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Pediatric Cardiology

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https://www.readbyqxmd.com/read/27913834/key-role-of-pacing-site-as-determinant-factor-of-exercise-testing-performance-in-pediatric-patients-with-chronic-ventricular-pacing
#1
Michel Cabrera Ortega, Hiram Tápanes Duamy, Dunia B Benítez Ramos
Chronic right ventricular (RV) apical pacing has been associated with deterioration of functional capacity and chronotropic incompetence during exercise testing in children. The effects of alternative pacing site on exercise performance in pediatric population remain unknown. We evaluated the influence of ventricular pacing site on exercise capacity in pediatric patients with complete congenital atrioventricular block requiring permanent pacemaker therapy. Sixty-four children paced from RV apex (n = 26), RV midseptum (n = 15) and left ventricular (LV) apex (n = 23) were studied cross-sectionally...
December 2, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27909753/six-minute-walk-test-as-a-predictor-for-outcome-in-children-with-dilated-cardiomyopathy-and-chronic-stable-heart-failure
#2
Susanna L den Boer, Daniël H K Flipse, Marijke H van der Meulen, Ad P C M Backx, Gideon J du Marchie Sarvaas, Arend D J Ten Harkel, Gabriëlle G van Iperen, Lukas A J Rammeloo, Ronald B Tanke, Willem A Helbing, Tim Takken, Michiel Dalinghaus
Cardiopulmonary exercise testing is an important tool to predict prognosis in children and adults with heart failure. A much less sophisticated exercise test is the 6 min walk test, which has been shown an independent predictor for morbidity and mortality in adults with heart failure. Therefore, we hypothesized that the 6 min walk test could be predictive for outcome in children with dilated cardiomyopathy. We prospectively included 49 children with dilated cardiomyopathy ≥6 years who performed a 6 min walk test...
December 1, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27909752/erratum-to-a-literature-review-of-the-pharmacokinetics-and-pharmacodynamics-of-dobutamine-in-neonates
#3
Liam Mahoney, Geetika Shah, David Crook, Hector Rojas-Anaya, Heike Rabe
No abstract text is available yet for this article.
December 1, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27900454/intact-imaging-of-human-heart-structure-using-x-ray-phase-contrast-tomography
#4
Yukihiro Kaneko, Gen Shinohara, Masato Hoshino, Hiroyuki Morishita, Kiyozo Morita, Yoshihiro Oshima, Masashi Takahashi, Naoto Yagi, Yutaka Okita, Takuro Tsukube
Structural examination of human heart specimens at the microscopic level is a prerequisite for understanding congenital heart diseases. It is desirable not to destroy or alter the properties of such specimens because of their scarcity. However, many of the currently available imaging techniques either destroy the specimen through sectioning or alter the chemical and mechanical properties of the specimen through staining and contrast agent injection. As a result, subsequent studies may not be possible. X-ray phase-contrast tomography is an imaging modality for biological soft tissues that does not destroy or alter the properties of the specimen...
November 30, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27900408/prevalence-and-risk-factors-for-pericardial-effusions-requiring-readmission-after-pediatric-cardiac-surgery
#5
Matthew D Elias, Andrew C Glatz, Matthew J O'Connor, Susan Schachtner, Chitra Ravishankar, Christoper E Mascio, Meryl S Cohen
Pericardial effusion (PE) may require readmission after cardiac surgery and has been associated with postoperative morbidity and mortality. We sought to identify the prevalence and risk factors for postoperative PE requiring readmission in children. A retrospective analysis of the Pediatric Health Information System database was performed between January 1, 2003, and September 30, 2014. All patients ≤18 years old who underwent cardiac surgery were identified by ICD-9 codes. Those readmitted within 1 year with an ICD-9 code for PE were identified...
November 30, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27888318/toward-improving-the-fetal-diagnosis-of-coarctation-of-the-aorta
#6
Meaghan Beattie, Shabnam Peyvandi, Suguna Ganesan, Anita Moon-Grady
Coarctation of the aorta (CoA) is the most common ductal-dependent lesion missed on neonatal exam screening. Prenatal diagnosis of CoA improves outcomes through early initiation of prostaglandin. Fetal echocardiographic parameters including 2D and Doppler findings have been studied as predictive measures for fetal diagnosis of CoA, but diagnosis rates remain variable. A comprehensive set of predictor variables was applied to fetuses suspected of CoA to analyze which parameters were associated with postnatal CoA...
November 25, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27885446/post-cardiotomy-rescue-extracorporeal-cardiopulmonary-resuscitation-in-neonates-with-single-ventricle-after-intractable-cardiac-arrest-attrition-after-hospital-discharge-and-predictors-of-outcome
#7
Anastasios C Polimenakos, Vincent Rizzo, Chawki F El-Zein, Michel N Ilbawi
Extracorporeal cardiopulmonary resuscitation (ECPR) in children with cardiac arrest refractory to conventional cardiopulmonary resuscitation (CPR) has been reported with encouraging results. We reviewed outcomes of neonates with functional single ventricle (FSV) surviving post-cardiotomy ECPR after hospital discharge. Fifty-eight patients who required post-cardiotomy extracorporeal membrane oxygenation (ECMO) since the introduction of our ECPR protocol (January 2007-December 2011) were identified. Forty-one were neonates...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27885445/limited-ventricular-preload-is-the-main-reason-for-reduced-stress-reserve-after-atrial-baffle-repair
#8
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/27885444/emergency-pacing-via-the-umbilical-vein-and-subsequent-permanent-pacemaker-implantation-in-a-neonate
#9
Xiao-Mei Li, Dong-Ya Zhang, Hong-Yin Li, Jun-Yi Wang, He Jiang, Guang-Zhi Jia, Hui Wu, Hai-Yan Ge
A dying neonate with congenital complete atrioventricular block underwent an emergency temporary pacing via the umbilical vein 1 h after birth. Implantation of a permanent epicardial pacemaker system was performed at the age of 10 days. During the follow-up period of 3 months, the child had been growing well with the VVIR pacemaker.
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27882424/influence-of-transplant-center-procedural-volume-on-survival-outcomes-of-heart-transplantation-for-children-bridged-with-mechanical-circulatory-support
#10
Alex Hsieh, Dmitry Tumin, Patrick I McConnell, Mark Galantowicz, Joseph D Tobias, Don Hayes
Transplant center expertise improves survival after heart transplant (HTx) but it is unknown whether center expertise ameliorates risk associated with mechanical circulatory support (MCS) bridge to transplantation. This study investigated whether center HTx volume reduced survival disparities among pediatric HTx patients bridged with extracorporeal membrane oxygenation (ECMO), left ventricular assist device (LVAD), or no MCS. Patients ≤18 years of age receiving first-time HTx between 2005 and 2015 were identified in the United Network of Organ Sharing registry...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27882423/cardio-ankle-vascular-index-cavi-and-plasma-transforming-growth-factor-%C3%AE-1-tgf-%C3%AE-1-level-correlate-with-aortopathy-in-adults-with-repaired-tetralogy-of-fallot
#11
Yumi Shiina, Koichiro Niwa
It is challenging to evaluate aortopathy in congenital heart disease using conventional investigations such as brachial-ankle pulse wave velocity (baPWV). Therefore, we evaluated the cardio-ankle vascular index (CAVI), a dimension of the ascending aorta and plasma transforming growth factor-β1 (TGF-β1) level, in order to find novel noninvasive parameters of aortopathy in adults with repaired tetralogy of Fallot (TOF). Prospectively, we enrolled 42 consecutive adults with TOF (28 patients with repaired TOF were not on ARB, 8 patients with repaired TOF on ARB, 6 patients with no repair or only palliative repair) and 20 age-matched healthy controls...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27882422/predictors-of-pharmacological-therapy-of-ectopic-atrial-tachycardia-in-children
#12
Haiyan Ge, Xiaomei Li, Haiju Liu, He Jiang
Ectopic atrial tachycardia (EAT) is a relatively common type of supraventricular tachycardia in the pediatric population, and it can be resistant to antiarrhythmic drugs and lead to tachycardia-induced cardiomyopathy (TIC) if not properly managed. The purpose of this study was to determine the predictors of the response to pharmacological therapy in children with EAT. From January 2009 to April 2014, 115 children were admitted to our hospital with a diagnosis of EAT and placed on antiarrhythmic drugs. We examined the clinical history, response to therapy, and follow-up of the children...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878634/relationship-between-habitual-exercise-and-performance-on-cardiopulmonary-exercise-testing-differs-between-children-with-single-and-biventricular-circulations
#13
Michael L O'Byrne, Sanyukta Desai, Megan Lane, Michael McBride, Stephen Paridon, Elizabeth Goldmuntz
Increasing habitual exercise has been associated with improved cardiopulmonary exercise testing (CPET) performance, specifically maximal oxygen consumption in children with operatively corrected congenital heart disease. This has not been studied in children following Fontan palliation, a population in whom CPET performance is dramatically diminished. A single-center cross-sectional study with prospective and retrospective data collection was performed that assessed habitual exercise preceding a clinically indicated CPET in children and adolescents with Fontan palliation, transposition of the great arteries following arterial switch operation (TGA), and normal cardiac anatomy without prior operation...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878633/cardiopulmonary-exercise-testing-in-fontan-patients-with-and-without-isomerism-heterotaxy-as-compared-to-patients-with-primary-ciliary-dyskinesia-and-subjects-with-structurally-normal-hearts
#14
Rohit S Loomba, Michael Danduran, Kim G Nielsen, Astrid M Ring, Joshua Kovach, Robert H Anderson
Isomerism, also known as heterotaxy, is a clinical entity that impacts multiple organ systems both anatomically and functionally. The airways and lungs are involved in a great number of these patients, leading to increased sinopulmonary symptoms, increased need for oxygenation, and increased postoperative ventilatory support. Additionally, these patients often have congenital heart disease requiring Fontan palliation. What has not been previously described, and is the focus of this study, is the results of cardiopulmonary exercise testing in those who have undergone Fontan palliation with and without isomerism...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878632/utility-of-echocardiography-in-the-assessment-of-left-ventricular-diastolic-function-and-restrictive-physiology-in-children-and-young-adults-with-restrictive-cardiomyopathy-a-comparative-echocardiography-catheterization-study
#15
Thomas D Ryan, Peace C Madueme, John L Jefferies, Erik C Michelfelder, Jeffrey A Towbin, Jessica G Woo, Rashmi D Sahay, Eileen C King, Roberta Brown, Ryan A Moore, Michelle A Grenier, Bryan H Goldstein
The aim of the study is to determine the utility of echocardiography in the assessment of diastolic function in children and young adults with restrictive cardiomyopathy (RCM). RCM is a rare disease with high mortality requiring frequent surveillance. Accurate, noninvasive echocardiographic measures of diastolic function may reduce the need for invasive catheterization. Single-center, prospective, observational study of pediatric and young adult RCM patients undergoing assessment of diastolic parameters by simultaneous transthoracic echocardiogram (TTE) and invasive catheterization...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878631/difference-in-risk-factors-for-subtypes-of-acute-cardiac-lesions-resulting-from-kawasaki-disease
#16
Maho Yamashita, Ryusuke Ae, Mayumi Yashiro, Yasuko Aoyama, Takashi Sano, Nobuko Makino, Yosikazu Nakamura
Few studies discuss the risk factors for acute cardiac lesions (within 30 days) resulting from Kawasaki disease (KD). We aimed to clarify the characteristics of patients with cardiac lesions within 30 days and determine the risk factors for acute cardiac lesion subtypes. Using the 23rd nationwide survey of KD in Japan, we analyzed data from patients with or without acute cardiac lesions resulting from KD (n = 31,380). We subdivided patients with acute cardiac lesions into three types: acute valvular lesions, coronary aneurysms, and giant coronary aneurysms (GCA), and calculated the odds ratios of potential risk factors for acute cardiac lesion subtypes...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878630/diagnostic-and-prognostic-value-of-plasma-levels-of-cardiac-myosin-binding-protein-c-as-a-novel-biomarker-in-heart-failure
#17
Doaa El Amrousy, Hossam Hodeib, Ghada Suliman, Nahed Hablas, Eman Ramadan Salama, Ahmed Esam
Heart failure (HF) has high morbidity and mortality in children. This study aimed to investigate the value of cardiac myosin binding protein-C (cMyBP-C) as a diagnostic and prognostic biomarker in children with heart failure. This study was a prospective case-control study that involved 50 children with acute HF and 25 healthy children of matched age and sex as a control group. cMyBP-C plasma levels were measured in patients with HF at the time of admission and 1 month after treatment. Echocardiographic assessment was done for all children...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878629/clinical-outcomes-in-pediatric-patients-hospitalized-with-fulminant-myocarditis-requiring-extracorporeal-membrane-oxygenation-a-meta-analysis
#18
REVIEW
Haolan Xiong, Bingqing Xia, Jingyu Zhu, Binfei Li, Wenqi Huang
We conducted a meta-analysis to provide the survival rates for pediatric patients hospitalized with fulminant myocarditis requiring ECMO. The literature search was conducted using Embase, PubMed, MEDLINE and Elsevier for studies published before April 1, 2016. We focus on survival rates for pediatric patients hospitalized with fulminant myocarditis requiring ECMO, and studies that reported only on adult patients were excluded. Summary of the survival rates was obtained using fixed-effect or random-effect meta-analysis which determined by I (2)...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878628/global-deformation-parameters-response-to-exercise-in-adolescents-with-repaired-tetralogy-of-fallot
#19
Timur Mese, Baris Guven, Murat Muhtar Yilmazer, Mustafa Demirol, Şenay Çoban, Cem Karadeniz
Exercise stress echocardiography is rarely used in the follow-up of children with congenital heart disease following surgical repair. There are no data on global longitudinal strain (GLS) and global circumferential strain (GCS) during exercise in adolescents with repaired tetralogy of Fallot (TOF). The purpose of this prospective study was to investigate GLS and GCS using speckle tracking two-dimensional echocardiography (2D-STE) at rest and during exercise in adolescents with repaired TOF. Twenty patients with repaired TOF and 20 controls were included...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878627/right-ventricular-dysfunction-as-an-echocardiographic-measure-of-acute-rejection-following-heart-transplantation-in-children
#20
Sanjeev Aggarwal, Jennifer Blake, Swati Sehgal
Noninvasive biomarkers of acute allograft rejection (AAR) following orthotopic heart transplantation (OHT) are needed. The aim of this study was to investigate the accuracy of echocardiographic (ECHO) right ventricular (RV) global functional and resistance indices in the detection of AAR. This retrospective chart review included children with biopsy-proven AAR (grade ≥ 2R cellular or CD4 + antibody-mediated rejection) following OHT and an ECHO within 12 h of the biopsy. ECHO measures: (a) ratio of systolic to diastolic duration (S/D), (b) RV myocardial performance index (MPI) and (c) tricuspid regurgitant gradient to RV outflow tract velocity time integral ratio (TRG/VTI), were derived at baseline, during AAR and at two follow-ups...
November 23, 2016: Pediatric Cardiology
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