Browse publications by year: 2021

  1. Sayfaldeen,Kashmoola,, Tengku,Fazrina,Tengku,Mohd,Ariff,
    Compendium of Oral Science, 2021;8(1):90-96.
    MyJurnal
    ABSTRACT
    Introduction: Facial defects can affect the appearance of an individual, resulting in psychological and social
    problems. In certain cases, surgical reconstruction of facial defects may not be feasible and prosthodontic
    rehabilitation may be the best option. Case description: A 72-years old gentleman was referred for the
    rehabilitation of a facial defect on the right side of his nose. The defect was affecting him psychologically and
    socially. The decision was made to construct a nasal prosthesis for him that would be retained by desirable
    undercuts and adhesive. Discussion: Management of facial defects are challenging due to multiple reasons such
    as matching of the prosthesis to surrounding skin and retention of the prosthesis. The prosthesis can be retained
    with implants, facial accessories, desirable undercuts, or adhesives. For this patient, the prosthesis was retained
    by using undercuts combined with medical-grade adhesive. A thin layer of flash at the edges of the prosthesis was
    maintained to ensure even finish margin. The prosthesis fabrication successfully resolved the patient’s condition.
  2. Najiyatu,Nazihah,Zakaria,, Saraswathy,Devi,Sinniah,, Annapurny,Venkiteswaran,
    Compendium of Oral Science, 2021;8(1):78-85.
    MyJurnal
    ABSTRACT
    Aim: To describe the distribution and association of dental and occlusal anomalies to gender in children of mixed
    and early permanent dentition. Methods: It is a cross-sectional study with stratified random sampling based on the
    main ethnic composition involving 413 subjects aged between 9 and 11 years old enrolled in 7 national primary
    schools in Sungai Buloh, Selangor. A calibrated operator carried out clinical examinations, and study models
    were fabricated. All dental and occlusal anomalies were recorded accordingly and were analysed using SPSS
    version 21.0. Pearson chi-square test was used to determine the gender-based differences for various parameters.
    Results: The reported dental anomalies were supernumeraries and clinically missing teeth (impacted or
    hypodontia) with a prevalence of 1.5% and 6.3%, respectively. The occlusal abnormalities were: crowding
    (54.0%), sagittal discrepancies (overjet; increased, reduced, and reversed overjet: 55.5%), vertical discrepancies
    (overbite; increased, reduced, and open bite: 37.5%) and transverse discrepancies (unilateral and bilateral
    posterior crossbite: 5.1%). Gender-based differences were not statistically significant to all reported dental and
    occlusal anomalies (p>0.05). Conclusions: Children in the mixed and early permanent dentition showed various
    dental and occlusal anomalies with crowding being the highest anomaly. Gender was not associated with any
    type of dental or occlusal characteristics in the studied population.
  3. Nur,Amni,Noor,Affendy, Syahirah,Mohd,Zol,, Nagham,M,Abdullah,Al,Jaf,, Mohamed,Ibrahim,Abu,Hassan,, Hazlina,Abdul,Ghani,, Indah,Yuri,Noviaranny,
    Compendium of Oral Science, 2021;8(1):70-75.
    MyJurnal
    ABSTRACT
    Aims: This study aims to evaluate the impact of the clinical teachers and the effectiveness of their supervisory
    skills in clinical settings from the dental students’ perception using the cognitive apprenticeship model. Materials
    and Methods: A total of 273 undergraduate clinical dental students, from Faculty of Dentistry UiTM, were asked
    to complete the modified and validated Maastricht Clinical Teaching Questionnaire (MCTQ) which consists of
    twenty-seven questions distributed on seven domains: Modelling, Coaching, Scaffolding, Articulation, Reflection,
    Exploration and General Learning Environment. The responses were descriptively analysed. Results: The clinical
    experience of 162 dental students, who responded, was evaluated. Overall, the students conveyed positive and
    neutral perceptions of their clinical experience in all criteria of the seven domains. Articulation domain showed
    the highest positive feedback (93.5%) while the general learning environment domain showed the highest negative
    feedback (28.1%). Conclusions: The clinical experience and the impact of the clinical teachers were mostly
    satisfactory. Further improvements of the clinical environment can be achieved regarding the areas of concern.
  4. Muhamad,Asyraf,Berhanuddin,, Afzan,Adilah,Ayoub,, Marlena,Kamaruzaman,, Izyan,Hazwani,Baharuddin,, Nurul,Fasiha,Mohamad,, Ikmal,Hisham,Ismail,
    Compendium of Oral Science, 2021;8(1):56-66.
    MyJurnal
    ABSTRACT
    Background: Electronic Apex Locators (EAL) has been increasingly used to facilitate working length
    determination in endodontics. This instrument is becoming more important to be used in addition to radiographs.
    A steep learning curve has existed between EAL use in the clinical, from the pre-clinical settings. Objectives:
    To fabricate a model that will facilitate dental students to use Electronic Apex Locator (EAL) in the dental
    simulation clinic and to conduct a questionnaire-based survey to investigate Electronic Apex Locator Model
    (EALM) effectiveness. Materials and Methods: Construction of model master jaw, EALM, using materials
    available in the prosthetic laboratory. The model can be mounted on the phantom head which when connected to
    an EAL will simulate its clinical use. A validated questionnaire was distributed to a group of n=10 pre-clinical
    students before and after demonstration conducted at the simulation clinic. Results: A prototype EALM was
    successfully fabricated at Universiti Teknologi MARA Dental Prosthetic Laboratory. with features incorporating
    conductive-media-chamber, with attached anatomically-correct fabricated model teeth. The teeth were constructed
    incorporating continuous access cavity, root canal, through to a patent apex. When attached to the jaw model, the
    electrical circuit was connected allowing EAL to function. Conclusion: EALM can be conveniently constructed at
    the Dental Prosthetic Laboratory by using materials readily available here. Furthermore, a steep learning curve
    exist between pre-clinical and clinical studies was bridged by the use this EALM and this allowed familiarity
    of clinical handling EAL. However, this study was limited by the small number of students exposed to this new
    method. Further prospective study is required by increasing the sample size to provide more significant results.
  5. Liyana,Ghazali,, Mohd,Yusmiaidil,Putera,Mohd,Yusof,, Noraina,Hafizan,Norman,
    Compendium of Oral Science, 2021;8(1):44-52.
    MyJurnal
    ABSTRACT
    Purpose: The purpose of this study was to investigate the effects of varying scanning parameters of DPT and LC
    on diagnostic performance and quality of the images. Materials and Methods: Clinical evaluations of image
    quality were performed using an adult human skull with permanent dentition. Dental panoramic tomogram (DPT)
    and lateral cephalogram (LC) images were obtained using two different radiographic machines Instrumentarium
    300OP taken at Sungai Buloh (SB) and Sirona Orthophos 3D taken at Puncak Perdana (PP) by varying tube
    voltages. Two orthodontic residents assessed images based on overall quality using a five-point rating scale
    and diagnostic performance by detection of anatomical landmarks. The correlations between radiation doses
    and diagnostic value of the images were analyzed using Pearson’s Correlation Test. Univariate analysis was
    calculated for the evaluation for image quality. Intra-class Correlation Coefficient (ICC) was used to test for
    intra-rater and inter-rater reliability. Results: Both modalities taken at both centers showed negative correlation
    between dosage and detection of anatomical landmarks except for LC SB. All images were rated at least with
    median of 3= more than adequately presented regardless of the radiation dosage except for DPT PP (median
    5= inadequately presented). Conclusion: Lower dosage parameters should be used when taking DPT and LC
    as images appeared darker, lower in quality and less anatomical landmarks can be detected at higher scanning
    parameter.
  6. Abdul,Halim,, Noor,, Mohd,Fadzilah,, Mohd,Said,, Abdul,Halim,
    Compendium of Oral Science, 2021;8(1):32-39.
    MyJurnal
    ABSTRACT
    Objectives: To evaluate the influence of music in reducing patients’ anxiety during periodontal surgery. Methods:
    This is a clinical trial of involving fifteen patients undergoing periodontal surgery. Patients indicated for
    periodontal surgery were invited to participate in the study, and randomly assigned to music (n=8) or control
    (n=7) groups. Participants’ dental anxiety were determined using the Corah Dental Anxiety Scale (CDAS) before
    and after the surgery, while their blood pressure (BP) and heart rate (HR) were recorded at pre-, intra- and
    post-procedures. Paired t-test was used to compare the statistical significant difference between pre- and postprocedural anxiety for both groups. Result: The participants of this study consist of 22 patients that underwent
    periodontal surgery procedures, with majority of the subjects (53.3%) were males (n=8) and the mean age was
    50.8 (SD=13.21). The measurement of blood pressure increased in patients allocated in music group compared
    to control group were statistically significant with (p
  7. Abdul,Halim,R,, Mohamad,H,A,, Zulkiflee,A,S,, Noor,E.
    Compendium of Oral Science, 2021;8(1):22-28.
    MyJurnal
    ABSTRACT
    Objective: To evaluate the effectiveness of hypnosis 1) to reduce dental anxiety in periodontal patients, and
    2) to increase periodontal patients’ compliance through the reduction of dental anxiety. Methods: This was a
    randomized control trial of 22 patients (13 males, 9 females; 40.14 ± 19.59 years) who underwent non-surgical
    periodontal therapy in the Postgraduate and Undergraduate Clinics. Patients were divided into the case, H,
    (hypnosis; n=11) and controlled, N, (no hypnosis; n=11) groups, where patients’ dental anxiety level was assessed
    twice for both groups using IDAF-4C+ during the first visit and the second visit. The compliance was evaluated
    during the follow-up visit. Results: The result showed statistically significant differences (p < 0.05) in the H
    group during the second visit indicating a reduction in dental anxiety as compared to N group. However, there
    were no statistically significant differences (p > 0.05) in the pattern of reduction of blood pressure between both
    case and control groups. Based on the heart rate, patients were found to be more relaxed with hypnotherapy
    at the beginning of the treatment but halfway through, patients without hypnotherapy had a more significant
    reduction in heart rate level. Conclusion: Hypnotic suggestions were found to help reduce patient’s fear and
    anxiety. However, the compliance of the patients with or without hypnotherapy proved to have a similar outcome.
  8. Norashikin,Yusof,, Luqman,Arif,Muhammad,Ghazali,, Nur,Shahirah,Zulkifle,
    Compendium of Oral Science, 2021;8(1):12-17.
    MyJurnal
    ABSTRACT
    Introduction: Early childhood caries (ECC) remains a major challenge among the 5-6 year olds in Malaysia
    with a caries prevalence of 71.3% as indicated in the last survey of preschool children in 2015. Studies have
    shown that behavior and income status can influence development of ECC. Objectives: The aim of this study
    was to measure the caries prevalence among 2 – 5 years old preschool children and to study the association of
    parents’ socio behavioral factors on ECC. Materials and methods: 140 preschool children participated in this
    study. Parents were given a set of structured questionnaires and oral examination was conducted on their children
    after receiving consent. Results: Findings showed prevalence of dental caries was 50.1% with mean dft score
    of 2.51. There was significant association between dental caries and children drinking formula milk and sweet
    drinks in their bottles: (p
  9. Suib F.N., Mohamed,Ismail I.E.S., Younis L.T., Bakri,N.N., Abu Hassan M.I.
    MyJurnal
    ABSTRACT
    Objectives: To evaluate the self-perceived preparedness of final year undergraduate dental students in Malaysia
    and to compare the difference of preparedness level of final undergraduate student in public and private
    universities. Material and Methods: A cross-sectional questionnaire study was conducted using a validated
    questionnaire, Dental Undergraduates Preparedness Assessment Scale (DU-PAS) and no samplings were involved.
    The questionnaire was distributed via University presentative of each university from MDSA in the form of online
    and written questionnaire. The data were analysed using SPSS version 23. Results: 239 students responded
    to this study. Responses revealed that student felt adequately prepared to carry out simple clinical procedures
    such as taking consent (88.3%), tooth-coloured fillings (87.4%), non-surgical periodontal treatment (86.6%), do
    proper history taking (85.8%), bitewing radiograph (84.1%) and communication skills (69.9%). However, low
    levels of scores were reported on ability to do an amalgam restoration (12.1%), endodontics treatment especially
    multi-rooted tooth (9.6%), crowns (9.2%), referral for suspected oral cancer (31.8%), research skills (15.1%)
    and raising concerns regarding inappropriate behaviour of colleagues (7.9%). There was significant difference
    between the level of preparedness of final undergraduate student in public and private universities. Conclusions:
    This is the first study of self-perceived preparedness of final year undergraduate students in Malaysia. The results
    showed that the self-perceived preparedness of final year student was satisfactory for a range of clinical and
    effective skills. However, several areas of weaknesses were identified which underscore the need for additional training and consolidation.
  10. Chiu CJ, Li ML, Chang CM, Wu CH, Tan MP
    BMC Geriatr, 2021 07 10;21(1):420.
    PMID: 34246236 DOI: 10.1186/s12877-021-02300-z
    BACKGROUND: Prolonged life expectancy is associated with increased prevalence of chronic diseases. The aim of this study was to determine the different disability trajectories for the top ten leading causes of death in Taiwan .

    METHODS: A total of 2,431 participants aged 50-96 in 1996 from the Taiwan longitudinal study on aging (TLSA) who died from 1996 to 2016 were analyzed. Integration of Cause of Death Data and TLSA helped sort out participants who had died from the ten leading causes of death. The level of physical disability was evaluated with the Activities of Daily Living Scale (ADLs), ranging from 0 to 6 points, in 1996, 1999, 2003, 2007, and 2011. A multilevel model was used to investigate the levels and rates of change in disability development before death.

    RESULTS: The outcome of the research showed that the earliest group to experience physical limitation was individuals living with diabetes. The groups with the highest ADL scores were participants with diabetes, cerebrovascular disease, and hypertension-related diseases. Most groups reach ADL scores ≥ 1 (mild-level) during 4-6 years before death except chronic hepatitis and cirrhosis and injury.

    CONCLUSIONS: People who had died from the ten leading causes of death experienced different disability trajectories before death. The trajectory of the participants who had died from diabetes showed a unique pattern with the earliest occurrence and more severe deterioration in terms of development of disabilities. Disability trajectories provide a prediction of survival status for middle-aged and older adults associated with the ten leading causes of death.

    MeSH terms: Activities of Daily Living*; Aged; Cause of Death; Disability Evaluation; Disabled Persons*; Humans; Longitudinal Studies; Middle Aged; Taiwan/epidemiology
  11. Ranganathan H, Singh DKA, Kumar S, Sharma S, Chua SK, Ahmad NB, et al.
    BMC Med Educ, 2021 Jul 10;21(1):376.
    PMID: 34246264 DOI: 10.1186/s12909-021-02803-8
    BACKGROUND: Online learning is an attractive option for educators, especially as means of overcoming the challenges posed by the global pandemic. Although it is best to evaluate student readiness prior to commencement of an online course, to ensure successful development and delivery of student-centric teaching and learning strategies, readiness towards online learning among physiotherapy undergraduates is unknown. The main aim of this study was to examine physiotherapy undergraduates' readiness towards online learning.

    METHODS: In this cross-sectional study, participants were selected through a combination of total population and convenience sampling. The Student Online Learning Readiness questionnaire was distributed among physiotherapy undergraduates from two public and two private universities in Malaysia to investigate their technical, social and communication competencies. Information about device characteristics were obtained to evaluate their equipment readiness. Descriptive and group comparisons were conducted using independent t-test, and analysis of variance with p  80% possessed smartphones and laptop) level of equipment readiness. Institution and gender had no significant effect on the level of readiness (p > 0.05). Year 1 and 2 had significantly higher levels of social competencies with instructor compared to final year physiotherapy undergraduates (p 

    MeSH terms: Cross-Sectional Studies; Humans; Malaysia; Students; Education, Distance*; Physical Therapy Modalities
  12. Lim H, Chuah JA, Chek MF, Tan HT, Hakoshima T, Sudesh K
    Int J Biol Macromol, 2021 Sep 01;186:414-423.
    PMID: 34246679 DOI: 10.1016/j.ijbiomac.2021.07.041
    Polyhydroxyalkanoates (PHAs) are biopolyesters synthesized by microorganisms as intracellular energy reservoirs under stressful environmental conditions. PHA synthase (PhaC) is the key enzyme responsible for PHA biosynthesis, but the importance of its N- and C-terminal ends still remains elusive. Six plasmid constructs expressing truncation variants of Aquitalea sp. USM4 PhaC (PhaC1As) were generated and heterologously expressed in Cupriavidus necator PHB-4. Removal of the first six residues at the N-terminus enabled the modulation of PHA composition without altering the PHA content in cells. Meanwhile, deletion of 13 amino acids from the C-terminus greatly affected the catalytic activity of PhaC1As, retaining only 1.1-7.4% of the total activity. Truncation(s) at the N- and/or C-terminus of PhaC1As gradually diminished the incorporation of comonomer units, and revealed that the N-terminal region is essential for PhaC1As dimerization whereas the C-terminal region is required for stabilization. Notably, transmission electron microscopy analysis showed that PhaC modification affected the morphology of intracellular PHA granules, which until now is only known to be regulated by phasins. This study provided substantial evidence and highlighted the significance of both the N- and C-termini of PhaC1As in regulating intracellular granule morphology, activity, substrate specificity, dimerization and stability of the synthase.
    MeSH terms: Acyltransferases/genetics; Acyltransferases/metabolism*; Acyltransferases/chemistry; Binding Sites; Inclusion Bodies/enzymology*; Inclusion Bodies/genetics; Inclusion Bodies/ultrastructure; Enzyme Stability; Structure-Activity Relationship; Substrate Specificity; Catalytic Domain; Betaproteobacteria/enzymology*; Betaproteobacteria/genetics; Betaproteobacteria/ultrastructure; Polyhydroxyalkanoates/metabolism*; Protein Multimerization; Protein Domains
  13. Saleem H, Khurshid U, Sarfraz M, Ahmad I, Alamri A, Anwar S, et al.
    Food Chem Toxicol, 2021 Sep;155:112404.
    PMID: 34246708 DOI: 10.1016/j.fct.2021.112404
    Capparis spinose L. also known as Caper is of great significance as a traditional medicinal food plant. The present work was targeted on the determination of chemical composition, pharmacological properties, and in-vitro toxicity of methanol and dichloromethane (DCM) extracts of different parts of C. spinosa. Chemical composition was established by determining total bioactive contents and via UHPLC-MS secondary metabolites profiling. For determination of biological activities, antioxidant capacity was determined through DPPH, ABTS, CUPRAC, FRAP, phosphomolybdenum, and metal chelating assays while enzyme inhibition against cholinesterase, tyrosinase, α-amylase and α-glucosidase were also tested. All the extracts were also tested for toxicity against two breast cell lines. The methanolic extracts were found to contain highest total phenolic and flavonoids which is correlated with their significant radical scavenging, cholinesterase, tyrosinase and glucosidase inhibition potential. Whereas DCM extracts showed significant activity for reducing power, phosphomolybdenum, metal chelation, tyrosinase, and α-amylase inhibition activities. The secondary metabolites profiling of both methanolic extracts exposed the presence of 21 different secondary metabolites belonging to glucosinolate, alkaloid, flavonoid, phenol, triterpene, and alkaloid derivatives. The present results tend to validate folklore uses of C. spinose and indicate this plant to be used as a potent source of designing novel bioactive compounds.
  14. Nagentrau M, Mohd Tobi AL, Jamian S, Otsuka Y, Hussin R
    J Mech Behav Biomed Mater, 2021 10;122:104657.
    PMID: 34246851 DOI: 10.1016/j.jmbbm.2021.104657
    Present research aims to develop a finite element computational model to examine delamination-fretting wear behaviour that can suitably mimic actual loading conditions at HAp-Ti-6Al-4V interface of uncemented hip implant femoral stem component. A simple finite element contact configuration model based on fretting fatigue experimental arrangement subjected to different mechanical and tribological properties consist of contact pad (bone), HAp coating and Ti-6Al-4V substrate are developed using adaptive wear modelling approach adopting modified Archard wear equation to be examined under static simulation. The developed finite element model is validated and verified with reported literatures. The findings revealed that significant delamination-fretting wear is recorded at contact edge (leading edge) as a result of substantial contact pressure and contact slip driven by stress singularity effect. The delamination-fretting wear behaviour is promoted under higher delamination length, lower normal loading with higher fatigue loading, increased porous (cancellous) and cortical bone elastic modulus with higher cycle number due to significant relative slip amplitude as the result of reduced interface rigidity. Tensile-compressive condition (R=-1) experiences most significant delamination-fretting wear behaviour (8 times higher) compared to stress ratio R=0.1 and R=10.
    MeSH terms: Hip Prosthesis*; Humans; Surface Properties; Titanium*; Elastic Modulus; Cortical Bone
  15. Forouhari A, Taheri G, Salari M, Moosazadeh M, Etemadifar M
    Mult Scler Relat Disord, 2021 Sep;54:103119.
    PMID: 34247103 DOI: 10.1016/j.msard.2021.103119
    BACKGROUND: Multiple sclerosis (MS) is an inflammatory demyelinating CNS disease and the most common neurological immune-mediated disorder. Due to its progressive format, it affects patients' quality of life (QoL) significantly. This study aimed to evaluate epidemiologic parameters of MS in the Asia and Oceania continents.

    METHODS: A comprehensive literature search on October 1st, 2020, was performed in PubMed, Scopus, and Web of Science to retrieve original population-based studies on MS epidemiology in the Asian and Oceanian countries, published between January 1st, 1985 and October 1st, 2020. The designed search strategy was repeated for each country, and the relevant referenced articles were added to our database. A random-effect model was used to combine the epidemiological estimates, and subgroup analysis was also performed by continent, region, and country, when possible. Meta-regression analysis was done to evaluate the effects of Human Developmental Index (HDI), latitude, and study period on the epidemiologic parameters.

    RESULTS: A total of 3,109 publications were found, of which 89 articles met the eligibility criteria and were included for data extraction. These articles provided data on prevalence, incidence, and mean age at disease onset in 18 countries in Asia and Oceania, including Iran, Turkey, Cyprus, Kuwait, Saudi Arabia, Qatar, UAE, Jordan, Israel, India, Malaysia, China, Hong Kong, Taiwan, Republic of Korea, Japan, Australia, and New Zealand. The pooled total prevalence, incidence, and mean age of onset in Asia and Oceania were 37.89/100000 (95% CI: 35.65 - 40.142), 2.40/100000 (95% CI: 2.22 - 2.58), and 28.21 (95% CI: 27.55 - 28.88), respectively. MS prevalence and incidence in the female gender (68.7/100000 and 4.42/100000, respectively) were infinitely higher than in the male gender (24.52/100000 and 2.06/100000, respectively). Our subgroup analysis showed that MS was much more prevalent in Australia and West Asia among the studied area. The meta-regression showed that the total incidence decreased with an increase in the HDI, and the total prevalence in Asia increased with increasing latitude gradients. Also, the study period had a positive effect on the total prevalence and incidence in Asia and Oceania.

    CONCLUSION: MS prevalence and incidence have increased in recent decades. This study highlights the need for further studies to elucidate MS's geographical and temporal variations' exact etiologies.

    MeSH terms: Asia/epidemiology; Female; Humans; Male; Quality of Life*; Incidence; Oceania/epidemiology
  16. Kurien M, Teo R, Zainuddin K, Azidin AM, Izaham A, Budiman M, et al.
    Clin Ter, 2021 Jul 05;172(4):278-283.
    PMID: 34247211 DOI: 10.7417/CT.2021.2332
    Objective: We compared sonoanatomy of the internal jugular vein (IJV) the high (HA), conventional (CA) and the medial oblique approach (MA) to identify the best approach and head position for IJV cannulation.

    Materials & Methods: Total of 45 volunteers aged 18-65 years were included in this study. The degree of overlap in percentage, depth of IJV from skin, antero-posterior (AP) and transverse diameters (TD) of IJV were measured in real time with ultrasound (US). Measurements were taken in the HA, CA and MA in neutral and 30° head rotation on both the right and left side of the neck.

    Results: The HA had lower percentage of overlap when compared to CA and MA in neutral and 30° head rotation (p= 0.002 to ≤0.001). The IJV was more shallow in the CA and MA. The AP and TD of the IJV were larger in the MA when compared to HA (p=<0.001) and CA (p =0.026 to < 0.001) and the right IJV has a larger AP and TD in all approaches.

    Discussion: The HA had the least percentage of overlap compared to CA and MA, therefore the risk of accidental ICA puncture can be reduced. The apparent overlap seen in MA may not reflect the actual scenario because of the way the US beam cuts the vessel. The AP and TD of IJV were significantly increased in the MA, which would ease CVC.

    Conclusion: We conclude and recommend the medial oblique probe position with 30° head rotation provides optimal real time sonographic parameters for US guided IJV cannulation.

    MeSH terms: Adolescent; Adult; Aged; Catheterization, Central Venous/methods*; Female; Humans; Jugular Veins/anatomy & histology*; Male; Middle Aged; Prospective Studies; Rotation*; Ultrasonography/methods*; Young Adult
  17. Guraya SS, Guraya SY, Yusoff MSB
    BMC Med Educ, 2021 Jul 12;21(1):381.
    PMID: 34247617 DOI: 10.1186/s12909-021-02802-9
    BACKGROUND: Despite a rapid rise of use of social media in medical disciplines, uncertainty prevails among healthcare professionals for providing medical content on social media. There are also growing concerns about unprofessional behaviors and blurring of professional identities that are undermining digital professionalism. This review tapped the literature to determine the impact of social media on medical professionalism and how can professional identities and values be maintained in digital era.

    METHODS: We searched the databases of PubMed, ProQuest, ScienceDirect, Web of Science, and EBSCO host using (professionalism AND (professionalism OR (professional identity) OR (professional behaviors) OR (professional values) OR (professional ethics))) AND ((social media) AND ((social media) OR (social networking sites) OR Twitter OR Facebook)) AND (health professionals). The research questions were based on sample (health professionals), phenomenon of interest (digital professionalism), design, evaluation and research type. We screened initial yield of titles using pre-determined inclusion and exclusion criteria and selected a group of articles for qualitative analysis. We used the Biblioshiny® software package for the generation of popular concepts as clustered keywords.

    RESULTS: Our search yielded 44 articles with four leading themes; marked rise in the use of social media by healthcare professionals and students, negative impact of social media on digital professionalism, blurring of medical professional values, behaviors, and identity in the digital era, and limited evidence for teaching and assessing digital professionalism. A high occurrence of violation of patient privacy, professional integrity and cyberbullying were identified. Our search revealed a paucity of existing guidelines and policies for digital professionalism that can safeguard healthcare professionals, students and patients.

    CONCLUSIONS: Our systematic review reports a significant rise of unprofessional behaviors in social media among healthcare professionals. We could not identify the desired professional behaviors and values essential for digital identity formation. The boundaries between personal and professional practices are mystified in digital professionalism. These findings call for potential educational ramifications to resurrect professional virtues, behaviors and identities of healthcare professionals and students.

    MeSH terms: Professionalism*; Health Personnel; Humans; Professional Misconduct; Social Networking; Social Media*
  18. Endersby-Harshman NM, Ali A, Alhumrani B, Alkuriji MA, Al-Fageeh MB, Al-Malik A, et al.
    Parasit Vectors, 2021 Jul 12;14(1):361.
    PMID: 34247634 DOI: 10.1186/s13071-021-04867-3
    BACKGROUND: Dengue suppression often relies on control of the mosquito vector, Aedes aegypti, through applications of insecticides of which the pyrethroid group has played a dominant role. Insecticide resistance is prevalent in Ae. aegypti around the world, and the resulting reduction of insecticide efficacy is likely to exacerbate the impact of dengue. Dengue has been a public health problem in Saudi Arabia, particularly in Jeddah, since its discovery there in the 1990s, and insecticide use for vector control is widespread throughout the city. An alternative approach to insecticide use, based on blocking dengue transmission in mosquitoes by the endosymbiont Wolbachia, is being trialed in Jeddah following the success of this approach in Australia and Malaysia. Knowledge of insecticide resistance status of mosquito populations in Jeddah is a prerequisite for establishing a Wolbachia-based dengue control program as releases of Wolbachia mosquitoes succeed when resistance status of the release population is similar to that of the wild population.

    METHODS: WHO resistance bioassays of mosquitoes with deltamethrin, permethrin and DDT were used in conjunction with TaqMan® SNP Genotyping Assays to characterize mutation profiles of Ae. aegypti.

    RESULTS: Screening of the voltage-sensitive sodium channel (Vssc), the pyrethroid target site, revealed mutations at codons 989, 1016 and 1534 in Ae. aegypti from two districts of Jeddah. The triple mutant homozygote (1016G/1534C/989P) was confirmed from Al Safa and Al Rawabi. Bioassays with pyrethroids (Type I and II) and DDT showed that mosquitoes were resistant to each of these compounds based on WHO definitions. An association between Vssc mutations and resistance was established for the Type II pyrethroid, deltamethrin, with one genotype (989P/1016G/1534F) conferring a survival advantage over two others (989S/1016V/1534C and the triple heterozygote). An indication of synergism of Type I pyrethroid activity with piperonyl butoxide suggests that detoxification by cytochrome P450s accounts for some of the pyrethroid resistance response in Ae. aegypti populations from Jeddah.

    CONCLUSIONS: The results provide a baseline for monitoring and management of resistance as well as knowledge of Vssc genotype frequencies required in Wolbachia release populations to ensure homogeneity with the target field population. Vssc mutation haplotypes observed show some similarity with those from Ae. aegypti in southeast Asia and the Indo-Pacific, but the presence of the triple mutant haplotype in three genotypes indicates that the species in this region may have a unique population history.

    MeSH terms: Aedes/drug effects*; Aedes/genetics*; Animals; Biological Assay/methods; Biological Assay/statistics & numerical data; Dengue/prevention & control; Dengue/transmission; Female; Insecticide Resistance/genetics*; Insecticides/pharmacology*; Mosquito Control/methods; Mosquito Control/statistics & numerical data; Mutation*; Pyrethrins/pharmacology*; Saudi Arabia; Sodium Channels/genetics*; Wolbachia/physiology*
  19. Ong T, Sahota O
    Injury, 2021 Oct;52(10):2903-2907.
    PMID: 34247765 DOI: 10.1016/j.injury.2021.06.028
    INTRODUCTION: Patients that require hospital admission for vertebral fragility fractures were older, multimorbid, frail, have cognitive impairment and were in severe pain. This study aimed to describe the hospital treatment received in one UK university hospital with the purpose of proposing what hospital services should look like.

    METHOD: This was an observational study of adults aged 50 years and over admitted to hospital over 12 months with an acute vertebral fragility fracture. Information was collected from patients and electronic health records on their presentation and hospital care.

    RESULTS: 90 patients were recruited into the study. 69% presented to hospital 24 h after the onset of their severe acute back pain. 38% had a concomitant medical diagnosis, such as an ongoing infection. X-ray of the spine was the most common imaging of choice to diagnose a fracture. There was variation in the content of the radiology reports. 46% or patients were managed on geriatric medicine wards, 39% on general medical wards, and followed by 14% on spinal surgical wards. Patients cared for by medical teams were older, frailer, had a higher prevalence of cognitive impairment, more dependent for daily living and less mobile compared to those under the care of the spinal surgical team. Many patients on medical wards had input from spinal surgical team and vice versa. 9% proceeded to have vertebral augmentation. Despite many in severe pain, only a third were prescribed opioids with the median dose of morphine-equivalent was 10-20 mg daily for the first three days of admission. While in hospital, 31% developed a medical complication, with infection being the most common one. On discharge, 76% still required opioids and only 56% had a plan for their bone health.

    DISCUSSION: Improvements could be made to hospital vertebral fracture care. Many did not receive adequate pain relief and appropriate assessments to reduce their future fall and fracture risk. Most were medically managed. Quality standards and re-organising care in hip fracture has led to improved outcomes. A similar approach in vertebral fragility fractures might also deliver improved outcomes.

    MeSH terms: Aged; Great Britain/epidemiology; Hip Fractures*; Hospitals, University; Humans; Middle Aged
  20. Hariri F, Farhana NA, Abdullah NA, Ibrahim N, Ramli NM, Mohd Abdullah AA, et al.
    J Craniomaxillofac Surg, 2021 Dec;49(12):1175-1181.
    PMID: 34247917 DOI: 10.1016/j.jcms.2021.06.017
    The aim of this study was to compare optic canal parameters of syndromic craniosynostosis patients with those of normal patients to visit the possibility of optic nerve impingement as a cause of visual impairment. Computed tomography scan images were processed using the Materialise Interactive Medical Image Control System (MIMICS) Research 21.0 software (Materialise NV, Leuven, Belgium). Eleven optic canal parameters were measured: 1) height of optic canal on the cranial side, 2) height of optic canal on the orbital side 3) length of the medial wall of the optic canal, 4) length of the lateral canal wall of the optic canal, 5) diameter of the optic canal at five points (Q1-Q4 and mid canal), and 6) area and perimeter of optic canal. These measurements were obtained for both the right and left optic canals. The study sample comprised four Crouzon syndrome, five Apert syndrome, and three Pfeiffer syndrome patients. The age of these syndromic craniosynostosis patients ranged from 2 to 63 months. The height of the optic canal on the orbital side (p = 0.041), diameter of the mid canal (p = 0.040), and diameter between the mid-canal and the cranial opening (Q3) (p = 0.079) for syndromic craniosynostosis patients were statistically narrower compared with those of normal patients when a significance level of 0.1 was considered. Scatter plots for the ages of patients versus the above parameters gave three separated clusters that suggested the arresting of optic canal development with age. The findings from this study demonstrated a narrowing of the optic canal in syndromic craniosynostosis patients, and indicate that optic canal anatomical characteristics may have an association with visual impairment among pediatric syndromic craniosynostosis patients.
    MeSH terms: Child; Child, Preschool; Humans; Infant; Sphenoid Bone; Tomography, X-Ray Computed
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