MyMedR

Displaying publications 41 - 60 of 114 in total

Abstract:

Sort:

Epidemiology of cryptococcosis in Malaysia

Tay ST, Rohani MY, Hoo TS, Hamimah H

Mycoses, 2010 Nov;53(6):509-14.
PMID: 19627508 DOI: 10.1111/j.1439-0507.2009.01750.x

This study describes the isolation of Cryptococcus neoformans and Cryptococcus gattii from patients with chronic meningitis who were admitted to 16 Malaysian hospitals, from 2003 to 2004. Of the 96 cryptococcal cases reported over the 2-year period, 74 (77.1%) patients were male and 45 (46.9%) patients were between 30 and 39 years old. Cryptococcosis was uncommon in children. A total of 57 (59.4%) and 23 (24.0%) patients were Malay and Chinese respectively. Human immunodeficiency virus infection was the major underlying disease reported in 36 (37.5%) patients. C. neoformans var. grubii (serotype A and molecular type VNI) was the predominant Cryptococcus species isolated from 88.5% of cryptococcal cases in this country. Cryptococcal cases due to C. neoformans var. grubii were reported from all the five regions in Malaysia, with the most number of cases reported from the central and northern regions. Cryptococcus gattii (all were serotype B and molecular types VGI/II) was isolated from all regions except the southern region. Compared with a study conducted prior to the AIDS era, our findings show substantial changes in the demographical characteristics of patients.

Matched MeSH terms: Meningitis, Cryptococcal/microbiology*; Meningitis, Cryptococcal/epidemiology*
Imported tropical neuroinfections: practice skills and knowledge among nurses and nursing students

Rajoo M, Sulicova A, Mroskova S, Supinova M, Plackova A, Bystra M, et al.

Neuro Endocrinol. Lett., 2013 Sep;34(Suppl 1):45-7.
PMID: 24013609

OBJECTIVE: Tropical neuroinfections are still cause of substantial mortality in travelers. Therefore, good knowledge of early symptoms is very important for nurses acting as first contact persons.
METHODS: Nurse's practical skills and knowledge of signs and early recognition of tropical neuroinfections, providing first aid and quick action has been studied among graduates of two Tropical Nursing PhD programs (in EU-Countries vs. tropical country) using a standardized questionnaire. Statistical package EPI info was used to determine potential differences between both groups of graduates.
RESULTS: Acceptable knowledge on early symptoms and signs of cerebral malaria and meningococcal meningitis in returning travelers was found among 121 graduates of two PhD programs who were included in the study. Of these, 99 questionnaires were filled in Slovakia, Czech Republic and Germany and another 22 were filled in Malaysia, as a part of the Tropical Nursing PhD Study Programs.
CONCLUSION: Nursing students and recent graduates in two PhD programs demonstrated acceptable, although not large-scaled, knowledge of early signs and symptoms of tropical neuroinfections.

Matched MeSH terms: Meningitis, Meningococcal
Eosinophilic meningitis beyond the Pacific Basin: the global dispersal of a peridomestic zoonosis caused by Angiostrongylus cantonensis, the nematode lungworm of rats

Kliks MM, Palumbo NE

Soc Sci Med, 1992 Jan;34(2):199-212.
PMID: 1738873 DOI: 10.1016/0277-9536(92)90097-A

The principal etiologic agent of human eosinophilic meningitis, Angiostrongylus cantonensis, was first detected in rats in Canton, China in 1933. The first human case was detected on Taiwan in 1944. Epidemic outbreaks were noted on Ponape (E. Caroline Is.) from 1944 to 1948. The disease may present as transient meningitis or a more severe disease involving the brain, spinal cord and nerve roots, with a characteristic eosinophilia of the peripheral blood and CSF. Since 1961 it has been known that human infections are usually acquired by purposeful or accidental ingestion of infective larvae in terrestrial mollusks, planaria and fresh-water crustacea. There is no effective specific treatment. The African land snail, Achatina fulica played an important role in the panpacific dispersal of the organism: it will be important in Africa in the future as well. Rats were, and will continue to be the principal agents of expansion of the parasite beyond the Indopacific area. During and just after WWII the parasite was introduced, and/or spread passively from South and Southeast Asia into the Western Pacific islands and eastward and southward through Micronesia, Melanesia, Australia and into Polynesia, sequestered in shipments of war material and facilitated by post-war commerce. In the 1950s numerous cases were identified for the first time on Sumatra, the Philippines, Taiwan, Saipan, New Caledonia, and as far east as Rarotonga and Tahiti. Then cases were detected in Vietnam, Thailand, Cambodia, Java, Sarawak, the New Hebrides, Guam and Hawaii during the 1960s. Subsequently in the Pacific Basin the disease has appeared on Okinawa, other Ryukyu islands, Honshu, Kyushu, New Britain, American Samoa and Western Samoa, Australia, Hong Kong, Bombay, India, Fiji and most recently in mainland China. The parasite in rats now occurs throughout the Indopacific Basin and littoral. Beyond the Indopacific region, the worm has been found in rodents in Madagascar (ca 1963), Cuba (1973), Egypt (1977), Puerto Rico (1984), New Orleans, Louisiana (1985) and Port Harcourt, Nigeria (1989). Human infections have now been detected in Cuba (1973), Réunion Island (1974) and Côte d'Ivoire (1979) and should be anticipated wherever infected rats of mollusks have been introduced. Caged primates became infected in zoos in Hong Kong (1978) and New Orleans and Nassau, Bahamas (1987). The use of mollusks and crustacea as famine foods, favored delicacies and medicines has resulted in numerous outbreaks and isolated infections. Economic and political instability, illicit trade, unsanitary peridomestic conditions and lack of health education promote the local occurrence and insidious global expansion of parasitic eosinophilic meningitis.(ABSTRACT TRUNCATED AT 400 WORDS)

Matched MeSH terms: Meningitis/diagnosis; Meningitis/etiology*; Meningitis/prevention & control
Fulltext PCR-based construction and transformation of CodY gene deletion construct in Streptococcus Pneumoniae

Aisyah Mohamed Rehan, Mohammad Izwan Enche Othman, Nor Munirah Mohd Amin, Intan Azura Shahdan, Hanani Ahmad Yusof@Hanafi

International Medical Journal Malaysia, 2017;16(11):7-7.
MyJurnal

Streptococcus pneumoniae (S. pneumoniae) is a gram-positive diplococci belonging to the genus Streptococcus and it is a well-studied pathogenic bacterium. Pneumococcal diseases such as otitis media, pneumonia, sepsis and meningitis caused by pathogenic strains of S. pneumoniae still brought significant mortality and morbidity worldwide. The pathogenicity of S. pneumoniae is exerted by various virulence factors and one of it is the enzyme hyaluronate lyase. Hyaluronate lyase plays a major role in
the invasive capability of S. pneumoniae. Its mechanism of action and crystallographic
structure have been determinedbut its regulatory mechanism is still poorly understood.
Drawing connections between the nutritional behaviour and invasive property of S.
pneumoniae, CodY regulator is hypothesized as a potential hyaluronate lyase regulator.
This work was aimed to construct CodY deficient mutant of S. pneumoniae to form
foundational work for the study of CodY regulatory effect on hyaluronate lyase.

Matched MeSH terms: Meningitis
Fulltext Group B Streptococcal Meningitis in a Healthy Young Woman: A Case Report

Payus AO, Clarence C, Azman Ali R

Int J Gen Med, 2020;13:861-864.
PMID: 33116778 DOI: 10.2147/IJGM.S277394

Group B streptococcus (GBS) is a rare cause of meningitis in adults that commonly affects patients with multiple underlying comorbidities. Although it is uncommon, it typically progresses very rapidly and has a high mortality rate as compared to other causes of bacterial meningitis. Here, we report a patient with GBS meningitis who had no underlying medical illness and presented with multiple episodes of seizure within hours of developing fever. Cerebrospinal fluid analysis results were consistent with bacterial meningitis, and blood cultures grew GBS. She was treated with intravenous ceftriaxone for 2 weeks and made a great recovery without any sequalae. In conclusion, although GBS meningitis is uncommon in adults, it is a serious medical disease and associated with a high mortality rate. To the best of our knowledge, this patient represents one of the few reported cases of GBS meningitis in a previously healthy young adult.

Matched MeSH terms: Meningitis, Bacterial
Fulltext Streptococcus pneumoniae Meningitis and Intracranial Vasculopathy: Clinical Correlation with Improving Transcranial Doppler Hemodynamics

Idris MI, Tai SML, Tan CT, Tan KS

Case Rep Neurol, 2020 12 14;12(Suppl 1):106-109.
PMID: 33505281 DOI: 10.1159/000500950

Streptococcus pneumoniae are Gram-positive bacteria that are responsible for many types of illnesses including pneumonia, sinus infections, and community-acquired meningitis. One important complication of bacterial meningitis is intracranial vasculopathy. Possible etiologies include vasculitis, vasospasm, endocarditis, or intra-arterial thrombosis. We present a case report of S. pneumoniae meningitis treated with antibiotics in which clinical improvement correlated with serial transcranial Doppler ultrasonography (TCD) improvement, suggesting vasospasm or vasculitis as a possible mechanism for intracranial vasculopathy.

Matched MeSH terms: Meningitis, Bacterial
Vaccine update: the association between measles-mumps-rubella vaccination (MMR) and onset of autism and inflammatory bowel disease

Lee, E.L.

Malaysian Journal of Paediatrics and Child Health, 2001;13(1):1-12.
MyJurnal

Vaccines, used appropriately and efficiently, have changed the landscape of infectious diseases. Poliomyelitis is almost completely eliminated globally. In many industrialised countries, there has been over 99 percent reduction in incidence of diphtheria, tetanus, measles, mumps, rubella, Haemophilus in-fluenzae b meningitis and over 97 percent reduction in whooping cough.',2Unlike anti-biotics, most vaccines have remained equally effective despite years of continuous usage.

Matched MeSH terms: Meningitis
Fulltext Posterior Fossa Intradiploic Epidermoid Cyst: A case report

Ng, Wei Ping, Liew, BS, Gee, TS, Azmin KR

International Medical Journal Malaysia, 2015;14(2):67-70.
MyJurnal

Epidermoid cysts are rare, benign congenital tumours of ectodermal origin which typically present between
the third to fifth decade. These tumours comprise approximately 0.2-1.8% of all intracranial tumours. Though
these pearly tumours are potentially curable, subtotal resection may lead to catastrophic complications such as
recurrence, granulomatous meningitis and carcinomatous degeneration of cyst wall. We herein report the case
of a 36-year-old man who presented with an unusual mixed density posterior fossa epidermoid cyst on imaging
studies. Total removal not only cures both tumour and seizure attack in this case but also preserves patient’s
neurological function.

Matched MeSH terms: Meningitis
Fulltext Lessons learned about opportunistic infections in southeast Asia

Nissapatorn V

Southeast Asian J Trop Med Public Health, 2008 Jul;39(4):625-41.
PMID: 19058599

Southeast Asia is a region where the number of people infected with HIV/AIDS is one of the fastest growing in the world. Tuberculosis (TB) has grown along with the HIV epidemic. TB is not only the most common AIDS-defining illness but is also the leading cause of morbidity and mortality in AIDS patients. Cryptococcosis (meningitis or disseminated) is one of the most common opportunistic infections in AIDS patients. Cryptococcal meningitis is the first in the differential diagnosis considered with meningeal irritation. Penicillosis, a unique systemic mycosis, is an important emerging public health problem and has been classified as an AIDS defining illness in endemic areas like Thailand. Pneumocystis carinii (jiroveci) pneumonia has been one of the most important opportunistic infections in AIDS patients. Among parasitic infections, cryptosporidiosis is the most common intestinal protozoan infection relating to diarrhea in AIDS patients and toxoplasmosis is the only parasitic infection of the nervous system with a substantial incidence, up to 14.8%. Cytomegalovirus (CMV) retinitis has a lower prevalence compared to other opportunistic infections. In the era of highly active antiretroviral therapy (HAART), the incidence of opportunistic infections has significantly reduced in the past few years. Subsequently, the phenomena of immune restoration inflammatory syndrome (IRIS) in AIDS patients has been reported in this region as a result of HAART.

Matched MeSH terms: Meningitis, Cryptococcal/microbiology; Meningitis, Cryptococcal/epidemiology; Meningitis, Cryptococcal/virology
Fulltext Post meningitic sensori-neural hearing loss in children--alterations in hearing level

Yeat SW, Mukari SZ, Said H, Motilal R

Med J Malaysia, 1997 Sep;52(3):285-90.
PMID: 10968099

Post meningitic sensori-neural hearing loss was studied in forty new cases of bacterial meningitis and ten cases of viral meningitis treated at the Pediatric Institute, Kuala Lumpur Hospital from April 1991 to March 1992. Hearing assessment at 2 weeks, 3 months and 6 months following the diagnosis of meningitis using Brain Stem Evoked Response Audiometry showed that hearing loss was prevalent only in patients with bacterial meningitis. Hearing loss was detected in 32.5% of these patients during the acute phase of the disease, 22.8% after 3 months and 24.2% after 6 months. In 63.6% of the affected cases, hearing loss was bilateral. In 61.5% of the patients who had hearing loss during the acute phase of the disease, it was permanent, 16.7% had either partial or complete recovery and, 15.4% had deterioration in hearing level. In 2 cases the subsequent hearing level was unknown. The risk of developing sensori neural hearing loss was found to be significantly higher in patients who developed other neurological sequelae. The study highlights the importance of performing repeated hearing assessment in children with bacterial meningitis and the difficulty in appropriate selection of hearing aids in the early stages.

Matched MeSH terms: Meningitis, Bacterial/complications*
Surgical resection of pulmonary cryptococcomas in the presence of cryptococcal meningitis

Majid AA

J R Coll Surg Edinb, 1989 Dec;34(6):332-3.
PMID: 2628570
Matched MeSH terms: Meningitis/complications*
Intracranial hypertension causing visual failure in cryptococcus meningitis

Tan CT

J Neurol Neurosurg Psychiatry, 1988 Jul;51(7):944-6.
PMID: 3204403

Thirty four patients with cryptococcal meningitis seen in the University of Malaya medical centre since 1980 were reviewed. Eleven patients had bilateral papilloedema and visual impairment but eventually survived. Seven patients had intensive aggressive measures, including shunting to reduce intracranial hypertension irrespective of ventricular size shown in CT scan, and showed substantial improvement in vision. It is concluded that papilloedema and visual failure in cryptococcal meningitis reflects raised intracranial pressure and that this should be treated vigorously.

Matched MeSH terms: Meningitis/physiopathology*
Entero-and myxoviral infections of the central nervous system

Tan DS

Med J Malaya, 1968 Dec;23(2):140-5.
PMID: 4308419
Matched MeSH terms: Meningitis, Viral/etiology
Fulltext Echovirus serotypes circulating in Malaysia from 2014 to 2019

Manisya Zauri Abdul Wahid, Tengku Rogayah T. Abd. Rashid, Hariyati Md. Ali, Hamadah Mohd Shafiff, Mohd. Shamsul Samsuddin, Syarifah Nur Aisyatun Syed Mohd Salleh, et al.

Malaysian Journal of Medicine and Health Sciences, 2019;15(106):91-91.
MyJurnal

Introduction:Echoviruses are Enteroviruses (HEVs) that infect millions of people annually worldwide, primarily paediatrics. These viruses are frequently associated with outbreaks and sporadic cases of viral meningitis, enceph-alitis, paralysis, myocarditis, severe systemic infections; and hand-foot-mouth disease. This study is a retrospective study to identify Echovirus serotypes circulating in Malaysia from January 2014 to June 2019, and their roles in outbreak prediction. This study investigated the Echovirus serotypes circulating in Malaysia from January 2014 to June 2019. Methods: A total of 13,855 inpatient samples consisting respiratory secretion, stool, tissue and body fluid from around the country were received by the Virology Unit, Institute for Medical Research between January 2014 and June 2019. The presence of HEV’s RNA was detected by qPCR. The identified positive sample was further isolated by cell culture and identified by Immunofluorescence Assay (IFA). The IFA positive samples were subjected to amplification of partial VP4 gene by RT-PCR, and proceeded to Sanger sequencing for phylogenetic analysis by using ChromasPro and MEGA Software. The sequence generated were analysed by BLAST to confirm the sequence serotypes generated. Results: Echovirus genome was detected in 0.35% (37/10,681) of the patients. The circulating Echovirus subtypes in Malaysia between January 2014 and June 2019 were Echo-11 (43.2%; 16/37), followed by Echo-6 (16.2%; 6/37); 8.1% (3/37) of Echo-7 and Echo-13, respectively. Meanwhile, other types of Echoviruses (24.3%; 9/37) such as Echo 3-5, Echo-14, Echo-16, Echo-18, Echo-25 and Echo-30 were also detected in this study. Conclusion: In this study, it has been found that Echovirus 11 serotype is the most predominant Echovirus serotype circulating in Malaysia between January 2014 and June 2019. It has been reported to cause severe diseases, such as aseptic meningitis. Therefore, the identification of circulating serotypes of Echovirus is critical to predict the Echovi-rus outbreak and to reduce the risk of developing severe disease in Malaysia.

Matched MeSH terms: Meningitis, Aseptic; Meningitis, Viral
Tuberculosis in living related donor renal transplant recipients

Suleiman AB, Musa Z, Morad Z

Ann Acad Med Singap, 1988 Jul;17(3):454-6.
PMID: 3064705

Ten out of 237 patients who underwent renal transplantation between 1975 and October 1986 developed tuberculosis. Most patients presented with vague symptoms, and typical symptoms commonly associated with tuberculosis were not common. Six had positive urine cultures. One patient had positive sputum and urine cultures and one had positive sputum and cerebrospinal fluid cultures for tuberculosis. In this last patient cryptococcus was also cultured from the sputum and CSF. Nine of the 10 patients responded well to antituberculosis therapy and was cured of the infection. The patient with associated cryptococcal infection died 2 months after presentation. Side effects of antituberculous therapy was minimal and easily resolved on stopping the offending drug.

Matched MeSH terms: Meningitis/etiology
DE WITT GF,+DEWITT GF: ACTIVITY OF GLUTAMIC OXALACETIC TRANSAMINASE IN THE CEREBROSPINAL FLUID IN NEUROLOGICAL DISEASES

CHING CK

Med J Malaysia, 1963 Sep;18:8-12.
PMID: 14064302
Matched MeSH terms: Meningitis*
Talaromyces (Penicillium) species infection in the central nervous system

Chuah CH, Ong YC, Kong BH, Woo YY, Wong PS, Leong KN, et al.

J R Coll Physicians Edinb, 2020 Jun;50(2):138-140.
PMID: 32568283 DOI: 10.4997/JRCPE.2020.211

Talaromycosis typically occurs as an opportunistic infection among immunocompromised individuals. Infection caused by species other than T. marneffei is uncommon. While most reported cases describe infection in the lungs, we report an extremely rare intracranial Talaromyces species infection. This 61-year-old with end-stage renal disease who was unwell for the previous two months, presented with fever and worsening confusion lasting for three days. Lumbar puncture was suggestive of meningitis. Cerebrospinal fluid (CSF) culture was later confirmed to be Penicillium chrysogenum. The patient was co-infected with Group B Streptococcus sepsis. He improved with amphotericin B and ceftriaxone and was discharged with oral itraconazole for four weeks. However, he died of unknown causes two weeks later at home. Talaromyces species infection in the central nervous system is uncommon. This case highlighted a rare but life-threatening fungal meningitis. Among the four reported cases worldwide, none of the patients survived.

Matched MeSH terms: Meningitis; Meningitis, Fungal
COVID-19 and its effects on neurological functions

Yew MMT, Lip JQ, Ling APK

Trop Biomed, 2021 Sep 01;38(3):435-445.
PMID: 34608117 DOI: 10.47665/tb.38.3.086

Ever since the first reported case series on SARS-CoV-2-induced neurological manifestation in Wuhan, China in April 2020, various studies reporting similar as well as diverse symptoms of COVID-19 infection relating to the nervous system were published. Since then, scientists started to uncover the mechanism as well as pathophysiological impacts it has on the current understanding of the disease. SARS-CoV-2 binds to the ACE2 receptor which is present in certain parts of the body which are responsible for regulating blood pressure and inflammation in a healthy system. Presence of the receptor in the nasal and oral cavity, brain, and blood allows entry of the virus into the body and cause neurological complications. The peripheral and central nervous system could also be invaded directly in the neurogenic or hematogenous pathways, or indirectly through overstimulation of the immune system by cytokines which may lead to autoimmune diseases. Other neurological implications such as hypoxia, anosmia, dysgeusia, meningitis, encephalitis, and seizures are important symptoms presented clinically in COVID-19 patients with or without the common symptoms of the disease. Further, patients with higher severity of the SARS-CoV-2 infection are also at risk of retaining some neurological complications in the long-run. Treatment of such severe hyperinflammatory conditions will also be discussed, as well as the risks they may pose to the progression of the disease. For this review, articles pertaining information on the neurological manifestation of SARS-CoV-2 infection were gathered from PubMed and Google Scholar using the search keywords "SARS-CoV-2", "COVID-19", and "neurological dysfunction". The findings of the search were filtered, and relevant information were included.

Matched MeSH terms: Meningitis, Viral/virology
Fulltext Serotyping of Flavobacterium meningosepticum by co-agglutination method

Salasawati H, Ramelah M, Pitt TL, Holmes B

Southeast Asian J Trop Med Public Health, 1998 Dec;29(4):872-7.
PMID: 10772579

The purpose of this investigation was to evaluate the usefulness of a co-agglutination procedure for the typing of Flavobacterium meningosepticum. The sensitivity and specificity of the co-agglutination test was compared to the slide agglutination test using reference strains of the bacterial species. Antisera were characterized by both technics to determine their titer and working dilution. The specificity of the sera was assessed by performing tests which include strains of other species and serotypes. A collection of 47 strains of F. meningosepticum isolated from clinical specimens were typed by both co-agglutination and slide agglutination methods. Co-agglutination proved to be markedly more specific than the slide procedure although both methods were similar in sensitivity. It was concluded that co-agglutination proved to be an excellent method for the serotyping of F. meningosepticum.

Matched MeSH terms: Meningitis/microbiology
Fulltext Tuberculous meningitis is a major cause of mortality and morbidity in adults with central nervous system infections in Kota Kinabalu, Sabah, Malaysia: an observational study

Lee HG, William T, Menon J, Ralph AP, Ooi EE, Hou Y, et al.

BMC Infect Dis, 2016 06 16;16:296.
PMID: 27306100 DOI: 10.1186/s12879-016-1640-x

BACKGROUND: Central nervous system (CNS) infections are a significant contributor to morbidity and mortality globally. However, most published studies have been conducted in developed countries where the epidemiology and aetiology differ significantly from less developed areas. Additionally, there may be regional differences due to variation in the socio-economic levels, public health services and vaccination policies. Currently, no prospective studies have been conducted in Sabah, East Malaysia to define the epidemiology and aetiology of CNS infections. A better understanding of these is essential for the development of local guidelines for diagnosis and management.
METHODS: We conducted a prospective observational cohort study in patients aged 12 years and older with suspected central nervous system infections at Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia between February 2012 and March 2013. Cerebrospinal fluid was sent for microscopy, biochemistry, bacterial and mycobacterial cultures, Mycobacterium tuberculosis polymerase chain reaction (PCR), and multiplex and MassCode PCR for various viral and bacterial pathogens.
RESULTS: A total of 84 patients with clinically suspected meningitis and encephalitis were enrolled. An aetiological agent was confirmed in 37/84 (44 %) of the patients. The most common diagnoses were tuberculous meningitis (TBM) (41/84, 48.8 %) and cryptococcal meningoencephalitis (14/84, 16.6 %). Mycobacterium tuberculosis was confirmed in 13/41 (31.7 %) clinically diagnosed TBM patients by cerebrospinal fluid PCR or culture. The acute case fatality rate during hospital admission was 16/84 (19 %) in all patients, 4/43 (9 %) in non-TBM, and 12/41 (29 %) in TBM patients respectively (p = 0.02).
CONCLUSION: TBM is the most common cause of CNS infection in patients aged 12 years or older in Kota Kinabalu, Sabah, Malaysia and is associated with high mortality and morbidity. Further studies are required to improve the management and outcome of TBM.

Matched MeSH terms: Meningitis, Cryptococcal/cerebrospinal fluid; Meningitis, Cryptococcal/microbiology; Meningitis, Cryptococcal/mortality; Meningitis, Cryptococcal/epidemiology*

Filters

Please provide feedback to Administrator ([email protected])

External Links