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"Pulmonary hypertension" OR "Pulmonary arterial hypertension"

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https://www.readbyqxmd.com/read/29161579/correlation-between-lung-perfusion-blood-volume-and-spect-images-in-patients-with-chronic-thromboembolic-pulmonary-hypertension-by-balloon-pulmonary-angioplasty
#1
Hirofumi Koike, Eijun Sueyoshi, Ichiro Sakamoto, Masataka Uetani, Tomoo Nakata, Kouji Maemura
OBJECTIVES: We evaluated the reperfusion by balloon pulmonary angioplasty (BPA) in lung PBV and SPECT images. METHODS: In total, 17 patients and 57 sessions were evaluated. Pre-BPA and post-BPA lung PBV and SPECT/CT images, based on both anatomical segments and physiologic regions (upper/middle/lower) were compared. RESULTS: BPA had a positive effect on most hypoperfused/unperfused segments/regions. There was generally a high rate of agreement between PBV measurements and SPECT/CT...
November 11, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29161284/lung-and-heart-lung-transplantation-in-pulmonary-arterial-hypertension
#2
Manuel López-Meseguer, Carlos A Quezada, Maria A Ramon, María Lázaro, Laura Dos, Antonio Lara, Raquel López, Isabel Blanco, Pilar Escribano, Antonio Roman
BACKGROUND: Real use of lung (LT) and heart-lung (HLT) transplantation in pulmonary arterial hypertension (PAH) is unknown. The objectives were to describe the indication of these procedures on PAH treatment in a national cohort of PAH patients, and to analyze the potential improvement of its indication in severe patients. METHODS: Eligibility for LT/HLT was assessed for each deceased patient. Incident patients from REHAP diagnosed between January 2007 and March 2015 and considered eligible for LT/HLT were grouped as follows: those who finally underwent transplantation (LTP) and those who died (D-Non-LT)...
2017: PloS One
https://www.readbyqxmd.com/read/29160639/predictors-of-mortality-in-neonates-with-giant-omphaloceles
#3
Amulya K Saxena, Maja Raicevic
INTRODUCTION: This analysis was performed a review of giant-omphaloceles to determine the predictors of mortality. EVIDENCE ACQUISITION: Pubmed® and KoBson databases were searched for terms "giant" "omphalocele" and "mortality". Primary end points included mortality correlation with gestational age (GA), birth weight (BW), eviscerated organs, associated anomalies and management. To calculate mean and median values IBM SPSS version 23.0 was used. EVIDENCE SYNTHESIS: After de-duplication and review search revealed 42 articles of which 23 met our inclusion criteria with 396 giant-omphaloceles for this analysis...
November 21, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/29159668/new-pulmonary-hypertension-model-in-conscious-dogs-to-investigate-pulmonary-selectivity-of-acute-pharmacological-interventions
#4
Thomas Mondritzki, Philip Boehme, Lena Schramm, Julia Vogel, Ilka Mathar, Peter Ellinghaus, Peter Kolkhof, Erwin Bischoff, Jörg Hüser, Wilfried Dinh, Peter Sandner, Hubert Truebel
PURPOSE: Testing of investigational drugs in animal models is a critical step in drug development. Current models of pulmonary hypertension (PH) have limitations. The most relevant outcome parameters such as pulmonary artery pressure (PAP) are measured invasively which requires anesthesia of the animal. We developed a new canine PH model in which pulmonary vasodilators can be characterized in conscious dogs and lung selectivity can be assessed non-invasively. METHODS: Telemetry devices were implanted to measure relevant hemodynamic parameters in conscious dogs...
November 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29159269/pulmonary-artery-dysfunction-in-chronic-thromboembolic-pulmonary-hypertension
#5
Hidetoshi Chibana, Nobuhiro Tahara, Naoki Itaya, Takashi Ishimatsu, Masahiro Sasaki, Motoki Sasaki, Takaharu Nakayoshi, Masanori Ohtsuka, Shinji Yokoyama, Ken-Ichiro Sasaki, Takafumi Ueno, Yoshihiro Fukumoto
Background: Unresolved thromboemboli in the pulmonary arteries (PA) is known to cause chronic thromboembolic pulmonary hypertension (CTEPH). However, it remains unknown if vascular dysfunction in pulmonary arteries exists in patients with CTEPH. Methods and results: We enrolled 7 female patients with CTEPH in this study, who have stable pulmonary hemodynamics after balloon pulmonary angioplasty (age; 73.6 ± 3.0 years old, mean right atrial pressure; 4.1 ± 0...
December 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/29158679/treatment-of-pulmonary-hypertension-with-left-heart-disease-a-concise-review
#6
REVIEW
Anish Desai, Shilpa A Desouza
Pulmonary hypertension (PH) is defined by a mean pulmonary artery pressure ≥ 25 mmHg, as determined by right heart catheterization. Pulmonary arterial hypertension (PAH) can no longer be considered an orphan disease given the increase in awareness and availability of new drugs. PH carries with it a dismal prognosis and leads to significant morbidity and mortality. Symptoms can range from dyspnea, fatigue and chest pain to right ventricular failure and death. PH is divided into five groups by the World Health Organization (WHO), based on etiology...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/29158355/models-and-molecular-mechanisms-of-world-health-organization-group-2-to-4-pulmonary-hypertension
#7
REVIEW
Ping Yu Xiong, Francois Potus, Winnie Chan, Stephen L Archer
No abstract text is available yet for this article.
November 20, 2017: Hypertension
https://www.readbyqxmd.com/read/29157525/transcatheter-tricuspid-valve-replacement
#8
REVIEW
Amar Krishnaswamy, Jose Navia, Samir R Kapadia
Tricuspid regurgitation (TR) is a common entity, most commonly functional in nature due to right-sided dysfunction in the setting of concomitant cardiac disease or pulmonary hypertension. Patients living with TR often experience numerous limitations as a result of right-sided heart failure symptoms, including functional decline, frequent hospitalizations, liver failure, and kidney failure. Furthermore, patients with significant TR demonstrate worse survival, although a cause-and-effect relationship has not been proven...
January 2018: Interventional cardiology clinics
https://www.readbyqxmd.com/read/29157517/balloon-pulmonary-angioplasty-for-chronic-thromboembolic-pulmonary-hypertension
#9
REVIEW
Ehtisham Mahmud, Omid Behnamfar, Lawrence Ang, Mitul P Patel, David Poch, Nick H Kim
Chronic thromboembolic pulmonary hypertension (CTEPH) is associated with several risk factors but is most frequently seen as a rare consequence of an acute pulmonary embolism. Surgical pulmonary thromboendarterectomy (PTE) is potentially curative for CTEPH with the best outcomes seen for the treatment of primarily proximal, accessible lobar or segmental disease. For surgically inoperable patients, percutaneous balloon pulmonary angioplasty (BPA) is feasible and has good short- to mid-term efficacy outcomes...
January 2018: Interventional cardiology clinics
https://www.readbyqxmd.com/read/29155375/armi-tackles-regenerative-medicine-a-new-initiative-is-bringing-industrial-scale-engineering-approaches-to-the-biomedical-world
#10
David L Chandler
Pulmonary arterial hypertension is a rare and potentially life-threatening disorder. But when prominent entrepreneur Martine Rothblatt (Figure 1), founder of Sirius radio, learned in the 1990s that her daughter had been diagnosed with this little-known condition and given only three months to live, she refused to accept that grim prognosis. Instead, Rothblatt transformed her life.
November 2017: IEEE Pulse
https://www.readbyqxmd.com/read/29154434/right-ventricular-involvement-in-cardiac-sarcoidosis-demonstrated-with-cardiac-magnetic-resonance
#11
Jan-Peter Smedema, Robert-Jan van Geuns, Gillian Ainslie, Joris Ector, Hein Heidbuchel, Harry J G M Crijns
AIMS: Cardiac involvement in sarcoidosis is reported in up to 30% of patients. Left ventricular involvement demonstrated by contrast-enhanced cardiac magnetic resonance has been well validated. We sought to determine the prevalence and distribution of right ventricular late gadolinium enhancement in patients diagnosed with pulmonary sarcoidosis. METHODS AND RESULTS: We prospectively evaluated 87 patients diagnosed with pulmonary sarcoidosis with contrast-enhanced cardiac magnetic resonance for right ventricular involvement...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29154426/microvascular-dysfunction-and-cardiac-fibrosis-in-heart-failure-with-preserved-ejection-fraction-a-case-report
#12
Nikhil Narang, Diego Medvedofsky, Kathryn Dryer, Sanjiv J Shah, Charles J Davidson, Amit R Patel, John E A Blair
We report the case of a 55-year-old woman with heart failure with preserved ejection fraction (HFpEF), who presented with hypertensive urgency and pulmonary oedema. The patient was medically optimized and underwent cardiac catheterization revealing pulmonary hypertension, elevated pulmonary capillary wedge pressure, normal cardiac index, and non-obstructive coronary disease. Invasive evaluation of coronary flow revealed blunted coronary flow reserve and increased index of microvascular resistance. Cardiac magnetic resonance imaging demonstrated reduced global myocardial perfusion and diffuse interstitial fibrosis...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29153668/outcomes-and-mortality-in-parturient-and-non-parturient-patients-with-peripartum-cardiomyopathy-a-national-readmission-database-study
#13
Nisha Chhabra, Atul Gupta, Rachna Chibber, Mohammed Minhaj, Jennifer Hofer, Ariel Mueller, Avery Tung, Michael O'Connor, Barbara Scavone, Sarosh Rana, Sajid Shahul
BACKGROUND: Peripartum cardiomyopathy (PPCM) affects young females and mortality occurs after the peripartum period. Hospital readmissions for patients discharged with PPCM are poorly understood. The aim of this study was to evaluate differences in readmission rates, risk factors, and mortality in women with PPCM. METHODS: We conducted a retrospective cohort analysis using the Healthcare Cost and Utilization Project 2013 National Readmissions Database. From the database, we selected patients with PPCM to include patients discharged between January and November 2013...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29153390/current-trends-and-future-perspectives-in-the-treatment-of-pulmonary-hypertension-who-group-ii-v
#14
Sukhdeep Bhogal, Debabrata Mukherjee, Subhash Banerjee, Akm Monwarul Islam, Ramesh Daggubati, Timir K Paul
Pulmonary hypertension continues to be a life-threatening illness with debilitating physical and emotional consequences affecting around 1% of global population. The progression of this devastating disease is characterized by increase in pulmonary vascular resistance resulting in elevated pulmonary pressure, eventually leading to right heart failure and death. Better understanding of pathophysiology has led to substantial improvements in terms of availability of treatment options. The purpose of this review is to summarize the currently available treatment options along with pertinent trials and possible future therapies of pulmonary hypertension group II-V...
October 31, 2017: Current Problems in Cardiology
https://www.readbyqxmd.com/read/29151496/cost-effectiveness-analysis-of-cardiovascular-disease-treatment-in-japan
#15
Satoshi Kodera, Arihiro Kiyosue, Jiro Ando, Hiroshi Akazawa, Hiroyuki Morita, Masafumi Watanabe, Issei Komuro
The quality-adjusted life year (QALY) and incremental cost-effectiveness ratio (ICER) are important concepts in cost-effectiveness analysis, which is becoming increasingly important in Japan. QALY is used to estimate quality of life (QOL) and life years, and can be used to compare the efficacies of cancer and cardiovascular treatments. ICER is defined as the difference in cost between treatments divided by the difference in their effects, with a smaller ICER indicating better cost-effectiveness. Here, we present a review of cost-effectiveness analyses in Japan as well other countries...
November 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29151490/ppar%C3%AE-alleviates-right-ventricular-failure-secondary-to-pulmonary-arterial-hypertension-in-rats
#16
Ying Xu, Qin Gu, Ning Liu, Yan Yan, Xilan Yang, Yingying Hao, Chen Qu
Pulmonary arterial hypertension (PAH) is characterized by pulmonary vascular remodeling leading to right ventricular hypertrophy (RVH) and failure. Peroxisome proliferator-activated receptor γ (PPARγ), a member of nuclear receptors, has been proved to ameliorate PAH. However, its effect on PAH-induced right ventricular failure (RVF) remains unknown. Therefore, we investigated the therapeutic potential of PPARγ in preventing monocrotaline (MCT) -induced RV dysfunction. The PAH model was induced by MCT administration...
November 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29151278/tetrahydrobiopterin-bh4-targeting-endothelial-nitric-oxide-synthase-as-a-potential-therapy-for-pulmonary-hypertension
#17
Bahaa N Francis, Maram Salameh, Rola Khamisy-Farah, Raymond Farah
PURPOSE: Pulmonary Hypertension (PH) is complex disease which is associated with endothelial and cardiac dysfunction. Tetrahydrobiopterin (BH4 ) regulates endothelial nitric oxide synthase (eNOS) to produce nitric oxide rather than superoxide which maintains normal endothelial and cardiac function. This study explores the therapeutic potential of BH4 in experimental PH. METHODS: Monocrotaline-induced PH in rats and Hph-1 deficiency in mice were used for animal experiments...
November 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29150946/lncrna-tcons_00034812-in-cell-proliferation-and-apoptosis-of-pulmonary-artery-smooth-muscle-cells-and-its-mechanism
#18
Yun Liu, Zengxian Sun, Jinquan Zhu, Bingxin Xiao, Jie Dong, Xiaomin Li
Long noncoding RNAs (lncRNAs) have been discovered to be playing important role in various biological processes. However, the contribution of lncRNAs to pulmonary artery hypertension (PAH) remains largely unknown. Pulmonary vascular remodeling is an important pathological feature of PAH, leading to increased vascular resistance and reduced compliance. Here, we investigated the biological role of lncRNAs in PAH. Differences in the lncRNAs and mRNAs between hypoxia PAH rats and normoxia rats were screened using microarray analysis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150159/diagnostic-performance-of-pulmonary-capacitance-at-rest-and-during-exercise-in-idiopathic-pulmonary-arterial-hypertension
#19
Pankaj Jain, Sriram Rao, Peter Macdonald, Eugene Kotlyar, Andrew Jabbour, Christopher Hayward, Anne Keogh
BACKGROUND: Reliable markers of early disease are needed in pulmonary arterial hypertension (PAH). As measures of the contribution of abnormal vascular compliance to overall vascular resistance, resting and exercise pulmonary capacitance-defined as the stroke volume divided by the change in pulmonary pulse pressure-may be sensitive markers of early disease. METHODS: We examined all patients in our pulmonary hypertension database with idiopathic PAH, who had undergone rest and exercise right heart catheterisation in one sitting...
November 8, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29150155/the-association-of-functional-capacity-with-right-atrial-deformation-in-patients-with-pulmonary-arterial-hypertension-a-study-with-two-dimensional-speckle-tracking
#20
Weiwei Liu, Yueheng Wang, Jinling Zhou, Hui Bai, Feng Wang, Ju Wang
BACKGROUND: The purpose of this study was to assess right atrial (RA) myocardial mechanics in pulmonary hypertension (PH) patients using two-dimensional speckle tracking (2D-STE), and define the relationship between RA function and exercise capacity in PH patients. METHODS: Thirty-eight consecutive PH patients were studied and compared with a control group of 25 healthy volunteers. Peak atrial longitudinal strain (PALS), RA strain rate were measured in all subjects...
April 13, 2017: Heart, Lung & Circulation
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