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https://www.readbyqxmd.com/read/27908284/obscured-hemorrhagic-pancreatitis-after-orthotopic-heart-transplantation-complicated-with-acute-right-heart-failure-and-hepatic-dysfunction-a-case-report
#1
Ting-Wei Lin, Meng-Ta Tsai, Jun-Neng Roan, Yi-Sheng Liu, Hong-Ming Tsai, Chwan-Yau Luo
BACKGROUND: Pancreatitis is a serious complication after cardiac surgery and can lead to significant morbidities and mortality. The incidence of pancreatitis is even higher in patients undergoing heart transplantation than in those undergoing other cardiac surgeries. Nevertheless, the clinical presentations of pancreatitis are frequently atypical in these patients. CASE PRESENTATION: We report a heart recipient who was complicated with acute right heart failure initially after orthotopic heart transplantation and developed devastating unanticipated hemorrhagic pancreatitis 1 month after the transplantation...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27904840/surgical-experience-on-chronic-constrictive-pericarditis-in-african-setting-review-of-35-years-experience-in-cote-d-ivoire
#2
Koffi Herve Yangni-Angate, Yves Tanauh, Christophe Meneas, Florent Diby, Anicet Adoubi, Manga Diomande
BACKGROUND: Surgical experience with chronic constrictive pericarditis (CCP) is rarely documented in Africa; the aim of this study is therefore to review our African experience with CCP from 1977 to 2012 in terms of clinical and surgical outcomes and risk factors of early death after pericardiectomy. METHODS: This retrospective study is related to 120 patients with CCP; there were 72 men and 48 women with an average age at 28.8±10.4 years standard deviation (SD) (8-51 years)...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27897352/functional-magnetic-resonance-imaging-for-in-vivo-quantification-of-pulmonary-hypertension-in-the-sugen-5416-hypoxia-mouse
#3
Ellen C Breen, Miriam Scadeng, N Chin Lai, Fiona Murray, Timothy D Bigby
Pulmonary arterial hypertension (PAH) is characterized by elevated pulmonary artery pressures and right heart failure. PAH mouse models are instrumental in understanding disease pathophysiology. However, few methods are available to evaluate right cardiac function in small animals. In this study, magnetic resonance imaging (MRI) was used to measure in vivo cardiac dimensions in the Sugen 5416/hypoxia mouse model. Pulmonary hypertension (PH) was induced in C57BL/6 mice by three weeks of exposure to 10% oxygen and VEGF receptor inhibition (20 mg kg(-1) SU5416)...
November 29, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27888199/risk-factors-for-decreased-cardiac-output-after-coronary-artery-bypass-grafting-a-prospective-cohort-study
#4
Eduarda Ribeiro Dos Santos, Camila Takao Lopes, Vera Lucia Regina Maria, Alba Lucia Bottura Leite de Barros
BACKGROUND: No previous study has investigated the predictive risk factors of the nursing diagnosis of risk for decreased cardiac output after coronary artery bypass grafting (CABG). AIMS: This study aimed to identify the predictive risk factors of the nursing diagnosis of risk for decreased cardiac output after CABG. METHODS: This was a prospective cohort study performed at a cardiac university hospital in São Paulo, Brazil and 257 adult patients undergoing CABG were included...
November 25, 2016: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/27885445/limited-ventricular-preload-is-the-main-reason-for-reduced-stress-reserve-after-atrial-baffle-repair
#5
Andreas Eicken, Julia Michel, Alfred Hager, Daniel Tanase, Harald Kaemmerer, Julie Cleuziou, John Hess, Peter Ewert
The atrial baffle repair (ABR) significantly improved the fate of patients with transposition of the great arteries (TGA). However, these patients show impaired exercise tolerance and some present severe decline of systemic ventricular function. Intrinsic myocardial weakness, low heart rate response to exercise and diastolic filling impairment are discussed to be causative. Forty-nine long-term survivors with TGA (median age 23.7 year) after ABR were catheterized with measured oxygen consumption in four conditions (baseline, volume, atrial pacing, dobutamine) and the results were compared to 10 normal controls...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27884959/cardiac-responses-to-exercise-distinguish-postural-orthostatic-tachycardia-syndrome-variants
#6
Paolo T Pianosi, Darrell R Schroeder, Philip R Fischer
We previously showed that one-third of adolescents with postural orthostatic tachycardia syndrome (POTS) have hyperkinetic circulation. In a subsequent cohort, we compare participants with POTS grouped according to cardiac output (Q˙) versus oxygen uptake (V˙O2) function, whose circulatory response to exercise lay at the lower end of this distribution. We hypothesized that such grouping determines the circulatory response to incremental-protocol, upright, cycle ergometry by whatever blend of flow and resistance adjustments best maintains normal blood pressure...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27876287/mid-term-outcomes-of-common-congenital-heart-defects-corrected-through-a-right-subaxillary-thoracotomy
#7
Guoying An, Hongyu Zhang, Shanguang Zheng, Weixin Wang, Liming Ma
OBJECTIVE: To evaluate the mid-term outcomes of the correction of various congenital heart defects through a right subaxillary thoracotomy. METHODS: Between June 2004 and April 2014, all eligible patients were those with a common congenital heart defect corrected via an approach through a right subaxillary thoracotomy. There were 836 patients (male 417, female 419; median age, 3.5 years; median weight 13.6kg) with ventricular septal defect (VSD) closure (523 patients), atrial septal defect (ASD) closure (235 patients), partial atrioventricular canal (PAVC) correction (55 patients), mild tetralogy of Fallot (TOF) (23 patients)...
February 17, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27867292/new-impella-cardiac-power-device-used-in-patient-with-cardiogenic-shock-due-to-nonischemic-cardiomyopathy
#8
Marek Cena, Frances Karam, Rajesh Ramineni, Wissam Khalife, Alejandro Barbagelata
The new percutaneous Impella CP (Cardiac Power; Abiomed, Inc., Danvers, MA) was designed to provide a higher level of support than Impella 2.5 (Abiomed, Inc.). We present the first documented case of a patient that was transitioned from the Impella 2.5 to Impella CP. A 48-year-old male patient with no medical history was transferred to our institution with a one day history of worsening shortness of breath. The patient was unstable and found to have monomorphic ventricular tachycardia at 220 beats/min that was cardioverted to normal sinus rhythm...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/27866678/patient-specific-cfd-models-for-intraventricular-flow-analysis-from-3d-ultrasound-imaging-comparison-of-three-clinical-cases
#9
A M Bavo, A M Pouch, J Degroote, J Vierendeels, J H Gorman, R C Gorman, P Segers
BACKGROUND: As the intracardiac flow field is affected by changes in shape and motility of the heart, intraventricular flow features can provide diagnostic indications. Ventricular flow patterns differ depending on the cardiac condition and the exploration of different clinical cases can provide insights into how flow fields alter in different pathologies. METHODS: In this study, we applied a patient-specific computational fluid dynamics model of the left ventricle and mitral valve, with prescribed moving boundaries based on transesophageal ultrasound images for three cardiac pathologies, to verify the abnormal flow patterns in impaired hearts...
November 11, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27866675/hemodynamics-of-patient-specific-aorta-pulmonary-shunt-configurations
#10
Senol Piskin, H Firat Altin, Okan Yildiz, Ihsan Bakir, Kerem Pekkan
Optimal hemodynamics in aorta-pulmonary shunt reconstruction is essential for improved post-operative recovery of the newborn congenital heart disease patient. However, prior to in vivo execution, the prediction of post-operative hemodynamics is extremely challenging due to the interplay of multiple confounding physiological factors. It is hypothesized that the post-operative performance of the surgical shunt can be predicted through computational blood flow simulations that consider patient size, shunt configuration, cardiac output and the complex three-dimensional disease anatomy...
November 11, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27865733/systolic-and-diastolic-unloading-by-mechanical-support-of-the-acute-vs-the-chronic-pressure-overloaded-right-ventricle
#11
Tom Verbelen, Daniel Burkhoff, Keiichiro Kasama, Marion Delcroix, Filip Rega, Bart Meyns
BACKGROUND: Right ventricular (RV) mechanical support is well described in cases of sudden increase in RV afterload. In cases of chronic RV pressure overload (e.g., pulmonary arterial hypertension), it has rarely been described. METHODS: The pulmonary artery was banded in 18 sheep. In the acute group (n = 9), we immediately implanted a Synergy Pocket Micro-Pump. Blood was withdrawn from the right atrium to the pulmonary artery. In the chronic group (n = 9), this pump was implanted 8 weeks after banding...
October 17, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/27865530/cardiac-function-and-survival-are-affected-by-crude-oil-in-larval-red-drum-sciaenops-ocellatus
#12
Alexis J Khursigara, Prescilla Perrichon, Naim Martinez Bautista, Warren W Burggren, Andrew J Esbaugh
Following exposure to weathered and non-weathered oil, lethal and sub-lethal impacts on red drum larvae were assessed using survival, morphological, and cardiotoxicity assays. The LC50 for red drum ranged from 14.6 (10.3-20.9) to 21.3 (19.1-23.8) μgl(-1) ΣPAH with no effect of exposure timing during the pre-hatch window or oil weathering. Similarly, morphological deformities showed dose responses in the low ppb range. Cardiac output showed similar sensitivity resulting in a major 70% reduction after exposure to 2...
November 17, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27864873/hereditary-haemorrhagic-telangiectasia-to-transplant-or-not-to-transplant-is-there-a-right-time-for-liver-transplantation
#13
Yannick D Muller, Roland Oppliger, Romain Breguet, Philippe Meyer, Laura Rubbia-Brandt, Pierre-Auguste Petignat, Thomas Harr, Eric Dayer, Jörg D Seebach
BACKGROUND & AIMS: Hereditary haemorrhagic telangiectasia is characterized by arterio-venous malformations (AVM). It frequently involves the liver without clinical symptoms, but may lead to biliary ischaemia, portal hypertension, or fatal high-output heart failure. The indication of liver transplantation is controversial. METHODS: Herein, we report the case of a 65-year-old female patient with a 'double Osler syndrome' consisting of hereditary haemorrhagic telangiectasia (HHT) and type I hereditary angioedema diagnosed at the age of 25 and 22 years respectively...
December 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27861431/pediatric-artificial-lung-a-low-resistance-pumpless-artificial-lung-alleviates-an-acute-lamb-model-of-increased-right-ventricle-afterload
#14
Fares Alghanem, Benjamin S Bryner, Emilia M Jahangir, Uditha P Fernando, John M Trahanas, Hayley R Hoffman, Robert H Bartlett, Alvaro Rojas-Peña, Ronald B Hirschl
Lung disease in children often results in pulmonary hypertension and right heart failure. The availability of a pediatric artificial lung (PAL) would open new approaches to the management of these conditions by bridging to recovery in acute disease or transplantation in chronic disease. This study investigates the efficacy of a novel PAL in alleviating an animal model of pulmonary hypertension and increased right ventricle afterload.Five juvenile lambs (20-30 Kg) underwent PAL implantation in a pulmonary artery to left atrium configuration...
November 15, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27861176/low-cardiac-output-after-orthotopic-heart-transplant-secondary-to-large-inferior-vena-cava-thrombus-after-prothrombin-complex
#15
Kimberly Ann Pollock, Zeb McMillan, Gert Diederick Pretorius, Brett Cronin
Low cardiac output after orthotopic heart transplant (OHT) may be attributed to inadequate preload, vasodilation, and/or reduced inotropy. Inadequate preload because of an inferior vena cava (IVC) thrombus is a rare cause of low cardiac output and not frequently described in the literature. Although the use of prothrombin complex (PCC) has been associated with thrombus formation, its contribution to life-threatening IVC thrombosis has yet to be described. This case report describes the use of perioperative ultrasound in the diagnosis and management of a low cardiac output state induced by an IVC thrombus in an OHT recipient who received PCC...
November 17, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27856414/neurovascular-control-of-blood-pressure-is-influenced-by-aging-sex-and-sex-hormones
#16
Sarah Elizabeth Baker, Jacqueline K Limberg, Sushant M Ranadive, Michael J Joyner
In this review, we highlight that the relationship between muscle sympathetic nerve activity (MSNA) and mean arterial pressure is complex, differs by sex, and changes with age. In young men there is an inverse relationship between MSNA and cardiac output where high MSNA is compensated for by low cardiac output. This inverse relationship is not seen in older men. In young women sympathetic vasoconstriction is offset by β-adrenoreceptor mediated vasodilation, limiting the ability of young women to maintain blood pressure in response to orthostatic stress...
November 16, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27852718/high-intensity-interval-training-versus-moderate-intensity-steady-state-training-in-uk-cardiac-rehabilitation-programmes-hiit-or-miss-uk-study-protocol-for-a-multicentre-randomised-controlled-trial-and-economic-evaluation
#17
Gordon McGregor, Simon Nichols, Thomas Hamborg, Lucy Bryning, Rhiannon Tudor-Edwards, David Markland, Jenny Mercer, Stefan Birkett, Stuart Ennis, Richard Powell, Brian Begg, Mark J Haykowsky, Prithwish Banerjee, Lee Ingle, Rob Shave, Karianne Backx
INTRODUCTION: Current international guidelines for cardiac rehabilitation (CR) advocate moderate-intensity exercise training (MISS, moderate-intensity steady state). This recommendation predates significant advances in medical therapy for coronary heart disease (CHD) and may not be the most appropriate strategy for the 'modern' patient with CHD. High-intensity interval training (HIIT) appears to be a safe and effective alternative, resulting in greater improvements in peak oxygen uptake (VO2 peak)...
November 16, 2016: BMJ Open
https://www.readbyqxmd.com/read/27849873/231-intraoperative-regional-saturation-to-predict-low-cardiac-output-syndrome-after-cardiac-surgery
#18
Swetha Madhavarapu, Lisa Rosen, David Meyer, Vincent Parnell, James Schneider, Adnan Bakar
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27849707/27-resource-utilization-and-cost-of-low-cardiac-output-syndrome-after-cardiac-surgery
#19
John Luber, Andra Duncan, Paula Bokesch, Bobbie James, Doug Randall, John Kelley
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27849657/long-term-follow-up-on-health-related-quality-of-life-after-mechanical-circulatory-support-in-children
#20
Thilo P K Fleck, Georg Dangel, Felix Bächle, Christoph Benk, Jochen Grohmann, Johannes Kroll, Matthias Siepe, Rene Höhn, Janbernd Kirschner, Friedhelm Beyersdorf, Brigitte Stiller
OBJECTIVE: The objective of this study was to evaluate health-related quality of life in long-term survivors of mechanical circulatory support after acute cardiopulmonary failure. DESIGN: Prospective follow-up study. SETTING: Single-institutional in a center for congenital heart disease and pediatric cardiology. PATIENTS: Fifty patients who underwent 58 mechanical circulatory support therapies in our institution from 2001 to 2012...
November 15, 2016: Pediatric Critical Care Medicine
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