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Liu Feng F Department of Cardiology, Suzhou Kowloon Hospital, School of Medicine, Shanghai Jiaotong University , Shanghai , - - 2014
We presented a 31-year-old female patient with a history of hypertension and severe pulsing headache for about 3 months. The patient had pulsing headaches over the past 3 months with increased very high blood pressure (BP = 220/130 mmHg), sometimes with blurred vision, nausea and vomiting, with no known pathological ...
Chen Xing X Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, V6T1Z4, - - 2014
This paper reports a sensor-integrated telemetric stent targeted at wireless detection and monitoring of restenosis, a common vascular complication induced by stent implantation. The developed "smart" stent incorporates the design and fabrication approaches that raise the practicality of the device, being tested in an in vivo study that validates its ...
Margiotta Alyssa A University of South Carolina School of Medicine/Greenville, Department of Surgery, Greenville Health System, Greenville, South Carolina, - - 2014
Chronic mesenteric artery ischemia can be difficult to evaluate after stent placement. This case describes the use of a pressure wire to demonstrate the hemodynamic significance of in-stent restenosis. Papaverine was used to vasodilate the mesenteric bed, mimicking the post-prandial state. The study (arteriography with pressure wire) and retreatment (covered ...
Ding Yang Y Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, - - 2014
Vanadium sesquioxide, V2O3, is a prototypical metal-to-insulator system where, in temperature-dependent studies, the transition always coincides with a corundum-to-monoclinic structural transition. As a function of pressure, V2O3 follows the expected behavior of increased metallicity due to a larger bandwidth for pressures up to 12.5 GPa. Surprisingly, for higher pressures when the ...
Protasiewicz Marcin - - 2013
The aim of the study was to assess the significance of renal translesional pressure gradients in predicting improvement in resistant hypertension after stenting for moderate renal artery stenosis (RAS). In 37 patients with RAS and resistant hypertension subjected to renal stenting, translesional pressure gradients both at rest and hyperemic were ...
Weinberg Ido - - 2013
Renal artery stent revascularization is commonly used for renovascular hypertension. Clinical predictors associated with blood pressure (BP) improvement after renal artery stent revascularization are not well understood. Patient-level data from 901 patients in five prospective multicenter Food and Drug Administration-approved investigational device exemption studies of renal artery stent revascularization was ...
Tafti F F - - 2013
An unusual, non-metallic resistivity of the 111 iron-pnictide compound FeCrAs is shown to be relatively unchanged under pressures of up to 17 GPa. Combined with our previous finding that this non-metallic behaviour persists from at least 80 mK to 800 K, this shows that the non-metallic phase is exceptionally robust. Antiferromagnetic order, with ...
Cook Jeffrey R - - 2013
AIMS: Optimizing stent deployment is important for both acute- and long-term outcomes. High-pressure balloon inflation is the standard for coronary stent implantation. However, there is no standardized inflation protocol. We hypothesized that prolonged high-pressure balloon inflation until stabilization of inflation pressure is superior to a rapid inflation/deflation sequence for both ...
Saha Mrinal - - 2013
To determine whether longer periods of stent balloon inflation result in greater minimal luminal diameter (MLD) as measured by quantitative coronary analysis (QCA), and to determine whether measured size correlated with that predicted by pressure-diameter nomograms. Seventy-four stents were implanted in 52 patients. Stent acquisitions at a steady inflation pressure ...
Fröbert Ole - - 2013
BACKGROUND: Percutaneous coronary intervention (PCI) stent inflation pressure correlates to angiographic lumen improvement and stent expansion but the relation to outcome is not clarified. Using comprehensive registry data our aim was to evaluate how stent inflation pressure influences restenosis, stent thrombosis and death following PCI. METHODS: We evaluated all consecutive ...
KÄ…dziela Jacek - - 2013
The aim of our study was to determine a potential relationship between resting translesional pressures ratio (Pd/Pa ratio), renal fractional fl ow reserve (rFFR) and blood pressure response after renal artery stenting. Thirty fi ve hypertensive patients (49% males, mean age 64 years) with at least 60% stenosis in angiography, ...
Muller Olivier - - 2012
BACKGROUND: TO QUANTIFY THE CHANGES IN ARTERIAL DIMENSIONS AFTER THE ACUTE CHANGES IN PRESSURE ASSOCIATED WITH PERCUTANEOUS CORONARY INTERVENTION (PCI).METHODS AND RESULTS: FORTY-EIGHT PATIENTS WITH ONE ANGIOGRAPHICALLY MODERATE-TO-SEVERE STENOSIS WERE INCLUDED IN THE STUDY. THE PRESSURE PROXIMAL AND DISTAL TO THE STENOSIS AND THE ARTERIAL DIAMETER PROXIMAL AND DISTAL TO ...
Li G - - 2012
We report that a series of lanthanide-based bulk metallic glasses show a pressure-induced polyamorphic phase transition observed by in situ angle-dispersive x-ray diffraction under high pressures. The transition started from a low-density state at lower pressures, and went through continuous densification ending with a high-density state at higher pressures. We demonstrate ...
Kot Jacek - - 2012
Clear differences between professional and recreational deep diving are disappearing, at least when taking into account the types of breathing mixtures (oxygen, nitrox, heliox, and trimix) and range of dive parameters (depth and time). Training of recreational deep divers is conducted at depths of 120-150 metres and some divers dive ...
Díaz José F - - 2012
Calcified nondilatable lesions remain a challenge for the interventional cardiologist, and they are becoming more frequent in the catheterization laboratory as the overall complexity of interventions increases. Stent underexpansion is the main risk factor for restenosis and thrombosis, which is the most feared complication for the interventionalist.In this report, we ...
Shi Zumin - - 2011
OBJECTIVE: One large cross-sectional study across four countries suggests that glutamate intake may be inversely associated with blood pressure (BP). The aim of this analysis was to investigate a possible association between monosodium glutamate (MSG) intake and change in blood pressure over 5 years. METHODS: Data from 1227 Chinese men ...
Horita Yuki - - 2011
The restenosis rate of coronary stent has significantly decreased by implantation of the drug-eluting stent (DES). We often experienced the DES implantation for very small target vessels. The minimum size of DES in Japan and USA is 2.5 mm-diameter, but there were no reports of the expandability of DESs for the ...
Poston Lucilla - - 2011
Sub-optimal maternal nutritional status has been implicated in the development of cardiovascular risk in the child. Initially inferred from studies of low birthweight children, investigations in cohorts of women subjected to famine, provide direct evidence for an independent influence of the mother's diet on the cardiovascular health of her child. ...
Montecucco Fabrizio - - 2011
In spite of the huge amount of research recently performed in this area, the pathogenesis of human hypertension remains elusive. Thus, hypertension has to be defined as "essential" for the majority of patients with high blood pressure. Given the lack of animal models useful to investigate essential hypertension, we analyze ...
Wilczynska Agnieszka - - 2010
The disturbance of circadian variability helps predict, among others, the occurrence of cardiovascular diseases. Circadian Hyper Amplitude Tension (CHAT) is a psychosomatic disorder related to an inappropriate lifestyle (including unbalanced diet, stress-inducing environment/development) and genetic factors. Blood pressure and heart rate are phenotypes characterized by rhythmic fluctuations over time under ...
Milan Alberto - - 2011
The aim of this study was to evaluate the association between brachial and central blood pressure (bBP and cBP) levels and aortic root dilatation (ARD) in essential hypertensive patients. A total of 190 untreated and treated essential hypertensive patients (mean age, 55 ± 11 years) were considered for this analysis. ...
Berka-Zougali Baya - - 2010
In the present work, the new extraction process of Détente Instantanée Contrôlée DIC (French, for instant controlled pressure drop) was studied, developed, quantitatively and qualitatively compared to the conventional hydrodistillation method for the extraction of essential oils from Algerian myrtle leaves. DIC was used as a thermomechanical treatment, DIC subjecting ...
Sonmez Alper - - 2010
Both apelin and asymetric dymethyl arginine (ADMA) regulate blood pressures. Low apelin and high ADMA levels have been reported in several cardiometabolic disorders. However, there is no data about ADMA and apelin levels in essential hypertension and any relationship between them. We investigated a group of newly diagnosed and untreated ...
- - 2010
The Food and Drug Administration (FDA), after consultation with the Environmental Protection Agency (EPA), is amending FDA's regulation on the use of ozone-depleting substances (ODSs) in self-pressurized containers to remove the essential-use designations for flunisolide, triamcinolone, metaproterenol, pirbuterol, albuterol and ipratropium in combination, cromolyn, and nedocromil used in oral pressurized ...
Filigheddu Fabiana - - 2010
AIMS: To analyze the association of haplotypes of the adrenergic system with essential hypertension and with the blood pressure response to beta-blockers. MATERIALS & METHODS: In 1112 never-treated essential hypertension patients and 203 normotensive controls, tightly linked SNPs of beta-adrenergic receptors (ADRB1 - Ser49Gly and Arg389Gly; ADRB2 - Cys19Arg, Gly16Arg ...
Consoli Silla M - - 2010
An impaired ability to experience and express emotions, known as alexithymia, has previously been associated with hypertension. Alexithymia and related emotion-processing variables, however, have never been examined as a function of the type of hypertension, essential (EH) or secondary (SH). Our working hypothesis was that if dysregulated emotional processes play ...
Ramasamy Rajesh - - 2010
Neutrophils play a significant role in maintaining the integrity of innate immunity via their potent respiratory burst activity. However, the uncontrolled activation of respiratory burst in neutrophils also attributes to chronic diseases such as primary hypertension and atherosclerosis. In our study, we have investigated the activation of respiratory burst function ...
Bessa Sahar S - - 2009
BACKGROUND: Essential hypertension is a complex, multifactorial, polygenic disease in which the underlying genetic components remain unknown. Glutathione S-transferase (GST) enzyme is involved in detoxification of reactive oxygen species. This study aimed to investigate GSTM1 and GSTT1 gene polymorphisms in Egyptian essential hypertensive patients and their relationship with oxidative stress-related ...
Tjugen Trygve B - - 2009
Although essential hypertension seems to have a strong hereditary component, the triggering mechanism is unclear. It is likely that the central nervous system via autonomic sympathetic overactivation plays a key role in the development of hypertension. High heart rate has proven to be a strong predictor for cardiovascular disease and ...
Jennings J Richard - - 2009
The brain is typically considered a target for late stage hypertensive disease due to the high prevalence of stroke among hypertensive patients. Research is reviewed, however, that suggests that the brain is implicated in the initiation of high blood pressure and is itself altered by early disease processes. A substantial ...
Milan A - - 2009
Arterial hypertension is associated with an increased risk of atrial fibrillation (AF), and leads to a pronounced increase in morbidity and mortality. Left atrial volume (LAV) is an important prognostic marker in the older populations. The aim of our study was to identify the clinical and echocardiographic determinants of LAV ...
Chakraborty Somashree - - 2009
Because kidney tissue damage is associated with both hypertension and impaired nitric oxide (NO) production, we investigated the possibility whether the kidney tissue contains any activator of endothelial NO synthase (eNOS) that could be important in essential hypertension. An activator protein of M(r) 43000 Da for eNOS from the goat ...
YASUOKA, Hirokazu
Logging operations brought a boom in the bushmeat trade and wildlife management projects into the heart of the forest in southeastern Cameroon. Hunting pressure on duikers (Cephalophus spp.) reached an unsustainable level because of the intensified hunting in areas close to roads. Control of the bushmeat trade was then reinforced, ...
Plante Gérard E - - 2008
This review examines 2 potentially important morbid changes that may precede the onset of hypertension-capillary rarefaction (CR) and large artery rigidity (LAR). The mechanisms responsible for CR, currently measured in the skin microcirculation, as well those responsible for LAR, have yet to be fully delineated. Nor has the duration been ...
Penna Guilherme Loures de Araújo - - 2008
To determine if capillary rarefaction persists when hypertension is treated with angiotensin converting enzyme inhibitor, thiazidic diuretic and/or beta-blocker, and to identify which microcirculatory alterations (structural and functional) persist after anti-hypertensive treatment. We evaluated 28 well-controlled essential hypertensive patients and 19 normotensive subjects. Nailfold videocapillaroscopy examination of the fourth finger ...
Paton J F R JF Department of Physiology & Pharmacology, Bristol Heart Institute, School of Medical Sciences, University of Bristol, Bristol BS8 1TD, UK. - - 2009
The fundamental mechanism that underlies essential hypertension is a high total peripheral resistance. We review here possible origins of high total peripheral resistance in physiologically hypertensive giraffes, spontaneously hypertensive rats and humans with essential hypertension. We propose that a common link could be reduced brainstem perfusion, as first suggested by ...
Afsar Baris - - 2009
Renal Doppler ultrasonography (RDU) is a useful method to determine renal resistive index (RRI). The RRI has been used to evaluate target organ damage (TOD) in essential hypertension. Nocturnal non-dipping of blood pressure (BP) in essential hypertension was also associated with TOD. The relationship between increased RRI and non-dipping has ...
Pasini Anna Fratta - - 2008
This study was conducted to evaluate (i) the effect of nebivolol, a selective beta1-adrenergic receptor antagonist, on plasma concentration of asymmetric dimethylarginine (ADMA) and on flow-mediated dilation (FMD) in essential hypertensive patients; (ii) the effect of serum derived from the treated hypertensive patients on ADMA and on dimethylarginine dimethylaminohydrolase 2 ...
Watts Stephanie W - - 2009
Serotonin [5-hydroxytryptamine (5-HT)] is an amine made from the essential amino acid tryptophan. 5-HT serves numerous functions in the body, including mood, satiety, and gastrointestinal function. Less understood is the role 5-HT plays in the cardiovascular system, although 5-HT receptors have been localized to every important cardiovascular organ and 5-HT-induced ...
Losito Attilio - - 2009
BACKGROUND: Although several studies have reported that kidney stone disease and hypertension are associated, the link between the two conditions has not been identified. This study investigated urinary excretion of different solutes, particularly citrate and acids, in kidney stone formers and examined their association with high blood pressure. METHODS: The ...
Mulè G - - 2008
Several studies documented an association between metabolic syndrome (MetS) and left ventricular (LV) hypertrophy. However, only in a few of these studies the impact of MetS on left ventricular mass (LVM) was separately analysed by gender, with conflicting results. The aim of our study was to verify, in a wide ...
Okura Takafumi - - 2008
Increased arterial stiffness and intima media thickness (IMT) in the common carotid artery (CCA) are related to cardiovascular risk in essential hypertension. Angiotensin II plays an important role in structural and functional changes in the vasculature. In this study, we evaluated the long-term effect of the angiotensin II receptor blocker, ...
Giannarelli Chiara - - 2008
The relationship between adrenergic stimuli and NO in modulating tissue-type plasminogen activator (t-PA) release from endothelial cells was investigated in normotensive subjects and essential hypertensive patients. Sympathetic activation, a well-known stimulus for endogenous fibrinolysis, is also involved in the determination of cardiovascular risk in essential hypertension. However, the existence of ...
Ehret Georg B - - 2008
Essential hypertension is a principal cardiovascular risk factor whose origin remains unknown. Classical genetic studies have shown that blood pressure is at least partially heritable, opening a window to understanding the pathophysiology of essential hypertension in the human using modern genetic tools. The Wellcome Trust Case Control Consortium has recently ...
Cheatham Michael L - - 2008
PURPOSE OF REVIEW: Elevated intraabdominal pressure is commonly encountered in the critically ill, has detrimental effects on all organ systems, and is associated with significant morbidity and mortality. Serial intraabdominal pressure measurements are essential to the diagnosis, management, and fluid resuscitation of patients who develop intraabdominal hypertension and/or abdominal compartment ...
Wabel Peter - - 2008
BACKGROUND: Hypertension and fluid overload (FO) are well-recognized problems in the chronic kidney disease (CKD) population. While the prevalence of hypertension is well documented, little is known about the severity of FO in this population. METHODS: A new bioimpedance spectroscopy device (BCM-Body Composition Monitor) was selected that allows quantitative determination ...
Vyssoulis P - - 2008
INTRODUCTION: The myocardial performance index, Tei index, is a relatively new echocardiography indice which is related to parameters which express both the systolic and diastolic myocardial function. The purpose of the present study was to investigate the possible correlation of Tei index to microalbuminuria, which is an indice of kidney ...
Edwards Louisa - - 2008
Hypertension and risk for hypertension have been associated with reduced pain sensitivity. It has been hypothesised that endogenous opioids contribute to this hypertensive hypoalgesia. The nociceptive flexion reflex can be used as a tool to investigate modulation of nociceptive transmission at spinal level. The current study employed a double-blind placebo-controlled ...
Friso Simonetta - - 2008
BACKGROUND: Lower activity of 11 beta-hydroxysteroid dehydrogenase 2 (11beta-HSD2) classically induces hypertension by leading to an altered tetrahydrocortisol- versus tetrahydrocortisone-metabolites (THFs/THE) shuttle. Recent cell culture and animal studies suggest a role for promoter methylation, a major epigenetic feature of DNA, in regulation of HSD11B2 expression. Little is known, however, of ...
Cuspidi Cesare - - 2008
AIM: Available evidence on multiple target organ damage (TOD) in the early phases of essential hypertension is scanty. We examined the prevalence and correlates of multiple TOD in never-treated patients with recently diagnosed hypertension. METHODS: A total of 602 consecutive outpatients with grades 1 and 2 hypertension underwent the following ...
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