Displaying publications 921 - 940 of 989 in total

Abstract:
Sort:
  1. Leela Chellamuthu, Ho, Siew Eng, Joel Hoashea Munjan, Susanna Emmanuel Vijayan
    MyJurnal
    Aim: This study aims to determine the perception of adult patients towards the importance of prevention of coronary artery diseases (CAD) in order to raise awareness on the risk of CAD.
    Method: 80 adults between 18-40 years old were enrolled in the out-patient department at a private hospital. The awareness and perception of the importance of preventing CAD were assessed using a questionnaire.
    Result: The level of perception on the importance of prevention of CAD was quite good. 75% of the subjects (n = 60) recorded good level of perception meaning they are aware of the importance of prevention of CAD. 22.5% of the subjects (n = 18) recorded a satisfactory level of perception while only 2.5% of the subjects (n = 2) recorded a poor level of perception towards the importance of prevention of CAD. Majority of the subjects had good perception on importance of a balanced diet, exercise and active lifestyle.
    Conclusion: In conclusion it can be said that although people are aware of the risk posed by CAD, recommendations such as proper health teachings and guide lines are still required to ensure that the community is able to understand the risk and take preventive measure in order to reduce the risk of obtaining the risk of heart disease.
    Study site: Outpatient clinic, private hospital, Malaysia
    Matched MeSH terms: Heart Diseases
  2. Muthaian R, Pakirisamy RM, Parasuraman S, Raveendran R
    J Pharmacol Pharmacother, 2017 2 7;7(4):159-164.
    PMID: 28163536 DOI: 10.4103/0976-500X.195898
    OBJECTIVE: To investigate the association of hypertension coexisting with diabetes mellitus with oxidative stress and inflammation in the kidneys of streptozotocin (STZ)-induced diabetic rats.

    MATERIALS AND METHODS: Male Wistar rats were used for the experiments. Blood glucose (BG), urea, blood pressure (BP), and heart rate (HR) were analyzed before and 48 h after STZ injection. Further, these parameters were monitored up to 3 months of diabetes induction. Subsequently, the inflammatory markers (C-reactive protein, tumor necrosis factor-alpha, and nitrate) and oxidative stress markers were estimated after 3 months of diabetes induction in the kidney homogenate. Histological analysis of renal tissue was also carried out.

    RESULTS: Linear elevation of BG, urea, mean arterial pressure (MAP), and HR was observed up to 3 months of diabetes induction. In the same manner, inflammatory and oxidative stress markers were also found to be significantly increased. Notably, the histological analysis revealed the signs of nephropathy such as increased mesangial cell number, thickness of basement membrane, and renal artery. Inflammatory and oxidative stress markers positively correlated with elevated BP and BG, but the correlation was better with BP rather than BG.

    CONCLUSION: Hypertension has a strong implication in the increased oxidative stress and inflammation of diabetic kidney at the very early stage of diabetes mellitus.

    Matched MeSH terms: Heart Rate
  3. Wong HT, Chee KH, Chong AW
    Eur Arch Otorhinolaryngol, 2017 Jun;274(6):2601-2606.
    PMID: 28243782 DOI: 10.1007/s00405-017-4491-1
    Obstructive sleep apnea (OSA) is a growing health hazard in the United States and worldwide. OSA is now recognized as a disorder with systemic manifestations and its association with obesity and adverse cardiovascular consequences. There is increasing evidence that OSA may be associated with systemic hypertension and an increased incidence of stroke, heart failure, myocardial infarction, and arrhythmias. Less information is available about the association between OSA and pulmonary hypertension (PH). We therefore conduct this study to look at the prevalence of the pulmonary hypertension in obstructive sleep apnea patient and to identify risk factors leading to pulmonary hypertension among OSA patient. We studied and analyzed all OSA patient confirmed by polysomnograph in the year 2015. Twenty-five patients with OSA were included in this study with prevalence of pulmonary hypertension of 16%. Univariate analysis of various factors revealed a statistically significant association between having the lowest SpO2 of <70% and pulmonary hypertension (p = 0.016). There were no statistically significant associations between age, gender, smoking status, hypertension, body mass index (BMI), or apnea-hypopnea index (AHI) with occurrence of pulmonary hypertension. AHI is not a good predictor for pulmonary hypertension. The real value of using AHI to predict the health risk of OSA is doubtful. We recommend routine echocardiogram among OSA patient. The objective information in the echocardiogram provides evidence for counseling of patient with disease of OSA and hence hopefully can improve compliance of patient to treatment especially usage of CPAP.
    Matched MeSH terms: Heart Failure
  4. Samangouei P, Crespo-Avilan GE, Cabrera-Fuentes H, Hernández-Reséndiz S, Ismail NI, Katwadi KB, et al.
    Cond Med, 2018 Aug;1(5):239-246.
    PMID: 30338314
    Acute myocardial infarction (AMI) and the heart failure (HF) that often follows are among the leading causes of death and disability worldwide. As such novel therapies are needed to reduce myocardial infarct (MI) size, and preserve left ventricular (LV) systolic function in order to reduce the propensity for HF following AMI. Mitochondria are dynamic organelles that can undergo morphological changes by two opposing processes, mitochondrial fusion and fission. Changes in mitochondrial morphology and turnover are a vital part of maintaining mitochondrial health, DNA stability, energy production, calcium homeostasis, cellular division, and differentiation, and disturbances in the balance of fusion and fission can predispose to mitochondrial dysfunction and cell death. Changes in mitochondrial morphology are governed by mitochondrial fusion proteins (Mfn1, Mfn2 and OPA1) and mitochondrial fission proteins (Drp1, hFis1, and Mff). Recent experimental data suggest that mitochondria undergo fission during acute ischemia/reperfusion injury (IRI), generating fragmented dysfunctional mitochondrial and predisposing to cell death. We and others have shown that genetic and pharmacological inhibition of the mitochondrial fission protein Drp1 can protect cardiomyocytes from acute IRI and reduce MI size. Novel components of the mitochondrial fission machinery, mitochondrial dynamics proteins of 49 kDa (MiD49) and mitochondrial dynamics proteins of 51 kDa (MiD51), have been recently described, which have been shown to mediating mitochondrial fission by targeting Drp1 to the mitochondrial surface. In this review article, we provide an overview of MiD49 and MiD51, and highlight their potential as novel therapeutic targets for treating cardiovascular diseases such as AMI, anthracycline cardiomyopathy, and pulmonary arterial hypertension.
    Matched MeSH terms: Heart Failure
  5. Norhuzaimah, J., Liu, C. Y., Muhammad, M., Joanna Ooi ,S. M.
    MyJurnal
    During induction of general anaesthesia, the act of laryngoscopy and tracheal intubation stimulates the sympathetic
    nervous system resulting in an increase in blood pressure and heart rate which may be harmful especially in elderly
    patients with pre-existing ischaemic heart disease. Several drugs have therefore been used to obtund this increase
    including esmolol, nicardipine, magnesium sulphate and lignocaine. This prospective, double blind randomised
    clinical trial compared the efficacy of magnesium sulphate and esmolol in attenuating haemodynamic responses to
    laryngoscopy and tracheal intubation. One hundred and twenty six ASA I-II patients scheduled for elective surgery
    requiring general anaesthesia with tracheal intubation were enrolled and randomised into two groups: Group 1 (n =
    67) received MgSO4 40 mg/kg diluted in 100 ml normal saline administered over ten minutes, whereas Group 2 (n =
    59) received a bolus of esmolol 1.0 mg/kg diluted to 10 ml. Systolic and diastolic blood pressures and heart rate were
    recorded every minute for subsequent 10 minutes following laryngoscopy and tracheal intubation. Attenuation of the
    mean systolic and diastolic blood pressures following laryngoscopy and tracheal intubation was significantly larger
    in Group 2 compared to Group 1. Patients in Group 2 had significantly better suppression of heart rate response
    compared to Group 1 during the first four minutes after laryngoscopy and tracheal intubation (p
    Matched MeSH terms: Heart Rate
  6. Hébert-Losier K, Yin NS, Beaven CM, Tee CCL, Richards J
    J Electromyogr Kinesiol, 2019 Feb;44:36-45.
    PMID: 30496944 DOI: 10.1016/j.jelekin.2018.11.009
    Kinesiology-type tape (KTT) has become popular in sports for injury prevention, rehabilitation, and performance enhancement. Many cyclists use patella KTT; however, its benefits remain unclear, especially in uninjured elite cyclists. We used an integrated approach to investigate acute physiological, kinematic, and electromyographic responses to patella KTT in twelve national-level male cyclists. Cyclists completed four, 4-minute submaximal efforts on an ergometer at 100 and 200 W with and without patella KTT. Economy, energy cost, oxygen cost, heart rate, efficiency, 3D kinematics, and lower-body electromyography signals were collected over the last minute of each effort. Comfort levels and perceived change in knee stability and performance with KTT were recorded. The effects of KTT were either unclear, non-significant, or clearly trivial on all collected physiological and kinematic measures. KTT significantly, clearly, and meaningfully enhanced vastus medialis peak, mean, and integrated electromyographic signals, and vastus medialis-to-lateralis activation. Electromyographic measures from biceps femoris and biceps-to-rectus femoris activation ratio decreased in either a significant or clinically meaningful manner. Despite most cyclists perceiving KTT as comfortable, increasing stability, and improving performance, the intervention exerted no considerable effects on all physiological and kinematic measures. KTT did alter neuromuscular recruitment, which has potential implications for injury prevention.
    Matched MeSH terms: Heart Rate
  7. Choy KW, Murugan D, Leong XF, Abas R, Alias A, Mustafa MR
    Front Pharmacol, 2019;10:1295.
    PMID: 31749703 DOI: 10.3389/fphar.2019.01295
    Cardiovascular diseases (CVDs) such as angina, hypertension, myocardial ischemia, and heart failure are the leading causes of morbidity and mortality worldwide. One of the major transcription factors widely associated with CVDs is nuclear factor-kappa B (NFκB). NFκB activation initiates the canonical and non-conical pathways that promotes activation of transcription factors leading to inflammation, such as leukocyte adhesion molecules, cytokines, and chemokines. Flavonoids are bioactive polyphenolic compounds found abundantly in various fruits, vegetables, beverages (tea, coffee), nuts, and cereal products with cardiovascular protective properties. Flavonoids can be classified into six subgroups based on their chemical structures: flavanones, flavones, flavonols, flavan-3-ols, isoflavones, and anthocyanidins. As NFκB inhibitors, these flavonoids may modulate the expression of pro-inflammatory genes leading to the attenuation of the inflammatory responses underlying various cardiovascular pathology. This review presents an update on the anti-inflammatory actions of flavonoids via inhibition of NFκB mechanism supporting the therapeutic potential of these natural compounds in various CVDs.
    Matched MeSH terms: Heart Failure
  8. Sunil M, Hieu HQ, Arjan Singh RS, Ponnampalavanar S, Siew KSW, Loch A
    Ann Clin Microbiol Antimicrob, 2019 Dec 17;18(1):43.
    PMID: 31847847 DOI: 10.1186/s12941-019-0341-x
    BACKGROUND: Staphylococcus has replaced streptococcus as the most common cause of infective endocarditis (IE) in developed health care systems. The trend in developing countries is less clear.

    AIM: To examine the epidemiological trends of infective endocarditis in a developing nation.

    METHODS: Single-centre, retrospective study of patients admitted with IE to a tertiary hospital in Malaysia over a 12-year period.

    RESULTS: The analysis included 182 patients (n = 153 Duke's definite IE, n = 29 possible IE). The mean age was 51 years. Rheumatic heart disease was present in 42%, while 7.6% were immunocompromised. IE affected native valves in 171 (94%) cases. Health-care associated IE (HCAIE) was recorded in 68 (37.4%). IE admission rates increased from 25/100,000 admissions (2012) to 59/100,000 admissions (2017). At least one major complication on admission was detected in 59 (32.4%) patients. Left-sided IE was more common than right-sided IE [n = 159 (87.4%) vs. n = 18 (9.9%)]. Pathogens identified by blood culture were staphylococcus group [n = 58 (40.8%)], streptococcus group [n = 51 (35.9%)] and Enterococcus species [n = 13 (9.2%)]. staphylococcus infection was highest in the HCAIE group. In-hospital death occurred in 65 (35.7%) patients. In-hospital surgery was performed for 36 (19.8%) patients. At least one complication was documented in 163 (85.7%).

    CONCLUSION: Staphylococcus is the new etiologic champion, reflecting the transition of the healthcare system. Streptococcus is still an important culprit organism. The incidence rate of IE appears to be increasing. The rate of patients with underlying rheumatic heart disease is still high.

    Matched MeSH terms: Rheumatic Heart Disease
  9. Gujjar KR, van Wijk A, Kumar R, de Jongh A
    J Anxiety Disord, 2019 03;62:100-108.
    PMID: 30717830 DOI: 10.1016/j.janxdis.2018.12.001
    BACKGROUND: Although Virtual Reality Exposure Therapy (VRET) has proven to be effective in the treatment of various subtypes of specific phobia, there is limited evidence of its role in the treatment of dental phobia.

    METHOD: A single-blind RCT was conducted among 30 randomized patients with dental phobia to either VRET or informational pamphlet (IP) condition. Primary outcome anxiety measures (VAS-A, MDAS and DFS) were evaluated at baseline, pre- and post-intervention, 1-week, 3-months and 6-months follow-up. Secondary outcome measures assessed were pre-post behavioral avoidance, temporal variations of heart rate and VR-experience during and post-VRET, and dental treatment acceptance in both conditions at 6-month follow-up.

    RESULTS: Intention to treat analysis, using a repeated measures MANOVA, revealed a multivariate interaction effect between time and condition (p = 0.015) for all primary outcome measures (all ps 

    Matched MeSH terms: Heart Rate
  10. Wong YL, Mohd Amin J
    JUMMEC, 2005;8:53-58.
    Malaysia, like many aspiring developing countries, is undergoing a health transition that has seen the concomitant decrease in communicable diseases and increase in chronic diseases due to urbanization, modernization and ageing population. Health in the Malaysian society will thus increasingly focus on emerging problems that are both chronic and infectious in nature, such as, heart disease, diabetes, cancer, mental health, hepatitis and HIV/AIDS. Re-emerging diseases previously well-controlled, such as, tuberculosis for instance is another addition to these immediate health issues facing Malaysian society today. Despite the tremendous health gains and above average health status that Malaysians now enjoy, we are compelled to take stock of these urgent issues as well as to anticipate and handle serious challenges to our health in the 21st century. In this paper, we review the changing trends and discuss related challenges in disease pattern, environmental health, demographic impacts on health, migration influxes and health, effects of globalization on health, mental health and wellness as well as fundamental access and equality in health care. Being proactive, resilient and innovative, Malaysian society would forge ahead towards our Vision for Health in this new era. KEYWORDS: Society and health, health trends and issues, Vision for Health, Malaysia
    Matched MeSH terms: Heart Diseases
  11. Satirah Zainalabidin, Siti Nor Farhanah Sh Nor Shabidin, Siti Balkis Budin
    Sains Malaysiana, 2016;45:207-214.
    Nicotine has been identified as one of the causal factor for oxidative stress, hypertension and hyperlipidemia. Roselle has been widely studied for its potential as an antioxidant, antihyperlipidemic and antihypertensive. However, no studies have been done to investigate if roselle could diminish the oxidative stress caused by nicotine which could further lead to cardiac damages. Thus, this study was aimed to investigate the effect of roselle extract (HSE) on blood pressure, serum lipid profile, oxidative stress marker levels and histological changes to the heart in nicotine-treated rats. A total of 21 Sprague-Dawley rats were randomly divided into 3 groups (n=7 per group): Control group received normal saline (0.5 mL/day, i.p); nicotine group received 0.6 mg/kg/BW nicotine (i.p); and treated group received 100 mg/kg/b.w HSE through oral force feeding followed with 0.6 mg/kg/b.w nicotine (i.p) for 21 consecutive days. The results showed that HSE significantly (p>0.05) reduced the heart rate but no effect to the blood pressure. For lipid profile study, HSE increased the high-density lipoprotein concentration significantly (p<0.05) in rats given with nicotine, without any significant changes in total cholesterol, triglyceride and low-density lipoprotein (LDL) concentration. Besides, HSE treatment was also found to reverse malondialdehyde (MDA) level, superoxide dimustase (SOD) enzyme activity and protein concentration significantly (p<0.05) in nicotine-treated rats. In summary, these results indicated that HSE is an effective antioxidant against oxidative damage in heart caused by nicotine, but not as antihyperlipidemic and antihypertensive agent in this rat model.
    Matched MeSH terms: Heart Rate
  12. Ahzad Hadi Ahmad, Rabiatul Basria S.M.N. Mydin, Nur Ain Nisrina Roan, Abdul Rahman Azhari, Narazah Mohd Yusoff
    MyJurnal
    Advanced parental age is a risk factor for chromosomal abnormalities in their offspring. Trisomy X or Triple X syn- drome has previously been reported with advanced maternal age. Here we report two (2) cases of Trisomy X with paternal age as risk factor. Generally, Trisomy X individuals show variable physical and psychological manifesta- tions. However, both cases reported here have advanced paternal age as a risk factor; 55 years old (46 years old at conception) for Case 1 with patient having right eye squint, beaked nose, Posterior Misalignment Type Ventricular Septal Defect (PMVSD) and small Patent Ductus Arteriosus (PDA) with failure to thrive and 49 years old (45 years old at conception) for Case 2 with speech delay and protruding tongue. In view of that, advanced paternal age could possibly contribute the accumulation of de novo mutations in germ line mosaicism.

    Matched MeSH terms: Heart Septal Defects, Ventricular
  13. Leow SN, Tang WS, Pararajasingam RP, Ee WS
    Malays Fam Physician, 2020;15(3):35-42.
    PMID: 33329861
    Introduction: Pre-pregnancy care (PPC) is an important part of diabetic care among females in the reproductive age group, as it improves feto-maternal outcomes.

    Objective: We aimed to assess female diabetic patients' perception of PPC and family planning prior to PPC care.

    Methods: This was an observational, cross-sectional survey performed from June 2019 to September 2019, using universal sampling of registered female diabetic patients who fit the inclusion criteria prior to integrated PPC care. A self-administered questionnaire was used to assess patients' perception of PPC.

    Results: A total of 67 patients were recruited for the study. Only 39.4% (n=26) of the patients had heard of PPC. In our study, Code 1 contraception included those methods with a Pearl index of ≤9. Code 2 & 3 contraception included those methods with a Pearl index of >9. Only one-third of patients, 29.9% (n=20), were using Code 1 contraception, although the majority, 79.1% (n=53), felt that they had completed their family. 45 patients (68.2%) felt that they were at risk of developing complications if they were to become pregnant, and 46 patients (69.7%) felt that their health condition was not suitable for another pregnancy. However, only 31.1% (n=14) and 34.8% (n=16) of these patients were using Code 1 contraception, respectively. There were 30 patients (65.2%) who perceived that their health was not suitable for another pregnancy but were only using Code 2 or 3 contraception.

    Conclusion: The patients' perception of PPC was poor. Patients had an inadequate knowledge of the effectiveness of their current contraceptive practice in relation to their intentions for further pregnancy and their self-perceived risk in case of future conception. We suggest that integration of PPC into routine follow-ups for other high-risk medical diseases, such as hypertension, heart disease, and epilepsy, be considered in future practice.
    Matched MeSH terms: Heart Diseases
  14. Mat Rosly M, Halaki M, Mat Rosly H, Cuesta V, Hasnan N, Davis GM, et al.
    Games Health J, 2017 Oct;6(5):279-289.
    PMID: 28968153 DOI: 10.1089/g4h.2017.0028
    OBJECTIVE: Commercially available exergames that are for wheelchair-bound individuals with spinal cord injury (SCI) are scarce. This study sought to identify exergames for individuals with SCI that are "dose-potent" for health benefits.

    MATERIALS AND METHODS: Six participants with SCI were recruited for a pilot study to investigate the exercise intensity of selected exergames (Move Tennis, Move Boxing, and Move Gladiator Duel) for the potential to improve health. Issues relating to exergaming for individuals with SCI were identified, and a Move Kayaking exergame was conceived using relevant design processes in an iterative manner. These processes included the following: participant needs and requirements, system requirements (hardware), system architecture (physical and operational views), and integration and verification of the finished system. Emphasis was given to operational and physical designs of the Move Kayaking exergame.

    RESULTS: Move Boxing, Move Gladiator Duel, and Move Kayaking achieved moderate intensity exercise, while Move Tennis only achieved exercise of low intensity based on participants' metabolic equivalent. However, all four exergames achieved at least moderate intensity based on individuals' ratings of perceived exertion (RPE).

    CONCLUSION: The intensity classification while playing Move Boxing, Move Tennis, Move Gladiator Duel, and Move Kayaking, using RPE, reported adequate exercise intensities prescribed by exercise guidelines.

    Matched MeSH terms: Heart Rate
  15. Abdulrahman Al Aizary, Faiz Daud
    Int J Public Health Res, 2016;6(1):700-706.
    MyJurnal
    Introduction Prolonged mechanical ventilation among cardiac surgery patient has been
    found to be correlated with negative clinical outcome and increased
    healthcare resources utilization. Prolonged mechanical ventilation (PMV)
    was defined as the accumulative duration of 24 hours or more of
    postoperative endotracheal intubation starting from transfer of the patient to
    cardiac ICU. This study is aimed to identify the risk factors preoperative,
    intra operative and postoperative for prolonged ventilation among cardiac
    patients in AL-Thawra Modern General Hospital (TMGH).

    Methods Observational study design was conducted during a two-month period (from
    1 August 2014 to 30 September 2014). It was among 70 patients who were
    admitted to cardiac surgery intensive care unit in Al-Thawra Modern General
    Hospital and selected by convenient sampling. The soci-demographic
    characteristic and clinical patient data were collected using short
    questionnaire developed by researcher. All patients had the same anesthetic
    and postoperative management. Statistical analysis was performed with SPSS
    version 20 and using bivariate analysis and multivariate logistic regression.
    The p-value of < 0.05 was found to be statistically significant.

    Results Incidence of prolonged mechanical ventilator post cardiac surgery was 37.1%
    (26/70) through bivariate analysis, multivariate logistic regression. Low
    Ejection fraction of Left Ventricle was inversely related to mechanical
    ventilation time (AOR= 0.872) with 95% confidence interval [0.790 - 0.963],
    hemodynamic instability were associated with prolonged mechanical
    ventilation time (AOR=16.35) with 95% confidence interval [2.558 -
    104.556].

    Conclusion Low ejection fraction of Left Ventricle and Hemodynamic Instability post
    operation were identified risk factors for prolonged mechanical ventilation
    post cardiac surgery.
    Matched MeSH terms: Heart Ventricles
  16. Chee KH, Choo GH, Jamaluddin ANB, Mahendran K, Greenlaw N, Chandran A
    Med J Malaysia, 2017 10;72(5):282-285.
    PMID: 29197883 MyJurnal
    INTRODUCTION: The on-going, international, prospective, observational, longitudinal CLARIFY registry is investigating the demographics, clinical profiles, management and outcomes of patients with stable coronary artery disease (CAD). This paper assesses baseline characteristics, treatment, and clinical outcomes at two years' follow-up of Malaysian/Bruneian patients compared with the overall registry population.

    METHOD: Between November 2009 and July 2010, outpatients from 45 countries who met the criteria for stable CAD were recruited into the registry. Baseline characteristics were documented at enrolment, and patients were reassessed during their annual visits over a five-year follow-up period. Key outcomes measured were sudden death and cardiovascular (CV) death, non-CV death and CV morbidity.

    RESULTS: At baseline, 33,283 patients were available for analysis within the registry; 380 and 27 were Malaysians and Bruneians, respectively. The mean ages of Malaysian/Bruneian patients and the rest of the world (RoW) were 57.83 ±9.98 years and 64.23 ± 10.46 years, respectively (p<0.001). The median body mass index values were 26.6 (24.4-29.6) kg/m2 and 27.3 (24.8-30.3) kg/m2, respectively (p=0.014). Malaysian/Bruneian patients had lower rates of myocardial infarction (54.55% versus 59.76%, p=0.033) and higher rates of diabetes (43.24% versus 28.99%, p<0.001) and dyslipidaemia (90.42% versus 74.66%, p<0.001) compared with the RoW. Measured clinical outcomes in Malaysian and Bruneian patients at 2-years follow-up were low and generally comparable to the RoW.

    CONCLUSION: Malaysian/Bruneian patients with stable CAD tend to be younger with poorer diabetic control compared with the RoW. However, they had similar outcomes as the main registry following two years of treatment.

    Matched MeSH terms: Heart Rate
  17. Malik AA, Williams CA, Bond B, Weston KL, Barker AR
    Eur J Sport Sci, 2017 Nov;17(10):1335-1342.
    PMID: 28859545 DOI: 10.1080/17461391.2017.1364300
    This study aimed to examine adolescents' acute cardiorespiratory and perceptual responses during high-intensity interval exercise (HIIE) and enjoyment responses following HIIE and work-matched continuous moderate intensity exercise (CMIE). Fifty-four 12- to 15-year olds (27 boys) completed 8 × 1-min cycling at 90% peak power with 75-s recovery (HIIE) and at 90% of the gas exchange threshold (CMIE). Absolute oxygen uptake ([Formula: see text]), percentage of maximal [Formula: see text] (%[Formula: see text]), heart rate (HR), percentage of maximal HR (%HRmax) and ratings of perceived exertion (RPE) were collected during HIIE. Enjoyment was measured using the physical activity enjoyment scale (PACES) following HIIE and CMIE. Boys elicited higher absolute [Formula: see text] during HIIE work (p  1.22) and recovery (p  0.51) intervals but lower %[Formula: see text] during HIIE recovery intervals compared to girls (p  0.67). No sex differences in HR and %HRmaxwere evident during HIIE and 48 participants attained ≥90% HRmax. Boys produced higher RPE at intervals 6 (p = .004, ES = 1.00) and 8 (p = .003, ES = 1.00) during HIIE. PACES was higher after HIIE compared with CMIE (p = .003, ES = 0.58). Items from PACES "I got something out of it", "It's very exciting" and "It gives me a strong feeling of success" were higher after HIIE (all p  0.32). The items "I feel bored" and "It's not at all interesting" were higher after CMIE (all p  0.46). HIIE elicits a maximal cardiorespiratory response in most adolescents. Greater enjoyment after HIIE was due to elevated feelings of reward, excitement and success and may serve as a strategy to promote health in youth.
    Matched MeSH terms: Heart Rate
  18. Chadda KR, Ahmad S, Valli H, den Uijl I, Al-Hadithi AB, Salvage SC, et al.
    Sci Rep, 2017 09 11;7(1):11070.
    PMID: 28894151 DOI: 10.1038/s41598-017-11210-3
    Long QT Syndrome 3 (LQTS3) arises from gain-of-function Nav1.5 mutations, prolonging action potential repolarisation and electrocardiographic (ECG) QT interval, associated with increased age-dependent risk for major arrhythmic events, and paradoxical responses to β-adrenergic agents. We investigated for independent and interacting effects of age and Scn5a+/ΔKPQ genotype in anaesthetised mice modelling LQTS3 on ECG phenotypes before and following β-agonist challenge, and upon fibrotic change. Prolonged ventricular recovery was independently associated with Scn5a+/ΔKPQ and age. Ventricular activation was prolonged in old Scn5a+/ΔKPQ mice (p = 0.03). We associated Scn5a+/ΔKPQ with increased atrial and ventricular fibrosis (both: p 
    Matched MeSH terms: Heart Function Tests
  19. Mirza FT, Jenkins S, Justine M, Cecins N, Hill K
    Respirology, 2018 Jul;23(7):674-680.
    PMID: 29446206 DOI: 10.1111/resp.13262
    BACKGROUND AND OBJECTIVE: There is increased use of the 2-min walk test (2MWT) to assess functional exercise capacity. However, the distance achieved during this test may be difficult to interpret in the absence of reference values from a local population. Regression equations to estimate the 2-min walk distance (2MWD) only exist for American and Brazilian populations. The objective of this study was to develop regression equations to estimate the 2MWD in Malaysian adults who were free from major health problems.
    METHODS: Eighty-seven adults (43 males; mean ± SD age: 57.1 ± 9.6 years) performed two 2MWT using a standardized protocol. Heart rate (HR) was recorded every 30 s during the test. Stepwise multiple regression analysis was performed using age, gender, height, weight and change in HR (ΔHR) as independent variables, and better of the two 2MWD as the dependent variable. A second regression equation, without ΔHR, was planned if ΔHR was retained as one of the predictors of the 2MWD in the first equation.
    RESULTS: The better of the two 2MWD was 200 ± 34 m. Males walked 33 ± 6 m further than females (P < 0.001). The two regression equations were 196 - 1.1 × age, years + 1.0 × ΔHR, bpm + 31.2 × gender (R2 = 0.73) and 279 - 1.7 × age, years + 35.9 × gender (R2 = 0.47) with females = 0 and males = 1.
    CONCLUSION: The equations derived in this study may facilitate the interpretation of the 2MWD in clinical populations in Malaysia, as well as in countries with similar cultural backgrounds to Malaysia.
    Study site: volunteers from four villages in the Batu sub-district, Gombak, Malaysia
    Matched MeSH terms: Heart Rate
  20. Alaga A, Yew YX, Razul MK
    J R Coll Physicians Edinb, 2017 Dec;47(4):353-355.
    PMID: 29537407 DOI: 10.4997/JRCPE.2017.410
    A 47-year-old female, with multiple comorbidities, presented with a cough of two months, loss of weight and appetite. She was treated for pneumonia. A chest X-ray showed bilateral reticulonodular opacities. She was noted to have a vague central abdominal mass and a systolic murmur over the mitral region. Ultrasonography and computed tomography of the abdomen showed an omental mass and loculated ascites. Oesophagoduedenoscopy showed antral gastritis and during colonoscopy the surgical team was unable to advance the scope beyond 40 cm due to external compression. An echocardiogram showed a right atrial mass and a pericardial effusion over the posterior wall. A possible diagnosis of atrial myxoma was made. Sputum acid-fast bacillus was negative. The patient was treated empirically for disseminated tuberculosis and scheduled for bronchoscopy by the pulmonology team. The patient showed remarkable improvement after day 7 of anti-tuberculosis medication. GeneXpert study came back as positive. CT abdomen and echocardiogram repeated after 2 weeks of treatment showed reduction in the mass.
    Matched MeSH terms: Heart Atria
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links