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Pulmonary hypertension AND exercise

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https://www.readbyqxmd.com/read/29928642/pathophysiology-and-diagnosis-of-pulmonary-hypertension-due-to-left-heart-disease
#1
REVIEW
Athanasios Charalampopoulos, Robert Lewis, Peter Hickey, Charlotte Durrington, Charlie Elliot, Robin Condliffe, Ian Sabroe, David G Kiely
Pulmonary hypertension due to left heart disease (PH-LHD) is the most common type of pulmonary hypertension, although an accurate prevalence is challenging. PH-LHD includes PH due to systolic or diastolic left ventricular dysfunction, mitral or aortic valve disease and congenital left heart disease. In recent years a new and distinct phenotype of "combined post-capillary and pre-capillary PH," based on diastolic pulmonary gradient and pulmonary vascular resistance, has been recognized. The roles of right ventricular dysfunction and pulmonary vascular compliance in PH-LHD have also been elucidated recently and they appear to have significant clinical implications...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29928523/muscle-atrophy-in-chronic-obstructive-pulmonary-disease-molecular-basis-and-potential-therapeutic-targets
#2
REVIEW
Esther Barreiro, Ariel Jaitovich
Patients with chronic obstructive pulmonary disease (COPD) experience several systemic manifestations such skeletal muscle dysfunction with and without muscle mass loss. Moreover, frequent comorbidities such as nutritional abnormalities, heart failure, and pulmonary hypertension, which are frequently associated with COPD may further contribute to skeletal muscle mass loss and dysfunction. Muscle dysfunction impairs the patients' exercise capacity and quality of life as daily life activities may be hampered by this problem...
May 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29916285/express-treatment-of-exercise-pulmonary-hypertension-improves-pulmonary-vascular-distensibility
#3
William D Wallace, Mehdi Nouraie, Stephen Y Chan, Michael George Risbano
No abstract text is available yet for this article.
January 1, 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29915733/prevalence-of-pulmonary-artery-hypertension-in-patients-of-chronic-obstructive-pulmonary-disease-and-its-correlation-with-stages-of-chronic-obstructive-pulmonary-disease-exercising-capacity-and-quality-of-life
#4
Kamlesh Kumar Gupta, Bidyut Roy, Shyam Chand Chaudhary, Arvind Mishra, M L Patel, Jitendra Singh, Vivek Kumar
Background: Pulmonary arterial hypertension (PAH) is a complication of chronic obstructive pulmonary disease (COPD) in advance stages, and its presence indicates poor prognosis. Aims and Objective: The present study was design to know the prevalence of PAH in patients with COPD and its correlation with stages of COPD, exercising capacity, and quality of life. Materials and Methods: It is a cross-sectional prevalence study over a period of 1 year from August 2015 to July 2016...
January 2018: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29909553/increasing-quality-of-life-in-pulmonary-arterial-hypertension-is-there-a-role-for-nutrition
#5
REVIEW
Paulien Vinke, Suzanne M Jansen, Renger F Witkamp, Klaske van Norren
Pulmonary arterial hypertension (PAH) is a progressive disease primarily affecting the pulmonary vasculature and heart. PAH patients suffer from exercise intolerance and fatigue, negatively affecting their quality of life. This review summarizes current insights in the pathophysiological mechanisms underlying PAH. It zooms in on the potential involvement of nutritional status and micronutrient deficiencies on PAH exercise intolerance and fatigue, also summarizing the potential benefits of exercise and nutritional interventions...
June 16, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29898864/modern-treatment-to-reduce-pulmonary-arterial-pressure-in-pulmonary-arterial-hypertension
#6
REVIEW
Satoshi Akagi, Hiromi Matsubara, Kazufumi Nakamura, Hiroshi Ito
Treatment goals in pulmonary arterial hypertension (PAH) include improved quality of life and exercise capacity as well as improved life prognosis. In our experience, only remarkable reductions in pulmonary arterial pressure (PAP) improve long-term survival. Lowering PAP could contribute to reverse remodeling by reducing hemodynamic stress. Proper and prompt use of PAH-specific drugs lowers PAP in patients with PAH. Upfront combination therapy with different PAH-specific drugs and quickly establishing high-dose epoprostenol lowers PAP sufficiently to improve prognosis in patients with PAH...
June 10, 2018: Journal of Cardiology
https://www.readbyqxmd.com/read/29886624/-establishment-and-evaluation-of-a-new-method-for-determining-hemodynamics-of-pulmonary-hypertension-rats
#7
Q Y Zheng, M D Kuang, Y Li, X T Wu, J Y Huang, C T Zhang, H W Liu, W J Lu, J Wang, Y Q Chen
Objective: By evaluating the hemodynamic parameters such as cardiac output (CO), right ventricular pressure (RVP), pulmonary artery pressure (PAP) and total pulmonary resistance index (TPRI) in pulmonary hypertension rat model, we established a more comprehensive hemodynamic evaluation system, which objectively evaluated the severity of disease and exercise tolerance in rats with pulmonary hypertension. Methods: SD rats were randomly divided into a control group and a model group with 5 rats in each group. The model group was intraperitoneally injected with SU5416 (20 mg/kg) and placed in an oxygen chamber at a 10% oxygen concentration for 21 days and then placed in a normoxic environment for 14 days...
June 12, 2018: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29880507/abnormal-ventilation-perfusion-scan-is-associated-with-pulmonary-hypertension-in-sickle-cell-adults
#8
Alem Mehari, Norris Igbineweka, Darlene Allen, Jim Nichols, Swee Lay Thein, Nargues A Weir
Pulmonary hypertension (PH) in adults with sickle cell disease (SCD) is associated with early mortality. Chronic thromboembolic pulmonary hypertension (CTEPH) is an important complication and contributor to PH in SCD, but likely underappreciated. Guidelines recommend ventilation-perfusion scintigraphy (V/Q) as imaging modality of choice to exclude CTEPH. Data on V/Q are limited in SCD. Objective: To compare the performance of V/Q with computed tomography pulmonary angiography (CTPA) and to report clinical outcomes associated with abnormal V/Q...
June 7, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29877312/surgery-for-partial-atrioventricular-septal-defect-with-pulmonary-hypertension-in-an-adult-dog
#9
Seijirow Goya, Nobuyuki Kanno, Kenji Teshima, Takanori Anndo, Takahiro Fujioka
A 4-year-old, 5.9-kg female Japanese Spitz presented with syncope and exercise intolerance. Echocardiography revealed an ostium primum atrial septal defect (ASD), a cleft mitral valve, mitral valve regurgitation (MR), and tricuspid regurgitation (TR) (velocity: 3.6 m/sec, pressure gradient: 52 mmHg), leading to a diagnosis of partial atrioventricular septal defect (AVSD) with moderate pulmonary hypertension (PH). Open-heart surgery using cardiopulmonary bypass was performed through right atriotomy. The cleft of the mitral valve was sutured with polypropylene and the AVSD was closed using an autologous pericardial patch fixed with glutaraldehyde...
June 6, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29799315/skeletal-muscle-mitochondrial-oxidative-phosphorylation-function-in-idiopathic-pulmonary-arterial-hypertension-in-vivo-and-in-vitro-study
#10
Sasiharan Sithamparanathan, Mariana C Rocha, Jehill D Parikh, Karolina A Rygiel, Gavin Falkous, John P Grady, Kieren G Hollingsworth, Michael I Trenell, Robert W Taylor, Doug M Turnbull, Gráinne S Gorman, Paul A Corris
Mitochondrial dysfunction within the pulmonary vessels has been shown to contribute to the pathology of idiopathic pulmonary arterial hypertension (IPAH). We investigated the hypothesis of whether impaired exercise capacity observed in IPAH patients is in part due to primary mitochondrial oxidative phosphorylation (OXPHOS) dysfunction in skeletal muscle. This could lead to potentially new avenues of treatment beyond targeting the pulmonary vessels. Nine clinically stable participants with IPAH underwent cardiopulmonary exercise testing, in vivo and in vitro assessment of mitochondrial function by 31 P-magnetic resonance spectroscopy (31 P-MRS) and laboratory muscle biopsy analysis...
April 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29799120/transition-from-post-capillary-pulmonary-hypertension-to-combined-pre-and-post-capillary-pulmonary-hypertension-in-swine-a-key-role-for-endothelin
#11
Richard W B van Duin, Kelly Stam, Zongye Cai, André Uitterdijk, Ana Garcia-Alvarez, Borja Ibanez, Ah Jan Danser, Irwin K M Reiss, Dirk J Duncker, Daphne Merkus
Passive, isolated post-capillary pulmonary hypertension (IpcPH) secondary to left heart disease may progress to combined pre- and post-capillary or 'active' PH (CpcPH) characterized by chronic pulmonary vascular constriction and remodelling. The mechanisms underlying this 'activation' of passive PH remain incompletely understood. Here we investigate the role of the vasoconstrictor endothelin-1 (ET) in the progression from IpcPH to CpcPH in a swine model for post-capillary PH. Swine underwent pulmonary vein banding (PVB n = 7) or sham-surgery (SH n = 6) and were chronically instrumented four weeks later...
May 25, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29798690/exercise-based-evaluations-and-interventions-for-pulmonary-hypertension-with-connective-tissue-disorders
#12
Abraham Samuel Babu, Norman R Morris, Ross Arena, Jonathan Myers
Exercise intolerance is a common and often significant limitation in pulmonary arterial hypertension (PAH). This intolerance greatly affects the quality of life and function of the individual with PAH, irrespective of its etiology. In PAH associated with connective tissue disorders (PAH-CTD), exercise intolerance is further amplified by the presence of co-existing musculoskeletal manifestations of CTD. The evaluation of exercise capacity and prescription for exercise training therefore becomes a challenge to the clinician...
May 25, 2018: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29792339/pulmonary-hypertension-in-congenital-heart-disease
#13
Emma Pascall, Robert Mr Tulloh
Pulmonary hypertension is defined as a mean pulmonary arterial pressure ≥25 mmHg. We focus on its relevance in congenital heart disease, reviewing pathophysiology, diagnosis and management. Pulmonary hypertension is a relatively common complication of congenital heart disease, with adult prevalence between 5 and 10%. A multifactorial cause is recognized, relating to the size and nature of cardiac defect as well as environmental and genetic factors. More complex disease is increasingly recognized rather than pure Eisenmenger complex...
May 24, 2018: Future Cardiology
https://www.readbyqxmd.com/read/29790948/cardioprotection-induced-by-activation-of-gper-in-ovariectomized-rats-with-pulmonary-hypertension
#14
Allan K N Alencar, Guilherme C Montes, Daniele G Costa, Luiza V P Mendes, Ananssa M S Silva, Sabrina T Martinez, Margarete M Trachez, Valéria do M N Cunha, Tadeu L Montagnoli, Aline G M Fraga, Hao Wang, Leanne Groban, Carlos A M Fraga, Roberto T Sudo, Gisele Zapata-Sudo
Pulmonary hypertension (PH) is a disease of women (female-to-male ratio 4:1), and is associated with cardiac and skeletal muscle dysfunction. Herein, the activation of a new estrogen receptor (GPER) by the agonist G1 was evaluated in oophorectomized rats with monocrotaline (MCT)-induced PH. Depletion of estrogen was induced by bilateral oophorectomy (OVX) in Wistar rats. Experimental groups included SHAM or OVX rats that received a single intraperitoneal injection of MCT (60 mg/kg) for PH induction. Animals received s...
May 21, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29777409/hemodynamic-heterogeneity-of-connective-tissue-disease-patients-with-borderline-mean-pulmonary-artery-pressure-and-its-distinctive-characters-from-those-with-normal-pulmonary-artery-pressure-a-retrospective-study
#15
Yusa Asari, Yoshioki Yamasaki, Kosei Tsuchida, Kengo Suzuki, Yoshihiro J Akashi, Takahiro Okazaki, Shoichi Ozaki, Hidehiro Yamada, Kimito Kawahata
To clarify whether patients with connective tissue disease (CTD)-associated borderline mean pulmonary artery pressure (mPAP) have distinctive hemodynamic characteristics from those with normal mPAP and whether pathogenesis is as heterogeneous as manifest pulmonary hypertension (PH). Seventy-five CTD patients who underwent right heart catheterization (RHC) from 2008 through 2016 were retrospectively analyzed. We compared between-group differences in clinical and hemodynamic findings: normal mPAP (n = 35), borderline mPAP (n = 15), and PH (n = 25)...
May 18, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29775415/exercise-cardiac-mri-unmasks-right-ventricular-dysfunction-in-acute-hypoxia-and-chronic-pulmonary-arterial-hypertension
#16
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/29761224/cardiopulmonary-factors-affecting-6-min-walk-distance-in-patients-with-idiopathic-inflammatory-myopathies
#17
Naoki Mugii, Fujiko Someya
Idiopathic inflammatory myopathies involve skeletal muscles and can be associated with interstitial lung disease and/or heart dysfunction, which may reduce exercise capacity. We aimed to clarify cardiopulmonary factors affecting the 6-min walk distance in patients who were able to walk without leg pain or fatigue. Twenty-three patients with inactive adult idiopathic inflammatory myopathies, and 18 age- and gender-matched healthy controls were evaluated for hemodynamic responses using noninvasive impedance cardiography during the 6-min walk test...
May 14, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29748074/-altitude-and-the-right-heart
#18
REVIEW
R Naeije
INTRODUCTION: Altitude is associated with a decrease in partial pressure of oxygen. Hypoxia induces pulmonary vasoconstriction with subsequent fixed increase in pulmonary artery pressure, and eventual right heart failure. CURRENT KNOWLEDGE: High altitude exposure is associated with an increase in pulmonary artery pressure that is proportional to initial vasoconstriction. Echocardiographic evaluations on a large number of subjects show that the altitude-induced increase in pulmonary pressure is generally modest and does not exceed the 25mmHg that are diagnostic of pulmonary hypertension...
May 7, 2018: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/29746142/pulmonary-vascular-involvement-in-copd-is-there-a-pulmonary-vascular-phenotype
#19
Gabor Kovacs, Alvar Agusti, Joan Albert Barberà, Bartolome Celli, Gerard Criner, Marc Humbert, Don D Sin, Norbert Voelkel, Horst Olschewski
Although often clinically unrecognized, the pulmonary circulation is frequently affected in patients with chronic obstructive pulmonary disease (COPD), and the presence of pulmonary vascular disease is associated with poor prognosis and frequent exacerbations. In most cases the presenting pulmonary hypertension (PH) is relatively mild, but in a subset of COPD patients, the presence of certain clinical features supports the existence of a "pulmonary vascular phenotype". Such a phenotype would be characterized by severe pre-capillary PH with strongly elevated pulmonary vascular resistance, moderate airflow limitation, severely decreased diffusion capacity for carbon monoxide, normo- or hypocapnia, circulatory exercise limitation and progressive right heart failure...
May 10, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29743909/improvement-of-physical-capacity-in-patients-undergoing-transcatheter-closure-of-atrial-septal-defects
#20
Paweł Prochownik, Tadeusz Przewłocki, Piotr Podolec, Piotr Wilkołek, Bartosz Sobień, Urszula Gancarczyk, Natalia Podolec, Monika Komar
Introduction: Atrial septal defect (ASD) is the most common congenital cardiac anomaly diagnosed in adults. It often remains asymptomatic until the fourth or fifth decade of life. Significant left-to-right interatrial shunting is associated with the risk of heart failure, pulmonary hypertension and atrial fibrillation. Percutaneous ASD closure is a recognized method of treatment. Aim: To evaluate the clinical outcomes and physical capacity in patients undergoing transcatheter closure of ostium secundum ASD...
2018: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
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