Displaying publications 1 - 20 of 27 in total

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  1. Sivarajasingam M, Rajan P
    Otol Neurotol, 2007 Sep;28(6):869-70.
    PMID: 17435522
  2. Chew CC, Rajan P
    Malays J Med Sci, 2021 Feb;28(1):117-119.
    PMID: 33679228 DOI: 10.21315/mjms2021.28.1.15
    During the coronavirus disease 2019 (COVID-19) pandemic, the use of ultraviolet (UV) rays to disinfect skin areas, clothes and other objects at the entry/exit points of public spaces has been widely discussed by stakeholders. While ultraviolet germicidal irradiation (UVGI) has been shown to effectively inactivate coronaviruses, including severe acute respiratory syndrome coronavirus (SARS-CoV)-1 and Middle East respiratory syndrome coronavirus (MERS-CoV), no specific evidence proves that it effectively inactivates the new SARS-CoV-2 virus that causes COVID-19. Because UV rays damage human tissue, UVGI should be used with caution and not directly on human skin. Various guidelines recommend that UVGI should not be used as a sole agent for disinfecting surfaces or objects but as an adjunct to the latest standard disinfecting procedures.
  3. Mann GS, Rajan P, Sawali H
    Med J Malaysia, 2021 08;76(Suppl 4):39-41.
    PMID: 34558557
    No abstract provided.
  4. Sundaram SS, Rajan P, Balasubramanian A
    BMJ Case Rep, 2014;2014.
    PMID: 24980993 DOI: 10.1136/bcr-2013-200637
    Infratemporal fossa abscess is a rare and challenging condition to diagnose and manage. A few reported cases have been mostly due to odontogenic infections and were managed by external or intraoral drainage. This is the first reported case of an infratemporal fossa abscess that was successfully managed by endoscopic drainage via a transmaxillary approach.
  5. Sabirin J, Abd Rahman M, Rajan P
    ISRN Otolaryngol, 2013;2013:586973.
    PMID: 23984101 DOI: 10.1155/2013/586973
    The safety, efficacy, and economic implications of using transnasal oesophagoscopy (TNE) are compared with conventional rigid or flexible oesophagoscopy for oesophageal disorders in otorhinolaryngology (ORL) clinics in this systematic review. Eleven electronic databases were searched for articles on transnasal oesophagoscopy. A total of 67 relevant titles were identified and 39 abstracts were screened of which 17 full- text articles were included in this report. There was fair level of evidence to suggest that TNE was effective for screening examination in patients with dysphagia, globus pharyngeus, and reflux symptoms and for detection of metachronous oesophageal carcinoma. TNE can also be used to biopsy suspicious lesions in the upper aerodigestive tract, placement of wireless pH capsule, transnasal balloon dilation of the oesophagus, secondary tracheoesophageal puncture, and management of foreign bodies. TNE was well tolerated and can be safely performed in an office setting with topical anaesthesia. Complications associated with TNE were mild and uncommon. There was evidence to suggest potential cost savings by performing TNE in the office setting compared with conventional investigation and examination for dysphagia. TNE may lead to a change in practice from investigation and treatment in the operating theatre or day care center to an office-based practice.
  6. Chang CT, Rajan P, Hoe VCW
    Malays J Med Sci, 2021 Jun;28(3):151-154.
    PMID: 34285653 DOI: 10.21315/mjms2021.28.3.14
    Protecting healthcare workers (HCWs) who are in the frontline during the time of the COVID-19 pandemic is paramount. The filtering facepiece respirators (FFRs) or N95 respirator is one of the personal protective equipment (PPE) used to protect HCWs exposed to airborne pathogens in clinical practice or when performing aerosol generating procedures. The FFRs should be able to serve the intended purpose without causing additional health and safety hazards for the HCWs. The following commentary will provide some basic information on selecting correct FFRs and conducting fitness test.
  7. Boo WH, Rajan P, Ching SM, Lee PY
    Malays Fam Physician, 2015;10(2):45-8.
    PMID: 27099660 MyJurnal
    Juvenile recurrent respiratory papillomatosis (JRRP) is a rare condition. The varied presentation of this condition predisposes to misdiagnosis and potential life-threatening airway obstruction. In this paper, we have reported a case of JRRP presenting as severe respiratory distress and consequently mistreated as asthmatic attack culminating in a near fatal acute airway obstruction.
  8. Jahendran J, Sani A, Rajan P, Mann GS, Appoo B
    Asian J Surg, 2005 Jan;28(1):41-4.
    PMID: 15691797
    A pyolaryngocele is an uncommon complication of a laryngocele that has become infected. We present a case of a pyolaryngocele that was probably due to repeated injections in the neck veins. The pathogenesis, clinical features and management are discussed in detail.
  9. Balasubramanian A, Shah JR, Gazali N, Rajan P
    BMJ Case Rep, 2017 Oct 09;2017.
    PMID: 28993356 DOI: 10.1136/bcr-2017-221269
    Severe extensive deep neck abscess in an infant is uncommon. We share the case of a previously well 4-month old infant who was referred for a 4-day history of fever, lethargy and left lateral neck swelling. Contrast-enhanced CT scan revealed a large 5.3×8 cm collection involving the left parapharyngeal and retropharyngeal space, causing significant airway narrowing. 40 mL of frank pus was drained via intraoral incision and drainage with the aid of endoscope, and undesirable complications from an external approach were averted. The infant was extubated 48 hours postsurgery and was discharged home well after completion of 1 week of intravenous antibiotics. The child was discharged well from our follow-up at 1 month review. We discuss the pathophysiology of deep neck space abscesses, its incidence in the paediatric population and the various management options.
  10. Chang CT, Teoh SL, Rajan P, Lee SWH
    Res Social Adm Pharm, 2023 Aug;19(8):1146-1156.
    PMID: 37277240 DOI: 10.1016/j.sapharm.2023.05.017
    BACKGROUND: Explicit potentially inappropriate medications (PIM) criteria are commonly used to identify and deprescribe potentially inappropriate prescriptions among older patients. Most of these criteria were developed specifically for the Western population, which might not be applicable in an Asian setting. The current study summarizes the methods and drug lists to identify PIM in older Asian people.

    METHODS: A systematic review of published and unpublished studies were carried out. Included studies described the development of explicit criteria for PIM use in older adults and provided a list of medications that should be considered inappropriate. PubMed, Medline, EMBASE, Cochrane CENTRAL, CINAHL, PsycINFO, and Scopus searches were conducted. The PIMs were analyzed according to the general conditions, disease-specific conditions, and drug-drug interaction classes. The qualities of the included studies were assessed using a nine-point evaluation tool. The kappa agreement index was used to evaluate the level of agreement between the identified explicit PIM tools.

    RESULTS: The search yielded 1206 articles, and 15 studies were included in our analysis. Thirteen criteria were identified in East Asia and two in South Asia. Twelve out of the 15 criteria were developed using the Delphi method. We identified 283 PIMs independent of medical conditions and 465 disease-specific PIMs. Antipsychotics were included in most of the criteria (14/15), followed by tricyclic antidepressants (TCAs) (13/15), antihistamines (13/15), sulfonylureas (12/15), benzodiazepines (11/15), and nonsteroidal anti-inflammatory drug (NSAIDs) (11/15). Only one study fulfilled all the quality components. There was a low kappa agreement (k = 0.230) between the included studies.

    CONCLUSION: This review included 15 explicit PIM criteria, which most listed antipsychotics, antidepressants, and antihistamines as potentially inappropriate. Healthcare professionals should exercise more caution when dealing with these medications among older patients. These results may help healthcare professionals in Asian nations to create regional standards for the discontinuation of potentially harmful drugs for elderly patients.

  11. Kumareysh VV, Kumarasamy G, Letchumanan P, Rajan P, Md Shukri N
    Indian J Otolaryngol Head Neck Surg, 2023 Apr;75(Suppl 1):1053-1055.
    PMID: 37206833 DOI: 10.1007/s12070-023-03611-w
    Rhinolith is an uncommon condition that usually happens due to mineralisation of calcium and magnesium salts over a retained foreign body inside the nasal cavity for long period of time. Here we report one such case of a 33-year-old lady who presented to us with long standing intermittent epistaxis and on examination rhinolith was discovered.
  12. Chew CC, Lim XJ, Chang CT, Rajan P, Nasir N, Low WY
    BMC Public Health, 2021 09 06;21(1):1623.
    PMID: 34488693 DOI: 10.1186/s12889-021-11679-8
    BACKGROUND: Social stigma against persons infected with COVID-19 is not uncommon. This qualitative study aimed to explore the experience of social stigma among COVID-19 positive patients and their family members.

    METHOD: This cross-sectional study was conducted between April to June 2020 in Malaysia. Patients who have recovered from COVID-19 for at least 1 month and their family members who were tested with negative results, Malaysian and aged 18-65 years old were purposively sampled. Cold call method was employed to recruit patients while their family members were recruited by their recommendations. Telephone interviews were conducted with the participants after obtaining their verbal consent.

    RESULTS: A total of 18 participants took part in this study. Three themes emerged from the interviews: (Ι) experience of stigmatization, (ΙΙ) perspective on disease disclosure, and (ΙΙΙ) suggestion on coping and reducing stigma. The participants expressed their experiences of being isolated, labelled, and blamed by the people surrounding them including the health care providers, neighbours, and staff at the service counters. Some respondents expressed their willingness to share their experience with others by emphasizing the importance of taking preventive measure in order to stop the chain of virus transmission and some of them chose to disclose this medical history for official purpose because of fear and lack of understanding among the public. As suggested by the respondents, the approaches in addressing social stigma require the involvement of the government, the public, health care provider, and religious leader.

    CONCLUSION: Individuals recovered from COVID-19 and their families experienced social stigma. Fear and lack of public understanding of the COVID-19 disease were the key factors for non-disclosure. Some expressed their willingness to share their experience as they perceived it as method to increase public awareness and thereby reducing social stigma. Multifaceted approaches with the involvement of multiple parties including the government, non-governmental organization as well as the general public were recommended as important measures to address the issues of social stigma.

  13. Tao CC, Lim XJ, Amer Nordin A, Thum CC, Sararaks S, Periasamy K, et al.
    Trop Med Health, 2022 Nov 21;50(1):87.
    PMID: 36404319 DOI: 10.1186/s41182-022-00479-4
    The World Health Organization declared monkeypox as a Public Health Emergency of International Concern on July 23, 2022. As of July 25th, 2022, there were 16,016 laboratory-confirmed cases reported worldwide with 5 deaths. Malaysia's Health Ministry has developed a five-point strategy to prepare for the impending threat of the infectious disease, encompassing early detection of monkeypox, consolidation of laboratory diagnostic facilities, case management and treatment, cluster management, and strengthening public awareness. Crisis and disaster preparedness within a nation's health system is paramount to preventing disease spread. Various strategies for developing resilience in the face of global infectious disease spread were discussed. The current disease preparedness and response framework and guidelines in Malaysia have established a health system that is proactive and responsive to any potential infectious disease outbreaks. Despite this, the future remains unpredictable, and ongoing fortification is required as events unfold.
  14. Chew CC, Lim XJ, Letchumanan P, Narayanan MS, Rajan P, Chong CP
    J Pharm Policy Pract, 2023 Oct 04;16(1):116.
    PMID: 37794504 DOI: 10.1186/s40545-023-00625-1
    BACKGROUND: Patient education is identified as one of the core and fundamental management strategies in the management of allergic rhinitis. The Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines developed guidance for the management of allergic respiratory disease, and the guidelines are applicable to the international context. The ARIA guidelines for the pharmacy have specifically encouraged the creation of local pharmacist-led intervention in allergic rhinitis management. This study aims to develop a pharmacist-led educational model using a multi-phase study approach.

    METHOD: In phase one, we conducted a literature review using four databases to extract relevant articles and clinical practice guidelines published between 2017 and 2022. The information was structured into a questionnaire consisting of patient education material (10 domains with 130 items) and pharmacist counseling scopes (15 domains with 43 items), with each item having a rating scale ranging from 1 (lowest) to 9 (highest) level of agreement. Fifty-two panellists, including otorhinolaryngologists and pharmacists, were invited to complete the questionnaire. A consensus agreement was considered when at least 70% of panellists scored 7 to 9 (critically important). A two-round survey was conducted, and descriptive analysis, inter-rater reliability (≥ 0.5-1 indicate moderate to excellent reliability), variation in the relative interquartile (VRIR 

  15. Chew CC, Lim XJ, Low LL, Lau KM, Kari M, Shamsudin UK, et al.
    PLoS One, 2022;17(3):e0265917.
    PMID: 35320328 DOI: 10.1371/journal.pone.0265917
    Indigenous peoples in Peninsular Malaysia, known as Orang Asli, have been associated with the problem of malnutrition. Approximately 40% of their children are underweight. Indigenous peoples' distinct social, cultural, and economic traits, which differ from those of the dominant communities in which they live, may pose significant challenges for health care providers (HCPs) in addressing the malnutrition issue. This study explores challenges encountered by HCPs, with at least six months of experience in monitoring the growth parameters of Orang Asli children residing in Perak State in Peninsular Malaysia. A cross-sectional study was conducted between December 2020 and June 2021, involving three focus group discussions and three in-depth interviews. Thematic analysis was used. A total of 19 participants (6 nurses, 5 nursing managers, 4 medical officers, 2 nutritionists, a family medicine specialist, and a paediatrician) took part in this study. The challenges were summarized into four themes: (I) accessibility to nutrition, (II) accessibility to healthcare services, (II) skills of HCPs, and (IV) challenges of implementing nutrition programs. The inability of the Orang Asli children to access nutritious food was due to poverty, different perceptions of life priorities, and the practice of food taboos among the communities. Inadequate infrastructure and transportation discourage parents from bringing their children to healthcare facilities. The belief in and preference for traditional healing, the practice of semi-nomadic lifestyles, and fear of HCPs and their timid nature were factors that prevented Orang Asli children from accessing healthcare services. HCPs need to equip themselves with cross-cultural communication and interaction skills and adapt their skills to environmental challenges to overcome unexpected encounters in mobile clinics. The non-exposed food items, the risk of food basket sharing with other family members, and community feeding programs' coordination were the challenges to be addressed when implementing nutrition programmes for Orang Asli children. The challenges of HCPs are multifactorial and require a multifaceted approach. There is a need for joint efforts of stakeholders, from communities and non-governmental organisations (NGOs) to the health authorities, to address the challenges of HCPs.
  16. Chew CC, Lim XJ, Narayanan MS, Letchumanan P, Rajan P, Chong CP
    PMID: 37362103 DOI: 10.1007/s12070-023-03896-x
    AIMS: This study aims to determine the trend of allergic rhinitis (AR) prevalence in a tertiary hospital between 2017 and 2022, and to compare its prevalence pre- and post-COVID-19 pandemic.

    METHODS: This was a cross-sectional study involving the extraction of all Malaysian patients' medical records who were diagnosed with AR and attended the otorhinolaryngology outpatient clinic of a government-funded tertiary hospital in Malaysia between 2017 and 2022.

    RESULTS: 3,744 cases out of the 57,968 first-encounter outpatient visits to the otorhinolaryngology clinic were extracted for analysis. Overall, the prevalence of AR cases ranged from 1.83 to 9.23% between 2017 and 2022. There was a significant drop of 21.38 to 70.22% between the pre- and post-COVID-19 pandemic (p

  17. Chew CC, Lim XJ, Letchumanan P, George D, Rajan P, Chong CP
    Trials, 2024 Apr 25;25(1):279.
    PMID: 38664701 DOI: 10.1186/s13063-024-08111-y
    BACKGROUND: Allergic rhinitis is a chronic respiratory disorder that significantly impacts patients' quality of life (QoL) and work performance. Pharmacists are recognized as suitable professionals to provide patient education and pharmaceutical care for managing allergic rhinitis patients. However, local clinical practice guidelines, particularly regarding pharmaceutical care in public healthcare institutions, are lacking. This study protocol outlines a randomized controlled trial (RCT) designed to evaluate the effectiveness of a pharmacist-led educational model (AR-PRISE Model) in managing allergic rhinitis in adult patients compared to standard pharmaceutical care. The AR-PRISE model delivers patient educational material and a pharmaceutical care algorithm.

    METHOD: This is a 6-month, single-center, prospective, randomized, two-arm, and parallel-group controlled trial. The trial recruits patients attending the otorhinolaryngology clinics of a tertiary referral hospital. Participants are randomized into control or intervention groups in a 1:1 ratio using permuted block randomization. The total number of participants estimated is 154, with each group requiring 77 participants. The control group receives standard pharmaceutical care, while the intervention group receives pharmacist-led education according to the AR-PRISE model. Both groups are assessed for middle turbinate endoscopy findings, disease severity, knowledge level, symptom control, medication adherence, and QoL at baseline and the end-of-study follow-up (day 180 ± 7). Depending on feasibility, intermediate follow-ups are conducted on days 60 ± 7 and 120 ± 7, either virtually or face-to-face. During intermediate follow-ups, participants are assessed for symptom control, medication adherence, and QoL. The intention-to-treat analysis includes all participants assigned to each group. An independent T-test compares the mean difference in knowledge level between the two groups. A two-way repeated measures ANOVA analysis is employed to determine between-group differences for scores of symptom control, adherence rate, and QoL. A P-value 

  18. Diong SH, Mohd Yusoff NS, Sim MS, Raja Aziddin RE, Chik Z, Rajan P, et al.
    J Anal Toxicol, 2014 Nov-Dec;38(9):660-6.
    PMID: 25106416 DOI: 10.1093/jat/bku096
    Gas chromatography-mass spectrometry quantitative method was developed to monitor concentrations of methadone and its metabolite 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP) in plasma and urine of patients. The developed method was simple, accurate and reproducible to quantify methadone and EDDP in plasma and urine samples in the concentration range of 15-1,000 and 50-2,000 ng/mL, respectively. The proposed analytical method was applied to plasma and urine samples obtained from 96 patients undergoing methadone maintenance treatment (MMT) with daily methadone doses of 2-120 mg/day. Urinary methadone excretion was observed to be significantly affected by pH, in which the ratio of methadone to EDDP was two times higher in acidic urine (P = 0.029). The findings of this study further enhance the guidelines for monitoring of methadone treatment among outpatients. Methadone-to-EDDP ratio in urine was found to be consistent at 24 and 4 h, hence suggesting the possibility that outpatients may be monitored with single urine sample in order to check for compliance. This study which provides data on peak concentrations of methadone and EDDP as well as the ratio of both compounds has added to the body of knowledge regarding pharmacokinetic properties of methadone among heroin-dependent patients under MMT.
    Study site: University Malaya Medical Centre (UMMC), HKL, University Malaya Centre for Addiction Sciences (UMCAS) and Rehabilitation Centre of Al-Rahman Mosque, Kuala Lumpur, Malaysia
  19. Chew CC, Chang CT, Lim XJ, Yong WY, George D, Letchumanan P, et al.
    J Pharm Policy Pract, 2022 Nov 08;15(1):80.
    PMID: 36348443 DOI: 10.1186/s40545-022-00477-1
    Allergic rhinitis has been identified as a major respiratory disease that places a significant burden on patients and the healthcare system. Nevertheless, the management of allergic rhinitis is challenging for both patients and practitioners. Pharmacists have been recognised as strategic in providing advice for allergic avoidance, disease information, and pharmacological care for allergic rhinitis management. This role has been underutilised in the public health service sector in Malaysia due to variation in practice, regulation, and health system structures when compared to the international guidelines. This article proposed a PhaRmacISt-led Education Model (AR-PRISE) that includes explicit patient education materials and an algorithm for structured counselling by pharmacists in the management of patients with allergic rhinitis.
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