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Results 301 - 350 of 1656
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Shaikh Ayaz Hussain - - 2009
The case of a 65 years old lady, diabetic, hypertensive, reduced functional class with history of episodic dyspnoea lasting for few weeks for the last two years. On presentation she was tachypnoiec with reduced oxygen saturation. Jugular venous distension was present with bibasal crackles. Her ECG was normal. Echocardiogram revealed, ...
Palmer Michael J - - 2009
BACKGROUND: Knowledge of the causative reasons for pulmonary arterial hypertension, a major category of pulmonary hypertension, has expanded dramatically over the past 10 years. This has led to heightened research across a range of potential new mechanistic approaches and resulted in the identification of further treatment options, together with several ...
Faughnan M E - - 2009
Hereditary haemorrhagic telangiectasia (HHT) is a rare autosomal dominant disorder, characterised by the presence of vascular malformations. The pulmonary vascular complications of HHT include pulmonary arteriovenous malformations, pulmonary hypertension associated with high-output heart failure and liver vascular malformations and, finally, pulmonary arterial hypertension secondary to HHT. In the present review, ...
Brun Henrik - - 2009
We examined inflammatory mediators in patients with pulmonary hypertension related to congenital systemic-to-pulmonary shunts and the change in these markers during treatment with bosentan. Inflammatory mechanisms probably play a pathogenic role in idiopathic pulmonary arterial hypertension. Their involvement in pulmonary hypertension related to congenital systemic-to-pulmonary shunts is largely unknown. Plasma ...
- - 2009
(1) In patients with mildly symptomatic pulmonary hypertension (stage III), there is no firm evidence that ambrisentan reduces mortality or slows disease progression. In contrast, ambrisentan has frequent and sometimes serious adverse effects; (2) In patients whose physical activity is markedly restricted by pulmonary hypertension, it is better to continue ...
Kang Beodeul - - 2009
We describe a 54-year-old woman with isolated pulmonary arterial hypertension accompanied by hyperthyroidism due to Graves' disease. Her pulmonary artery hypertension resolved spontaneously after restoration of euthyroidism. This case suggests that hyperthyroidism should be considered a reversible cause of pulmonary arterial hypertension.
Beghetti Maurice - - 2009
In order to provide an overview of current knowledge, the literature was systematically examined for clinical studies, which evaluate the safety and effectiveness of bosentan in pediatric pulmonary arterial hypertension (PAH). 3 databases (MEDLINE, EMBASE and BIOSIS) were searched for the period January 2000 - October 2007 using the key ...
MacLean Margaret R - - 2009
The serotonin hypothesis of pulmonary arterial hypertension (PAH) arose owing to anorexigens, acting as indirect serotinergic agonists, causing PAH. However, it is now thought that serotonin plays an important role in the pathobiology of PAH per se. The rate-limiting enzyme in the synthesis of peripheral serotonin is tryptophan hydroxylase 1 ...
Lapa Monica - - 2009
BACKGROUND: Schistosomiasis is a highly prevalent disease with >200 million infected people. Pulmonary hypertension is one of the pulmonary manifestations in this disease, particularly in its hepatosplenic presentation. The aim of this study was to determine the prevalence of pulmonary hypertension in schistosomiasis patients with the hepatosplenic form of the ...
Triantafyllidi Helen - - 2009
It is known that essential hypertension may be implicated in the development of cognitive impairment that is associated to microvascular disease of the brain. It has been hypothesized that increased arterial stiffness of the large arteries may lead to microvascular changes due to increased pulsatile flow. Our study tests the ...
Lang I M - - 2009
Chronic thromboembolic pulmonary hypertension (CTEPH) is a life-threatening condition in which organised thrombi obstruct the pulmonary vessels, causing increased pulmonary vascular resistance, progressive pulmonary hypertension (PH) and right heart failure. The treatment of choice is pulmonary endarterectomy, which restores pulmonary haemodynamics with acceptable periprocedural mortality rates in the majority of ...
Andrade Magda Rocha - - 2009
PURPOSE: To investigate, through an immunohistochemical method, whether there is deposition of plasma proteins in the wall of lenticulostriate, cortical and leptomeningeal arteries of hypertensive patients, with and without lipohyalinosis. METHOD: Forty patients with essential hypertension were selected at random, 20 with lipohyalinosis in the lenticulostriate arteries (HH group) and ...
Rich J - - 2009
Among the most commonly used therapies to treat pulmonary arterial hypertension (PAH) are the prostanoids. Epoprostenol, a relatively effective therapy for PAH, has its limitations, which are largely attributable to its pharmacokinetic properties and its requirement for intravenous administration. The development of an equally effective oral prostanoid would be an ...
Ghofrani H A - - 2009
The prognosis for patients with pulmonary hypertension remains poor despite recent treatment advances, and there is a need for therapies with new modes of action. Nitric oxide (NO) is an endogenous vasodilator, the levels of which are regulated throughout the lung to ensure preferential perfusion of well-ventilated regions. Drugs that ...
Ferreira R C S - - 2009
Between the April and July of 2007, patients undergoing treatment for schistosomal liver fibrosis, at a university hospital in north-eastern Brazil, were examined by transthoracic Doppler echocardiography (TTE). The main aim was to determine the prevalence of pulmonary hypertension in the patients. The thorax of each patient who had such ...
Madden B P - - 2009
Pulmonary hypertension is defined by a mean pulmonary artery pressure of greater than 25 mmHg at rest or 30 mmHg with exercise. It can occur in association with a variety of medical conditions. The most serious elevation in pulmonary artery pressures are seen in a group of conditions that share ...
Dentali Francesco - - 2009
INTRODUCTION: The true incidence of chronic thromboembolic pulmonary hypertension (CTPH) remains a matter of debate. Symptomatic CTPH is probably more common than previously reported, whereas the occurrence of asymptomatic CTPH has not been defined since very limited evidence on the incidence of asymptomatic CTPH diagnosed with echocardiography Doppler are currently ...
Harch Susan - - 2009
BACKGROUND: Despite the development of targeted therapies for pulmonary arterial hypertension (PAH), some patients fail to respond to medical therapy. There are a number of types of PAH, one of which is pulmonary venoocclusive disease (PVOD). Unlike other PAH types, the hallmark pathology of PVOD is fibrous occlusion of the ...
Hegewald Matthew J - - 2009
Pulmonary hypertension is an important complication of COPD. A small subset of patients with COPD have severe pulmonary hypertension (PH) that is out of proportion to the mild increase in pulmonary arterial pressure observed commonly. Severe PH associated with COPD is associated with increased morbidity and mortality. Treatment options in ...
McGoon Michael D MD Pulmonary Hypertension Clinic, Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN 55905, USA. - - 2009
Pulmonary arterial hypertension is a progressive, symptomatic, and ultimately fatal disorder for which substantial advances in treatment have been made during the past decade. Effective management requires timely recognition and accurate diagnosis of the disorder and appropriate selection among therapeutic alternatives. Despite progress in treatment, obstacles remain that impede the ...
Yildiz Pinar - - 2009
The pathogenesis of pulmonary arterial hypertension (PAH) is complex, involving multiple modulating genes and environmental factors. Multifactorial impairment of the physiologic balance can lead to vasoconstriction, vascular smooth muscle cell and endothelial cell proliferation/fibrosis, inflammation, remodeling and in-situ thrombosis. These are the likely mechanisms that lead to narrowing of the ...
Faruqi S - - 2010
Sitaxentan, a highly-selective endothelin receptor antagonist (ETRA) and bosentan a non-selective ETRA are both approved for the treatment of idiopathic pulmonary arterial hypertension (iPAH). Sildenafil is a phosphodiesterase-5 (PDE-5) inhibitor used in the treatment of iPAH. Tadalafil is a long acting PDE-5 inhibitor largely unexplored for the treatment of iPAH. ...
Olsson Karen M - - 2009
Pulmonary arterial hypertension (PAH) has evolved from an untreatable condition to a disease for which several classes of drugs have now been approved, including various prostanoids, endothelin receptor antagonists and phosphodiesterase-5 inhibitors. Because the pathogenesis of pulmonary hypertension is increasingly understood, various new substances are now under clinical investigation, including ...
De Wolf Daniel - - 2009
Pulmonary arterial hypertension is a rare disorder in childhood, the two most common types being idiopathic pulmonary arterial hypertension and pulmonary hypertension associated with congenital left-to-right shunt lesions, together accounting for almost 90% of cases. The clinical presentation of idiopathic pulmonary arterial hypertension (familial and non familial) is essentially non-specific ...
Hughes Michael - - 2009
Left vocal cord palsy is a well-recognised rare complication of SLE. We encountered a gentleman who during an acute flare developed left vocal fold palsy (VCP). Immunosuppression was increased, but this only produced partial improvement. VCP is commonly but not exclusively caused by recurrent laryngeal nerve palsy. Other causes may ...
Hong-liang Zhang - - 2009
OBJECTIVE: Heart rate-corrected QT interval (QTc) and QTc dispersion (QTcd) are increased and associated with ventricular arrhythmia and an increase in sudden death in a variety of diseases. This study aimed to examine QTc and QTcd in pulmonary hypertension and assess their relationship with pulmonary arterial pressure. PATIENTS AND METHODS: ...
Streit Michael - - 2009
Pulmonary arterial hypertension is a complication of systemic lupus erythematosus. Mortality in pregnant patients with pulmonary arterial hypertension related to connective tissue disease is as high as 56%. The authors report the first case of a successful maternal-fetal outcome in a pregnant patient with systemic lupus erythematosus-associated pulmonary arterial hypertension ...
Ferns Sunita Juliana - - 2009
Pulmonary arterial hypertension (PAH) afflicts thousands of children worldwide. The pathophysiology involves intravascular proliferation and remodeling leading to an increase in pulmonary vascular resistance which if left untreated results in right heart failure and death. Signs and symptoms are subtle as the disease progresses to irreversible lung damage. There is ...
Ho Roger C M - - 2009
Since the Food and Drug Administration (FDA) approved the use of buprenorphine hydrochloride (Subutex) for the treatment of opiate dependence in 2002, there has been a global trend of its IV abuse which led to life-threatening medical complications such as infective endocarditis (IE), cardiac failure, and death. First episode IE ...
Aqel Raed - - 2009
Fibromuscular dysplasia (FMD) is predominantly a disease of younger women, but it can occur and cause refractory hypertension in the elderly. We present here classic angiographic and intravascular ultrasound images of FMD in a 70-year-old woman with refractory hypertension. Renal artery FMD should be included in the differential diagnosis of ...
Gowrinath K - - 2009
Chronic thromboembolic pulmonary hypertension (CTEPH) is an uncommon consequence of acute pulmonary embolism. We report CTEPH in a 58-year-old male who had pleurisy with a small haemorrhagic pleural effusion three months ago. The six-month course of anti-coagulation therapy failed to resolve thromboemboli completely or improve pulmonary hypertension. Computed tomographic pulmonary ...
Tulloh Robert - - 2009
Major advances have been made in the understanding and treatment of pulmonary hypertension in the last few years. Without treatment (medication) for idiopathic pulmonary arterial hypertension, which is a rare and potentially fatal condition, the survival time is only about 3 years after diagnosis. However, if pulmonary hypertension is secondary ...
Hassoun Paul M - - 2009
Pulmonary arterial hypertension (PAH), a common complication of systemic sclerosis, carries a very severe prognosis and is one of the leading causes of death in patients who suffer from it. Indeed, response to modern medical therapy has been disappointing in scleroderma-related PAH compared with other forms of PAH from the ...
Stewart Susan - - 2009
Pulmonary hypertension has a complex pathobiology and the term pulmonary arterial hypertension (PAH) includes a variety of pulmonary hypertensive diseases that have different aetiologies, but which may have a similar clinical presentation and, in some cases, the same response to medical treatment. More recent classifications have been based on aetiology, ...
Castañer Eva - - 2009
Chronic pulmonary thromboembolism is mainly a consequence of incomplete resolution of pulmonary thromboembolism. Increased vascular resistance due to obstruction of the vascular bed leads to pulmonary hypertension. Chronic thromboembolic pulmonary hypertension is clearly more common than previously was thought, and misdiagnosis is common because patients often present with nonspecific symptoms ...
Lloyd Kenneth Scott - - 2009
Pulmonary vascular hypertension in general is a progressive, nearly always fatal condition that until recently has had very few treatment options. Our understanding of the pulmonary vascular disease process has opened the window to earlier screening techniques, diagnosis, and treatment options. However, all current treatment options are complex and expensive ...
Jansa P - - 2009
Pulmonary arterial hypertension (PAH) is a severe chronic disorder of pulmonary arteries with progressive precapillary pulmonary hypertension, characterized by poor life quality and very poor prognosis. Unless treated, it causes death within 2-3 years from diagnosis. PAH affects mainly younger women. The treatment of PAH should not only be symptomatic, ...
Casserly Brian - - 2009
Ambrisentan is an endothelin receptor antagonist (ERA) that was recently approved for treatment of pulmonary arterial hypertension (PAH). Endothelin (ET) is a potent vasoconstrictor with mitogenic, hypertrophic and pro-inflammatory properties that is upregulated in pulmonary hypertensive diseases. The biologic effects of ET are mediated by 2 cell surface receptors termed ...
Roberts Kari E - - 2009
Endothelin receptor antagonism has emerged as an important therapeutic approach in pulmonary arterial hypertension (PAH). Bench to bedside scientific research has clearly shown that endothelin-1 (ET-1) is over-expressed in several forms of pulmonary vascular disease and plays an important pathogenetic role in the development and progression of PAH. Oral endothelin ...
Levy Andrew S - - 2009
This review highlights a number of nitric oxide (NO)-related mechanisms that contribute to coronary vascular function and that are likely affected by hypertension and thus become important clinically as potential considerations in prevention, diagnosis, and treatment of coronary complications of hypertension. Coronary vascular resistance is elevated in hypertension in part ...
Barman Scott A - - 2009
Pulmonary arterial hypertension (PAH) is a devastating disease characterized by progressive elevation of pulmonary arterial pressure and vascular resistance due to pulmonary vasoconstriction and vessel remodeling as well as inflammation. Rho-kinases (ROCKs) are one of the best-described effectors of the small G-protein RhoA, and ROCKs are involved in a variety ...
Sakao Seiichiro - - 2009
Severe pulmonary arterial hypertension, whether idiopathic or secondary, is characterized by structural alterations of microscopically small pulmonary arterioles. The vascular lesions in this group of pulmonary hypertensive diseases show actively proliferating endothelial cells without evidence of apoptosis. In this article, we review pathogenetic concepts of severe pulmonary arterial hypertension and ...
Tan Xiao-Yan - - 2009
Studies on the role of connexins (Cxs) in the pathogenesis of right ventricular (RV) hypertrophy in pulmonary arterial hypertension (PAH) have not been reported to date. Therefore, we established a rat model of PAH induced by monocrotaline (MCT), and they were randomized to three groups: Control, MCT, and MCT+bosentan. Through ...
Lu Ling - - 2008
Portopulmonary hypertension (PPH) is clinically defined as the development of pulmonary arterial hypertension complicated by portal hypertension, with or without advanced hepatic disease. Physical signs may be absent in mild to moderate PPH and only appear in a hyperdynamic circulatory state. Similar signs of advanced liver disease can be observed ...
Ewert Ralf - - 2008
Pulmonary hypertension is a clinically relevant, life-threatening disease. Based pathophysiologically on a dysbalance of vasoactive mechanisms, the therapeutic use of vasodilative agents is one of the major treatment options. Prostanoids, such as iloprost, are widely used in the treatment of patients with pulmonary hypertension. With the focus on pulmonary hypertension, ...
Frachon I - - 2008
The prognosis of postembolic pulmonary hypertension, a rare and serious disease, has been transformed with the curative intervention of pulmonary endarteriectomy. The screening is based on two key non invasive examinations, the cardiac ultrasound and ventilation-perfusion scintigraphy. The confirmation of the diagnosis and the determination of the best therapeutic options ...
Henkens, Ivo Reinier
Right ventricular overload covers a spectrum ranging from volume overload to pressure overload, and often is a combination of these, compromising cardiac function. Part I focuses on right ventricular volume overload in adults with Fallot’s tetralogy corrected in early childhood. We determined which patient characteristics are associated with a more ...
Doran Aimee - - 2008
Pulmonary arterial hypertension is a rare but progressive and life-threatening disease that presents considerable challenges for both the patient and the caregiver. Though complex, intravenous epoprostenol and treprostinil may improve long-term survival, exercise capacity, hemodynamics, and other clinical symptoms of pulmonary arterial hypertension. Recent advances in infusion pump technology offer ...
Popov Aron Frederik - - 2008
OBJECTIVE: Endothelin is the most potent endogenous vasoconstrictor and is involved in several vascular disorders such as arterial hypertension. Its intense interaction with other vasoactive hormone systems revealed the consideration about the endothelin gene as an interesting candidate for influencing the development of essential hypertension and hypertensive endorgan damage. The ...
Said Sami I - - 2008
Pulmonary vascular remodeling and inflammation often coexist in clinical and experimentally induced pulmonary arterial hypertension (PAH). In some instances, the pulmonary hypertension may be the primary, or at least the initial, problem, while inflammatory or autoimmune responses appear to initiate or dominate the picture in other cases. Based on studies ...
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