Displaying publications 961 - 980 of 989 in total

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  1. Gao F, Lam CS, Yeo KK, Machin D, de Carvalho LP, Sim LL, et al.
    J Am Heart Assoc, 2016 10 06;5(10).
    PMID: 27792637
    BACKGROUND: We examined the influence of sex, ethnicity, and time on competing cardiovascular and noncardiovascular causes of death following acute myocardial infarction in a multiethnic Asian cohort.

    METHODS AND RESULTS: For 12 years, we followed a prospective nationwide cohort of 15 151 patients (aged 22-101 years, median age 63 years; 72.3% male; 66.7% Chinese, 19.8% Malay, 13.5% Indian) who were hospitalized for acute myocardial infarction between 2000 and 2005. There were 6463 deaths (4534 cardiovascular, 1929 noncardiovascular). Compared with men, women had a higher risk of cardiovascular death (age-adjusted hazard ratio [HR] 1.3, 95% CI 1.2-1.4) but a similar risk of noncardiovascular death (HR 0.9, 95% CI 0.8-1.0). Sex differences in cardiovascular death varied by ethnicity, age, and time. Compared with Chinese women, Malay women had the greatest increased hazard of cardiovascular death (HR 1.4, 95% CI 1.2-1.6) and a marked imbalance in death due to heart failure or cardiomyopathy (HR 3.4 [95% CI 1.9-6.0] versus HR 1.5 [95% CI 0.6-3.6] for Indian women). Compared with same-age Malay men, Malay women aged 22 to 49 years had a 2.5-fold (95% CI 1.6-3.8) increased hazard of cardiovascular death. Sex disparities in cardiovascular death tapered over time, least among Chinese patients and most among Indian patients; the HR comparing cardiovascular death of Indian women and men decreased from 1.9 (95% CI 1.5-2.4) at 30 days to 0.9 (95% CI 0.5-1.6) at 10 years.

    CONCLUSION: Age, ethnicity, and time strongly influence the association between sex and specific cardiovascular causes of mortality, suggesting that health care policy to reduce sex disparities in acute myocardial infarction outcomes must consider the complex interplay of these 3 major modifying factors.

    Matched MeSH terms: Heart Failure/mortality
  2. Hassan Y, Aziz NA, Al-Jabi SW, Looi I, Zyoud SH
    J Cardiovasc Pharmacol Ther, 2010 Sep;15(3):274-81.
    PMID: 20624923 DOI: 10.1177/1074248410373751
    Angiotensin-converting enzyme inhibitors (ACEIs) have shown promising results in decreasing the incidence and the severity of ischemic stroke in populations at risk and in improving ischemic stroke outcomes.
    Matched MeSH terms: Heart Failure/complications
  3. Kazemipoor M, Radzi CW, Hajifaraji M, Cordell GA
    Phytother Res, 2014 Oct;28(10):1456-60.
    PMID: 24638976 DOI: 10.1002/ptr.5147
    Carum carvi L. (Apiaceae) is known as caraway, and its derivatives find wide medicinal use for health purposes, including for gastrointestinal problems and obesity. Since there is inconsistency among the reports on the safety of this plant in humans, this research was aimed at assessing the safety of a characterized caraway aqueous extract (CAE) in a randomized, triple-blind, placebo-controlled study. Seventy, overweight and obese, healthy women were randomly assigned into placebo (n = 35) and plant extract (n = 35) groups. Participants received either 30 ml/day of CAE or placebo. Subjects were examined at baseline and after 12 weeks for changes in heart rate, blood pressure, urine test, 25-item blood chemistries, and general health status. No significant changes of blood pressure, heart rate, urine specific gravity, and serum blood tests were observed between the two groups before and after treatment. However, in the complete blood count test, red blood cell levels were significantly (p 
    Matched MeSH terms: Heart Rate
  4. Rahman S, Ismail AA, Ismail SB, Naing NN, Rahman AR
    Diabetes Res Clin Pract, 2008 May;80(2):253-8.
    PMID: 18249457 DOI: 10.1016/j.diabres.2007.12.010
    Type II diabetes patients have increased risk of macrovascular complications compared with the general population. Arterial stiffness is considered as an independent predictor of macrovascular events. This study investigated arterial stiffness in newly diagnosed never treated diabetes and impaired glucose tolerance (IGT) patients without any traditional cardiovascular diseases (CVD) risk factors. After preliminary screening of 1620 individuals, 30 diabetic and 30 IGT patients were recruited and compared with age- and sex-matched 30 normoglycaemic subjects. The subjects were newly diagnosed, never treated, normotensive, non-obese, non-hyperlipidaemic and non-smoker. Haemodynamic variables, pulse wave velocity (PWV) and augmentation index (AI) were measured. The PWV was significantly higher in diabetic patients (10.37+/-2.64m/s vs. 8.70+/-1.29m/s; p=0.035) and was of borderline significant in IGT subjects (9.54+/-1.56m/s vs.8.70+/-1.29m/s, p=0.078) compared to normoglycaemic individuals. Augmentation index was higher of borderline significant in diabetic (134.53+/-17.32% vs. 129.17+/-11.18%, p=0.055) and IGT patients (132.02+/-16.11% vs. 129.17+/-11.18%, p=0.059) compared to normoglycaemic individuals. The study demonstrated that newly diagnosed never treated diabetic patients without any CV complications had early manifestation of macrovascular diseases as evident by increased arterial stiffness. The findings also revealed early manifestations of preclinical vasculopathy and potentially increased risk for development of macrovascular diseases at an early age in diabetic patients.
    Matched MeSH terms: Heart Rate
  5. Dillon J, Yakub MA, Nordin MN, Pau KK, Krishna Moorthy PS
    Eur J Cardiothorac Surg, 2013 Oct;44(4):682-9.
    PMID: 23407161 DOI: 10.1093/ejcts/ezt035
    Type IIIa mitral regurgitation (MR) due to rheumatic leaflet restriction often renders valve repair challenging and may predict a less successful repair. However, the utilization of leaflet mobilization and extension with the pericardium to increase the surface of coaptation may achieve satisfactory results. We reviewed our experience with leaflet extension in rheumatic mitral repair with emphasis on the technique and mid-term results.
    Matched MeSH terms: Heart Valve Prosthesis
  6. Saat M, Tochihara Y, Hashiguchi N, Sirisinghe RG, Fujita M, Chou CM
    J Physiol Anthropol Appl Human Sci, 2005 Jul;24(4):267-75.
    PMID: 16079566
    The effect of low-intensity exercise in the heat on thermoregulation and certain biochemical changes in temperate and tropical subjects under poorly and well-hydrated states was examined. Two VO2max matched groups of subjects consisting of 8 Japanese (JS) and 8 Malaysians (MS) participated in this study under two conditions: poorly-hydrated (no water was given) and well-hydrated (3 mL x Kg(-1) body weight of water was provided at onset of exercise, and the 15th, 35th and 55th min of exercise). The experimental room in both countries was adjusted to a constant level (Ta: 31.6+/-0.03 degrees C, rh: 72.3+/-0.13%). Subjects spent an initial 10 min rest, 60 min of cycling at 40% VO2max and then 40 min recovery in the experimental room. Rectal temperatures (Tre) skin temperatures (Tsk), heart rate (HR), heat-activated sweat glands density (HASG), local sweat rate (M sw-back) and percent dehydration were recorded during the test. Blood samples were analysed for plasma glucose and lactate levels.The extent of dehydration was significantly higher in the combined groups of JS (1.43+/-0.08%) compared to MS (1.15+/-0.05%). During exercise M sw-back was significantly higher in JS compared to MS in the well-hydrated condition. The HASG was significantly more in JS compared to MS at rest and recovery. Tre was higher in MS during the test. Tsk was significantly higher starting at the 5th min of exercise until the end of the recovery period in MS compared to JS. In conclusion, tropical natives have lower M sw-back associated with higher Tsk and Tre during the rest, exercise and recovery periods. However, temperate natives have higher M sw-back and lower Tsk and Tre during experiments in a hot environment. This phenomenon occurs in both poorly-hydrated and well-hydrated states with low intensity exercise. The differences in M sw-back, Tsk and Tre are probably due to a setting of the core temperature at a higher level and enhancement of dry heat loss, which occurred during passive heat exposure.
    Matched MeSH terms: Heart Rate
  7. Ong Lai Teik D, Lee XS, Lim CJ, Low CM, Muslima M, Aquili L
    PLoS One, 2016;11(3):e0150447.
    PMID: 26938637 DOI: 10.1371/journal.pone.0150447
    BACKGROUND: There is some evidence to suggest that ginseng and Ginkgo biloba can improve cognitive performance, however, very little is known about the mechanisms associated with such improvement. Here, we tested whether cardiovascular reactivity to a task is associated with cognitive improvement.

    METHODOLOGY/PRINCIPAL FINDINGS: Using a double-blind, placebo controlled, crossover design, participants (N = 24) received two doses of Panax Ginseng (500, 1000 mg) or Ginkgo Biloba (120, 240 mg) (N = 24), and underwent a series of cognitive tests while systolic, diastolic, and heart rate readings were taken. Ginkgo Biloba improved aspects of executive functioning (Stroop and Berg tasks) in females but not in males. Ginseng had no effect on cognition. Ginkgo biloba in females reversed the initial (i.e. placebo) increase in cardiovascular reactivity (systolic and diastolic readings increased compared to baseline) to cognitive tasks. This effect (reversal) was most notable after those tasks (Stroop and Iowa) that elicited the greatest cardiovascular reactivity during placebo. In males, although ginkgo also decreased cardiovascular readings, it did so from an initial (placebo) blunted response (i.e. decrease or no change from baseline) to cognitive tasks. Ginseng, on the contrary, increased cardiovascular readings compared to placebo.

    CONCLUSIONS/SIGNIFICANCE: These results suggest that cardiovascular reactivity may be a mechanism by which ginkgo but not ginseng, in females is associated with certain forms of cognitive improvement.

    TRIAL REGISTRATION: ClinicalTrials.gov NCT02386852.

    Matched MeSH terms: Heart Rate
  8. Batra YK, Al Qattan AR, Ali SS, Qureshi MI, Kuriakose D, Migahed A
    Paediatr Anaesth, 2004 Jun;14(6):452-6.
    PMID: 15153205
    Tracheal intubation in children can be achieved by deep inhalational anaesthesia or an intravenous anaesthetic and a muscle relaxant, suxamethonium being widely used despite several side-effects. Studies have shown that oral intubation can be facilitated safely and effectively in children after induction of anaesthesia with propofol and alfentanil without a muscle relaxant. Remifentanil is a new, ultra-short acting, selective mu-receptor agonist that is 20-30 times more potent than alfentanil. This clinical study was designed to assess whether combination of propofol and remifentanil could be used without a muscle relaxant to facilitate tracheal intubation in children.
    Matched MeSH terms: Heart Rate
  9. Blair GW, Appleton JP, Flaherty K, Doubal F, Sprigg N, Dooley R, et al.
    EClinicalMedicine, 2019 04 24;11:34-43.
    PMID: 31317131 DOI: 10.1016/j.eclinm.2019.04.001
    Background: Lacunar stroke, a frequent clinical manifestation of small vessel disease (SVD), differs pathologically from other ischaemic stroke subtypes and has no specific long-term secondary prevention. Licenced drugs, isosorbide mononitrate (ISMN) and cilostazol, have relevant actions to prevent SVD progression.

    Methods: We recruited independent patients with clinically confirmed lacunar ischaemic stroke without cognitive impairment to a prospective randomised clinical trial, LACunar Intervention-1 (LACI-1). We randomised patients using a central web-based system, 1:1:1:1 with minimisation, to masked ISMN 25 mg bd, cilostazol 100 mg bd, both ISMN and cilostazol started immediately, or both with start delayed. We escalated doses to target over two weeks, sustained for eight weeks. Primary outcome was the proportion achieving target dose. Secondary outcomes included symptoms, safety (haemorrhage, recurrent vascular events), cognition, haematology, vascular function, and neuroimaging. LACI-1 was powered (80%, alpha 0.05) to detect 35% (90% versus 55%) difference between the proportion reaching target dose on one versus both drugs at 55 patients. Registration ISRCTN12580546.

    Findings: LACI-1 enrolled 57 participants between March 2016 and August 2017: 18 (32%) females, mean age 66 (SD 11, range 40-85) years, onset-randomisation 203 (range 6-920) days. Most achieved full (64%) or over half (87%) dose, with no difference between cilostazol vs ISMN, single vs dual drugs. Headache and palpitations increased initially then declined similarly with dual versus single drugs. There was no between-group difference in BP, pulse-wave velocity, haemoglobin or platelet function, but pulse rate was higher (mean difference, MD, 6.4, 95%CI 1.2-11.7, p = 0.02), platelet count higher (MD 35.7, 95%CI 2.8, 68.7, p = 0.03) and white matter hyperintensities reduced more (Chi-square p = 0.007) with cilostazol versus no cilostazol.

    Interpretation: Cilostazol and ISMN are well tolerated when the dose is escalated, without safety concerns, in patients with lacunar stroke. Larger trials with longer term follow-up are justified.

    Funding: Alzheimer's Society (AS-PG-14-033).

    Matched MeSH terms: Heart Rate
  10. Ali SS, Mohamed SFA, Rozalei NH, Boon YW, Zainalabidin S
    Cardiovasc Toxicol, 2019 02;19(1):72-81.
    PMID: 30128816 DOI: 10.1007/s12012-018-9478-7
    Heart failure-associated morbidity and mortality is largely attributable to extensive and unregulated cardiac remodelling. Roselle (Hibiscus sabdariffa) calyces are enriched with natural polyphenols known for antioxidant and anti-hypertensive effects, yet its effects on early cardiac remodelling in post myocardial infarction (MI) setting are still unclear. Thus, the aim of this study was to investigate the actions of roselle extract on cardiac remodelling in rat model of MI. Male Wistar rats (200-300 g) were randomly allotted into three groups: Control, MI, and MI + Roselle. MI was induced with isoprenaline (ISO) (85 mg/kg, s.c) for two consecutive days followed by roselle treatment (100 mg/kg, orally) for 7 days. Isoprenaline administration showed changes in heart weight to body weight (HW/BW) ratio. MI was especially evident by the elevated cardiac injury marker, troponin-T, and histological observation. Upregulation of plasma levels and cardiac gene expression levels of inflammatory cytokines such as interleukin (IL)-6 and IL-10 was seen in MI rats. A relatively high percentage of fibrosis was observed in rat heart tissues with over-expression of collagen (Col)-1 and Col-3 genes following isoprenaline-induced MI. On top of that, cardiomyocyte areas were larger in heart tissues of MI rats with upregulation of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) gene expression, indicating cardiac hypertrophy. Interestingly, roselle supplementation attenuated elevation of plasma troponin-T, IL-6, IL10, and gene expression level of IL-10. Furthermore, reduction of cardiac fibrosis and hypertrophy were observed. In conclusion, roselle treatment was able to limit early cardiac remodelling in MI rat model by alleviating inflammation, fibrosis, and hypertrophy; hence, the potential application of roselle in early adjunctive treatment to prevent heart failure.
    Matched MeSH terms: Heart Failure
  11. Maria Awaluddin S, Noor Ani Ahmad, Balkish Mahadir Naidu, Muslimah Yusof, Mohamad Aznuddin Abd Razak, Mohd Kamal Ariff Abdul Ghani
    Chronic use of non-steroidal anti-inflammatory drugs (NSAIDs) is associated with adverse effects. However, NSAIDs are among the most popular pain killers and easily available over the counter. This study aimed to determine the prevalence of NSAIDs use in Malaysian adults and among those with chronic diseases such as arthritis, kidney disease, hypertension, heart disease and asthma. It also examined the factors associated with NSAIDs use. Data from the National Health Morbidity Survey (NHMS) 2011, a nation-wide survey was analysed. A total of 18231 respondents aged 18 years and above responded to this module. Multivariate logistic regression was used to investigate the association between NSAIDs use and associated factors. The overall prevalence of NSAIDs use among Malaysian adults was 14.2% (95%CI 13.3-15.1). Of the respondents, 4.2% (95%CI 3.8-4.7) took NSAIDs once daily. NSAIDs use was highly associated with those who were ever-told to have arthritis (aOR: 3.03; 95%CI 2.60-3.52) and have difficulty of performing daily activities or work (aOR: 2.06; 95%CI 1.86-2.28). Those who were ever-told to have kidney disease (aOR: 2.36; 95%CI 1.74-3.20), ever-told to have asthma (aOR: 1.36; 95%CI 1.17-1.58), ever-told to have heart disease (aOR: 1.34; 95%CI 1.08-1.65), known hypertension (aOR: 1.22; 95%CI 1.08-1.37) also were associated with NSAIDs use. By socio-demographic profiles, NSAIDs use was positively associated with those who have government benefit scheme or private health insurance (aOR: 1.44; 95%CI 1.31-1.58), higher education level (aOR: 1.35; 95%CI 1.20-1.51), higher household income (aOR: 1.26; 95%CI 1.11-1.44, aOR: 1.12; 95%CI 1.02-1.24), currently working (aOR: 1.25; 95%CI 1.13-1.39) and female (aOR: 1.17; 95%CI 1.07-1.28). NSAIDs use was less likely among those aged 60 years and above (aOR: 0.83; 95% CI 0.72-0.97), Chinese (aOR: 0.41; 95% CI 0.36-0.47) and ‘Others’ ethnicity (aOR: 0.82; 95% CI 0.67-0.99) compared to Malay ethnicity. NSAIDs use is prevalent in Malaysian adults and associated with co-morbidities and higher socio-demographic status, thus appropriate awareness should be promoted and highlighted in the community.
    Study name: National Health and Morbidity Survey (NHMS-2011)
    Matched MeSH terms: Heart Diseases
  12. Kelly AM, Keijzers G, Klim S, Craig S, Kuan WS, Holdgate A, et al.
    Age Ageing, 2021 01 08;50(1):252-257.
    PMID: 32997140 DOI: 10.1093/ageing/afaa121
    OBJECTIVES: To describe the epidemiology and outcomes of non-traumatic dyspnoea in patients aged 75 years or older presenting to emergency departments (EDs) in the Asia-Pacific region.

    METHODS: A substudy of a prospective interrupted time series cohort study conducted at three time points in EDs in Australia, New Zealand, Singapore, Hong Kong and Malaysia of patients presenting to the ED with dyspnoea as a main symptom. Data were collected over three 72-h periods and included demographics, co-morbidities, mode of arrival, usual medications, ED investigations and treatment, ED diagnosis and disposition, and outcome. The primary outcomes of interest are the epidemiology and outcome of patients aged 75 years or older presenting to the ED with dyspnoea.

    RESULTS: 1097 patients were included. Older patients with dyspnoea made up 1.8% [95% confidence interval (CI) 1.7-1.9%] of ED presentations. The most common diagnoses were heart failure (25.3%), lower respiratory tract infection (25.2%) and chronic obstructive pulmonary disease (17.6%). Hospital ward admission was required for 82.6% (95% CI 80.2-84.7%), with 2.5% (95% CI 1.7-3.6%) requiring intensive care unit (ICU) admission. In-hospital mortality was 7.9% (95% CI 6.3-9.7%). Median length of stay was 5 days (interquartile range 2-8 days).

    CONCLUSION: Older patients with dyspnoea make up a significant proportion of ED case load, and have a high admission rate and significant mortality. Exacerbations or worsening of pre-existing chronic disease account for a large proportion of cases which may be amenable to improved chronic disease management.

    Matched MeSH terms: Heart Failure
  13. Baharudin Shaharuddin A, Abdul Aziz NS, Ahmad MH, Manjit Singh JS, Chan YY, Palaniveloo L, et al.
    Geriatr Gerontol Int, 2020 Dec;20 Suppl 2:68-72.
    PMID: 33370864 DOI: 10.1111/ggi.13962
    AIM: The rise in the prevalence of abdominal obesity (AO), in particular, has become a major concern as it contributes to diabetes, hypertension, high cholesterol, heart disease and certain types of cancer. The aim of this study is to determine the prevalence and associated factors of AO among older adults aged ≥60 years in Malaysia.

    METHODS: This was a nationwide cross-sectional study using two-stage stratified random sampling. In total, 3977 older adults aged ≥60 years were involved in this study. Socio-demography characteristics were obtained using self-administered questionnaire. AO was measured using waist circumference and classified according to the cut-off values of ≥90 cm for men and ≥80 cm for women based on the WHO recommendation. Descriptive and multiple logistic regression analysis using a complex sample design were performed for data analysis.

    RESULTS: Our findings showed that 2371 (67.3%) older adults had AO. Older adults who were from urban areas (69.7%), of women (78.4%), married (66.7%), with tertiary education (73.6%) and unemployed (70.9%) had the highest prevalence of AO. Those from urban areas (adjusted odds ratio [aOR] = 1.29), women (aOR = 3.12), unemployed (aOR = 1.14), diagnosed with hypertension (aOR = 1.56) and diabetes mellitus (aOR = 2.08) were also significantly associated with a higher risk of AO.

    CONCLUSIONS: This study identified several risk factors that are associated with AO among older adults in Malaysia. Such information is important and needed to improve the healthcare system systematically, enable nutrition screening and appropriate intervention to combat the growing AO in Malaysia. Geriatr Gerontol Int 2020; 20: 68-72.

    Matched MeSH terms: Heart Diseases
  14. Ruszymah BH, Nabishah BM, Aminuddin S, Khalid BA
    Clin Exp Hypertens, 1995 Apr;17(3):575-91.
    PMID: 7613529
    Glycyrrhizic acid (GCA) the active component of liquorice acts by inhibiting 11 beta-hydroxysteroid dehydrogenase (11 beta-OHSD) which catalyses the reversible conversion of cortisol to cortisone. The aim of this study was to examine the effect of GCA on pulmonary arterial pressure. Male Sprague-Dawley rats (200g) received drinking water containing 0.1 mg/ml and 1.0 mg/ml GCA for 12 weeks. Tail blood pressure (BP) was recorded every three weeks and serum Na+ and K+ were measured at the beginning and the end of the experiment. Right atrial pressure (RAP) were measured at the end of 12 weeks just before the animals were sacrificed. Lung tissues were taken for histological examination using the elastic-van Gieson (EVG) staining method. There was a significant increase in tail BP in GCA treated rats compared to controls, for both dosages used. This was associated with an increase in serum Na+ and a decrease in K+ level. The mean RAP increased significantly from 2.69 +/- 0.23 mmHg to 4.47 +/- 0.32 mmHg (P < 0.001) in 0.1 mg/ml GCA treated rats and 6.86 +/- 0.54 mmHg (P < 0.0001) in rats receiving 1.0 mg/ml GCA in their drinking water. Histological examination showed increased thickness of pulmonary arterial wall (P < 0.0001). In conclusion GCA caused an increase in right atrial pressure as well as thickening of the pulmonary vessels suggesting pulmonary hypertension.
    Matched MeSH terms: Heart Atria
  15. Lloyd M, Reynolds D, Sheldon T, Stromberg K, Hudnall JH, Demmer WM, et al.
    Heart Rhythm, 2017 02;14(2):200-205.
    PMID: 27871854 DOI: 10.1016/j.hrthm.2016.11.016
    BACKGROUND: The Micra transcatheter pacemaker was designed to have similar functionality to conventional transvenous VVIR pacing systems. It provides rate adaptive pacing using a programmable 3-axis accelerometer designed to detect patient activity in the presence of cardiac motion.

    OBJECTIVE: The purpose of this study was to evaluate the system's performance during treadmill tests to maximum exertion in a subset of patients within the Micra Transcatheter Pacing Study.

    METHODS: Patients underwent treadmill testing at 3 or 6 months postimplant with algorithm programming at physician discretion. Normalized sensor rate (SenR) relative to the programmed upper sensor rate was modeled as a function of normalized workload in metabolic equivalents (METS) relative to maximum METS achieved during the test. A normalized METS and SenR were determined at the end of each 1-minute treadmill stage. The proportionality of SenR to workload was evaluated by comparing the slope from this relationship to the prospectively defined tolerance margin (0.65-1.35).

    RESULTS: A total of 69 treadmill tests were attempted by 42 patients at 3 and 6 months postimplant. Thirty tests from 20 patients who completed ≥4 stages with an average slope of 0.86 (90% confidence interval 0.77-0.96) confirmed proportionality to workload. On an individual test basis, 25 of 30 point estimates (83.3%) had a normalized slope within the defined tolerance range (range 0.46-1.08).

    CONCLUSION: Accelerometer-based rate adaptive pacing was proportional to workload, thus confirming rate adaptive pacing commensurate to workload is achievable with an entirely intracardiac pacing system.

    Matched MeSH terms: Heart Rate
  16. Azman BZ, Ankathil R, Siti Mariam I, Suhaida MA, Norhashimah M, Tarmizi AB, et al.
    Singapore Med J, 2007 Jun;48(6):550-4.
    PMID: 17538755
    This study was designed to evaluate the karyotype pattern, clinical features and other systemic anomalies of patients with Down syndrome in Malaysia.
    Matched MeSH terms: Heart Defects, Congenital
  17. Noor Zairul M, Khairul Faizi A
    Singapore Med J, 2006 Oct;47(10):892-6.
    PMID: 16990966
    INTRODUCTION: The purpose of this study is to assess whether the newly-developed VBM (Medizintechnik GmbH, Sulz, Germany) laryngeal tube (LT) is able to provide adequate ventilation and oxygenation to patients with an unstable neck and require airway management. The haemodynamic responses to insertion between the two devices were also studied. We compared the LT to the laryngeal mask airway (LMA) as an alternative airway management tool in adult patients with unstable neck and who underwent intubation with manual in-line neck stabilisation.
    METHODS: A randomised single-blinded prospective study was conducted involving a total of 40 American Society of Anesthesiology I and II pre-medicated patients who were divided into two groups, LT or LMA, for airway management during elective surgery. There were 20 patients for each group. After pre-oxygenation, anaesthesia was induced using intravenous (i.v.) fentanyl and i.v. propofol. The neuromuscular blockade was produced with either i.v. vecuronium or i.v. atracurium. The LT or LMA was inserted after neuromuscular blockade was confirmed using a peripheral nerve stimulator (train-of-four 1). A size 3, 4 or 5 LT or a size 3 or 4 LMA was inserted while the patient's head and neck were being stabilised by an assistant who held the sides of the neck and the mastoid processes (manual in-line stabilisation). If it was not possible to ventilate the lungs, or if end-tidal carbon dioxide and/or chest movement did not indicate a patent airway, the LT or LMA was removed. After three failed attempts, the study was terminated and the airway was secured in the most suitable manner determined by the anaesthetist. After successful placement of LT or LMA, anaesthesia was maintained with 66 percent nitrous oxide in oxygen and 2 minimum alveolar concentration sevoflurane. All patients received standard anaesthesia monitoring. The ease of insertion, the number of attempts needed to successfully secure the airway, episodes of desaturation (less than 95 percent) and end-tidal carbon dioxide at various time intervals were studied. The haemodynamic parameters such as systolic blood pressure, diastolic blood pressure, mean arterial pressure and heart rate at different time intervals were also studied.
    RESULTS: The study showed a statistically significant difference in time required for successful insertion between the groups; time required for LT was 24.8 +/- 7.7 seconds and LMA was 36.1 +/- 17.3 seconds (p-value equals 0.01). Both groups had no statistical differences (p-value is greater than 0.05) in number of attempts needed to achieve a patent airway, and the successful insertion rate was 100 percent for both groups. There were also no statistical differences in the haemodynamic response to insertion and the end-tidal carbon dioxide in this study.
    CONCLUSION: We conclude that, under anaesthesia, the LT was a valuable and better alternative to LMA for ventilation and airway management when the patient's head and neck are stabilised by the manual in-line method.
    Matched MeSH terms: Heart Rate
  18. Sharda P, Haspani S, Idris Z
    Asian J Neurosurg, 2014 Oct-Dec;9(4):203-12.
    PMID: 25685217 DOI: 10.4103/1793-5482.146605
    OBJECTIVE: The objective of this prospective cohort study was to analyse the characteristics of severe Traumatic Brain Injury (TBI) in a regional trauma centre Hospital Kuala Lumpur (HKL) along with its impact of various prognostic factors post Decompressive Craniectomy (DC).
    MATERIALS AND METHODS: Duration of the study was of 13 months in HKL. 110 consecutive patients undergoing DC and remained in our centre were recruited. They were then analysed categorically with standard analytical software.
    RESULTS: Age group have highest range between 12-30 category with male preponderance. Common mechanism of injury was motor vehicle accident involving motorcyclist. Univariate analysis showed statistically significant in referral area (P = 0.006). In clinical evaluation statistically significant was the motor score (P = 0.040), pupillary state (P = 0.010), blood pressure stability (P = 0.013) and evidence of Diabetes Insipidus (P < 0.001). In biochemical status the significant statistics included evidence of coagulopathy (P < 0.001), evidence of acidosis (P = 0.003) and evidence of hypoxia (P = 0.030). In Radiological sector, significant univariate analysis proved in location of the subdural clot (P < 0.010), location of the contusion (P = 0.045), site of existence of both type of clots (P = 0.031) and the evidence of edema (P = 0.041). The timing of injury was noted to be significant as well (P = 0.061). In the post operative care was, there were significance in the overall stability in intensive care (P < 0.001), the stability of blood pressure, cerebral perfusion pressure, pulse rates and oxygen saturation (all P < 0.001)seen individually, post operative ICP monitoring in the immediate (P = 0.002), within 24 hours (P < 0.001) and within 24-48 hours (P < 0.001) period, along with post operative pupillary size (P < 0.001) and motor score (P < 0.001). Post operatively, radiologically significant statistics included evidence of midline shift post operatively in the CT scan (P < 0.001). Multivariate logistic regression with stepwise likelihood ratio (LR) method concluded that hypoxia post operatively (P = 0.152), the unmaintained Cerebral Perfusion Pressure (CPP) (P = 0.007) and unstable blood pressure (BP) (P = <0.001). Poor outcome noted 10.2 times higher in post operative hypoxia [OR10.184; 95% CI: 0.424, 244.495]. Odds of having poor outcome if CPP unmaintained was 13.8 times higher [OR: 13.754; CI: 2.050, 92.301]. Highest predictor of poor outcome was the unstable BP, 32 times higher [OR 31.600; CI: 4.530, 220440].
    CONCLUSION: Our series represent both urban and rural population, noted to be the largest series in severe TBI in this region. Severe head injury accounts for significant proportion of neurosurgical admissions, resources with its impact on socio-economic concerns to a growing population like Malaysia. This study concludes that the predictors of outcome in severe TBI post DC were postoperative hypoxia, unmaintained cerebral perfusion pressure and unstable blood pressure as independent predictors of poor outcome. Key words: Decompressive craniectomy, prognostication of decompressive craniectomy, prognostication of severe head injury, prognostication of traumatic brain injury, severe head injury, severe traumatic brain injury, traumatic brain injury.
    KEYWORDS: Decompressive craniectomy; prognostication of decompressive craniectomy; prognostication of severe head injury; prognostication of traumatic brain injury; severe head injury; severe traumatic brain injury; traumatic brain injury
    Matched MeSH terms: Heart Rate
  19. Adikari AMGCP, Appukutty M, Kuan G
    Nutrients, 2020 Jun 29;12(7).
    PMID: 32610465 DOI: 10.3390/nu12071920
    Competitive football players who undergo strenuous training and frequent competitions are more vulnerable to psychological disorders. Probiotics are capable of reducing these psychological disorders. The present study aimed to determine the effect of daily probiotics supplementation on anxiety induced physiological parameters among competitive football players. The randomized, double-blinded, placebo-controlled trial was conducted on 20 male footballers who received either probiotics (Lactobacillus Casei Shirota strain 3 × 1010 colony forming units (CFU) or a placebo drink over eight weeks. Portable biofeedback devices were used to measure the electroencephalography, heart rate, and electrodermal responses along with cognitive tests at the baseline, week 4, and week 8. Data were statistically analyzed using mixed factorial ANOVA and results revealed that there is no significant difference between the probiotic and placebo groups for heart rate (61.90 bpm ± 5.84 vs. 67.67 bpm ± 8.42, p = 0.09) and electrodermal responses (0.27 µS ± 0.19 vs. 0.41 µS ± 0.12, p = 0.07) after eight weeks. Similarly, brain waves showed no significant changes during the study period except for the theta wave and delta wave at week 4 (p < 0.05). The cognitive test reaction time (digit vigilance test) showed significant improvement in the probiotic group compared to the placebo (p < 0.05). In conclusion, these findings suggest that daily probiotics supplementation may have the potential to modulate the brain waves namely, theta (relaxation) and delta (attention) for better training, brain function, and psychological improvement to exercise. Further research is needed to elucidate the mechanism of current findings.
    Matched MeSH terms: Heart Rate
  20. Loganath K, Craig NJ, Everett RJ, Bing R, Tsampasian V, Molek P, et al.
    JAMA, 2025 Jan 21;333(3):213-221.
    PMID: 39466640 DOI: 10.1001/jama.2024.22730
    IMPORTANCE: Development of myocardial fibrosis in patients with aortic stenosis precedes left ventricular decompensation and is associated with an adverse long-term prognosis.

    OBJECTIVE: To investigate whether early valve intervention reduced the incidence of all-cause death or unplanned aortic stenosis-related hospitalization in asymptomatic patients with severe aortic stenosis and myocardial fibrosis.

    DESIGN, SETTING, AND PARTICIPANTS: This prospective, randomized, open-label, masked end point trial was conducted between August 2017 and October 2022 at 24 cardiac centers across the UK and Australia. Asymptomatic patients with severe aortic stenosis and myocardial fibrosis were included. The final date of follow-up was July 26, 2024.

    INTERVENTION: Early valve intervention with transcatheter or surgical aortic valve replacement or guideline-directed conservative management.

    MAIN OUTCOMES AND MEASURES: The primary outcome was a composite of all-cause death or unplanned aortic stenosis-related hospitalization in a time-to-first-event intention-to-treat analysis. There were 9 secondary outcomes, including the components of the primary outcome and symptom status at 12 months.

    RESULTS: The trial enrolled 224 eligible patients (mean [SD] age, 73 [9] years; 63 women [28%]; mean [SD] aortic valve peak velocity of 4.3 [0.5] m/s) of the originally planned sample size of 356 patients. The primary end point occurred in 20 of 113 patients (18%) in the early intervention group and 25 of 111 patients (23%) in the guideline-directed conservative management group (hazard ratio, 0.79 [95% CI, 0.44-1.43]; P = .44; between-group difference, -4.82% [95% CI, -15.31% to 5.66%]). Of 9 prespecified secondary end points, 7 showed no significant difference. All-cause death occurred in 16 of 113 patients (14%) in the early intervention group and 14 of 111 (13%) in the guideline-directed group (hazard ratio, 1.22 [95% CI, 0.59-2.51]) and unplanned aortic stenosis hospitalization occurred in 7 of 113 patients (6%) and 19 of 111 patients (17%), respectively (hazard ratio, 0.37 [95% CI, 0.16-0.88]). Early intervention was associated with a lower 12-month rate of New York Heart Association class II-IV symptoms than guideline-directed conservative management (21 [19.7%] vs 39 [37.9%]; odds ratio, 0.37 [95% CI, 0.20-0.70]).

    CONCLUSIONS AND RELEVANCE: In asymptomatic patients with severe aortic stenosis and myocardial fibrosis, early aortic valve intervention had no demonstrable effect on all-cause death or unplanned aortic stenosis-related hospitalization. The trial had a wide 95% CI around the primary end point, with further research needed to confirm these findings.

    TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03094143.

    Matched MeSH terms: Heart Valve Prosthesis Implantation
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