Displaying publications 61 - 80 of 331 in total

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  1. Paramsothy M, Singham KT
    Med J Malaysia, 1980 Mar;34(3):289-300.
    PMID: 7412670
    Radioisotope detection and localisation of myocardial infarction is discussed. Its clinical value and pitfalls are also discussed. The clinical application of this safe, simple, sensitive, repeatable, reproducible and non-invasive method in Malaysian patients performed during the period October 1978 to April 1979 at the University Hospital is reviewed. The main value of 99mTc labelled phosphate scan is in the demonstration and localisation of recent myocardial infarctions in patients where the electrocardiogram or serum enzymes changes are unhelpful.
    Matched MeSH terms: Myocardial Infarction/radionuclide imaging*
  2. Chin CN, Quek DKL, Ong SBL
    Med J Malaysia, 1991 Mar;46(1):35-40.
    PMID: 1836036
    Sixty five patients were interviewed on an average of 42 months after a myocardial infarction. Using a semi structured interview, they were systematically questioned on their usual sexual activity just before their infarction and at the time of follow up. All were married men with a mean age of 54.4 years and had resumed a normal active life. Forty six (70%) reported a decrease in frequency of sexual intercourse (mean 6.9 times/month before infarction and 0.8 times/month at time of interview, p less than 0.01). The majority had difficulty in discussing sex with their doctors because of impaired doctor-patient communication, cultural factors and lack of privacy. Discussion concerning sex should be initiated as soon as the patient is stable and pertinent advice is the key to better sexual adjustment after myocardial infarction.
    Matched MeSH terms: Myocardial Infarction/complications*
  3. Quek DK, Ong SB, Lim LY
    Med J Malaysia, 1989 Mar;44(1):14-22.
    PMID: 2626108
    Circadian variations have been observed in the onset of acute coronary syndromes including acute myocardial infarction. We studied 422 acute myocardial infarction patients who presented to the coronary care unit of General Hospital Kuala Lumpur. Of the 318 (75.4%) patients whose data was complete, a circadian rhythm with bimodal peak was demonstrated. The second quarter of the day i.e. 6.00 a.m. to 12 noon was shown to have a significantly increased frequency of onset of acute myocardial infarction (p less than 0.05). Time delay in presenting to the hospital was also determined. This showed that 56.8% of acute myocardial infarction patients presented early, within four hours of the onset of symptoms. By six hours, more than 71% had sought hospital care. This early presentation to the hospital may offer a realistic opportunity for optimal thrombolytic therapy should this treatment modality be offered as routine to infarct patients.
    Matched MeSH terms: Myocardial Infarction/physiopathology*
  4. Nik Ramli NN, Omar N, Husin A, Ismail Z, Siran R
    Neurosci Lett, 2015 Feb 19;588:137-41.
    PMID: 25562631 DOI: 10.1016/j.neulet.2014.12.062
    Glutamate receptors are the integral cellular components associated with excitotoxicity mechanism induced by the ischemic cascade events. Therefore the glutamate receptors have become the major molecular targets of neuroprotective agents in stroke researches. Recent studies have demonstrated that a Group I metabotropic glutamate receptor agonist, (S)-3,5-dihydroxyphenylglycine ((S)-3,5-DHPG) preconditioning elicits neuroprotection in the hippocampal slice cultures exposed to toxic level of N-methyl-d-aspartate (NMDA). We further investigated the preconditioning effects of (S)-3,5-DHPG on acute ischemic stroke rats. One 10 or 100μM of (S)-3,5-DHPG was administered intrathecally to Sprague-Dawley adult male rats, 2h prior to induction of acute ischemic stroke by middle cerebral artery occlusion (MCAO). After 24h, neurological deficits were evaluated by modified stroke severity scores and grid-walking test. All rats were sacrificed and infarct volumes were determined by 2,3,5-triphenyltetrazolium chloride staining. The serum level of neuron-specific enolase (NSE) of each rat was analyzed by enzyme-linked immunosorbent assay (ELISA). One and 10μM of (S)-3,5-DHPG preconditioning in the stroke rats showed significant improvements in motor impairment (P<0.01), reduction in the infarct volume (P<0.01) and reduction in the NSE serum level (P<0.01) compared to the control stroke rats. We conclude that 1 and 10μM (S)-3,5-DHPG preconditioning induced protective effects against acute ischemic insult in vivo.
    Matched MeSH terms: Infarction, Middle Cerebral Artery/complications; Infarction, Middle Cerebral Artery/physiopathology; Infarction, Middle Cerebral Artery/prevention & control*; Brain Infarction/etiology; Brain Infarction/pathology; Brain Infarction/prevention & control
  5. Wan Asyraf WZ, Elengoe S, Che Hassan HH, Abu Bakar A, Remli R
    Med J Malaysia, 2020 03;75(2):169-170.
    PMID: 32281601
    Acute ischemic stroke (AIS) and acute ST-elevation myocardial infarction (STEMI) are leading causes of mortality worldwide. Concurrent AIS presentation with STEMI is rare and potentially fatal. Most importantly to date many centres in Malaysia are still not aware on how to treat this condition. We report a case of AIS, which was treated with intravenous tenecteplase (TNK) according to ischemic stroke dosage and lead to improvement of neurological deficit.
    Matched MeSH terms: ST Elevation Myocardial Infarction/drug therapy*
  6. Abdo Ahmed AA, Mohammed Al-Shami A, Jamshed S, Fata Nahas AR, Mohamed Ibrahim MI
    PMID: 33276636 DOI: 10.3390/ijerph17238982
    BACKGROUND: Cardiovascular disease (CVD) is still the leading cause of mortality worldwide, and Malaysia is not an exception in this regard. The current research is an attempt to explore symptom awareness of and necessary actions in response to heart attack (HA) among lay public.

    METHODS: This is a cross-sectional study design, and a survey was conducted from May to July 2018 among general public in Kuantan, Pahang state, Malaysia.

    RESULTS: A total of 393 respondents recruited. Slightly more than one-fourth of the respondents (26.35%) were aware of HA symptoms like pain and/or discomfort in the jaw, neck, or back, while 71.65% showed awareness only of chest pain or discomfort as symptoms. Only 35.6% reported to call an ambulance if they experience someone suffering from HA symptoms, while 82% recognized ≥1 symptom, and only 11.5% recognized all five HA symptoms. Very few respondents, i.e., 1.3% reported awareness about correct recognition of all five HA symptoms. Respondents who had diabetes and hypercholesteremia were more likely to recognize all five HA symptoms. For those who had excellent awareness of all five HA symptoms, the odds ratio (OR) were significantly higher among single respondents (OR 0.023; 95% CI 0.001-0.594), Malay (OR 0.376; 95% CI 0.193-0.733), and those who received information associated with HA (OR 7.540; 95% CI 2.037-27.914). However, those who were aware that HA requires quick treatment had significantly low odds ratio (OR 0.176; 95% CI 0.044-0.710).

    CONCLUSIONS: The awareness of and action towards the signs and symptoms of HA among the public were poor.

    Matched MeSH terms: Myocardial Infarction*
  7. Raffiq MA, Haspani MS, Kandasamy R, Abdullah JM
    Surg Neurol Int, 2014;5:102.
    PMID: 25101197 DOI: 10.4103/2152-7806.135342
    BACKGROUND: Malignant middle cerebral artery (MCA) infarction is a devastating clinical entity affecting about 10% of stroke patients. Decompressive craniectomy has been found to reduce mortality rates and improve outcome in patients.

    METHODS: A retrospective case review study was conducted to compare patients treated with medical therapy and decompressive surgery for malignant MCA infarction in Hospital Kuala Lumpur over a period of 5 years (from January 2007 to December 2012). A total of 125 patients were included in this study; 90 (72%) patients were treated with surgery, while 35 (28%) patients were treated with medical therapy. Outcome was assessed in terms of mortality rate at 30 days, Glasgow Outcome Score (GOS) on discharge, and modified Rankin scale (mRS) at 3 and 6 months.

    RESULTS: Decompressive craniectomy resulted in a significant reduction in mortality rate at 30 days (P < 0.05) and favorable GOS outcome at discharge (P < 0.05). Good functional outcome based on mRS was seen in 48.9% of patients at 3 months and in 64.4% of patients at 6 months (P < 0.05). Factors associated with good outcome include infarct volume of less than 250 ml, midline shift of less than 10 mm, absence of additional vascular territory involvement, good preoperative Glasgow Coma Scale (GCS) score, and early surgical intervention (within 24 h) (P < 0.05). Age and dominant hemisphere infarction had no significant association with functional outcome.

    CONCLUSION: Decompressive craniectomy achieves good functional outcome in, young patients with good preoperative GCS score and favorable radiological findings treated with surgery within 24 h of ictus.

    Matched MeSH terms: Infarction; Infarction, Middle Cerebral Artery
  8. Alhusseiny AH, Al-Nimer MS, Mohammad FI, Ali Jadoo SA
    Int J Cardiol, 2016 Nov 15;223:514-518.
    PMID: 27552568 DOI: 10.1016/j.ijcard.2016.08.244
    Serum annexin A5 (anxA5) level is significantly increased in patients with acute coronary syndrome. Hematological indices are significantly increased in patients with ischemic heart disease. This study aimed to demonstrate the changes in the distribution of blood cells and the levels of anxA5 in patients presented with significant low ejection fraction ST-elevation acute myocardial infarction (STEMI) in comparison with corresponding patients with ischemic heart disease.
    Matched MeSH terms: Anterior Wall Myocardial Infarction; ST Elevation Myocardial Infarction
  9. Fathil MF, Md Arshad MK, Ruslinda AR, Nuzaihan M N M, Gopinath SC, Adzhri R, et al.
    Anal Chim Acta, 2016 Sep 07;935:30-43.
    PMID: 27543013 DOI: 10.1016/j.aca.2016.06.012
    A real-time ability to interpret the interaction between targeted biomolecules and the surface of semiconductors (metal transducers) into readable electrical signals, without biomolecular modification involving fluorescence dyes, redox enzymes, and radioactive labels, created by label-free biosensors has been extensively researched. Field-effect transistor (FET)- and capacitor-based biosensors are among the diverse electrical charge biosensing architectures that have drawn much attention for having charge transduction; thus, enabling the early and rapid diagnosis of the appropriate cardiac biomarkers at lower concentrations. These semiconducting material-based transducers are very suitable to be integrated with portable electronic devices for future online collection, transmission, reception, analysis, and reporting. This overview elucidates and clarifies two major electrical label-free systems (FET- and capacitor-based biosensors) with cardiac troponin (cTn) biomarker-mediated charge transduction for acute myocardial infarction (AMI) diagnosis. Advances in these systems are highlighted by their progression in bridging the laboratory and industry; the foremost technologies have made the transition from benchtop to bedside and beyond.
    Matched MeSH terms: Myocardial Infarction/diagnosis*
  10. Ng WH, Goh TH, Ishak E, Ahmad Z
    Med J Malaysia, 1979 Dec;34(2):131-5.
    PMID: 548713
    Matched MeSH terms: Myocardial Infarction/diagnosis*
  11. Juliena Muhammed, Sanihah Abdul Halim, Wan Hazabbah Wan Hitam, Tharakan, John
    Neurology Asia, 2014;19(3):323-326.
    MyJurnal
    Migraine with aura is one of the major subtypes of migraine, and can be associated with ischaemic brain infarction. Use of oral contraceptive pills (OCPs) increases the risk of infarction in this type of migraine. Seizures and migraine also have a complex relationship, one element of which is migraine- triggered seizures. We report a case of bilateral occipital lobe infarction and migraine-triggered seizures, most likely precipitated by oral contraceptive pills (OCPs) in a patient with migraine with visual aura. OCPs, triptans and ergotamines should be used cautiously in these patients. Methods of birth control other than OCPs should be considered.
    Matched MeSH terms: Infarction; Brain Infarction
  12. Fah NT
    Med J Malaysia, 1977 Jun;31(4):309-15.
    PMID: 927238
    Matched MeSH terms: Myocardial Infarction/diagnosis*
  13. Agarwal A, Vyas S, Kumar R
    Malays Fam Physician, 2015;10(3):35-7.
    PMID: 27570607
    Wellen's syndrome is a pre-infarction stage of coronary artery disease characterised by predefined clinical and electrocardiographic (ECG) criteria of a subgroup of patients with myocardial ischaemia. Early recognition and appropriate intervention of this syndrome carry significant diagnostic and prognostic value. We report this unusual syndrome in an elderly man who presented with recurrent angina and characteristic ECG changes as T-waves inversion in the precordial leads, especially in V2-V6 during pain-free periods and ECG obtained during episodes of pain demonstrating upright T-waves with possible elevated ST segments from V1-V4. Cardiac enzymes were positive and coronary angiography revealed critical stenosis in the proximal left anterior descending artery. It is important to timely identify this condition and intervene appropriately as these patients may develop extensive myocardial infarction that carries a significant morbidity and mortality.
    Matched MeSH terms: Infarction; Myocardial Infarction
  14. Bulgiba AM, Fisher MH
    Health Informatics J, 2006 Sep;12(3):213-25.
    PMID: 17023409 DOI: 10.1177/1460458206066665
    The study investigated the effect of different input selections on the performance of artificial neural networks in screening for acute myocardial infarction (AMI) in Malaysian patients complaining of chest pain. We used hospital data to create neural networks with four input selections and used these to diagnose AMI. A 10-fold cross-validation and committee approach was used. All the neural networks using various input selections outperformed a multiple logistic regression model, although the difference was not statistically significant. The neural networks achieved an area under the ROC curve of 0.792 using nine inputs, whereas multiple logistic regression achieved 0.739 using 64 inputs. Sensitivity levels of over 90 per cent were achieved using low output threshold levels. Specificity levels of over 90 per cent were achieved using threshold levels of 0.4-0.5. Thus neural networks can perform as well as multiple logistic regression models even when using far fewer inputs.
    Matched MeSH terms: Myocardial Infarction/diagnosis*
  15. Badrin S, Mohamad N, Yunus NA, Zulkifli MM
    Korean J Fam Med, 2017 Nov;38(6):380-382.
    PMID: 29209479 DOI: 10.4082/kjfm.2017.38.6.380
    Psychiatric symptoms may be related to a silent cerebral infarct, a phenomenon that has been described previously in literature. Acute psychosis or other neuropsychiatric symptoms including depression may present in stroke patients and patients with lesions either within the prefrontal or occipital cortices, or in subcortical areas such as the basal ganglia, thalamus, mid-brain, and brainstem. Psychosis in clinical stroke or in silent cerebral infarction is uncommon and not well documented in the literature. Neurological deficits are the most common presentation in stroke, and nearly a third of patients that suffer a stroke may experience psychological disorders such as depression and anxiety, related to physical disability. The present case report describes an elderly female patient who presented with hallucinations and depressive symptoms, and was discovered to have a recent right frontal brain infarction, without other significant neurological deficits.
    Matched MeSH terms: Cerebral Infarction; Brain Infarction
  16. Pillai P, Mitchell PJ, Phan TG, Ma H, Yan B
    Cerebrovasc Dis, 2023;52(3):353-362.
    PMID: 36423598 DOI: 10.1159/000526873
    BACKGROUND: Extensive randomized controlled clinical trials for endovascular thrombectomy in anterior circulation large vessel occlusions (internal carotid arteries and M1 segment of middle cerebral arteries) have been published over the past decade, but there have not been randomized controlled trials for distal arterial occlusions to date. Distal arterial occlusion randomized controlled trials are essential to decide on patient selection, imaging criteria, and endovascular approach to improve the outcome and reduce complications.

    SUMMARY: The definition of distal arterial occlusion is however unclear, and we believe that a uniform nomenclature of distal arterial occlusions is essential for the design of robust randomized controlled studies. We undertook a systematic literature review and comprehensive analysis of 70 articles looking at distal arterial occlusions and previous attempts at classifying them as well as comparing their similarities and differences with a more selective look at the middle cerebral artery. Thirty-two articles were finally deemed suitable and included for this review. In this review article, we present 3 disparate classifications of distal arterial occlusions, namely, classical/anatomical, functional/imaging, and structural/calibre, and compare the similarities and differences between them.

    KEY MESSAGES: We propose the adoption of functional/imaging classification to guide the identification of distal arterial occlusions with the M2 segment starting at the point of bifurcation of the middle cerebral artery trunk/M1 segment. With regards to the anterior temporal artery, we propose that it will be considered a branch of the M1 and only be considered as the M2 segment if it is a holo-temporal artery. We believe that this is a practical method of classification in the time-critical decision-making period.

    Matched MeSH terms: Infarction, Middle Cerebral Artery/therapy
  17. Muthupalaniappen L, Menon RK, Das S
    Saudi Med J, 2012 Feb;33(2):197-200.
    PMID: 22327763
    Myocardial infarction (MI) is known to be common in adults. Interestingly, we report a case of a 15-year-old boy who presented with typical chest pain secondary to myocardial infarct attributable to a combination of familial hyperlipidemia and possible episode of Kawasaki disease in the past. The patient failed treatment and follow-up care, and died 2 years later. Although rare, this case demonstrates that MI should be considered as a diagnosis in adolescents presenting with typical chest pain as early detection, and management is vital for survival.
    Matched MeSH terms: Myocardial Infarction/etiology*
  18. Leal J, Becker F, Lim LL, Holman RR, Gray AM
    J Diabetes, 2022 Jul;14(7):455-464.
    PMID: 35876124 DOI: 10.1111/1753-0407.13294
    BACKGROUND: We estimate health-related quality of life and the impact of four cardiovascular events (myocardial infarction [MI], stroke, congestive heart failure, angina) and gastrointestinal events in 6522 Chinese patients with coronary heart disease (CHD) and impaired glucose tolerance (IGT) participating in the Acarbose Cardiovascular Evaluation (ACE) trial.

    METHODS: Health-related quality of life was captured using the EuroQol-5 Dimension-3 Level (EQ-5D-3L), with data collected at baseline and throughout the trial. Multilevel mixed-effects linear regression with random effects estimated health-related quality of life over time, capturing variation between hospital sites and individuals, and a fixed-effects linear model estimated the impact of cardiovascular and gastrointestinal events.

    RESULTS: Patients were followed for a median of 5 years (interquartile range 3.4-6.0). The average baseline EQ-5D score of 0.930 (SD 0.104) remained relatively unchanged over the trial period with no evidence of statistically significant differences in EQ-5D score between randomized treatment groups. The largest decrement in the year of an event was estimated for stroke (-0.107, P 

    Matched MeSH terms: Myocardial Infarction*
  19. Hood RJ, Sanchez-Bezanilla S, Beard DJ, Rust R, Turner RJ, Stuckey SM, et al.
    J Neurochem, 2023 Dec;167(6):733-752.
    PMID: 38010732 DOI: 10.1111/jnc.16008
    We have previously demonstrated that a cortical stroke causes persistent impairment of hippocampal-dependent cognitive tasks concomitant with secondary neurodegenerative processes such as amyloid-β accumulation in the hippocampus, a region remote from the primary infarct. Interestingly, there is emerging evidence suggesting that deposition of amyloid-β around cerebral vessels may lead to cerebrovascular structural changes, neurovascular dysfunction, and disruption of blood-brain barrier integrity. However, there is limited knowledge about the temporal changes of hippocampal cerebrovasculature after cortical stroke. In the current study, we aimed to characterise the spatiotemporal cerebrovascular changes after cortical stroke. This was done using the photothrombotic stroke model targeting the motor and somatosensory cortices of mice. Cerebrovascular morphology as well as the co-localisation of amyloid-β with vasculature and blood-brain barrier integrity were assessed in the cortex and hippocampal regions at 7, 28 and 84 days post-stroke. Our findings showed transient cerebrovascular remodelling in the peri-infarct area up to 28 days post-stroke. Importantly, the cerebrovascular changes were extended beyond the peri-infarct region to the ipsilateral hippocampus and were sustained out to 84 days post-stroke. When investigating vessel diameter, we showed a decrease at 84 days in the peri-infarct and CA1 regions that were exacerbated in vessels with amyloid-β deposition. Lastly, we showed sustained vascular leakage in the peri-infarct and ipsilateral hippocampus, indicative of a compromised blood-brain-barrier. Our findings indicate that hippocampal vasculature may represent an important therapeutic target to mitigate the progression of post-stroke cognitive impairment.
    Matched MeSH terms: Infarction/complications
  20. Wahab NA, Zainudin S, AbAziz A, Kamaruddin NA
    Med Princ Pract, 2015;24(1):96-8.
    PMID: 25428406 DOI: 10.1159/000369021
    OBJECTIVE: The aim of this case study is to emphasize the importance of α-blockade in managing a rare complication of an untreated pheochromocytoma.

    CLINICAL PRESENTATION AND INTERVENTION: A 41-year-old man with previous bilateral pheochromocytoma presented with chest pain. He was suffering from cardiac failure and persistent hypotension requiring an inotrope. Cardiac markers, an electrocardiogram and an echocardiogram confirmed acute myocardial infarct with poor ejection fraction and global hypokinesia. An (18)F-fluorodeoxyglucose PET/CT scan showed progressive left suprarenal and organ of Zuckerkandl pheochromocytomas. Blood pressure stabilisation proved challenging but was achieved by titrating an incremental dose of α-blocker against a tapering inotropic dose.

    CONCLUSION: This case showed the efficacy of an α-blocker despite persistent hypotension in a patient with pheochromocytoma-induced cardiomyopathy.

    Matched MeSH terms: Myocardial Infarction/complications; Myocardial Infarction/diagnosis; Myocardial Infarction/drug therapy*
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