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https://www.readbyqxmd.com/read/28078997/lipoprotein-a-and-cardiovascular-risk-the-show-must-go-on
#1
Niki Katsiki, Khalid Al-Rasadi, Dimitri P Mikhailidis
Lipoprotein (a) [Lp(a)] is an independent but moderate, predictor for coronary heart disease (CHD) prevalence and severity. Several established and emerging cardiovascular (CV) risk factors including age, gender, ethnicity, smoking, dyslipidemia, hypertension, obesity, type 2 diabetes mellitus, alcohol consumption, arterial stiffness and hyperuricemia have been linked to Lp(a) metabolism. Apart from CHD, Lp(a) has been also associated with non-cardiac vascular diseases and diseases associated with increased CV risk such as chronic kidney disease, metabolic syndrome, non-alcoholic fatty liver disease, erectile dysfunction, obstructive sleep apnea syndrome, inflammatory bowel diseases and human immunodeficiency virus infection...
January 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28075423/effects-of-device-guided-slow-breathing-training-on-exercise-capacity-cardiac-function-and-respiratory-patterns-during-sleep-in-male-and-female-patients-with-chronic-heart-failure
#2
Kalina Kawecka-Jaszcz, Grzegorz Bilo, Tomasz Drożdż, Dorota Dębicka-Dąbrowska, Grzegorz Kiełbasa, Gabriella Malfatto, Katarzyna Styczkiewicz, Carolina Lombardi, Agnieszka Bednarek, Sabrina Salerno, Danuta Czarnecka, Gianfranco Parati
INTRODUCTION    Slow breathing training (SBT) has been proposed as new non-pharmacological treatment in chronic heart failure (CHF) patients.  OBJECTIVES    The aim of this study was to assess the effects of SBT on exercise capacity, haemodynamic parameters and sleep respiratory patterns in a relatively large sample of CHF patients. PATIENTS ABD METHODS    A cross-over open study was conducted. The patients completed, in random order, 10-12 week periods of SBT with the RESPeRATE device (InterCure Ltd...
January 10, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28068279/identifying-predictors-of-central-sleep-apnea-cheyne-stokes-breathing-in-chronic-heart-failure-a-pathophysiological-approach
#3
Aneliya I Draganova, Kiril V Terziyski, Stefan S Kostianev
Chronic heart failure (CHF) is a major health problem associated with increased mortality, despite modern treatment options. Central sleep apnea (CSA)/Cheyne-Stokes breathing (CSB) is a common and yet largely under-diagnosed co-morbidity, adding significantly to the poor prognosis in CHF because of a number of acute and chronic effects, including intermittent hypoxia, sympathetic overactivation, disturbed sleep architecture and impaired physical tolerance. It is characterized by repetitive periods of crescendo-decrescendo ventilatory pattern, alternating with central apneas and hypopneas...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28065692/respiratory-drive-in-patients-with-chronic-heart-failure-and-central-sleep-apnea-data-from-the-daunia-heart-failure-registry
#4
Michele Correale, Giovanna Elisiana Carpagnano, Natale Daniele Brunetti, Lucia Forte, Ilenia Monaco, Armando Ferraretti, Roberto Sabato, Maria Pia Foschino Barbaro, Matteo Di Biase, Donato Lacedonia
No abstract text is available yet for this article.
December 27, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28065687/restless-legs-syndrome-and-cardiovascular-disease-a-research-roadmap
#5
REVIEW
Daniel J Gottlieb, Virend K Somers, Naresh M Punjabi, John W Winkelman
In this paper, we first critically appraise the epidemiologic literature examining the association of restless legs syndrome (RLS) with cardiovascular disease (CVD) and then consider whether lessons learned from the study of cardiovascular consequences of other sleep disorders might inform a research agenda to examine the potential mechanisms of cardiovascular morbidity of RLS. Cross-sectional and longitudinal studies are both mixed as to whether there is a meaningful association of RLS and CVD. On the other hand, numerous cross-sectional and longitudinal observational studies have shown a strong association of obstructive sleep apnea (OSA) with CVD risk...
October 27, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28063687/the-longitudinal-effects-of-persistent-apnea-on-cerebral-oxygenation-in-infants-born-preterm
#6
Rosemary S C Horne, Annie C H Fung, Scott NcNeil, Karinna L Fyfe, Alexsandria Odoi, Flora Y Wong
OBJECTIVE: To assess the incidence and impact of persistent apnea on heart rate (HR), oxygen saturation (SpO2), and brain tissue oxygenation index (TOI) over the first 6 months after term equivalent age in ex-preterm infants. STUDY DESIGN: Twenty-four preterm infants born between 27 and 36 weeks of gestational age were studied with daytime polysomnography at 2-4 weeks, 2-3 months, and 5-6 months post-term corrected age. Apneas lasting ≥3 seconds were included and maximal percentage changes (nadir) in HR, SpO2, and tissue oxygenation index (TOI, NIRO-200 Hamamatsu) from baseline were analyzed...
January 4, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28057852/endothelin-1-and-et-receptors-impair-left-ventricular-function-by-mediated-coronary-arteries-dysfunction-in-chronic-intermittent-hypoxia-rats
#7
Jin-Wei Wang, Ai-Ying Li, Qiu-Hong Guo, Ya-Jing Guo, James W Weiss, En-Sheng Ji
Obstructive sleep apnea (OSA) results in cardiac dysfunction and vascular endothelium injury. Chronic intermittent hypoxia (CIH), the main characteristic of OSAS, is considered to be mainly responsible for cardiovascular system impairment. This study is aimed to evaluate the role of endothelin-1(ET-1) system in coronary injury and cardiac dysfunction in CIH rats. In our study, Sprague-Dawley rats were exposed to CIH (FiO2 9% for 1.5 min, repeated every 3 min for 8 h/d, 7 days/week for 3 weeks). After 3 weeks, the left ventricular developed pressure (LVDP) and coronary resistance (CR) were measured with the langendorff mode in isolated hearts...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28057850/investigation-of-the-link-between-fluid-shift-and-airway-collapsibility-as-a-mechanism-for-obstructive-sleep-apnea-in-congestive-heart-failure
#8
Tom Carlisle, Neil R Ward, Angela Atalla, Martin R Cowie, Anita K Simonds, Mary J Morrell
The increased prevalence of obstructive sleep apnea (OSA) in congestive heart failure (CHF) may be associated with rostral fluid shift. We investigated the effect of overnight rostral fluid shift on pharyngeal collapsibility (Pcrit), pharyngeal caliber (APmean), and apnea-hypopnea index (AHI) in CHF patients. Twenty-three optimally treated systolic CHF patients were studied. Neck circumference was measured immediately prior to sleep in the evening and immediately after waking in the morning as a marker of rostral fluid shift...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28055233/assessment-of-patients-medical-fitness-to-drive-by-primary-care-physicians-a-cross-sectional-study
#9
Ghassan A Alkharboush, Faisal A Al Rashed, Ahmed H Saleem, Ibrahim S Alnajashi, Aljohara S Almeneessier, Awad H Olaish, Junaid A Bhatti, Ahmed S BaHammam
OBJECTIVES: Motor vehicle collisions (MVCs) are a significant health burden in Saudi Arabia. The literature has consistently indicated that chronic medical conditions, such as diabetes, heart disease, stroke, obstructive sleep apnea, and neurodevelopmental disorders, increase the risk of MVCs. Therefore, assessment of driver fitness by primary care physicians (PCPs) remains a major health intervention that might reduce MVCs. We studied the practices of PCPs in assessing medical fitness-to-drive in at-risk patients...
January 5, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28054365/mapping-for-acute-transvenous-phrenic-nerve-stimulation-study-maps-study
#10
Lukas R C Dekker, Bart Gerritse, Avram Scheiner, Lilian Kornet
AIMS: Central Sleep Apnea Syndrome, correlated with the occurrence of heart failure, is characterized by periods of insufficient ventilation during sleep. This acute study in 15 patients aims to map the venous system and determine, if diaphragmatic movement can be achieved by phrenic nerve stimulation at various locations within the venous system. METHODS: Subjects underwent a scheduled catheter ablation procedure. During the procedural waiting time, one multi-electrode EP catheter was subsequently placed at the the superior and inferior vena cava and the junctions of the left jugular and left brachiocephalic vein and right jugular and right brachiocephalic vein, for phrenic nerve stimulation (1-2 seconds ON / 2-3 seconds OFF, 40 Hz, pulse width 210 μs)...
January 5, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28044184/-outcome-predictors-for-copd-patients-hospitalized-for-acute-exacerbation
#11
M Spielmanns, F Axer, C Nell, A R Koczulla, T Boeselt, F Magnet, J H Storre, W Windisch
BACKGROUND: Prognostic factors for clinical failure of acute exacerbation in patients with COPD (AECOPD) are of special importance in order to choose an adequate therapy and resources during inpatient treatment. Our database was analyzed to identify predictors for a negative outcome. MATERIALS AND METHODS: In a retrospective analysis medical records of 616 patients (299 women; 317 men) hospitalized for AECOPD between January 2011 and January 2016 were analyzed in order to evaluate demographic and clinical parameters leading to adverse events...
January 2, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28041720/atrial-fibrillation-is-a-major-cause-of-stroke-in-apneic-patients-a-prospective-study
#12
M Poli, P Philip, J Taillard, S Debruxelles, P Renou, J M Orgogozo, F Rouanet, I Sibon
OBJECTIVES: Large prospective studies have established that sleep-disordered breathing (SDB) is associated with an increased incidence of cardiovascular and cerebrovascular diseases. Heterogeneous results have been published about SDB and ischaemic stroke mechanism. The aim of this study was to evaluate the relationship between poststroke apneic syndrome and stroke aetiologies according to the ASCO classification. METHODS: A total of 134 patients with acute ischaemic cerebrovascular events were prospectively included...
March 4, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28039190/endurance-training-attenuates-the-increase-in-peripheral-chemoreflex-sensitivity-with-intermittent-hypoxia
#13
Amanda J Miller, Charity L Sauder, Aimee E Cauffman, Cheryl A Blaha, Urs A Leuenberger
Patients with heart failure and sleep apnea have greater chemoreflex sensitivity, presumably due to intermittent hypoxia (IH), and this is predictive of mortality. We hypothesized that endurance training would attenuate the effect of IH on peripheral chemoreflex sensitivity in healthy humans. Fifteen young healthy subjects (9 female, 26 ± 1 years) participated. Between visits, 11 subjects underwent eight weeks of endurance training that included running four times/week at 80% predicted max heart rate and interval training, and 4 control subjects did not change activity...
December 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28029639/sleep-disordered-breathing-exacerbates-muscle-vasoconstriction-and-sympathetic-neural-activation-in-patients-with-systolic-heart-failure
#14
Denise M L Lobo, Patricia F Trevizan, Edgar Toschi-Dias, Patricia A Oliveira, Rafael B Piveta, Dirceu R Almeida, Charles Mady, Edimar A Bocchi, Geraldo Lorenzi-Filho, Holly R Middlekauff, Carlos E Negrão
BACKGROUND: Sleep-disordered breathing (SDB) is common in patients with heart failure (HF), and hypoxia and hypercapnia episodes activate chemoreceptors stimulating autonomic reflex responses. We tested the hypothesis that muscle vasoconstriction and muscle sympathetic nerve activity (MSNA) in response to hypoxia and hypercapnia would be more pronounced in patients with HF and SDB than in patients with HF without SDB (NoSBD). METHODS AND RESULTS: Ninety consecutive patients with HF, New York Heart Association functional class II-III, and left ventricular ejection fraction ≤40% were screened for the study...
November 2016: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28017934/association-between-sleep-disordered-breathing-and-electrocardiographic-markers-of-atrial-abnormalities-the-mesa-study
#15
Younghoon Kwon, Jeffrey R Misialek, Daniel Duprez, Alvaro Alonso, David R Jacobs, Susan R Heckbert, Susan Redline, Elsayed Z Soliman
AIMS: Electrocardiographic (ECG) markers of left atrial (LA) abnormalities have been linked to increased risk of atrial fibrillation (AF). Sleep disordered breathing (SDB) has been associated with increased risk of AF. We aimed to examine the association of ECG markers of LA abnormalities with SDB. METHODS AND RESULTS: 1546 participants (mean age 67.2 years, 53.4% women, and 63.3% non-whites) from the Multi-Ethnic Study of Atherosclerosis Exam 5 Sleep ancillary study were included in this analysis...
December 25, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27998381/who-needs-oxygen-with-positive-airway-pressure-therapy
#16
Susmita Chowdhuri, Abdulghani Sankari, James A Rowley
The diagnosis and management of obstructive sleep apnea (OSA) are increasingly being performed in the home. In the home management pathway, patients with high pretest probability for OSA are first tested using home sleep apnea testing and if positive for OSA, are treated with automatic positive airway pressure (APAP). The home management pathway has been validated by multiple investigators1-3 and is considered an alternative pathway in guidelines for the evaluation and management of OSA.4 However, there are limitations to the routine use of this pathway...
December 16, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27987225/arrhythmias-in-adults-with-congenital-heart-disease-what-are-risk-factors-for-specific-arrhythmias
#17
Rohit S Loomba, Matthew W Buelow, Saurabh Aggarwal, Rohit R Arora, Joshua Kovach, Salil Ginde
INTRODUCTION: An increasing number of patients with congenital heart disease are now surviving into adulthood. This has also led to the emergence of complications from the underlying congenital heart disease, related surgical interventions, and associated combordities. While the prevalence of particular arrhythmias with specific congenital heart disease has been previously described, a detailed analysis of all lesions and a large number of comorbidities has not been previously published...
December 16, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27973930/comorbidities-and-subgroups-of-patients-surviving-severe-acute-hypercapnic-respiratory-failure-in-the-icu
#18
Dan Adler, Jean-Louis Pépin, Elise Dupuis-Lozeron, Katerina Espa-Cervena, Roselyne Merlet-Violet, Hajo Muller, Jean-Paul Janssens, Laurent Brochard
RATIONALE: No methodical assessment of the lung, cardiac and sleep function of patients surviving an acute hypercapnic respiratory failure episode requiring admission to the intensive care unit (ICU) has been reported in the literature. OBJECTIVES: To prospectively investigate the prevalence and impact of comorbidities in patients treated by mechanical ventilator support (invasive or non-invasive) for acute hypercapnic respiratory failure in the ICU. METHODS: Seventy-eight consecutive patients admitted for an episode of acute hypercapnic respiratory failure underwent an assessment of lung, cardiac and sleep function by pulmonary function tests, transthoracic echocardiography and polysomnography 3 months after ICU discharge...
December 14, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27966055/severity-of-individual-obstruction-events-is-gender-dependent-in-sleep-apnea
#19
Timo Leppänen, Antti Kulkas, Brett Duce, Esa Mervaala, Juha Töyräs
PURPOSE: In obstructive sleep apnea (OSA), severity of individual obstruction events is connected to increased mortality rate and it can be significantly different in patients with similar apnea-hypopnea index (AHI). However, possible gender-dependent variation in severity of obstruction events in different OSA categories is unknown. We investigated whether the severity of obstruction events differs between genders with similar AHI and if this difference varies between OSA categories...
December 13, 2016: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/27956942/obesity-and-hypertensive-heart-disease-focus-on-body-composition-and-sex-differences
#20
REVIEW
Giovanni de Simone, Costantino Mancusi, Raffaele Izzo, Maria Angela Losi, L Aldo Ferrara
There is evidence that hypertension is frequently associated with overweight/obesity even in kids and adolescents. Either conditions influence development of left ventricular (LV) hypertrophy (LVH), through different biological and hemodynamic mechanisms: obesity is conventionally thought to elicit a coherent growth of LV chamber dimensions and myocardial wall thickness (eccentric LV geometry), whereas a more accentuated increase in wall-thickness (concentric LV geometry) is attributed to hypertension. While during youth these differences are visible, proportion of LV concentric geometry, the most harmful LV geometric pattern, sharply raises in obese individuals during middle age, and becomes the most frequent geometric patterns among obese-hypertensive individuals...
2016: Diabetology & Metabolic Syndrome
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