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https://www.readbyqxmd.com/read/29245182/an-efficient-parallel-simulation-of-unsteady-blood-flows-in-patient-specific-pulmonary-artery
#1
Fande Kong, Vitaly Kheyfets, Ender Finol, Xiao-Chuan Cai
Simulation of blood flows in the pulmonary artery provides some insight into certain diseases by examining the relationship between some continuum metrics, e.g. the wall shear stress acting on the vascular endothelium, which responds to flow-induced mechanical forces by releasing vasodilators/constrictors. In [?kheyfets2015patient], V. Kheyfets studies numerically a patient-specific pulmonary circulation to show that decreasing wall shear stress is correlated with increasing pulmonary vascular impedance. In this paper, we develop a scalable parallel algorithm based on domain decomposition methods to investigate an unsteady model with patient specific pulsatile waveforms as the inlet boundary condition...
December 15, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29244522/pulmonary-vasodilator-therapy-in-shock-associated-cardiac-arrest
#2
Ryan W Morgan, Robert M Sutton, Michael Karlsson, Andrew J Lautz, Constantine D Mavroudis, William P Landis, Yuxi Lin, Sejin Jeong, Nancy Craig, Vinay M Nadkarni, Todd J Kilbaugh, Robert A Berg
RATIONALE: Many in-hospital cardiac arrests are precipitated by hypotension, often associated with systemic inflammation. These patients are less likely to be successfully resuscitated and novel approaches to their treatment are needed. OBJECTIVES: To determine if the addition of inhaled nitric oxide (iNO) to hemodynamic-directed cardiopulmonary resuscitation (HD-CPR) would improve short-term survival from cardiac arrest associated with shock and systemic inflammation...
December 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29243798/effects-of-propofol-or-sevoflurane-anesthesia-on-the-perioperative-inflammatory-response-pulmonary-function-and-cognitive-function-in-patients-receiving-lung-cancer-resection
#3
H-T Tian, X-H Duan, Y-F Yang, Y Wang, Q-L Bai, X Zhang
OBJECTIVE: To investigate the effects of propofol and sevoflurane anesthesia on the inflammatory response, pulmonary function and cognitive function of patients undergoing lung cancer resection and their differences. PATIENTS AND METHODS: 62 patients with lung cancer who underwent pulmonary lobectomy from January 2014 to January 2016 in Jining First People's Hospital were selected and randomly divided into two groups: the propofol group (n=31) and the sevoflurane group (n=31)...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29242651/perioperative-sildenafil-therapy-for-children-with-ventricular-septal-defects-and-associated-pulmonary-hypertension-undergoing-corrective-surgery-a-randomised-clinical-trial
#4
Sidharth Bhasin, Pooja Gogia, Rajeev Nair, Tapan Kumar Sahoo
Background and Aims: Sildenafil is known to reduce pulmonary artery pressure but its role in the perioperative period has not been well studied. We aimed to evaluate the efficacy of sildenafil in controlling post-operative pulmonary hypertension in children with pulmonary hypertension undergoing surgeries for correction of ventricular septal defect. Methods: The patients were divided randomly into two groups of thirty each. Group 1 (placebo) received pre-operative placebo and post-operative sildenafil (0...
October 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29240626/first-report-of-biventricular-percutaneous-impella-ventricular-assist-device-use-in-pediatric-patients
#5
Javier J Lasa, Daniel A Castellanos, Susan W Denfield, William J Dreyer, Sebastian C Tume, Henri Justino, Athar M Qureshi
There is a growing interest in the use of percutaneously delivered ventricular assist devices (PVAD) in the pediatric patient population. A 16 year old female and 18 year old male both status post heart transplantation presented with evidence of graft rejection and acute severe global systolic and diastolic heart failure necessitating hemodynamic catheterization and inotropic support. Both underwent percutaneous Impella CP LVAD (Abiomed, Danvers, MA) placement with close monitoring of right ventricular function...
December 11, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29240068/-treatment-of-a-woman-with-phlegmasia-cerulea-dolens-complicated-by-massive-pulmonary-thromboembolism-and-intestinal-haemorrhage
#6
E Iu Belousov, V V Soroka, K N Fomin
Acute thrombosis of the lower limb deep veins remains one of the most common vascular diseases. It is characterised by formation of thrombotic masses in the system of the deep veins of the lower extremities. A serious complication associated with deep vein thrombosis is pulmonary embolism. In rare cases, under certain conditions a massive and disseminated blockade of the venous outflow with thrombotic masses may lead to ischaemia of the extremity with the formation of superficial and deep necroses and later on to gangrene...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29240058/-venous-thromboembolic-complications-in-patients-with-cardiovascular-implantable-electronic-devices
#7
R E Kalinin, I A Suchkov, I I Shitov, N D Mzhavanadze, V O Povarov
The problem of venous thromboembolic complications (VTECs) in patients with cardiovascular implantable electronic devices (CIEDs) is extremely important today because of an annually increasing number of surgical interventions for life-threatening arrhythmias and chronic heart failure. There are hitherto no clearly defined reliable risk factors for VTECs due to heterogeneity of the available literature data. Some sources point to elevated thrombus formation in patients with a large number of electrodes, in repeat operative interventions, in the presence of a temporary pacemaker, in implantation on the left side, silicon cover of an electrode, others refute these facts...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29240049/-use-of-local-thrombolysis-in-patients-with-massive-pulmonary-thromboembolism-and-moderate-to-severe-pulmonary-hypertension
#8
Iu E Klevanets, A A Karpenko, A N Shilova
Presented herein are the results of treating a total of 110 patients with acute massive pulmonary thromboembolism. The patients included in the study were divided into 2 groups depending on the degree of severity of pulmonary hypertension. All patients underwent interventional treatment, i.e., endovascular mechanical fragmentation with local thrombolysis. Both short- and long-term outcomes were then analysed. Performing local thrombolysis made it possible to achieve regression of clinical manifestations of acute respiratory insufficiency in more than 98% of patients...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29239263/percutaneous-mechanical-thrombectomy-combined-with-catheter-directed-thrombolysis-in-the-treatment-of-acute-pulmonary-embolism-and-lower-extremity-deep-venous-thrombosis-a-novel-one-stop-endovascular-strategy
#9
Bing Liu, MingYuan Liu, LiHong Yan, JunWei Yan, Jiang Wu, XueFei Jiao, MingJin Guo
Objective This study was performed to evaluate the efficacy and feasibility of percutaneous mechanical thrombectomy (PMT) combined with catheter-directed thrombolysis (CDT) in patients with acute pulmonary embolism (APE) and lower extremity deep venous thrombosis (LEDVT). Methods In total, 20 consecutive patients with APE and LEDVT were prospectively selected for PMT combined with CDT. Mechanical thrombus fragmentation and aspiration using a pigtail rotation catheter followed by CDT was performed in each patient...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29239257/cardiac-magnetic-resonance-assessment-of-diastolic-dysfunction-in-acute-coronary-syndrome
#10
Shah M Azarisman, Karen S Teo, Matthew I Worthley, Stephen G Worthley
Chest pain is an important presenting symptom. However, few cases of chest pain are diagnosed as acute coronary syndrome (ACS) in the acute setting. This results in frequent inappropriate discharge and major delay in treatment for patients with underlying ACS. The conventional methods of assessing ACS, which include electrocardiography and serological markers of infarct, can take time to manifest. Recent studies have investigated more sensitive and specific imaging modalities that can be used. Diastolic dysfunction occurs early following coronary artery occlusion and its detection is useful in confirming the diagnosis, risk stratification, and prognosis post-ACS...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29239149/agreement-between-ccnexfin-co-trek-cardiac-output-and-intermittent-cold-bolus-pulmonary-thermodilution-in-a-prospective-multi-centre-study
#11
Nicolaas H Sperna Weiland, Jim W de Wever, Yoni van Duivenvoorde, Christa Boer, Ludmil Mitrev, Muhammad Muntazar, Kinjal Patel, Markus W Hollmann, Benedikt Preckel
BACKGROUND: The ccNexfin system uses the CO-trek algorithm to analyse a non-invasively obtained arterial pressure waveform and calculate cardiac output (NEXCO). It remains matter of debate whether NEXCO can replace invasive, pulmonary artery catheter derived, cold-bolus pulmonary thermodilution cardiac output measurement (PACCO). This study aimed at testing NEXCO-PACCO agreement in a large sample size, multi-centre study. We hypothesized that agreement between NEXCO and PACCO would be demonstrated by a mean accuracy (bias) < 0...
December 13, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29237673/mycotic-pulmonary-artery-aneurysm-secondary-to-septic-emboli
#12
Kellen A Knowles, Matthew Alvin, Emily Dunn
No abstract text is available yet for this article.
December 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29237465/mid-term-results-of-mitral-valve-repair-using-flexible-bands-versus-complete-rings-in-patients-with-degenerative-mitral-valve-disease-a-prospective-randomized-study
#13
Alexandr V Bogachev-Prokophiev, Alexandr V Afanasyev, Sergei I Zheleznev, Vladimir M Nazarov, Ravil M Sharifulin, Alexandr M Karaskov
BACKGROUND: We aimed to compare the outcomes of mitral valve repair with flexible band (FB) versus complete semirigid ring (SR) in degenerative mitral valve disease patients. METHODS: From September 2011 to 2014, 171 patients were randomized and underwent successful mitral valve repair using a SR (n = 85) or FB (n = 86). There were no significant between-group differences at baseline. RESULTS: There were no early mortalities. The mean follow up was 24...
December 13, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29237073/frequencies-of-borderline-pulmonary-hypertension-before-and-after-the-detect-algorithm-results-from-a-prospective-systemic-sclerosis-cohort
#14
Anna-Maria Hoffmann-Vold, Håvard Fretheim, Øyvind Midtvedt, Karin Kilian, Marianne Angelshaug, Asad Chaudhary, Ragnar Gunnarsson, Cathrine Brunborg, Torhild Garen, Arne K Andreassen, Einar Gude, Øyvind Molberg
Objective: The DETECT algorithm was developed for screening patients with SSc at high risk of pulmonary arterial hypertension (PAH). We evaluated the impact of this algorithm in a SSc population. Methods: Patients from the unselected, prospective Oslo University Hospital SSc study were divided into the Early and DETECT cohorts, respectively, depending on whether an incident right heart catheterization (RHC) was performed before (2009-13) or after (2014-17) the DETECT algorithm was instituted...
December 11, 2017: Rheumatology
https://www.readbyqxmd.com/read/29237020/extrinsic-compression-of-left-main-coronary-artery-by-aneurysmal-pulmonary-artery-in-severe-pulmonary-hypertension-its-correlates-clinical-impact-and-management-strategies
#15
Ozgur Yasar Akbal, Cihangir Kaymaz, Ibrahim Halil Tanboga, Aykun Hakgor, Fatih Yilmaz, Sevim Turkday, Cem Dogan, Seda Tanyeri, Durmus Demir, Zubeyde Bayram, Mahmut Bugrahan Cicek, Rezzan Deniz Acar, Nihal Ozdemir
Aims: Although left main coronary artery (LMCA) compression (Co) by pulmonary artery (PA) aneurysm (A) has been reported in some pulmonary hypertension (PH) series, clinical importance and management of this complication remain to be determined. In this single-centre prospective study, we evaluated correlates, clinical impact, and management strategies of LMCA-Co in patients with PH. Methods and results: Our study group comprised 269 (female 166, age 52.9 ± 17...
December 8, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29236845/comparison-between-conventional-protective-mechanical-ventilation-and-high-frequency-oscillatory-ventilation-associated-with-the-prone-position
#16
José Roberto Fioretto, Susiane Oliveira Klefens, Rafaelle Fernandes Pires, Cilmery Suemi Kurokawa, Mario Ferreira Carpi, Rossano César Bonatto, Marcos Aurélio Moraes, Carlos Fernando Ronchi
OBJECTIVE: To compare the effects of high-frequency oscillatory ventilation and conventional protective mechanical ventilation associated with the prone position on oxygenation, histology and pulmonary oxidative damage in an experimental model of acute lung injury. METHODS: Forty-five rabbits with tracheostomy and vascular access were underwent mechanical ventilation. Acute lung injury was induced by tracheal infusion of warm saline. Three experimental groups were formed: healthy animals + conventional protective mechanical ventilation, supine position (Control Group; n = 15); animals with acute lung injury + conventional protective mechanical ventilation, prone position (CMVG; n = 15); and animals with acute lung injury + high-frequency oscillatory ventilation, prone position (HFOG; n = 15)...
December 7, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29236195/measures-of-subclinical-cardiac-dysfunction-and-increased-filling-pressures-associate-with-pulmonary-arterial-pressure-in-the-general-population-results-from-the-population-based-rotterdam-study
#17
Ryan J Billar, Maarten J G Leening, Daphne Merkus, Guy G O Brusselle, Albert Hofman, Bruno H Ch Stricker, H Ardeschir Ghofrani, Oscar H Franco, Henning Gall, Janine F Felix
Pulmonary hypertension is associated with increased mortality and morbidity in the elderly population. Heart failure is a common cause of pulmonary hypertension. Yet, the relation between left heart parameters reflective of subclinical cardiac dysfunction and increased filling pressures, and pulmonary arterial pressures in the elderly population remains elusive. Within the population-based Rotterdam Study, 2592 unselected participants with a mean age of 72.6 years (61.4% women) had complete echocardiography data available...
December 13, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29235658/baseline-characteristics-and-outcomes-of-older-adults-seeking-care-in-ambulatory-urgent-care-clinics
#18
Bernardo J Reyes, Javier M Lopez, Diana J Galindo, Maria Briceno, Joseph G Ouslander
OBJECTIVES: To determine the most common clinical conditions associated with older adults visiting Urgent care centers (UCCs) and the potential need for further resource use. DESIGN: Cross-sectional retrospective study. SETTING: Nonprofit academic medical center with campuses and multiple satellite offices in Ohio and Florida. PARTICIPANTS: Individuals aged 55 and older who visited UCCs between August 2014 and March 2015 (N = 9,445; average age 63...
December 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29234619/delayed-pulmonary-artery-rupture-after-using-bioglue-in-cardiac-surgery
#19
Wongi Woo, Soonchang Hong, Tae-Hoon Kim, Min-Young Baek, Suk-Won Song
A 56-year-old woman, who underwent cardiac surgery 3 months previously, presented to the emergency room with pulmonary artery rupture due to the cytotoxic effects of BioGlue (CryoLife Inc., Kennesaw, GA, USA). She was successfully treated with surgical management. Although surgical glue can be effectively used for hemostasis, it can induce delayed vascular complications. Therefore, surgical glue should be used cautiously.
December 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29233725/amd3100-treatment-attenuates-pulmonary-angiogenesis-by-reducing-the-c-kit-cells-and-its-pro-angiogenic-activity-in-cbdl-rat-lungs
#20
Cheng-Cheng Shen, Bing Chen, Jian-Teng Gu, Jiao-Lin Ning, Jing Zeng, Bin Yi, Kai-Zhi Lu
Recent studies have shown that pulmonary angiogenesis is an important pathological process in the development of hepatopulmonary syndrome (HPS), and growing evidence has indicated that Stromal cell-derived factor 1/C-X-C chemokine receptor type 4 (SDF-1/CXCR4) axis is involved in pulmonary vascular disease by mediating the accumulation of c-kit+cells. This study aimed to test the effect of AMD3100, an antagonist of CXCR4, in HPS pulmonary angiogenesis. Common bile duct ligation (CBDL) rats were used as experimental HPS model and were treated with AMD3100 (1...
December 9, 2017: Biochimica et Biophysica Acta
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