapeutic agents at the target sites whilst minimizing systemic cytotoxicity. This article emphasizes on effective site-directed targeting mechanisms and efficacy issues that impact on clinical applications.
    Matched MeSH terms: Neoplasms/therapy*
  19. Lim RB
    Ther Adv Respir Dis, 2016 10;10(5):455-67.
    PMID: 27585597 DOI: 10.1177/1753465816660925
    Despite advances in the detection, pathological diagnosis and therapeutics of lung cancer, many patients still develop advanced, incurable and progressively fatal disease. As physicians, the duties to cure sometimes, relieve often and comfort always should be a constant reminder to us of the needs that must be met when caring for a patient with lung cancer. Four key areas of end-of-life care in advanced lung cancer begin with first recognizing 'when a patient is approaching the end of life'. The clinician should be able to recognize when the focus of care needs to shift from an aggressive life-sustaining approach to an approach that helps prepare and support a patient and family members through a period of progressive, inevitable decline. Once the needs are recognized, the second key area is appropriate communication, where the clinician should assist patients and family members in understanding where they are in the disease trajectory and what to expect. This involves developing rapport, breaking bad news, managing expectations and navigating care plans. Subsequently, the third key area is symptom management that focuses on the goals to first and foremost provide comfort and dignity. Symptoms that are common towards the end of life in lung cancer include pain, dyspnoea, delirium and respiratory secretions. Such symptoms need to be anticipated and addressed promptly with appropriate medications and explanations to the patient and family. Lastly, in order for physicians to provide quality end-of-life care, it is necessary to understand the ethical principles applied to end-of-life-care interventions. Misconceptions about euthanasia versus withholding or withdrawing life-sustaining treatments may lead to physician distress and inappropriate decision making.
    Matched MeSH terms: Lung Neoplasms/therapy*
  20. Mohd Mujar NM, Dahlui M, Emran NA, Abdul Hadi I, Wai YY, Arulanantham S, et al.
    PLoS One, 2017;12(4):e0176394.
    PMID: 28448541 DOI: 10.1371/journal.pone.0176394
    Complementary and alternative medicine (CAM) is widely used among the breast cancer patients in Malaysia. Delays in presentation, diagnosis and treatment have been shown to impact the disease prognosis. There is considerable use of CAM amongst breast cancer patients. CAM use has been cited as a cause of delay in diagnosis and treatments in qualitative studies, however there had not been any confirmatory study that confirms its impact on delays. The purpose of this study was to evaluate whether the use of CAM among newly diagnosed breast cancer patients was associated with delays in presentation, diagnosis or treatment of breast cancer. This multi-centre cross-sectional study evaluating the time points of the individual breast cancer patients' journey from first visit, resolution of diagnosis and treatments was conducted in six public hospitals in Malaysia. All newly diagnosed breast cancer patients from 1st January to 31st December 2012 were recruited. Data were collected through medical records review and patient interview by using a structured questionnaire. Complementary and alternative medicine (CAM) was defined as the use of any methods and products not included in conventional allopathic medicine before commencement of treatments. Presentation delay was defined as time taken from symptom discovery to first presentation of more than 3 months. The time points were categorised to diagnosis delay was defined as time taken from first presentation to diagnosis of more than 1 month and treatment delay was defined as time taken from diagnosis to initial treatment of more than 1 month. Multiple logistic regression was used for analysis. A total number of 340 patients participated in this study. The prevalence of CAM use was 46.5% (n = 158). Malay ethnicity (OR 3.32; 95% CI: 1.85, 5.97) and not interpreting symptom as cancerous (OR 1.79; 95% CI: 1.10, 2.92) were significantly associated with CAM use. The use of CAM was associated with delays in presentation (OR 1.65; 95% CI: 1.05, 2.59), diagnosis (OR 2.42; 95% CI: 1.56, 3.77) and treatment of breast cancer (OR 1.74; 95% CI: 1.11, 2.72) on univariate analyses. However, after adjusting with other covariates, CAM use was associated with delays in presentation (OR 1.71; 95% CI: 1.05, 2.78) and diagnosis (OR 2.58; 95% CI: 1.59, 4.17) but not for treatment of breast cancer (OR 1.58; 95% CI: 0.98, 2.55). The prevalence of CAM use among the breast cancer patients was high. Women of Malay ethnicity and not interpreting symptom as cancerous were significantly associated with CAM use. The use of CAM is significantly associated with delay in presentation and resolution of diagnosis. This study suggests further evaluation of access to breast cancer care is needed as poor access may cause the use of CAM. However, since public hospitals in Malaysia are heavily subsidized and readily available to the population, CAM use may impact delays in presentation and diagnosis.
    Matched MeSH terms: Breast Neoplasms/therapy
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