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reduced heart rate variability and mortality

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https://www.readbyqxmd.com/read/28208852/alteration-of-heart-rate-variability-in-patients-of-depression
#1
Deepti Jangpangi, Sunita Mondal, Rajiv Bandhu, Dinesh Kataria, Asha Gandhi
INTRODUCTION: Altered cardiac autonomic functions in form of reduced Heart Rate Variability (HRV) have been found to be associated with increased cardiovascular morbidity and mortality in depressive patients. AIM: To investigate the relationship between HRV measures, which is a non-invasive marker of autonomic nervous system and depression. MATERIALS AND METHODS: The study included a convenient sample size of drug naive depressive patients (n=30) diagnosed on basis of ICD-10 and compared with age and gender matched healthy volunteers (n=30)...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28159825/serum-chloride-and-sodium-interplay-in-patients-with-acute-myocardial-infarction-and-heart-failure-with-reduced-ejection-fraction-an-analysis-from-the-high-risk-myocardial-infarction-database-initiative
#2
João Pedro Ferreira, Nicolas Girerd, Kevin Duarte, Stefano Coiro, John J V McMurray, Henry J Dargie, Bertram Pitt, Kenneth Dickstein, Jeffrey M Testani, Faiez Zannad, Patrick Rossignol
BACKGROUND: Serum chloride levels were recently found to be independently associated with mortality in heart failure (HF). METHODS AND RESULTS: We investigated the relationship between serum chloride and clinical outcomes in 7195 subjects with acute myocardial infarction complicated by reduced left ventricular function and HF. The studied outcomes were all-cause mortality, cardiovascular mortality, and hospitalization for HF. Both chloride and sodium had a nonlinear association with the studied outcomes (P<0...
February 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28152451/can-natural-ways-to-stimulate-the-vagus-nerve-improve-seizure-control
#3
REVIEW
Alan W C Yuen, Josemir W Sander
The vagus nerve (VN) is the longest cranial nerve, innervating the neck, thorax and abdomen, with afferent fibers transmitting a range of interoceptive stimuli and efferent fibres to somatic structures and autonomic preganglions. Over the last few decades, electrical stimulation of the VN using implanted devices (VNS) has been developed leading to its approval for the treatment of epilepsy and depression. More recently, non-invasive devices to stimulation the VN have been developed. The VN has many functions and the activity that is most amenable to assessment is its effect in controlling the cardiac rhythm...
January 30, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28131566/functional-outcome-in-chronic-heart-failure-after-exercise-training-possible-predictive-value-of-heart-rate-variability
#4
Roberto Ricca-Mallada, Edurado R Migliaro, Gabriela Silvera, Lilian Chiappella, Rossana Frattini, Federico Ferrando-Castagnetto
BACKGROUND: Controlled exercise training (ET) is a valuable therapeutic addition to pharmacological treatment in most patients with chronic heart failure (CHF), reducing long-term mortality, preventing cardiac remodelling and improving functional capacity. Despite the fact that the mechanism underlying its benefits might be multifactorial, a sustained improvement in autonomic balance is usually attributed as a major effect. Nevertheless, not all eligible subjects show the same response to ET, probably due to several differences in the subpopulations enrolled...
January 25, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28129768/exposure-to-air-pollution-near-a-steel-plant-is-associated-with-reduced-heart-rate-variability-a-randomised-crossover-study
#5
Robin H Shutt, Lisa Marie Kauri, Scott Weichenthal, Premkumari Kumarathasan, Renaud Vincent, Errol M Thomson, Ling Liu, Mamun Mahmud, Sabit Cakmak, Robert Dales
BACKGROUND: Epidemiological studies have shown that as ambient air pollution (AP) increases the risk of cardiovascular mortality also increases. The mechanisms of this effect may be linked to alterations in autonomic nervous system function. We wished to examine the effects of industrial AP on heart rate variability (HRV), a measure of subtle changes in heart rate and rhythm representing autonomic input to the heart. METHODS: Sixty healthy adults were randomized to spend five consecutive 8-h days outdoors in one of two locations: (1) adjacent to a steel plant in the Bayview neighbourhood in Sault Ste Marie Ontario or (2) at a College campus, several kilometers from the plant...
January 28, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28126381/the-effect-of-a-short-stay-unit-on-hospital-admission-and-length-of-stay-in-acute-heart-failure-reduce-ahf-study
#6
Òscar Miró, Virginia Carbajosa, W Frank Peacock, Pere Llorens, Pablo Herrero, Javier Jacob, Sean P Collins, Cristina Fernández, Antoni Juan Pastor, Francisco Javier Martín-Sánchez
OBJECTIVE: To determine whether the presence of a short-stay unit(SSU) in a hospital influences the percentage of admissions, length of hospital stay(LOS) and outcomes in emergency department(ED) patients with acute heart failure(AHF). METHOD: Retrospective analysis of AHF patients presenting to one of 34 Spanish ED included in EAHFE registry. Baseline and ED data of patients were collected. Patients were classified into two groups in function of being attended at hospitals with or without a SSU...
January 23, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28110612/efficacy-of-high-flow-nasal-cannula-therapy-in-intensive-care-units
#7
Timothy N Liesching, Yuxiu Lei
PURPOSE: We conducted a meta-analysis to compare the physiological and clinical outcomes of high-flow nasal cannula (HFNC) with standard oxygen (O2) or conventional noninvasive ventilation (NIV) in intensive care units (ICUs). PROCEDURES: We selected the full-text prospective studies comparing HFNC with standard O2 or NIV in ICU. The continuous variables were analyzed with sample size-adjusted pooled t test. The categorical variables were extracted and combined for recalculating odds ratio...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28102874/cardiorespiratory-hospitalisation-and-mortality-reductions-after-smoking-bans-in-switzerland
#8
Ana M Vicedo-Cabrera, Martin Röösli, Dragana Radovanovic, Leticia Grize, Fabienne Witassek, Christian Schindler, Laura Perez
INTRODUCTION: Smoking bans are considered one of the most effective policies to reduce population exposure to tobacco smoke and prevent adverse health outcomes. However, evidence on the effect of contextual variables on the effectiveness of smoking bans is still lacking. AIMS: The patchwork of cantonal smoke-free laws in Switzerland was used as a quasi-experimental setting to assess changes after their introduction in: hospitalisations and mortality due to cardiorespiratory diseases in adults; total hospitalisations and hospitalisations due to respiratory disorders in children; and the modifying effects of contextual factors and the effectiveness of the laws...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28038819/patterns-of-inpatient-care-for-acute-myocardial-infarction-and-30-day-3-month-and-1-year-cardiac-diseases-readmission-rates-in-spain
#9
Luis Rodriguez-Padial, Francisco J Elola, Cristina Fernández-Pérez, José L Bernal, Andrés Iñiguez, José V Segura, Vicente Bertomeu
BACKGROUND: Acute myocardial infarction (AMI) is a common cause of hospital discharges and readmissions. Readmissions may indicate poor patient care and avoidable health expenditure, being key in quality improvement strategies. Our aim was to analyse cardiac diseases (CDs) readmissions in patients with AMI in Spain. METHODS: A retrospective analysis of 33,538 hospital discharges with AMI being the "principal diagnosis" at hospitals of the Spanish National Health System in 2012 was performed using administrative data...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28030747/factors-associated-with-and-prognostic-implications-of-cardiac-troponin-elevation-in-decompensated-heart-failure-with-preserved-ejection-fraction-findings-from-the-american-heart-association-get-with-the-guidelines-heart-failure-program
#10
Ambarish Pandey, Harsh Golwala, Shubin Sheng, Adam D DeVore, Adrian F Hernandez, Deepak L Bhatt, Paul A Heidenreich, Clyde W Yancy, James A de Lemos, Gregg C Fonarow
Importance: Elevated levels of cardiac troponins are associated with adverse clinical outcomes among patients with heart failure (HF) and reduced ejection fraction. However, the clinical significance of troponin elevation in the setting of decompensated HF with preserved ejection fraction (HFpEF) is not well established. Objective: To determine the clinical predictors of troponin elevation and its association with in-hospital and long-term outcomes among patients with decompensated HFpEF...
February 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/27914806/interprovincial-differences-in-canadian-coronary-care-unit-resource-use-and-outcomes
#11
Sean van Diepen, Meng Lin, Justin A Ezekowitz, Finlay A McAlister, Douglas S Lee, Shaun G Goodman, Paul W Armstrong, Padma Kaul
International registries have reported a wide variation in coronary care unit (CCU) admission rates for patients hospitalized with acute coronary syndrome (ACS) or heart failure (HF). Little is known about variation in Canadian interprovincial use and outcomes. Canadian Institute of Health Information data were used to identify hospitalized patients admitted to a CCU with a primary diagnosis of ACS or HF between April 1, 2007 and March 31, 2013. We examined interprovincial differences in CCU admission rates, use of CCU restricted therapies in the first 2 days of admission, and the association between CCU admission rate and risk-adjusted in-hospital mortality at the provincial level...
January 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27899499/differential-patterns-of-impaired-cardiorespiratory-fitness-and-cardiac-autonomic-dysfunction-in-recently-diagnosed-type-1-and-type-2-diabetes
#12
Martin Röhling, Alexander Strom, Gidon Bönhof, Sonja Püttgen, Kálmán Bódis, Karsten Müssig, Julia Szendrödi, Daniel Markgraf, Stefan Lehr, Michael Roden, Dan Ziegler
OBJECTIVE: Both impaired cardiorespiratory fitness (CRF) and heart rate variability (HRV) are predictors of mortality, but their relative roles in recent-onset diabetes are unknown. We determined to which extent CRF and HRV are reduced and interrelated in recent-onset diabetes. RESEARCH DESIGN AND METHODS: Participants from the German Diabetes Study with type 1 (n = 163) or type 2 (n = 188) diabetes with known diabetes duration <1 year and two age-matched glucose-tolerant control groups (n = 40 each) underwent spiroergometry and HRV assessment during a hyperinsulinemic-euglycemic clamp...
November 29, 2016: Diabetes Care
https://www.readbyqxmd.com/read/27884420/referral-for-specialist-follow-up-and-its-association-with-post-discharge-mortality-among-patients-with-systolic-heart-failure-from-the-national-heart-failure-audit-for-england-and-wales
#13
Connor A Emdin, Allan J Hsiao, Amit Kiran, Nathalie Conrad, Gholamreza Salimi-Khorshidi, Mark Woodward, Simon G Anderson, Hamid Mohseni, John J V McMurray, John G F Cleland, Henry Dargie, Suzanna Hardman, Theresa McDonagh, Kazem Rahimi
For patients admitted with worsening heart failure (HF), early follow-up after discharge is recommended. Whether outcomes can be improved when follow-up is done by cardiologists is uncertain. We aimed to determine the association between cardiology follow-up and risk of death for patients with HF discharged from hospital. Using data from the National Heart Failure Audit (England and Wales), we investigated the effect of referral to cardiology follow-up on 30-day and 1-year mortality in 68,772 patients with HF and a reduced left ventricular ejection fraction discharged from 185 hospitals from 2007 to 2013...
February 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/27873227/the-relationship-between-aortic-root-size-and-hypertension-an-unsolved-conundrum
#14
Giuseppe Mulè, Emilio Nardi, Massimiliano Morreale, Antonella Castiglia, Giulio Geraci, Dario Altieri, Valentina Cacciatore, Margherita Schillaci, Francesco Vaccaro, Santina Cottone
Thoracic aortic aneurysms rupture and dissection are among the most devastating vascular diseases, being characterized by elevated mortality, despite improvements in diagnostic imaging and surgical techniques.An increased aortic root diameter (ARD) represents the main risk factor for thoracic aortic dissection and rupture and for aortic valve regurgitation.Even though arterial hypertension is commonly regarded as a predisposing condition for the development of thoracic aorta aneurysms, the role of blood pressure (BP) as determinant of aortic root enlargement is still controversial...
November 22, 2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27836300/methods-of-assessment-of-the-post-exercise-cardiac-autonomic-recovery-a-methodological-review
#15
REVIEW
Tiago Peçanha, Rhenan Bartels, Leandro C Brito, Marcelle Paula-Ribeiro, Ricardo S Oliveira, Jeffrey J Goldberger
The analysis of post-exercise cardiac autonomic recovery is a practical clinical tool for the assessment of cardiovascular health. A reduced heart rate recovery - an indicator of autonomic dysfunction - has been found in a broad range of cardiovascular diseases and has been associated with increased risks of both cardiac and all-cause mortality. For this reason, over the last several years, non-invasive methods for the assessment of cardiac autonomic recovery after exercise - either based on heart rate recovery or heart rate variability indices - have been proposed...
January 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27812731/assessment-of-heart-rate-acidosis-consciousness-oxygenation-and-respiratory-rate-to-predict-noninvasive-ventilation-failure-in-hypoxemic-patients
#16
Jun Duan, Xiaoli Han, Linfu Bai, Lintong Zhou, Shicong Huang
PURPOSE: To develop and validate a scale using variables easily obtained at the bedside for prediction of failure of noninvasive ventilation (NIV) in hypoxemic patients. METHODS: The test cohort comprised 449 patients with hypoxemia who were receiving NIV. This cohort was used to develop a scale that considers heart rate, acidosis, consciousness, oxygenation, and respiratory rate (referred to as the HACOR scale) to predict NIV failure, defined as need for intubation after NIV intervention...
February 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/27797930/effects-of-liraglutide-on-heart-rate-and-heart-rate-variability-a-randomized-double-blind-placebo-controlled-crossover-study
#17
Preman Kumarathurai, Christian Anholm, Bjørn S Larsen, Rasmus Huan Olsen, Sten Madsbad, Ole Kristiansen, Olav W Nielsen, Steen B Haugaard, Ahmad Sajadieh
OBJECTIVE: Reduced heart rate variability (HRV) and increased heart rate (HR) have been associated with cardiovascular mortality. Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) increase HR, and studies have suggested that they may reduce HRV. We examined the effect of the GLP-1 RA liraglutide on HRV and diurnal variation of HR in overweight patients with newly diagnosed type 2 diabetes (T2D) and stable coronary artery disease (CAD). RESEARCH DESIGN AND METHODS: Liraglutide or placebo was administrated to a backbone therapy of metformin in this double-blind, placebo-controlled 12 + 12-week crossover study...
January 2017: Diabetes Care
https://www.readbyqxmd.com/read/27752355/cardiac-involvement-in-adult-and-juvenile-idiopathic-inflammatory-myopathies
#18
REVIEW
Thomas Schwartz, Louise Pyndt Diederichsen, Ingrid E Lundberg, Ivar Sjaastad, Helga Sanner
Idiopathic inflammatory myopathies (IIM) include the main subgroups polymyositis (PM), dermatomyositis (DM), inclusion body myositis (IBM) and juvenile DM (JDM). The mentioned subgroups are characterised by inflammation of skeletal muscles leading to muscle weakness and other organs can also be affected as well. Even though clinically significant heart involvement is uncommon, heart disease is one of the major causes of death in IIM. Recent studies show an increased prevalence of traditional cardiovascular risk factors in JDM and DM/PM, which need attention...
2016: RMD Open
https://www.readbyqxmd.com/read/27751799/performance-of-the-obstetric-early-warning-score-in-critically-ill-patients-for-the-prediction-of-maternal-death
#19
Angel Paternina-Caicedo, Jezid Miranda, Ghada Bourjeily, Andrew Levinson, Carmelo Dueñas, Camilo Bello-Muñoz, José A Rojas-Suarez
BACKGROUND: Every day, about 830 women die worldwide from preventable causes related to pregnancy and childbirth. Obstetric early warning scores have been proposed as a potential tool to reduce maternal morbidity and mortality, based on the identification of predetermined abnormal values in the vital signs or laboratory parameters, to generate a rapid and effective medical response. Several early warning scores have been developed for obstetrical patients, but the majority are the result of a clinical consensus rather than statistical analyses of clinical outcome measures (ie, maternal deaths)...
January 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27688235/location-of-in-hospital-cardiac-arrest-in-the-united-states-variability-in-event-rate-and-outcomes
#20
Sarah M Perman, Emily Stanton, Jasmeet Soar, Robert A Berg, Michael W Donnino, Mark E Mikkelsen, Dana P Edelson, Matthew M Churpek, Lin Yang, Raina M Merchant
BACKGROUND: In-hospital cardiac arrest (IHCA) is a major public health problem with significant mortality. A better understanding of where IHCA occurs in hospitals (intensive care unit [ICU] versus monitored ward [telemetry] versus unmonitored ward) could inform strategies for reducing preventable deaths. METHODS AND RESULTS: This is a retrospective study of adult IHCA events in the Get with the Guidelines-Resuscitation database from January 2003 to September 2010...
September 29, 2016: Journal of the American Heart Association
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