Vinod Pallath

Dr. Vinod Pallath


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 October 2023 in BMC Medical Education
Verified
Journal Article
Open access
PDF file
SLSiaw Cheok Liew
Siaw Cheok Liew
MTMaw Pin Tan
Maw Pin Tan
EBEmer Breen
Emer Breen
KKKuhan Krishnan
Kuhan Krishnan
ISInthirani Sivarajah
Inthirani Sivarajah
VPVinod Pallath
Vinod Pallath
Background: Virtual consultation is a synchronous mode of telemedicine provided remotely via information and communication technology. The projected growth of digitalization in healthcare delivery, however, necessitates medical student training in virtual consultation (VC) to ensure safe and effective patient care. This study describes the implementation and preliminary evaluation of a competency-based VC training module for undergraduate medical students. Methods: A newly developed six-week VC module was implemented online through asynchronous microlearning and synchronous simulation-based experiential learning modalities. Clinical students in years 4 and 5 and fresh graduates, who had not started pre-registration house officer or residency programmes, were invited to participate. Training outcomes using checklist-based video-recorded assessments of VC encounters between medical students and simulated patients were compared. Each video was independently assessed by two facilitators trained in VC teaching and assessment, using a direct observed virtual consultation skills checklist derived from established VC competencies. The participants completed course evaluations electronically as additional outcome measures. Results: Fifty-two clinical phase medical students and alumni completed both the instructional and practical phases of this module. Altogether, 45 (95.7%) students found the module beneficial, and 46 (95.9%) reported increased self-efficacy for conducting VC. In total, 46 (95.9%) students would recommend the course to others. Post-test results showed a significant increase in the students’ abilities to conduct a VC (t-test = 16.33, p < 0.05). Conclusion: Microlearning and simulation-based sessions were effective instructional delivery modalities for undergraduate medical students in their attainment of VC competencies.

6 May 2022 in PLOS ONE
Verified
Journal Article
Open access
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LMLalitha Maniam
Lalitha Maniam
KVKumutha Malar Vellasamy
Kumutha Malar Vellasamy
HJHassan Mahmood Jindal
Hassan Mahmood Jindal
VNVallikannu Narayanan
Vallikannu Narayanan
MDMahmoud Danaee
Mahmoud Danaee
VPVinod Pallath
Vinod Pallath
Asymptomatic bacteriuria (ASB) caused byEscherichia coli (E.coli)is a significant condition associated with pregnancy and is considered as prognostic for the development of symptomatic urinary tract infection (UTI). However, treating all ASB increases the use of antibiotics and leads to the development of multidrug resistance (MDR). Therefore, this study aimed to identify the distribution of UPEC associated virulence genes and antibiotic susceptibility among phylogroups ofE.coliisolated from ASB in pregnancy. Moreover, the gene expression of selected virulence genes was also compared among twoE.coliisolates (with different pathogenic potential) to determine its pathogenicity. One hundred and sixtyE.coliisolates from midstream urine samples of pregnant women with ASB were subjected to PCR-based detection for its phylogroups and virulence genes. The antibiotic susceptibility of isolated strains was determined by the disc diffusion method. Expression of the virulence genes were determined through microarray analysis and quantitative Real-Time PCR. The prevalence of ASB in this study was 16.1%. Within ASB isolates, the occurrence of phylogroup B2 was the highest, and isolates from this group harboured most of the virulence genes studied. Overall, the most identified virulence genes among all phylogroups in descending order werefimH,chuA,kpsMTII,usp,fyuA,hlyA,iroN,cnf,papC,sfa,ompT, andsat. In this study, higher resistance to antibiotics was observed for ampicillin (77.5%), amoxicillin-clavulanate (54.4%), trimethoprim-sulfamethoxazole (46.9%) and amikacin (43.8%) compared to the other tested antibiotics and 51.9% of the tested isolates were MDR. Furthermore, hierarchical clustering and gene expression analysis demonstrated extreme polarization of pathogenic potential ofE.colicausing ASB in pregnancy necessitating the need for bacterial isolate focused approach towards treatment of ASB.

20 June 2023 in PeerJ
Verified
Journal Article
Open access
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LMLalitha Maniam
Lalitha Maniam
KVKumutha Malar Vellasamy
Kumutha Malar Vellasamy
TOTeng Aik Ong
Teng Aik Ong
CTCindy Shuan Ju Teh
Cindy Shuan Ju Teh
KJKartini Abdul Jabar
Kartini Abdul Jabar
VPVinod Pallath
Vinod Pallath
Background: Uropathogenic Escherichia coli (UPEC) is the predominant agent causing various categories of complicated urinary tract infections (cUTI). Although existing data reveals that UPEC harboured numerous virulence determinants to aid its survival in the urinary tract, the reason behind the occurrence of differences in the clinical severity of uninary tract infections (UTI) demonstrated by the UPEC infection is poorly understood. Therefore, the present study aims to determine the distribution of virulence determinants and antimicrobial resistance among different phylogroups of UPEC isolated from various clinical categories of cUTI and asymptomatic bacteriuria (ASB) E. coli isolates. The study will also attempt a relational analysis of the genotypic characteristics of cUTI UPEC and ASB E. coli isolates. Methods: A total of 141 UPEC isolates from cUTI and 160 ASB E. coli isolates were obtained from Universiti Malaya Medical Centre (UMMC). Phylogrouping and the occurrence of virulence genes were investigated using polymerase chain reaction (PCR). Antimicrobial susceptibility of the isolates to different classes of antibiotics was determined using the Kirby Bauer Disc Diffusion method. Results: The cUTI isolates were distributed differentially among both Extraintestinal Pathogenic E. coli (ExPEC) and non-ExPEC phylogroups. Phylogroup B2 isolates were observed to possess the highest average aggregative virulence score (7.17), a probable representation of the capability to cause severe disease. Approximately 50% of the cUTI isolates tested in this study were multidrug resistant against common antibiotics used to treat UTI. Analysis of the occurrence of virulence genes among different cUTI categories demonstrated that UPEC isolates of pyelonephritis and urosepsis were highly virulent and had the highest average aggregative virulence scores of 7.80 and 6.89 respectively, compared to other clinical categories. Relational analysis of the occurrence of phylogroups and virulence determinants of UPEC and ASB E. coli isolates showed that 46.1% of UPEC and 34.3% of ASB E. coli from both categories were distributed in phylogroup B2 and had the highest average aggregative virulence score of 7.17 and 5.37, respectively. The data suggest that UPEC isolates which carry virulence genes from all four virulence genes groups studied (adhesions, iron uptake systems, toxins and capsule synthesis) and isolates from phylogroup B2 specifically could predispose to severe UTI involving the upper urinary tract. Therefore, specific analysis of the genotypic characteristics of UPEC could be further explored by incorporating the combination of virulence genes as a prognostic marker for predicting disease severity, in an attempt to propose a more evidence driven treatment decision-making for all UTI patients. This will go a long way in enhancing favourable therapeutic outcomes and reducing the antimicrobial resistance burden among UTI patients.

29 November 2025 in BMC Medical Education
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Journal Article
Open access
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PFPaul Douglas Fullerton
Paul Douglas Fullerton
VNVan Nguyen
Van Nguyen
VPVinod Pallath
Vinod Pallath
MSMahbub Sarkar
Mahbub Sarkar
Feedback is recognised as key to learning and development of health professionals. However, most literature regarding this originates in Western contexts,

7 January 2026 in Pathogens
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Journal Article
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Kartini Abdul JabarKartini Abdul Jabar
Kartini Abdul Jabar
NRNur Izzatul Auni Romli
Nur Izzatul Auni Romli
KVKumutha Malar Vellasamy
Kumutha Malar Vellasamy
VPVinod Pallath
Vinod Pallath
Anis Rageh Mohammed Al-MalekiAnis Rageh Mohammed Al-Maleki
Anis Rageh Mohammed Al-Maleki
Pseudomonas aeruginosa bloodstream infections (PABSIs) are a major clinical challenge due to their association with significant mortality and antimicrobial resistance mechanisms. The COVID-19 pandemic changed antimicrobial practices, intensive care management, and patient risk profiles, potentially influencing the epidemiology and outcomes of PABSIs. In the post-pandemic period, practices were expected to revert to normal. The objective of this scoping review was to identify and summarize reported mortality rates and risk factors for PABSIs in studies published between 2023 and 2025. Literature searches were conducted across PubMed, Web of Science, Embase, and Scopus. Screening was performed in accordance with PRISMA-ScR guidelines. Twenty-two eligible studies were included. Mortality rates varied across the study setting and populations; however, several consistent predictors were consistently identified, including carbapenem exposure, multidrug-resistant Pseudomonas aeruginosa, hematologic disease or malignancy, corticosteroid therapy, sepsis or septic shock, mechanical ventilation, and higher severity-of-illness scores. Few studies have linked molecular mechanisms to patient outcomes, highlighting important gaps in knowledge. Notably, only a small number of studies included the post-pandemic period but did not analyze the data separately. Despite limited available evidence, critically ill and immunocompromised patients remain at greatest risk of death from PABSIs. This review highlights the need for a broader comparative analysis in future.

7 November 2023
Verified
Book Chapter
Closed access
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SBSeena Biju
Seena Biju
VPVinod Pallath
Vinod Pallath
BMBhakti More
Bhakti More
BVBlessy Prabha Valsaraj
Blessy Prabha Valsaraj
KNKwan Hoong Ng
Kwan Hoong Ng