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https://www.readbyqxmd.com/read/29335751/transcranial-direct-current-stimulation-enhances-foot-sole-somatosensation-when-standing-in-older-adults
#1
Junhong Zhou, On-Yee Lo, Lewis A Lipsitz, Jue Zhang, Jing Fang, Brad Manor
Foot-sole somatosensation is critical for safe mobility in older adults. Somatosensation arises when afferent input activates a neural network that includes the primary somatosensory cortex. Transcranial direct current stimulation (tDCS), as a strategy to increase somatosensory cortical excitability, may, therefore, enhance foot-sole somatosensation. We hypothesized that a single session of tDCS would improve foot-sole somatosensation, and thus mobility, in older adults. Twenty healthy older adults completed this randomized, double-blinded, cross-over study consisting of two visits separated by one week...
January 15, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29327439/the-hidden-concealed-left-sided-accessory-pathway-an-uncommon-cause-of-svt-in-young-people
#2
Robert H Pass, Leonardo Liberman, Eric S Silver, Christopher M Janson, Andrew D Blaufox, Lynn Nappo, Scott R Ceresnak
BACKGROUND: Concealed left sided accessory pathways (CLAP) are a cause of SVT in the young. Most are mapped with RV apical/outflow pacing. Rarely, alternative means of mapping are required. We review our experience from 3 pediatric EP centers with a rare form of "hidden" CLAP. METHODS: All patients < 21 years undergoing EP study from 2008-2014 with a "hidden" CLAP (defined as an accessory pathway (AP) for which RV pacing at CL's stable for mapping did not demonstrate eccentric retrograde conduction) were included...
January 12, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29306522/visceral-thromboses-in-pancreas-adenocarcinoma-systematic-review
#3
REVIEW
Angel Mier Hicks, Antonio DeRosa, Michael Raj, Richard Do, Kenneth H Yu, Maeve A Lowery, Anna Varghese, Eileen M O'Reilly
Within gastrointestinal malignancies, primary hepatocellular carcinoma and pancreatic ductal adenocarcinoma (PDAC) are frequently associated with visceral thromboses (VT). Thrombus formation in the portal (PVT), mesenteric (MVT), or splenic vein (SVT) system leads to portal hypertension and intestinal ischemia. VT in PDAC may convey a risk of increased distal thrombosis and poses therapeutic uncertainty regarding the role of anticoagulation. An increasing number of reports describe VT associated with PDAC. It is possible that early diagnosis of these events may help reduce morbidity and speculatively improve oncologic outcomes...
December 12, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/29304037/influence-of-advancing-age-on-clinical-presentation-treatment-efficacy-and-safety-and-long-term-outcome-of-inducible-paroxysmal-supraventricular-tachycardia-without-pre-excitation-syndromes-a-cohort-study-of-1960-patients-included-over-25-years
#4
Béatrice Brembilla-Perrot, Jean Marc Sellal, Arnaud Olivier, Thibaut Villemin, Daniel Beurrier, Julie Vincent, Vladimir Manenti, Christian de Chillou, Erwan Bozec, Nicolas Girerd
AIM: To investigate the influence of increasing age on clinical presentation, treatment and long-term outcome in patients with inducible paroxysmal supraventricular tachycardia (SVT) without pre-excitation syndromes. METHODS: Clinical and electrophysiological study (EPS) data, as well as long-term clinical outcome (mean follow-up 2.4±4.0 years) were collected in patients referred for regular tachycardia with inducible SVT during EPS without pre-excitation. RESULTS: Among 1960 referred patients, 301 patients (15...
2018: PloS One
https://www.readbyqxmd.com/read/29276907/-regulatory-adaptive-status-in-determining-the-effectiveness-of-bisoprololum-and-sotalolum-in-patients-with-hypertensive-disease-and-paroxysmal-supraventricular-tachycardia
#5
V G Tregubov, V M Pokrovsky, N M Nazhalkina
AIM: To determine efficacy of bisoprolol and sotalol treatments in patients with paroxysmal supraventricular tachycardia (SVT) and essential hypertension (EH) considering effects of these treatments on the regulatory adaptive status (RAS). MATERIALS AND METHODS: The study included 49 patients with paroxysmal SVT associated with stage II-III EH randomized to two groups of either bisoprolol (6.9±2.2 mg/day, n=25) or sotalol (162.5±46.2 mg/day, n=24) treatment. Lisinopril (14...
2017: Kardiologiia
https://www.readbyqxmd.com/read/29250234/postpacing-interval-during-right-ventricular-overdrive-pacing-to-discriminate-supraventricular-from-ventricular-tachycardia
#6
Kivanc Yalin, Ebru Golcuk, Ekrem Bilal Karaayvaz, Tolga Aksu, Muhammet Arslane, Selma Kenar Tiryakioglu, Ahmet Kaya Bilge, Kamil Adalet
Introduction: Failure to differentiate supraventricular from ventricular arrhythmias is the most frequent cause of inappropriate implantable cardioverter-defibrillator (ICD) therapies. We hypothesized that the postpacing interval (PPI) after overdrive right ventricular pacing may differentiate ventricular (VT) from supraventricular tachycardia (SVT) such as sinus tachycardia, atrial flutter and atrial tachycardia. This hypothesis is based on the entrainment maneuver. Reentrant tachycardia circuit for VTs would haveshorter distance to RV apex than SVTs have, and the conduction time between a ventricular pacing site and the tachycardia origin is expected to be shorter in VTs than in SVTs...
August 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29246830/relative-timing-of-near-field-and-far-field-electrograms-can-determine-tachyarrhythmia-site-of-origin
#7
Jane Caldwell, Lorne Gula, Fariha Sadiq Ali, Rodrigo I Miranda, Hoshiar Abdollah, Adrian Baranchuk, Kevin Michael, Christopher Simpson, Damian P Redfearn
BACKGROUND: Despite improving algorithms, inappropriate shocks for supraventricular arrhythmias (SVT) still occur in a significant number of patients with implantable cardioverter defibrillators (ICD). This makes the discovery of novel discriminators that use existing ICD hardware, an attractive proposition. OBJECTIVE: We hypothesised that the delay of activation onset from the device detected, far field electrogram(EGM) to the near field, bipole EGM would allow differentiation of ventricular tachycardias (VT) from SVTs...
December 12, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29239759/alternative-treatment-options-for-atrioventricular-nodal-reentry-tachycardia-an-emergency-medicine-review
#8
Sarah Brubaker, Brit Long, Alex Koyfman
BACKGROUND: Atrioventricular-nodal-reentry tachycardia (AVNRT) is a form of supraventricular tachycardia (SVT) that is relatively common in the emergency department (ED). It is rarely indicative of underlying electrical or structural pathology. OBJECTIVE: This review evaluates the literature and controversies concerning treatment of AVNRT in the ED. DISCUSSION: For treatment of narrow-complex tachycardia, Advanced Cardiovascular Life Support guidelines recommend the use of vagal maneuvers, followed by adenosine...
November 24, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29232101/a-driver-switchover-mechanism-of-influenza-virus-transport-from-microfilaments-to-microtubules
#9
Li-Juan Zhang, Li Xia, Shu-Lin Liu, En-Ze Sun, Qiu-Mei Wu, Li Wen, Zhi-Ling Zhang, Dai-Wen Pang
When infecting host cells, influenza virus must move on microfilaments (MFs) at the cell periphery and then move along microtubules (MTs) through the cytosol to reach the perinuclear region for genome release. But how viruses switch from the actin roadway to the microtubule highway remains obscure. To settle this issue, we systematically dissected the role of related motor proteins in the transport of influenza virus between cytoskeletal filaments in situ and in real-time using quantum dot (QD)-based single-virus tracking (SVT) and multicolor imaging...
December 12, 2017: ACS Nano
https://www.readbyqxmd.com/read/29222860/adenosine-sensitive-wolff-parkinson-white-longer-time-across-the-atrioventricular-groove
#10
Cheyenne Beach, Christopher W Follansbee, Lee Beerman, Sharon Mazzocco, Li Wang, Gaurav Arora
BACKGROUND: Successful ablation sites in Wolff-Parkinson-White syndrome (WPW) are characterized by short atrioventricular (AV) intervals. Approximately 15% of patients with WPW have adenosine-sensitive accessory pathways (APs). We sought to determine if local AV intervals of adenosine-sensitive APs are different from those of adenosine-insensitive APs in patients with WPW. METHODS: Patients ≤ 21 years with WPW and adenosine-sensitive APs who underwent successful ablation over a 9-year period were included...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29222259/controversies-in-venous-thromboembolism-to-treat-or-not-to-treat-superficial-vein-thrombosis
#11
REVIEW
Jan Beyer-Westendorf
The management of superficial vein thrombosis (SVT) is poorly defined and remains controversial overall. SVT has long been considered a benign, self-limited disease, but recent studies show that SVT carries a nonnegligible risk for recurrence, deep vein thrombosis, or pulmonary embolism. Current guidelines recommend the use of low-molecular-weight heparin or fondaparinux, but results of several surveys indicate that the majority of patients with SVT receive nonanticoagulant therapy only, which includes compression stockings or bandages, nonsteroidal anti-inflammatory drugs, topical application of heparin gel, or surgical interventions...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29202678/approach-to-thrombosis-at-unusual-sites-splanchnic-and-cerebral-vein-thrombosis
#12
REVIEW
Nicoletta Riva, Walter Ageno
Splanchnic vein thrombosis (SVT) and cerebral vein thrombosis (CVT) are two manifestations of unusual site venous thromboembolism (VTE). SVT includes thrombosis in the portal, mesenteric or splenic veins, and the Budd-Chiari syndrome. CVT encompasses thrombosis of the dural venous sinuses and thrombosis of the cerebral veins. Unusual site VTE often represents a diagnostic and therapeutic challenge because of the heterogeneity in clinical presentation, the limited evidence available in the literature on the acute and long-term prognosis of these diseases, and the lack of large randomized controlled trials evaluating different treatment options...
December 2017: Vascular Medicine
https://www.readbyqxmd.com/read/29201963/valsalva-maneuver-using-a-handmade-device-in-supraventricular-tachycardia-reversion-a-quasi-experimental-study
#13
Maryam Motamedi, Mohammad Ali Akbarzadeh, Saeed Safari, Mehrnoosh Shahhoseini
Introduction: The use of vagal nerve stimulation is identified as a proper treatment option in patients with stable supraventricular tachycardia (SVT). This study aimed to assess the success of Valsalva maneuver via a handmade device in reversion of SVT. Methods: In this quasi experimental study, using a handmade device, vagus nerve stimulation was performed for SVT patients presenting to emergency department or cardiac intervention unit and the success rate and its related factors were assessed...
2017: Emergency (Tehran, Iran)
https://www.readbyqxmd.com/read/29198533/usefulness-of-routine-transtelephonic-monitoring-for-supraventricular-tachycardia-in-infants
#14
Jonathan Yaari, Dorota Gruber, Andrew D Blaufox
OBJECTIVE: We hypothesize that routine daily transtelephonic monitoring (TTM) transmissions can accurately detect supraventricular tachycardia (SVT) in asymptomatic infants and/or assuage parental concerns rather than being used solely to diagnose arrhythmias. STUDY DESIGN: Single center, retrospective chart review of 60 patients with fetal or infant SVT prescribed TTM for at least 30 days, January 2010-September 2016. Patients were excluded if initial SVT was not documented, was perioperative, was atrial flutter/fibrillation, or chaotic atrial tachycardia...
November 30, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29170144/coexistence-of-tachyarrhythmias-in-patients-with-tetralogy-of-fallot
#15
Elisabeth M J P Mouws, Jolien W Roos-Hesselink, Ad J J C Bogers, Natasja M S de Groot
BACKGROUND: The expanding population of adult patients with Tetralogy of Fallot(ToF) requires knowledge of their long-term sequelae. OBJECTIVE: To examine coexistence and order of appearance of AF, other SVT, VT and VF and their impact on survival during long-term follow-up METHODS: Adult, corrected ToF patients(N=225,128male,41±12(19-79)years)were included. Medical correspondence, electrocardiograms(ECG) and Holter registrations were reviewed for documented AF, other SVT, VT and VF...
November 20, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29169907/upside-down-position-for-the-out-of-hospital-management-of-children-with-supraventricular-tachycardia
#16
Gabriele Bronzetti, Maurizio Brighenti, Elisabetta Mariucci, Marianna Fabi, Marcello Lanari, Marco Bonvicini, Gaetano Gargiulo, Andrea Pession
BACKGROUND: The upside-down position is a little known modified Valsalva manoeuvre (VM). The aim of this study was to investigate the safety and the efficacy of the upside-down position for the treatment of paroxysmal SVT in children. METHODS: Twenty-four paediatric patients followed for SVT were enrolled. The patients were assigned (1:1) to a standard VM or to an upside-down position at the first episode of SVT at home. If no cardioversion occurred, a second attempt was undertaken with the other VM...
February 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29119778/correlation-between-concentration-of-air-pollutants-and-occurrence-of-cardiac-arrhythmias-in-a-region-with-humid-continental-climate
#17
Marijana Knezović, Sanja Pintarić, Marko Mornar Jelavić, Višnja Nesek, Goran Krstačić, Mislav Vrsalović, Aljoša Šikić, Ivan Zeljković, Hrvoje Pintarić
In this study, we investigated the correlation of air temperature, pressure and concentration of air pollutants with the rate of admissions for cardiac arrhythmias at two clinical centers in the area with a humid continental climate. This retrospective study included 3749 patients with arrhythmias admitted to emergency department (ED). They were classified into four groups: supraventricular tachycardia (SVT), ventricular tachycardia (VT), atrial fibrillation/undulation (Afib/Aund), and palpitations (with no ECG changes, or with sinus tachycardia and extrasystoles)...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29098349/vortex-flow-in-the-right-atrium-surrogates-supraventricular-arrhythmia-and-thrombus-after-atriopulmonary-connection-type-fontan-operation-vortex-flow-analysis-using-conventional-cine-magnetic-resonance-imaging
#18
Yumi Shiina, Kei Inai, Tatsunori Takahashi, Yamato Shimomiya, Umiko Ishizaki, Kenji Fukushima, Michinobu Nagao
We developed a novel imaging technique, designated as vortex flow (VF) mapping, which presents a vortex flow visually on conventional two-dimensional (2D) cine MRI. Using it, we assessed circumferential VF patterns and influences on RA thrombus and supraventricular tachycardia (SVT) in AP connection-type Fontan circulation. Retrospectively, we enrolled 27 consecutive patients (25.1 ± 9.2 years) and 7 age-matched controls who underwent cardiac MRI. Conventional cine images acquired using a 1.5-Tesla scanner were scanned for axial and coronal cross section of the RA...
November 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29097174/medical-management-of-acute-superficial-vein-thrombosis-of-the-saphenous-vein
#19
REVIEW
Sherry D Scovell, Emel A Ergul, Mark F Conrad
OBJECTIVE: Acute superficial vein thrombosis (SVT) of the axial veins, such as the great saphenous vein (GSV), is a common clinical condition that carries with it significant risk of propagation of thrombus, recurrence, and, most concerning, subsequent venous thromboembolism (VTE). Conservative therapy with nonsteroidal anti-inflammatory medication and heat does not prevent extension of thrombus or protect against recurrent or future VTE in patients with extensive SVT (thrombotic segment of at least 5 cm in length)...
October 30, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29076671/cross-over-a-reliable-maneuver-in-the-confirmation-of-atrioventricular-nodal-reentrant-tachycardia-ablation
#20
Bakhtawar Shah, Shahab Saidullah, Zahid Aslam Awan
BACKGROUND: Atrioventricular nodal re-entrant tachycardia (AVNRT) is still the most common presentation to our electrophysiology laboratory for ablation. The aim of this study is to document the confirmative value of cross over manoeuvre in successful AVNRT ablation. METHODS: This study was conducted in Hayat Abad Medical complex Peshawar June 2006 to October 2015. In all patient with AVNRT, Dual-nodal pathway physiology confirmed by programmed atrial pacing of eight Tran with an extra beat by 10 millisecond (ms) decrement and at least Atrial HIS (A-H) interval prolongation of 50 ms...
July 2017: Journal of Ayub Medical College, Abbottabad: JAMC
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