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  1. Khairil Anwar NA, Mohd Nazri MN, Murtadha AH, Mohd Adzemi ER, Balakrishnan V, Mustaffa KMF, et al.
    Acta Biochim Biophys Sin (Shanghai), 2021 Jul 28;53(8):961-978.
    PMID: 34180502 DOI: 10.1093/abbs/gmab077
    Aggressive tissue biopsy is commonly unavoidable in the management of most suspected tumor cases to conclusively verify the presence of cancerous cells through histological assessment. The extracted tissue is also immunostained for detection of antigens (tissue tumor markers) of potential prognostic or therapeutic importance to assist in treatment decision. Although liquid biopsies can be a powerful tool for monitoring treatment response, they are still excluded from standard cancer diagnostics, and their utility is still being debated in the scientific community. With a myriad of soluble tissue tumor markers now being discovered, liquid biopsies could completely change the current paradigms of cancer management. Recently, soluble programmed cell death ligand-1 (sPD-L1), which is found in the peripheral blood, i.e. serum and plasma, has shown potential as a pre-therapeutic predictive marker as well as a prognostic biomarker to monitor treatment efficacy. Thus, this review focuses on the emergence of sPD-L1 and promising technologies for its detection in order to support liquid biopsies for future cancer management.
  2. Pushpanathan NR, Hashim MNM, Zahari Z, Aziz SHSA, Zain WZW, Ramely R, et al.
    Ann Coloproctol, 2022 Dec;38(6):409-414.
    PMID: 34407370 DOI: 10.3393/ac.2020.00437.0062
    PURPOSE: Laparoscopic appendicectomy (LA) has several advantages over conventional open appendicectomy (OA). However, about 5% to 10% of LA patients still need to be converted to open surgery. Identifying risk factors that contribute to conversion to OA allows for early identification of patients who may benefit from primary OA. This study aimed to determine the conversion rate of LA to OA and to identify its associated risk factors among patients with acute or perforated appendicitis.

    METHODS: A retrospective review of medical records was performed among patients with acute or perforated appendicitis who underwent LA between December 2015 and January 2017. With the use of multivariable logistic regression analyses, the predictors of conversion from laparoscopic to OA were investigated.

    RESULTS: Out of 120 patients, 33 cases were converted to OA which gives a conversion rate of 27.5%. Among 33 patients who were converted to OA, 27 patients (81.8%) had perforated appendix, while in the LA group, perforated appendix cases consisted of 34.5% (P<0.001). Histopathology of the appendix was the predictor of conversion from LA to OA (adjusted odds ratio, 8.82; 95% confidence interval, 3.13-24.91; P<0.001).

    CONCLUSION: The result from our study shows that the overall conversion rate for the study period was high. Patients with perforated appendicitis had a higher risk of conversion to OA. Therefore, preoperative diagnosis of perforated appendicitis may be paramount in predicting conversion to OA.

  3. Tan PG, Ab Hadi IS, Zahari Z, Yahya MM, Wan Zain WZ, Wong MP, et al.
    Ann Surg Treat Res, 2020 Jan;98(1):1-6.
    PMID: 31909044 DOI: 10.4174/astr.2020.98.1.1
    Purpose: Patients with secondary hyperparathyroidism are at high risk for developing postoperative hypocalcemia. However, there are limited data regarding predictors of postoperative hypocalcemia in renal failure patient with secondary hyperparathyroidism. This study aimed to determine the clinical presentations of renal hyperparathyroidism and the predictors of early postoperative hypocalcemia after total parathyroidectomy.

    Methods: Data of patients with renal hyperparathyroidism who underwent total parathyroidectomy between January 2007 to December 2014 were reviewed retrospectively. Patients were divided into 2 cohort groups according to their serum calcium levels within 24 hours of parathyroidectomy: the hypocalcemia group (calcium levels of 2 mmol/L or less), and the normocalcemia group (calcium levels more than 2 mmol/L). With the use of multivariable logistic regression analyses, the predictors of early postoperative hypocalcemia after total parathyroidectomy in patients with renal hyperparathyroidism were investigated.

    Results: Among 68 patients, 56 patients (82.4%) were symptomatic preoperatively. Fifty patients (73.5%) presented with bone pain and 14 patients (20.6%) had muscle weakness. Early postoperative hypocalcemia occurred in 25 patients (36.8%). Preoperative alkaline phosphatase level was the predictor of early postoperative hypocalcemia (adjusted odds ratio, 1.004; 95% confidence interval, 1.001-1.006; P = 0.002).

    Conclusion: Results from our study show that most of the patients with renal hyperparathyroidism were symptomatic preoperatively and the most common clinical presentations were bone pain and muscle weakness. The significant predictor of early postoperative hypocalcemia after total parathyroidectomy was the preoperative alkaline phosphatase levels.

  4. Jusoh AR, Mohan SV, Lu Ping T, Tengku Din TADAAB, Haron J, Romli RC, et al.
    Asian Pac J Cancer Prev, 2021 May 01;22(5):1375-1381.
    PMID: 34048164 DOI: 10.31557/APJCP.2021.22.5.1375
    OBJECTIVE: This study aimed to characterize the miRNA expression profiles from plasma samples of our local breast cancer patients in comparison to healthy control by using miRNA PCR Array.

    METHODS: In this study, plasma miRNA profiles from eight early-stage breast cancer patients and nine age-matched (± 2 years) healthy controls were characterized by miRNA array-based approach, followed by differential gene expression analysis, Independent T-test and construction of Receiver Operating Characteristic (ROC) curve to determine the capability of the assays to discriminate between breast cancer and the healthy control.

    RESULTS: Based on the 372-miRNAs microarray profiling, a set of 40 differential miRNAs was extracted regarding to the fold change value at 2 and above. We further sub grouped 40 miRNAs of breast cancer patients that were significantly expressed at 2-fold change and higher. In this set, we discovered that 24 miRNAs were significantly upregulated and 16 miRNAs were significantly downregulated in breast cancer patients, as compared to the miRNA expression of healthy subjects. ROC curve analysis revealed that seven miRNAs (miR-125b-5p, miR-142-3p, miR-145-5p, miR-193a-5p, miR-27b-3p, miR-22-5p and miR-423-5p) had area under curve (AUC) value > 0.7 (AUC p-value < 0.05). Overlapping findings from differential gene expression analysis, ROC analysis, and Independent T-Test resulted in three miRNAs (miR-27b-3p, miR-22-5p, miR-145-5p). Cohen's effect size for these three miRNAs was large with d value are more than 0.95.

    CONCLUSION: miR-27b-3p, miR-22-5p, miR-145-5p could be potential biomarkers to distinguish breast cancer patients from healthy controls. A validation study for these three miRNAs in an external set of samples is ongoing.
    .

  5. Abdul Aziz AA, Md Salleh MS, Yahya MM, Zakaria AD, Ankathil R
    Asian Pac J Cancer Prev, 2021 Apr 01;22(4):1319-1324.
    PMID: 33906328 DOI: 10.31557/APJCP.2021.22.4.1319
    BACKGROUND: Triple negative breast cancer (TNBC) which is treated with taxane, adriamycin and cyclophosphamide (TAC) chemotherapy regimen show variation in treatment response. CYP1B1 4326 C>G polymorphism has been implicated in contributing to the differences in treatment response in various types of cancers.

    AIM: The objective of the present study was to investigate whether this polymorphism modulate the risk of disease recurrence in TNBC patients undergoing TAC chemotherapy regimen.

    METHODS: Blood samples of 76 immunohistochemistry confirmed TNBC patients were recruited. The genotyping of CYP1B1 4326 C>G polymorphism was carried out using PCR-RFLP technique. The genotype patterns were categorized into homozygous wildtype, heterozygous and homozygous variant. Kaplan-Meier analysis followed by Cox proportional hazard regression model were performed to evaluate the TNBC patients' recurrence risk.

    RESULTS: Out of 76 TNBC patients, 25 (33.0%) showed disease recurrence after one-year evaluation. Kaplan Meier analysis showed that TNBC patients who are carriers of CYP1B1 4326 GG variant genotypes (37.0%) had a significantly lower probability of disease-free rates as compared to TNBC patients who are carriers of CYP1B1 4326 CC/CG genotypes (71.0%). Univariate and multivariate Cox analysis demonstrated that TNBC patients who carried CYP1B1 4326 GG variant genotype had a significantly higher risk of recurrence with HR: 2.50 and HR: 4.18 respectively, even after adjustment as compared to TNBC patients who were carriers of CYP1B1 4326 CC and CG genotypes.

    CONCLUSION: Our results demonstrate the potential use of CYP1B1 4325 GG variant genotype as a candidate biomarker in predicting risk of recurrence in TNBC patients undergoing TAC chemotherapy regimen.

  6. Hao Ing Y, Md Salleh MS, Yahya MM, Ankathil R, Abdul Aziz AA
    Asian Pac J Cancer Prev, 2023 Nov 01;24(11):3891-3897.
    PMID: 38019248 DOI: 10.31557/APJCP.2023.24.11.3891
    OBJECTIVE: The aim of this study was to elucidate the association of ATP-binding cassette super-family G member 2 (ABCG2) gene polymorphisms with individual susceptibility to Triple Negative Breast Cancer (TNBC) as well as clinicopathological variables in TNBC patients. Two common polymorphisms in Asian population, ABCG2 34 G>A and 421 C>A was selected in this study.

    METHODS: Blood samples were collected from 75 TNBC patients and 83 controls. Genomic DNA was extracted from blood samples and the SNP genotyping was performed by using PCR-RFLP technique. The genotypes were characterized and grouped into homozygous wildtype, heterozygote and homozygous variant based on the band size. The result was subjected to statistical analysis.

    RESULTS: The A allele and AA genotype of ABCG2 421 C>A had OR of 3.011 (p=0.003, 95% CI: 1.417-6.398) and 9.042 (p=0.011, 95% CI: 1.640-49.837), to develop advanced staging carcinoma respectively. The AA genotype of ABCG2 421 C>A polymorphism was also associated with metaplastic and medullary carcinoma with an OR of 6.429 (p=0.018, 95% CI: 1.373-30.109). A significant association was also found in haplotype 34G/421A of ABCG2 with advanced cancer staging as well as metaplastic and medullary carcinoma with OR of 2.347 (p=0.032, 95% CI: 1.010-5.560) and 2.546 (p=0.008, 95% CI: 1.005-6.447), respectively.  Conclusion: The present study suggests that ABCG2 421 C>A polymorphism was associated with metaplastic and medullary histology and advanced cancer staging in TNBC patients.

  7. Nawawi SH, Wan Ibrahim WZ, Yahya MM, Ramli R
    BMJ Case Rep, 2023 Aug 17;16(8).
    PMID: 37591622 DOI: 10.1136/bcr-2022-253129
    A woman in her early 50s with uncontrolled diabetes mellitus and a huge uterine fibroid presented to the emergency department with diabetic ketoacidosis and bilateral acute lower limb ischaemia. Vascular and advanced imaging studies confirmed distal aortic compression by a huge uterine fibroid, resulting in extensive lower limb arterial thrombosis. After resuscitation, the patient underwent emergency hysterectomy, thromboembolectomy and amputation of the right leg. She remained critically ill and died of fulminant sepsis and multiorgan failure 10 days later. This case reports the effects of external vascular compression by a large pelvic mass.
  8. Yahya MM, Ismail MP, Ramanathan S, Kadir MN, Azhar A, Ibrahim NBC, et al.
    Biomedicines, 2023 Feb 11;11(2).
    PMID: 36831061 DOI: 10.3390/biomedicines11020525
    Breast carcinoma is the most common cancer of women in Malaysia. The most common sites of metastasis are the lung, liver, bone and brain. A 45-year-old lady was diagnosed with left invasive breast carcinoma stage IV (T4cN1M1) with axillary lymph nodes and lung metastasis. She was noted to have a cervical mass through imaging, and biopsy showed CIN III. Post chemotherapy, the patient underwent left simple mastectomy with examination under anaesthesia of the cervix, cystoscopy and staging. The cervical histopathological examination (HPE) showed squamous cell carcinoma, and clinical staging was 2A. The breast tissue HPE showed invasive carcinoma with triple receptors positivity. The patient was given tamoxifen and put on concurrent chemoradiotherapy (CCRT) for the cervical cancer. The management of each pathology of this patient involved a multi-disciplinary team that included surgeons, oncologists, gynaecologists, pathologists and radiologists. Due to the complexity of the case with two concurrent cancers, the gene expression profiles may help predict the patient's clinical outcome.
  9. Siddig A, Wan Abdul Rahman WF, Mohd Nafi SN, Sulong S, Yahya MM, Al-Astani Tengku Din TAD, et al.
    Biomedicines, 2023 Jan 12;11(1).
    PMID: 36672708 DOI: 10.3390/biomedicines11010200
    Background: Breast cancer developed at a young age (≤45 years) is hypothesized to have unique biology; however, findings in this field are controversial. Methods: We compared the whole transcriptomic profile of young vs. old-age breast cancer using DNA microarray. RNA was extracted from 13 fresh estrogen receptor (ER)-positive primary breast cancer tissues of untreated patients (7 = young age ≤45 years and 6 = old age ≥55 years). In silico validation for the differentially expressed genes (DEGs) by young-age patients was conducted using The Cancer Genome Atlas (TCGA) database. Next, we analyzed the protein expression encoded by two of the significantly down-regulated genes by young-age patients, Glycine N-acyltransferase-like 1 (GLYATL-1) and Ran-binding protein 3 like (RANBP3L), using immunohistochemical analysis in an independent cohort of 56 and 74 ER-positive pre-therapeutic primary breast cancer tissues, respectively. Results: 12 genes were significantly differentially expressed by young-age breast cancers (fold change >2 or <2- with FDR p-value < 0.05). TCGA data confirmed the differential expression of six genes. Protein expression analysis of GLYATL-1 and RANBP3L did not show heterogeneous expression between young and old-age breast cancer tissues. Loss of expression of GLYATL-1 was significantly (p-value 0.005) associated with positive lymph node status. Higher expression of RANBP3L was significantly associated with breast cancers with lower histopathological grades (p-value 0.038). Conclusions: At the transcriptomic level, breast cancer developed in young and old age patients seems homogenous. The variation in the transcriptomic profiles can be attributed to the other clinicopathological characteristics rather than the age of the patient.
  10. Ishak A, Yahya MM, Halim AS
    Clin Breast Cancer, 2018 10;18(5):e1011-e1021.
    PMID: 29784600 DOI: 10.1016/j.clbc.2018.04.012
    BACKGROUND: Breast reconstruction after mastectomy is important in breast cancer care.

    MATERIALS AND METHODS: A cross-sectional study was designed to assess surgeons' and patients' perceptions toward breast reconstruction. Questionnaires were distributed to general and breast surgeons in East Coast Malaysian hospitals and Hospital Kuala Lumpur and to postmastectomy patients with and without breast reconstruction at the Hospital Universiti Sains Malaysia and Hospital Raja Perempuan Zainab II. The response rates were 82.5% for the surgeons (n = 33), 95.4% for the patients with reconstruction (n = 63), and 95.5% for the patients without reconstruction (n = 278).

    RESULTS: The median surgeon age and experience was 42 and 6 years, respectively. Each surgeon saw an average of 20 new breast cancer cases annually. Most surgeons (86.7%) discussed reconstruction options with their patients but had only referred an average of 4 patients for reconstruction during a 3-year period. Surgeons' concerns regarding the qualitative outcome increased the likelihood of a breast reconstruction discussion (β = 4.833; P = .044). The women who underwent breast reconstruction were younger (mean age, 42 vs. 50 years), were more often working (69.4% vs. 42.2%), and more often had previous awareness of the option (90.3% vs. 44.3%). The most common reasons for undergoing breast reconstruction were "to feel more balanced" (92.1%) and "surgeon's strong recommendation" (92.1%). Previous knowledge of breast reconstruction increased the likelihood of reconstruction (odds ratio, 5.805; P = .026). Although 70% of surgeons thought that patients would not be interested in reconstruction, only 37.9% of patients with previous awareness reported having no interest.

    CONCLUSION: The low reconstruction rate (20.6%) can be attributed to the low referral rate. Patients' likelihood to undergo reconstruction with their surgeon's recommendation and with previous awareness were reflective of the surgeons' strong influence on their patients. Thus, clarification of surgeons' hypothetical criticisms could conceivably increase the reconstructive surgery rate.

  11. Heng SSL, Gan YH, Yahya MM, Haron J, Wan Sulaiman WA
    Clin Breast Cancer, 2022 Dec;22(8):e863-e873.
    PMID: 36154798 DOI: 10.1016/j.clbc.2022.08.014
    INTRODUCTION: The impact of breast reconstruction on spinal alignment is not well studied, especially in immediate autologous breast reconstruction. Studies on body posture have shown greater asymmetry among those without reconstruction. This study compared the changes in spinal alignment pre- and post-operatively among women who underwent unilateral mastectomy without reconstruction (MA) versus immediate autologous breast reconstruction (IABR).

    METHODS: A cross sectional, retrospective study analysed MA and IABRs performed from January 2007 to December 2017 and their pre- and post-operative anterior chest radiographs. The change in Cobb's angle (degrees) less than 1 year, 1 to 2 years, more than 2 years post-operatively were analysed using GE Healthcare Centricity Picture Archive and Communications Systems.

    RESULTS: 537 patients underwent mastectomy; 76 fulfilled the inclusion criteria (36 IABR, 40 MA). No significant difference existed between mean pre- and post-operative Cobb's angle change across all 3 groups, less than 1 year (MA 3.57±3.84, IABR 3.316±2.72, p=0.81), 1 to 2 years (MA 1.84±4.81, IABR -2.68±3.21, p=0.577) and more than 2 years post-operatively (MA -1.14±5.30, IABR -0.94±5.10, p=0.898). However raw data indicated IABR improved spinal alignment in the short and intermediate period post-operatively. Among IABR, free flap breast reconstruction improved spinal alignment compared to pedicled flaps [free flaps: 2.21±3.28, pedicled flaps: 0.01±3.67 (p=0.027)].

    CONCLUSION: IABR has a positive impact on spinal alignment in early and intermediate post-operative period compared to MA, especially in women with larger breast volume. Physical benefits of IABR should be highlighted to improve patient's access to breast reconstruction globally.

  12. Rahimi M, Mohamad IS, Yahya MM, Mohammad Azmi MAF, Voon Meng L
    Endoscopy, 2024 Dec;56(S 01):E195-E196.
    PMID: 38388953 DOI: 10.1055/a-2258-8436
  13. Othman N, Mohamed Z, Yahya MM, Leow VM, Lim BH, Noordin R
    Exp Parasitol, 2013 Aug;134(4):504-10.
    PMID: 23680184 DOI: 10.1016/j.exppara.2013.05.001
    Entamoeba histolytica is a causative agent of amoebic liver abscess (ALA) and is endemic in many underdeveloped countries. We investigated antigenic E. histolytica proteins in liver abscess aspirates using proteomics approach. Pus samples were first tested by real-time PCR to confirm the presence of E. histolytica DNA and the corresponding serum samples tested for E. histolytica-specific IgG by a commercial ELISA. Proteins were extracted from three and one pool(s) of pus samples from ALA and PLA (pyogenic liver abscess) patients respectively, followed by analysis using isoelectric focussing, SDS-PAGE and Western blot. Unpurified pooled serum samples from infected hamsters and pooled human amoebic-specific IgG were used as primary antibodies. The antigenic protein band was excised from the gel, digested and analysed by MALDI-TOF/TOF and LC-MS/MS. The results using both primary antibodies showed an antigenic protein band of ∼14kDa. Based on the mass spectrum analysis, putative tyrosine kinase is the most probable identification of the antigenic band.
  14. Siddig A, Tengku Din TADA, Mohd Nafi SN, Yahya MM, Sulong S, Wan Abdul Rahman WF
    Genes (Basel), 2021 03 05;12(3).
    PMID: 33807872 DOI: 10.3390/genes12030372
    Breast cancer commonly affects women of older age; however, in developing countries, up to 20% of breast cancer cases present in young women (younger than 40 years as defined by oncology literature). Breast cancer in young women is often defined to be aggressive in nature, usually of high histological grade at the time of diagnosis and negative for endocrine receptors with poor overall survival rate. Several researchers have attributed this aggressive nature to a hidden unique biology. However, findings in this aspect remain controversial. Thus, in this article, we aimed to review published work addressing somatic mutations, chromosome copy number variants, single nucleotide polymorphisms, differential gene expression, microRNAs and gene methylation profile of early-onset breast cancer, as well as its altered pathways resulting from those aberrations. Distinct biology behind early-onset of breast cancer was clear among estrogen receptor-positive and sporadic cases. However, further research is needed to determine and validate specific novel markers, which may help in customizing therapy for this group of patients.
  15. Yam YY, Hoh BP, Othman NH, Hassan S, Yahya MM, Zakaria Z, et al.
    Genet. Mol. Res., 2013;12(1):319-27.
    PMID: 23420356 DOI: 10.4238/2013.February.7.1
    Colorectal cancer is one of the most common cancers in many countries, including Malaysia. The accumulation of genomic alterations is an important feature of colorectal carcinogenesis. A better understanding of the molecular events underlying the stages of colorectal carcinogenesis might be helpful in the detection and management of the disease. We used a commercially available single-nucleotide polymorphism genotyping array to detect both copy number abnormalities (CNAs) and copy-neutral loss of heterozygosity (LOH) in sporadic colorectal carcinomas. Matched tumor and normal tissues of 13 colorectal carcinomas (Dukes' stages A-D) were analyzed using a 250K single nucleotide polymorphism array. An additional assay was performed to determine the microsatellite instability status by using the National Cancer Institute-recommended BAT-26 panel. In general, copy number gain (92.3%) was most common, followed by copy number loss (53.8%) and copy-neutral LOH (46.2%). Frequent CNAs of gains and losses were observed on chromosomes 7p, 8, 13q, 17p, 18q, and 20q, and copy-neutral LOH was observed on chromosomes 2, 6, 12, 13q, 14q, 17, 20p, 19q, and 22q. Even though genomic alterations are associated with colorectal cancer progression, our results showed that DNA CNAs and copy-neutral LOH do not reflect disease progression in at least 50% tumors. Copy-neutral LOH was observed in both early and advanced tumors, which favors the involvement of these genomic alterations in the early stages of tumor development.
  16. Liu J, He G, Zhang H, Yahya MM
    Gland Surg, 2023 Sep 25;12(9):1318-1325.
    PMID: 37842525 DOI: 10.21037/gs-23-5
    BACKGROUND: Breast preservation can considerably improve the postoperative living quality of breast cancer patients. Through this study, we proposed a novel, safe, and effective surgical modality for breast preservation in patients with early breast cancer.

    CASE DESCRIPTION: Herein, we present a case report of a patient with early-stage breast cancer (T1cN0M0), who underwent skin-sparing nipple areola hypodermic gland resection combined with primary breast reconstruction using silicone implants. The patient was administered with general anesthesia, and the implants were inserted using a insufflation-free suspension and hook suspension under the pectoralis major muscle. The patient was followed up on postoperative days 1, 2, 7, 14, 30, 60, and 100 to check for any complications, such as upper limb edema, paresthesia, or flap necrosis. The patient experienced no complications. No obvious surgical scars or axillary surface infections were observed. The patient was satisfied with the surgical outcome, and this treatment approach reduced her treatment costs by approximately USD 2,600.

    CONCLUSIONS: The new surgical procedure for breast reconstruction considerably improved the quality of life of the patient; no postoperative complications such as skin flap necrosis, paresthesia, or upper limb edema were experienced by the patient; and the treatment costs were reduced. In addition, this method effectively overcomes the concerns related to axillary space instability and limited operative space, rendering it worthy of promotion in clinical practice.

  17. Nik Ab Kadir MN, Mohd Hairon S, Yaacob NM, Yusof SN, Musa KI, Yahya MM, et al.
    PMID: 36833678 DOI: 10.3390/ijerph20042985
    Women with breast cancer are keen to know their predicted survival. We developed a new prognostic model for women with breast cancer in Malaysia. Using the model, this study aimed to design the user interface and develop the contents of a web-based prognostic tool for the care provider to convey survival estimates. We employed an iterative website development process which includes: (1) an initial development stage informed by reviewing existing tools and deliberation among breast surgeons and epidemiologists, (2) content validation and feedback by medical specialists, and (3) face validation and end-user feedback among medical officers. Several iterative prototypes were produced and improved based on the feedback. The experts (n = 8) highly agreed on the website content and predictors for survival with content validity indices ≥ 0.88. Users (n = 20) scored face validity indices of more than 0.90. They expressed favourable responses. The tool, named Malaysian Breast cancer Survival prognostic Tool (myBeST), is accessible online. The tool estimates an individualised five-year survival prediction probability. Accompanying contents were included to explain the tool's aim, target user, and development process. The tool could act as an additional tool to provide evidence-based and personalised breast cancer outcomes.
  18. Nik Ab Kadir MN, Yaacob NM, Yusof SN, Ab Hadi IS, Musa KI, Mohd Isa SA, et al.
    Int J Environ Res Public Health, 2022 Nov 20;19(22).
    PMID: 36430052 DOI: 10.3390/ijerph192215335
    Prediction of survival probabilities based on models developed by other countries has shown inconsistent findings among Malaysian patients. This study aimed to develop predictive models for survival among women with breast cancer in Malaysia. A retrospective cohort study was conducted involving patients who were diagnosed between 2012 and 2016 in seven breast cancer centres, where their survival status was followed until 31 December 2021. A total of 13 predictors were selected to model five-year survival probabilities by applying Cox proportional hazards (PH), artificial neural networks (ANN), and decision tree (DT) classification analysis. The random-split dataset strategy was used to develop and measure the models' performance. Among 1006 patients, the majority were Malay, with ductal carcinoma, hormone-sensitive, HER2-negative, at T2-, N1-stage, without metastasis, received surgery and chemotherapy. The estimated five-year survival rate was 60.5% (95% CI: 57.6, 63.6). For Cox PH, the c-index was 0.82 for model derivation and 0.81 for validation. The model was well-calibrated. The Cox PH model outperformed the DT and ANN models in most performance indices, with the Cox PH model having the highest accuracy of 0.841. The accuracies of the DT and ANN models were 0.811 and 0.821, respectively. The Cox PH model is more useful for survival prediction in this study's setting.
  19. Heng SSL, Yahya MM, Sulaiman WAW, Saad AZM
    Int J Surg Case Rep, 2021 Mar;80:105202.
    PMID: 33500231 DOI: 10.1016/j.ijscr.2020.10.096
    INTRODUCTION: Juvenile giant fibroadenoma is a rare type of fibroadenoma characterized by rapid growth of a breast tumor in an adolescent. Benign in nature, they rarely present as fungating and ulcerating tumors. Benign tumors masquerading as malignancies are surgical conundrums. No co nsensus exists yet on the management of these cases. We aim to discuss the dilemma in managing a bleeding, fungating giant fibroadenoma in an adolescent female and highlight risks of alternative therapies.

    PRESENTATION OF CASE: A 19-year-old lady presented with a bleeding, fungating breast mass worsened with topical herbal concoction. Examination revealed a 10 × 15 cm fungating breast mass that obliterated her nipple- areolar complex (NAC). Computed Tomography (CT) scan reported a huge heterogeneously enhancing mass 10.6 × 14.5 × 15.1 cm with loss of normal fat plane with the overlying skin but a clear fat plane with the pectoralis muscle posteriorly.

    DISCUSSION: Giant breast masses that fungate and ulcerate usually indicate a sinister pathology. Traditional remedies have been reported to exacerbate growth. In cases where most of the breast parenchyma and NAC has been destroyed, it is no longer possible to proceed with breast conserving techniques. Breast reconstruction is crucial in adolescents and should be tailored to the patient's existing breast size as well as body habitus.

    CONCLUSION: In juvenile giant fibroadenomas where breast parenchyma and NAC has been destroyed, breast reconstruction is the goal. The lack of consensus in both diagnosis and management further compounds the difficulty in dealing with this sensitive population. Awareness needs to be raised regarding negative effects related to traditional medicine.

  20. Faisham W, Azman W, Muzaffar T, Muslim D, Azhar A, Yahya M
    Malays Orthop J, 2012 Nov;6(3):37-9.
    PMID: 25279054 MyJurnal DOI: 10.5704/MOJ.1207.002
    Traumatic hemipelvectomy is an uncommon and life threatening injury. We report a case of a 16-year-old boy involved in a traffic accident who presented with an almost circumferential pelvic wound with wide diastasis of the right sacroiliac joint and symphysis pubis. The injury was associated with complete avulsion of external and internal iliac vessels as well as the femoral and sciatic nerves. He also had ipsilateral open comminuted fractures of the femur and tibia. Emergency debridement and completion of amputation with preservation of the posterior gluteal flap and primary anastomosis of the inferior gluteal vessels to the internal iliac artery stump were performed. A free fillet flap was used to close the massive exposed area.
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