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https://www.readbyqxmd.com/read/27932427/retrieval-of-the-leadless-cardiac-pacemaker-a-multicenter-experience
#1
Vivek Y Reddy, Marc A Miller, Reinoud E Knops, Petr Neuzil, Pascal Defaye, Werner Jung, Rahul Doshi, Mark Castellani, Adam Strickberger, R Hardwin Mead, Harish Doppalapudi, Dhanunjaya Lakkireddy, Matthew Bennett, Johannes Sperzel
BACKGROUND: Leadless cardiac pacemakers have emerged as a safe and effective alternative to conventional transvenous single-chamber ventricular pacemakers. Herein, we report a multicenter experience on the feasibility and safety of acute retrieval (<6 weeks) and chronic retrieval (>6 weeks) of the leadless cardiac pacemaker in humans. METHODS AND RESULTS: This study included patients enrolled in 3 multicenter trials, who received a leadless cardiac pacemaker implant and who subsequently underwent a device removal attempt...
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27931654/the-response-of-the-microcirculation-to-mechanical-support-of-the-heart-in-critical-illness
#2
REVIEW
Sakir Akin, Atila Kara, Corstiaan A den Uil, Can Ince
Critical illness associated with cardiac pump failure results in reduced tissue perfusion in all organs and occurs in various conditions such as sepsis, cardiogenic shock, and heart failure. Mechanical circulatory support (MCS) devices can be used to maintain organ perfusion in patients with cardiogenic shock and decompensated chronic heart failure. However, correction of global hemodynamic parameters by MCS does not always cause a parallel improvement in microcirculatory perfusion and oxygenation of the organ systems, a condition referred to as a loss of hemodynamic coherence between macro- and microcirculation (MC)...
December 2016: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/27931593/techniques-and-outcomes-of%C3%A2-percutaneous-aortic-paravalvular%C3%A2-leak%C3%A2-closure
#3
Mohamad Alkhouli, Mohammad Sarraf, Elad Maor, Saurabh Sanon, Allison Cabalka, Mackram F Eleid, Donald J Hagler, Peter Pollak, Guy Reeder, Charanjit S Rihal
OBJECTIVES: The aim of this study is to provide a summary of the currently applied aortic paravalvular leak (PVL) closure techniques and describe the procedural and long-term outcomes in a large consecutive cohort of patients. BACKGROUND: Percutaneous repair has emerged as an effective therapy for patients with PVL. To date, clinical outcome data on percutaneous closure of aortic PVL are limited. METHODS: All patients who underwent catheter-based treatment of aortic PVL between 2006 and 2015 were identified...
December 12, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27931053/hemodynamic-responses-to-blood-flow-restriction-and-resistance-exercise-to-muscular-failure
#4
C A Libardi, A M Catai, M Miquelini, A Borghi-Silva, V Minatel, I F Alvarez, J C Milan-Mattos, H Roschel, V Tricoli, C Ugrinowitsch
The aim of the present study was to compare hemodynamic responses between blood flow-restricted resistance exercise (BFR-RE), high-intensity resistance exercise (HI-RE) and low-intensity resistance exercise (LI-RE) performed to muscular failure. 12 men (age: 20±3 years; body mass: 73.5±9 kg; height: 174±6 cm) performed 4 sets of leg press exercises using BFR-RE (30% of 1-RM), HI-RE (80% of 1-RM) and LI-RE (30% of 1-RM) protocols. Systolic (SBP) and diastolic blood pressure (DBP), heart rate (HR), stroke volume (SV), cardiac output (CO) and total peripheral vascular resistance (TPR) were measured on a beat-to-beat continuous basis by a noninvasive photoplethysmographic arterial pressure device...
December 8, 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27930686/comparison-of-ventricular-inducibility-with-late-gadolinium-enhancement-and-myocardial-inflammation-in-endomyocardial-biopsy-in-patients-with-dilated-cardiomyopathy
#5
Karin A L Mueller, Christian Heck, David Heinzmann, Johannes Schwille, Karin Klingel, Reinhard Kandolf, Ulrich Kramer, Michael Gramlich, Tobias Geisler, Meinrad P Gawaz, Juergen Schreieck, Peter Seizer
BACKGROUND: Risk stratification of patients with non-ischemic dilated cardiomyopathy remains a matter of debate in the era of device implantation. OBJECTIVE: We investigated associations between histopathological findings, contrast-enhanced cardiac MRI and the inducibility of ventricular tachycardia (VT) or fibrillation (VF) in programmed ventricular stimulation. METHODS: 56 patients with impaired left ventricular ejection fraction (LVEF≤50%, mean 36...
2016: PloS One
https://www.readbyqxmd.com/read/27930286/left-ventricular-geometry-and-risk-of-sudden-cardiac-arrest-in-patients-with-severely-reduced-ejection-fraction
#6
Derek Phan, Aapo L Aro, Kyndaron Reinier, Carmen Teodorescu, Audrey Uy-Evanado, Karen Gunson, Jonathan Jui, Sumeet S Chugh
BACKGROUND: Recent reports indicate that specific left ventricular (LV) geometric patterns predict recurrent ventricular arrhythmias in patients with implantable cardioverter-defibrillators and reduced left ventricular ejection fraction (LVEF). However, this relationship has not been evaluated among patients at risk of sudden cardiac arrest (SCA) in the general population. METHODS AND RESULTS: Adult SCA cases from the Oregon Sudden Unexpected Death Study were compared with geographic controls with no prior history of SCA...
August 18, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27928226/achieving-timely-percutaneous-reperfusion-for-rural-st-elevation-myocardial-infarction-patients-by-direct-transport-to-an-urban-pci-hospital
#7
Charles-Lwanga K Bennin, Saif Ibrahim, Farah Al-Saffar, Lyndon C Box, Joel A Strom
BACKGROUNDS: ST-elevation myocardial infarction (STEMI) guidelines recommend reperfusion by primary percutaneous coronary intervention (PCI) ≤ 90 min from time of first medical contact (FMC). This strategy is challenging in rural areas lacking a nearby PCI-capable hospital. Recommended reperfusion times can be achieved for STEMI patients presenting in rural areas without a nearby PCI-capable hospital by ground transportation to a central PCI-capable hospital by use of protocol-driven emergency medical service (EMS) STEMI field triage protocol...
October 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/27924214/seasonal-variation-of-daily-physical-activity-in-individuals-with-heart-failure
#8
Michael J Shoemaker, Sarah E Roper, Tonya N Calkins
BACKGROUND: Previous studies indicate that seasonal variation affects daily physical activity (PA), but none have investigated this relationship in individuals with heart failure (HF) who also have implanted cardioverter defibrillators and cardiac resynchronization therapy (ICD/CRT) devices. The purpose of the present study was to determine if seasonal variation in temperature affects daily PA in patients with HF and ICD/CRTs. PATIENTS AND METHODS: Secondary analysis of data from 16 subjects with HF and Medtronic® ICD/CRT devices enrolled in a randomized trial investigating interventions to improve daily PA...
January 2016: Heart International
https://www.readbyqxmd.com/read/27922771/giant-cell-myocarditis-a-brief-review
#9
Jin Xu, Erin G Brooks
Giant cell myocarditis (GCM) is a rapidly progressive and frequently fatal disease that mainly affects young to middle-aged previously healthy individuals. Early diagnosis is critical, as recent studies have shown that rapidly instituted cyclosporine-based immunosuppression can reduce inflammation and improve transplant-free survival. Before the 1980s, GCM was mainly a diagnosis made at autopsy. Owing to advancements in diagnostic and therapeutic options, it is now increasingly diagnosed on the basis of endomyocardial biopsies, explanted hearts, or apical wedge sections removed at the time of ventricular assist device placement...
December 2016: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27922467/lead-extraction-considerations-for-the-referring-cardiologist
#10
Ayman A Hussein, Bruce L Wilkoff
The population of patients with cardiac implantable electronic devices (CIEDs) continues to grow due to increasing indications in an aging population and breakthroughs in both the medical and the surgical care of patients with heart disease. As a result, there has been a growing need for device and lead extractions due to the growing population of patients with CIEDs and the subsequent need for system upgrades or revisions because of complications, infections, and lead advisory alerts.
January 2017: Cardiology in Review
https://www.readbyqxmd.com/read/27922466/smartphone-based-electrocardiographic-and-cardiac-implantable-electronic-device-monitoring
#11
Suneet Mittal
The field of arrhythmia monitoring is changing rapidly. The rapid advent of technology in combination with marked improvements in cellular communication and an increased desire by patients to be actively engaged in their care has ushered in a new era of clinical care. Today, physicians need to think about their patients outside the traditional in-office setting. Two technologies that embody this changing landscape are smartphone-based electrocardiographic (ECG) monitors and remote monitoring of cardiac implantable electronic devices (CIEDs)...
January 2017: Cardiology in Review
https://www.readbyqxmd.com/read/27920834/trends-and-determinant-factors-in-the-use-of-cardiac-resynchronization-therapy-devices-in-japan-analysis-of-the-japan-cardiac-device-treatment-registry-database
#12
Hisashi Yokoshiki, Akihiko Shimizu, Takeshi Mitsuhashi, Hiroshi Furushima, Yukio Sekiguchi, Tetsuyuki Manaka, Nobuhiro Nishii, Takeshi Ueyama, Norishige Morita, Takashi Nitta, Ken Okumura
BACKGROUND: The choice of cardiac resynchronization therapy device, with (CRT-D) or without (CRT-P) a defibrillator, in patients with heart failure largely depends on the physician׳s discretion, because it has not been established which subjects benefit most from a defibrillator. METHODS: We examined the annual trend of CRT device implantations between 2006 and 2014, and evaluated the factors related to the device selection (CRT-D or CRT-P) for primary prevention of sudden cardiac death in patients with heart failure by analyzing the Japan Cardiac Device Treatment Registry (JCDTR) database from January 2011 and August 2015 (CRT-D, n=2714; CRT-P, n=555)...
December 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27920833/the-association-between-defibrillation-shock-energy-and-acute-cardiac-damage-in-patients-with-implantable-cardioverter-defibrillators
#13
Daisuke Ishigaki, Daisuke Kutsuzawa, Takanori Arimoto, Tadateru Iwayama, Naoaki Hashimoto, Yu Kumagai, Satoshi Nishiyama, Hiroki Takahashi, Tetsuro Shishido, Takuya Miyamoto, Joji Nitobe, Akio Fukui, Tetsu Watanabe, Isao Kubota
BACKGROUND: The aim of this study was to establish a minimally invasive defibrillation testing (DT) protocol for patients with implantable cardioverter defibrillators (ICDs). METHODS: Two different energy DTs were performed, immediately after (15 J-DT) and 7 days after (≤10 J-DT) device implantation, in 20 consecutive ICD implantation patients. Cardiac-troponin T (c-TNT) and heart-type fatty acid binding protein (H-FABP) levels were measured before implantation, 2 h after implantation, and 1 day after each DT...
December 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27919716/postoperative-cardiac-ischemia-detection-by-continuous-12-lead-electrocardiographic-monitoring-in-vascular-surgery-patients-a-prospective-observational-study
#14
Aino Ollila, Juha Virolainen, Joonas Vanhatalo, Pirkka Vikatmaa, Ilkka Tikkanen, Maarit Venermo, Markku Salmenperä, Ville Pettilä, Leena Vikatmaa
OBJECTIVES: Elderly patients undergoing vascular surgery are at major risk for perioperative cardiac complications. The authors investigated continuous electrocardiographic Holter monitoring in a postoperative setting to determine the degree of postoperative ischemic load and its possible associations with perioperative myocardial infarction. DESIGN: A prospective, observational study. SETTING: One university hospital. PARTICIPANTS: The study comprised 51 patients aged 65 years or older undergoing peripheral arterial surgery...
September 28, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27918254/clinical-implications-of-mycobacterium-chimaera-detection-in-thermoregulatory-devices-used-for-extracorporeal-membrane-oxygenation-ecmo-germany-2015-to-2016
#15
Franziska C Trudzinski, Uwe Schlotthauer, Annegret Kamp, Kai Hennemann, Ralf M Muellenbach, Udo Reischl, Barbara Gärtner, Heinrike Wilkens, Robert Bals, Mathias Herrmann, Philipp M Lepper, Sören L Becker
Mycobacterium chimaera, a non-tuberculous mycobacterium, was recently identified as causative agent of deep-seated infections in patients who had previously undergone open-chest cardiac surgery. Outbreak investigations suggested an aerosol-borne pathogen transmission originating from water contained in heater-cooler units (HCUs) used during cardiac surgery. Similar thermoregulatory devices are used for extracorporeal membrane oxygenation (ECMO) and M. chimaera might also be detectable in ECMO treatment settings...
November 17, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/27916778/predictive-value-of-qrs-duration-at-admission-for-in-hospital-clinical-outcome-of-takotsubo-cardiomyopathy
#16
Tetsuo Yamaguchi, Tsutomu Yoshikawa, Toshiaki Isogai, Takamichi Miyamoto, Yuichiro Maekawa, Tetsuro Ueda, Konomi Sakata, Tsutomu Murakami, Takeshi Yamamoto, Ken Nagao, Morimasa Takayama
BACKGROUND: Prolonged QRS duration (pQRSd) on electrocardiogram (ECG) is a strong predictor of poor outcome in heart failure, myocardial infarction, and myocarditis, but it is unclear whether pQRSd also predicts poor outcomes of takotsubo cardiomyopathy (TC).Methods and Results:Between 1 January 2010 and 31 December 2012, we retrospectively enrolled 299 patients with TC (mean age, 73.5±11.7 years; 21.4% male) from the Tokyo CCU Network database, which consists of 71 cardiovascular centers in the metropolitan area...
December 2, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27916592/new-developments-in-cardiac-regeneration
#17
REVIEW
Thi Yen Loan Le, Sujitha Thavapalachandran, Eddy Kizana, James Jh Chong
Numerous pharmacological and device therapies have improved adverse cardiac remodelling and mortality in heart failure. However, none are able to regenerate damaged cardiac tissue. Stem cell based therapies using multipotent (adult) stem cells and pluripotent stem cells are new approaches that could potentially achieve the elusive goal of true cardiac regeneration. Over the past two decades, various stem cell based approaches have been shown to improve left ventricular function in pre-clinical animal models...
November 19, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27916039/-the-development-of-ex-vivo-lung-perfusion-in-lung-transplantation
#18
X F Pan, R Wang, S J Fu, Y H Yang, J Yang, H Zhao
The shortage of donor lung remains one of the major problem for lung transplantation. With the development of modern lung preservation and repair technique, increasing marginal lung donors have been re-assessed and finally utilized for transplantation. The ex vivo lung perfusion technique (EVLP) was designed and has been developed for evaluation and repair of the lung. Nowadays, the indication of EVLP and the standard of qualified donor lung have reached a consensus according to the foreign publications. The EVLP system could be classified into three categories: the Toronto technique, the Lund technique and Hannover-Madrid technique...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27915267/occurrence-of-simultaneous-cathodal-anodal-capture-with-left-ventricular-quadripolar-leads-for-cardiac-resynchronization-therapy-an-electrocardiogram-evaluation
#19
Eraldo Occhetta, Gabriele Dell'Era, Ailia Giubertoni, Andrea Magnani, Francesco Rametta, Alessandro Blandino, Vincenzo Magnano, Maurizio Malacrida, Paolo Marino
AIMS: The occurrence of left ventricular (LV) anodal activation during pacing with modern multipolar cardiac resynchronization therapy (CRT) systems has never been reported. The aim of our study was to demonstrate, by means of electrocardiogram (ECG) analysis, the occurrence of simultaneous cathodal-anodal LV capture with quadripolar LV leads. METHODS AND RESULTS: We studied 10 first-time recipients of a CRT device equipped with a quadripolar LV lead. During follow-up, standard supine 12-lead ECGs were obtained in available cathode-to-anode LV pacing configurations with a pulse amplitude equal to twice the pacing threshold...
December 2, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27915265/the-ethics-of-unilateral-implantable-cardioverter-defibrillators-and-cardiac-resynchronization-therapy-with-defibrillator-deactivation-patient-perspectives
#20
Margaret Daeschler, Ralph J Verdino, James N Kirkpatrick
AIMS: Decisions about deactivation of implantable cardioverter defibrillators (ICDs) are complicated. Unilateral do-not-resuscitate (DNR) orders (against patient/family wishes) have been ethically justified in cases of medical futility. Unilateral deactivation of ICDs may be seen as a logical extension of a unilateral DNR order. However, the ethical implications of unilateral ICD deactivation have not been explored. METHODS AND RESULTS: Sixty patients who had an ICD or cardiac resynchronization therapy with defibrillator (CRT-D) were interviewed at a quaternary medical centre outpatient electrophysiology practice...
December 2, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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