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https://www.readbyqxmd.com/read/28424444/a-successful-cesarean-delivery-without-fetal-or-maternal-morbidity-in-an-eisenmenger-patient-with-cor-triatriatum-sinistrum-double-orifice-mitral-valve-large-ventricular-septal-defect-and-single-ventricle-who-was-under-long-term-bosentan-treatment
#1
Hacer Ceren Tokgöz, Cihangir Kaymaz, Nertila Poci, Özgür Yaşar Akbal, Selçuk Öztürk
Presently described is successful cesarean delivery in a pregnancy superimposed on long-term bosentan treatment in an Eisenmenger syndrome patient with cor triatriatum sinistrum, double-orifice mitral valve, and large ventricular septal defect resulting in single functioning ventricle with double outlets. Cesarean delivery was performed at 27th week of gestation without maternal or fetal morbidity. The infant had no congenital cardiovascular abnormality or any probable teratogenic effect of bosentan treatment during pregnancy...
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28418512/a-method-for-in-vitro-tcpc-compliance-verification
#2
Mike Tree, Zhenglun Alan Wei, Brady Munz, Kevin Maher, Shriprasad Deshpande, Timothy Slesnick, Ajit Yoganathan
The Fontan procedure is a common palliative intervention for sufferers of single ventricle congenital heart defects that results in an anastomosis of the venous return to the pulmonary arteries called the total cavopulmonary connection (TCPC). Local TCPC and global Fontan circulation hemodynamics are studied with in vitro circulatory models because of hemodynamic ties to Fontan patient long-term complications. The majority of in vitro studies, to date, employ a rigid TCPC model. Recently, a few studies have incorporated flexible TCPC models, but provide no justification for the model material properties...
April 17, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28417288/troponin-t-elevation-after-permanent-pacemaker-implantation
#3
Xueying Chen, Ziqing Yu, Jin Bai, Shulan Hu, Wei Wang, Shengmei Qin, Jingfeng Wang, Zhe Sun, Yangang Su, Junbo Ge
PURPOSE: The objective of the study is to study the incidence, significance, and factors associated with cardiac troponin T (CTNT) elevation after pacemaker implantation. METHODS: Three hundred seventy-four patients (104 single-chamber pacemakers or ICD, 243 dual-chamber pacemakers, and 27 cardiac resynchronization therapy/cardiac resynchronization therapy defibrillator) who had normal levels of CTNT at baseline and underwent implantation of a permanent pacemaker system were included in this study...
April 18, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28409732/the-surgical-treatment-of-tumors-of-the-fourth-ventricle-a-single-institution-experience
#4
Sherise D Ferguson, Nicholas B Levine, Dima Suki, Andrew J Tsung, Fredrick F Lang, Raymond Sawaya, Jeffrey S Weinberg, Ian E McCutcheon
OBJECTIVE Fourth ventricle tumors are rare, and surgical series are typically small, comprising a single pathology, or focused exclusively on pediatric populations. This study investigated surgical outcome and complications following fourth ventricle tumor resection in a diverse patient population. This is the largest cohort of fourth ventricle tumors described in the literature to date. METHODS This is an 18-year (1993-2010) retrospective review of 55 cases involving patients undergoing surgery for tumors of the fourth ventricle...
April 14, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28409219/carbonylation-of-atrial-myosin-prolongs-its-interaction-with-actin
#5
G Kopylova, S Nabiev, D Shchepkin, S Bershitsky
Carbonylation induced by hyperthyroidism suppresses force generation of skeletal myosin and sliding velocity of actin filaments in an in vitro motility assay. However, its effects on cardiac myosin at the molecular level have not been studied. Hyperthyroidism induces a change in expression of myosin heavy chains in ventricles, which may mask the effect of oxidation. In contrast to ventricular myosin, expression of myosin heavy chains in the atrium does not change upon hyperthyroidism and enables investigation of the effect of oxidation on cardiac myosin...
April 13, 2017: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/28408455/cell-therapy-trials-in-congenital-heart-disease
#6
REVIEW
Hidemasa Oh
Dramatic evolution in medical and catheter interventions and complex surgeries to treat children with congenital heart disease (CHD) has led to a growing number of patients with a multitude of long-term complications associated with morbidity and mortality. Heart failure in patients with hypoplastic left heart syndrome predicated by functional single ventricle lesions is associated with an increase in CHD prevalence and remains a significant challenge. Pathophysiological mechanisms contributing to the progression of CHD, including single ventricle lesions and dilated cardiomyopathy, and adult heart disease may inevitably differ...
April 14, 2017: Circulation Research
https://www.readbyqxmd.com/read/28408211/cardiac-voltage-gated-ion-channels-in-safety-pharmacology-review-of-the-landscape-leading-to-the-cipa-initiative
#7
REVIEW
Hai Huang, Michael K Pugsley, Bernard Fermini, Michael J Curtis, John Koerner, Michael Accardi, Simon Authier
Voltage gated ion channels are central in defining the fundamental properties of the ventricular cardiac action potential (AP), and are also involved in the development of drug-induced arrhythmias. Many drugs can inhibit cardiac ion currents, including the Na(+) current (INa), L-type Ca(2+) current (Ica-L), and K(+) currents (Ito, IK1, IKs, and IKr), and thereby affect AP properties in a manner that can trigger or sustain cardiac arrhythmias. Since publication of ICH E14 and S7B over a decade ago, there has been a focus on drug effects on QT prolongation clinically, and on the rapidly activating delayed rectifier current (IKr), nonclinically, for evaluation of proarrhythmic risk...
April 10, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28406991/a-mathematical-model-for-active-contraction-in-healthy-and-failing-myocytes-and-left-ventricles
#8
Li Cai, Yongheng Wang, Hao Gao, Yiqiang Li, Xiaoyu Luo
Cardiovascular disease is one of the leading causes of death worldwide, in particular myocardial dysfunction, which may lead to heart failure eventually. Understanding the electro-mechanics of the heart will help in developing more effective clinical treatments. In this paper, we present a multi-scale electro-mechanics model of the left ventricle (LV). The Holzapfel-Ogden constitutive law was used to describe the passive myocardial response in tissue level, a modified Grandi-Pasqualini-Bers model was adopted to model calcium dynamics in individual myocytes, and the active tension was described using the Niederer-Hunter-Smith myofilament model...
2017: PloS One
https://www.readbyqxmd.com/read/28404226/percutaneous-balloon-pericardiotomy-treatment-of-choice-in-patients-with-advanced-oncological-disease-and-severe-pericardial-effusion
#9
Francisco Javier Irazusta, Santiago Jiménez-Valero, Daniele Gemma, Pablo Meras, Guillermo Galeote, Angel Sanchez-Recalde, Veronica Rial, Raul Moreno, Jose Luis Lopez-Sendon
INTRODUCTION AND OBJECTIVES: Malignant pericardial effusion has a high recurrence rate after pericardiocentesis. We sought to confirm the efficacy and feasibility of percutaneous balloon pericardiotomy (PBP) as the initial treatment of choice for these effusions. METHODS: Retrospective analysis of the clinical, echocardiographic, and follow-up characteristics of a consecutive series of PBP carried out in a single-center in patients with advanced cancer. RESULTS: Forty PBPs were performed in 35 patients with a mean age of 61...
April 4, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28402400/unplanned-cardiac-reoperations-and-interventions-during-long-term-follow-up-after-the-norwood-procedure%C3%A2
#10
Eva Sames-Dolzer, Gregor Gierlinger, Michaela Kreuzer, Julia Schrempf, Roland Gitter, Christoph Prandstetter, Gerald Tulzer, Rudolf Mair
OBJECTIVES: Patients with hypoplastic left heart syndrome or related malformations are predominantly treated with a 3-stage palliation. Anatomic or physiologic problems can lead to unplanned additional surgical or catheter interventions during single ventricle palliation. Changes in operative technique may have an impact on the reoperation rate. METHODS: Between 1997 and 2014, 317 Norwood procedures were performed at our centre. A retrospective single centre investigation was carried out concerning incidence, timing, indication and type of unplanned interstage cardiac reoperations and catheter interventions during follow-up of Norwood patients...
April 11, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28401869/leadless-pacemaker-implantation-in-a-patient-with-complex-congenital-heart-disease-and-limited-vascular-access
#11
Paolo Ferrero, Michael Yeong, Emilia D'Elia, Edward Duncan, Alan Graham Stuart
Management of rhythm related issues might be particularly challenging in patients with congenital heart disease due to complex anatomy and restricted vascular access. The leadless technology appears a suitable and attractive alternative for this population. We describe a patient with single ventricle physiology who successfully underwent implantation of a leadless pacemaker.
November 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/28395671/longitudinal-assessment-of-right-ventricular-structure-and-function-by-cardiovascular-magnetic-resonance-in-breast-cancer-patients-treated-with-trastuzumab-a-prospective-observational-study
#12
Ashita Barthur, Christine Brezden-Masley, Kim A Connelly, Vinita Dhir, Kelvin K W Chan, Rashida Haq, Anish Kirpalani, Joseph J Barfett, Laura Jimenez-Juan, Gauri R Karur, Djeven P Deva, Andrew T Yan
BACKGROUND: There are limited data on the effects of trastuzumab on the right ventricle (RV). Therefore, we sought to evaluate the temporal changes in right ventricular (RV) structure and function as measured by cardiovascular magnetic resonance (CMR), and their relationship with left ventricular (LV) structure and function in breast cancer patients treated with trastuzumab. METHODS: Prospective, longitudinal, observational study involving 41 women with HER2+ breast cancer who underwent serial CMR at baseline, 6, 12, and 18 months after initiation of trastuzumab...
April 10, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28393581/the-effect-of-transport-on-the-physiologic-stability-of-neonates-withductal-dependent-single-ventricle-lesions
#13
Silvestre R Duran, Sanjeev Aggarwal, Girija Natarajan
OBJECTIVE: To compare the status of infants with hypoplastic left heart syndrome (HLHS) or pulmonary atresia-hypoplastic right heart (PA-HRH) before and following transport using the validated Transport Risk Index of Physiologic Stability (TRIPS) score. METHODS: In this retrospective review of infants with HLHS or PA-HRH transported to a Children's Hospital by a pediatric transport team, an increase in TRIPS score (temperature, blood pressure, respiratory status, and response to stimuli) following transport was defined as deterioration...
April 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28392323/long-term-beneficial-effect-of-neurotrophic-factors-secreting-mesenchymal-stem-cells-transplantation-in-the-btbr-mouse-model-of-autism
#14
Nisim Perets, Hadar Segal-Gavish, Yael Gothelf, Ran Barzilay, Yael Barhum, Natalie Abramov, Stav Hertz, Darya Morozov, Michael London, Daniel Offen
Autism spectrum disorders (ASD) are neurodevelopmental disabilities characterized by severe impairment in social communication skills and restricted, repetitive behaviors. We have previously shown that a single transplantation of mesenchymal stem cells (MSC) into the cerebral lateral ventricles of BTBR autistic-like mice resulted in an improvement across all diagnostic criteria of ASD. We suggested that brain-derived neurotrophic factor (BDNF), a protein which supports the survival and regeneration of neurons secreted by MSC, largely contributed to the beneficial behavioral effect...
April 6, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28391023/third-ventricular-cerebrospinal-fluid-cysts-of-thalamic-origin-review-of-embryological-origin-presentation-and-management-strategies-with-a-case-series
#15
REVIEW
Ciro A Vasquez, Michael Casey, Zach Folzenlogen, D Ryan Ormond, Kevin Lillehei, A Samy Youssef
OBJECTIVE: Third ventricular cerebrospinal fluid (CSF) cysts of thalamic origin are very rare. The objective of this study is to review their possible pathogenesis, clinical presentation and management strategies with a case series describing management via an endoscopic approach with fenestration using a single burr hole technique. METHODS: A systematic literature review of reported cases of thalamic cysts was conducted with further meta-analysis of CSF cysts that involve the third ventricle...
April 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28386502/transumbilical-surgery-for-duodenal-stenosis-in-a-child-with-situs-inversus-the-first-report
#16
Isamu Saeki, Yu Ueno, Wataru Mukai, Reisuke Imaji, Takashi Akiyama
Background. Situs inversus is a rare congenital anomaly with a reported incidence of only 1 in 5,000 to 10,000 live births. Congenital duodenal stenosis complicated with situs inversus is an even rarer entity. Case Presentation. A 1-year-old girl with situs inversus who had undergone a hemi-Fontan procedure against a single ventricle in our hospital was referred to our department for vomiting and failure to thrive. An upper gastrointestinal contrast study and endoscopy revealed duodenal stenosis. A transumbilical radical operation as a minimally invasive surgery was successfully performed...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28382386/effects-of-hemoglobin-level-on-myocardial-washout-rate-of-thallium-201-in-patients-with-normal-myocardial-perfusion-assessed-by-single-photon-emission-computed-tomography
#17
Satoshi Kurisu, Yoji Sumimoto, Hiroki Ikenaga, Noriaki Watanabe, Ken Ishibashi, Yoshihiro Dohi, Yukihiro Fukuda, Yasuki Kihara
Myocardial perfusion single-photon emission computed tomography (SPECT) is often performed even in patients with suspected coronary artery disease complicated by anemia. We assessed the effects of hemoglobin level on myocardial washout rate of Thallium-201 (Tl-201) in patients with normal myocardial perfusion assessed by SPECT. The study population consisted of 231 patients with summed stress score of zero on SPECT. The mean myocardial washout rate of Tl-201 in the left ventricle was calculated from the stress and the redistribution Bull's eye map...
April 5, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28379385/five-year-evolution-of-mild-aortic-regurgitation-following-transcatheter-aortic-valve-implantation-early-insights-from-a-single-centre-experience
#18
Nicola Buzzatti, Alessandro Castiglioni, Eustachio Agricola, Marta Barletta, Stefano Stella, Francesco Giannini, Damiano Regazzoli, Antonio Mangieri, Marco Ancona, Pietro Spagnolo, Alaide Chieffo, Matteo Montorfano, Ottavio Alfieri, Antonio Colombo, Azeem Latib
OBJECTIVES: To assess the follow-up evolution and impact of mild aortic regurgitation (1 + AR) following transcatheter aortic valve implantation (TAVI). METHODS: We evaluated the follow-up outcomes and AR evolution of 558 patients affected by native aortic stenosis who underwent TAVI with residual AR ≤ 1+. RESULTS: No residual AR was found in 294 (52.7%) patients, whereas 1 + AR was found in 264 (47.3%) patients. At 5.5 years, freedom from all-cause mortality (56...
March 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28369323/common-atrioventricular-valve-failure-during-single-ventricle-palliation%C3%A2
#19
Gregory King, Thomas L Gentles, David S Winlaw, Rachel Cordina, Andrew Bullock, Leeanne E Grigg, Nelson Alphonso, Dorothy J Radford, Diana Zannino, Edward Buratto, Yves d'Udekem
OBJECTIVES: To determine the risk of atrioventricular valve failure (valve intervention or moderate or greater regurgitation) during the lifetime of patients with single ventricle physiology and common atrioventricular valve. METHODS: Patients' data were extracted from an existing bi-national, population based registry. A retrospective review of their medical records was undertaken to determine the incidence of atrioventricular valve repair/replacement or moderate or greater regurgitation...
March 23, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28365652/interstage-home-monitoring-after-newborn-first-stage-palliation-for-hypoplastic-left-heart-syndrome-family-education-strategies
#20
Jo Ann Nieves, Karen Uzark, Nancy A Rudd, Jennifer Strawn, Anne Schmelzer, Nancy Dobrolet
Children born with hypoplastic left heart syndrome are at high risk for serious morbidity, growth failure, and mortality during the interstage period, which is the time from discharge home after first-stage hypoplastic left heart syndrome palliation until the second-stage surgical intervention. The single-ventricle circulatory physiology is complex, fragile, and potentially unstable. Multicenter initiatives have been successfully implemented to improve outcomes and optimize growth and survival during the interstage period...
April 2017: Critical Care Nurse
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