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https://www.readbyqxmd.com/read/28742596/advances-in-fetal-cardiac-imaging
#1
Elena Sinkovskaya
This review presents a detailed discussion on recent trends in fetal cardiac imaging. Ultrasound technique which are most useful for clinical practice today and will likely change the approach to cardiac evaluation in the future are presented.
September 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742590/failed-intrauterine-pregnancy-what-is-a-failed-pregnancy-what-is-not
#2
Timothy P Canavan
Pregnancy failure is defined as a lack of sonographic evidence of current or expected viability. Technologic advances in ultrasound imaging continue to redefine diagnostic criteria of pregnancy failure or success. When evaluating a pregnancy, the first step is an assessment of maternal risk factors for failure. Imaging clues such as an empty gestational sac measuring ≥25 mm or an embryo ≥7 mm without cardiac activity are reliable signs of pregnancy failure, whereas embryonic growth <1 mm/d is not. Combinations of sonographic findings can be used for a more accurate prediction of pregnancy success or failure...
September 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742031/patient-specific-left-ventricular-flow-simulations-from-transthoracic-echocardiography-robustness-evaluation-and-validation-against-ultrasound-doppler-and-magnetic-resonance-imaging
#3
David Larsson, Jeannette H Spuhler, Sven Petersson, Tim Nordenfur, Massimiliano Colarieti-Tosti, Johan Hoffman, Reidar Winter, Matilda Larsson
The combination of medical imaging with computational fluid dynamics (CFD) has enabled the study of 3D blood flow on a patient-specific level. However, with models based on gated high-resolution data, the study of transient flows, and any model implementation into routine cardiac care, is challenging. The present paper presents a novel pathway for patient-specific CFD modelling of the left ventricle (LV), using 4D transthoracic echocardiography (TTE) as input modality. To evaluate the clinical usability, two sub-studies were performed...
July 21, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28741751/assessment-of-diastolic-function-of-normal-fetal-heart-using-the-dual-gate-doppler-method
#4
Mayumi Takano, Masahiko Nakata, Sumito Nagasaki, Rei Ueyama, Mineto Morita
OBJECTIVES: The ratio of mitral peak early diastolic filling to early diastolic mitral annular velocity (E/e') reflects diastolic cardiac function in adults. The Dual gate Doppler (DD) method enables measurements of E/e' in the same heartbeat. This study was designed to assess the utility of the DD method for measurement of fetal E/e', and to determine reference ranges for normal fetuses. METHODS: This prospective study comprised normal singleton pregnancies between 16 and 36 weeks of gestational age (GA)...
July 25, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28741295/early-segmental-relaxation-abnormalities-in-hypertrophic-cardiomyopathy-for-differential-diagnostic-of-patients-with-left-ventricular-hypertrophy
#5
Christian Voigt, Julia Münch, Maxim Avanesov, Anna Suling, Katrin Witzel, Gunnar Lund, Monica Patten
BACKGROUND: Hypertrophic cardiomyopathy (HCM) is characterized by asymmetric left ventricular hypertrophy (LVH). However, clinical signs can be subtle and differentiation from other causes of LVH is challenging. HYPOTHESIS: As diastolic dysfunction (DD) is an early sign in HCM, we aimed to find regional changes in relaxation pattern for differentiation from other entities of LVH. METHODS: In 148 patients (81 HCM, 55 arterial hypertension (AHT), 12 Fabry disease) and 63 healthy controls, relaxation patterns were assessed using regional tissue Doppler imaging...
July 24, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28741094/systolic-function-of-right-ventricular-outflow-tract-is-a-better-predictor-to-exercise-performance-after-pulmonary-valve-replacement-in-tetralogy-of-fallot
#6
Jianhua Li, Shuhua Luo, Fei Liu, Qi An
Debate on the proper timing of pulmonary valve replacement (PVR) after repair of tetralogy of Fallot is still continuing. We aim to clarify how the different components of right ventricle (RV) changed with relieved volume overload in the remodeling process after pulmonary valve replacement and gain a clear idea of the relationship between different right ventricle components function and exercise capacity after PVR in these patients. The medical records and results of cardiac magnetic resonance imaging and cardiopulmonary exercise testing of 25 consecutive eligible patients were reviewed...
July 24, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28741057/the-role-of-angiography-in-the-congruence-of-cardiovascular-measurements-between-autopsy-and-postmortem-imaging
#7
Renaud Troxler, Costin Minoiu, Paul Vaucher, Katarzyna Michaud, Francesco Doenz, Kewin Ducrot, Silke Grabherr
INTRODUCTION: Postmortem CT angiography is the method of choice for the postmortem imaging investigations of the cardiovascular (CV) system. However, autopsy still remains the gold standard for CV measurement. Nevertheless, there are not any studies on CV measurements on the multi-phase postmortem angiography (MPMCTA) which includes comparisons with autopsy. Therefore, the aim of this study is to compare CV measurements between the native CT scan and the three phases of the MPMCTA to find out which of these modalities correlate the best with autopsy measurements...
July 24, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28740835/severe-pulmonary-hypertension-due-to-combined-pulmonary-fibrosis-and-emphysema-another-cause-of-death-among-smokers
#8
REVIEW
André Carramenha de Góes Hirano, Eduardo Pelegrineti Targueta, Fernando Peixoto Ferraz de Campos, João Augusto Dos Santos Martines, Dafne Andrade, Silvana Maria Lovisolo, Aloisio Felipe-Silva
In 2005, the combined pulmonary fibrosis and emphysema (CPFE) was first defined as a distinct entity, which comprised centrilobular or paraseptal emphysema in the upper pulmonary lobes, and fibrosis in the lower lobes accompanied by reduced diffused capacity of the lungs for carbon monoxide (DLCO). Recently, the fibrosis associated with the connective tissue disease was also included in the diagnosis of CPFE, although the exposure to tobacco, coal, welding, agrochemical compounds, and tire manufacturing are the most frequent causative agents...
April 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28740641/lung-ultrasound-a-new-basic-easy-multifunction-imaging-diagnostic-tool-in-children-undergoing-pediatric-cardiac-surgery
#9
EDITORIAL
Massimiliano Cantinotti, Raffaele Giordano, Israel Valverde
No abstract text is available yet for this article.
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28740468/evolution-of-precision-medicine-and-surgical-strategies-for-bicuspid-aortic-valve-associated-aortopathy
#10
Ali Fatehi Hassanabad, Alex J Barker, David Guzzardi, Michael Markl, Chris Malaisrie, Patrick M McCarthy, Paul W M Fedak
Bicuspid aortic valve (BAV) is a common congenital cardiac malformation affecting 1-2% of people. BAV results from fusion of two adjacent aortic valve cusps, and is associated with dilatation of the aorta, known as bicuspid valve associated aortopathy. Bicuspid valve aortopathy is progressive and associated with catastrophic clinical events, such as aortic dissection and rupture. Therefore, frequent monitoring and early intervention with prophylactic surgical resection of the proximal aorta is often recommended...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28739515/the-trigeminocardiac-reflex-during-the-anterior-transpetrosal-approach
#11
Shunsuke Shibao, Karam Kenawy, Hamid Borghei-Razavi, Kazunari Yoshida
BACKGROUND: The anterior transpetrosal approach (ATPA), during which the trigeminal nerve is manipulated, has a risk of eliciting the trigemino-cardiac reflex (TCR). The objective of this study was to assess the risk of the TCR during the ATPA. METHODS: The surgical records of 92 patients who had surgical treatment via the ATPA at the Keio university hospital between December 2005 and June 2015 were retrospectively analyzed. They were divided into two groups on the basis of the occurrence of the TCR during surgery, and their clinical and tumor characteristics were compared...
July 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28739313/cardiac-amyloidosis-an-update-on-pathophysiology-diagnosis-and-treatment
#12
REVIEW
Omar K Siddiqi, Frederick L Ruberg
The amyloidoses are a group of systemic diseases characterized by organ deposition of misfolded protein fragments of diverse origins. The natural history of the disease, involvement of other organs, and treatment options vary significantly based on the protein of origin. In AL amyloidosis, amyloid protein is derived from immunoglobulin light chains, and most often involves the kidneys and the heart. ATTR amyloidosis is categorized as mutant or wild-type depending on the genetic sequence of the transthyretin (TTR) protein produced by the liver...
July 13, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28739084/the-repeatability-and-characteristics-of-right-ventricular-longitudinal-strain-imaging-by-speckle-tracking-echocardiography-in-healthy-dogs
#13
T Morita, K Nakamura, T Osuga, N Yokoyama, N Khoirun, K Morishita, N Sasaki, H Ohta, M Takiguchi
INTRODUCTION: To assess the repeatability and characteristics of echocardiographic indices of the right ventricular (RV) function derived from speckle-tracking echocardiography. ANIMALS: Fourteen laboratory Beagles and 103 privately owned dogs without cardiac disease were involved in this study. MATERIALS AND METHODS: Right ventricular longitudinal strain, strain rate, and a strain-related index for assessing RV dyssynchrony derived from speckle-tracking echocardiography were obtained by two different observers using five Beagles...
July 21, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28739034/evaluation-of-resting-cardiac-power-output-as-a-prognostic-factor-in-patients-with-advanced-heart-failure
#14
Omer Yildiz, Gamze Aslan, Zumrut T Demirozu, Cemal Deniz Yenigun, Nuran Yazicioglu
If the heart is represented by a hydraulic pump, cardiac power represents the hydraulic function of the heart. Cardiac pump function is frequently determined through left ventricular ejection fraction using imaging. This study aims to validate resting cardiac power output (CPO) as a predictive biomarker in patients with advanced heart failure (HF). One hundred and seventy-two patients with HF severe enough to warrant cardiac transplantation were retrospectively reviewed at a single tertiary care institution between September 2010 and July 2013...
June 28, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28738862/impact-of-ischemic-preconditioning-on-surgical-treatment-of-brain-tumors-a-single-center-randomized-double-blind-controlled-trial
#15
Arthur H A Sales, Melanie Barz, Stefanie Bette, Benedikt Wiestler, Yu-Mi Ryang, Bernhard Meyer, Martin Bretschneider, Florian Ringel, Jens Gempt
BACKGROUND: Postoperative ischemia is a frequent phenomenon in patients with brain tumors and is associated with postoperative neurological deficits and impaired overall survival. Particularly in the field of cardiac and vascular surgery, the application of a brief ischemic stimulus not only in the target organ but also in remote tissues can prevent subsequent ischemic damage. We hypothesized that remote ischemic preconditioning (rIPC) in patients with brain tumors undergoing elective surgical resection reduces the incidence of postoperative ischemic tissue damage and its consequences...
July 25, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28738781/the-value-of-a-new-cardiac-magnetic-resonance-imaging-protocol-in-myocardial-infarction-with-non-obstructive-coronary-arteries-minoca-a-case-control-study-using-historical-controls-from-a-previous-study-with-similar-inclusion-criteria
#16
Per Tornvall, E B Brolin, K Caidahl, K Cederlund, O Collste, M Daniel, C Ekenbäck, J Jensen, S Y-Hassan, L Henareh, C Hofman-Bang, P Lyngå, E Maret, N Sarkar, J Spaak, M Sundqvist, P Sörensson, M Ugander, S Agewall
BACKGROUND: Myocardial Infarction with Non-Obstructive Coronary Arteries (MINOCA) is common with a prevalence of 6% of all patients fulfilling the diagnosis of myocardial infarction. MINOCA should be considered a working diagnosis. Cardiac Magnetic Resonance (CMR) imaging has recently been suggested to be of great value to determine the cause behind MINOCA. The objectives of this paper are to describe the rationale behind the second Stockholm Myocardial Infarction with Normal Coronaries (SMINC-2) study and to discuss the protocol for investigation of MINOCA patients in the light of the recently published position paper from the European Society of Cardiology...
July 24, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28738778/cardiac-profile-of-asymptomatic-children-with-becker-and-duchenne-muscular-dystrophy-under-treatment-with-steroids-and-with-without-perindopril
#17
Sophie Mavrogeni, Aikaterini Giannakopoulou, Antigoni Papavasiliou, George Markousis-Mavrogenis, Roser Pons, Evangelos Karanasios, Michel Noutsias, Genovefa Kolovou, George Papadopoulos
BACKGROUND: To evaluate cardiovascular function in boys with Duchenne (DMD) and Becker (BMD) muscular dystrophy, using cardiac magnetic resonance (CMR). METHODS: This is a single point cross sectional study of twenty-four boys with genetically ascertained DMD, and 10 with BMD, aged 10.5 ± 1.5 years (range 9-13), were prospectively evaluated by a 1.5 T system and compared with those of age-sex matched controls. The DMD patients were divided in 2 groups. Group A (N = 12) were under treatment with both deflazacort and perindopril, while Group B (n = 12) were under treatment with deflazacort, only...
July 24, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28738486/-association-between-collateral-circulation-and-myocardial-viability-evaluated-by-cardiac-magnetic-resonance-imaging-in-patients-with-coronary-artery-chronic-total-occlusion
#18
J N Li, L J Zhang, Y He, Y L Chen, R C Huang, S Z Lyu, X T Song
Objective: Late gadolinium enhancement(LGE) cardiac magnetic resonance imaging(CMR) was used to evaluate the myocardial viability of chronic total occlusion(CTO) in patients with coronary heart disease and to observe the relationship between collateral circulation and myocardium viability in these patients. Methods: This retrospective study included 40 patients with CTO diagnosed by invasive coronary angiography (CAG) from September 2015 to June 2016 in our department, all patients performed CMR examination within one week after CAG...
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28737245/exteroceptive-stimuli-override-interoceptive-state-in-reaction-time-control
#19
Xiao Yang, J Richard Jennings, Bruce H Friedman
The processing of reaction time (RT) stimulus is modulated by its timing relative to the cardiac cycle. RT stimulus processing is also influenced by task-irrelevant stimuli: a sensory stimulus speeds RT when it accompanies a cue to react in another sensory modality. Different theories have been proposed to explain this accessory stimulus effect (ASE). However, it is unclear whether the ASE interacts with the cardiac timing effect. In the present study, the relationship of the ASE, cardiac timing, and stimulus valence was examined...
July 24, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28736987/cardiac-stress-mri-evaluation-of-anomalous-aortic-origin-of-a-coronary-artery
#20
Cory Noel
Myocardial ischemia is an insult that is primarily thought of in an adult population. However, there are several congenital and acquired cardiac lesions that may lead to myocardial ischemia in a pediatric population. One of the prominent congenital lesions is anomalous aortic origin of a coronary artery (AAOCA). Anomalous aortic origin of a coronary artery is one of the leading causes sudden cardiac death in pediatric and young adult patients, and thus the assessment of myocardial perfusion is of the utmost importance...
July 24, 2017: Congenital Heart Disease
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