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Pacemaker programming

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https://www.readbyqxmd.com/read/28554512/functional-atrial-undersensing-associated-with-device-algorithm-promoting-av-conduction
#1
Pasquale Crea, Angela Nicotera, Dalia Di Nunzio, Giuseppe Picciolo
A 58-year-old woman received a dual chamber pacemaker (Medtronic) for sick sinus syndrome. Given intact AV conduction the Managed Ventricular Pacing mode algorithm (MVP) was programmed. The day after, she suffered from palpitations. Her ECG showed a possible loss of atrial capture accompanied by atrial undersensing. Telemetry-supported pacemaker control confirmed the loss of capture. Undersensing of atrial signal was functional, related to long atrial refractory period in MVP mode algorithm. Device algorithms could induce false suspicions...
May 18, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28484359/evaluation-of-congenital-heart-defects-treatment-options-establishment-of-pediatric-cardiology-cardiosurgery-in-bosnia-and-herzegovina
#2
REVIEW
Zijo Begic, Sanko Pandur, Edo Omerbasic, Almira Kadic, Mirza Halimic
INTRODUCTION: Modern pediatric cardiology mainly deals with congenital heart defects (CHD), as the most common congenital anomalies. In most cases CHD requires surgical or interventional treatment. GOAL: The goal of the research was to evaluate CHD treatment at Pediatric Clinic, University Clinical Center (UCC) Sarajevo, Bosnia and Herzegovina (B&H). UCC Sarajevo is the only institution in B&H where cardiac treatment of CHD in pediatric population is performed. Pediatric cardiosurgery has started to develop in Bosnia and Herzegovina in April 1997...
March 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/28479089/factors-affecting-ventriculophasic-response-an-investigation-in-patients-with-permanent-pacemaker
#3
Mohammad Ali Akbarzadeh, Morteza Safi, Soudeh Bayatbayatani, Isa Khaheshi, Mohammadreza Naderian
BACKGROUND: Ventriculophasic response (VR) refers to the shortening of the atrial cycle length (P-P-interval) that occurs during the heart block when a QRS complex is interposed between two P-waves. The aim of this study was to determine the factors affecting this phenomenon. METHODS: Thirty patients with high grade heart block treated with dual chamber pacemaker were studied. The pacer function of the patients' device was temporarily programmed to the ventricular-inhibited mode at 30 pulses per minute...
April 28, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28471510/centers-for-medicare-and-medicaid-services-readmission-reports-inaccurately-describe-an-institution-s-decompensated-heart-failure-admissions
#4
Zachary L Cox, Pikki Lai, Connie M Lewis, Daniel J Lenihan
Hospitals typically use Center for Medicare and Medicaid Services' (CMS) Hospital Readmission Reduction Program (HRRP) administrative reports as the standard of heart failure (HF) admission quantification. We aimed to evaluate the HF admission population identified by CMS HRRP definition of HF hospital admissions compared with a clinically based HF definition. We evaluated all hospital admissions at an academic medical center over 16 months in patients with Medicare fee-for service benefits and age ≥65 years...
May 4, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28430113/should-physicians-instead-of-industry-representatives-be-the-main-actor-of-cardiac-implantable-electronic-device-follow-up-super-follow-up
#5
Çağın Mustafa Üreyen, Cem Yunus Baş, İsa Öner Yüksel, Görkem Kuş, Göksel Çağırcı, Şakir Arslan
OBJECTIVE: This retrospective study sought to research the adequacy of the follow-up and optimization of cardiac implantable electronic devices (CIEDs) performed by industry representatives. METHODS: A total of 403 consecutive patients (35% females; median age, 67 years; age range 18-97 years) with either pacemakers (n=246), implantable cardioverter-defibrillators (ICDs), (n=117) or cardiac resynchronization therapy with defibrillator (CRT-D) (n=40) applied to our hospital's outpatient pacemaker clinic for follow-up...
April 19, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28413855/frequency-of-pacemaker-malfunction-associated-with-monopolar-electrosurgery-during-pulse-generator-replacement-or-upgrade-surgery
#6
Yun Lin, Daniel P Melby, Balaji Krishnan, Selcuk Adabag, Venkatakrishna Tholakanahalli, Jian-Ming Li
PURPOSE: The aim of this study is to investigate the frequency of electrosurgery-related pacemaker malfunction. METHODS: A retrospective study was conducted to investigate electrosurgery-related pacemaker malfunction in consecutive patients undergoing pulse generator (PG) replacement or upgrade from two large hospitals in Minneapolis, MN between January 2011 and January 2014. The occurrence of this pacemaker malfunction was then studied by using MAUDE database for all four major device vendors...
April 17, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28405096/cardiac-rehabilitation-for-a-skydiver-after-aortic-valve-replacement-for-pure-aortic-regurgitation-and-resection-of-the-ascending-aorta-complicated-by-active-infective-endocarditis-and-heart-block-requiring-a-pacemaker
#7
Tonja R Solomon, Sandra DeJong, Tim Bilbrey, Pasquale Carbone, Mark Campbell, Robert D Parker, Alessandra Lira, Diogo Amarante, Jeffrey M Schussler, Jenny Adams
A professional skydiver underwent aortic valve and ascending aorta replacement complicated by infective endocarditis with root abscess and pacemaker implantation. He then enrolled in the Baylor Heart and Vascular Hospital cardiac rehabilitation (CR) program as part of its specificity of testing and exercise training facility. He performed specific skydiving cardiovascular and muscular strength tests at the beginning and the end of the CR program. His pacemaker was interrogated to ascertain any arrhythmias or lead displacement over the course of the CR program...
April 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28398470/presyncopal-episodes-after-implantation-of-dual-chamber-pacemaker-programmed-in-safer-pacing-mode
#8
Rodrigo San Antonio, Eva M Benito, Jose M Tolosana, M Emilce Trucco, Lluís Mont
No abstract text is available yet for this article.
May 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28349399/imaging-of-chromosome-dynamics-in-mouse-testis-tissue-by-immuno-fish
#9
Harry Scherthan
The mouse (Mus musculus) represents the central mammalian genetic model system for biomedical and developmental research. Mutant mouse models have provided important insights into chromosome dynamics during the complex meiotic differentiation program that compensates for the genome doubling at fertilization. Homologous chromosomes (homologues) undergo dynamic pairing and recombine during first meiotic prophase before they become partitioned into four haploid sets by two consecutive meiotic divisions that lack an intervening S-phase...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28262258/safer-and-escape-junctional-rhythm-a-singular-trigger-for-pacemaker-mediated-tachycardia
#10
Pasquale Crea, Teresa Crea, Giuseppe Picciolo, Francesco Luzza
A 70-year-old man, who previously received a dual chamber pacemaker for paroxysmal AV block (Sorin Symphony DR 2550), was noted on telemetry to have multiple episodes of rapid ventricular pacing at approximately 120bpm. Evaluation of the telemetry strips revealed that all of the rapid ventricular pacing episodes were initiated by brief runs of escape junctional rhythm. Programmed bradycardia parameters were AAI SafeR with lower rate limit of 50bpm.
February 20, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28254126/economic-value-and-cost-effectiveness-of%C3%A2-cardiac-resynchronization-therapy-among-patients-with-mild-heart-failure-projections-from-the-reverse-long-term-follow-up
#11
Michael R Gold, Amie Padhiar, Stuart Mealing, Manpreet K Sidhu, Stelios I Tsintzos, William T Abraham
OBJECTIVES: This study investigated the cost effectiveness of early cardiac resynchronization therapy (CRT) implantation among patients with mild heart failure (HF). The differential cost effectiveness between CRT using a defibrillator (CRT-Ds) and CRT using a pacemaker (CRT-P) was also assessed. BACKGROUND: Cardiac resynchronization has been shown to be cost effective in New York Heart Association (NYHA) functional classes III/IV but is less studied in class II HF...
March 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28240694/improving-clinical-outcomes-for-patients-with-class-iii-heart-failure
#12
Melissa Shapiro, Angela Macci Bires, Kristen Waterstram-Rich, Thomas W Cline
Heart failure (HF) is a serious medical problem in the United States and is placing a financial strain on the health care system. It is the leading cause of mortality and as the overall incidence continues to increase, so does the economic impact on the health care system. Innovative treatment options, in the form of disease management programs and implantable cardiac devices, such as the CorVue capable implantable cardioverter defibrillator (ICD) pacemaker, offer the promise of an enhanced quality of life and reduced mortality...
April 2017: Critical Care Nursing Quarterly
https://www.readbyqxmd.com/read/28225684/assessing-the-risks-associated-with-mri-in-patients-with-a-pacemaker-or-defibrillator
#13
MULTICENTER STUDY
Robert J Russo, Heather S Costa, Patricia D Silva, Jeffrey L Anderson, Aysha Arshad, Robert W W Biederman, Noel G Boyle, Jennifer V Frabizzio, Ulrika Birgersdotter-Green, Steven L Higgins, Rachel Lampert, Christian E Machado, Edward T Martin, Andrew L Rivard, Jason C Rubenstein, Raymond H M Schaerf, Jennifer D Schwartz, Dipan J Shah, Gery F Tomassoni, Gail T Tominaga, Allison E Tonkin, Seth Uretsky, Steven D Wolff
BACKGROUND: The presence of a cardiovascular implantable electronic device has long been a contraindication for the performance of magnetic resonance imaging (MRI). We established a prospective registry to determine the risks associated with MRI at a magnetic field strength of 1.5 tesla for patients who had a pacemaker or implantable cardioverter-defibrillator (ICD) that was "non-MRI-conditional" (i.e., not approved by the Food and Drug Administration for MRI scanning). METHODS: Patients in the registry were referred for clinically indicated nonthoracic MRI at a field strength of 1...
February 23, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28224629/clinical-performance-of-magnetic-resonance-imaging-conditional-and-nonconditional-cardiac-implantable-electronic-devices
#14
Anand D Shah, Adarsh U Patel, Andrea Knezevic, Michael H Hoskins, David S Hirsh, Faisal M Merchant, Mikhael F El Chami, David B Delurgio, Anshul M Patel, Angel R Leon, Jonathan J Langberg, Michael S Lloyd
OBJECTIVES: This study compared risks associated with magnetic resonance imaging (MRI) in patients with non-MRI conditional and MRI conditional pacing and defibrillator systems with particular attention to clinically actionable outcomes. BACKGROUND: While recipients of new MRI conditional pacemaker and defibrillator systems may undergo MRI scanning with very low risk, safety and regulatory concerns persist regarding such scanning in recipients of non-MRI conditional systems...
May 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28212920/neonatal-lupus-follow-up-in-infants-with-anti-ssa-ro-antibodies-and-review-of-the-literature
#15
REVIEW
Antonio Alberto Zuppa, Riccardo Riccardi, Simonetta Frezza, Francesca Gallini, Rita Maria Paola Luciano, Giovanni Alighieri, Costantino Romagnoli, Sara De Carolis
Neonatal Lupus Syndrome (NLS) is a distinct clinical entity caused by transplacental passage of maternal anti-SSA/Ro antibodies (Ab). Mothers may have systemic lupus erythematosus, Sjögren syndrome, or other connective tissue disease, or may be completely healthy at the time of giving birth. NLS includes several clinical manifestations: complete congenital heart block (CCHB) and cutaneous lupus are the most common, while hepatobiliary disease, hematological manifestations and central nervous system involvement may occur...
April 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28169434/magnetic-resonance-imaging-in-nondependent-pacemaker-patients-with-pacemakers-and-defibrillators-with-a-nearly-depleted-battery
#16
Hideo Okamura, Deepak Padmanabhan, Robert E Watson, Connie Dalzell, Nancy Acker, Mary Jondal, Abby L Romme, Yong-Mei Cha, Samuel J Asirvatham, Joel P Felmlee, Paul A Friedman
BACKGROUND: Magnetic resonance imaging (MRI) in patients with non-MRI-conditional cardiac implantable electronic devices (CIEDs) has been shown to be safe when performed under closely monitored protocols. However, the safety of MRI in patients with devices with a nearly depleted battery has not been reported. METHODS: Prospective data were collected between January 2008 and May 2015 in patients with non-MRI-conditional CIEDs undergoing clinically indicated MRI under institutional protocol...
May 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28129898/-loss-of-capture-by-myocardial-ischemia-a-case-report
#17
A Sonou, P M Adjagba, M Hounkponou, L Codjo, C Houéhanou-Sonou, S Assani, T Yessoufou, J Sacca, M Houénassi
We report the case of a patient with pacemaker who presented chest pain during exercise followed by fainting. He has a history of arterial hypertension and diabetes. The initial examination was normal; the ventricular stimulation threshold was 1.125 volts (V) and cardiac enzymes were normal. Stress test has reproduced chest pain followed by loss of pacemaker capture and asystole. Coronary angiography showed a tight stenosis of the proximal anterior interventricular artery dilated by a drug-eluting stent. The control of stress test was normal...
February 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28089649/magnetic-resonance-imaging-conditional-devices-luxury-or-real-clinical-need
#18
REVIEW
Sophie I Mavrogeni, George Poulos, Genovefa Kolovou, George Theodorakis
Although the risk of MRI scanning on patients with conventional devices is lower than initially thought, the patient's safety can only be guaranteed when using MRI-conditional devices. The most important modifications in MRI-conditional devices include a) Reduction in ferromagnetic components to reduce magnetic attraction and susceptibility artifacts; b) Replacement of the reed switch by a Hall sensor in order to avoid unpredictable reed switch behavior; c) Lead coil design to minimize lead heating and electrical current induction; d) Filter circuitry to prevent damage to the internal power supply; and e) Dedicated pacemaker programming to prevent inappropriate pacemaker inhibition and competing rhythms...
January 10, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28075105/heart-failure-due-to-reduced-ejection-fraction-medical-management
#19
William E Chavey, Robrt V Hogikyan, R Van Harrison, John M Nicklas
Heart failure is an increasingly common condition resulting in high rates of morbidity and mortality. For patients who have heart failure and reduced ejection fraction, randomized clinical trials demonstrate consistent mortality benefit from angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, direct-acting vasodilators, beta blockers, and aldosterone antagonists. Additionally, some data show benefits from two new classes of drugs: angiotensin receptor blocker/neprilysin inhibitor and sinus node modulator...
January 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/27943391/icd-on-registry-for-perioperative-management-of-cieds-most-require-no-change
#20
MULTICENTER STUDY
Janet Gifford, Karen Larimer, Celia Thomas, Patricia May
BACKGROUND: There is significant variability in the perioperative management of patients with cardiac implanted electronic devices (CIEDs) undergoing procedures requiring electrosurgery. METHODS: We performed a multicenter registry from February 2014 to August 2015 at three suburban Chicago hospitals. Patients with transvenous CIEDs undergoing procedures requiring electrosurgery were assigned to one of three groups: (1) reprogram, (2) magnet, or (3) no change. Subjects with implantable cardioverter defibrillators (ICDs) or those pacemaker dependent having surgical procedures within 6 inches of their CIED were assigned to the reprogram group, whereby ICD therapies were programmed off with asynchronous pacing if pacemaker dependent...
February 2017: Pacing and Clinical Electrophysiology: PACE
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