Bisecting-angle-technique is a method used to improve patient comfort during periapical radiography. This technique is usually performed without X-ray beam aiming device and has been commonly associated with dental radiographic error. The use of external marker as a beam aiming device in bisecting-angle-technique is potentially effective to reduce the number of errors occurring during periapical radiography. In this study, 240 periapical radiographs were taken by undergraduate dental students. Periapical radiographs were taken using traditional method of bisecting-angle-technique (BAT), bisecting-angle-technique with the use of external marker (BAT-M) and the standard method in periapical radiography; paralleling technique (PT). All radiographic images were evaluated and errors were classified and tabled according to the type and number of errors. Chi-square test was used to compare the total number of radiographic errors made using these three techniques. One of the most common errors with BAT was cone cut error (13.8%). This error had been markedly reduced to 1.3% and 2.5% by implementation of BAT-M and PT, respectively. The total number of errors was also found to be significantly lesser for BAT-M compared to BAT, p< 0.05.
Keywords: errors, dental, radiography
Psoriasis imposes a great economic burden as a result of higher expenditures for different interventions, diagnostic procedures, pharmaceuticals and loss of productivity. Less is known about the economic impact of psoriasis treatment in Asean region. The aim of this research was to calculate the costs associated with four psoriasis treatment modalities. A prospective cohort study was conducted in five hospitals involving 91 moderate to severe psoriasis patients. Costs were calculated from the societal perspective using the principle of Step Down and Activity Based Costing (ABC) within a six (6) months follow-up duration. The components of the costs borne by the provider were inpatient cost, cost of medication, laboratory investigation and radiology. Patient’s cost included out of pocket expenses, travelling cost and loss of productivity. Cost per patient per day was RM1,105.24 (inpatient) (US$315.94) and RM298.02 (outpatient) (US$85.19). Medication accounted for almost 90% (RM457,014.00) (US$130 638.45) of the total provider cost. Meanwhile, loss of productivity represented 84% (RM167,439.00) (US$47,862.80) of the total patient’s cost. Biologic treatment exhibited the highest cost which was RM342,377.00 (US$97,869.21), followed by systemic treatment (RM105,607.00) (US$30,187.99), topical treatment (RM38,280.00) (US$10,942.42) and topical phototherapy treatment (RM21,824.00) (US$6,238.44). Understanding the relationship between direct and indirect costs from both perspectives is important to accurately identify and evaluate effective treatment for psoriasis.
Primary thyroid lymphoma is a rare disorder accounting for about 2% of all malignant lymphomas and less than 5% of thyroid malignancies. It is an aggressive disease with poor outcome. The majority of thyroid lymphomas are non-Hodgkin lymphomas of Bcell origin. Majority of cases occur in women in the sixth decade. We report two cases of primary thyroid lymphoma and highlight the clinical issues and challenges posed by this rare disease. Both cases presented with respiratory obstructive symptoms that required surgical intervention. The optimal management for a primary thyroid lymphoma be it chemotherapy, radiotherapy, surgery or monoclonal antibodies is still debatable. The role for surgery has evolved through the years but its importance in emergency situations should not be overlooked. Both our patients had to undergo surgery but only one patient received additional chemotherapy and radiotherapy. These two case reports illustrated the difficulties in managing this rare disorder.
Centrifugation of blood samples to produce platelet-poor plasma is one of the important steps for coagulation testing. Reduction of the time required for specimen processing without affecting quality of results should be ideal for tests which require immediate results. Centrifugation of platelet-poor plasma (3580 rpm) for 15 minutes performed for routine coagulation tests would prolong the turn-around time for an urgent test (30 minutes). This study was done to determine the effect of reducing centrifugation time for routine coagulation tests in order to meet the turn-around time (TAT) for urgent tests. Seventy-nine blood samples sent for routine coagulation tests, were assayed for prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen level and platelet counts, using two different centrifugation speed for plasma preparation: centrifugation at 3580 rpm for 15 minutes and rapid centrifugation at 4000 rpm for five minutes. Paired sample t-test showed that there was a significant
difference in the platelet count between the two groups (p=0.001). However, there was no significant difference in the normal APTT (p=0.16), abnormal APTT (p=0.80), abnormal PT (p=0.43) and the results of fibrinogen levels (p=0.36). In conclusion, rapid centrifugation at 4000 rpm for five minutes does not modify results of routine coagulation tests (PT, APTT and fibrinogen). It would be beneficial in providing rapid results for urgent coagulation tests.
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common enzyme deficiency worldwide including Malaysia. Screening of cord blood for partial G6PD deficiency is important as they are also prone to develop acute haemolysis. In this study, we determined the prevalence of partial G6PD deficient in paediatric population aged 1 month-12 years and normal term female neonates using OSMMR-D kit with haemoglobin (Hb) normalization and compare it with florescence spot test (FST). A total of 236 children, aged between between 1 month-12 years and 614 normal term female neonates were recruited for this study. Determination of normal means for G6PD activity and; cut-off points for partial and severe deficiency were determined according to WHO Working Group (1989). Determination of prevalence for partial deficiency for both groups (female patient) was done using this enzyme assay kit and findings were compared with FST. In this study, 15.7% (18/115) female children were classified as partial G6PD deficient by quantitative enzyme method (G6PD activity: 4.23-5.26U/gHb). However, FST only detected 0.9% (1/115) with minimal G6PD activity. The prevalence of partial G6PD deficiency in female neonate group was 3.42% (21/614) by enzyme assay versus 0.49% (3/614) by FST. This study concluded that our routine screening method using FST was unable to diagnose female heterozygotes. We recommend using this quantitative enzyme assay method by OSMMR-D kit since it was more sensitive in detecting G6PD deficiency in female neonates compared to FST.
We report two cases of biphenotypic acute leukaemia diagnosed in Hospital Universiti Kebangsaan Malaysia (HUKM), their clinical, haematological characteristics and response to chemotherapy. Both patients are middle-aged ladies who presented with hepatosplenomegaly and high white cell count, mainly composed of blast cells. Their bone marrow aspirations were hypercellular comprising of more than 90% heterogenous blast cells. Cytochemical analyses show more than 3% positivity towards peroxidase, with smaller blasts showing block positivity towards PAS. Immunophenotypically, the blasts showed dual expression of CD 33 and CD 19, CD 19 and CD34, intra CD22, intra TdT and intraMPO. One of the patients showed presence of the Philadelphia chromosome on cytogenetic analysis which was confirmed by Fluorecsence In Situ Hybridisation (FISH). Molecular analysis also showed presence of the BCR-ABL fusion protein. Both patients were given combination chemotherapy consisting of daunorubicin and cytosine arabinoside.However, the patient with positive Philadelphia chromosome BCR-ABL did not achieve morphological remission after induction chemotherapy. In view of the poor prognosis of this disease, both the patients were planned for upfront peripheral blood stem cell transplantation.
Residual disease in patients with acute leukaemia indicates unfavorable prognosis. The evaluation of remission using flow cytometry allows a better estimation of minimal residual disease (MRD) after induction chemotherapy in childhood acute lymphoblastic leukaemia (ALL) cases. Patients in morphological marrow remission with presence of blast cells of less than 5%, may still have up to 1010 leukaemic cells. However with flow cytometric analysis, lower levels of the residual leukaemic cells (1 in 104 cells) can be detected and it can be used as a tool to predict relapse. This study compared the presenting clinical and haematological features of children with ALL and their residual disease status determined by flow cytometry. Analysis of their MRD status following remission-induction chemotherapy were done at day-28, week-12 and week-20. The cases were also followed up to five years, to determine their survival status. Their residual disease status by flow cytometric immunophenotyping was also compared with their bone marrow findings morphologically. Thirty-eight cases of precursor B-ALL in pediatric patients from UKM Medical Centre (UKMMC) were analyzed. There was no significant correlation between demographic, clinical and haematological features with MRD status at day-28. However, there was a significant correlation between MRD status by flow cytometry and by morphological marrow examination at week-12. Three cases showed persistent MRD findings until week-20 where two of the cases relapsed and died subsequently. Twenty four patients were still alive after five years of follow up.
Micro computed tomography (micro-CT) imaging is a useful tool to monitor fracture
healing in osteoporosis model. It creates a 3-D image of the fracture callus which can
be analysed to assess bone parameters quantitatively. In this study, micro-CT was
used to assess the fracture healing of orchidectomised rats, an androgen-deficient
osteoporosis model. The effects of Eurycoma longifolia, a medicinal plant with proandrogenic
effects, on fracture healing were assessed. The rats were grouped into
orchidectomised-control (ORX), sham-operated (SHAM), orchidectomised and
injected with testosterone intramuscularly once weekly (TEN) and orchidectomised
and daily oral gavage of Eurycoma longifolia (EL). Treatment duration was six
weeks following bone fracture. Fracture was induced in the right tibia of all the
rats. A total of 100 axial slices above and below fracture line were scanned with
a micro-CT. The micro-CT analysis was able to detect significant difference in the
fracture healing rate of ORX and TEN groups. The bridging cortices and fraction
of mineralized tissue of the bridging cortices of the callous of ORX group was
significantly lower than TEN group. No significant micro-CT changes were seen
in the fracture healing of the EL group. The effect of EL on fracture healing was not
demonstrable in orchidectomised rat model.
The uses of Complementary and Alternative Medicine (CAM) among patients with chronic diseases are becoming increasingly popular. This was a descriptive cross-sectional study conducted in 45 government health clinics across Negeri Sembilan. Respondents at diabetes clinics were selected via systematic random sampling and interviewed using structured questionnaire. CAM usage was divided into three groups; CAM use for diabetes (CAM-DM), CAM use for general health (CAM-G) and Non CAM user. The prevalent use of CAM among type II diabetes mellitus patients in Negeri Sembilan was 58.5% (CAM-DM: 40.6% and CAM-G: 17.9%). For CAM-DM group, bitter gourd (Momordica charantia) was the most popular CAM consumed to help control diabetes, while supplement milk was the most popular choice for the CAM-G group. In conclusion, the use of CAM among type II diabetes mellitus patients in Negeri Sembilan was common. Natural products are the main choice of CAM modality used to help with the management of diabetes. Majority of CAM users never informed their healthcare providers about their CAM use.
Study site: 45 klinik kesihatan, Negeri Sembilan, Malaysia
Globally, stroke is the commonest cause of long-term disability. The residual disabilities among post stroke patients affect their daily living activities. The aim of rehabilitation therapy is to help stroke survivors to gain back their functional ability. The present study aimed to determine the relationship between post stroke duration with functionality status of post-stroke survivals at a teaching hospital in Kuala Lumpur. A cross-sectional study involved one hundred nine five post stroke patients who attended the Rehabilitation Clinic over a 4-month period. The data on post stroke duration was reveale from patient’s cleckship. Their functional status was assessed with Modified Barthel Index (MBI). Results showed the mean age of participants was 61 years (SD=13.86, range:22-87 years), with 118 males and 81 females having a median duration of 12 months post-stroke (range: 1-79 months). The prevalence 123 (63.1%) of stroke survivors are found to be dependent in their daily living activity. A Chi-square test for independence indicated there was significant relationship between post-stroke duration with levels of functioning, χ2 (2 , n=195) = 6.455, p<0.05,phi = 0.182. Patients in post-stroke duration of 13-24 months were independent (52.1) than ≤ 12 months and ≥ 24 months.
Keywords: functional status, post-stroke disability, mbi, activities of daily living, rehabilition therapy
Study site: rehabilitation clinic , Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM)
Stroke is frequently associated with long-term disability. Stroke leads to high risk of physical and neuropsychological consequences. Residual disabilities among post-stroke survivors can lead them to depression. This study aimed to determine the relationship between clinical characteristics and the levels of depression among post-stroke survivors at a teaching hospital in Kuala Lumpur. This cross-sectional study recruited 195 post-stroke survivors who attended follow-up Rehabilitation Clinic of a teaching hospital over a study period of 4 months. Information collected included socio-demographic, clinical characteristics (post stroke duration, stroke types and stroke severities) and level of depression. Beck’s Depression Inventory (BDI) was used to assess the level of depression. The mean age of participants was 61 years (SD=13.86, range: 22-87 years), with 118 male and 81 female survivors having a median duration of post-stroke of 12 months (range: 1-79 months). This study showed post stroke survivors 116 (59.5%) with depression. A Chi-square test for level of stroke severity was significantly associated with depression, χ2 (2,n=195) = 28.724, p
Information technology use in healthcare education has become a popular
medium of instruction. One of the medium of instruction is video assisted learning
(VAL). The use of VAL as an instructional method in the teaching and learning of emergency skills is not new. However, there are lack of studies on the perception of
using this method in learning emergency skills. This qualitative study involved four
focused discussion groups following a VAL instruction on emergency skills. A total
of 20 paramedics were divided into four groups. They were involved in a focussed
discussion after a VAL instruction session. Findings reveal that the paramedics
perceived three major themes which were categorized as : i) advantages of video
as teaching tool, ii) barrier in using video as a teaching tool; and iii) suggestions on
using video as teaching tool. The findings indicate that the paramedics perceived
VAL as a potential tool for learning emergency skills. However, they suggested the
language of instruction should be in their mother tongue for better understanding.
This implies that using English language has disadvantage in technology enhanced
learning for better understanding.
Access to an intravenous (IV) route is very crucial in emergency patients under resuscitation. The difficulty to access and administer fluid and drugs through intravenous will influence the outcome of patient. In case of unavailable of intravenous route, the alternative is intraosseous access. To date, there is no data available on the prevalence and pattern of intraosseous cannulation knowledge among emergency paramedics in the published literature from our country, even though the use of intraosseous cannulation for emergency patients is being practices. Therefore, the purpose of the present study was to determine the level of knowledge regarding intraosseous cannulation among emergency paramedics. The knowledge related to intraosseous cannulation among emergency paramedics was assessed through structured validated test questions. Fifteen paramedics participated in this study. Majorities of participants were male (86.6%). The age group ranged from 22 – 45 old years. The working experiences were from two to thirteen years. There was only 1 out of 15 participants who had scored 75%. The majority (10) scored 40% to 50%. This suggests that necessity in teaching of intraosseous cannulation among emergency paramedics needs to be emphasised.
A retrospective case series review was conducted to determine the pre-operative role and safety of pre-operative adjunctive anti-vascular endothelial growth factor (anti- VEGF) agent ranibizumab “LUCENTISTM” in patients with diabetic retinopathy requiring vitrectomy. The study involved twenty consecutive eyes of sixteen patients (age range: 46-72 years; mean 57.5 years) which received intravitreal injection of 0.5 - 1 mg of ranibizumab 3 to 8 days (mean 4.4 days) prior to vitrectomy for diabetic retinopathy. There were no local or systemic post-injection complications. Indications for vitrectomy were retinal detachment (RD) [n=11; 3 combined tractional (TRD) - rhegmatogenous RD (RRD), 8 TRD], TRD with vitreous haemorrhage (VH) (n=3) ,VH (n=8) and vitreomacular traction syndrome (n=1). Inclusion criteria include all consecutive eyes of diabetic patients requiring vitrectomy receiving a first pre-operative injection of anti- VEGF. Pre-operative visual acuity (VA) ranged from 6/36 to light perception. All eyes had minimal to moderate intraoperative bleeding. Post-operative VH in eyes without tamponade or gas tamponade was nil (n=1), mild (n=13) or moderate (n=1). Silicone filled eyes had nil (n=1), moderate (n=3) or severe haemorrhages (n=1). Post-operative VA was unchanged (n=2) (10%), improved (n = 14) (70%) or worsened (n=4). VA was 2/60 or better (n=15) to no light perception (n=1). Two eyes achieved 6/12 or better vision (10%). Ten eyes (50%) had 6/36 or better vision. In conclusion, pre-operative intravitreal ranibizumab is safe and useful in diabetic vitrectomy and appears to help with perioperative bleeding leading to improvement in vision.
Many anatomical variations exist in and around the carpal tunnel. However, symptomatic anomalies causing carpal tunnel syndrome is rare. Additionally, carpal tunnel surgery is considered a simple operation commonly done by junior surgeons who are usually unaware of variations resulting in unfavorable surgical outcomes. We highlight a case of lumbrical muscle variation causing carpal tunnel syndrome. A 73-year-old male presented with numbness and pain of both hands associated with abnormal fullness over both wrists and distal forearms. Initially the right hand was numb and subsequently a year later, the left hand became numb. Physical examination was positive for Durkan, Phalen and Tinel signs at the carpal tunnel. Magnetic Resonance Imaging (MRI) showed abnormal muscle tissues in the carpal tunnel. During the carpal tunnel release and exploratory surgery, we noted an abnormally proximal origin of the lumbrical muscles in the forearm rather than the typical palmar origin. He also had lumbrical muscle hypertrophy in the left side. These two factors resulted in overcrowding within the carpal tunnel. Post-operatively the patient recovered well with pain relief and gradual improvement of his numbness. Variations in the anatomy of the lumbrical muscles is not uncommon and may result in carpal tunnel syndrome. Hence, carpal tunnel release surgeries may not be as straight forward as expected and surgeons should be aware of this possibility.
The primary objective of the present study was to investigate the impact of sociodemographic factors on smoking and alcohol consumption among adults in Penang (Malaysia). A cross-sectional primary survey data with 398 respondents was used for analysis. The present study applied logistic regression models to examine the factors affecting the odds of smoking and alcohol consumption. The results showed that gender, ethnicity and education could significantly affect smoking. In particular, males (OR: 26.678) had a higher likelihood of smoking compared to the females, whereas Chinese (OR: 0.177), Indians/others (OR: 0.331) and individuals with tertiary education (OR: 0.258) had a lower likelihood of smoking than others. In terms of alcohol, gender, ethnicity and marital status were found to have a significant influence on the likelihood of alcohol consumption. Specifically, males (OR: 5.051), Chinese (OR: 37.796) and Indians/others (OR: 10.863) were more likely to consume alcohol than others, while married individuals (OR: 0.380) were less likely to consume alcohol than unmarried individuals. Based on the findings of the present study, numerous population-based intervention measures were suggested.
Hypertension has been recognised as an important public health issue, affecting paediatric population. This study aimed to determine the prevalence of hypertension and its relationship with obesity among different ethnic, gender primary school children in Kuching division, Sarawak. It was a cross-sectional study using multistage sampling. Data was collected using anthropometric equipment and digital blood pressure monitor. Data was analysed using SPSS version 20. A total of 1314 respondents participated. 36.9% of the respondents were overweight and obese, 31% were overfat and obese, 29% had abnormal waist circumference and 32.8% had abnormal waist-height ratio (WHtR). About 22.1% of the respondents were found to be in pre-hypertension and hypertension stage. There were significant differences in overweight and obese, overfat and obese, WHtR between males and females. Indigenous Sarawak reported to have the highest number of hypertensive at risk, overweight and obese, overfat and obese, abnormal waist circumference and WHtR. Those respondents who were hypertensive were found to be overweight and obese, overfat and obese, with abnormal waist circumference and WHtR. Screening of potential risk factors at a young age would help to reduce the incidents of chronic disease in the adulthood. Blood pressure measurement should be included in the routine physical examination, to identify high risk children for further investigation.
Infection by hepatitis B virus (HBV) is a major global health-care problem. HBV is an accepted factor in the elevated risks for liver disease such as cirrhosis and development of hepatocellular carcinoma. This problem is particularly prevalent in the Asia-Pacific region which includes Malaysia. During infection, the hepatitis B e antigen (HBeAg) is produced in the hosts. This antigen is an important serological marker for diagnosing chronic hepatitis B. Seroconversion to anti-body (anti-HBe) corresponds to the improvement of disease prognosis. However, certain mutations such as the core promoter dual mutations (A1762G1764→T1762A1764), the codon 15 variants (C1858/ T1858) and the precore stop codon mutations (TGG→TAG) can affect the HBeAg expression. This has diagnostic and clinical implications. Besides that, the HBV can be grouped into eight genotypes (A to H). Moreover, genotypic subtypes and recombinants have been observed as well. Studies have observed that these can differ in their affiliations with the mutations above as well as with disease prognosis.
'Carotid-cavernous fistula' (CCF) boleh berlaku secara spontan atau akibat kecederaan. Disebabkan komplikasi pada mata, proses mengenalpasti penyakit dan rawatan tidak harus ditangguhkan. Kami ingin melaporkan satu kes di mana seorang wanita tua yang mengalami kemerahan mata dan kemudiannya mata menjadi semakin bengkak. Beliau disyaki menghidapi penyakit CCF tetapi pemeriksaan imbasan tomografi berkomputer pada otak dilaporkan normal. Pesakit kemudiannya dijadualkan untuk cerebral angiografi dan beliau dikenalpasti menghidap penyakit CCF. Malangnya, pesakit tersebut mengalami komplikasi seperti retinopati stasis vena dan glaukoma neovascular disebabkan rawatan tergendala. Penglihatan beliau tidak dapat disembuhkan walaupun rawatan agresif telah diberikan. Kes ini bertujuan untuk menekankan kepentingan mengesyaki sesuatu penyakit melalui pemeriksaan klinikal walaupun dengan imbasan imej yang normal. Ini adalah untuk mengelakkan komplikasi seperti kebutaan yang tidak dapat disembuhkan.
This report stresses on the occurrence of a rare adverse reaction to clozapine, i.e. allergic cutaneous and visceral angioedema, in a patient with treatment resistant schizophrenia (TRS). We report the case of a schizophrenic patient who was resistant to treatment and developed an allergic reaction involving her skin and gastro-intestinal system upon the commencement of clozapine. She was then treated with a combination pharmacotherapy which left some residual symptoms. The manifestation of allergic reactions to clozapine and its management strategies are discussed in the paper. There is a pressing need to develop a new psychotropic which is on par with clozapine.
Keywords: allergy, angioedema, clozapine, schizophrenia