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https://www.readbyqxmd.com/read/28648667/simultaneous-recordings-of-intrinsic-cardiac-nerve-activities-and-skin-sympathetic-nerve-activities-from-human-patients-during-the-postoperative-period
#1
Mark J Shen, Arthur C Coffey, Susan Straka, David E Adams, David B Wagner, Richard J Kovacs, Michael Clark, Changyu Shen, Lan S Chen, Thomas H Everett, Shien-Fong Lin, Peng-Sheng Chen
BACKGROUND: Intrinsic cardiac nerve activities (ICNA) and the skin nerve activities (SKNA) are both associated with cardiac arrhythmias in dogs. OBJECTIVE: To test the hypothesis that ICNA and SKNA correlate with postoperative cardiac arrhythmias in humans. METHODS: Eleven patients (60±13 years old; 4 female) were enrolled in this study. Electrical signals were simultaneously recorded from electrocardiogram (ECG) patch electrodes on the chest wall and from two temporary pacing wires placed during open heart surgery on the left atrial epicardial fat pad...
June 22, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28623015/inadvertent-left-ventricular-pacing-and-perforation-by-a-temporary-pacemaker
#2
Jingyang Lin, Lihong Wang, Yan Zhao
Myocardial perforation by pacemaker electrode is a very serious complication. Usually, the pacemaker electrode perforates the right ventricle, but rarely the left ventricular myocardium. We describe an 82-year-old female patient who presented with left ventricular pacing after temporary pacemaker implantation and was diagnosed with myocardial perforation. Emergency thoracotomy showed that the exact position of the cardiac perforation was close to the left ventricular apex. Perforation of the left ventricular free wall by an electrode sometimes progresses slowly...
June 3, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28582500/comparison-of-epicardial-vs-endocardial-reimplantation-in-pacemaker-dependent-patients-with-device-infection
#3
Tilman Perrin, Baptiste Maille, Coralie Lemoine, Noémie Resseguier, Frédéric Franceschi, Linda Koutbi, Jérôme Hourdain, Jean-Claude Deharo
Aims: Reimplantation of cardiac implantable electronic devices (CIEDs) after extraction due to device infection is a major issue in pacemaker-dependent patients. We compared in-hospital and long-term outcomes with two techniques: epicardial reimplantation (EPI) before CIED extraction and temporary pacing (TP) with a view to delayed endocardial reimplantation. Methods and results: Two cohorts of consecutive pacemaker-dependent patients who underwent transvenous lead extraction at our tertiary centre were included in this retrospective cohort study...
June 3, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28578350/ex-utero-intrapartum-treatment-to-ventricular-pacing-a-novel-delivery-strategy-for-complete-atrioventricular-block-with-severe-bradycardia
#4
Bettina F Cuneo, Max B Mitchell, Ahmed I Marwan, Matthew Green, Johannes C von Alvensleben, Regina Reynolds, Timothy M Crombleholme, Henry L Galan
Fetuses with anti-SSA-mediated complete atrioventricular block (CAVB) are at high risk for perinatal death if they present at <20 weeks of gestation and develop ventricular rates of <55 beats per minute (bpm), cardiac dysfunction, or hydrops [Izmirly et al.: Circulation 2011;124:1927-1935; Jaeggi et al.: J Am Coll Cardiol 2002;39:130-137; Eliasson et al.: Circulation 2011;124:1919-1926]. After our experience with two such fetuses who died with pulseless electrical activity despite being paced within 30 min of birth, we performed an ex utero intrapartum treatment procedure to ventricular pacing on a 36-week CAVB fetus with cardiac dysfunction, mild hydrops, and a ventricular rate of 46 bpm...
June 3, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28514640/digital-disruption-syndromes
#5
Clair Sullivan, Andrew Staib
The digital transformation of hospitals in Australia is occurring rapidly in order to facilitate innovation and improve efficiency. Rapid transformation can cause temporary disruption of hospital workflows and staff as processes are adapted to the new digital workflows. The aim of this paper is to outline various types of digital disruption and some strategies for effective management. A large tertiary university hospital recently underwent a rapid, successful roll-out of an integrated electronic medical record (EMR)...
May 18, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28506648/antegrade-versus-continuous-retrograde-del-nido-cardioplegia-in-the-david-i-operation
#6
Xuan Jiang, Tianxiang Gu, Enyi Shi, Chun Wang, Zongyi Xiu, Guangwei Zhang
BACKGROUND: The efficacy of continuous retrograde del Nido cardioplegia for myocardial protection is still controversial. We hypothesised that antegrade and retrograde cardioplegia offer equivalent safety for myocardial protection in the David I procedure. METHODS: We retrospectively reviewed 33 patients undergoing the David I operation with antegrade or retrograde del Nido solution from June 2014 to January 2016. The outcomes were compared. The follow-up was 1 month to 15 months...
April 26, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28484651/surgical-repair-of-subacute-right-ventricular-perforation-after-pacemaker-implantation
#7
Takeshi Oda, Takanori Kono, Keiichi Akaiwa, Yasushi Takahara, Chie Yasuoka, Katsuhiko Nakamura
We report an 84-year-old woman who presented with right ventricular perforation 4 days after pacemaker implantation for syncope due to sick sinus syndrome. Median sternotomy revealed no pericardial effusion, but the pacing lead had penetrated the right ventricle and pericardium. When the pleura was opened, the tip of the lead was seen in the visceral pleura. The lead was cut in the pericardial cavity and extracted from the left subclavian wound together with the generator. The right ventricular perforation was sutured and a temporary pacing lead was placed on the right ventricular wall intraoperatively...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28441238/diaphragm-activation-in-ventilated-patients-using-a-novel-transvenous-phrenic-nerve-pacing-catheter
#8
Steven Reynolds, Adrian Ebner, Tracy Meffen, Viral Thakkar, Matt Gani, Kaity Taylor, Linda Clark, Gautam Sadarangani, Ramasamy Meyyappan, Rodrigo Sandoval, Elizabeth Rohrs, Joaquín A Hoffer
OBJECTIVES: Over 30% of critically ill patients on positive-pressure mechanical ventilation have difficulty weaning from the ventilator, many of whom acquire ventilator-induced diaphragm dysfunction. Temporary transvenous phrenic nerve pacing using a novel electrode-bearing catheter may provide a means to prevent diaphragm atrophy, to strengthen an atrophied diaphragm, and mitigate the harms of mechanical ventilation. We tested the initial safety, feasibility, and impact on ventilation of this novel approach...
July 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28400936/clinical-profile-and-management-of-poisoning-with-suicide-tree-an-observational-study
#9
M Suraj Menon, Prasantha Kumar, C I Jayachandran
INTRODUCTION: The clinical features, management, and the associations of dosage in poisoning with the cardiotoxic plant Cerbera odollam (suicide tree), responsible for more than half of plant poisoning deaths in the South Indian State of Kerala alone, have not been evaluated. There are only few studies on its clinical features and none on the usage of cardiac pacing in its management, given its rarity in the Western world. We depend on data for similar toxins to form our management protocols...
October 2016: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/28365285/magnetic-stimuli-responsive-chitosan-based-drug-delivery-biocomposite-for-multiple-triggered-release
#10
Michael Harris, Hamza Ahmed, Brandico Barr, David LeVine, Leslie Pace, Ankita Mohapatra, Bashir Morshed, Joel D Bumgardner, Jessica Amber Jennings
Stimuli responsive biomaterials offer a unique advantage over traditional local drug delivery systems in that the drug elution rate can be controllably increased to combat developing symptomology or maintain high local elution levels for disease treatment. In this study, superparamagnetic Fe3O4 nanoparticles and the antibiotic vancomycin were loaded into chitosan microbeads cross-linked with varying lengths of polyethylene glycol dimethacrylate. Beads were characterized using degradation, biocompatibility, and elution studies with successive magnetic stimulations at multiple field strengths and frequencies...
March 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28213055/electrophysiological-measurements-that-can-explain-and-guide-temporary-accelerated-pacing-to-avert-re-occurrence-of-torsade-de-pointes-arrhythmias-in-the-canine-chronic-atrioventricular-block-model
#11
Sofieke C Wijers, Alexandre Bossu, Albert Dunnink, Jet D M Beekman, Rosanne Varkevisser, Alfonso Aranda Hernández, Mathias Meine, Marc A Vos
BACKGROUND: Pacing at higher rates is known to suppress torsade de pointes (TdP) arrhythmias. Nevertheless, exact application and mechanism need further clarification. In the anesthetized canine chronic atrioventricular block model, ventricular remodeling is responsible for a high and reproducible incidence of TdP upon a challenge with dofetilide. OBJECTIVE: We used this model to investigate by what mechanism accelerated pacing averts TdP and what repolarization parameter could be used to guide temporary accelerated pacing (TAP)...
May 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28131641/retrospective-comparative-analysis-of-cardiovascular-implantable-electronic-device-infections-with-and-without-the-use-of-antibacterial-envelopes
#12
COMPARATIVE STUDY
A Hassoun, E D Thottacherry, M Raja, M Scully, A Azarbal
BACKGROUND: Cardiovascular implantable electronic device (CIED) infections are associated with morbidity and mortality. Peri-operative systemic intravenous antibiotic prophylaxis reduces the rate of CIED infections. AIGISRx, a polymer envelope implanted with the CIED, releases minocycline and rifampin, and has been introduced to reduce infections. METHODS: Retrospective review of 184 patients who underwent CIED implantation was conducted. Ninety-two patients were implanted with an AIGISRx envelope (AIGISRx group) and 92 patients were not implanted with an AIGISRx envelope (control group)...
March 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28088306/ventricular-fibrillation-occurring-after-atrioventricular-node-ablation-despite-minimal-difference-between-pre-and-post-ablation-heart-rates
#13
F Squara, G Theodore, D Scarlatti, E Ferrari
We report the case of an 82-year-old man presenting with ventricular fibrillation (VF) occurring acutely after atrioventricular node (AVN) ablation. This patient had severe valvular cardiomyopathy, chronic atrial fibrillation (AF), and underwent prior to the AVN ablation a biventricular implantable cardiac defibrillator positioning. The VF was successfully cardioverted with one external electrical shock. What makes this presentation original is that the pre-ablation spontaneous heart rate in AF was slow (84 bpm), and that VF occurred after ablation despite a minimal heart rate drop of only 14 bpm...
February 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28007085/deciphering-the-black-box-of-food-allergy-mechanisms
#14
REVIEW
Vanitha Sampath, Dana Tupa, Michelle Toft Graham, Talal A Chatila, Jonathan M Spergel, Kari C Nadeau
OBJECTIVE: To review our current understanding of immunotherapy, the immune mechanisms underlying food allergy, and the methodological advances that are furthering our understanding of the role of immune cells and other molecules in mediating food allergies. DATA SOURCES: Literature searches were performed using the following combination of terms: allergy, immunotherapy, food, and mechanisms. Data from randomized clinical studies using state-of-the-art mechanistic tools were prioritized...
January 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/27989870/time-course-of-electrical-remodeling-of-native-conduction-after-cardiac-resynchronization-therapy-and-its-impact-on-clinical-outcome
#15
Marta Cvijić, David Žižek, Bor Antolič, Igor Zupan
BACKGROUND: Cardiac resynchronization therapy (CRT) induces structural and electrical remodeling (ER) in heart failure (HF) patients. Our aim was to assess time course of ER of native conduction and mechanical remodeling after CRT and impact of CRT-induced ER on clinical outcome. METHODS AND RESULTS: We prospectively included 62 patients (aged 66 ± 10 years). Echocardiographic and ECG parameters were measured at baseline and 1, 3, 6, 9, and 12 months after implantation...
March 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/27970231/tct-840-first-in-human-experience-with-a-novel-active-fixation-temporary-pacing-lead-safety-and-efficacy-of-the-tempo-lead
#16
Mark Webster, Sanjeevan Pasupati, Nigel Lever, Martin Stiles
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27941748/congenital-complete-heart-block-presenting-in-pregnancy-a-case-report
#17
S Rouf, A W Chowdhury
Congenital complete heart block presenting for the first time in pregnancy is a rare occurrence posing a therapeutic challenge. We present a case of unpaced preexisting congenital complete heart block in pregnancy diagnosed for the first time during routine prenatal care at her early weeks of gestation. Our patient was asymptomatic and haemodynamically stable and was managed conservatively with a multidisciplinary term approach. Intrauterine growth retardation (IUGR) was present and she was delivered by ceasarean section at term for foetal distress with IUGR...
October 2016: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/27891405/complete-heart-block-in-pregnancy-a-report-of-emergency-caesarean-section-in-a-parturient-without-pacemaker
#18
Vandana Mohapatra, Aparajita Panda, Satyanarayan Behera, Jagadish Chandra Behera
Management of women with Complete Heart Block (CHB) presenting without pacing, during pregnancy and labour is debatable. Temporary pacemakers have been routinely inserted for labour and birth probably to withstand any haemodynamic variations. However, due to lack of large scale prospective studies, the necessity of this procedure has not been objectively assessed. Also, the most appropriate anaesthetic technique for caesarean section in women with CHB is yet to be clarified. We report herein the case of a pregnant woman with CHB who had uneventful emergency caesarean delivery under spinal anaesthesia without temporary pacing...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27886096/service-demand-discovery-mechanism-for-mobile-social-networks
#19
Dapeng Wu, Junjie Yan, Honggang Wang, Ruyan Wang
In the last few years, the service demand for wireless data over mobile networks has continually been soaring at a rapid pace. Thereinto, in Mobile Social Networks (MSNs), users can discover adjacent users for establishing temporary local connection and thus sharing already downloaded contents with each other to offload the service demand. Due to the partitioned topology, intermittent connection and social feature in such a network, the service demand discovery is challenging. In particular, the service demand discovery is exploited to identify the best relay user through the service registration, service selection and service activation...
November 23, 2016: Sensors
https://www.readbyqxmd.com/read/27885444/emergency-pacing-via-the-umbilical-vein-and-subsequent-permanent-pacemaker-implantation-in-a-neonate
#20
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.
January 2017: Pediatric Cardiology
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