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Pacemaker syndrome

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https://www.readbyqxmd.com/read/28100973/endovascular-treatment-of-superior-vena-cava-syndrome-via-balloon-in-balloon-catheter-technique-with-a-palmaz-stent
#1
Wassim Shatila, Abdelkader Almanfi, Mehran Massumi, Kathryn G Dougherty, Dhaval R Parekh, Neil E Strickman
Superior vena cava syndrome is a well-known disease entity that carries substantial rates of morbidity and mortality. Although most cases of superior vena cava syndrome are secondary to a malignant process, additional causes (such as mediastinal fibrosis, pacemaker lead implantation, or central venous catheter placement) have been reported. Multiple treatment options include percutaneous transluminal angioplasty, stent implantation, thrombolysis, mechanical thrombectomy, and venous grafting. We present a case of superior vena cava syndrome in a symptomatic 30-year-old woman who obtained complete relief of obstruction and marked symptomatic improvement through venoplasty and stenting, aided by our use of a balloon-in-balloon catheter system...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28089344/heparan-sulfate-storage-in-the-cardiac-conduction-system-triggers-atrioventricular-block
#2
Rie Kato, Hiroaki Miyahara, Tatsuya Kawano, Atsuko Matsuzuka, Kimiko Noda, Tatsuro Izumi
OBJECTIVE: To elucidate the novel biological functions of heparan sulfate (HS) by clinic-pathologically studying a patient with paroxysmal atrioventricular (AV) block. PATIENT: A long-surviving male patient with Sanfilippo syndrome type A presented with paroxysmal AV block at age 33years. He then survived another 2.5years after the onset of paroxysmal AV block and pacemaker implantation. METHODS AND RESULTS: His cardiac histopathological examination at autopsy showed HS storage in the cardiac conduction system (CCS), especially in the atrioventricular node (AVN)-His bundle branches...
January 12, 2017: Brain & Development
https://www.readbyqxmd.com/read/28068928/newly-recognized-cerebral-infarctions-on-postmortem-imaging-a-report-of-three-cases-with-systemic-infectious-disease
#3
Sakon Noriki, Kazuyuki Kinoshita, Kunihiro Inai, Toyohiko Sakai, Hirohiko Kimura, Takahiro Yamauchi, Masayuki Iwano, Hironobu Naiki
BACKGROUND: Postmortem imaging (PMI) refers to the imaging of cadavers by computed tomography (CT) and/or magnetic resonance imaging (MRI). Three cases of cerebral infarctions that were not found during life but were newly recognized on PMI and were associated with severe systemic infections are presented. CASE PRESENTATIONS: An 81-year-old woman with a pacemaker and slightly impaired liver function presented with fever. Imaging suggested interstitial pneumonia and an iliopsoas abscess, and blood tests showed liver dysfunction and disseminated intravascular coagulation (DIC)...
January 10, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28039212/single-lead-atrial-vs-dual-chamber-pacing-in-sick-sinus-syndrome-extended-register-based-follow-up-in-the-danpace-trial
#4
Niels H Brandt, Rikke Esberg Kirkfeldt, Jens Cosedis Nielsen, Leif Spange Mortensen, Gunnar Vagn Hagemann Jensen, Jens Brock Johansen, Ketil Haugan
AIMS: The DANPACE trial randomized patients with sick sinus syndrome (SSS) to single lead atrial (AAIR) or dual chamber (DDDR) pacemaker (PM). After 5 years follow-up, no difference in overall survival, stroke or heart failure (HF) was observed, whereas risk of atrial fibrillation (AF) and PM reoperation were increased in the AAIR group. The present study aimed to investigate very long term risk of death, AF hospitalization, stroke, HF and rate of change in pacing mode using national register-based data...
December 29, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28028946/bachmann-s-bundle-pacing-not-only-improves-interatrial-conduction-but-also-reduces-the-need-for-ventricular-pacing
#5
Agnieszka Sławuta, Magdalena Kliś, Przemysław Skoczyński, Tomasz Bańkowski, Joanna Moszczyńska-Stulin, Jacek Gajek
BACKGROUND: Patients treated for sick sinus syndrome may have interatrial conduction disorder leading to atrial fibrillation. OBJECTIVES: This study was aimed to assess the influence of the atrial pacing site on interatrial and atrioventricular conduction as well as the percentage of ventricular pacing in patients with sick sinus syndrome implanted with atrioventricular pacemaker. MATERIAL AND METHODS: The study population: 96 patients (58 females, 38 males) aged 74...
September 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28007450/a-review-of-open-and-endovascular-treatment-of-superior-vena-cava-syndrome-of-benign-aetiology
#6
REVIEW
G S Sfyroeras, C N Antonopoulos, G Mantas, K G Moulakakis, J D Kakisis, E Brountzos, C R Lattimer, G Geroulakos
BACKGROUND: The widespread use of central venous catheters, ports, pacemakers, and defibrillators has increased the incidence of benign superior vena cava syndrome (SVCS). This study aimed at reviewing the results of open and endovascular treatment of SVCS. METHOD: Medical literature databases were searched for relevant studies. Studies with more than five adult patients, reporting separate results for the SVC were included. Nine studies reported the results of endovascular treatment of SVCS including 136 patients followed up for a mean of 11-48 months...
December 19, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27996100/complications-with-the-micra-tps-pacemaker-system-persistent-complete-heart-block-and-late-capture-failure
#7
Niels Holm, Andreas Müller, Rainer Zbinden
A Medtronic MICRA transcatheter pacing system (TPS) was implanted in an 86-year old patient with sick sinus syndrome and left bundle branch block after transfemoral aortic valve implantation. During implantation she developed a persistent complete heart block due to manipulation with the large bore delivery catheter. Two weeks later, acute pacemaker dysfunction occurred due to massive increase of pacing threshold and impedance without obvious pacemaker dislocation or myocardial perforation. Recurrent capture failure was seen with pacing output set at 5 V / 1...
December 20, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27989047/results-of-contemporary-valve-surgery-in-patients-with-carcinoid-heart-disease
#8
Thomas Kuntze, Tamer Owais, Maria-Anna Secknus, Daniel Kaemmerer, Richard Baum, Evaldas Girdauskas
BACKGROUND: Carcinoid tumor is a slow-growing type of neuroendocrine tumor, originating from enterochromaffin cells and secreting mainly serotonin. The diagnosis is based on clinical symptoms, hormone blood levels, radiological and nuclear imaging, and histological confirmation. However, most patients have metastases at the time of diagnosis because the clinical signs often remain unnoticed or are attributed to other abdominal conditions. In up to 50% of patients the endocardium is affected due to a hormonally active tumor profile...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27968767/safety-of-device-implantation-under-antipatelet-therapy-with-ticagrelor-about-20-cases
#9
W Amara, S Naccache, C Akret, S Cheggour, S M'Zoughi, G Galuscan, A Dompnier
INTRODUCTION: Management of antiplatelet therapy at the time of device implantation remains controversial. This study aimed to assess the risk of bleeding complications in patients receiving ticagrelor at the time of cardiac device surgery. METHODS: We performed a multicentre (N=4), retrospective study from January 2015 to January 2016. The survey included all patients (pts) treated with ticagrelor before undergoing pacemaker, implantable-cardioverter defibrillator (ICD) implantation or generator replacement...
November 2016: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/27936942/implantable-cardioverter-defibrillator-treatment-in-long-qt-syndrome-patients-a-national-study-on-adherence-to-international-guidelines
#10
Emilia Sundström, Steen M Jensen, Ulla-Britt Diamant, Annika Rydberg
OBJECTIVES: Implantable cardioverter defibrillator (ICD) treatment is effective among long QT syndrome (LQTS) patients at a high risk of sudden cardiac death. Previous studies show that the international guidelines are not always followed, and that risk stratification may be based on genotype rather than individual risk profile. We analysed data from the Swedish ICD & Pacemaker Registry and medical records to examine how international guidelines were followed with regards to phenotype and genotype...
December 30, 2016: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/27910058/gene-delivery-for-the-generation-of-bioartificial-pacemaker
#11
Patrick K W Chan, Ronald A Li
Electronic pacemakers have been used in patients with heart rhythm disorders for device-supported pacing. While effective, there are such shortcomings as limited battery life, permanent implantation of catheters, the lack of autonomic neurohumoral responses, and risks of lead dislodging. Here we describe protocols for establishing porcine models of sick sinus syndrome and complete heart block, and the generation of bioartificial pacemaker by delivering a strategically engineered form of hyperpolarization-activated cyclic nucleotide-gated pacemaker channel protein via somatic gene transfer to convert atrial or ventricular muscle cardiomyocytes into nodal-like cells that rhythmically fire action potentials...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27909513/assessment-of-sinoatrial-node-function-in-patients-with-persistent-and-long-standing-persistent-forms-of-atrial-fibrillation-after-maze-iii-procedure-combined-with-mitral-valve-operation
#12
Kulikov Aleksei A, Bokeria Leo A
RESEARCH OBJECTIVE: Assessment of sinoatrial node function after Maze III procedure combined with a mitral valve operation. METHODS: 100 patients were included in the research with persistent and long-standing persistent forms of atrial fibrillation (AF) and need of operative treatment concerning valve disease. The following preoperative preparation methods were executed to all patients: Electrocardiogram in 12 standard assignments;Two-dimensional echocardiographic with assessment of systolic and diastolic functions of the left ventricle, size of the left atrium and grade of valve disease;Transesophageal echocardiography for exclusion of blood clots in the left atrium and left atrial appendage;Coronary angiography for exclusion of coronary heart disease;Computer tomography for examination of cardiac chambers and anatomic characteristics of pulmonary veins...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909511/internal-jugular-vein-complete-thrombosis-after-dual-chamber-pacemaker-implant
#13
Angelo Placci, Maria Mattioli, Maria Francesca Notarangelo, Gianluca Gonzi, Marco Zardini
Venous thrombosis after pacemaker implant is a known, although often underrecognized condition that can challenge system revision or upgrading, leading occasionally to thromboembolic complications. Several factors are considered to promote thrombus formation. Among them, alteration of blood flow mechanics due to the presence of catheters in the vessel lumen may itself play a pivotal role. Hereby we present the case of a 65-year old men who underwent a dual-chamber pacemaker implant in another institute for sick sinus syndrome by means of left cephalic venous access...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27879000/impact-of-prior-permanent-pacemaker-on-long-term-clinical-outcomes-of-patients-undergoing-percutaneous-coronary-intervention
#14
Yan-Jie Li, Wei-Wei Zhang, Xiao-Xiao Yang, Ning Li, Xing-Biao Qiu, Xin-Kai Qu, Wei-Yi Fang, Yi-Qing Yang, Ruo-Gu Li
BACKGROUND: The impact of permanent pacemaker (PPM) on long-term clinical outcomes of patients undergoing percutaneous coronary intervention (PCI) has not been studied. HYPOTHESIS: PPM may increase heart failure (HF) burden on patients undergoing PCI. METHODS: We recruited consecutive patients undergoing PCI and carried out a nested case-control study. Patients with confirmed PPM undergoing first PCI were identified and matched by age and sex in 1:1 fashion to patients without PPM undergoing first PCI...
November 23, 2016: Clinical Cardiology
https://www.readbyqxmd.com/read/27872996/surgical-repair-of-ventricular-septal-defect-contemporary-results-and-risk-factors-for-a-complicated-course
#15
Maartje Schipper, Martijn G Slieker, Paul H Schoof, Johannes M P J Breur
Surgical closure of the ventricular septal defect is the most commonly performed procedure in pediatric cardiac surgery. There are conflicting data on weight at operation as risk factor for a complicated course. We performed a retrospective evaluation of mortality and morbidity in all patients undergoing surgical ventricular septal defect closure at our institution between 2004 and 2012 to identify risk factor for a complicated course. Multivariate logistic regression modeling was performed to identify risk factors for a complicated course...
November 21, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27871577/lack-of-electrical-interference-between-spinal-cord-stimulators-and-other-implanted-electrical-pulse-devices
#16
Alaa Abd-Elsayed, Ravi Grandhi, Harsh Sachdeva
Spinal cord stimulators (SCSs) have been used for decades to treat chronic pain. SCSs are often used to treat patients with chronic back pain caused by failed back surgery syndrome, patients with complex regional pain syndrome, or individuals who are not candidates for surgery. SCSs are a relative contraindication in patients with another electrical pulse device. We present 3 patients who received SCS despite having another implant in place. There was no interaction between devices. The first case was a patient with failed back surgery syndrome who had an implantable cardiac defibrillator and an SCS implant...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27855640/long-term-secondary-prevention-of-acute-myocardial-infarction-sepat-guidelines-adherence-and-outcome
#17
Constantinos Ergatoudes, Erik Thunström, Annika Rosengren, Lena Björck, Kristina Bengtsson Boström, Kristin Falk, Michael Fu
BACKGROUND: A number of registry studies have reported suboptimal adherence to guidelines for cardiovascular prevention during the first year after acute myocardial infarction (AMI). However, only a few studies have addressed long-term secondary prevention after AMI. This study evaluates prevention guideline adherence and outcome of guideline-directed secondary prevention in patients surviving 2 years after AMI. METHODS: Patients aged 18-85 years at the time of their index AMI were consecutively identified from hospital discharge records between July 2010 and December 2011 in Gothenburg, Sweden...
November 17, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27855459/-port-catheter-associated-superior-vena-cava-syndrome-in-a-patient-with-rectum-cancer
#18
Nikolai Schuelper, Jakob von Herder, Antonius Flohr, Gerald Wulf, Sabine Blaschke
History and clinical findings | A 59-year-old man with metastasized rectum cancer presents at the interdisciplinary emergency care unit with a distinct cyanosis of his face. At that moment the patient himself is out of any complaints. Cyanosis is spreading from his face over his neck to both arms. During the last months he has been treated with folinic acid, 5-fluoruracil, irinotecan and aflibercept via a port-catheter. Except for smoking his further medical history is unremarkable. Examinations | CT-scan shows a port-catheter associated thrombosis with a consecutive superior vena cava syndrome (SCVS)...
November 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27784284/case-report-severe-bradycardia-a-reversible-cause-of-cardio-renal-cerebral-syndrome
#19
Mabel Aoun, Randa Tabbah
BACKGROUND: Cardio-Renal Syndromes were first classified in 2008 and divided into five subtypes. The type 1 Cardio-Renal Syndrome (CRS) is characterized by acute decompensation of heart failure leading to acute kidney injury (AKI). Bradyarrhythmia was not mentioned in the classification as a cause for low cardiac output (CO) in type 1 CRS. Besides, CRS was not previously associated with central nervous system (CNS) injury despite the fact that cardiac, renal and neurological diseases can coexist...
October 26, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27770149/development-of-the-cardiac-pacemaker
#20
Xingqun Liang, Sylvia M Evans, Yunfu Sun
The sinoatrial node (SAN) is the dominant pacemaker of the heart. Abnormalities in SAN formation and function can cause sinus arrhythmia, including sick sinus syndrome and sudden death. A better understanding of genes and signaling pathways that regulate SAN development and function is essential to develop more effective treatment to sinus arrhythmia, including biological pacemakers. In this review, we briefly summarize the key processes of SAN morphogenesis during development, and focus on the transcriptional network that drives SAN development...
October 21, 2016: Cellular and Molecular Life Sciences: CMLS
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