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Heart anatomy

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https://www.readbyqxmd.com/read/29458234/ultrasonographic-anatomy-of-reproductive-female-leopard-geckos-eublepharis-macularius
#1
Ophélie Cojean, Claire Vergneau-Grosset, Isabelle Masseau
Captive leopard geckos (Eublepharis macularius) often present to the exotic clinic for gastrointestinal impactions, follicular stasis, or dystocia. To our knowledge, normal ultrasonographic anatomy of these lizards has not been described. The objectives of this prospective, anatomic, analytical study were to develop ultrasound techniques for this species and to describe the normal sonographic anatomy of the head, coelomic cavity, and tail. Eleven, healthy, female leopard geckos were included. A linear array 13-18 MHz transducer was used...
February 19, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29458135/porcine-heart-interatrial-septum-anatomy
#2
Mateusz K Hołda, Mateusz Koziej, Katarzyna Piątek, Wiesława Klimek-Piotrowska
BACKGROUND: The left-sided atrial septal pouch (SP), a recently re-discovered anatomical structure within the human interatrial septum, has emerged as a possible source of thrombi formation and a trigger for atrial fibrillation, thereby potentially increasing the risk for ischemic stroke. In many studies, the swine interatrial septum has been used as model of the human heart. Also, possible new strategies and devices for management of the SPs may first be tested in this pig model. Therefore, in this study, we aimed to evaluate swine interatrial septum morphology and to compare it with the human analog, especially in the light of SP occurrence...
February 16, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29455772/prenatal-diagnosis-of-congenital-heart-disease-a-review-of-current-knowledge
#3
REVIEW
Nathalie Jeanne Bravo-Valenzuela, Alberto Borges Peixoto, Edward Araujo Júnior
This article reviews important features to improve the diagnosis of congenital heart disease (CHD) by applying ultrasound in prenatal cardiac screening. As low and high-risk pregnancies for CHD are subject to routine obstetric ultrasound, the diagnosis of structural heart defects represents a challenge that involves a team of specialists and subspecialists on fetal ultrasonography. In this review, the images highlight normal anatomy of the heart as well as pathologic cases consistent with cardiac malposition and isomerism, septal defects, pulmonary stenosis/atresia, aortic malformations, hypoplastic left ventricle, conotruncal anomalies, tricuspid dysplasia, and Ebstein's anomaly, and univentricular heart, among other congenital cardiovascular defects...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29453808/three-dimensional-printing-in-congenital-heart-disease-a-systematic-review
#4
REVIEW
Ivan Lau, Zhonghua Sun
Three-dimensional (3D) printing has shown great promise in medicine with increasing reports in congenital heart disease (CHD). This systematic review aims to analyse the main clinical applications and accuracy of 3D printing in CHD, as well as to provide an overview of the software tools, time and costs associated with the generation of 3D printed heart models. A search of different databases was conducted to identify studies investigating the application of 3D printing in CHD. Studies based on patient's medical imaging datasets were included for analysis, while reports on in vitro phantom or review articles were excluded from the analysis...
February 17, 2018: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/29453132/malrotation-is-not-associated-with-adverse-outcomes-after-cardiac-surgery-in-patients-with-heterotaxy-syndrome
#5
Shelby C White, Peter N Dean, Eugene D McGahren, James J Gangemi, Jeffrey Vergales
BACKGROUND: Patients with heterotaxy syndrome (HS) often have asymptomatic malrotation. There is a lack of consensus regarding the management of these patients, particularly in patients with complex congenital heart disease (CHD). We sought to describe the prevalence of malrotation and incidence of volvulus in a population of patients with complex CHD and to identify the impact of malrotation on morbidity and mortality following cardiac surgery. METHODS: We performed a retrospective review of all patients with HS and complex CHD who required cardiac surgery in the first year of life at a single center between October 1995 and September 2015...
January 31, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29434632/conduction-abnormalities-after-transcatheter-aortic-valve-implantation
#6
REVIEW
Panagiotis Karyofillis, Anna Kostopoulou, Sofia Thomopoulou, Martha Habibi, Efthimios Livanis, George Karavolias, Vassilis Voudris
In the last few years, transcatheter aortic valve implantation (TAVI) has become an alternative procedure in patients with severe aortic stenosis and high risk for surgical aortic replacement. Due to the anatomic correlation between aortic valve structure and conduction system of the heart, one of the most common complications after TAVI is conduction system disturbances which including bundle branch block, complete heart block and need for permanent pacemaker implantation. Although these disturbances are usually not lethal, they may have a great influence on patients' state and long term-survival...
January 2018: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29432304/anemia-in-adolescents-and-young-adult-patients-with-congenital-heart-disease
#7
Juan L Rodríguez-Hernández, Fayna Rodríguez-González, Efrén Martínez-Quintana
INTRODUCTION: Despite anemia in acquired heart disease being a common problem, little is known in patients with congenital heart disease (CHD). METHODS: In total, 544 consecutive stable noncyanotic CHD patients were studied to determine demographic, clinical, and analytic parameters. Anemia was defined as a condition in which hemoglobin concentration was <13 g/dL in male individuals and <12 g/dL in female individuals. RESULTS: In total, 49 (9%) CHD patients had anemia...
February 9, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29421155/constant-morphological-patterns-in-the-hemolymph-vascular-system-of-crayfish-crustacea-decapoda
#8
Stephan Scholz, Stefan Richter, Christian S Wirkner
We present a study of the hemolymph vascular system of the marbled crayfish, Procambarus fallax f. virginalis, the only crayfish species known to be parthenogenetic. To identify potential evolutionary patterns, we compared data from a total of 48 specimens of P. fallax with 22 specimens of Orconectes limosus. Visualizations (2D and 3D) were carried out using a combination of classical and modern morphological techniques. Our data were compared to the existing literature. Like all Decapoda, both P. fallax and O...
February 5, 2018: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29420218/neighborhood-socioeconomic-status-and-outcomes-following-the-norwood-procedure-an-analysis-of-the-pediatric-heart-network-single-ventricle-reconstruction-trial-public-data-set
#9
Emily M Bucholz, Lynn A Sleeper, Jane W Newburger
BACKGROUND: Children with single ventricle heart disease require frequent interventions and follow-up. Low socioeconomic status (SES) may limit access to high-quality care and place these children at risk for poor long-term outcomes. METHODS AND RESULTS: Data from the SVR (Pediatric Heart Network Single Ventricle Reconstruction Trial Public Use) data set were used to examine the relationship of US neighborhood SES with 30-day and 1-year mortality or cardiac transplantation and length of stay among neonates undergoing the Norwood procedure (n=525)...
February 2, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29411679/pulmonary-atresia-with-an-intact-ventricular-septum-preoperative-physiology-imaging-and-management
#10
Sathish M Chikkabyrappa, Rohit S Loomba, Justin T Tretter
Pulmonary atresia with intact ventricular septum (PA-IVS) is a rare complex cyanotic congenital heart disease with heterogeneous morphological variation. Prenatal diagnosis allows for developing a safe plan for delivery and postnatal management. While transthoracic echocardiography allows for detailed delineation of the cardiac anatomy, additional imaging modalities such as computed tomography, magnetic resonance imaging, and catheterization may be necessary to further outline features of the cardiac anatomy, specifically coronary artery anatomy...
February 1, 2018: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29406939/cardiovascular-disease-in-women
#11
REVIEW
Elizabeth Anne Leonard, Robert James Marshall
Cardiovascular disease in women as a distinct disease entity is underappreciated relative to other female-specific diseases. A perception that cardiovascular disease affects men more commonly and a lack of understanding about the underlying pathophysiology of cardiovascular disease in women contribute to this phenomenon. Hormonal changes, pregnancy-related conditions, and cancer therapies have an impact on endothelial function, vascular anatomy, and myocardial contractility. Women with heart disease often present later, receive care not consistent with accepted guidelines, and have less access to diagnostic and therapeutic resources...
March 2018: Primary Care
https://www.readbyqxmd.com/read/29405126/evaluation-of-the-uf-nci-hybrid-computational-phantoms-for-use-in-organ-dosimetry-of-pediatric-patients-undergoing-fluoroscopically-guided-cardiac-procedures
#12
Emily L Marshall, David Borrego, Trung Tran, James C Fudge, Wesley E Bolch
Epidemiologic data demonstrate that pediatric patients face a higher relative risk of radiation induced cancers than their adult counterparts at equivalent exposures. Infants and children with congenital heart defects are a critical patient population exposed to ionizing radiation during life-saving procedures. These patients will likely incur numerous procedures throughout their lifespan, each time increasing their cumulative radiation absorbed dose. As continued improvements in long-term prognosis of congenital heart defect patients is achieved, a better understanding of organ radiation dose following treatment becomes increasingly vital...
February 6, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29403349/group-analysis-in-mne-python-of-evoked-responses-from-a-tactile-stimulation-paradigm-a-pipeline-for-reproducibility-at-every-step-of-processing-going-from-individual-sensor-space-representations-to-an-across-group-source-space-representation
#13
Lau M Andersen
An important aim of an analysis pipeline for magnetoencephalographic data is that it allows for the researcher spending maximal effort on making the statistical comparisons that will answer the questions of the researcher, while in turn spending minimal effort on the intricacies and machinery of the pipeline. I here present a set of functions and scripts that allow for setting up a clear, reproducible structure for separating raw and processed data into folders and files such that minimal effort can be spend on: (1) double-checking that the right input goes into the right functions; (2) making sure that output and intermediate steps can be accessed meaningfully; (3) applying operations efficiently across groups of subjects; (4) re-processing data if changes to any intermediate step are desirable...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29399969/role-of-virtual-reality-in-congenital-heart-disease
#14
Chin Siang Ong, Aravind Krishnan, Chen Yu Huang, Philip Spevak, Luca Vricella, Narutoshi Hibino, Juan R Garcia, Lasya Gaur
OBJECTIVE: New platforms for patient imaging present opportunities for improved surgical planning in complex congenital heart disease (CHD). Virtual reality (VR) allows for interactive manipulation of high-resolution representations of patient-specific imaging data, as a supplement to traditional 2D visualizations and 3D printed heart models. DESIGN: We present the novel use of VR for the presurgical planning of cardiac surgery in two infants with complex CHD to demonstrate interactive real-time views of complex intra and extracardiac anatomy...
February 5, 2018: Congenital Heart Disease
https://www.readbyqxmd.com/read/29397976/anatomy-of-the-mitral-subvalvular-apparatus
#15
Agata Krawczyk-Ożóg, Mateusz K Hołda, Filip Bolechała, Zbigniew Siudak, Danuta Sorysz, Dariusz Dudek, Wiesława Klimek-Piotrowska
OBJECTIVES: To characterize morphologic variations in the papillary muscles and tendinous cords of the left ventricle and ventricular zones of the mitral valve leaflets. METHODS: A total of 100 autopsied human hearts from healthy donors with classical mitral valve type were investigated. RESULTS: In 1 heart, only 1 group of papillary muscles was found, and in the remaining 99%, we could distinguish 2 groups of muscles: Superolateral (SLPM) and inferoseptal papillary muscle (ISPM) groups...
December 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29392098/patient-specific-coronary-blood-supply-territories-for-quantitative-perfusion-analysis
#16
Constantine Zakkaroff, John D Biglands, John P Greenwood, Sven Plein, Roger D Boyle, Aleksandra Radjenovic, Derek R Magee
Myocardial perfusion imaging, coupled with quantitative perfusion analysis, provides an important diagnostic tool for the identification of ischaemic heart disease caused by coronary stenoses. The accurate mapping between coronary anatomy and under-perfused areas of the myocardium is important for diagnosis and treatment. However, in the absence of the actual coronary anatomy during the reporting of perfusion images, areas of ischaemia are allocated to a coronary territory based on a population-derived 17-segment (American Heart Association) AHA model of coronary blood supply...
2018: Computer Methods in Biomechanics and Biomedical Engineering. Imaging & Visualization
https://www.readbyqxmd.com/read/29391034/vena-cava-anomalies-in-thoracic-surgery
#17
Andreina Pagini, Massimiliano Bassi, Daniele Diso, Michele Anzidei, Sara Mantovani, Camilla Poggi, Federico Venuta, Marco Anile
BACKGROUND: Vena cava anomalies are a rare group of anatomical variations due to an incorrect development of the superior or inferior vena cava during fetal life. They generally show no clinical relevance and the diagnosis is done due to the association with congenital heart diseases in most of cases. However, preoperative identification of these anomalies is mandatory for surgeons to proper surgical planning. If not recognized, lethal complications may occur, as already reported in literature...
February 1, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29366576/redefinition-of-tricuspid-valve-structures-for-successful-ring-annuloplasty
#18
Noriyasu Kawada, Hirokuni Naganuma, Koichi Muramatsu, Hatsue Ishibashi-Ueda, Ko Bando, Kazuhiro Hashimoto
BACKGROUND: Although numerous reports have described suturing techniques for tricuspid annuloplasty, most studies were not based on a detailed anatomy of the tricuspid annulus. Thus, the definition of the tricuspid commissures remains unclear. This study aimed to clearly define the commissures and leaflets of the tricuspid valve and subvalvular structures, and to define a standard method for tricuspid annuloplasty. METHODS: In 27 normal heart specimens without cardiac disease, the tricuspid commissure was defined using indentations of the leaflets as a point, not an area, and the length of each tricuspid annulus was measured...
December 19, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29354961/-relationship-between-needling-layers-and-needling-sensations-in-acupuncture
#19
Decheng Chen
Based on the sancai (literally three talents referring to "earth", "human" and "heaven") and wuti (literally five organs referring to skin, muscle, vessel, tendon and bone, which correspond to five internal organs: lungs, spleen, heart, liver and kidney respectively) in Neijing (Internal Classic), as well as the tissue structure theory of modern anatomy, and in combination with the clinical practice of acupuncture by the author in the past over 30 years, it is proposed that four layers are divided in needling depth of acupuncture...
November 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29354172/transcatheter-aortic-valve-implantation-at-a-high-volume-center-the-bad-rothenfelde-experience
#20
Marek Kowalski, Cornelia Deutsch, Steffen Hofmann, Norbert Franz, Michael Billion, Abbas Ferdosi, Peter Bramlage, Guram Imnadze, Henning Warnecke
Introduction: The "transfemoral (TF) first" approach to access route selection in transcatheter aortic valve implantation (TAVI) is popular; however, the risk of major vascular complications is substantial. The "best for TF" approach identifies only the patients with ideal anatomy for TF-TAVI, potentially minimizing complications. Aim: To characterize the outcomes of patients undergoing TAVI at a large-volume site that employs this approach. Material and methods: Patients who underwent TAVI at the Bad Rothenfelde Heart Centre between 2008 and 2016 were consecutively enrolled...
December 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
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