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https://www.readbyqxmd.com/read/27899069/gastric-dilatation-and-intestinal-obstruction-mimicking-acute-coronary-syndrome-with-dynamic-electrocardiographic-changes
#1
H M M T B Herath, Anne Thushara Matthias, B S D P Keragala, W A E Udeshika, Aruna Kulatunga
BACKGROUND: ST elevation myocardial infarction is a medical emergency and the electrocardiogram is a part of the mainstay in the initial diagnosis. A variety of non-cardiac conditions have been known to mimic the electrocardiographic changes seen in acute coronary syndrome. We present a patient presenting with acute partial intestinal obstruction causing gastric distension and intestinal dilatation who also had dynamic electrocardiographic changes, mimicking anterior ST elevation myocardial infarction...
November 29, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27844192/-right-bundle-branch-block-during-right-ventricular-pacing
#2
Harilaos Bogossian, Fuad Hasan, Gerrit Frommeyer, Bernd Lemke, Markus Zarse
INTRODUCTION: We describe the case of a 78-year-old patient who presented for ablation of a wide complex tachycardia with right bundle branch block (RBBB) morphology. A pacemaker spike at the QRS onset indicated supraventricular tachycardia with AV synchronous ventricular pacemaker activation. METHODS: Correct positioning of the ventricular lead in the right ventricular apex was confirmed by fluoroscopy and echocardiography, excluding malpositioning of the right ventricular lead...
November 14, 2016: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/27789941/nanopatterned-acellular-valve-conduits-drive-the-commitment-of-blood-derived-multipotent-cells
#3
Rosa Di Liddo, Paola Aguiari, Silvia Barbon, Thomas Bertalot, Amit Mandoli, Alessia Tasso, Sandra Schrenk, Laura Iop, Alessandro Gandaglia, Pier Paolo Parnigotto, Maria Teresa Conconi, Gino Gerosa
Considerable progress has been made in recent years toward elucidating the correlation among nanoscale topography, mechanical properties, and biological behavior of cardiac valve substitutes. Porcine TriCol scaffolds are promising valve tissue engineering matrices with demonstrated self-repopulation potentiality. In order to define an in vitro model for investigating the influence of extracellular matrix signaling on the growth pattern of colonizing blood-derived cells, we cultured circulating multipotent cells (CMC) on acellular aortic (AVL) and pulmonary (PVL) valve conduits prepared with TriCol method and under no-flow condition...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27780597/myc-immunohistochemistry-in-angiosarcoma-and-atypical-vascular-lesions-practical-considerations-based-on-a-single-institutional-experience
#4
Aaron M Udager, Martin K Ishikawa, David R Lucas, Jonathan B McHugh, Rajiv M Patel
Angiosarcoma (AS) is an uncommon vascular malignancy with an aggressive clinical course. Radiation-associated angiosarcoma (RAAS) and Stewart-Treves syndrome are associated with MYC gene amplification and protein overexpression, while other radiation-associated vascular lesions including atypical vascular lesions (AVL) are not associated with MYC overexpression. In contrast, de novo AS represent a group of molecularly heterogeneous tumours, for which MYC expression has not been extensively examined. In this study, MYC immunohistochemistry (IHC) was performed on representative whole tissue sections of a large retrospective cohort of de novo AS, RAAS, Stewart-Treves syndrome, and AVL and evaluated using a semi-quantitative scoring method...
October 22, 2016: Pathology
https://www.readbyqxmd.com/read/27760262/associations-between-retinal-pigment-epithelium-and-drusen-volume-changes-during-the-lifecycle-of-large-drusenoid-pigment-epithelial-detachments
#5
Chandrakumar Balaratnasingam, Lawrence A Yannuzzi, Christine A Curcio, William H Morgan, Giuseppe Querques, Vittorio Capuano, Eric Souied, Jesse Jung, K Bailey Freund
Purpose: Drusenoid pigment epithelial detachments (PEDs) are a defined path to atrophy in age-related macular degeneration (AMD). We analyzed the relationships between retinal pigment epithelium (RPE) and drusen volume changes during the PED lifecycle, using spectral-domain optical coherence tomography (SD-OCT). Methods: Twenty-one cases of drusenoid PED tracked using SD-OCT through periods of growth and collapse were evaluated. Volumetric calculations and piece-wise linear regression analysis were used to determine the breakpoint between growth and collapse...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27759421/takotsubo-cardiomyopathy-following-recurrent-doses-of-albuterol-due-to-asthma-attack-a-very-rare-case-report
#6
Saeed Alipour Parsa, Isa Khaheshi, Mehdi Memaryan, Mohammadreza Naderian
To present an unusual case in order to clarify one of the most important differential diagnoses of ST-elevation myocardial infarction in a postmenopausal woman. A 72-year-old woman with asthma attack and retrosternal chest pain was presented to our emergency unit. She had used albuterol spray ten-times before admission due to accentuated dyspnea. Initial ECG revealed ST-segment elevation in leads V1-V6, I and aVL. Emergent coronary angiography indicated normal coronary arteries, and left ventriculography showed significant akinesia of apical segments...
November 2016: Future Cardiology
https://www.readbyqxmd.com/read/27759343/early-repolarisation-changes-in-ecg-are-they-benign-or-malignant
#7
Oruganti Sai Satish, K Sashikanth Srivastav
Till recently, ST segment elevation in the absence of conduction abnormalities or chest pain occurring particularly in young bradycardia individuals has been considered a normal variant called early repolarisation (ER). However, recent studies suggest a more worrisome picture as patients with history of idiopathic ventricular fibrillation showed increased prevalence of ER in ECG. ER is an ECG pattern characterised by elevation of the QRS-ST junction (J point) ≥ 2 mv from baseline in the inferior (II, III, aVF) or lateral (I, aVL, V4-V6) leads manifested as QRS slurring or notching...
July 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27755515/ecg-pattern-in-reverse-takotsubo-cardiomyopathy-demonstrated-in-5-cases-with-intracranial-hemorrhage
#8
Waldemar Elikowski, Małgorzata Małek-Elikowska, Bartosz Kudliński, Paweł Skrzywanek, Sławomir Smól, Stanisław Rzymski
In typical takotsubo cardiomyopathy (TC) apical transient left ventricular dysfunction with concomitant ECG changes mimicking acute anterior myocardial infarction can be observed. Reverse TC (RTC) characterized by contractile disturbances in all basal and often simultaneous mid-ventricular segments is definitely less frequent. ECG pattern of RTC is less known. The authors present ECG findings in 5 cases of RTC in course of intracranial hemorrhage (ICH); 3 patients were diagnosed with subarachnoid hemorrhage (SAH) and the other two with intracerebral hemorrhage or subdural posttraumatic hematoma...
September 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27755397/a-novel-electrocardiogram-algorithm-utilizing-st-segment-instability-for-detection-of-cardiopulmonary-arrest-in-single-ventricle-physiology-a-retrospective-study
#9
Eric L Vu, Craig G Rusin, Dan J Penny, Kathy K Kibler, Ronald Blaine Easley, Brendan Smith, Dean Andropoulos, Ken Brady
OBJECTIVE: We evaluated ST-segment monitoring to detect clinical decompensation in infants with single ventricle anatomy. We proposed a signal processing algorithm for ST-segment instability and hypothesized that instability is associated with cardiopulmonary arrests. DESIGN: Retrospective, observational study. SETTING: Tertiary children's hospital 21-bed cardiovascular ICU and 36-bed step-down unit. PATIENTS: Twenty single ventricle infants who received stage 1 palliation surgery between January 2013 and January 2014...
October 13, 2016: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/27754742/coronary-artery-spasm-is-st-elevation-key-for-diagnosis
#10
Pedro A Villablanca, David F Briceno, Anand D Jagannath, Martin Cohen, Robert Pyo
Coronary vasospasm is uncommon during pregnancy and the postpartum period. We present a very rare case of an acute coronary vasospasm in a 36-year-old woman who was two weeks postpartum. The coronary arteriograms showed a coronary vasospasm in the distal left anterior descending and circumflex coronary arteries. Electrocardiogram (ECG) presentation was atypical, with T-wave inversions in leads I, aVL, and V2 to V6. To our knowledge, this is the first case with a well-documented coronary artery vasospasm in a postpartum woman without the classic ST elevation on ECG...
October 18, 2016: Acute Cardiac Care
https://www.readbyqxmd.com/read/27754094/os-20-08-gender-adjustment-and-cutoff-levels-of-cornell-product-in-electrocardiogram-among-japanese-hypertensive-patients
#11
Joji Ishikawa, Ayumi Toba, Yuko Yamanaka, Shintaro Watanabe, Kazumasa Harada
OBJECTIVE: Left ventricular hypertrophy (LVH) diagnosed by Cornell product in electrocardiogram predicted future stroke events at lower thresholds in Japanese general populations than those in western countries; therefore, we thought to evaluate whether the gender-adjustment and the levels of Cornell product to detect echo LVH was appropriate in Japanese subjects. DESIGN AND METHOD: We consecutively enrolled 345 hypertensive patients who were performed echocardiography for the screening of LVH...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27751374/diagnostic-accuracy-of-several-electrocardiographic-criteria-for-the-prediction-of-atrioventricular-nodal-reentrant-tachycardia
#12
Juliana Filgueiras Medeiros, Fábio Martins Nardo-Botelho, Lara Cristina Felix-Bernardes, Lucas Hollanda-Oliveira, Lucas Bassolli de Oliveira-Alves, Ênia Lúcia-Coutinho, Cristiano Dietrich, Adriano Caixeta, Jose Marconi Almeida-de-Sousa, Ântonio Carlos-Carvalho, Cláudio Cirenza, Ângelo Amato Vicenzo-de-Paola
BACKGROUND AND AIMS: Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common form of paroxysmal supraventricular tachycardia (SVT) whose diagnosis can be strongly suspected based on the surface eletrocardiogram alone. The purpose of this study is to determine the diagnostic accuracy of several electrocardiographic (ECG) criteria for the prediction of AVNRT. METHODS: Between November 2010 and January 2014, a total of 256 patients who underwent electrophysiological testing (EP) with regular, paroxysmal and narrow QRS complex tachycardia were prospectively enrolled...
July 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27747166/right-ventricular-failure-predicted-from-right-bundle-branch-block-cardiac-magnetic-resonance-imaging-validation
#13
Santhosh R Devarapally, Sameer Arora, Ali Ahmad, Mike Sood, Amaar El Sergany, Terrence Sacchi, Barry Saul, Rahul Gaglani, John Heitner
BACKGROUND: Right ventricular (RV) failure has proven to be independently associated with adverse outcomes. Electrocardiographic parameters assessing RV function are largely unknown, making echocardiography the first line for RV function assessment. It is however, limited by geometrical assumptions and is inferior to cardiac magnetic resonance imaging (CMRI) which is widely regarded as the most accurate tool for assessing RV function. METHODS: We seek to determine the correlation of ECG parameters of right bundle branch block (RBBB) with RV ejection fraction (EF) and RV dimensions using the CMRI...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27703795/heart-attack-in-the-course-of-lithium-overdose
#14
Kalkan Asim, Yeniocak Selman, Yazici Suleyman, Karcioglu Ozgur, Bilir Ozlem, Ersunan Gokhan
INTRODUCTION: Lithium overdose can be associated with cardiac toxicity, especially in those with underlying heart disease. Toxic levels of serum lithium are associated with cardiotoxic effects ranging from simple ECG disorders to dysrhythmias, cardiomyopathy and even acute myocardial infarction (AMI). This report describes a patient with AMI accompanied by high blood levels of lithium. CASE PRESENTATION: A 62-year-old woman was admitted to the emergency department due to weakness and acute chest pain...
July 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/27662187/obesity-and-ecg-left-ventricular-hypertrophy
#15
Maria L Muiesan, Massimo Salvetti, Augusto Di Castelnuovo, Anna Paini, Deodato Assanelli, Simona Costanzo, Fabio Badilini, Martino Vaglio, Maria B Donati, Enrico Agabiti Rosei, Giovanni de Gaetano, Licia Iacoviello
AIM: Our aim was to investigate the prevalence and the prognostic significance for fatal and nonfatal cerebrovascular and cardiovascular events of different ECG criteria for left ventricular hypertrophy (LVH) in normal weight, overweight and obese patients in an adult Italian population. METHODS: A total of 18 330 adults (mean age 54 ± 11 years, 55% women, 53% hypertensive patients) were analyzed from the Moli-sani cohort. Obesity was defined using the ATPIII criteria...
January 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27643019/os-20-08-gender-adjustment-and-cutoff-levels-of-cornell-product-in-electrocardiogram-among-japanese-hypertensive-patients
#16
Joji Ishikawa, Ayumi Toba, Yuko Yamanaka, Shintaro Watanabe, Kazumasa Harada
OBJECTIVE: Left ventricular hypertrophy (LVH) diagnosed by Cornell product in electrocardiogram predicted future stroke events at lower thresholds in Japanese general populations than those in western countries; therefore, we thought to evaluate whether the gender-adjustment and the levels of Cornell product to detect echo LVH was appropriate in Japanese subjects. DESIGN AND METHOD: We consecutively enrolled 345 hypertensive patients who were performed echocardiography for the screening of LVH...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27640006/clinical-characteristics-choroidal-neovascularization-and-predictors-of-visual-outcomes-in-acquired-vitelliform-lesions
#17
Chandrakumar Balaratnasingam, Quan V Hoang, Maiko Inoue, Christine A Curcio, Rosa Dolz-Marco, Nicolas A Yannuzzi, Elona Dhrami-Gavazi, Lawrence A Yannuzzi, K Bailey Freund
PURPOSE: To quantify the temporal properties of the acquired vitelliform lesion (AVL) lifecycle, define the clinical characteristics of choroidal neovascularization (NV) in this setting and determine the predictors of long-term visual outcomes. DESIGN: Retrospective cohort study METHODS: Clinical and imaging data from 199 eyes of 124 consecutive patients with AVLs associated with age-related macular degeneration (AMD) and adult-onset foveomacular vitelliform dystrophy (AOFVD) were analyzed...
September 14, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27625170/prevalence-and-electrocardiographic-and-electrophysiological-characteristics-of-idiopathic-ventricular-arrhythmias-originating-from-intramural-foci-in-the-left-ventricular-outflow-tract
#18
Takumi Yamada, Harish Doppalapudi, William R Maddox, H Thomas McElderry, Vance J Plumb, G Neal Kay
BACKGROUNDS: Idiopathic ventricular arrhythmias (VAs) originating from the left ventricular outflow tract (LVOT) sometimes require catheter ablation from both the endocardial and epicardial sides for their elimination, suggesting the presence of intramural VA foci. This study investigated the prevalence and electrocardiographic and electrophysiological characteristics of these idiopathic intramural LVOT VAs when compared with the idiopathic endocardial and epicardial LVOT VAs. METHODS AND RESULTS: We studied 82 consecutive VAs with origins in the aortomitral continuity (n=30), LV summit (n=34), and intramural site (n=18)...
September 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27604657/electrocardiographic-detection-of-hypertensive-left-atrial-enlargement-in-the-presence-of-obesity-re-calibration-against-cardiac-magnetic-resonance
#19
J C L Rodrigues, T Erdei, A G Dastidar, B McIntyre, A E Burchell, L E K Ratcliffe, E C Hart, M C K Hamilton, J F R Paton, A K Nightingale, N E Manghat
Left atrial enlargement (LAE) has adverse prognostic implications in hypertension. We sought to determine the accuracy of five electrocardiogram (ECG) criteria for LAE in hypertension relative to cardiac magnetic resonance (CMR) gold standard and investigate the effect of concomitant obesity. One hundred and thirty consecutive patients (age: 51.4±15.1 years, 47% male, 51% obese, systolic blood pressure (BP): 171±29 mm Hg, diastolic BP: 97±15 mm Hg) referred for CMR (1.5 T) from a tertiary hypertension clinic were included...
September 8, 2016: Journal of Human Hypertension
https://www.readbyqxmd.com/read/27569994/positive-allosteric-modulators-of-the-%C3%AE-7-nicotinic-acetylcholine-receptor-potentiate-glutamate-release-in-the-prefrontal-cortex-of-freely-moving-rats
#20
D M Bortz, B A Upton, J D Mikkelsen, J P Bruno
Positive allosteric modulators (PAMs) of α7 nicotinic acetylcholine receptors (α7nAChRs) exhibit pro-cognitive effects in animal models of schizophrenia and are targets for the discovery of cognition-enhancing drugs. However, little is known about their in vivo mechanism of action because such studies have been performed in vitro. Here we test the hypothesis that PAMs' potentiation of glutamate release in prefrontal cortex depends upon the level of endogenous cholinergic activity. NMDA stimulation of the nucleus accumbens shell (0...
December 2016: Neuropharmacology
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