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Pulmonary artery hypertension

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https://www.readbyqxmd.com/read/29140133/ite-inhibits-growth-of-human-pulmonary-artery-endothelial-cells
#1
Ling-Pin Pang, Yan Li, Qing-Yun Zou, Chi Zhou, Wei Lei, Jing Zheng, Shi-An Huang
AIM: Pulmonary arterial hypertension (PAH), a deadly disorder is associated with excessive growth of human pulmonary artery endothelial (HPAECs) and smooth muscle (HPASMCs) cells. Current therapies primarily aim at promoting vasodilation, which only ameliorates clinical symptoms without a cure. 2-(1'H-indole-3'-carbonyl)-thiazole-4-carboxylic acid methyl ester (ITE) is an endogenous aryl hydrocarbon receptor (AhR) ligand, and mediates many cellular function including cell growth. However, the roles of ITE in human lung endothelial cells remain elusive...
October 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29137886/diesel-exhaust-inhalation-exposure-induces-pulmonary-arterial-hypertension-in-mice
#2
Jing Liu, Xiaoqing Ye, Dapeng Ji, Xiaofei Zhou, Cong Qiu, Weiping Liu, Luyang Yu
Diesel exhaust (DE) is one of the main sources of urban air pollution. An increasing number of evidence showed the association of air pollution with cardiovascular diseases. Pulmonary arterial hypertension (PAH) is one of the most disastrous vascular diseases, which results in right ventricular failure and death. However, the relationship of DE inhalation exposure with PAH is still unknown. In this study, male adult mice were exposed by inhalation to filtered ambient air (negative control), 10% O2 hypoxia (PAH-phenotype positive control), 350 μg/m(3) particulate matter whole DE, or the combination of DE and hypoxic condition...
November 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29137066/a-coronary-artery-fistula-having-connection-between-2-coronary-arteries-and-the-left-ventricle-a-case-report
#3
Chang-Yeon Kim, Ji Yong Choi, Kee Sik Kim
RATIONALE: Cases of coronary artery fistula having a connection with the cardiac cavity are rare. Here, we report a case in which 2 coronary arteries empty into the left ventricular cavity together. PATIENT CONCERNS: A 63-year-old woman who was diagnosed as having hypertension 20 years prior presented with dyspnea. DIAGNOSES: The coronary angiography revealed coronary artery fistula. INTERVENTIONS: Chest X-ray showed pulmonary edema...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136712/-long-term-outcome-and-prognostic-factors-in-pregnant-women-with-pulmonary-arterial-hypertension-associated-with-congenital-heart-disease
#4
Q T Ou, J K Lu, J Zhang, Y Chen, Q Li, J L Zhang
Objective: To investigate the perinatal outcome, risk factors and long-term outcome of pregnancy complicated with pulmonary arterial hypertension(PAH) and congenital heart diseases (CHD). Methods: Clinical data of 110 pregnant women who were diagnosed as PAH-CHD were retrospectively analyzed in the Department of Obstetrics and Gynecology and Surgical Intensive Care Unit at Beijing Anzhen Hospital from 2004 to 2013. The survival and treatment status were followed up. Results: 110 subjects consisted of 11 mild PAH, 33 moderate and 66 severe ones...
November 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29135645/phosphodiesterase-type-5-inhibitors-sport-and-doping
#5
Luigi Di Luigi, Massimiliano Sansone, Andrea Sansone, Roberta Ceci, Guglielmo Duranti, Paolo Borrione, Clara Crescioli, Paolo Sgrò, Stefania Sabatini
Phosphodiesterase type 5 inhibitors (PDE5i) (e.g., sildenafil, tadalafil, vardenafil, and avanafil) are drugs commonly used to treat erectile dysfunction, pulmonary arterial hypertension, and benign prostatic hyperplasia. PDE5i are not prohibited by the World Anti-Doping Agency (WADA) but are alleged to be frequently misused by healthy athletes to improve sporting performance. In vitro and in vivo studies have reported various effects of PDE5i on cardiovascular, muscular, metabolic, and neuroendocrine systems and the potential, therefore, to enhance performance of healthy athletes during training and competition...
November 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29135526/case-report-of-an-awake-craniotomy-in-a-patient-with-eisenmenger-syndrome
#6
Boris D Heifets, Erin Crawford, Ethan Jackson, Jessica Brodt, Richard A Jaffe, Mark A Burbridge
We present a detailed report of an awake craniotomy for recurrent third ventricular colloid cyst in a patient with severe pulmonary arterial hypertension in the setting of Eisenmenger syndrome, performed 6 weeks after we managed the same patient for a more conservative procedure. This patient has a high risk of perioperative mortality and may be particularly susceptible to perioperative hemodynamic changes or fluid shifts. The risks of general anesthesia induction and emergence must be balanced against the risks inherent in an awake craniotomy on a per case basis...
November 9, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/29135479/use-of-remote-pulmonary-artery-pressure-monitoring-cardiomems-system-in-total-artificial-heart-to-assess-pulmonary-hemodynamics-for-heart-transplantation
#7
Salman Gohar, Ziad Taimeh, Jeff Morgan, O H Frazier, Francisco Arabia, Andrew Civitello, Ajith Nair
The temporary total artificial heart (TAH-t) has been valuable as a bridge to transplantation in patients with biventricular failure. However, the challenges of accurately assessing pulmonary vascular resistance after TAH-t implantation can preclude these patients from heart transplantation, especially those with pre-existing pulmonary hypertension. The CardioMEMS Heart Failure System (St. Jude's Medical, Little Canada, MN) comprises a wireless pressure sensor that is implanted percutaneously in the pulmonary artery and transmits real-time measurements of pulmonary artery pressures...
November 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29135402/-schistosomiasis-and-pulmonary-hypertension
#8
Nazan Şen
Schistosomiasis is one of the most prevelant parazitic diseases in the world. It is endemic in more than 70 countries, and more than 200 million people worldwide are infected with Schistosoma. Pulmonary hypertension (PHT) is one of the chronic complications of schistosomiasis. The exact pathogenesis of schistosomiasis-associated pulmonary hypertension (S-PHT) remains unclear, although several mechanisms such as parazitic arterial embolisation, pulmonary arteriopathy, and portopulmonary hypertension have been suggested...
September 2017: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/29135152/-masks-of-urogenital-tuberculosis-as-the-cause-of-diagnostic-errors
#9
D P Kholtobin, E K Kulchavenya
Urogenital tuberculosis does not have pathognomonic symptoms, so diagnostic errors are quite common. This systematic review of literature was conducted to identify the causes and estimate the incidence of erroneous diagnoses. We critically evaluated some articles in which the authors describe observations of urogenital tuberculosis as rare and unusual because they never encountered this disease, but in fact that were typical manifestations of genitourinary tuberculosis. The authors analyzed and illustrated the features of urinary tuberculosis in patients with pulmonary tuberculosis, differential diagnosis of urogenital tuberculosis and kidney cancer and male genitourinary organs, described errors in the diagnosis of urethral, testicular, penile, prostatic and epididymal tuberculosis...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29133530/human-endogenous-retrovirus-k-and-pulmonary-arterial-hypertension-a-new-take-on-a-retro-idea
#10
EDITORIAL
Miranda K Culley, Stephen Y Chan
No abstract text is available yet for this article.
November 14, 2017: Circulation
https://www.readbyqxmd.com/read/29133079/baicalein-attenuates-monocrotaline-induced-pulmonary-arterial-hypertension-by-inhibiting-vascular-remodeling-in-rats
#11
Ruizan Shi, Zehui Wei, Diying Zhu, Naijie Fu, Wang Chang, Sha Yin, Yueqin Liang, Jianfeng Xing, Xuening Wang, Yan Wang
BACKGROUND: Pulmonary arterial hypertension (PAH) is a devastating cardiopulmonary disorder characterized by elevated pulmonary arterial pressure (PAP) and right ventricular hypertrophy (RVH) driven by progressive vascular remodeling. Reversing adverse vascular remodeling is an important concept in the treatment of PAH. Endothelial injury, inflammation, and oxidative stress are three main contributors to pulmonary vascular remodeling. Baicalein is a natural flavonoid that has been shown to possess anti-proliferative, anti-inflammatory, anti-oxidative, and cardioprotective properties...
November 10, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29132217/update-on-pulmonary-arterial-hypertension-research-proceedings-from-a-meeting-of-experts
#12
Vallerie McLaughlin, Matthew Bacchetta, David Badesch, Raymond Benza, Charles Burger, Kelly Chin, Robert Frantz, Adaani Frost, Anna Hemnes, Nick H Kim, Erika B Rosenzweig, Lewis Rubin
While pulmonary arterial hypertension (PAH) remains a progressive, symptomatic condition characterized by increased pulmonary vascular resistance, ultimately leading to right heart failure, great strides have been made in its understanding and treatment over the past two decades. Continued research in preclinical, clinical, and health economic areas of research, in addition to registry analyses and technology advances, is critical for understanding the pathophysiology of the disease and devising the best ways to monitor and manage patients...
November 13, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29128622/efficacy-and-tolerability-of-pharmacological-interventions-for-pulmonary-arterial-hypertension-a-network-meta-analysis
#13
Hongjing Lin, Mupeng Wang, Ying Yu, Zeyu Qin, Xin Zhong, Jiahui Ma, Fangbo Zhao, Xueli Zhang
PURPOSE: This network meta-analysis (NMA) is designed to compare the efficacy and tolerability of various therapies and combinations for pulmonary arterial hypertension (PAH). METHOD: We conducted a systematic search in databases PubMed, Embase, and Cochrane Library. Treatment efficacy and tolerability were compared by synthesizing direct and indirect evidence. The surface under the curve ranking area was utilized to rank multiple interventions. RESULT: A total of 43 randomized clinical trials were included in our NMA...
November 8, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29128026/hepatopulmonary-syndrome-and-portopulmonary-hypertension-implications-for-liver-transplantation
#14
REVIEW
Shaz Iqbal, Kerri Akaya Smith, Vandana Khungar
Hepatopulmonary syndrome (HPS) and portopulmonary hypertension (PoPH) represent serious pulmonary complications of advanced liver diseases. Orthotopic liver transplantation (OLT) is capable of completely resolving the underlying abnormalities associated with HPS. On the other hand, post-OLT response in patients with PoPH is less predictable, although heavily influenced by pre-OLT mean pulmonary arterial pressure. It remains the case that the opportunity to reverse 2 potentially fatal organ dysfunctions in the liver and the lung make HPS and PoPH more than worthy for further clinical investigations...
December 2017: Clinics in Chest Medicine
https://www.readbyqxmd.com/read/29127864/assessment-of-the-quality-of-anticoagulation-management-in-patients-with-pulmonary-arterial-hypertension
#15
Tamara Roldan, Elena Villamañán, Juan J Rios, Aaron B Waxman
BACKGROUND: Studies assessing the quality of anticoagulation therapy in patients with pulmonary arterial hypertension (PAH) have not been conducted. OBJECTIVE: To assess the quality of anticoagulation management, the rate of anticoagulation-related complications in patients with PAH, and to identify risk factors for poor anticoagulation. METHODS: This observational, retrospective cohort study included patients with confirmed PAH taking a regimen of oral anticoagulants from two centers: Brigham and Women's Hospital in Boston, and Hospital Universitario La Paz in Madrid from January 2009 to August 2015...
November 2, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29127236/structural-and-functional-changes-of-the-pulmonary-vasculature-after-hypoxia-exposure-in-the-neonatal-period-a-new-swine-model-of-pulmonary-vascular-disease
#16
Daphne P M de Wijs-Meijler, Richard W B van Duin, Dirk J Duncker, Urs Scherrer, Claudio Sartori, Irwin K M Reiss, Daphne Merkus
Pulmonary vascular disease (PVD) represents an underestimated and increasing clinical burden in the neonatal period, but also later in life, when exercise-tolerance is decreased. Animal models performing long-term follow-up after a perinatal insult are lacking. This study aimed to develop and characterize a neonatal swine model with hypoxia-induced PVD, during long-term follow-up after re-exposure to normoxia, and to investigate the exercise response in this model. Piglets were exposed to a normoxic (N=10) or hypoxic environment (N=9) for four weeks...
November 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29126717/2013-acr-eular-systemic-sclerosis-classification-criteria-in-patients-with-associated-pulmonary-arterial-hypertension
#17
Beatriz E Joven, Pilar Escribano, Jose Luis Andreu, Estibaliz Loza, Carmen Jimenez, M Jesus Garcia de Yebenes, M Jose Ruiz-Cano, Loreto Carmona, Patricia E Carreira
OBJECTIVE: To analyze the performance of the 1980 ACR and new 2013 ACR/EULAR criteria for systemic sclerosis (SSc) in cutaneous SSc (lcSSc) patients, especially those affected by lcSSc and pulmonary arterial hypertension (PAH). METHODS: All patients with a clinical lcSSc diagnosis from a prospective observational SSc cohort were included. Sociodemographic and disease-related variables were collected, and PAH confirmed by right heart catheterization (RHC). Performance of the 2013 and 1980 SSc criteria was analyzed in terms of clinical diagnosis...
October 13, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29124030/large-atrial-septal-defect-closure-in-a-patient-with-severe-pulmonary-arterial-hypertension
#18
Supomo Supomo, Anggoro Budi Hartopo, Dyah Wulan Anggrahini, Handy Darmawan, Lucia Kris Dinarti
Patients with an atrial septal defect (ASD) and severe pulmonary arterial hypertension (PAH) are considered ineligible for defect closure surgery because of the risk of right ventricular decompensation and death after the operation. We report the case of a patient with large ASD and severe PAH who was able to undergo defect closure surgery successfully following long-term use of combined oral sildenafil and beraprost.
October 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29122916/task-1-kcnk3-channels-in-the-lung-from-cell-biology-to-clinical-implications
#19
REVIEW
Andrea Olschewski, Emma L Veale, Bence M Nagy, Chandran Nagaraj, Grazyna Kwapiszewska, Fabrice Antigny, Mélanie Lambert, Marc Humbert, Gábor Czirják, Péter Enyedi, Alistair Mathie
TWIK-related acid-sensitive potassium channel 1 (TASK-1 encoded by KCNK3) belongs to the family of two-pore domain potassium channels. This gene subfamily is constitutively active at physiological resting membrane potentials in excitable cells, including smooth muscle cells, and has been particularly linked to the human pulmonary circulation. TASK-1 channels are sensitive to a wide array of physiological and pharmacological mediators that affect their activity such as unsaturated fatty acids, extracellular pH, hypoxia, anaesthetics and intracellular signalling pathways...
November 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29122894/dyspnoea-in-lupus
#20
Jeremy Fleri Soler, Andrew Borg, Cecilia Mercieca
A 32-year-old woman suffering from systemic lupus erythematosus presented with a 6-week history of progressive dyspnoea and pleuritic chest pain. Examination was normal apart from reduced air entry at the lung bases.Arterial blood gases showed hypoxaemia and chest X-ray revealed raised hemidiaphragms without any pleural effusions. Lung function showed a restrictive pathology while high-resolution chest CT and CT pulmonary angiogram were negative. Echocardiography showed normal ventricular diameters and no pericardial effusion...
November 8, 2017: BMJ Case Reports
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