Abstract：
:To determine the influence of heart rate (HR) on systolic time intervals (STI) in neonates, serial measurements of right ventricular (RVSTI) and left ventricular systolic time intervals (LVSTI) were made on 30 healthy term newborn infants at age 4-8 h, 24-30 h, eight days, and four weeks. STI was related to HR and age. Age-related changes were similar to previously reported results. The preejection periods (RPEP and LPEP) significantly shortened with increasing age, whereas the right and left ventricular ejection times (RVET and LVET) were unrelated to age. RPEP was unrelated to HR, but tended to be prolonged in restless infants. With increasing HR, RVET decreased and RPEP/RVET increased in all age groups, but less at four weeks. A rise in HR of 50/min resulted in an increase of RPEP/RVET by 26% of the mean value at age 4-8 h and by 20% at four weeks. In 14 infants, RVSTI was recorded during a change in HR. In all these infants, RPEP and RPEP/RVET increased with increasing HR. We conclude that HR-related changes of RVSTI in neonates are different from those in older subjects. It should be considered that in neonates elevated values of RPEP/RVET, suggesting increased pulmonary vascular resistance, may be caused by high HR and unrest.
journal_name
Pediatr Cardioljournal_title
Pediatric cardiologyauthors
Lindner W,Döhlemann C,Schneider K,Versmold Hdoi
10.1007/BF02336549subject
Has Abstractpub_date
1985-01-01 00:00:00pages
117-21issue
3eissn
0172-0643issn
1432-1971journal_volume
6pub_type
杂志文章abstract：:The morphology and natural history of anomalous right ventricular muscle bundles (ARVMB) have been described in a number of postnatal studies. Whether this is a congenital or acquired cardiac lesion remains obscure. A fetal echocardiogram performed in a 32-week gestation mother showed a large ventricular septal defect...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/BF00795736
更新日期：1994-09-01 00:00:00
abstract：:Interruption of the aortic arch and hypoplastic left heart syndrome in the same patient is exceptional. In the combined collections of the Registry of Cardiovascular Disease (St. Paul, Minnesota, U.S.A.) and the Registry of Congenital Heart Defects of the Rijksuniversiteit Gent (Gent, Belgium) three specimens were fou...
journal_title：Pediatric cardiology
pub_type： 杂志文章,评审
doi：10.1007/BF00798068
更新日期：1995-11-01 00:00:00
abstract：:There has been substantial controversy regarding treatment of congenital heart defects in infants with trisomies 13 and 18. Most reports have focused on surgical outcomes versus expectant treatment, and rarely there has been an effort to consolidate existing evidence into a more coherent way to help clinicians with de...
journal_title：Pediatric cardiology
pub_type： 杂志文章,评审
doi：10.1007/s00246-020-02444-6
更新日期：2020-10-01 00:00:00
abstract：:Maximal oxygen consumption (VO2max) is the "gold standard" by which to assess functional capacity; however, it is effort dependent. VO2@RER1.0 is defined when VO2 = VCO2. Between December 22, 1997 and November 9, 2004, 305 pediatric subjects underwent cycle ergometer cardiopulmonary exercise testing, exercised to exha...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-009-9544-9
更新日期：2010-01-01 00:00:00
abstract：:Killian-Pallister syndrome is a rare dysmorphic condition characterized by specific clinical manifestations and tetrasomy 12p. Although the association of this condition with congenital heart disease has been previously documented, no cases have been reported in association with Fallot's tetralogy. We report one such ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s002469900420
更新日期：1999-03-01 00:00:00
abstract：:Azygos continuation of inferior venacava (IVC) is well known in association with interrupted IVC. We report azygos connection of uninterrupted IVC in a young child with complex univentricular heart. This peculiar anatomy was made suitable for univentricular repair by combining percutaneous device closure of prehepatic...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-010-9802-x
更新日期：2011-01-01 00:00:00
abstract：:Congenital heart defects (CHD) are the third leading cause of death in children <1 year of age in Mexico where there is a high prevalence of the 677C → T polymorphism of the MTHFR gene. This is important because the homozygous 677T/T MTHFR gene and deficiency of folic acid (FA) intake have been associated with CHD. Ou...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-012-0380-y
更新日期：2013-01-01 00:00:00
abstract：:We present a 2-month-old male infant with thrombosis in the superior vena cava and pericardium due to transient protein C deficiency. Protein C deficiency was related to sepsis and hepatitis-induced liver function impairment. The patient's cardiac anatomy was otherwise normal. The patient was referred to us with signs...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-006-1265-8
更新日期：2006-07-01 00:00:00
abstract：:This paper reviews the initial experience of radical correction of truncus arteriosus in the Soviet Union. The anatomy, hemodynamics, diagnosis and surgical technique are described in detail. Five patients were operated on; three survived. The two deaths in this series were due to mistakes in evaluating the indication...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/BF02424960
更新日期：1984-04-01 00:00:00
abstract：:Mammalian cardiomyocytes withdraw from the cell cycle soon after birth. This process is called terminal differentiation. The c-kit, a receptor tyrosine kinase, is expressed on cardiomyocytes immediately after birth but for only a few days. In mice with genetic c-kit dysfunction, adult cardiomyocytes are phenotypically...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-008-9366-1
更新日期：2009-07-01 00:00:00
abstract：:During the development of so-called aneurysmal transformation of perimembranous ventricular septal defects (pmVSD), tricuspid valve (TV) morphology and function may be altered resulting in left ventricular (LV) to right atrial (RA) shunting. The feasibility and outcome of interventional closure of these pmVSD has not ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-015-1170-0
更新日期：2015-10-01 00:00:00
abstract：:Subtotal cor triatriatum sinister (partially divided left atrium) is characterized by a membrane dividing the left atrium into two portions: a dorsal accessory proximal chamber that receives part of the pulmonary venous return and a small restrictive defect in the membrane that obstructs blood flow from the accessory ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-008-9205-4
更新日期：2008-07-01 00:00:00
abstract：:Interventional occluder implantation has become the preferred mode of treatment in children with clinically significant atrial septal defect (ASD). The continuous increase in the number of patients treated calls for long-term data on device integrity and biocompatibility. We report a child who underwent successful int...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-010-9757-y
更新日期：2010-10-01 00:00:00
abstract：:The proximal course of an anomalously arising coronary artery is a decisive factor in the surgical approach for tetralogy of Fallot (TOF). Studies have shown that echocardiography provides a good anatomic definition of the ostium and proximal epicardial course of coronary arteries [1, 2]. This report describes a case ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-012-0444-z
更新日期：2013-01-01 00:00:00
abstract：:We report hemodynamic findings in two patients with pulmonary atresia and intact ventricular septum (PAIVS) after "one-and-a-half ventricle repair" and placement of a bidirectional Glenn shunt using four-dimensional (4D) flow magnetic resonance imaging. Quantification of flow and analysis of flow patterns revealed the...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-012-0288-6
更新日期：2013-02-01 00:00:00
abstract：:In a patient with single ventricle, mitral atresia, common atrium, pulmonary stenosis, azygos continuation of the inferior vena cava and bilateral systemic artery--pulmonary artery anastomoses, the systemic veins were connected directly to the pulmonary arteries to achieve physiologic repair; the child was discharged ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:A 5-year-old child with a Fontan circulation presented with acquired left pulmonary vein occlusion related to a previous surgical repair. We managed this lesion using a hybrid technique to perforate, dilate and stent the obstructed vessel. This approach should be considered when percutaneous access to the pulmonary ve...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-016-1376-9
更新日期：2016-06-01 00:00:00
abstract：:Catheter ablation in children requires placement of multiple large femoral venous sheaths and catheters. Magnetic resonance angiography (MRA) was used to evaluate the effect of indwelling lines on femoral venous blood flow. Between October 1993 and February 1994 a total of 17 patients scheduled for catheter ablation u...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s002469900151
更新日期：1997-05-01 00:00:00
abstract：:This study is presented to identify and characterize the spectrum of the cardiovascular anomalies in children presenting with Williams-Beuren syndrome and cardiovascular anomalies at The Hospital for Sick Children, Toronto from 1966 to 1988. Forty-nine children were diagnosed and followed. The female to male ratio was...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/BF02310569
更新日期：1991-10-01 00:00:00
abstract：:An aneurysm of the fossa ovalis was identified at autopsy in 17 infants. In each case the aneurysm of the fossa ovalis was considered to have resulted from excessive elevation of pressure in that atrium contralateral to the side into which the aneurysm bulged. The aneurysms were divided into two types: intrinsic (thre...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/BF02282740
更新日期：1985-01-01 00:00:00
abstract：:Right-ventricular diverticula (RVD), although rare, have particular characteristics. Our study describes the morphology of anterosuperior diverticula of the right ventricle (RV) and patient outcome for this anomaly. Retrospective analysis was performed on all patients with anterosuperior RVD diagnosed in two tertiary ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-014-0885-7
更新日期：2014-08-01 00:00:00
abstract：:At the University of California Davis Medical Center, a screening fetal ultrasound examination (level I or II) incorporates a comprehensive segmental evaluation of the fetal heart. This study evaluated the reliability of the fetal ultrasound exam in the detection of abnormal heart anatomy. Our retrospective study revi...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-001-0073-4
更新日期：2002-11-01 00:00:00
abstract：:Presented is a retrospective outcome study of a 15-year single institutional experience with a contemporary cohort of patients with hypoplastic left heart syndrome and complex that underwent a "Giessen Hybrid" stage I as initial palliation. Hybrid approach consisting of surgical bilateral pulmonary artery banding and ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-014-1015-2
更新日期：2015-02-01 00:00:00
abstract：:The epinephrine test has been shown to be a powerful tool to predict the genotype of congenital long QT syndrome (LQTS). The aim of this study was to evaluate its role in the diagnosis and management of LQTS in children. The test (using the Shimizu protocol) was conducted in patients with some evidence of LQTS but in ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-009-9603-2
更新日期：2010-05-01 00:00:00
abstract：:Limited data exist on the impact of prenatal diagnosis and outcomes of fetal truncus arteriosus (TA). We sought to assess prenatal diagnostic accuracy and prenatal outcomes in fetuses with TA and compare postnatal outcomes in neonates with prenatally and postnatally diagnosed TA. Records were reviewed for patients dia...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-008-9328-7
更新日期：2009-04-01 00:00:00
abstract：:Many different types of potassium channels with various functions exist in pulmonary artery smooth muscle cells, contributing to many physiological actions and pathological conditions. The deep involvement of these channels in the onset and exacerbation of pulmonary arterial hypertension (PAH) also continues to be rev...
journal_title：Pediatric cardiology
pub_type： 杂志文章,评审
doi：10.1007/s00246-016-1491-7
更新日期：2017-01-01 00:00:00
abstract：:Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare condition. The majority of cases present with impaired left ventricular function. We report on a premature infant who was diagnosed at a gestational age near term with ALCAPA during routine cardiac examination. The patient showed...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-004-0878-z
更新日期：2006-03-01 00:00:00
abstract：:Ventricular dysfunction in patients after Fontan-like operations (FLOs) is a serious complication that might contribute to poor long-term results. Ischemic heart disease will have debilitating consequences on a Fontan heart. Ten patients (15.8 +/- 5.01 years) after FLO had transesophageal echocardiography and cardiac ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/s00246-002-0355-5
更新日期：2003-07-01 00:00:00
abstract：:Previous studies have evaluated left ventricular dimensions in children using two-dimensional echocardiography, but there is little information on gender differences and on the longitudinal development of the dimensions of the left ventricle. Our objective was to assess, by two-dimensional echocardiography, the normal...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/BF02505207
更新日期：1996-05-01 00:00:00
abstract：:This report describes the use of cross-sectional imaging--echocardiography and contrast-enhanced computed tomography--to confirm the presence of a foramen-type defect of the left pericardium with herniation of the left atrial appendage. ...
journal_title：Pediatric cardiology
pub_type： 杂志文章
doi：10.1007/BF02263455
更新日期：1987-01-01 00:00:00
