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"Pulmonary hypertension" OR "Pulmonary arterial hypertension"

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https://www.readbyqxmd.com/read/29775415/exercise-cardiac-mri-unmasks-right-ventricular-dysfunction-in-acute-hypoxia-and-chronic-pulmonary-arterial-hypertension
#1
Shareen Kaur Jaijee, Marina Quinlan, Pawel Tokarczuk, Matthew Clemence, Luke S Howard, J Simon R Gibbs, Declan O'Regan
Background - Coupling of right ventricular (RV) contractility to afterload is maintained at rest in the early stages of pulmonary arterial hypertension (PAH), but exercise may unmask depleted contractile reserves. We assessed whether elevated afterload reduces RV contractile reserve despite compensated resting function using non-invasive exercise imaging. Methods and Results - Fourteen patients with PAH (mean age 39.1 years, 10 females) and 34 healthy control subjects (mean age 35.6 years, 17 females) completed real-time cardiac magnetic resonance imaging during sub-maximal exercise breathing room-air...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29773606/optimising-experimental-research-in-respiratory-diseases-an-ers-statement
#2
Philippe Bonniaud, Aurélie Fabre, Nelly Frossard, Christophe Guignabert, Mark Inman, Wolfgang M Kuebler, Tania Maes, Wei Shi, Martin Stampfli, Stefan Uhlig, Eric White, Martin Witzenrath, Pierre-Simon Bellaye, Bruno Crestani, Oliver Eickelberg, Heinz Fehrenbach, Andreas Guenther, Gisli Jenkins, Guy Joos, Antoine Magnan, Bernard Maitre, Ulrich A Maus, Petra Reinhold, Juanita H J Vernooy, Luca Richeldi, Martin Kolb
Experimental models are critical for the understanding of lung health and disease and are indispensable for drug development. However, the pathogenetic and clinical relevance of the models is often unclear. Further, the use of animals in biomedical research is controversial from an ethical perspective.The objective of this task force was to issue a statement with research recommendations about lung disease models by facilitating in-depth discussions between respiratory scientists, and to provide an overview of the literature on the available models...
May 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29773069/high-altitude-pulmonary-hypertension
#3
Maurizio Bussotti, Giovanni Marchese
The effects of hypoxia on the human organism has been considered doubly fascinating by the scientific community: the knowledge of the discrete mechanisms allowing the acclimatization both at the genetic level or through the cell mediators production in addition to the macroscopic responses of the cardio-circulatory and ventilatory systems to a hypoxic environment has been progressively developed since the last century; moreover granting a safer stay in hypoxic conditions not only for the residents but also for the different cathegories of workers, sportsmen and tourists has been considered a worthy aim of the medical activity...
May 17, 2018: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/29772649/pulmonary-arterial-hypertension-pathophysiology-and-treatment
#4
REVIEW
Norris S H Lan, Benjamin D Massam, Sandeep S Kulkarni, Chim C Lang
Pulmonary arterial hypertension (PAH), the first category of pulmonary hypertension, is a chronic and progressive disorder characterised by angioproliferative vasculopathy in the pulmonary arterioles, leading to endothelial and smooth muscle proliferation and dysfunction, inflammation and thrombosis. These changes increase pulmonary vascular resistance and subsequent pulmonary arterial pressure, causing right ventricular failure which leads to eventual death if untreated. The management of PAH has advanced rapidly in recent years due to improved understanding of the condition's pathophysiology, specifically the nitric oxide, prostacyclin-thromboxane and endothelin-1 pathways...
May 16, 2018: Diseases (Basel)
https://www.readbyqxmd.com/read/29769296/interpreting-risk-reduction-in-clinical-trials-for-pulmonary-arterial-hypertension
#5
REVIEW
Annie C Lajoie, Sébastien Bonnet, Yves Lacasse, Jean-Christophe Lega, Steeve Provencher
Because of scepticism concerning study results when relying solely on relative effect estimates, the number needed to treat (NNT) has been used extensively to quantify the net clinical benefit of an intervention, and is reported increasingly in randomised trials and observational studies. This method is a simple measure representing the number of patients who would need to be treated to prevent one additional adverse event. However, like relative risk, the NNT is an inherently time-dependent measure. Thus, its calculation may lead to misleading interpretations, especially for studies involving varying follow-up times or recurrent outcomes...
June 30, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/29768493/remote-ischemic-preconditioning-stat3-dependently-ameliorates-pulmonary-ischemia-reperfusion-injury
#6
Nanfu Luo, Jin Liu, Yan Chen, Huan Li, Zhaoyang Hu, Geoffrey W Abbott
The lungs are highly susceptible to injury, including ischemia/reperfusion (I/R) injury. Pulmonary I/R injury can occur when correcting conditions such as primary pulmonary hypertension, and is also relatively common after lung transplantation or other cardiothoracic surgery. Methods to reduce pulmonary I/R injury are urgently needed to improve outcomes following procedures such as lung transplantation. Remote liver ischemic preconditioning (RLIPC) is an effective cardioprotective measure, reducing damage caused by subsequent cardiac I/R injury, but little is known about its potential role in pulmonary protection...
2018: PloS One
https://www.readbyqxmd.com/read/29768335/igg4-related-disease-of-pulmonary-artery-causing-pulmonary-hypertension
#7
Hui Deng, Sheng Zhao, Yunlong Yue, Yong Liu, Yali Xu, Jin Qian, Xiaorong Ma, Peiliang Gao, Xiaoyan Yao, Xin Jiang, Xiqi Xu, Zhicheng Jing, Yong Wang, Lei Pan, Xinying Xue
IgG4-related disease (IgG4-RD) is recognized as an immune-mediated condition with pathology features of lymphoplasmacytic infiltrate, storiform fibrosis, and obliterative phlebitis, accompanied with or without elevated serum IgG4 concentrations. However, few of pulmonary artery IgG4-RD causing pulmonary hypertension (PH) was reported.The medical records of 3 patients with pulmonary artery IgG4-RD inducing PH were analyzed retrospectively.Imaging findings demonstrated that the lesions of 3 patients located in pulmonary artery, which were initially diagnosed as pulmonary thrombus or malignant tumor...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29767576/characteristics-and-survival-data-from-latvian-pulmonary-hypertension-registry-comparison-of-prospective-pulmonary-hypertension-registries-in-europe
#8
Andris Skride, Kristaps Sablinskis, Aivars Lejnieks, Ainars Rudzitis, Irene Lang
No abstract text is available yet for this article.
January 1, 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29767575/dart-to-the-target-an-alternative-bull-s-eye-parametric-display-for-european-society-of-cardiology-european-respiratory-society-goal-oriented-risk-reduction-strategy-in-pulmonary-arterial-hypertension
#9
Cihangir Kaymaz, Ozgur Yasar Akbal, Aykun Hakgor, Hacer Ceren Tokgoz, Seda Tanyeri
No abstract text is available yet for this article.
January 1, 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29767574/right-ventricular-stroke-work-correlates-with-outcomes-in-pediatric-pulmonary-arterial-hypertension
#10
Weiguang Yang, Alison L Marsden, Michelle T Ogawa, Charlotte Sakarovitch, Keeley K Hall, Marlene Rabinovitch, Jeffrey A Feinstein
No abstract text is available yet for this article.
January 1, 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29767573/express-interleukin-6-trans-signaling-contributes-to-chronic-hypoxia-induced-pulmonary-hypertension
#11
Levi D Maston, David T Jones, Wieslawa Giermakowska, Tamara A Howard, Juan M Ramiro-Diaz, Thomas Resta, Nikki Jernigan, Lindsay Herbert, Anna Alice Maurice, Laura V Gonzalez Bosc
No abstract text is available yet for this article.
January 1, 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29767367/a-review-of-transcriptome-analysis-in-pulmonary-vascular-diseases
#12
Dustin R Fraidenburg, Roberto F Machado
Transcriptome analysis is a powerful tool in the study of pulmonary vascular disease and pulmonary hypertension. Pulmonary hypertension is a disease process that consists of several unique pathologies sharing a common clinical definition, that of elevated pressure within the pulmonary circulation. As such, it has become increasingly important to identify both similarities and differences among the different classes of pulmonary hypertension. Transcriptome analysis has been an invaluable tool both in the basic science research on animal models as well as clinical research among the various different groups of pulmonary hypertension...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29764826/systemic-sclerosis-severe-pulmonary-arterial-hypertension-and-pericardial-effusion-at-diagnosis
#13
Patricia Moniz, Daniel Rei, Joana Rodrigues, Arturo Botella
A 51-year-old female patient with a recent hospital admission reported to the emergency room (ER) with progressive worsening of fatigue, dyspnoea and chest discomfort. She had been recently admitted and discharged with the diagnosis of pericarditis and medicated with non-steroidal anti-inflammatory drugs and diuretics. She returned to the ER with persisting symptoms. Echocardiography was repeated and showed signs of elevated right ventricular systolic pressure and a slightly increased moderate/severe pericardial effusion without signs of cardiac tamponade...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29764745/can-results-from-a-japanese-pulmonary-hypertension-registry-have-an-impact-on-western-guidelines
#14
EDITORIAL
Nobuhiro Tanabe
No abstract text is available yet for this article.
March 13, 2018: Respiratory Investigation
https://www.readbyqxmd.com/read/29764590/-characteristics-of-ventricular-function-in-pulmonary-hypertension-patients-with-different-shape-of-interventricular-septum-preliminary-study-with-cardiac-magnetic-resonance-imaging
#15
Dan Wang, Zhang Zhang, Fan Yang, Le Zhang, Zhenwen Yang, Wen Ren, Tielian Yu, Dong Li
BACKGROUND: To study the characteristics of ventricular function in Pulmonary Hypertension (PH) Patients with different shape of Interventricular Septum (IVS) by cardiac magnetic resonance (CMR). METHODS: 36 PH patients diagnosed by right heart catheterization accepted CMR. According to the morphology of IVS, the patients were divided into two groups: the non-deformation group (10 patients) and the deformation group (26 patients). The ventricular function parameters were as follows: RV and LV end-diastolic volume index (EDVI), end-systolic volume index (ESVI), stroke volume index (SVI), cardiac index (CI), ejection fraction (EF), and myocardial mass index (MMI)...
May 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29764471/inhaled-nitric-oxide-as-a-rescue-therapy-in-a-preterm-neonate-with-severe-pulmonary-hypertension-a-case-report
#16
Martina Busè, Francesco Graziano, Fabio Lunetta, Giorgio Sulliotti, Vincenzo Duca
BACKGROUND: Inhaled nitric oxide (iNO) has been approved for the treatment of persistent pulmonary hypertension of the newborn (PPHN) in term and near-term newborns. Its role in the management of persistent pulmonary hypertension in preterm infants is not clear. Although guidelines do not exist, some studies have shown that iNO could be used as a rescue therapy in preterm neonate with severe pulmonary hypertension. CASE PRESENTATION: We describe the case of a preterm neonate, born at 30 + 1 weeks of gestation, with hypoxic respiratory failure not responding to maximal conventional therapy...
May 15, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29764373/a-subclinical-high-tricuspid-regurgitation-pressure-gradient-independent-of-the-mean-pulmonary-artery-pressure-is-a-risk-factor-for-the-survival-after-living-donor-liver-transplantation
#17
Yosuke Saragai, Akinobu Takaki, Yuzo Umeda, Takashi Matsusaki, Tetsuya Yasunaka, Atsushi Oyama, Ryuji Kaku, Kazufumi Nakamura, Ryuichi Yoshida, Daisuke Nobuoka, Takashi Kuise, Kosei Takagi, Takuya Adachi, Nozomu Wada, Yasuto Takeuchi, Kazuko Koike, Fusao Ikeda, Hideki Onishi, Hidenori Shiraha, Shinichiro Nakamura, Hiroshi Morimatsu, Hiroshi Ito, Toshiyoshi Fujiwara, Takahito Yagi, Hiroyuki Okada
BACKGROUND: Portopulmonary hypertension (POPH) is characterized by pulmonary vasoconstriction, while hepatopulmonary syndrome (HPS) is characterized by vasodilation. Definite POPH is a risk factor for the survival after orthotopic liver transplantation (OLT), as the congestive pressure affects the grafted liver, while subclinical pulmonary hypertension (PH) has been acknowledged as a non-risk factor for deceased donor OLT. Given that PH measurement requires cardiac catheterization, the tricuspid regurgitation pressure gradient (TRPG) measured by echocardiography is used to screen for PH and congestive pressure to the liver...
May 15, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29763900/c-prosp-b-a-possible-biomarker-for-pulmonary-diseases
#18
Nicolas Kahn, Anne-Kathrin Rossler, Katrin Hornemann, Thomas Muley, Ekkehard Grünig, Werner Schmidt, Felix J F Herth, Michael Kreuter
BACKGROUND: Detection of surfactant proteins A and D (SP-A and SP-D) in the serum of patients with pulmonary diseases is thought to reflect an injury of the alveolar epithelial barrier and as such serve as a biomarker for these diseases. However, the data for SP-B are limited. OBJECTIVES: The aim of this feasibility study was to assess whether immature SP-B pre-proteins might have value as a possible biomarker for pulmonary diseases. METHODS: In serum samples from patients with different chronic lung diseases (interstitial lung diseases [ILDs], chronic obstructive pulmonary disease, asthma, lung cancer, pulmonary hypertension, inflammation, patients on ventilator support; total n = 283), C-proSP-B was measured using an electrochemiluminescence immunoassay based on mouse monoclonal anti-C-proSP-B antibodies...
May 15, 2018: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/29763468/clinical-phenotypes-and-survival-of-pre-capillary-pulmonary-hypertension-in-systemic-sclerosis
#19
David Launay, David Montani, Paul M Hassoun, Vincent Cottin, Jérôme Le Pavec, Pierre Clerson, Olivier Sitbon, Xavier Jaïs, Laurent Savale, Jason Weatherald, Vincent Sobanski, Stephen C Mathai, Majid Shafiq, Jean-François Cordier, Eric Hachulla, Gérald Simonneau, Marc Humbert
Pre-capillary pulmonary hypertension (PH) in systemic sclerosis (SSc) is a heterogeneous condition with an overall bad prognosis. The objective of this study was to identify and characterize homogeneous phenotypes by a cluster analysis in SSc patients with PH. Patients were identified from two prospective cohorts from the US and France. Clinical, pulmonary function, high-resolution chest tomography, hemodynamic and survival data were extracted. We performed cluster analysis using the k-means method and compared survival between clusters using Cox regression analysis...
2018: PloS One
https://www.readbyqxmd.com/read/29763424/prevalence-of-primary-sj%C3%A3-gren-s-syndrome-in-patients-undergoing-evaluation-for-pulmonary-arterial-hypertension
#20
Tatsuyuki Sato, Masaru Hatano, Yukiko Iwasaki, Hisataka Maki, Akihito Saito, Shun Minatsuki, Toshiro Inaba, Eisuke Amiya, Keishi Fujio, Masafumi Watanabe, Kazuhiko Yamamoto, Issei Komuro
BACKGROUND: The prevalence of pulmonary arterial hypertension (PAH) in primary Sjögren's syndrome (SS) had been reported to be rare. However, recent studies using echocardiography as a screening method showed conflicting results, and the true prevalence is still unclear. Since diagnosing primary SS is difficult because of its heterogeneous nature, a number of patients with primary-SS-associated PAH may be misdiagnosed with idiopathic PAH, losing their chance to undergo immunosuppressive therapy...
2018: PloS One
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