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Pulmonary arterial hypertension

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https://www.readbyqxmd.com/read/28430738/three-dimensional-fractal-analysis-of-99mtc-maa-spect-images-in-chronic-thromboembolic-pulmonary-hypertension-for-evaluation-of-response-to-balloon-pulmonary-angioplasty-association-with-pulmonary-arterial-pressure
#1
Yasuhiro Maruoka, Michinobu Nagao, Shingo Baba, Takuro Isoda, Yoshiyuki Kitamura, Yuzo Yamazaki, Koichiro Abe, Masayuki Sasaki, Kohtaro Abe, Hiroshi Honda
OBJECTIVE: Balloon pulmonary angioplasty (BPA) is used for inoperable chronic thromboembolic pulmonary hypertension (CTEPH), but its effect cannot be evaluated noninvasively. We devised a noninvasive quantitative index of response to BPA using three-dimensional fractal analysis (3D-FA) of technetium-99m-macroaggregated albumin (Tc-MAA) single-photon emission computed tomography (SPECT). PATIENTS AND METHODS: Forty CTEPH patients who underwent pulmonary perfusion scintigraphy and mean pulmonary arterial pressure (mPAP) measurement by right heart catheterization before and after BPA were studied...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28430622/serious-adverse-events-of-cell-therapy-for-respiratory-diseases-a-systematic-review-and-meta-analysis
#2
REVIEW
Runzhen Zhao, Zhenlei Su, Jing Wu, Hong-Long Ji
BACKGROUND: Cell therapy holds the most promising for acute and chronic deleterious respiratory diseases. However, the safety and tolerance for lung disorders are controversy. METHODS: We undertook a systematic review and meta-analyses of all 23 clinical studies of cell therapy. The outcomes were odds ratio (OR), risk difference (RD), Peto OR, relative risk, and mean difference of serious adverse events. RESULTS: 342 systemic infusions and 57 bronchial instillations (204 recipients) of cells were analyzed for acute respiratory distress syndrome (ARDS), bronchopulmonary dysplasia, pulmonary arterial hypertension, silicosis, sarcoidosis, extensively drug-resistant tuberculosis, chronic obstructive pulmonary diseases (COPD), and idiopathic pulmonary fibrosis...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429083/intravenous-treprostinil-infusion-via-a-fully-implantable-pump-for-pulmonary-arterial-hypertension
#3
Ralf Ewert, Manuel J Richter, Regina Steringer-Mascherbauer, Ekkehard Grünig, Tobias J Lange, Christian F Opitz, Christian Warnke, Hossein-Ardeschir Ghofrani
OBJECTIVES: Parenteral prostanoids infused via external pumps are well-established pulmonary arterial hypertension (PAH) treatments. However, local side-effects and systemic infections restrict their use. The purpose of this study was to investigate the safety of a fully implantable treprostinil infusion pump (LENUS Pro(®)) in patients with PAH. METHODS: Thirty patients with PAH undergoing pump implantation (with stable PAH therapy for ≥3 weeks pre-implantation) were included in this prospective, multicenter, observational study (NCT01979822)...
April 20, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28428963/quercetin-inhibits-pulmonary-arterial-endothelial-cell-transdifferentiation-possibly-by-akt-and-erk1-2-pathways
#4
Shian Huang, Xiulong Zhu, Wenjun Huang, Yuan He, Lingpin Pang, Xiaozhong Lan, Xiaorong Shui, Yanfang Chen, Can Chen, Wei Lei
This study aimed to investigate the effects and mechanisms of quercetin on pulmonary arterial endothelial cell (PAEC) transdifferentiation into smooth muscle-like cells. TGF-β1-induced PAEC transdifferentiation models were applied to evaluate the pharmacological actions of quercetin. PAEC proliferation was detected with CCK8 method and BurdU immunocytochemistry. Meanwhile, the identification and transdifferentiation of PAECs were determined by FVIII immunofluorescence staining and α-SMA protein expression...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28427554/clinical-and-hemodynamic-improvements-after-adding-ambrisentan-to-background-pde5i-therapy-in-patients-with-pulmonary-arterial-hypertension-exhibiting-a-suboptimal-therapeutic-response-athena-1
#5
Shelley Shapiro, Fernando Torres, Jeremy Feldman, Anne Keogh, Martine Allard, Christiana Blair, Hunter Gillies, James Tislow, Ronald J Oudiz
OBJECTIVE: Pulmonary arterial hypertension (PAH) is a condition which may lead to right ventricular failure and premature death. While recent data supports the initial combination of ambrisentan (a selective ERA) and tadalafil (a PDE5i) in functional class II or III patients, there is no published data describing the safety and efficacy of ambrisentan when added to patients currently receiving a PDE5i and exhibiting a suboptimal response. The ATHENA-1 study describes the safety and efficacy of the addition of ambrisentan in this patient population...
May 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28427470/pulmonary-hypertension-in-lymphangioleiomyomatosis-prevalence-severity-and-the-role-of-carbon-monoxide-diffusion-capacity-as-a-screening-method
#6
Carolina S G Freitas, Bruno G Baldi, Carlos Jardim, Mariana S Araujo, Juliana Barbosa Sobral, Gláucia I Heiden, Ronaldo A Kairalla, Rogério Souza, Carlos R R Carvalho
BACKGROUND: Lymphangioleiomyomatosis (LAM) is included within group 5 of the current PH classification (unclear multifactorial mechanisms). However, data regarding the occurrence of PH in LAM are scarce. The aims of the study were to describe the prevalence and characteristics of PH in a large cohort of LAM patients with different levels of severity, and to evaluate the role of echocardiography and carbon monoxide diffusion capacity (DLCO) as screening methods for PH in LAM. METHODS: One hundred five LAM patients underwent transthoracic echocardiography, pulmonary function tests (PFTs) and 6-min walk test (6MWT)...
April 20, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28425346/ambrisentan-a-review-of-its-use-in-pulmonary-arterial-hypertension
#7
Belinda N Rivera-Lebron, Michael G Risbano
Pulmonary arterial hypertension (PAH) is a progressive disease defined by an elevation in pulmonary arterial pressure that can lead to right heart failure and death. Ambrisentan is a selective endothelin receptor antagonist approved for the treatment of idiopathic, heritable PAH and connective tissue disease-associated PAH. Ambrisentan has been shown to improve exercise capacity and hemodynamics with an acceptable side-effect profile. It has also proven to be safely used in combination with other PAH-specific medications, especially with phosphodiesterase-5 inhibitors...
April 1, 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/28425226/a-review-of-pediatric-pulmonary-hypertension-with-new-guidelines
#8
Serdar Kula, Ayhan Pektaş
This study aims to review pediatric pulmonary hypertension (PH) by comparing the guidelines of the European Society of Cardiology (ESC)/European Respiratory Society (ERS), the American Heart Association (AHA)/American Thoracic Society (ATS), and the European Pediatric Pulmonary Vascular Disease Network (EPPVDN). All three sets of guidelines define PH as having a mean pulmonary artery pressure of ≥25 mmHg and accept the validity of the World Health Organization (WHO) classification system. Every child with a high index of suspicion for PH should undergo an initial work-up of chest X-rays, electrocardiography, and echocardiography...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424250/unifying-mechanism-for-different-fibrotic-diseases
#9
Gerlinde Wernig, Shih-Yu Chen, Lu Cui, Camille Van Neste, Jonathan M Tsai, Neeraja Kambham, Hannes Vogel, Yaso Natkunam, D Gary Gilliland, Garry Nolan, Irving L Weissman
Fibrotic diseases are not well-understood. They represent a number of different diseases that are characterized by the development of severe organ fibrosis without any obvious cause, such as the devastating diseases idiopathic pulmonary fibrosis (IPF) and scleroderma. These diseases have a poor prognosis comparable with endstage cancer and are uncurable. Given the phenotypic differences, it was assumed that the different fibrotic diseases also have different pathomechanisms. Here, we demonstrate that many endstage fibrotic diseases, including IPF; scleroderma; myelofibrosis; kidney-, pancreas-, and heart-fibrosis; and nonalcoholic steatohepatosis converge in the activation of the AP1 transcription factor c-JUN in the pathologic fibroblasts...
April 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28423234/pulmonary-vein-isolation-with%C3%A2-concomitant%C3%A2-renal-artery-denervation%C3%A2-is-associated-with-reduction-of-both-arterial-blood-pressure-and-atrial-fibrillation-burden-data-from-implantable-cardiac-monitor
#10
Alexander Romanov, Evgeny Pokushalov, Dmitry Ponomarev, Artem Strelnikov, Vitaliy Shabanov, Denis Losik, Alexander Karaskov, Jonathan S Steinberg
BACKGROUND: Renal artery denervation (RDN) has provided incremental atrial fibrillation (AF) suppression after pulmonary vein isolation (PVI) in patients with AF in the setting of drug-resistant hypertension. OBJECTIVE: To assess the relationship between changes of mean blood pressure (BP) and AF recurrences/AF burden after PVI combined with RDN. METHODS: All patients from two randomized studies with symptomatic paroxysmal AF and/or persistent AF and resistant hypertension who underwent PVI only (n=37) or PVI with RDN (n=39), and implantable cardiac monitor (ICM) implantation, were eligible for this study...
April 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28422842/the-role-of-renoscintigraphy-and-surgery-in-the-management-of-page-kidney-a-case-report
#11
Yu-Li Chiu, Chin Hu, Sin-Di Lee, Po-Yin Chen, Cheng-Pin Wang
RATIONALE: Page kidney is an uncommon condition that hypertension occurs secondary to microvascular ischemia and alternation of small-vessel hemodynamics due to external compression of renal parenchyma and activation of the renin-angiotensin-aldosterone system. There are no specific guidelines for the management of Page kidney in the literatures. PATIENT CONCERNS: A 17-year-old teenager who had Fontan procedure for tricuspid and pulmonary atresia in early childhood suffered from sudden onset of severe left flank pain during cardiac catheterization procedure...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28420826/efficacy-and-safety-of-an-orally-administered-selective-prostacyclin-receptor-agonist-selexipag-in-japanese-patients-with-pulmonary-arterial-hypertension
#12
Nobuhiro Tanabe, Satoshi Ikeda, Nobuhiro Tahara, Keiichi Fukuda, Masaru Hatano, Hiroshi Ito, Tomotaka Nakayama, Toshihisa Anzai, Akiyoshi Hashimoto, Teruo Inoue, Kouji Kajinami, Yasuki Kihara, Hideyuki Kinoshita, Koichiro Kuwahara, Toyoaki Murohara, Osamu Okazaki, Satoshi Sakai, Toru Satoh, Yutaka Takeda, Yasuchika Takeishi, Mitsugu Taniguchi, Hiroshi Watanabe, Takeshi Yamamoto, Keiko Yamauchi-Takihara, Koichiro Yoshioka, Shigetake Sasayama
BACKGROUND: Selexipag is an orally available prostacyclin receptor (IP receptor) agonist with a non-prostanoid structure. In this open-label Phase II trial, the efficacy and safety of selexipag in Japanese patients with pulmonary arterial hypertension (PAH) is examined.Methods and Results:Selexipag was administered at 200 μg twice daily and titrated up to 1,600 μg by increments of 200 μg in 37 subjects to reach the individual maximum tolerated dose. At 16 weeks, in 33 patients comprising the per-protocol set, the pulmonary vascular resistance (PVR; primary endpoint) decreased from 683...
April 18, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28419740/pulmonary-hypertension-associated-with-combined-fibrosing-mediastinitis-and-bronchial-anthracofibrosis-a-retrospective-analysis-in-a-single-chinese-hospital
#13
Yan Xu, Wenbing Xu, Yongjian Liu, Xinlun Tian, Kaifeng Xu, Juhong Shi, Mengzhao Wang, Baiqiang Cai, Min Peng
INTRODUCTION: Both fibrosing mediastinitis (FM) and bronchial anthracofibrosis (BAF) are unique diseases. The combined appearance of FM and BAF is extremely rare. OBJECTIVES: The aim of this study was to investigate the clinical features of patients with coexisting FM and BAF. METHOD: Between January 2003 and December 2015, a total of eight patients were diagnosed at the Peking Union Medical College Hospital as having combined FM and BAF. The clinical presentations, radiographic features, and bronchoscopic findings of the eight patients were reviewed...
April 17, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28417295/drug-induced-pulmonary-arterial-hypertension-a-review
#14
REVIEW
Lohit Garg, Ghulam Akbar, Sahil Agrawal, Manyoo Agarwal, Leila Khaddour, Rishin Handa, Aakash Garg, Mahek Shah, Brijesh Patel, Bhavinkumar D Dalal
Pulmonary arterial hypertension (PAH) is a subgroup of PH patients characterized hemodynamically by the presence of pre-capillary PH, defined by a pulmonary artery wedge pressure (PAWP) ≤15 mmHg and a PVR >3 Wood units (WU) in the absence of other causes of pre-capillary PH. According to the current classification, PAH can be associated with exposure to certain drugs or toxins such as anorectic agents, amphetamines, or selective serotonin reuptake inhibitors. With the improvement in awareness and recognition of the drug-induced PAH, it allowed the identification of additional drugs associated with an increased risk for the development of PAH...
April 18, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28417287/predictors-of-arrhythmia-recurrence-after-balloon-cryoablation-of-atrial-fibrillation-the-value-of-caap-af-risk-scoring-system
#15
Mohamed Sanhoury, Massimo Moltrasio, Fabrizio Tundo, Stefania Riva, Antonio Dello Russo, Michela Casella, Claudio Tondo, Gaetano Fassini
PURPOSE: In the present study, we aimed to test the value of CAAP-AF score for prediction of atrial fibrillation (AF) recurrence at follow-up in a group of our patients treated by balloon cryoablation. METHODS: A total of 283 symptomatic drug-refractory AF patients [261 (92%) with paroxysmal AF] who underwent pulmonary vein isolation (PVI) with second-generation cryoballoon between April 2012 and October 2016 were included. The CAAP-AF score was calculated for every patient...
April 18, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28417056/therapeutic-effect-of-prostaglandin-e1-in-monocrotaline-induced-pulmonary-arterial-hypertension-rats
#16
Jae Chul Lee
Pulmonary arterial hypertension (PAH) is a severe pulmonary vascular disease characterized by sustained increase in pulmonary arterial pressure and excessive thickening and remodeling of distal small pulmonary arteries. During disease progression, PAH include increase in mean pulmonary arterial pressure, right ventricular (RV) enlargement, increased pulmonary vascular resistance, and smooth muscle hypertrophy in pulmonary arterioles. Several anti-PAH therapies targeting various pathways involved in PAH progression have been approved by the Food and Drug Adminstration...
March 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28416930/what-are-the-prevalence-of-abdominal-aortic-aneurysm-in-patients-with-chronic-obstructive-pulmonary-diseases-and-the-characteristics-of-these-patients
#17
Ulku Aka Akturk, Nagihan Durmus Kocak, Suleyman Akturk, Mert Dumantepe, Aysun Sengul, Mehmet Arif Akcay, Makbule Ozlem Akbay, Feyyaz Kabadayi, Dilek Ernam
OBJECTIVE: To determine the prevalence of abdominal aortic aneurysm (AAA) in patients with chronic obstructive pulmonary disease (COPD) and to assess the characteristics of these patients. MATERIALS AND METHODS: Stable COPD patients (age, >40 years) were included in the study between January 2014 and June 2014. Patients with acute exacerbations and a previous lung resection were excluded. Data regarding demographic characteristics were recorded. The modified Medical Research Council (mMRC) dyspnea scale was used to assess the severity of breathlessness...
February 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28416592/-wnt-er-is-coming-wnt-signalling-in-chronic-lung-diseases
#18
H A Baarsma, M Königshoff
Chronic lung diseases represent a major public health problem with only limited therapeutic options. An important unmet need is to identify compounds and drugs that target key molecular pathways involved in the pathogenesis of chronic lung diseases. Over the last decade, there has been extensive interest in investigating Wingless/integrase-1 (WNT) signalling pathways; and WNT signal alterations have been linked to pulmonary disease pathogenesis and progression. Here, we comprehensively review the cumulative evidence for WNT pathway alterations in chronic lung pathologies, including idiopathic pulmonary fibrosis, pulmonary arterial hypertension, asthma and COPD...
April 17, 2017: Thorax
https://www.readbyqxmd.com/read/28416589/multimodality-imaging-of-the-tricuspid-valve-with-implication-for-percutaneous-repair-approaches
#19
REVIEW
Francesco Ancona, Stefano Stella, Maurizio Taramasso, Claudia Marini, Azeem Latib, Paolo Denti, Francesco Grigioni, Maurice Enriquez-Sarano, Ottavio Alfieri, Antonio Colombo, Francesco Maisano, Eustachio Agricola
Nowadays some percutaneous options for tricuspid valve (TV) repair are available: Tricinch (4Tech Cardio, Galway, Ireland) mimicking the Kay procedure, Trialign (Mitralign, Boston, MA, USA) aiming to bicuspidise TV, MitraClip (Abbott Vascular, Abbott Park, Illinois, USA) mimicking Alfieri's stitch, direct transcatheter annuloplasty with Cardioband (Valtech Cardio, Or Yehuda, Israel) and transcatheter Forma Repair (Edwards Lifesciences, Irvine, California, USA) providing a surface for leaflet coaptation. A multimodality imaging approach is fundamental for defining the pathophysiology of tricuspid regurgitation (TR), preprocedural planning and intraprocedural monitoring...
April 17, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28416206/reversible-interferon-induced-pulmonary-arterial-hypertension-in-a-patient-with-multiple-sclerosis
#20
Alberto García Ortega, Raquel López Reyes, Ana Torrents Vilar, Enrique Zaldivar Olmeda, Marcos Prado Barragan
No abstract text is available yet for this article.
April 14, 2017: Archivos de Bronconeumología
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