Displaying publications 141 - 160 of 1243 in total

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  1. Male ductal carcinoma in situ (DCIS): treatment strategies in this rare entity
    Aznan MS, Razrim R, Affirul CA, Rohaizak M
    Clin Ter, 2015;166(5):e327-9.
    PMID: 26550818 DOI: 10.7417/T.2015.1887
    Ductal carcinoma in situ (DCIS) in females is a recognized premalignant disease. However, its occurrence in males is rare. Articles describing this disease are scarce with documented occurrence is less than 7% worldwide. We report a case of 52 year-old gentleman presented with 6 months history of left breast lump. It was painless with no nipple discharge. Despite an inconclusive biopsy, lumpectomy was performed in view of the suspicion of malignant disease. Histopathology confirms DCIS. He underwent mastectomy and sentinel lymph nodes. Most treatment strategies are based on evidence on female breast malignancy and modifications are needed due to the different pathological pathway in male.
  2. Fulltext A review of teenage pregnancy research in Malaysia
    Mohd Azri MS, Adibah HI, Haliza G
    Med J Malaysia, 2015 Aug;70(4):214-9.
    PMID: 26358016 MyJurnal
    OBJECTIVE: To summarise the published research on teenage pregnancy in Malaysia, discuss the impact of the findings on clinical practice, and identify gaps in teenage pregnancy research in Malaysia.
    METHODS: There were 31 articles related to teen pregnancy found after searching a database dedicated to indexing all original clinical research data published in Malaysia from year 2000 to 2014. Twenty-seven articles (including reports from the National Obstetrics Registry) were selected and reviewed on the basis of clinical relevance and future research implications. This literature review has been divided into eight sections: epidemiology, age at first marriage, adolescent fertility rate, unmarried childbearing, risk factors, maternal risks and neonatal outcome, future plan after delivery, and contraceptive use.
    RESULTS: More than 19,000 births to teenage mothers were recorded each year between 2009 and 2011. Adolescent fertility rates were recorded at 6 births per 1000 women ages 15-19 years in 2013. Many of these births were from unwed pregnancies, which accounted for 1.99% of total deliveries. A majority of young mothers were willing to take care of their baby, although some of them planned to put their baby up for adoption. Risk factors for teenage pregnancy were found to be similar to those published in studies worldwide.
    CONCLUSION: More research is needed to better understand the issue of teen pregnancy. For the best results, collaborative studies among nationwide hospitals and institutions should be the way forward.
  3. Performance of signal-to-noise ratio estimation for scanning electron microscope using autocorrelation Levinson-Durbin recursion model
    Sim KS, Lim MS, Yeap ZX
    J Microsc, 2016 07;263(1):64-77.
    PMID: 26871742 DOI: 10.1111/jmi.12376
    A new technique to quantify signal-to-noise ratio (SNR) value of the scanning electron microscope (SEM) images is proposed. This technique is known as autocorrelation Levinson-Durbin recursion (ACLDR) model. To test the performance of this technique, the SEM image is corrupted with noise. The autocorrelation function of the original image and the noisy image are formed. The signal spectrum based on the autocorrelation function of image is formed. ACLDR is then used as an SNR estimator to quantify the signal spectrum of noisy image. The SNR values of the original image and the quantified image are calculated. The ACLDR is then compared with the three existing techniques, which are nearest neighbourhood, first-order linear interpolation and nearest neighbourhood combined with first-order linear interpolation. It is shown that ACLDR model is able to achieve higher accuracy in SNR estimation.
  4. Fulltext Prevalence and predictors of suicidality among medical students in a public university
    Tan ST, Sherina MS, Rampal L, Normala I
    Med J Malaysia, 2015 Feb;70(1):1-5.
    PMID: 26032521 MyJurnal
    BACKGROUND: Undergraduate medical students have been the most distressed group among the student population. Depression and anxiety have been found to be more prevalent in this group of students compared to others.

    OBJECTIVE: This study was conducted to determine the prevalence and predictors of suicidality among undergraduate medical students in a public university.

    METHODS: This was an analytical cross-sectional study, conducted in a public university in Selangor, Malaysia. Data were collected using self-administered questionnaires from January to February 2013, and analysed using the Statistical Package for Social Sciences Software (version 21).

    RESULTS: Out of 625 undergraduate medical students, 537 (85.9%) participated in the study. The prevalence of the suicidality among undergraduate medical students was 7.0%. The significant predictors of suicidality based on multiple logistic regression were the respondent's lifetime suicide attempts (Adjusted Odds Ratio, AOR 10.4, 95% CI 2.7 to 40.9); depression (AOR 5.9, 95% CI 1.5 to 23.0); breaking off a steady love relationship (AOR 5.4, 95% CI 1.3 to 22.4); hopelessness (AOR 4.9, 95% CI 1.1 to 21.6); and something valued being lost or stolen (AOR 4.4, 95% CI 1.2 to 15.9).

    CONCLUSION: These findings indicate that mental health care services should be strengthened at university level. The results show a need for an intervention programme to reduce suicidality among the undergraduate medical students.
  5. Fulltext Audit on management of eclampsia at Sultan Abdul Halim Hospital
    Mohd Azri MS, Edahayati AT, Kunasegaran K
    Med J Malaysia, 2015 Jun;70(3):142-7.
    PMID: 26248775 MyJurnal
    INTRODUCTION: Maternal mortality and morbidity from eclampsia continues to be seen around the globe. Local Key Performance Index on recurrence of eclamptic fits did not meet targets, thus this raised the issue whether the care provided adhered to the standard management for eclampsia.

    METHODS: This clinical audit was conducted to assess and improve the quality of the service being offered to patient, particularly in managing eclampsia cases. It was conducted according to the audit cycle. It begins with the development of 12 standardized criteria for eclampsia management. First audit was conducted by retrospectively reviewing eclampsia cases from year 2008 till 2012. Strategies for changes were formulated and implemented following the results of the first audit. Second audit was conducted six months after the changes.

    RESULTS: The overall incidence rate of eclampsia was 9.17 per 10,000 deliveries. A first seizure occurred during the antepartum period in 52.9% of cases (n=27), intrapartum in 24% (n=11) and postpartum in 21% of cases (n=13). Suboptimal care was mainly on delay of activation of Red Alert system and no treatment for uncontrolled blood pressure. Several strategies were implemented, mainly on improving working knowledge of the staffs and reengineering hospital Red Alert system. Positive achievements observed during the second audit, shown by a reduction in the number of patients with recurrence eclamptic fits and perinatal mortality rate.

    CONCLUSION: Conducting an audit is essential to evaluate local performance against the standardized criteria. Improvement can be achieved with inexpensive solutions and attainable within a short period of time.
    Study site: Sultan Abdul Halim Hospital, Sungai Petani, Kedah, Malaysia
  6. Outcome of chemotherapy counseling by pharmacists on psychological effects and self esteem among oncology patients in a Government Hospital in Malaysia
    Ummavathy P, Sherina MS, Rampal L, Siti Irma Fadhilah I
    Med J Malaysia, 2015 Jun;70(3):131-41.
    PMID: 26248774 MyJurnal
    INTRODUCTION: Chemotherapy is the most common form of treatment among cancer patients. It is also known to cause many physical and psychological side-effects.

    OBJECTIVE: This study developed, implemented and evaluated the outcome of a chemotherapy counseling module among oncology patients by pharmacists based on their psychological effects (depression, anxiety) and selfesteem.

    METHODS: A randomized, single blind, placebo controlled study was conducted among 162 patients undergoing chemotherapy in a government hospital in Malaysia.

    INTERVENTION: Counseling sessions were conducted using the 'Managing Patients on Chemotherapy' module for oncology patients undergoing chemotherapy at each treatment cycle.

    OUTCOME: The outcome of repetitive chemotherapy counseling using the module was determined at baseline, first follow-up, second follow-up and third follow-up.

    RESULTS: The findings revealed that there was significant improvement in the intervention group as compared to the control group with large effect size on depression (p = 0.001, partial η(2) = 0.394), anxiety (p = 0.001, partial η(2) = 0.232) and self-esteem (p = 0.001, partial η(2) = 0.541).

    CONCLUSION: Repetitive counseling using the 'Managing Patients on Chemotherapy' module was found to be effective in improving psychological effects and self-esteem among patients undergoing chemotherapy.

  7. Intestinal parasites in Malaysian children with cancer
    Menon BS, Abdullah MS, Mahamud F, Singh B
    J Trop Pediatr, 1999 Aug;45(4):241-2.
    PMID: 10467838
    In this prospective study, we examined stool specimens from children with cancer receiving chemotherapy who were admitted for fever to the Universiti Sains Malaysia Hospital in Kota Baru, Kelantan. Stool specimens were examined for ova and cysts of parasites. Over a period of 15 months, there were 129 febrile episodes in 50 children with cancer and, in all, 237 stool specimens were examined. Sixty-six per cent of febrile episodes were associated with neutropenia and 9 per cent were associated with diarrhoea. Stool parasites were found in 42 per cent of children. The most common were helminths, followed by protozoa. Trichuris trichiura was the most common parasite (24 per cent), followed by Ascaris lumbricoides (22 per cent). Hookworm was found in 2 per cent. Giardia lamblia was found in 6 per cent of children, Blastocystis hominis in 4 per cent, and Cryptosporidium parvum in 2 per cent.
  8. Some mechanical properties of a highly cross-linked, microwave-polymerized, injection-molded denture base polymer
    Memon MS, Yunus N, Razak AA
    Int J Prosthodont, 2001 May-Jun;14(3):214-8.
    PMID: 11484567
    PURPOSE: The impact strength and the flexural properties of denture base materials are of importance in predicting their clinical performance upon sudden loading. This study compares the impact and transverse strengths and the flexural modulus of three denture base polymers.
    MATERIALS AND METHODS: The investigation included a relatively new microwave-polymerized polyurethane-based denture material processed by an injection-molding technique, a conventional microwave-polymerized denture material, and a heat-polymerized compression-molded poly(methyl methacrylate) (PMMA) denture material. Impact strength was determined using a Charpy-type impact tester. The transverse strength and the flexural modulus were assessed with a three-point bending test. The results were subjected to statistical analysis using a one-way analysis of variance and the Scheffé test for comparison.
    RESULTS: The impact strength of the microwave-polymerized injection-molded polymer was 6.3 kl/m2, while its flexural strength was 66.2 MPa. These values were lower than those shown by the two compression-molded PMMA-based polymers. The differences were statistically significant. The flexural modulus of the new denture material was 2,832 MPa, which was higher than the conventional heat-polymerized polymer but was comparable to the other microwave-polymerized PMMA-based polymer. The difference in the flexural modulus was statistically significant.
    CONCLUSION: In terms of the impact and flexural strengths, the new microwave-polymerized, injection-molded, polyurethane-based polymer offered no advantage over the existing heat- and microwave-polymerized PMMA-based denture base polymers. However, it has a rigidity comparable to that of the microwave-polymerized PMMA polymer.
  9. The role of expressed breastmilk and continuous positive airway pressure as predictors of survival in extremely low birthweight infants
    Boo NY, Puah CH, Lye MS
    J Trop Pediatr, 2000 Feb;46(1):15-20.
    PMID: 10730035
    A case-control study was carried out on 152 extremely low birthweight (ELBW, < 1000 g) infants born consecutively in a large Malaysian maternity hospital during a 21-month period to determine the significant predictors associated with survival at discharge. Forty-nine (32.2 per cent) of these infants survived and 103 (67.8 per cent) died. The survivors weighed significantly heavier (mean = 888 g, SD = 99) than infants who died (mean = 763 g, SD = 131; p < 0.0001). They were also of higher gestational age (mean = 28.7 weeks, SD = 2.2) than those who died (mean = 26.7 weeks, SD = 2.5; p < 0.0001). Logistic regression analysis showed that, after controlling for various confounders, only three factors were significantly associated with the survival of these infants. These were: (1) increasing birthweight of the infants (with every gram increase in birthweight, adjusted odds ratio of survival was: 1.009; 95 per cent CI 1.004, 1.015; p = 0.0006); (2) given nasal continuous positive airway pressure for treatment of respiratory distress syndrome (adjusted odds ratio of survival: 4.2; 95 per cent CI 1.2, 14.0; p = 0.02); and (3) given expressed breastmilk (adjusted odds ratio of survival: 57.5; 95 per cent CI: 7, 474; p = 0.0002). Maternal illness, intrapartum problems, ethnicity, gestational age, use of antenatal steroid, modes of delivery, Apgar scores, congenital anomalies, respiratory distress syndrome, persistent ductus arteriosus, septicemia, necrotising enterocolitis, chronic lung disease, oxygen therapy, intermittent positive pressure ventilation, surfactant therapy, and blood transfusion were not significant factors associated with increased survival.
  10. Fulltext Childhood atopic dermatitis: a measurement of quality of life and family impact
    Aziah MSN, Rosnah T, Mardziah A, Norzila MZ
    Med J Malaysia, 2002 Sep;57(3):329-39.
    PMID: 12440273 MyJurnal
    Atopic dermatitis is the commonest skin disease in children, causing psychological, social and functional disability to them and their families. This study assessed the family impact and quality of life using the translated Malay version of The Dermatology Family Impact (DFI) and The Children's Dermatology Life Quality Index (CDLQI) questionnaires. Seventy-two children, aged between 6 months and 16 years attending the Paediatric Dermatology Clinic at the Paediatric Institute and the Dermatology Department, Hospital Kuala Lumpur participated in this study. Thirty-nine patients (54.2%) were males and 33 patients (45.8%) were females. The median age of the patients was 74 months (Q1 6, Q3 104 months). The median age of diagnosis was 22 months (Q1 1, Q3 36 months). The median disease duration was 44 months (Q1 3, Q3 65). The severity of eczema was assessed using the SCORAD severity index (maximum score = 83). The median SCORAD (European Task Force On Atopic Dermatitis) score was 36 (n = 72, SD = 16.2). The majority of patients in this study suffered from moderately severe eczema (n = 40, mean, SCORAD = 29.3) followed by severe eczema (n = 27, mean SCORAD = 54.3). The mildly affected patients formed the minority group (n = 5, mean SCORAD = 9.0). The family impact was shown to be greater in severe atopic dermatitis compared to moderate atopic dermatitis (Anova, p = 0.02). The children's quality of life impairment was also greater in severe atopic dermatitis compared to moderate atopic dermatitis (Anova p = 0.08). This study confirms that quality of life and family impact are related to the severity of atopic dermatitis.
  11. Fulltext Patient attendance at a major accident and emergency department: are public emergency services being abused?
    Azhar AA, Ismail MS, Ham FL
    Med J Malaysia, 2000 Jun;55(2):164-8.
    PMID: 19839143
    A total of 37,152 patients attended the Accident & Emergency (A&E) Department of Hospital Universiti Kebangsaan Malaysia (HUKM) from 1st January to 31st December 1998. Attendance during early hours (midnight to 0659 hrs.) constituted only 10.4% (3853 cases) whereas that for three other time periods of 0700-1159 hrs., 1200-1759 hrs., and 1800-2359 hrs. was 29.4% (10,927 cases), 30.8% (11,448 cases), and 29.4% (10,924 cases) respectively. Two hundred and fifty-one patients were direct admissions from other hospitals into our hospital wards and they attended the A&E department for registration purposes only. Of the remaining 36,901 that were triaged, 196 (0.5%) were resuscitation cases [Triage 1], 3648 (9.9%) were emergency cases [Triage 21, 18,935 (51.3%) were urgent cases [Triage 3], and 14,122 (38.3%) were non-urgent cases [Triage 4]. Despite fluctuations in monthly patient attendance, the proportions of patients according to time of attendance, age group, gender and triage categories remained similar throughout. As majority of patients attended during convenient hours (89.6% from 0700-2359 hrs.) and a high proportion of patients (38.3%) belonged to the non-urgent Triage category, we feel that public emergency services are possibly being abused.
  12. Fulltext Compliance with monitoring standards for anaesthesia in Malaysian hospitals
    Khoo TH, Cardosa MS, Inbasegaran K
    Med J Malaysia, 1999 Mar;54(1):72-8.
    PMID: 10972008
    The Malaysian Society of Anaesthesiologists published a document entitled "Recommendations for Standards of Monitoring during Anaesthesia and Recovery" in 1993. This paper examines the results of two surveys, carried out in 1995 and 1996 respectively; to determine compliance with published Monitoring Standards in Malaysian public and private hospitals. In the private sector, compliance with the recommended standards during anaesthesia varied greatly. Of the 28 government hospitals surveyed in 1996, compliance with monitoring standards during anaesthesia was almost 100%. Standards in recovery areas were less than ideal. The majority of anaesthesiologists thought that the current recommended standards were adequate.
  13. Changes in abundance and behaviour of vector mosquitoes induced by land use during the development of an oil palm plantation in Sarawak
    Chang MS, Hii J, Buttner P, Mansoor F
    Trans R Soc Trop Med Hyg, 1997 7 1;91(4):382-6.
    PMID: 9373626
    Surveys were conducted of adult and immature mosquitoes in an area undergoing oil palm development in north Sarawak. Point prevalence data from 2 sites were collected annually, coinciding with annual phases of forest clearing, burning/cultivation, and maintenance. Major habitat perturbation during the forest/clearing transition shifted the major mosquito faunal equilibrium in terms of species composition, relative density and occurrence. Analyses of variance showed that the mean numbers of 4 species of Anopheles decreased significantly after forest clearing. Relative densities of immature stages decreased after forest clearing, but A. letifer and Culex tritaeniorhynchus remained relatively unchanged after the second year. Comparisons with the pre-development forest stage showed that the reductions in person-biting rates, adult survival and combined entomological inoculation rates (EIR) of A. donaldi and A. letifer decreased the risk of malaria transmission by 90% over the 4 years period. Concomitant reductions in EIR and annual malaria incidence were also correlated. This study highlighted the 'law of unintended consequences', since 2 contrasting effects were observed: reduction of malaria vectors but concomitant increase of dengue vectors.
  14. Severe urological complication of leech bite in the tropics
    Hamid MS, Mohd Nor GR
    Br J Urol, 1996 Jan;77(1):164-5.
    PMID: 8653299
  15. Advances in health in Malaysia
    Suleiman AB, Lye MS, Mathews A, Ravindran J
    Med J Malaysia, 1995 May;50 Suppl A:S3-10.
    PMID: 10968005
  16. Risk factors associated with hearing loss in term neonates with hyperbilirubinaemia
    Boo NY, Oakes M, Lye MS, Said H
    J Trop Pediatr, 1994 Aug;40(4):194-7.
    PMID: 7932930
    A study of 128 jaundiced term neonates showed that 28 (22 per cent) had hearing loss based on brain stem-evoked response. There was no significant difference in the percentage of neonates with hearing loss between those with peak serum bilirubin levels of less than 340 mumol/l (16 per cent) and those with hyperbilirubinaemia > 339 mumol/l (33 per cent) (P = 0.11). Logistic regression analysis showed that severe jaundice which required exchange transfusion and earlier age of onset of hyperbilirubinaemia were statistically significant risk factors associated with hearing loss (P = 0.038 and P = 0.012, respectively).
  17. Risk factors for accidental poisoning in urban Malaysian children
    Azizi BH, Zulkifli HI, Kasim MS
    Ann Trop Paediatr, 1993;13(2):183-8.
    PMID: 7687115
    In a case control study, 70 children consecutively hospitalized for acute ingestion of poisons were compared with 140 other hospitalized children matched for age. Children aged less than 3 years and boys were most often the victims. Univariate analysis identified Indian race, having a parent younger than 21 years, residing at present address for less than 1 year and living in a household with more than five occupants as significant risk factors. Experience of a recent stressful event in the family barely failed to reach the level of significance. Logistic regression analysis confirmed that Indian race, having a parent younger than 21 years and residing less than 1 year at the present address were independent predictors of acute poisoning. Positive interactions were noted between Indian race and duration of residence and between parental age and duration of residence. Knowledge of risk factors and their interactions may be useful in planning preventive measures against childhood poisoning.
  18. Fulltext Hookworm infection and reinfection following treatment among Orang Asli children
    Norhayati M, Oothuman P, Fatmah MS, Muzain Minudin Y, Zainuddin B
    Med J Malaysia, 1995 Dec;50(4):314-9.
    PMID: 8668049
    In hookworm endemic areas where sanitation is often wanting, reinfection of treated children is a problem. This study was conducted to enumerate the prevalence and the reinfection rate of hookworm in 193 Orang Asli children following treatment with stat dose of 400mg of albendazole at 2 and 4 months post-treatment. All samples were examined using the Kato-Katz and Harada Mori techniques. The overall initial prevalence was 31.0%, with 27.0% in males and 34.0% in females although there was no statistical difference. Only 7.0% of the children had moderate intensity of infection. The overall infection rate at 2 and 4 months post-treatment was 11.0% and 8.0%. New cases were detected at 1.0% and 5.0% at 2 and 4 months post-treatment period. Reinfection rate 2 months post-treatment was 24.0%, and it was 30.0%, 4 months after treatment. All infection at 2 and 4 months post-treatment were light. Long-term strategies incorporating health education on personal hygiene, provision of toilets and safe water supply need to be adopted in these Orang Asli villages to control rapid reinfection.
  19. Malaria and filariasis transmission in a village/forest setting in Baram District, Sarawak, Malaysia
    Chang MS, Doraisingam P, Hardin S, Nagum N
    J Trop Med Hyg, 1995 Jun;98(3):192-8.
    PMID: 7783279
    Entomological investigations on malaria and bancroftian filariasis transmission were carried out in the endemic area of Baram District, Sarawak. The Anopheles composition, survival and infection rates of malaria and filariasis were compared in the village and 0.5 km from the village ecotype, in forested areas. Anopheles leucosphyrus, An. barbirostris and An. donaldi are the vectors for malaria and bancroftian filariasis in both ecotypes. Biting and infection rates vary, but An. leucosphyrus differed with a peak around midnight in the forested area and soon after dusk in the village setting. The parous rate of An. leucosphyrus was significantly higher in the forest ecotype (P < 0.0001); however, the proportion of 3-parous and older was not overall higher in the forest ecotype (P = 0.68). The entomological inoculation of malaria parasites by An. leucosphyrus was comparatively higher in the forested areas (P > 0.5). The implications of malaria and filariasis transmission in the forested areas in Baram District are discussed.
  20. Fulltext Circumstances surrounding accidental poisoning in children
    Azizi BH, Zulkifli HI, Kassim MS
    Med J Malaysia, 1994 Jun;49(2):132-7.
    PMID: 8090091
    Circumstances surrounding accidental ingestion of poisons were investigated in families of 70 hospitalised children. Indian children were more likely to be hospitalised for poisoning. Poor safety measures directly contributed to poisoning incidents. Poisons had not been stored safely and only in 12.9 per cent of families were the poisons allegedly kept in cupboards. Kerosene had been ingested from soft drink containers in 70 per cent of instances. Medications had been taken mainly from plastic envelopes (57.9%) or bottles (31.6%). Safety practices in the homes of cases and 140 controls were compared. As a whole parents of victims had poor safety practices when compared with parents of controls. Poisoning incidents were discovered by mothers in 75.0 per cent of the cases. Vomiting was induced by parents in 32.3 per cent of cases involving medications and non-volatile items, and in 41.6 per cent of kerosene ingestions. Before hospitalisation 59.4 per cent were brought to general practitioners and 22.7 per cent to government clinics. Mothers were the main attendants when children were brought for medical care. This study highlights the need for measures to prevent childhood poisoning and reduce its morbidity. Household products and medications should be made safer to children through improved packaging, prescribing instructions and education. Safety and first aid education may be directed towards parents, particularly mothers, through the media and health facilities.
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