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https://www.readbyqxmd.com/read/28526950/the-effect-of-post-mortem-computed-tomography-angiography-pmcta-using-water-soluble-iodine-based-radiographic-contrast-on-histological-analysis-of-the-liver-kidneys-and-left-ventricle-of-the-heart
#1
Samantha Higgins, Sarah Parsons, Noel Woodford, Matthew Lynch, Christopher Briggs, Chris O'Donnell
The purpose of this study was to investigate the impact of post-mortem computed-tomography angiography (PMCTA) on the histology of the liver, kidneys and heart. Multiple tissue cores were collected from the liver, left and right kidneys and left ventricle utilizing CT-guided biopsy. Subsequent whole body PMCTA was performed using a solution of polyethylene glycol and iodinated radiographic contrast, and an embalming pump. Corresponding biopsy cores were collected at autopsy, and blinded histology analysis assessing for PMCTA-induced histology artefact was performed...
May 20, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28526545/obstructive-sleep-apnoea-and-right-ventricular-function-a-combined-assessment-by-speckle-tracking-and-three-dimensional-echocardiography
#2
Agostino Buonauro, Maurizio Galderisi, Ciro Santoro, Angelo Canora, Maria Luisa Bocchino, Francesco Lo Iudice, Maria Lembo, Roberta Esposito, Sabrina Castaldo, Bruno Trimarco, Alessandro Sanduzzi
BACKGROUND: Little is known on right ventricular (RV) involvement in obstructive sleep apnoea (OSA). This study aimed at evaluating early RV dysfunction by standard and advanced echocardiography in OSA. METHODS: Fifty-nine OSA patients without heart failure and 29 age-matched controls underwent standard, speckle tracking and real time 3D echocardiography of right ventricle. OSA patients performed lung function tests and overnight cardio-respiratory monitoring with evaluation of apnea-hypopnea index (AHI)...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28526502/hemodynamic-parameters-predict-adverse-outcomes-following-biventricular-conversion-with-single-ventricle-palliation-takedown
#3
Melissa A Herrin, David Zurakowski, Christopher W Baird, Puja Banka, Jesse J Esch, Pedro J Del Nido, Sitaram M Emani
OBJECTIVE: Patients with a borderline left ventricular hypoplasia in the hypoplastic left heart syndrome variant or an unbalanced atrioventricular canal who undergo initial single-ventricle palliation may be candidates for biventricular (BiV) conversion following left ventricle (LV) recruitment procedures. We investigated associations among preoperative parameters and postoperative outcomes in patients undergoing BiV conversion. METHODS: We performed a retrospective review of patients who underwent BiV conversion to determine variables associated with clinical outcomes...
April 11, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28523853/radiographic-evaluation-of-cardiac-silhouette-using-vertebral-heart-size-method-in-squirrel-monkey-saimiri-sciureus
#4
L N Coutinho, Mbs Brito, A A Imbeloni, Acc Lacreta, F Rech, M P Souto, Ira Ataíde
BACKGROUND: The Saimiri sciureus represents a valuable resource for biomedical research, due to its large number on primate centers and similarity to human anatomy and physiology. The aim of this study was to apply the method proposed by Buchanan & Bücheler in healthy squirrel monkeys (S. sciureus) and determine by radiographic examination, the average value of the vertebral heart size (VHS) for the specie. METHOD: Laterolateral left (LLL), laterolateral right (LLR), ventrodorsal (VD), and dorsoventral (DV) projections were used for radiographic examinations to evaluate the heart silhouette of S...
May 19, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28516314/harmonic-subtraction-for-evaluating-right-ventricle-ejection-fraction-from-planar-equilibrium-radionuclide-angiography
#5
Dacian V Bonta, John N Aarsvold, Sandra F Grant, Naomi P Alazraki
We report an initial investigation of a subtraction-based method to estimate right ventricle ejection fraction (RVEF) from ECG-gated planar equilibrium radionuclide angiography (ERNA) data. Twenty-six consecutive patients referred for scintigraphic evaluation of cardiac function prior to chemotherapy had ECG-gated first-pass (FP) imaging and ERNA imaging performed following the same radiotracer injection. RVEF was computed from FP images (RVEFFP) and separately from ERNA images (RVEFERNA). Standard methods for computing ejection fractions were used to obtain RVEFFP values...
May 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28515824/cardiogenic-shock-acute-severe-mitral-regurgitation-and-complete-heart-block-after-cavo-tricuspid-isthmus-atrial-flutter-ablation
#6
Thein Tun Aung, Edward Samuel Roberto, Kevin D Kravitz
Radiofrequency (RF) ablation is the first-line management of cavo-tricuspid isthmus dependent atrial flutter. It has been performed with 95% success rate. Adverse events are very rare. We report the first case of acute severe mitral regurgitation (MR) and complete heart block developed after successful atrial flutter ablation. A 62-year-old female with mild MR presented with palpitations. Surface electrocardiogram was suggestive of isthmus dependent atrial flutter. A duodecapolar mapping catheter showed an atrial flutter with cycle length of 280 ms...
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28513189/transcatheter-aortic-valve-implantation-the-transaortic-approach
#7
Simon Cy Chow, Gary Sh Cheung, Alex Pw Lee, Eugene B Wu, Jacky Yk Ho, Micky Wt Kwok, Peter Sy Yu, Innes Yp Wan, Malcolm J Underwood, Randolph Hl Wong
Background Transcatheter aortic valve implantation has been established as a safe and effective treatment option for patients at high or prohibitive surgical risk. However, some patients may not be suitable for the transfemoral approach due to severe iliofemoral disease or aneurysmal disease of the thoracoabdominal aorta. The aim of this case series was to evaluate the feasibility and clinical outcomes of the transaortic approach. Methods From May 2015 to June 2016, 5 patients (mean age 78.4 ± 3.9 years) with severe symptomatic aortic stenosis underwent transaortic transcatheter aortic valve implantation after a heart team discussion...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28513002/one-oxygen-breath-shortened-the-time-to-return-of-spontaneous-circulation-in-severely-asphyxiated-piglets
#8
Rikard Linner, Doris Cunha-Goncalves, Valeria Perez-de-Sa
AIM: Asphyxiated neonates should be resuscitated with air, but it remains unclear if oxygen supplementation is needed in ineffectively ventilated newborn infants. We studied the return of spontaneous circulation (ROSC) with oxygen or air in an experimental model of inadequate ventilation. METHODS: Asphyxia was induced in 16 newborn piglets until their heart rate was <60 bpm or mean arterial pressure (MAP) <30 mmHg. During the first 10 minutes of resuscitation, they received one breath per minute of oxygen (n=8) or air (n=8)...
May 16, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28512702/an-intracardiac-soft-robotic-device-for-augmentation-of-blood-ejection-from-the-failing-right-ventricle
#9
Markus A Horvath, Isaac Wamala, Eric Rytkin, Elizabeth Doyle, Christopher J Payne, Thomas Thalhofer, Ignacio Berra, Anna Solovyeva, Mossab Saeed, Sara Hendren, Ellen T Roche, Pedro J Del Nido, Conor J Walsh, Nikolay V Vasilyev
We introduce an implantable intracardiac soft robotic right ventricular ejection device (RVED) for dynamic approximation of the right ventricular (RV) free wall and the interventricular septum (IVS) in synchrony with the cardiac cycle to augment blood ejection in right heart failure (RHF). The RVED is designed for safe and effective intracardiac operation and consists of an anchoring system deployed across the IVS, an RV free wall anchor, and a pneumatic artificial muscle linear actuator that spans the RV chamber between the two anchors...
May 16, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28508439/conventional-and-right-sided-screening-for-subcutaneous-icd-in-a-population-with-congenital-heart-disease-at-high-risk-of-sudden-cardiac-death
#10
Pau Alonso, Joaquín Osca, Joaquín Rueda, Oscar Cano, Pedro Pimenta, Ana Andres, María José Sancho, Luis Martinez
BACKGROUND: Information regarding suitability for subcutaneous defibrillator (sICD) implantation in tetralogy of Fallot (ToF) and systemic right ventricle is scarce and needs to be further explored. The main objective of our study was to determine the proportion of patients with ToF and systemic right ventricle eligible for sICD with both, standard and right-sided screening methods. Secondary objectives were: (i) to study sICD eligibility specifically in patients at high risk of sudden cardiac death, (ii) to identify independent predictors for sICD eligibility, and (iii) to compare the proportion of eligible patients in a nonselected ICD population...
May 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28508379/-retinal-pigment-epithelial-detachment-in-hyperviscosity-syndrome
#11
V C Müller, N Mihailovic, C R Clemens, F Alten, N Eter
We present a case of a 57-year-old woman who reported bilateral visual impairment since 2 weeks. She had a medical history of congenital, cyanotic heart failure. Funduscopic examination revealed serous retinal detachment on the left side, central subneurosensory detachment on the right side, retinal vessel tortuosity and multiple retinal haemorrhages in the periphery. As blood analysis showed a distinct increase in haemoglobin and haematocrit, hyperviscosity syndrome was suspected to have caused bilateral serous retinal detachment...
May 15, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28505294/anticalcification-effect-of-a-combination-of-decellularization-organic-solvents-and-amino-acid-detoxification-on-glutaraldehyde-fixed-xenopericardial-heart-valves-in-a-large-animal-long-term-circulatory-model
#12
Chun Soo Park, Yong Jin Kim, Jeong Ryul Lee, Hong-Gook Lim, Ji-Eun Chang, Saeromi Jeong, Nayun Kwon
OBJECTIVES: : We aimed to investigate the effect of a combination of anticalcification treatments, which were effective for preventing calcification in a small animal experiment, on glutaraldehyde-fixed xenopericardial valves using a large-animal long-term circulatory model. METHODS: : Valved conduits were made of porcine pericardium as a leaflet and bovine pericardium as a conduit and were implanted into the right ventricular outflow tract of goats under cardiopulmonary bypass...
May 12, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28504501/-bowel-obstruction-by-hamartomatous-polyp-in-a-pediatric-patient-with-tuberous-sclerosis
#13
Adriana V Scrigni, Adriana Bottero, Andrea Bosaleh, Nuria Aisenberg, Marcela Paglia, Lisandro Manfrin, Tai C Luong
Tuberous sclerosis is an autosomal dominant disorder with a wide clinical spectrum of disease. It is characterized by development of benign tumors in multiple organs due to a disturbance in cellular growth and differentiation. It usually affects skin, brain, heart and kidney. Gastrointestinal involvement is rare and mainly restricted to adults and sigmoid colon and rectum. In children there are only two cases; our patient would be the third. We present a patient with tuberous sclerosis who began at the first month of life with repeated intestinal subocclusion...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28503386/mechanical-thrombectomy-for-acute-ischemic-stroke-after-cardiac-surgery
#14
Ali S Haider, Prabhat Garg, Ian T Watson, Dean Leonard, Umair Khan, Ahmed Haque, Phu Nguyen, Kennith F Layton
Ischemic stroke is a rare yet devastating complication that may occur following cardiothoracic surgery. Fibrinolytic treatment is contraindicated due to elevated risk for hemorrhage. Mechanical thrombectomy entails a catheterized approach wherein the thrombus is physically removed from the vessel without the use of fibrinolytics, minimizing the possibility of intracranial hemorrhage. Here, we present two original cases of mechanical thrombectomy as treatment for patients experiencing emergent large vessel occlusion following cardiothoracic surgery...
April 11, 2017: Curēus
https://www.readbyqxmd.com/read/28501374/the-effect-of-the-superior-cavopulmonary-anastomosis-on-ventricular-remodeling-in-infants-with-single-ventricle
#15
Renee Margossian, Victor Zak, Amanda J Shillingford, Anthony M Hlavacek, James F Cnota, Michael D Puchalski, Jami C Levine, Brian W McCrindle, Meryl S Cohen, Karen Altmann, Piers C Barker, Daphne T Hsu, Steven D Colan
BACKGROUND: Infants with single ventricular physiology have volume and pressure overload that adversely affect ventricular mechanics. The impact of superior cavopulmonary anastomosis (SCPA) on single left ventricles versus single right ventricles is not known. METHODS: As part of the Pediatric Heart Network placebo-controlled trial of enalapril in infants with single ventricular physiology, echocardiograms were obtained before SCPA and at 14 months and analyzed in a core laboratory...
May 10, 2017: Journal of the American Society of Echocardiography
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
#16
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/28500462/perfusion-index-and-left-ventricular-output-correlation-in-healthy-term-infants
#17
Iuri Corsini, Alessandra Cecchi, Caterina Coviello, Carlo Dani
Perfusion index (PI) is a non-invasive marker of peripheral perfusion which is detected by an oximeter. We aimed to assess the correlation between PI and left ventricular output (LVO) in healthy term infants at the time of the screening for congenital heart disease (CHD). PI was measured at 48 ± 2 h of life in the infant's right hand (PIrh) and in 1 foot (PIf) contemporary to SpO2 for CHD screening. Heart ultrasound was performed immediately after the screening procedure for measuring LVO. Forty-nine healthy term infants were studied...
May 12, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28499671/tricuspid-annuloplasty-versus-a-conservative-approach-in-patients-with-functional-tricuspid-regurgitation-undergoing-left-sided-heart-valve-surgery-a-study-level-meta-analysis
#18
Matteo Pagnesi, Claudio Montalto, Antonio Mangieri, Eustachio Agricola, Rishi Puri, Mauro Chiarito, Marco B Ancona, Damiano Regazzoli, Luca Testa, Michele De Bonis, Neil E Moat, Josep Rodés-Cabau, Antonio Colombo, Azeem Latib
BACKGROUND: Tricuspid valve (TV) repair at the time of left-sided valve surgery is indicated in patients with either severe functional tricuspid regurgitation (TR) or mild-to-moderate TR with coexistent tricuspid annular dilation or right heart failure. We assessed the benefits of a concomitant TV repair strategy during left-sided surgical valve interventions, focusing on mortality and echocardiographic TR-related outcomes. METHODS: A meta-analysis was performed of studies reporting outcomes of patients who underwent left-sided (mitral and/or aortic) valve surgery with or without concomitant TV repair...
May 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28499654/hybrid-extracorporeal-membrane-oxygenation-using-avalon-elite-double-lumen-cannula-ensures-adequate-heart-brain-oxygen-supply
#19
Ju Zhao, Dongfang Wang, Cherry Ballard-Croft, Jingkun Wang, Po-Lin Hsu, Matthew Bacchetta, Joseph B Zwischenberger
BACKGROUND: Differential hypoxia exists in peripheral venoarterial (VA) extracorporeal membrane oxygenation (ECMO) patients with compromised lungs, causing hypoxic damage to heart or brain. We proposed an Avalon Elite (Maquet, Rastatt, Germany) double lumen cannula-based hybrid ECMO to add a venovenous (VV) blood flow into the pulmonary circulation onto the existing VA ECMO circuit to increase oxygen saturation in the left ventricle and ascending aorta, mitigating heart/brain hypoxia...
May 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28497441/-cryptogenic-stroke-in-a-young-patient-with-heart-disease-and-kidney-failure
#20
B Oyanguren, R Segoviano, E Alegria, E Besada, M Gonzalez-Salaices, M Eimil-Ortiz, C Lopez de Silanes
INTRODUCTION: Fabry's disease is an infrequent metabolic pathology linked to the X chromosome which causes a wide variety of signs and symptoms. CASE REPORT: A 39-year-old male who was admitted to our stroke unit with right-side hemiparesis (1 + 0) and dysarthria (1). The score on the National Institute of Health Stroke Scale was 2. The patient presented angiokeratomas in both thighs. A computerised axial tomography scan of the head showed left thalamic acute infarction...
May 16, 2017: Revista de Neurologia
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