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Fetal Tachycardia

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81. Tachycardia-Induced Cardiomyopathy After Functional Closure of the Foramen Ovale in a Fetus. (PubMed)

Tachycardia-Induced Cardiomyopathy After Functional Closure of the Foramen Ovale in a Fetus. Although fetal tachyarrhythmias are relatively rare, they are an important causes of fetal morbidity and mortality. We report a 30-week pregnant woman with fetal tachycardia, fetal hydrops and ascites. Fetal heart rate was 230 bpm. Fetal heart rate was 230 bpm. M-mode echocardiography revealed a tachycardia with a 1:1 relationship between atrial and ventricular conduction and a short time interval (...) between ventricular and atrial contraction. These findings suggested a diagnosis of atrioventricular re-entrant tachycardia. On the third day digoxin treatment, the fetal heart rate was still 225 bpm with a 1:1 relationship between atrial and ventricular conduction. At this time, no flow across the foramen ovale was detected. Functional closure of the foramen ovale was suspected.

2011 Pediatric Cardiology

82. Reversible Atrioventricular Block and Junctional Ectopic Tachycardia in Coxsackievirus B3-Induced Fetal–Neonatal Myocarditis without Left Ventricular Dysfunction (PubMed)

Reversible Atrioventricular Block and Junctional Ectopic Tachycardia in Coxsackievirus B3-Induced Fetal–Neonatal Myocarditis without Left Ventricular Dysfunction We present a case of fetal-neonatal acute myocarditis caused by coxsackievirus B3 infection in a term neonate. The condition manifested as high-grade atrioventricular (A-V) block prenatally. After delivery, various arrhythmias such as high-grade A-V block, ventricular tachycardia, and junctional ectopic tachycardia appeared, and we (...) had difficulty managing these arrhythmias. This is the first report describing a case of acute myocarditis due to coxsackievirus infection presenting with fetal A-V block. This case is also unique in that it is extremely rare that various arrhythmias occur serially in one patient without left ventricular dysfunction.

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2011 AJP Reports

83. Risk Factors for Maternal and Fetal Outcome in Pregnancy Complicated with Ebstein Anomaly. (PubMed)

died of prematurity in the third case. In all other cases (20 of 21), neonatal prognoses were good without congenital heart diseases. There were 6 spontaneous abortions. Recurrent paroxysmal supraventricular tachycardia occurred during pregnancy in 2 cases and was treated with adenosine triphosphate or verapamil. In 17 pregnancies, NYHA remained in class I and all had full-term vaginal delivery.Maternal and fetal outcomes are good in patients with Ebstein anomaly and NYHA class I. However (...) Risk Factors for Maternal and Fetal Outcome in Pregnancy Complicated with Ebstein Anomaly. The goal of the study was to examine risks in pregnancy in patients with Ebstein anomaly.Data were examined retrospectively for 13 patients (27 pregnancies, 21 live births) with Ebstein anomaly during pregnancy who were treated at our institution from 1985 to 2011. The associated anomalies in these patients were atrial septal defect (ASD) (n = 4) and the Wolff-Parkinson-White syndrome (n = 6).Before

2013 American Journal of Obstetrics and Gynecology

84. Fetal and Neonatal Magnetophysiology

, healthy adult women with uncomplicated pregnancies High-risk cohort: The primary inclusion criterion is diagnosis of serious fetal arrhythmia, which is defined as sustained low or high heart rate. Low heart rate, or bradycardia, and high heart rate, or tachycardia, are based on normative values for gestation (usually below 110 -120 beats/min, or above 160-180 beats/min). Intermittent bradycardia and tachycardia are also important to detect because these arrhythmias may become incessant over the course (...) Fetal and Neonatal Magnetophysiology Fetal and Neonatal Magnetophysiology - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Fetal and Neonatal Magnetophysiology The safety and scientific validity

2013 Clinical Trials

85. Fetal and neonatal atrial arrhythmias: an association with maternal diabetes and neonatal macrosomia. (PubMed)

Fetal and neonatal atrial arrhythmias: an association with maternal diabetes and neonatal macrosomia. To determine if the incidence of maternal diabetes mellitus or neonatal macrosomia is more frequent in fetuses and neonates with atrial arrhythmias than the general population.Fetuses and neonates <30 days of age with atrial flutter or ectopic atrial tachycardia and structurally normal hearts were identified retrospectively through the cardiology databases. Electrocardiograms, echocardiograms (...) with atrial flutter or ectopic atrial tachycardia were more likely to be macrosomic or be born to diabetic mothers than the general population. Postnatal echocardiography suggests that there may be abnormal diastolic left ventricular filling in some babies with these arrhythmias. Independent of ventricular hypertrophy, we speculate that isolated, non-recurrent fetal or neonatal atrial flutter, or ectopic atrial tachycardia may be caused by cardiac diastolic dysfunction and atrial stretch in utero.© 2013

2013 Prenatal diagnosis

86. Congenital paroxysmal atrial tachycardia. (PubMed)

Congenital paroxysmal atrial tachycardia. Ten infants who had paroxysmal atrial tachycardia in utero or at birth are reported. Because of apparent fetal distress, caesarean section was performed in 4 cases and labour was induced in 1. Birthweight was generally large for gestational age. Severe ascites and hydrops at birth were manifestations of cardiac failure. Atrial flutter was recorded in 4 infants and supraventricular tachycardia in 5. The WoLff-Parkinson-White syndrome became evident later (...) in 2. Digoxin was given to all 10 infants, and cardioversion was required and was effective in 4. Known recurrences in childhood have occurred in only 1 patient. Congenital atrial tachyarrhythmias may be commoner than generally believed, and fetal electrocardiography may help to avoid unnecessary termination of pregnancy. Blood sugar determinations are important, since neonatal hypoglycaemia was found. Cardioversion should be performed promptly in severely ill infants or if there is no response

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1976 Archives of Disease in Childhood

87. Multifocal atrial tachycardia in two neonates. (PubMed)

Multifocal atrial tachycardia in two neonates. Two neonates with rapid and irregular pulse rate had an uncommon form of atrial tachycardia. The irregular heart rate was first detected during fetal monitoring. Postnatal electrocardiograms were compatible with the diagnosis of multifocal atrial tachycardia or chaotic atrial rhythm. Both patients were treated with digoxin and the rhythm gradually reverted to sinus. This may represent the first description of multifocal atrial tachycardia

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1977 British Heart Journal

88. FÅ’TAL PAROXYSMAL AURICULAR TACHYCARDIA (PubMed)

FÅ’TAL PAROXYSMAL AURICULAR TACHYCARDIA 13584642 2000 07 01 2019 02 21 0007-0769 20 4 1958 Oct British heart journal Br Heart J Foetal paroxysmal auricular tachycardia. 552-6 KESSON C W CW eng Case Reports Journal Article England Br Heart J 0370634 0007-0769 OM Arrhythmias, Cardiac Brugada Syndrome Cardiac Conduction System Disease Disease Fetal Diseases Fetus Heart Conduction System Humans Medical Records Tachycardia Tachycardia, Paroxysmal 5935:14040:221:572 FETUS/diseases TACHYCARDIA

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1958 British Heart Journal

89. Maternal Autoimmune Thyroid Disease and Fetal Thyroxin

a patient. Monitoring fetal growth, fetal heart rate (tachycardia is a late sign of fetal hyperthyroidism), bone maturation and the size of the fetal thyroid by ultrasound are important parameters for the assessment of transfer of hyperthyroidism from mother to the fetus Patients follow up: After inclusion into the study, thyroid function tests (fT4, TSH), and auto-antibodies assessment (anti TPO, TRAK) were performed once every two months in mothers with AITD, and from the 24th week of gestation (...) Maternal Autoimmune Thyroid Disease and Fetal Thyroxin Maternal Autoimmune Thyroid Disease and Fetal Thyroxin - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Maternal Autoimmune Thyroid Disease and Fetal

2012 Clinical Trials

90. Fetal Right-Ventricular Hypertrophy With Pericardial Effusion and Maternal Untreated Hyperthyroidism. (PubMed)

Fetal Right-Ventricular Hypertrophy With Pericardial Effusion and Maternal Untreated Hyperthyroidism. Uncontrolled/untreated maternal hyperthyroidism has been associated with fetal tachycardia. We report a case of right-ventricular (RV) hypertrophy with pericardial effusion related to untreated maternal Graves' disease. A 33-year-old G4P1021 woman with uncontrolled Graves' disease presented at 29 weeks gestation with abdominal pain and vaginal bleeding. Fetal echocardiogram showed severe RV (...) hypertrophy and a pericardial effusion. The infant was born prematurely, and initial transthoracic echocardiogram showed severe RV hypertrophy and a small pericardial effusion. The infant had clinical findings consistent with congenital thyrotoxicosis and was treated for this. Follow-up imaging at 4 weeks showed improvement of the cardiac hypertrophy and pericardial effusion. This article describes the presentation of fetal RV hypertrophy with congenital thyrotoxicosis and underscores the importance

2012 Pediatric Cardiology

91. Diagnosis and management of common fetal arrhythmias (PubMed)

Diagnosis and management of common fetal arrhythmias Fetal arrhythmias are detected in at least 2% of unselected pregnancies during routine obstetrical scans. Most common are transient, brief episodes of a slow or fast heart rate or of an irregular heart rhythm. Less common are prolonged or persistent abnormalities such as supraventricular tachycardia and complete heart block which may lead to low cardiac output, fetal hydrops and demise. The objectives of this review are to update the reader

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2011 Journal of the Saudi Heart Association

92. Fetal heart ventricle mass obtained by STIC acquisition combined with inversion mode and VOCAL. (PubMed)

Fetal heart ventricle mass obtained by STIC acquisition combined with inversion mode and VOCAL. Estimation of fetal heart ventricular mass is important for fetal cardiac evaluation in cases of structural or functional cardiac disorders or extracardiac factors. It may be used with other cardiac parameters to ascertain the severity and prognosis of such disorders, or the nature and timing of intervention. We applied a novel technique combining spatiotemporal image correlation (STIC) with three (...) -dimensional inversion mode and Virtual Organ Computer-aided AnaLysis (VOCAL™) for fetal cardiac mass assessment in healthy fetuses in the second and third trimesters.STIC acquisition was performed during fetal quiescence with the abdomen uppermost, at an angle of 30-50°, without color Doppler mapping. Myocardial volume measurements were performed in postprocessing using VOCAL mode, set to 15°. Beginning with the heart in four-chamber view at end diastole, a trace was drawn manually including

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2011 Ultrasound in Obstetrics and Gynecology

93. Developmentally Regulated SCN5A Splice Variant Potentiates Dysfunction of a Novel Mutation Associated with Severe Fetal Arrhythmia (PubMed)

Developmentally Regulated SCN5A Splice Variant Potentiates Dysfunction of a Novel Mutation Associated with Severe Fetal Arrhythmia Congenital long-QT syndrome (LQTS) may present during fetal development and can be life-threatening. The molecular mechanism for the unusual early onset of LQTS during fetal development is unknown.We sought to elucidate the molecular basis for severe fetal LQTS presenting at 19 weeks' gestation, the earliest known presentation of this disease.Fetal (...) magnetocardiography was used to demonstrated torsades de pointes and a prolonged rate-corrected QT interval. In vitro electrophysiological studies were performed to determine functional consequences of a novel SCN5A mutation found in the fetus.The fetus presented with episodes of ventricular ectopy progressing to incessant ventricular tachycardia and hydrops fetalis. Genetic analysis disclosed a novel, de novo heterozygous mutation (L409P) and a homozygous common variant (R558 in SCN5A). In vitro

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2011 Heart Rhythm

94. Early Cerebral Hemodynamic, Metabolic, and Histological Changes in Hypoxic-Ischemic Fetal Lambs during Postnatal Life. (PubMed)

hours of postnatal life following severe fetal asphyxia. Eighteen chronically instrumented newborn lambs were randomly assigned to either a control group or the hypoxic-ischemic (HI) group, in which case fetal asphyxia was induced just before delivery. All the animals were maintained on intermittent positive pressure ventilation for 3 h after delivery. During the HI insult, the injured group developed acidosis, hypoxia, hypercapnia, lactic acidosis, and tachycardia (relative to the control group (...) Early Cerebral Hemodynamic, Metabolic, and Histological Changes in Hypoxic-Ischemic Fetal Lambs during Postnatal Life. The hemodynamic, metabolic, and biochemical changes produced during the transition from fetal to neonatal life may be aggravated if an episode of asphyxia occurs during fetal life. The aim of the study was to examine regional cerebral blood flow (RCBF), histological changes, and cerebral brain metabolism in preterm lambs, and to analyze the role of oxidative stress in the first

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2011 Frontiers in neuroscience Controlled trial quality: uncertain

95. Responsiveness to glucagon in fetal hearts. Species variability and apparent disparities between changes in beating, adenylate cyclase activation, and cyclic AMP concentration. (PubMed)

in the concentration of cyclic AMP in spontaneously beating hearts that developed tachycardia. Responses in hearts of fetal rats were distinctly different from those in mouse hearts: at no age was there any change in heart rate, strength of contraction, glycogen content, or adenylate cyclase activation. Thus, there are major species differences in cardiac pharmacological maturation. Although the mouse heart develops the ability to increase its rate and strength of contraction and to undergo glycogenolysis (...) Responsiveness to glucagon in fetal hearts. Species variability and apparent disparities between changes in beating, adenylate cyclase activation, and cyclic AMP concentration. Previous studies of the ability of the immature heart to respond to glucagon have yielded conflicting results. To test the possibility that the apparent discrepancies might be explained in part by species variability, isolated hearts of fetal mice and rats (13-22 days' gestational age) were studied under identical

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1976 Journal of Clinical Investigation

96. THE EFFECTS OF SPINAL ANESTHESIA ON THE FETAL HEART RATE (PubMed)

THE EFFECTS OF SPINAL ANESTHESIA ON THE FETAL HEART RATE The effect of spinal anesthesia on fetal heart rate is due to maternal hypotension and subsequent fetal hypoxia. Maternal hypotension of 80 mm of mercury for five minutes almost always results in hypoxic fetal bradycardia. This bradycardia is gradual in onset, and may be preceded by a short period of fetal tachycardia. There is a lag in the return of fetal heart rate to normal after maternal blood pressure has normalized. Similar

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1963 California Medicine

97. Maturation of Responsiveness to Cardioactive Drugs: DIFFERENTIAL EFFECTS OF ACETYLCHOLINE, NOREPINEPHRINE, THEOPHYLLINE, TYRAMINE, GLUCAGON, AND DIBUTYRYL CYCLIC AMP ON ATRIAL RATE IN HEARTS OF FETAL MICE (PubMed)

innervation is fairly well developed, suggesting that the drug's primary sympathomimetic effect is indirect rather than direct. Dibutyryl cyclic AMP did not cause tachycardia at any fetal age. It is concluded that maturation of responsiveness of the mouse heart to cardioactive drugs develops in specific patterns for different agents. The identification of differential patterns of maturation for various drugs may provide valuable means for characterizing the differentiation of specific receptors (...) Maturation of Responsiveness to Cardioactive Drugs: DIFFERENTIAL EFFECTS OF ACETYLCHOLINE, NOREPINEPHRINE, THEOPHYLLINE, TYRAMINE, GLUCAGON, AND DIBUTYRYL CYCLIC AMP ON ATRIAL RATE IN HEARTS OF FETAL MICE Freshly isolated hearts of fetal mice of gestational ages ranging between 12 and 22 days (term) were exposed to several concentrations of a variety of chronotropic agents. Acetylcholine (10(-4)-10(-2) M) caused marked bradycardia in all hearts, even after only 12-14 days' gestation (i.e., even

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1973 Journal of Clinical Investigation

98. Ectopic pregnancy and miscarriage: diagnosis and initial management

by a healthcare professional. Signs of ectopic pregnancy include: more common signs: pelvic tenderness adnexal tenderness abdominal tenderness other reported signs: cervical motion tenderness rebound tenderness or peritoneal signs pallor abdominal distension enlarged uterus tachycardia (more than 100 beats per minute) or hypotension (less than 100/ 60 mmHg) shock or collapse orthostatic hypotension. [2012] [2012] 1.3.5 During clinical assessment of women of reproductive age, be aware that: they may (...) and of tubal ectopic pregnancy 1.4.1 Offer women who attend an early pregnancy assessment service (or out-of- hours gynaecology service if the early pregnancy assessment service is not available) a transvaginal ultrasound scan to identify the location of the pregnancy and whether there is a fetal pole and heartbeat. [2012] [2012] 1.4.2 Consider a transabdominal ultrasound scan for women with an enlarged uterus or other pelvic pathology, such as fibroids or an ovarian cyst. [2012] [2012] 1.4.3

2019 National Institute for Health and Clinical Excellence - Clinical Guidelines

99. Meconium aspiration syndrome

tachypnoea cyanosis systolic murmur chest wall asymmetry with decreased air entry barrel-shaped chest grunting chest retractions rales rhonchi tachycardia hypotension gestational age >42 weeks maternal history of hypertension, pre-eclampsia, eclampsia, smoking, substance abuse fetal distress oligohydramnios thick meconium Apgar score <7 chorioamnionitis caesarean delivery black or East Asian ancestry male sex Diagnostic investigations CXR FBC CRP blood culture dual pulse oximetry ABG (pH, PaO₂, PaCO (...) in the presence of maternal and fetal risk factors. Soon after birth, infants present with respiratory distress (tachypnoea, chest retractions, and hypoxia). Some may be asymptomatic and apparently vigorous at birth, and develop severe respiratory distress hours later. Signs of post-maturity, a strong risk factor, include green/yellow-coloured skin; long, stained nails; and dry, scaling skin. Diagnosis is confirmed by chest x-ray. Management is largely supportive. Infants should be monitored closely to ensure

2019 BMJ Best Practice

100. Placenta praevia

with an abnormally adherent placenta, where the placenta attaches to the myometrial layer of the uterus. Vasa praevia, where the fetal vessels lie over the internal cervical os, is an associated condition. In this topic we refer to all varieties of invasive placentation as abnormally adherent placenta. There are three commonly defined variants: placenta accreta (where chorionic villi attach to the myometrium, rather than being restricted within the decidua basalis), placenta increta (where the chorionic villi (...) invade into the myometrium), and placenta percreta (where the chorionic villi invade through the myometrium and sometimes into adjoining tissue). Publications Committee, Society for Maternal-Fetal Medicine, Belfort MA. Placenta accreta. Am J Obstet Gynecol. 2010 Nov;203(5):430-9. https://www.ajog.org/article/S0002-9378(10)01159-2/fulltext http://www.ncbi.nlm.nih.gov/pubmed/21055510?tool=bestpractice.com Although these distinctions are important to consultants, they do not change management decisions

2019 BMJ Best Practice

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