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https://www.readbyqxmd.com/read/29475200/cardiovascular-associations-with-abnormal-brain-magnetic-resonance-imaging-in-neonates-with-hypoxic-ischemic-encephalopathy-undergoing-therapeutic-hypothermia-and-rewarming
#1
Kiran S More, Pankaj Sakhuja, Regan E Giesinger, Joseph Y Ting, Matthew Keyzers, Jesal N Sheth, Anie Lapointe, Amish Jain, Aideen M Moore, Steven P Miller, Patrick J McNamara
OBJECTIVE:  This article compares hemodynamic characteristics of neonates with hypoxic ischemic encephalopathy (HIE) receiving therapeutic hypothermia (TH) with normal versus abnormal brain magnetic resonance imaging (MRI). METHODS:  Serial echocardiography (echo) was performed within 24 hours, after 48 to 72 hours of cooling, within 24 hours of normothermia, and after starting feeds. Pulmonary hemodynamics, cardiac output, and ventricular function were evaluated...
February 23, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29473101/cardiac-function-assessments-in-left-bochdalek-s-hernia-clinical-relevance
#2
Arvind Sehgal, Kenneth Tan, Peter Ferguson
The objectives of this study were to characterize peri-operative echocardiographic (ECHO) assessments of right ventricular (RV) function and pulmonary hypertension (PH) and ascertain correlation with clinical outcomes in infants with left Bochdalek's hernia (LBH). This retrospective study in a quaternary neonatal intensive care unit involved electronic database search for infants with LBH during January 2009 to July 2017. Demographics, outcomes, and ECHO parameters were accessed from archived databases. Thirty-one infants with mean gestational age and birthweight (BW) 38...
February 23, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29472302/quantification-of-intracranial-aneurysm-volume-pulsation-with-7t-mri
#3
R Kleinloog, J J M Zwanenburg, B Schermers, E Krikken, Y M Ruigrok, P R Luijten, F Visser, L Regli, G J E Rinkel, B H Verweij
BACKGROUND AND PURPOSE: Aneurysm volume pulsation is a potential predictor of intracranial aneurysm rupture. We evaluated whether 7T MR imaging can quantify aneurysm volume pulsation. MATERIALS AND METHODS: In Stage I of the study, 10 unruptured aneurysms in 9 patients were studied using a high-resolution (0.6-mm, isotropic) 3D gradient-echo sequence with cardiac gating. Semiautomatic segmentation was used to measure aneurysm volume (in cubic millimeters) per cardiac phase...
February 22, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29470624/measuring-liver-t2-and-cardiac-t2-in-a-single-acquisition
#4
Suraj D Serai, Andrew T Trout, Robert J Fleck, Charles T Quinn, Jonathan R Dillman
PURPOSE: The purpose of this study is determine if both liver T2* and cardiac T2* can be measured on a single breath-hold acquisition. MATERIALS AND METHODS: For this IRB-approved retrospective study, 137 patients with dedicated Cardiac MRI and Liver MRI examinations obtained sequentially on 1.5T scanners and on the same day were included for analysis. Both the cardiac and liver MRI examinations utilized GRE sequences for quantification of tissue iron. Specifically, T2* was measured using an 8-echo, multi-echo gradient echo single breath-hold sequence...
February 22, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29467359/evaluation-of-a-portable-doppler-ultrasound-gating-device-for-fetal-cardiac-mr-imaging-initial-results-at-1-5t-and-3t
#5
Fabian Kording, Bjoern P Schoennagel, Manuela Tavares de Sousa, Kai Fehrs, Gerhard Adam, Jin Yamamura, Christian Ruprecht
PURPOSE: Fetal cardiac MRI has the potential to play an important role in the assessment of fetal cardiac pathologies, but it is up to now not feasible due to a missing gating method. The purpose of this work was the evaluation of Doppler ultrasound (DUS) for external fetal cardiac gating with regard to compatibility, functionality, and reliability. Preliminary results were assessed performing fetal cardiac MRI. METHODS: An MRI conditional DUS device was developed to obtain a gating signal from the fetal heart...
February 21, 2018: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29467047/myocardial-stress-perfusion-magnetic-resonance-in-children-with-hypertrophic-cardiomyopathy
#6
Lazaro E Hernandez
BACKGROUND: Microvascular dysfunction in hypertrophic cardiomyopathy has been associated with poor clinical outcome. Several studies have demonstrated a reduced perfusion reserve proportional to the magnitude of the hypertrophy. We investigated the utility of stress perfusion cardiac MRI to detect microvascular dysfunction in children with hypertrophic cardiomyopathy. METHODS: From January 2016 to January 2017, 13 patients, with a mean age of 15.3 years, with hypertrophic cardiomyopathy underwent regadenoson stress perfusion cardiac MRI (1...
February 22, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29466218/-structural-and-functional-properties-of-the-left-atrium-in-healthy-volunteers-and-patients-with-atrial-fibrillation-data-of-magnetic-resonance-imaging
#7
O V Stukalova, N A Mironova, S P Golitsyn, O P Aparina, D V Parkhomenko, E Y Strazdenj, S K Ternovoy
BACKGROUND: in the recent years, there has been an increasing number of publications postulating that data on left atrial (LA) structure obtained by late gadolinium enhancement magnetic resonance imaging (LGE MRI) can improve the management of patients with atrial fibrillation (AF). At the same time, similar data regarding healthy LA myocardium is limited. AIM: to assess structural and functional properties of LA in healthy volunteers (HV) using cardiac magnetic resonance (CMR) (including LGE MRI); to compare these properties in patients with AF and HV...
September 2017: Kardiologiia
https://www.readbyqxmd.com/read/29465497/effects-of-%C3%AE-blockers-on-maximal-heart-rate-prediction-equations-in-a-cardiac-population
#8
Elizabeth Godlasky, Trisha Hoffman, Sonya Weber-Peters, Richard Bradford, Nathan Miller, Allen R Kunselman, Mary E J Lott
PURPOSE: To derive specific maximal heart rate (HRmax) prediction equations for a coronary artery disease (CAD) population based upon status of β-blocker (BB) therapy and to compare these to prior HRmax equations (Fox and Brawner-specific for CAD). METHODS: We retrospectively reviewed stress echocardiogram treadmill tests in patients with CAD, dividing subjects into 3 groups based upon BB use on test day: not prescribed BB therapy (no BB group; n = 110); held for 12 to 24 hr prior (held BB group; n = 155); and continued taking (took BB group; n = 72)...
March 2018: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/29464985/comparison-of-phase-contrast-mr-and-flow-simulations-for-the-study-of-csf-dynamics-in-the-cervical-spine
#9
Erika Kristina Lindstrøm, Jakob Schreiner, Geir Andre Ringstad, Victor Haughton, Per Kristian Eide, Kent-Andre Mardal
Background Investigators use phase-contrast magnetic resonance (PC-MR) and computational fluid dynamics (CFD) to assess cerebrospinal fluid dynamics. We compared qualitative and quantitative results from the two methods. Methods Four volunteers were imaged with a heavily T2-weighted volume gradient echo scan of the brain and cervical spine at 3T and with PC-MR. Velocities were calculated from PC-MR for each phase in the cardiac cycle. Mean pressure gradients in the PC-MR acquisition through the cardiac cycle were calculated with the Navier-Stokes equations...
January 1, 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29463283/neonatal-diagnosis-of-isolated-absence-of-the-right-pulmonary-artery-a-case-report-and-review-of-the-literature
#10
Akamin Raymond, Ettore Pedretti, Giuseppina Privitera, Cristina Cicero, Giacomo Biasucci
BACKGROUND: Unilateral absence of the pulmonary artery (UAPA) is a rare congenital malformation often associated with other cardiac anomalies; however it may occur as an isolated lesion. Isolated absence of the right pulmonary artery is twice more frequent than that of the left pulmonary artery. Patients with isolated UAPA are usually asymptomatic at birth; thereafter they may develop a progression of symptoms such as exercise intolerance, dyspnea, chest pain, hemoptysis and recurrent pulmonary infections...
February 20, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29460490/evaluation-of-sex-differences-in-the-relationship-between-diastolic-dysfunction-and-thromboembolism-using-propensity-score-analysis
#11
Mi-Na Kim, Jae-Min Shim, Jong-Il Choi, Seong-Mi Park, Young Hoon Kim, Wan Joo Shim
BACKGROUND: Female sex is a risk factor for thromboembolism (TE) in atrial fibrillation (AF); however, the underlying mechanisms are unclear. We postulated that left ventricular (LV) diastolic dysfunction (LVDD) could be associated with increased thromboembolic risk in women. METHODS: From a retrospective cohort, 158 patients (female : male = 79:79) with nonvalvular AF were propensity score-matched for age, presence of diabetes, hypertension, coronary artery disease, congestive heart failure, embolic history, AF type, and AF duration...
February 20, 2018: Echocardiography
https://www.readbyqxmd.com/read/29460457/aberrant-migration-and-surgical-removal-of-a-heartworm-dirofilaria-immitis-from-the-femoral-artery-of-a-cat
#12
Maureen S Oldach, Catherine T Gunther-Harrington, Ingrid M Balsa, Ehren M McLarty, Kyle A Wakeman, Kathryn L Phillips, Juhana Honkavaara, Lance C Visser, Joshua A Stern
A cat was evaluated for an acute-onset of right pelvic limb paresis. Thoracic radiographs revealed normal cardiac size and tortuous pulmonary arteries. Abdominal ultrasound identified a heartworm (HW) extending from the caudal abdominal aorta into the right external iliac artery and right femoral artery. The cat was HW-antigen positive. Echocardiography revealed a HW within the right branch of the main pulmonary artery and evidence of pulmonary hypertension. An agitated-saline contrast echocardiogram revealed a small right to left intracardiac shunt at the level of the atria...
February 20, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29460124/accuracy-of-cardiac-ct-in-evaluating-severity-of-left-atrial-appendage-spontaneous-echo-contrast-comparison-with-transesophageal-echocardiography
#13
Chun-Li He, Zhao-Qian Wang, Chong-Fu Jia, Tao Cong, Liang Zhang, Zhi-Qiang Yang, Xi-Xia Sun, Si-Yao Sun
To investigate the capacity of biphasic cardiac CT (CCT) for qualitative and quantitative evaluation of different grades of left atrial appendage spontaneous echo contrast (LAASEC). The study included 267 inpatients with confirmed atrial fibrillation who underwent both CCT and transesophageal echocardiography (TEE). CT numbers for LAA, ascending aorta (AA), and left atrium (LA) were identified, and ROC curves for LAA, LAA/AA, and LAA/LA were plotted. With TEE as the standard, the sensitivity, specificity, PPV, NPV, and accuracy of CCT for LAASEC grade ≥ 1 were 60...
February 19, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29458384/cardiovascular-cine-imaging-and-flow-evaluation-using-fast-interrupted-steady-state-fiss-magnetic-resonance
#14
Robert R Edelman, Ali Serhal, Amit Pursnani, Jianing Pang, Ioannis Koktzoglou
BACKGROUND: Existing cine imaging techniques rely on balanced steady-state free precession (bSSFP) or spoiled gradient-echo readouts, each of which has limitations. For instance, with bSSFP, artifacts occur from rapid through-plane flow and off-resonance effects. We hypothesized that a prototype cine technique, radial fast interrupted steady-state (FISS), could overcome these limitations. The technique was compared with standard cine bSSFP for cardiac function, coronary artery conspicuity, and aortic valve morphology...
February 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29455791/criss-cross-heart-transthoracic-echocardiographic-features
#15
Devi Manuel, Gopal Ghosh, George Joseph, Anandaroop Lahiri, Paul V George
OBJECTIVE: To study the echocardiographic features of criss-cross heart (CCH), a congenital cardiac anomaly characterized by crossed ventricular inflow streams, in Indian patients. METHODS: In this retrospective observational study, all pediatric echocardiograms performed in a single tertiary care institution in South India over a three-year period were scrutinized for a diagnosis of CCH. Demographic, clinical and echocardiographic data were collected from patients' medical records and echocardiographic database...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29453476/postoperative-outcome-in-patients-with-pulmonary-hypertension-undergoing-elective-non-cardiac-surgery
#16
Vikas Pathak, Kriti Suwal
INTRODUCTION: The impact of pulmonary artery hypertension on post-operative outcome in elective, non-cardiac surgery is incompletely understood. This study was designed to evaluate the post-operative outcome of patients undergoing elective, non-cardiac surgery with and without pulmonary hypertension. METHODS: The study was conducted in an inner-city hospital in Bronx, New York. A retrospective chart review was conducted on all patients who underwent elective, non- cardiac surgery from January 2000 to December 2010 and had echocardiogram within 30 days of surgery...
October 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/29452989/prognostic-role-of-cardiac-calcifications-in-primary-prevention-a-powerful-marker-of-adverse-outcome-highly-dependent-on-underlying-cardiac-rhythm
#17
Carmine Mazzone, Gianni Cioffi, Concetta Di Nora, Giulia Barbati, Federica Guidetti, Pompilio Faggiano, Nicola Gaibazzi, Giorgio Faganello, Endria Casanova Borca, Andrea Di Lenarda
BACKGROUND: Increasing evidence exists regarding calcium detected in aortic cusps and/or mitral annulus (AOC_MAC) at transthoracic echocardiogram as a predictor of cardiovascular (CV) events and mortality. PURPOSE: To verify whether AOC_MAC has a prognostic role in the setting of primary prevention independently of the presence of atrial fibrillation (AF). METHODS: All subjects consecutively referred from January 2011 to October 2014 to the Cardiovascular Centre for CV risk assessment in primary prevention were selected...
January 31, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29440826/normal-reference-ranges-for-cardiac-valve-cross-sectional-areas-in-preterm-infants
#18
Lulu Abushaban, Mariappa Thinakar Vel, Jebaraj Rathinasamy, Prem N Sharma
Objective: To establish normal reference ranges for cardiac valve crosssectional areas (CSAs) in preterm infants and their correlation with gestational age, body weight, and chronological age. Materials and Methods: In a prospective study, 268 preterm babies fulfilling the criteria for inclusion were examined. Echocardiograms were performed to measure aortic, pulmonary, mitral, and tricuspid valve CSAs on 0-6 day (s) of life and at weekly intervals until they reached 36 weeks...
January 2018: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/29440625/safety-and-feasibility-of-a-novel-active-fixation-temporary-pacing-lead
#19
Mark Webster, Sanjeevan Pasupati, Nigel Lever, Martin Stiles
OBJECTIVE: This first-in-human study evaluated the safety and technical feasibility of the Tempo temporary cardiac pacing lead (BioTrace Medical), which includes a novel fixation mechanism and soft tip. BACKGROUND: Complications of temporary pacing leads include dislodgment, arrhythmias, and ventricular perforation. Temporary pacing applications have increased with transcatheter aortic valve replacement (TAVR) growth, for rapid pacing during balloon valvuloplasty (BAV) and valve deployment, and for periprocedural bradyarrhythmia support...
February 15, 2018: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29440008/novel-%C3%AE-actin-gene-mutation-p-ala21val-causing-familial-hypertrophic-cardiomyopathy-myocardial-noncompaction-and-transmural-crypts-clinical-pathologic-correlation
#20
Andrea Frustaci, Alessandro De Luca, Valentina Guida, Tommaso Biagini, Tommaso Mazza, Carlo Gaudio, Claudio Letizia, Matteo Antonio Russo, Nicola Galea, Cristina Chimenti
BACKGROUND: Mutations of α-actin gene (ACTC1) have been phenotypically related to various cardiac anomalies, including hypertrophic cardiomyopathy and dilated cardiomyopathy and left ventricular (LV) myocardial noncompaction. A novel ACTC mutation is reported as cosegregating for familial hypertrophic cardiomyopathy and LV myocardial noncompaction with transmural crypts. METHODS AND RESULTS: In an Italian family of 7 subjects, 4 aged 10 (II-1), 14 (II-2), 43 (I-4) and 46 years (I-5), presenting abnormal ECG changes, dyspnea and palpitation (II-2, I-4, and I-5), and recurrent cerebral ischemic attack (I-5), underwent 2-dimensional echo, cardiac magnetic resonance, Holter monitoring, and next-generation sequencing gene analysis...
February 10, 2018: Journal of the American Heart Association
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