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Fetal arrhythmias

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https://www.readbyqxmd.com/read/28498066/atrial-fibrillation-in-pregnancy-a-growing-challenge
#1
Vasiliki Katsi, Georgios Georgiopoulos, Maria Marketou, Dimitrios Oikonomou, Fragiskos Parthenakis, Thomas Makris, Petros Nihoyannopoulos, P Vardas, Dimitris Tousoulis
Atrial fibrillation (AF) constitutes a relatively infrequent pregnancy complication, which may be a therapeutic Gordian knot. Indeed, sparse data exist regarding the prevalence, prognosis and management of AF during pregnancy. In general, AF occurs as a benign, self-limited arrhythmia but occasionally may have severe hemodynamic consequences in pregnant patients suffering from heart failure, congenital heart disease, or other comorbidities. Extra-cardiac causes of AF should always be meticulously excluded. Treatment decisions are difficult, since medications may cross placental barrier and potentially affect fetal growth and organogenesis or even result in fetal bradyarrhythmias...
May 12, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28449506/surgical-resection-of-right-ventricular-rhabdomyoma-under-the-guidance-of-transesophageal-echocardiography-on-a-beating-heart
#2
Xueguang Han, Haibo Song, Li Zhou, Chunling Jiang
Cardiac rhabdomyoma, a type of benign myocardial tumor, is regarded as the most common fetal cardiac tumor. Rhabdomyomas are usually found before birth or during the first year of life. It is widely accepted that rhabdomyomas are strongly associated with tuberous sclerosis, and tend to regress spontaneously without surgical excision. However, if the tumor has caused significant obstruction or refractory arrhythmias, the surgery should be advocated. Most of the surgeries for pediatric cardiac tumors are performed under cardiopulmonary bypass (CPB) with cardioplegia...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28431725/intraoperative-three-dimensional-mapping%C3%A2-of-supraventricular-tachycardia-in-a-young-fontan%C3%A2-patient
#3
James C Perry, Matthew R Williams, Suzanne Shepard, Andras Bratincsak, Cynthia Murphy, Raghav Murthy, Mohammad Ebrahim, John J Lamberti
Preoperative tachycardia is uncommon before an initial Fontan procedure. Catheter intervention can risk complications in small patients. A patient with fetal tachycardia and double inlet left ventricle underwent Norwood and bidirectional Glenn procedures. She had persistent tachycardia. A three-dimensional electroanatomic mapping system was modified for the operative procedure; it was used to identify the arrhythmia substrate and cryoablate an atrioventricular nodal tachycardia. Mapping added 20 minutes to the operation...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28426617/clinical-updates-in-women-s-health-care-summary-arrhythmias-primary-and-preventive-care-review
#4
Brittany S Fuller, Michele D Voeltz
Obstetrician-gynecologists often are the sole providers of health care to female patients. Because cardiovascular disease is the leading cause of death in women in the United States, obstetrician- gynecologists must be aware of the risk factors, symptoms, and signs of cardiovascular disease and arrhythmia. Furthermore, they must be prepared to identify and treat common types of arrhythmia in this population and refer patients to cardiology for specialized care. Understanding the role of pregnancy among women with arrhythmia is critically important to optimize both maternal and fetal outcomes...
May 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28424445/management-of-tachyarrhythmia-during-pregnancy
#5
Emily Ann Enderlin, Khaldia Taufiq Khaled, Luke Oke, Mohammed Madmani, Hakan Paydak
Maternal tachyarrhythmia is a common complication during pregnancy due to hormonal changes that enhance pre-existing arrhythmias or induce new arrhythmias in the presence of congenital heart defects in pregnant females. Presence of tachyarrhythmia during pregnancy poses risk to the mother and fetus, calling for proper treatment with medications. Use of antiarrhythmic drugs in cases of maternal tachyarrhythmia must give due consideration of potential teratogenic side effects. Utilization of antiarrhythmic drugs during pregnancy has been well studied; some result in minimal fetal harm or none at all...
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28403428/maternal-and-fetal-outcomes-of-admission-for-delivery-in-women-with-congenital-heart-disease
#6
Robert M Hayward, Elyse Foster, Zian H Tseng
Background: Women with congenital heart disease (CHD) may be at increased risk for adverse events during pregnancy and delivery. Objective: To compare delivery outcomes between women with and without CHD. Design, Setting, and Participants: This retrospective study of inpatient delivery admissions in the Healthcare Cost and Utilization Project's California State Inpatient Database compared maternal and fetal outcomes between women with and without CHD by using multivariate logistic regression...
April 12, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28317612/hormonal-electrolytic-and-electrocardiographic-evaluations-in-bitches-with-eutocia-and-dystocia
#7
Carla Regina Barbieri Simões, Flávia Gardilin Vassalo, Maria Lúcia Gomes Lourenço, Fabiana Ferreira de Souza, Eunice Oba, Mateus José Sudano, Nereu Carlos Prestes
The objective of the study was to assess clinical alterations, electrocardiographic, hematological, biochemical, hemogasometric, electrolytic, and hormone plasma concentrations in bitches with eutocia and dystocia. Overall, 28 bitches (dystocia, n = 22 and eutocia, n = 6) were assessed. The evaluations were performed at 2 time points, M1 (1 hour prepartum-eutocia group and cesarean or clinical intervention-dystocia group) and M2 (postpartum-eutocia or dystocia group and anesthetic recovery-dystocia group). The main clinical finding was the hypothermia (mean: 36...
December 2016: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28292826/arrhythmia-risk-and-%C3%AE-blocker-therapy-in-pregnant-women-with-long-qt-syndrome
#8
Kohei Ishibashi, Takeshi Aiba, Chizuko Kamiya, Aya Miyazaki, Heima Sakaguchi, Mitsuru Wada, Ikutaro Nakajima, Koji Miyamoto, Hideo Okamura, Takashi Noda, Toshifumi Yamauchi, Hideki Itoh, Seiko Ohno, Hideki Motomura, Yoshiharu Ogawa, Hiroko Goto, Takaomi Minami, Nobue Yagihara, Hiroshi Watanabe, Kanae Hasegawa, Akihiro Terasawa, Hitoshi Mikami, Kayo Ogino, Yukiko Nakano, Sato Imashiro, Yosuke Fukushima, Yoshimitsu Tsuzuki, Koko Asakura, Jun Yoshimatsu, Isao Shiraishi, Shiro Kamakura, Yoshihiro Miyamoto, Satoshi Yasuda, Takashi Akasaka, Minoru Horie, Wataru Shimizu, Kengo Kusano
BACKGROUND: Pregnancy is one of the biggest concerns for women with long QT syndrome (LQTS). OBJECTIVES: This study investigated pregnancy-related arrhythmic risk and the efficacy and safety of β-blocker therapy for lethal ventricular arrhythmias in pregnant women with LQTS (LQT-P) and their babies. METHODS: 136 pregnancies in 76 LQT-P (29±5 years old; 22 LQT1, 36 LQT2, one LQT3, and 17 genotype-unknown) were enrolled. We retrospectively analysed their clinical and electrophysiological characteristics and pregnancy outcomes in the presence (BB group: n=42) or absence of β-blocker therapy (non-BB group: n=94)...
March 14, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28265962/treatment-of-fetal-supraventricular-tachycardia
#9
REVIEW
Bridget B Zoeller
Fetal arrhythmia is a common reason for referral to fetal cardiology. Fetal supraventricular tachycardia can be subdivided into several groups with the most common being re-entrant supraventricular tachycardia and atrial flutter. Fetal tachycardia can lead to hydrops fetalis, which increases the risk of fetal demise, perinatal morbidities, and premature delivery. The diagnosis of fetal tachycardia can be a challenge as a traditional electrocardiogram cannot be completed on a fetus, and other methods must be used by fetal echocardiogram...
January 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28208963/clinical-profile-of-cardiac-arrhythmias-in-children-attending-the-out-patient-department-of-a-tertiary-paediatric-care-centre-in-chennai
#10
Sarala Premkumar, Premkumar Sundararajan, Thangavelu Sangaralingam
INTRODUCTION: The presentation of symptoms of paediatric arrhythmias vary depending on the age and underlying heart disease. Physical examination of children with important arrhythmias may be entirely normal. AIM: Aim is to study the characteristics of cardiac arrhythmias in paediatric patients in a tertiary paediatric care centre in Chennai, India. MATERIALS AND METHODS: The participants (n=60) were from birth to 12 years of age. Patients with sinus arrhythmias, sinus tachycardia and sinus bradycardia were excluded...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28191323/autonomic-imbalance-captures-maternal-and-fetal-circulatory-response-to-pre-eclampsia
#11
Igor Lakhno
BACKGROUND: Pre-eclampsia (PE) is a gestational disease featured by hypertension, arterial systemic vasculopathy, multiple organ failure and fetal compromise. The aim of the investigation was to determine the role of maternal respiratory sinus arrhythmia (RSA) in regulation of the fetal circulatory system in case of healthy pregnancy and in PE. METHODS: The investigation of maternal and fetal HRV and fetal CTG variables in 106 patients at 34-40 weeks of gestation was performed...
2017: Clinical Hypertension
https://www.readbyqxmd.com/read/28090637/diltiazem-prevents-stress-induced-contractile-deficits-in-cardiomyocytes-but-does-not-reverse-the-cardiomyopathy-phenotype-in-mybpc3-knock-in-mice
#12
Frederik Flenner, Birgit Geertz, Silke Reischmann-Düsener, Florian Weinberger, Thomas Eschenhagen, Lucie Carrier, Felix W Friedrich
Left ventricular hypertrophy, diastolic dysfunction and fibrosis are main features of hypertrophic cardiomyopathy (HCM). Guidelines recommend β-adrenoceptor or Ca(2+) channel antagonists as pharmacological treatment. The Ca(2+) channel blocker diltiazem recently showed promising beneficial effects in pre-clinical HCM, particularly in patients carrying MYBPC3 mutations. In the present study we evaluated whether diltiazem could ameliorate or reverse the disease phenotype in cells and in vivo in Mybpc3-targeted knock-in (KI) mouse model of HCM...
January 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28055987/heart-beat-classification-from-single-lead-ecg-using-the-synchrosqueezing-transform
#13
Christophe L Herry, Martin Frasch, Andrew Je Seely, Hau-Tieng Wu
The processing of ECG signal provides a wealth of information on cardiac function and overall cardiovascular health. While multi-lead ECG recordings are often necessary for a proper assessment of cardiac rhythms, they are not always available or practical, for example in fetal ECG applications. Moreover, a wide range of small non-obtrusive single-lead ECG ambulatory monitoring devices are now available, from which heart rate variability (HRV) and other health-related metrics are derived. Proper beat detection and classification of abnormal rhythms is important for reliable HRV assessment and can be challenging in single-lead ECG monitoring devices...
January 5, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28043830/fetal-primary-cardiac-tumors-during-perinatal-period
#14
REVIEW
Shi-Min Yuan
Fetal primary cardiac tumors are rare, but they may cause complications, which are sometimes life threatening, including arrhythmias, hydrops fetalis, ventricular outflow/inflow obstruction, cardiac failure, and even sudden death. Among fetal primary cardiac tumors, rhabdomyomas are most common, followed by teratomas, fibromas, hemangiomas, and myxomas. Everolimus, a mammalian target of rapamycin inhibitor, has been reported to be an effective drug to cause tumor remission in three neonates with multiple cardiac rhabdomyomas...
October 28, 2016: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28042286/importance-of-fetal-arrhythmias-to-the-neonatologist-and-pediatrician
#15
Annette Wacker-Gussmann, Ronald T Wakai, Janette F Strasburger
Sudden, unexplained death during the perinatal period remains a major, longstanding challenge. Recent advances in diagnostic techniques and genetic testing has provided evidence that a significant fraction of these deaths may result from lethal cardiac arrhythmias. In this paper, we review current methods of diagnosing arrhythmia in the fetus and strategies for management of life-threatening arrhythmia throughout the perinatal period, including transitional care at the time of delivery.
October 2016: NeoReviews
https://www.readbyqxmd.com/read/27977016/heart-sounds-at-home-feasibility-of-an-ambulatory-fetal-heart-rhythm-surveillance-program-for-anti-ssa-positive-pregnancies
#16
B F Cuneo, A J Moon-Grady, S-E Sonesson, S Levasseur, L Hornberger, M T Donofrio, A Krishnan, A Szwast, L Howley, D W Benson, E Jaeggi
OBJECTIVE: Fetuses exposed to anti-SSA (Sjögren's) antibodies are at risk of developing irreversible complete atrioventricular block (CAVB), resulting in death or permanent cardiac pacing. Anti-inflammatory treatment during the transition period from normal heart rhythm (fetal heart rhythm (FHR)) to CAVB (emergent CAVB) can restore sinus rhythm, but detection of emergent CAVB is challenging, because it can develop in ⩽24 h. We tested the feasibility of a new technique that relies on home FHR monitoring by the mother, to surveil for emergent CAVB...
March 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27968776/the-electrocardiogram-of-the-neonate-and-infant
#17
Konrad Brockmeier, Rewa Nazal, Narayanswami Sreeram
The ECG in children has a number of characteristic differences compared to the ECG of the adult. The transition of the ECG in neonates after birth represents dynamic changes of the circulatory system due to the postnatal adaptation, different physiologic properties of the fetal and neonatal myocardium, the location and orientation of the heart in the chest and influence of body mass during that period and later on in childhood. The complexity of the changes implies a broad variation of ECG changes during the first days and weeks of life, whose interpretation requires expert knowledge...
November 2016: Journal of Electrocardiology
https://www.readbyqxmd.com/read/27943499/prenatal-diagnosis-and-prognosis-of-accelerate-idioventricular-rhythm
#18
Jean-Claude Fouron, Ariane McNeal-Davidson, Sylvia Abadir, Anne Fournier, Jean-Luc Bigras, Christine Boutin, Myriam Brassard, Marie-Josée Raboisson, Nicolaas van Doesburg, Annie Berger, Sophie Brisebois, Roxanne Gendron
OBJECTIVES: Since postnatal identification of accelerated idioventricular rhythm (AIVR) is essentially based on specific electrocardiographic patterns, its prenatal diagnosis is challenging and its genuine incidence undetermined. Therefore the objectives of this study are: 1) To evaluate the performance of specific ultrasonographic approaches in intrauterine identification of cardiocirculatory events linked to electrocardiographic signs of AIVR, including its left or right ventricular origin, and 2) To assess the prenatal prognosis of the arrhythmia...
December 10, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27843561/predictors-of-poor-outcome-among-children-with-heterotaxy-syndrome-a-retrospective-review
#19
Eiméar McGovern, Eoin Kelleher, James E Potts, John O'Brien, Kevin Walsh, Lars Nolke, Colin J McMahon
OBJECTIVE: To determine predictors of poor outcome in patients with heterotaxy syndrome. METHODS: A retrospective review of children with heterotaxy syndrome, in a single tertiary paediatric cardiology centre, was conducted between 1 January 1997 and 1 January 2014 to determine predictors of poor outcome. Poor outcome was defined as death, cardiac transplantation or New York Heart Association (NYHA) functional class III or IV. RESULTS: There were 35 patients diagnosed with heterotaxy syndrome, 17 of whom were diagnosed antenatally...
2016: Open Heart
https://www.readbyqxmd.com/read/27710806/sleep-related-changes-in-cardiovascular-autonomic-regulation-in-left-coronary-artery-ligation-rats-neural-mechanism-facilitating-arrhythmia-after-myocardial-infarction
#20
Wei-Lun Lin, Li-Wei Lo, Hau-Ruey Chen, Chun-Ting Lai, Shinya Yamada, Shin-Huei Liu, Yu-Hui Chou, Shih-Ann Chen, Yun-Ching Fu, Terry B J Kuo
BACKGROUND: Autonomic imbalance with increased sympathetic and decreased parasympathetic activities is observed in patients after myocardial infarction (MI). We aimed to investigate sleep-related changed in autonomic regulation in left coronary artery (LCA) ligation rats. METHODS: Wireless transmission of polysomnographic recording was performed in sham and LCA ligation male rats during normal daytime sleep with and without atenolol treatment. Spectral analyses of the electroencephalogram (EEG) and electromyogram (EMG) were evaluated to define active waking (AW), quiet and paradoxical sleeps (QS, PS)...
December 15, 2016: International Journal of Cardiology
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