Search Results
Results 451 - 500 of 1545
< 5 6 7 8 9 10 11 12 13 14 15 >
Kim Young Joo - - 2013
This study was conducted to study left ventricular hypertrophy (LVH), diastolic dysfunction, pulse pressure (PP), and plasma endothelin (ET)-1 level in amateur marathon runners with an exaggerated blood pressure response (EBPR) to exercise. The study participants included normotensive marathon runners (NM, n = 15), EBPR marathon runners (EBPR, n = ...
Nakayama Atsuko - - 2013
Although hypertrophic cardiomyopathy (HCM) with an accessory pathway is encountered in clinical practice, there is little evidence of a coherent strategy for ablation of the accessory pathway in patients with HCM. We present the case of a 61-year-old man who had type B Wolff-Parkinson-White (WPW) syndrome with hypertrophic obstructive cardiomyopathy ...
Cavallaro Giacomo - - 2013
Whole-body deep hypothermia (DH) could be a new therapeutic strategy for asphyxiated newborn. This retrospective study describes how DH modified the heart rate and arterial blood pressure if compared to mild hypothermia (MH). Fourteen in DH and 17 in MH were cooled within the first six hours of life and ...
Weerateerangkul Punate - - 2013
Background & objectives: Pre-clinical studies in swine have demonstrated that a supratherapeutic concentration of sildenafil citrate decreased defibrillation efficacy and facilitated cardiac arrhythmia. We therefore, decided to investigate the effects of Kaempferia parviflora (KP) extract on these parameters in the swine heart. The underlying assumption was that in the heart, ...
Davidovic Goran - - 2013
Acute myocardial infarction as a form of coronary heart disease is characterized by permanent damage/loss of anatomical and functional cardiac tissue. Diagnosis of STEMI includes data on anginal pain and persistent ST-segment elavation. According to the numerous epidemiological studies, arterial blood pressure and heart rate are offten increased especially during ...
Zamanian Zahra - - 2013
Background and Objectives. This study aimed to investigate the effect of noise exposure on blood pressure and heart rate of steel industry workers. Materials and Methods. In the present cross-sectional study, 50 workers were selected from a steel company in Fars province, Iran, and exposed to 85, 95, and 105 dB ...
Wang Zhen - - 2013
Although the influence of the Valsalva maneuver on the heart and circulatory system has been investigated, the mechanism of intrathoracic pressure influencing cardiovascular function is unclear. To test our hypothesis that the interaction between the anatomy-determined partially-intrathoracic system and the fully-intrathoracic system might explain those issues and help to disclose ...
Papp Marian E - - 2013
Yoga exercises are known to decrease stress and restore autonomic balance. Yet knowledge about the physiological effects of inversion postures is limited. This study aimed to investigate the effects of inversion postures (head below the heart) on blood pressure (BP) and heart rate variability (HRV). Twelve healthy women and men ...
Cevik Ayhan - - 2013
Objective. The objective of this study was to determine the frequency of pulmonary arterial hypertension (PAH) in congenital heart disease (CHD) with an isolated, large left-to-right shunt and to indicate the factors in the development of PAH. Methods. The pressure measurements in the cardiac chambers and the calculations based on ...
Sato Takahiro - - 2013
This study investigated the major clinical determinants of late gadolinium enhancement (LGE) at ventricular insertion points (VIPs) commonly seen in patients with pulmonary hypertension (PH). Forty-six consecutive PH patients (mean pulmonary artery pressure ≥25 mmHg at rest) and 21 matched controls were examined. Right ventricular (RV) morphology, function and LGE ...
Tanaka Atsushi - - 2013
Myocardial mitochondrial DNA (mtDNA) copy number decreases in heart failure. In post-myocardial infarction mice, increasing mtDNA copy number by overexpressing mitochondrial transcription factor attenuates mtDNA deficiency and ameliorates pathological remodeling thereby markedly improving survival. However, the functional significance of increased mtDNA copy number in hypertensive heart disease remains unknown. We ...
Kim Kyung-Hee - - 2013
Over the last few years, the use of phosphodiesterase type 5 (PDE5) inhibitors has been expanded to management of various cardiovascular disorders beyond pulmonary arterial hypertension. This study is designed to investigate the ability of udenafil, a newly developed long-acting PDE5 inhibitor, to improve functional capacity and hemodynamic status in ...
Neldam Steen - - 2013
Hypertensive patients unable to reach blood pressure (BP) targets with antihypertensive monotherapy may be switched to a combination of two medications with complementary modes of action for improved treatment response. This post hoc analysis pools data from 2812 patients, 1891 of whom were not at goal (diastolic BP [DBP] <90 mm Hg) ...
Kapur Navin K - - 2013
Right ventricular (RV) failure is a major cause of mortality in acute or chronic lung disease and left heart failure. The objective of this study was to demonstrate a percutaneous approach to study biventricular hemodynamics in murine models of primary and secondary RV pressure overload (RVPO) and further explore biventricular ...
Zivkovic Vladimir - - 2013
Despite the widespread clinical use of cyclooxygenase (COX) inhibitors, dilemmas regarding the potential impact of these drugs on the cardiovascular system persist. To estimate the effects of different COX inhibitors (meloxicam, acetylsalicylic acid [ASA] and SC-560) on cardiac function and coronary flow in isolated rat hearts, with special focus on ...
Zhang Xiu - - 2013
The authors previously reported a murine model of left ventricular hypertrophy (LVH) and regression using a suture technique of transverse aortic arch constriction and subsequent removal. A number of issues have limited the widespread adoption of this method. The present study assessed a modification of this model using a titanium ...
Adhana Ritu - - 2013
In 2:1 breathing exhalation is twice of inhalation. The study was performed to study the influence of 2:1 yogic breathing technique on patients of essential hypertension. 30 patients of essential hypertension between ages of 20-50 years were selected. After a rest of 15-20 minutes in a comfortable sitting posture their ...
De Jong Anne Margreet - - 2013
Atrial fibrillation (AF) is often preceded by underlying cardiac diseases causing ventricular pressure overload. It was our aim to investigate the progression of atrial remodeling in a small animal model of ventricular pressure overload and its association with induction of AF. Male mice were subjected to transverse aortic constriction (TAC) ...
Feldstein Carlos A - - 2013
Nocturia is a risk factor for morbidity and mortality but is frequently overlooked and underreported by patients and unrecognized by physicians. Epidemiologic studies reported that nocturnal voiding is associated not only with aging and benign prostatic hyperplasia, but also with many other clinical conditions. The majority of epidemiologic studies reported ...
Franchi Federico - - 2013
Purpose. The effects of mechanical ventilation (MV) on speckle tracking echocardiography- (STE-)derived variables are not elucidated. The aim of the study was to evaluate the effects of positive end-expiratory pressure (PEEP) ventilation on 4-chamber longitudinal strain (LS) analysis by STE. Methods. We studied 20 patients admitted to a mixed intensive ...
Lau Dennis H - - 2013
Recent community-based research has linked aortic stiffness to the development of atrial fibrillation. We posit that aortic stiffness contributes to adverse atrial remodeling leading to the persistence of atrial fibrillation following catheter ablation in lone atrial fibrillation patients, despite the absence of apparent structural heart disease. Here, we aim to ...
Shoucri Rachad M - - 2013
A formula derived by using large elastic deformation for the contraction of the myocardium is used to describe the pressure-volume relation (PVR) in the heart left ventricle, it is also used to calculate a mathematical expression for the non-linear end-systolic pressure-volume relation (ESPVR) in the left ventricle. An important feature ...
Wehrwein Erica A - - 2013
Mean arterial pressure (MAP) is a critical hemodynamic factor. The absence of proper regulation of MAP can have important pathophysiological consequences. Low MAP can cause inadequate blood flow to organs, syncope, and shock. On the other hand, elevated MAP contributes to increased oxygen demand by the heart, ventricular remodeling, vascular ...
Urban Daniel - - 2013
Arterial hypertension is the most prevalent risk factor associated with increased cardiovascular morbidity and mortality. Although pharmacological treatment is generally well tolerated, 5%-20% of patients with hypertension are resistant to medical therapy, which is defined as blood pressure above goal (>140/90 mmHg in general; >130-139/80-85 mmHg in patients with diabetes ...
Radchenko Gd - - 2013
The aim of this study was to compare the antihypertensive efficacy of losartan 100 mg + hydrochlorothiazide (HCTZ) 25 mg versus bisoprolol 10 mg + HCTZ 25 mg and their influence on arterial stiffness and central blood pressure (BP). Of 60 patients with a mean BP of 173.3 ± 1.7/98.4 ...
Sapoznikov Dan - - 2013
Continuous systolic blood pressure (SBP) and interbeat intervals (IBI) recordings reveal sequences of consecutive beats in which SBP and heart rate change in opposite direction, representing negative feedback baroreflex mechanisms, as well as sequences in which SBP and heart rate change in the same direction (non-baroreflex), believed to represent feedforward ...
Grabysa Radosław - - 2013
Background Current guidelines for the management of arterial hypertension (AH) emphasize the importance of diagnosing subclinical organ damage, which determines cardiovascular prognosis. The aim of our study was to evaluate the prevalence of left ventricular hypertrophy (LVH), LV geometry patterns, and LV systolic/diastolic dysfunction among men with uncontrolled AH and ...
Fedchenko Valerii - - 2013
Background Renalase is a recently discovered secretory protein involved in regulation of arterial blood pressure in humans and animals. Results of animal experiments from independent laboratories indicate that administration of human recombinant renalase decreases blood pressure and some genetically predisposed hypertensive rats have lowered renalase levels. Material and Methods The ...
Chen Lan-Yu - - 2013
Aim. Sang-qi Granula (SQ) is a compound prepared from Chinese herbs and is currently used for treatment of hypertension in China. Given its protective effects on cardial function in decreasing blood pressure, we investigated the mechanism of protective effects of SQ on myocardium. Methods. 16 male normal Wistar-Kyoto rats and ...
Havas Magda - - 2013
Abstract Exposure to electrosmog generated by electric, electronic, and wireless technology is accelerating to the point that a portion of the population is experiencing adverse reactions when they are exposed. The symptoms of electrohypersensitivity (EHS), best described as rapid aging syndrome, experienced by adults and children resemble symptoms experienced by ...
Lim Einly - - 2013
A lumped parameter model of the cardiovascular system has been developed and optimized using experimental data obtained from 13 healthy subjects during graded head-up tilt (HUT) from the supine position to [Formula: see text]. The model includes descriptions of the left and right heart, direct ventricular interaction through the septum ...
Bodo Michael - - 2013
Introduction: Two challenges of trauma triage are to identify wounded who are in danger of imminent death and to enable medics to determine if resuscitation is possible when making ?dead or alive? decisions on the battlefield. Hemorrhagic shock is the leading cause of death in combat injuries. The purpose of ...
Agarwal Sunil K - - 2013
Autonomic fluctuations are associated with the initiation and possibly maintenance of atrial fibrillation (AF). However, little is known about the relationship between orthostatic blood pressure change, a common manifestation of autonomic dysfunction, and incident AF. We examined whether supine-to-standing changes in systolic blood pressure (SBP) are associated with incident AF ...
Bobocka K - - 2013
Aim: Left ventricular hypertrophy in chronic haemodialysis patients is multifactorial. Our aim was to evaluate retrospectively the relationship between 24-h blood pressure monitoring and geometry and function of left ventricle (LV). Patients a methods: We examined 50 patients (men/women 33/17) treated by chronic haemodialysis (>3 months) aged 57.5 years (53-63; median, ...
Ding Fengyun F Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, - - 2013
In this study, two hexapeptides of IPPVPP and VPPIPP were innovated by using two commercial antihypertensive peptides IPP and VPP as two domains cis-linked and trans-linked, respectively. The IPPVPP and VPPIPP were chemically synthesized and evaluated for the antihypertensive activity in vitro/vivo. The in vitro ACE-inhibitory study showed that VPPIPP ...
Chateau-Degat Marie-Ludivine ML Hyperbaric Medicine and Gas Pharmacology Research Unit at the research center of the CSSS Alphonse Desjardins/CHAU de Lévis, Lévis, QC, Canada. - - 2013
Carbon monoxide (CO) poisoning can be a life threatening condition. Systemic hyperbaric oxygen (HBO) therapy is used to induce CO detoxification. However, little is known about the hemodynamic response to HBO in severely intoxicated patients. We retrospectively analyzed the medical records of 6 CO-poisoned patients treated with propofol, rocuronium bromide, ...
Robinson Louise E LE Warwick Medical School, University of Warwick, Coventry, - - 2013
To synthesise current evidence for the effects of exenatide and liraglutide on heart rate, blood pressure and body weight. Meta-analysis of available data from randomised controlled trials comparing Glucagon-like peptide-1 (GLP-1) analogues with placebo, active antidiabetic drug therapy or lifestyle intervention. Patients with type 2 diabetes. Weighted mean differences between ...
Kim Seung Ju SJ School of Oriental Medicine & College of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea ; Hanbang Body-Fluid Research Center, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of - - 2013
The seeds of Lepidium apetalum Willdenow (called "Tinglizi" in China and "Jungryukza" in Korea) have been used to discharge phlegm and improve dropsy in Oriental medicine. The present study investigated the effects of ethanol extract of the seeds of Lepidium apetalum (ELA) on atrial dynamics and atrial natriuretic peptide (ANP) ...
Chiasson Ann Marie AM Arizona Center for Integrative Medicine, University of Arizona, Tucson, AZ 85724-5153, - - 2013
This study was performed to investigate the effect of live, spontaneous harp music on individual patients in an intensive care unit (ICU), either pre- or postoperatively. The purpose was to determine whether this intervention would serve as a relaxation or healing modality, as evidenced by the effect on patient's pain, ...
Nwafor Chibuike E CE From Cardiology Division, Department of Medicine, University of Port Harcourt Teaching Hospital Rivers State, Nigeria. - - 2013
Blood pressure variation throughout the day is known to have cardiovascular consequences. Left ventricular (LV) mass is more closely related to 24-hour blood pressure than casual blood pressure. Daytime blood pressure expectedly is higher than that of nighttime under normal circumstances. The effect of 24-hour blood pressure pattern on the ...
Huang Hsin-Wei - - 2013
We report a stability scheme of resistive switching devices based on ZnO films deposited by radio frequency (RF) sputtering process at different oxygen pressure ratios. I-V measurements and statistical results indicate that the operating stability of ZnO resistive random access memory (ReRAM) devices is highly dependent on oxygen conditions. Data ...
Taban Sadeghi Mohammadreza M Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, - - 2013
Introduction: Effects of emotional stimuli on hemodynamics in patients with essential hypertension based on brain/behavioral systems have not been studied broadly. Methods: Eighty five essential hypertensive male patients who had completed Carver-White BIS/BAS scale were enrolled to the study. Later, 25 BIS and 25 BAS patients were selected and their ...
Kass Lindsy S LS School of Life and Medical Science, University of Hertfordshire , Hertfordshire, United - - 2013
The effects of magnesium supplementation on blood pressure (BP) have been studied for over 25 years and results have been inconsistent. Blood pressure reductions in randomized studies have varied from 12 mmHg reductions to no reduction. The objective of this pilot intervention was to investigate the effect of magnesium supplementation ...
Adebayo Rasaaq A RA Department of Medicine, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Osun State, - - 2013
Left ventricular (LV) hypertrophy is an important predictor of morbidity and mortality in hypertensive patients, and its geometric pattern is a useful determinant of severity and prognosis of heart disease. Studies on LV geometric pattern involving large number of Nigerian hypertensive patients are limited. We examined the LV geometric pattern ...
Wang Jie J Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, - - 2013
Hawthorn (Crataegus oxyacantha) is a widely used Chinese herb for treatment of gastrointestinal ailments and heart problems and consumed as food. In North America, the role of treatment for heart problems dates back to 1800. Currently, evidence is accumulating from various in vivo and in vitro studies that hawthorn extracts ...
Neilan Tomas G - - 2013
Sleep apnea (SA) is associated with an increased risk of atrial fibrillation (AF). We sought to determine the effect of SA on cardiac structure in patients with AF, whether therapy for SA was associated with beneficial cardiac structural remodelling, and whether beneficial cardiac structural remodelling translated into a reduced risk ...
Chen Hao H Molecular Cardiovascular Research Program, Department of Physiology, University of Arizona Tucson, AZ, - - 2013
Although familial hypertrophic cardiomyopathy (FHC) is characterized as cardiac disease in the absence of overt stressors, disease penetrance, and pathological progression largely depend on modifying factors. Accordingly, pressure overload by transverse aortic constriction (TAC) was induced in 2-month-old, male mice with and without a FHC (R403Q) mutation in α-myosin heavy ...
Zhabyeyev Pavel - - 2012
AIMS: Development of heart failure is known to be associated with changes in energy substrate metabolism. Information on the changes in energy substrate metabolism that occur in heart failure is limited and results vary depending on the methods employed. Our aim is to characterize the changes in energy substrate metabolism ...
Kim Dae-Hee - - 2012
BACKGROUND: Various left ventricular (LV) vortex parameters obtained during contrast echocardiography (CE) have been recently described. The aim of this study was to investigate their determinants and associations with conventional hemodynamic variables. METHODS: CE was performed and LV pressure was simultaneously measured during pharmacologic inotropic modulation in 8 mongrel dogs. ...
Hayabuchi Yasunobu - - 2012
The current study assessed relationships between the ratio of early diastolic tricuspid inflow to tricuspid lateral annular velocity (tricuspid E/e') and right ventricular (RV) function in children after tetralogy of Fallot (TOF) repair. The RV function of 25 asymptomatic children with surgically repaired TOF (age 3.3 ± 2.0 years) was assessed by echocardiography ...
< 5 6 7 8 9 10 11 12 13 14 15 >