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https://www.readbyqxmd.com/read/28539568/clinical-and-hemodynamic-effects-of-endothelin-receptor-antagonists-in-patients-with-heart-failure
#1
Bo Xiong, Dan Nie, Yin Cao, Yanke Zou, Yuanqing Yao, Jie Tan, Jun Qian, Shunkang Rong, Chunbin Wang, Jing Huang
The clinical benefit of endothelin receptor antagonists (ERA) for the management of heart failure (HF) remains controversial. To examine this question, we performed a meta-analysis of randomized controlled trials (RCTs) to investigate the clinical and hemodynamic effects of ERA in HF patients.We searched the PubMed, Medline, Embase, and Cochrane Library from inception to March 20, 2016 to identify the pertinent studies. Risk ratio (RR) and weighted mean difference (WMD) were calculated using a fixed or random effect model...
May 23, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28527962/resolution-of-mitral-regurgitation-with-left-ventricular-assist-device-support
#2
Matthew Goodwin, Hassan W Nemeh, Jamil Borgi, Gaetano Paone, Jeffrey A Morgan
BACKGROUND: Cardiac valve disease is common in patients with end-stage heart failure undergoing left ventricular assist device implantation (LVAD). The aim of this study was to determine if preoperative mitral regurgitation (MR) affects outcomes and hemodynamics in patients after LVAD implantation. METHODS: From March 2006 through May 2015, 238 consecutive patients underwent LVAD implantation. Patient cohorts included less than moderate to severe MR (< moderate-severe, n = 195) and greater than or equal to moderate to severe MR (≥ moderate-severe, n = 43)...
May 17, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28515936/pulse-dose-steroids-in-severe-pulmonary-arterial-hypertension-secondary-to-systemic-lupus-erythematosus
#3
Cody Lee, Jean Elwing
OBJECTIVE: The pulmonary vascular targeted treatment for systemic lupus erythematosus-associated pulmonary arterial hypertension is similar to other connective tissue disease-associated pulmonary arterial hypertension. In addition, there also appears to be a role for immunosuppression in the overall management. However, the optimal immunosuppressive regimen and what patients will respond to treatments are currently not clearly elucidated given the lack of randomized controlled trials on the subject...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28515821/left-ventricular-velocity-of-propagation-a-useful-non-invasive-measurement-when-assessing-hemodynamic-alterations-in-pulmonary-arterial-hypertension
#4
Dagmar F Hernandez-Suarez, Denada Palm, Francisco Lopez-Menendez, Marcel Mesa Pabon, Angel Lopez-Candales
BACKGROUND: Left ventricular (LV) velocity of propagation (Vp) has been shown to be inversely related to the LV relaxation time constant. We sought to examine Vp from a group of chronic pulmonary hypertension (cPH) patients and compare these values to Vp obtained in normal individuals and patients with known LV diastolic dysfunction (LVDD). METHODS: Echo-Doppler data and Vp measurements were retrospectively collected from all patients. The studied population was divided into four groups...
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28506612/identification-of-pulmonary-hypertension-caused-by-left-heart-disease-world-health-organization-group-2-based-on-cardiac-chamber-volumes-derived-from-chest-ct
#5
Galit Aviram, Zach Rozenbaum, Tomer Ziv-Baran, Shlomo Berliner, Yan Topilsky, Dominik Fleischmann, Yon K Sung, Roham T Zamanian, Haiwei Henry Guo
BACKGROUND: Evaluations of patients with pulmonary hypertension (PH) commonly include chest computed tomography (CT). We hypothesized that cardiac chamber volumes calculated from the same CT scans can yield additional information to distinguish left heart disease-related PH (WHO Group 2) from other PH subtypes. METHODS: Patients with right heart catheterization (RHC)-confirmed PH and contrast-enhanced chest CT studies were enrolled in this retrospective multicenter study...
May 12, 2017: Chest
https://www.readbyqxmd.com/read/28500695/clinical-characteristics-and-survival-of-systemic-sclerosis-patients-with-pulmonary-hypertension-and-elevated-wedge-pressure-observations-from-the-pharos-cohort
#6
Matthew R Lammi, Lesley A Saketkoo, Jessica K Gordon, Paula Lauto, Karen Fagan, Virginia D Steen
BACKGROUND AND OBJECTIVE: Systemic sclerosis (SSc) is a complex autoimmune disease commonly associated with pulmonary hypertension (PH). When associated with elevated pulmonary artery wedge pressure (PAWP), pulmonary artery pressure (PAP) is either in-proportion (post-capillary PH) or higher than expected (combined PH) relative to the increased PAWP. METHODS: Patients from the PHAROS registry (a prospective observational cohort of SSc-PH patients) who had mean PAP ≥ 25 and PAWP > 15 on right heart catheterization were stratified based on diastolic pressure gradient (DPG)...
May 12, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28496152/rapid-self-driven-liquid-mixing-on-open-surface-microfluidic-platforms
#7
Jared M Morrissette, Pallab Sinha Mahapatra, Aritra Ghosh, Ranjan Ganguly, Constantine M Megaridis
Self-driven surface micromixers (SDSM) relying on patterned-wettability technology provide an elegant solution for low-cost, point-of-care (POC) devices and lab-on-a-chip (LOC) applications. We present a SDSM fabricated by strategically patterning three wettable wedge-shaped tracks onto a non-wettable, flat surface. This SDSM operates by harnessing the wettability contrast and the geometry of the patterns to promote mixing of small liquid volumes (µL droplets) through a combination of coalescence and Laplace pressure-driven flow...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28492790/effects-of-low-dose-recombinant-human-brain-natriuretic-peptide-on-anterior-myocardial-infarction-complicated-by-cardiogenic-shock
#8
Yesheng Pan, ZhiGang Lu, Jingyu Hang, Shixin Ma, Jian Ma, Meng Wei
INTRODUCTION: The mortality due to cardiogenic shock complicating acute myocardial infarction (AMI) is high even in patients with early revascularization. Infusion of low dose recombinant human brain natriuretic peptide (rhBNP) at the time of AMI is well tolerated and could improve cardiac function. OBJECTIVE: The objective of this study was to evaluate the hemodynamic effects of rhBNP in AMI patients revascularized by emergency percutaneous coronary intervention (PCI) who developed cardiogenic shock...
March 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28491184/feasibility-of-transfemoral-hepatic-vein-wedged-portal-venous-pressure-measurement-in-total-artificial-heart
#9
Ashwani Kumar Sharma, Jonathan Huang, Himabindu Vidula, Jeffrey Alexis, Juan M Lehoux
The development of technology and limitation of numerous ventricular assist devices has increased usage of the total artificial heart (TAH) for mechanical circulatory support. A primary important feature of TAH is that it is one of the few mechanical circulatory support devices that provides biventricular support. As the number of patients with TAH rises, spreading awareness about the device in the interventional radiology community is important.
June 2017: Radiology case reports
https://www.readbyqxmd.com/read/28483550/efficacy-and-safety-of-inter-atrial-shunt-devices-for-heart-failure-with-reduced-or-preserved-ejection-fraction-early-experiences
#10
Dasheng Lu, Jing Zhu, Bin Liao
BACKGROUND: Elevated left atrial (LA) pressure is thought to be the common final pathological way in decompensated heart failure (HF). We aimed to gather currently available clinical evidence to evaluate the feasibility of inter-atrial shunt devices in HF patients. METHODS: We searched PubMed and Cochrane Library databases through 23rd April 23, 2016. Data were extracted by two investigators independently. We pooled outcomes of interest in Revman 5.2 (The Cochrane Collaboration, Oxford, United Kingdom)...
April 6, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28482627/improvement-of-pulmonary-arterial-compliance-and-further-pulmonary-hemodynamic-effects-of-serelaxin-in%C3%A2-a%C3%A2-sheep-model
#11
René Schiffner, Juliane Reiche, Martin Schmidt, Christian Jung, Sebastian Walther, Andrey Irintchev, Sabine J Bischoff
BACKGROUND: The influence of the recombinant form of human relaxin-2 (serelaxin) on pulmonary hemodynamics under physiologic conditions have not been the subject of studies in an animal model up until now. METHODS: We therefore utilised the large animal model sheep, convenient in its similar cardiovascular physiology, to investigate said influence. All animals underwent right heart catheterization, a safe and reliable invasive procedure for the assessment of pulmonary hemodynamics, and then received either 30μg/kg serelaxin (n = 11) or saline (n = 13)...
May 2, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28469686/left-ventricular-mechanical-support-with-the-impella-during-extracorporeal-membrane-oxygenation
#12
Kasra Moazzami, Elena V Dolmatova, Thomas P Cocke, Elie Elmann, Pranay Vaidya, Arthur F Ng, Kumar Satya, Rajeev L Narayan
Background: Venoarterial extracorporeal membrane oxygenation (ECMO) provides systemic arterial support without directly unloading the left heart, which causes an elevated left ventricular (LV) pressure. The aim of the present study was to investigate the adjunctive application of the Impella device for LV unloading in patients during ECMO. Methods: This retrospective cohort study included patients who received Impella support in addition to venoarterial ECMO between April 2012 and December 2015. ECMO cannulation was performed peripherally or centrally, while the Impella device was surgically inserted into the femoral artery or the right axillary artery...
January 2017: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/28454679/a-pilot-study-comparing-custom-contoured-and-planar-support-surfaces-for-pressure-ulcer-risk-over-the-heels-for-night-time-postural-management-using-interface-pressure-mapping-and-discomfort-scores
#13
J Hosking
PURPOSE: Custom contouring techniques are effective for reducing pressure ulcer risk in wheelchair seating. These techniques may assist the management of pressure ulcer risk during sleep for night time postural management. OBJECTIVES: To investigate the effectiveness of custom contoured night time postural management components against planar support surfaces for pressure ulcer risk measures over the heels. METHOD: Supine posture was captured from five healthy participants using vacuum consolidation and 3-dimensional laser scanning...
April 21, 2017: Journal of Tissue Viability
https://www.readbyqxmd.com/read/28448324/intraoperative-use-of-the-ventrain-for-single-lung-ventilation-after-iatrogenic-trauma-to-the-left-main-bronchus-during-thoracoscopy-a-case-report
#14
Veronika M Evers, Rogier V Immink, Willem J P van Boven, Mark I van Berge Henegouwen, Markus W Hollmann, Denise P Veelo
In a patient undergoing thoracoscopic esophagectomy and concomitant wedge resection, an iatrogenic lesion in the left main bronchus was observed following deflation of the right lung. Because the bronchial cuff of the double-lumen tube was visible through the lesion, repair was only possible after deflation of the bulging cuff. Positive pressure ventilation would result in air leakage jeopardizing ventilation and oxygenation. This challenging situation was resolved using the Ventrain device to oxygenate the patient through a small-bore catheter placed through the lumen beyond the bronchial defect...
April 26, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28445855/speed-dependent-effects-of-laterally-wedged-insoles-on-gait-biomechanics-in-healthy-subjects
#15
Felix Kluge, Sebastian Krinner, Matthias Lochmann, Bjoern M Eskofier
Laterally wedged insoles have been shown to be effective for the reduction of the knee adduction moment and other biomechanical variables that are associated with the pathogenesis of knee osteoarthritis. However, inconclusive results such as adverse effects in individual subjects or even no group-wise wedge effects have been presented in different studies and it has been suggested to identify variables that potentially confound the wedge effect. The main objective of this study was the investigation of interaction effects of lateral wedges with walking speed, as different self-selected speeds have mainly been used in previous studies...
April 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28435882/geochemical-evidence-for-m%C3%A3-lange-melting-in-global-arcs
#16
Sune G Nielsen, Horst R Marschall
In subduction zones, sediments and hydrothermally altered oceanic crust, which together form part of the subducting slab, contribute to the chemical composition of lavas erupted at the surface to form volcanic arcs. Transport of this material from the slab to the overlying mantle wedge is thought to involve discreet melts and fluids that are released from various portions of the slab. We use a meta-analysis of geochemical data from eight globally representative arcs to show that melts and fluids from individual slab components cannot be responsible for the formation of arc lavas...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28435003/the-hemodynamic-effects-of-aortic-insufficiency-in-patients-supported-with-continuous-flow-left-ventricular-assist-devices
#17
Gabriel Sayer, Nitasha Sarswat, Gene H Kim, Sirtaz Adatya, Diego Medvedofsky, Daniel Rodgers, Eric Kruse, Takeyoshi Ota, Valluvan Jeevanandam, Roberto Lang, Nir Uriel
BACKGROUND: The impact of aortic insufficiency (AI) on the morbidity and mortality of left ventricular assist device (LVAD) patients remains controversial. This study's aim was to assess the hemodynamics of LVAD patients with at least mild AI, at baseline and in response to device speed changes. METHODS AND RESULTS: Asymptomatic LVAD patients were prospectively enrolled and underwent a hemodynamic and echocardiographic ramp study. Hemodynamics at rest and in response to device speed changes were compared between patients with at least mild AI at their baseline speed and patients without AI...
April 20, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28417295/drug-induced-pulmonary-arterial-hypertension-a-review
#18
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/28412431/3d-morphological-changes-in-lv-and-rv-during-lvad-ramp-studies
#19
Karima Addetia, Nir Uriel, Francesco Maffessanti, Gabriel Sayer, Sirtaz Adatya, Gene H Kim, Nitasha Sarswat, Savitri Fedson, Diego Medvedofsky, Eric Kruse, Keith Collins, Daniel Rodgers, Takayoshi Ota, Valluvan Jeevanandam, Victor Mor-Avi, Daniel Burkhoff, Roberto M Lang
OBJECTIVES: The purpose of this study was to investigate the differential impact of the 2 most commonly available left ventricular assist device (LVAD) types on the right (RV) and left (LV) ventricles using 3-dimensional (3D) echocardiography-based analysis of ventricular morphology. BACKGROUND: LVADs have emerged as common therapy for advanced heart failure. Recent data suggest that the heart responds differently to speed settings in the 2 main devices available (HeartMate II [HMII], St Jude Medical, Pleasanton, California, and HVAD, HeartWare International, Framingham, Massachusetts)...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28410638/utility-of-objective-chest-tube-management-after-pulmonary-resection-using-a-digital-drainage-system
#20
Kazuya Takamochi, Kota Imashimizu, Mariko Fukui, Tatsuo Maeyashiki, Mikiko Suzuki, Takuya Ueda, Hironori Matsuzawa, Shunki Hirayama, Takeshi Matsunaga, Shiaki Oh, Kenji Suzuki
BACKGROUND: We sought to evaluate the clinical utility of chest tube management after pulmonary resection based on objective digital monitoring of pleural pressure and digital surveillance for air leaks. METHODS: We prospectively recorded the perioperative data of 308 patients who underwent pulmonary resection between December 2013 and January 2016. We used information from a digital monitoring thoracic drainage system to measure peak air leakage during the first 24 hours after the operation, patterns of air leakage over the first 72 hours, and patterns of pleural pressure changes until the chest tubes were removed...
April 12, 2017: Annals of Thoracic Surgery
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