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Hemodynamic support

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https://www.readbyqxmd.com/read/29776563/chronic-thromboembolic-pulmonary-hypertension-reversal-of-pulmonary-hypertension-but-not-sleep-disordered-breathing-following-pulmonary-endarterectomy
#1
Maria Teresa La Rovere, Francesco Fanfulla, Anna Eugenia Taurino, Claudio Bruschi, Roberto Maestri, Elena Robbi, Rita Maestroni, Caterina Pronzato, Maurizio Pin, Andrea M D'Armini, Gian Domenico Pinna
BACKGROUND: It has been hypothesized that pre-capillary pulmonary hypertension (PH) may trigger sleep disordered breathing (SDB). In patients with chronic thromboembolic PH (CTEPH), pulmonary endarterectomy (PEA) is potentially effective to improve PH. We assessed the pre- and post-operative prevalence of SDB in CTEPH patients submitted to PEA and the relationship between SDB and clinical, pulmonary and hemodynamic factors. METHODS: Unattended cardiorespiratory recording was performed the night before and one month after elective PEA in 50 patients...
August 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29762934/rescue-tavi-for-aortic-regurgitation-after-left-ventricular-assist-device-implantation-following-preoperative-impella%C3%A2-support
#2
Florian E M Herrmann, Petra Wellmann, Vera von Dossow, Steffen Massberg, Christian Hagl, René Schramm, Maximilian Pichlmaier
A patient presented with a decompensated cardiomyopathy requiring invasive hemodynamic support with an Impella® heart pump. Extracorporeal life support (ECLS) became necessary during the further course and the patient was bridged to left ventricular assist device (LVAD) implantation. Postoperatively, the patient did not improve as expected due to new aortic regurgitation (AR) that was most likely caused by the previously placed Impella. A SAPIEN 3 transcatheter aortic valve was implanted as a bail-out strategy; an additional valve-in-valve rescue was required due to paravalvular regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29761298/lumbar-muscle-atrophy-caused-by-harness-replacement-in-a-chronic-calf-model-of-total-artificial-heart-implantation
#3
Jamshid H Karimov, Kimberly A Such, Raymond Dessoffy, Kiyotaka Fukamachi
The postoperative care of animals implanted with mechanical circulatory support devices is complex. The standard of care requires continuous monitoring of hemodynamic parameters post implant, wound care, and maintenance of the animal's well-being, but also includes controlling the animal's biomechanics under conditions of continuous restraint and harnessing. In such studies, a harness provides secure fixation of the exteriorized device driveline and pressure lines and aids animal handling (lifting, position adjustment, and assistance with standing up)...
May 14, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29759946/assessment-of-structural-and-hemodynamic-performance-of-vascular-stents-modelled-as-periodic-lattices
#4
Purnendu K M Prithipaul, Michael Kokkolaras, Damiano Pasini
This work considers vascular stents with tubular geometry assumed to follow a periodic arrangement of repeating unit cells. Structural and hemodynamic metrics are presented to assess alternative stent geometries, each defined by the topology of the unit cell. Structural metrics include foreshortening, elastic recoil and radial stiffness, whereas hemodynamic performance is described by a wall shear stress index quantifying the impact of in-stent restenosis. A representative volume element (RVE) modelling approach is used, and results are compared to those obtained from full simulations of entire stents...
May 11, 2018: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29759835/hemodynamic-support-in-ventricular-tachycardia-ablation-an-international-vt-ablation-center-collaborative-group-study
#5
Mohit K Turagam, Venkat Vuddanda, Donita Atkins, Pasquale Santangeli, David S Frankel, Roderick Tung, Marmar Vaseghi, William H Sauer, Wendy Tzou, Nilesh Mathuria, Shiro Nakahara, Timm M Dickfeld, T Jared Bunch, Peter Weiss, Luigi Di Biase, Venkat Tholakanahalli, Kairav Vakil, Usha B Tedrow, William G Stevenson, Paolo Della Bella, Kalyanam Shivkumar, Francis E Marchlinski, David J Callans, Andrea Natale, Madhu Reddy, Dhanunjaya Lakkireddy
OBJECTIVES: This study sought to evaluate the clinical outcomes of patients receiving hemodynamic support (HS) during ventricular tacchycardia (VT) ablation. BACKGROUND: There are limited real-world data evaluating its effect of HS in ablation outcomes. METHODS: An analysis of 1,655 patients from the International VT Ablation Center Collaborative group was performed. A total of 105 patients received HS with percutaneous ventricular assist device...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29756693/multi-parametric-functional-hemodynamic-optimization-improves-postsurgical-outcome-after-intermediate-risk-open-gastrointestinal-surgery-a-randomized-controlled-trial
#6
Pavel Szturz, Pavel Folwarczny, Roman Kula, Jan Neiser, Pavel Ševčík, Jan Benes
BACKGROUND: Perioperative goal directed therapy (pGDT) using flow monitoring has been associated with improved outcomes. However, its protocols are often based on stroke volume only: as a target for fluid loading, inotropic support and vasopresors (via mathematical coupling of systemic vascular resistance). In this trial, we have tested the multi- parametric pGDT protocol based on esophageal Doppler variables (corrected flow time, peak velocity) in intermediate-to-high risk patients undergoing gastrointestinal surgery...
May 11, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29754908/an-operational-definition-of-shats-systemic-hemodynamic-atherosclerotic-syndrome-role-of-arterial-stiffness-and-blood-pressure-variability-in-elderly-hypertensive-subjects
#7
Angelo Scuteri, Valentina Rovella, Danilo Alunni Fegatelli, Manfredi Tesauro, Marco Gabriele, Nicola Di Daniele
BACKGROUND: CV risk exponentially increases as the number of damaged organs increases The Systemic Hemodynamic Atherosclerotic Syndrome (SHATS) represents a novel conceptualization of the CV continuum focusing on simultaneous multi-organ alteration. This is the first study operationally defining SHATS and aimed at identifying its determinants. METHODS: Left Ventricular Hypertrophy (echocardiography), Common Carotid Artery plaque and increased thickness (ultrasound), and Chronic Kidney Disease (estimated Glomerular Filtration Rate) indexed selective target organ damage...
July 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29754660/predictors-of-intra-aortic-balloon-pump-hemodynamic-failure-in-non-acute-myocardial-infarction-cardiogenic-shock
#8
Steven Hsu, Swetha Kambhampati, Christopher M Sciortino, Stuart D Russell, Steven P Schulman
OBJECTIVES: To characterize patient profile and hemodynamic profile of those undergoing intra-aortic balloon pump (IABP) for cardiogenic shock and define predictors of hemodynamic failure of IABP support. BACKGROUND: Clinical characteristics of IABP support in cardiogenic shock not related to acute myocardial infarction (AMI) remain poorly characterized. METHODS: We retrospectively studied a cohort of 74 patients from 2010 to 2015 who underwent IABP insertion for cardiogenic shock complicating acute decompensated heart failure not due to AMI...
May 2018: American Heart Journal
https://www.readbyqxmd.com/read/29754648/the-cvad-registry-for-percutaneous-temporary-hemodynamic-support-a-prospective-registry-of-impella-mechanical-circulatory-support-use-in-high-risk-pci-cardiogenic-shock-and-decompensated-heart-failure
#9
George W Vetrovec, Mark Anderson, Theodore Schreiber, Jeffrey Popma, William Lombardi, Brijeshwar Maini, Jacob Eifer Moller, Andreas Schäfer, Simon R Dixon, Shelley Hall, E Magnus Ohman, Catalin Mindrescu, Jeffrey Moses, William O'Neill
Management of patients requiring temporary, mechanical hemodynamic support during high- risk percutaneous coronary intervention (PCI) or in cardiogenic shock is rapidly evolving. With the availability of the Impella 2.5, CP, 5.0, LD, and RP percutaneous mechanical circulatory support devices, there is a need for continued surveillance of outcomes. Three factors underline the importance of a registry for these populations. First, large randomized trials of hemodynamic support, involving cardiogenic shock, are challenging to conduct...
May 2018: American Heart Journal
https://www.readbyqxmd.com/read/29753113/cardiovascular-responses-during-resistance-exercise-in-patients-with-parkinson-disease
#10
Roberto Miyasato, Carla Silva-Batista, Tiago Peçanha, David A Low, Marco T de Mello, Maria E Piemonte, Carlos Ugrinowitsch, Cláudia L M Forjaz, Hélcio Kanegusuku
BACKGROUND: Patients with Parkinson disease (PD) present cardiovascular autonomic dysfunction which impairs blood pressure control. However, cardiovascular responses during resistance exercise are unknown in these patients. OBJECTIVE: Investigate the cardiovascular responses during resistance exercise performed with different muscle masses, in patients with PD. DESIGN: Two groups, repeated-measures design. SETTING: Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo...
May 9, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29752872/functional-neuroimaging-of-nociceptive-and-pain-related-activity-in-the-spinal-cord-and-brain-insights-from-neurovascular-coupling-studies
#11
Thierry Paquette, Renaud Jeffrey-Gauthier, Hugues Leblond, Mathieu Piché
Spinal cord and brain processes underlie pain perception, which produces systemic cardiovascular changes. In turn, the autonomic nervous system regulates vascular function in the spinal cord and brain in order to adapt to these systemic changes, while neuronal activity induces local vascular changes. Thus, autonomic regulation and pain processes in the brain and spinal cord are tightly linked and interrelated. The objective of this topical review is to discuss work on neurovascular coupling during nociceptive processing in order to highlight supporting evidence and limitations for the use of cerebral and spinal fMRI to investigate pain mechanisms and spinal nociceptive processes...
May 12, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29750885/severe-acute-heart-failure-experimental-model-with-very-low-mortality
#12
S Lacko, M Mlček, P Hála, M Popková, D Janák, M Hrachovina, J Kudlička, V Hrachovina, P Ošťádal, O Kittnar
The growth in the experimental research of facilities to support extracorporeal circulation requires the further development of models of acute heart failure that can be well controlled and reproduced. Two types of acute heart failure were examined in domestic pigs (Sus scrofa domestica): a hypoxic model (n = 5) with continuous perfusion of the left coronary artery by hypoxic deoxygenated blood and ischemic model (n = 9) with proximal closure of the left coronary artery and controlled hypoperfusion behind the closure...
May 10, 2018: Physiological Research
https://www.readbyqxmd.com/read/29746312/calculation-of-the-alma-risk-of-right-ventricular-failure-after-left-ventricular-assist-device-implantation
#13
Antonio Loforte, Andrea Montalto, Francesco Musumeci, Cristiano Amarelli, Carlo Mariani, Vincenzo Polizzi, Paola Lilla Della Monica, Francesco Grigioni, Roberto Di Bartolomeo, Giuseppe Marinelli
Right ventricular failure after continuous-flow left ventricular assist device (LVAD) implantation is still an unsolved issue and remains a life-threatening event for patients. We undertook this study to determine predictors of the patients who are candidates for isolated LVAD therapy as opposed to biventricular support (BVAD). We reviewed demographic, echocardiographic, hemodynamic, and laboratory variables for 258 patients who underwent both isolated LVAD implantation and unplanned BVAD because of early right ventricular failure after LVAD insertion, between 2006 and 2017 (LVAD = 170 and BVAD = 88)...
May 8, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29745979/trends-etiologies-and-predictors-of-90-day-readmission-after-percutaneous-ventricular-assist-device-implantation-a-national-population-based-cohort-study
#14
Hafeez Ul Hassan Virk, Byomesh Tripathi, Shuchita Gupta, Akanksha Agrawal, Sandeep Dayanand, Faisal Inayat, Chayakrit Krittanawong, Ali Raza Ghani, Mohammad Nour Zabad, Parasuram Melarcode Krishnamoorthy, Aman Amanullah, Gregg Pressman, Christian Witzke, Sean Janzer, Jon George, Sanjog Kalra, Vincent Figueredo
Percutaneous ventricular assist devices (pVADs) are indicated to provide hemodynamic support in high-risk percutaneous interventions and cardiogenic shock. However, there is a paucity of published data regarding the etiologies and predictors of 90-day readmissions following pVAD use. We studied the data from the US Nationwide Readmissions Database (NRD) for the years 2013 and 2014. Patients with a primary discharge diagnosis of pVAD use were collected by searching the database for International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) procedural code 37...
May 10, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29745563/-a-correction-method-for-calculating-resistance-of-westerhof-s-resistor
#15
Yunshu Yang, Yuanwen Zou
The objective of the mock circulatory system (MCS) is to construct the characteristics of cardiovascular hemodynamics. Westerhof 's resistor that often regarded as the laminar flow resistance in the MCS, is commonly used to simulate the peripheral resistance of the cardiovascular system. However, the theoretical calculation value of fluid resistance of the Westerhof 's resistor shows distinguished difference with the actual needed value. If the theoretical resistance is regarded as the actual needed one and be used directly in the experiment, the experimental accuracy would not be acceptable...
August 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29745477/outcomes-of-patients-with-cardiogenic-shock-treated-with-tandemheart-%C3%A2-percutaneous-ventricular-assist-device-importance-of-support-indication-and-definitive-therapies-as-determinants-of-prognosis
#16
LaVone Smith, Anthony Peters, Sula Mazimba, Michael Ragosta, Angela M Taylor
OBJECTIVES: The objective of this study was to review the characteristics of patients in cardiogenic shock treated with TandemHeart® percutaneous ventricular assist device (pVAD) to determine influential predictors of survival. BACKGROUND: The TandemHeart® pVAD is used in the management of patients with cardiogenic shock resulting from a variety of conditions. Several studies have documented the efficacy of this therapy and outlined its complications. Still, there is little data to guide the effective and appropriate use of this resource...
May 10, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29744563/diagnostic-workup-etiologies-and-management-of-acute-right-ventricle-failure-a-state-of-the-art-paper
#17
REVIEW
Antoine Vieillard-Baron, R Naeije, F Haddad, H J Bogaard, T M Bull, N Fletcher, T Lahm, S Magder, S Orde, G Schmidt, M R Pinsky
INTRODUCTION: This is a state-of-the-art article of the diagnostic process, etiologies and management of acute right ventricular (RV) failure in critically ill patients. It is based on a large review of previously published articles in the field, as well as the expertise of the authors. RESULTS: The authors propose the ten key points and directions for future research in the field. RV failure (RVF) is frequent in the ICU, magnified by the frequent need for positive pressure ventilation...
May 9, 2018: Intensive Care Medicine
https://www.readbyqxmd.com/read/29744220/principles-and-indications-of-extracorporeal-life-support-in-general-thoracic-surgery
#18
REVIEW
Karen McRae, Marc de Perrot
The role of extracorporeal life support (ECLS) has expanded rapidly over the past 15 years to become an important tool in advanced general thoracic surgery practice. Intra-operative and in some cases continued post-operative ECLS is redefining the scope of complex surgical care. ECLS encompasses a spectrum of temporary mechanical support that may remove CO2 , oxygenate or provide hemodynamic support or a combination thereof. The most common modalities used in general thoracic surgery include extracorporeal membrane oxygenation (ECMO), interventional lung assist device (iLA® Novalung® , Heilbronn, Germany), and extracorporeal CO2 removal (ECCO2 R)...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29743765/practice-guidelines-for-nutrition-in-critically-ill-patients-a-relook-for-indian-scenario
#19
Yatin Mehta, J D Sunavala, Kapil Zirpe, Niraj Tyagi, Sunil Garg, Saswati Sinha, Bhuvaneshwari Shankar, Sanghamitra Chakravarti, M N Sivakumar, Sambit Sahu, Pradeep Rangappa, Tanmay Banerjee, Anshu Joshi, Ganesh Kadhe
Background and Aim: Intensive-care practices and settings may differ for India in comparison to other countries. While international guidelines are available to direct the use of enteral nutrition (EN), there are no recommendations specific to Indian settings. Advisory board meetings were arranged to develop the practice guidelines specific to Indian context, for the use of EN in critically ill patients and to overcome challenges in this field. Methods: Various existing guidelines, meta-analyses, randomized controlled trials, controlled trials, and review articles were reviewed for their contextual relevance and strength...
April 2018: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29743080/hemodynamic-effects-of-perfusion-level-of-peripheral-ecmo-on-cardiovascular-system
#20
Kaiyun Gu, Zhe Zhang, Bin Gao, Yu Chang, Feng Wan
BACKGROUND: Peripheral ECMO is an effective cardiopulmonary support in clinical. The perfusion level could directly influence the performances and complications. However, there are few studies on the effects of the perfusion level on hemodynamics of peripheral ECMO. METHODS: The geometric model of cardiovascular system with peripheral ECMO was established. The blood assist index was used to classify the perfusion level of the ECMO. The flow pattern from the aorta to the femoral artery and their branches, blood flow rate from aorta to brain and limbs, flow interface, harmonic index of blood flow, wall shear stress and oscillatory shear index were chosen to evaluate the hemodynamic effects of peripheral ECMO...
May 9, 2018: Biomedical Engineering Online
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