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https://www.readbyqxmd.com/read/27891405/complete-heart-block-in-pregnancy-a-report-of-emergency-caesarean-section-in-a-parturient-without-pacemaker
#1
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
#2
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
#3
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.
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27806730/comparative-physiological-plasticity-to-desiccation-in-distinct-populations-of-the-malarial-mosquito-anopheles-coluzzii
#4
K Hidalgo, D Siaussat, V Braman, K R Dabiré, F Simard, K Mouline, D Renault
BACKGROUND: In West Africa, populations of the malaria vector mosquito, Anopheles coluzzii, are seasonally exposed to strong desiccating conditions during the dry season. Their dynamics strictly follows the pace of the availability of suitable larval development sites (water collections). Accordingly, mosquitoes can reproduce all year long where permanent breeding is possible, or stop reproduction and virtually disappear at the onset of the dry season when surface water dries up, like observed in temporary habitats of dry savannah areas...
November 2, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27797880/ventricular-fibrillation-via-torsade-des-pointes-of-cardiac-sarcoidosis-with-preserved-left-ventricular-ejection-fraction
#5
Takayuki Sekihara, Eisaku Nakane, Kazutaka Nakasone, Moriaki Inoko
Generally, low left ventricular ejection fraction (LVEF) is a risk for ventricular arrhythmia in patients with cardiac sarcoidosis. We present a case of cardiac sarcoidosis with preserved LVEF that evoked ventricular fibrillation (VF). A 73-year-old woman with VF presented to our emergency department. She had a history of ocular sarcoidosis, with gradual thinning of the basal intraventricular septum. LVEF was 62% on the most recent echocardiography. The electrocardiogram after defibrillation showed complete atrioventricular block (CAVB) with QT segment prolongation and frequent ventricular premature beats...
October 25, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27771362/transcriptional-control-of-chondrocyte-specification-and-differentiation
#6
Chia-Feng Liu, William E Samsa, Guang Zhou, Véronique Lefebvre
A milestone in the evolutionary emergence of vertebrates was the invention of cartilage, a tissue that has key roles in modeling, protecting and complementing the bony skeleton. Cartilage is elaborated and maintained by chondrocytes. These cells derive from multipotent skeletal progenitors and they perform highly specialized functions as they proceed through sequential lineage commitment and differentiation steps. They form cartilage primordia, the primary skeleton of the embryo. They then transform these primordia either into cartilage growth plates, temporary drivers of skeletal elongation and endochondral ossification, or into permanent tissues, namely articular cartilage...
October 19, 2016: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/27726292/rapid-pacing-using-the-0-035-in-retrograde-left-ventricular-support-wire-in-208-cases-of-transcatheter-aortic-valve-implantation-and-balloon-aortic-valvuloplasty
#7
Roland Hilling-Smith, James Cockburn, Maureen Dooley, Jessica Parker, Andrea Newton, Andrew Hill, Uday Trivedi, Adam de Belder, David Hildick-Smith
: Transcatheter aortic valve implantation (TAVI) and balloon aortic valvuloplasty (BAV) are now well established percutaneous procedures. These procedures almost always require bursts of rapid ventricular pacing to temporarily reduce cardiac output to facilitate the procedure, usually done via a temporary pacing wire inserted into the right ventricle. We describe a case series of 132 cases of TAVI and 76 BAV done using ventricular pacing via the left ventricular lead by simply connecting one electrode to the patient's skin and one electrode through the left ventricular (LV) wire...
October 11, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27717952/reversible-complete-atrioventricular-block-in-patient-with-wegener-s-granulomatosis-a-report-on-fortunate-outcome-with-long-term-follow-up
#8
Roman Steckiewicz, Marek Rosiak, Przemysław Stolarz, Elżbieta B Świętoń, Marcin Grabowski, Dariusz A Kosior
Reversible complete atrioventricular block in patient with Wegener's granulomatosis - a report on a positive outcome with long term follow-up. Atrioventricular (AV) block is a rare complication of Wegener's granulomatosis (WG), thus there are no standards of management in such cases. We present a case of a patient with a dual-chamber pacemaker (DDD) implanted due to complete AV block in the course of Wegener's granulomatosis (WG). An immunosuppressive therapy resulted in the resolution of non-cardiac and AV conduction disorders...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27716700/the-formation-of-bronchocutaneous-fistulae-due-to-retained-epicardial-pacing-wires-a-literature-review
#9
Vasileios Patris, Michalis Argiriou, Agni-Leila Salem, Konstantinos Giakoumidakis, Nikolaos G Baikoussis, Christos Charitos
Temporary epicardial pacing wires during open-heart surgery are routinely used both for diagnostic and treatment purposes. In complicated cases where patients are unstable or the wires are difficult to remove, the pacing wires are cut at the skin level and allowed to retract by themselves. This procedure rarely causes complications. However, there have been cases reporting that retained pacing wires are linked to the formation of sterno-bronchial fistulae, which may present a while after the date of operation and are usually infected...
October 2016: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/27660584/postinduction-paced-pulseless-electrical-activity-in-a-patient-with-a-history-of-oropharyngeal-instrumentation-induced-reflex-circulatory-collapse
#10
Ryan J Kline, Ky Pham, Carmen L Labrie-Brown, Ken Mancuso, Paul LeLorier, James Riopelle, Alan David Kaye
BACKGROUND: Reflex hypotension and bradycardia have been reported to occur following administration of several drugs associated with administration of anesthesia and also following a variety of procedural stimuli. CASE REPORT: A 54-year-old postmenopausal female with a history of asystole associated with sedated upper gastrointestinal endoscopy and post-anesthetic-induction tracheal intubation received advanced cardiac resuscitation after insertion of a temporary transvenous pacemaker failed to prevent pulseless electrical activity...
2016: Ochsner Journal
https://www.readbyqxmd.com/read/27644061/pausing-with-the-gauze-inhibition-of-temporary-pacemakers-by-radiofrequency-scan-during-cardiac-surgery
#11
Matthew R Williams, Douglas B Atkinson, Vassilios J Bezzerides, Yuki Koichi, Kathryn Franklin, Alfonso Casta, Mark E Alexander
BACKGROUND: Radiofrequency identification (RFID) detection systems are used to detect retained surgical sponges and may cause electromagnetic interference (EMI), altering intended function of cardiac pacing systems. Three pediatric patients requiring temporary pacing for postoperative atrioventricular block experienced transient inhibition of ventricular pacing during the use of RFID detection system. Bench testing was performed to evaluate the mechanism of pacemaker inhibition. METHODS: Impedance of temporary pacing wires was obtained using a pacing system analyzer...
September 16, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27588151/arrhythmia-management-after-device-removal
#12
REVIEW
Nobuhiro Nishii
Arrhythmic management is needed after removal of cardiac implantable electronic devices (CIEDs). Patients completely dependent on CIEDs need temporary device back-up until new CIEDs are implanted. Various methods are available for device back-up, and the appropriate management varies among patients. The duration from CIED removal to implantation of a new CIED also differs among patients. Temporary pacing is needed for patients with bradycardia, a wearable cardioverter defibrillator (WCD) or catheter ablation is needed for patients with tachyarrhythmia, and sequential pacing is needed for patients dependent on cardiac resynchronization therapy...
August 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27575493/stressors-affecting-nurses-in-china
#13
Zeyu Qin, Xin Zhong, Jiahui Ma, Hongjing Lin
OBJECTIVES: To investigate the effect of stress involved in nursing on the physical and mental health of nurses and reduce their efficiency. DESIGN: A cross-sectional descriptive survey. METHOD: The present study was conducted to investigate job stress among nurses (N = 394) in three hospitals in China. Data were collected via a socio-demographic questionnaire and a nursing stress scale. RESULTS: We found that the dimension "Nursing profession and work issues" was the strongest stress factor affecting the nurses, and that the item "shift work" yielded the highest stress score...
August 2016: Contemporary Nurse
https://www.readbyqxmd.com/read/27563362/potential-role-of-caffeine-in-the-treatment-of-parkinson-s-disease
#14
Mohsin H K Roshan, Amos Tambo, Nikolai P Pace
Parkinson's disease [PD] is the second most common neurodegenerative disorder after Alzheimer's disease, affecting 1% of the population over the age of 55. The underlying neuropathology seen in PD is characterised by progressive loss of dopaminergic neurons in the substantia nigra pars compacta with the presence of Lewy bodies. The Lewy bodies are composed of aggregates of α-synuclein. The motor manifestations of PD include a resting tremor, bradykinesia, and muscle rigidity. Currently there is no cure for PD and motor symptoms are treated with a number of drugs including levodopa [L-dopa]...
2016: Open Neurology Journal
https://www.readbyqxmd.com/read/27555134/complete-heart-block-in-pregnancy-case-report-analysis-and-review-of-anesthetic-management
#15
Lalitha Sundararaman, Jennifer Hochman Cohn, J Sudharma Ranasinghe
Maternal complete heart block can pose significant challenges for the anesthesiologist in the antepartum, peripartum, and postpartum periods. Some patients may present for the first time in the puerperium with dizziness, weakness, syncope, or congestive heart failure as a result of the additional hemodynamic burden that accompanies pregnancy. Although there is an increase in permanent pacemaker placement in young symptomatic patients before pregnancy, prophylactic placement of pacemakers in asymptomatic parturients is not always indicated...
September 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27550834/compatibility-of-radiofrequency-surgical-sponge-detection-technology-with-cardiac-implantable-electronic-devices-and-temporary-pacemakers
#16
Jonathan D Salcedo, Victor G Pretorius, Jonathan C Hsu, Gautam G Lalani, Amir A Schricker, Shrinivas M Hebsur, Thomas J McGARRY, Jessica A Hunter, Kathryn E Lewis, David E Krummen, Gregory K Feld, Ulrika Birgersdotter-Green
BACKGROUND: Radiofrequency (RF) technology has improved detection of retained surgical sponges with a reported 100% sensitivity and specificity. However, the potential for interactions of the RF signals emitted by the detection system with cardiac implantable electronic devices (CIEDs) or temporary pacemakers may limit its use in those patients with these devices. This study investigated whether RF detection technology causes interference or clinically significant changes in the programmed settings of implanted pacemakers and defibrillators or temporary epicardial pacemakers...
November 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27530090/acute-sinus-node-dysfunction-after-atrial-ablation-incidence-risk-factors-and-management
#17
Ammar M Killu, Erin A Fender, Abhishek J Deshmukh, Thomas M Munger, Philip Araoz, Peter A Brady, Yong-Mei Cha, Douglas L Packer, Paul A Friedman, Samuel J Asirvatham, Peter A Noseworthy, Siva K Mulpuru
BACKGROUND: Many patients with atrial fibrillation (AF) or atrial flutter (Aflutter) have concomitant sinus node dysfunction (SND). Ablation may result in injury to the sinus node complex or its blood supply resulting in sinus arrest and need for temporary pacing. We sought to characterize patients who develop acute SND (ASND) during/immediately after AF/Aflutter ablation. METHODS: We performed a retrospective analysis of AF/Aflutter ablation patients between January 1, 2010 and February 28, 2015 to characterize those who required temporary pacemaker (TPM) implantation due to ASND (sinus arrest, sinus bradycardia <40 beats/min, or junctional rhythm with hemodynamic compromise) following atrial ablation...
October 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27510946/rapid-pacing-using-the-left-ventricular-guidewire-reviving-an-old-technique-to-simplify-bav-and-tavi-procedures
#18
Benjamin Faurie, Mohamed Abdellaoui, Fabrice Wautot, Patrick Staat, Didier Champagnac, Jérome Wintzer-Wehekind, Gérald Vanzetto, Bernard Bertrand, Jacques Monségu
OBJECTIVES: We sought to demonstrate the safety and efficacy of rapid left ventricular (LV) pacing through the guidewire during balloon aortic valvuloplasty (BAV) and Transaortic valve implantation (TAVI). BACKGROUND: Right ventricular temporary pacing during TAVI and BAV is time-consuming and associated with vascular and pericardial complications. METHODS: Rapid left ventricular pacing was provided via the back-up 0.035″ guidewire. The cathode of an external pacemaker was placed on the tip of the 0...
August 11, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27480609/effect-of-left-ventricular-pacing-mode-and-site-on-hemodynamic-torsional-and-strain-indices
#19
Savvas Toumanidis, Anna Kaladaridou, Dimitrios Bramos, Elias Skaltsiotes, John Agrios, George Georgiopoulos, Anna Antoniou, Konstantinos Pamboucas, Elektra Papadopoulou, Spyridon Moulopoulos
INTRODUCTION: Several reports have indicated that left ventricular (LV) lead placement at an optimal pacing site is an important determinant of short- and long-term outcome. This study investigated the effect of pacing mode (atrioventricular [AV] or ventricular) and site (LV apical or lateral) outside the ischemic region on the LV hemodynamic, torsional and strain indices in the ischemic myocardium. METHODS: Experiments were conducted in anesthetized open-chest pigs (n = 15) 30 min after LAD ligation to investigate the hemodynamic effects of temporary epicardial AV and ventricular LV pacing at the LV apical (outside the ischemic region) or lateral wall...
May 2016: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/27476562/-migration-of-a-temporary-epicardial-pacing-lead-into-the-vascular-graft
#20
Yuichi Matsuzaki, Hideyuki Tomioka, Masaki Saso, Kei Kobayashi, Takashi Azuma, Satoshi Saito, Shigeyuki Aomi, Kenji Yamazaki
A 48-year-old man was refered to our hospital for the treatment of bicusp aortic valve and severe aortic regurgitation. He underwent Bentall procedure (SJM 25mm+HemashieldØ 28 mm composite graft). Temporary epicardial pacing lead( TPL) was placed on the right ventricle at the opetation, and was cut on his skin surface prior to discharge because of difficulty in traction removal. After 15 years from operation, follow up computered tomography and echocardiography showed migration of 2 retaining TPLs extending from vascular graft of ascending aorta to the right innominate artery...
August 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
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