keyword
MENU ▼
Read by QxMD icon Read
search

Left bundle branch block

keyword
https://www.readbyqxmd.com/read/29681178/-the-significance-of-ecg-recorded-at-hospitalization-in-determining-the-prognosis-of-patients-treated-with-myocardial-infarction
#1
András Jánosi, Péter Ofner, János Tomcsányi, Gábor Müller, Richárd Hável, Asma Réka Soczó, Timea Váradi, Tamás Ferenci
INTRODUCTION AND AIM: By using the database of the National Registry of Myocardial Infarction, the authors examine the prognosis of patients treated with acute myocardial infarction, in case of whom there was new or presumably new left bundle branch block (nLBBB) on the ECG recorded at hospitalization. METHOD: We recorded the details of 18 091 patients treated with acute myocardial infarction (AMI) between 1 January 2014 and 30 June 2015 in the National Registry of Myocardial Infarction...
April 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29680771/exercise-induced-left-bundle-branch-block-in-isotopic-exercise-test-findings-and-prognostic-value
#2
M V Gomez, B C Lorente Castro, P Jané, L García-Zoghby, A Martínez-Lorca, J A Pérez
INTRODUCTION: Exercise-induced left bundle branch block (EI-LBBB) is a rare circumstance of unknown significance. The purpose of this paper is to describe the scintigraphic features and the prognostic value of this finding. MATERIAL AND METHODS: We reviewed the features of 1,885 patients who had visited our department to undergo GATED-SPECT ergometry to diagnose ischaemic heart disease. Seven patients showed EI-LBBB throughout the exercise testing. Coronary angiography was performed in 4 of them...
April 18, 2018: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29675905/transient-left-anterior-and-septal-fascicular-blocks-after-self-expandable-percutaneous-transcatheter-aortic-valve-implantation
#3
Andrés R Pérez-Riera, Raimundo Barbosa-Barros, Mariana F Cabral de Oliveira, Rodrigo Daminello-Raimundo, Luiz C de Abreu, Kjell Nikus
Transcatheter aortic valve implantation (TAVI) is indicated in severe symptomatic aortic stenosis, when there is intermediate-high surgical risk, or a condition considered inoperable, as in the case of "porcelain aorta" that could turn clamping or cannulation of the ascending aorta hazardous in open-heart surgery. Among the complications of this less invasive procedure, intraventricular conduction disorders subsequent to the procedure stand out. TAVI causes worsening of intraventricular dromotropic disorders in more than 75% of the cases, with the presence of preexisting right bundle branch block and first-degree atrioventricular block, deep prosthesis implant, male gender, size of the aortic annulus smaller than the prosthesis, and porcelain aorta being predictive of requirement for permanent pacemaker implant...
April 19, 2018: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29671237/acute-torrential-mitral-regurgitation-during-transcatheter-aortic-valve-replacement-a-case-report
#4
Yoshiyuki Yamashita, Hiromichi Sonoda, Tomoki Ushijima, Akira Shiose
BACKGROUND: Transcatheter aortic valve replacement (TAVR) is a minimally invasive approach to aortic valve replacement. However, critical cardiovascular collapse can occur during the procedure for various reasons. CASE PRESENTATION: A 90-year-old man with severe aortic stenosis and left circumflex artery stenosis developed acute torrential mitral regurgitation (MR) during TAVR. The valve deployment process induced left ventricular dyssynchrony due to left bundle-branch block and myocardial ischemia in the left circumflex artery region with torrential MR...
April 18, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29665757/severe-brady-arrhythmias-in-systemic-lupus-erythematosus-prevalence-etiology-and-associated-factors
#5
K Tselios, D D Gladman, P Harvey, J Su, M B Urowitz
Background Severe brady-arrhythmias, requiring a permanent pacemaker (PPM), have been sparsely reported in systemic lupus erythematosus (SLE). The aim of this study was to describe the characteristics of such arrhythmias in a defined lupus cohort. Patients and methods The database of the Toronto Lupus Clinic ( n = 1366) was searched for patients who received a PPM. Demographic, clinical, immunological and therapeutic variables along with electrocardiographic (ECG) and echocardiographic findings (based on the last available test prior to PPM) were analyzed...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29661666/pseudo-wellens-syndrome-and-intermittent-left-bundle-branch-block-in-a-case-of-acute-cholecystitis
#6
Steffen Grautoff, Martin Balog, Guenther Winde
We present a case of a 54-year-old male patient who was admitted to our Emergency Department (ED) with localized epigastric pain. Inflammation markers, ultrasound, and CT scan were inconsistent with an initial diagnosis of cholecystitis. However, there was additional evidence of cholecystolithiasis. The ECG showed new anterior biphasic T waves typical for a Wellens' type A ECG. Additionally, the patient had an intermittent left bundle branch block (LBBB). The diagnostic challenges in differentiating possible diagnoses will be described, to which in this case, were either acute cholecystitis or acute coronary syndrome (ACS)...
April 7, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29658207/ablation-induced-change-in-the-course-of-fascicular-tachycardia
#7
Avishag Laish-Farkash, Avi Sabbag, Michael Glikson, Aharon Glick, Vladimir Khalameizer, Amos Katz, Yoav Michowitz
BACKGROUND: Multiform fascicular tachycardia (FT) was recently described as a ventricular tachycardia (VT) that has a reentrant mechanism using multiple fascicular branches and produces alternate fascicular VT forms. Ablating the respective fascicle may cause a change in the reentrant circuit resulting in a change in morphology. Ablation of the septal fascicle is crucial for successful treatment. OBJECTIVES: To describe four cases of FT in which ablation induced a change in QRS morphologies and aggravated clinical course...
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29652656/electrocardiogram-abnormalities-related-to-anti-malarials-in-systemic-lupus-erythematosus
#8
Taneisha K McGhie, Paula Harvey, Jiandong Su, Nicole Anderson, George Tomlinson, Zahi Touma
OBJECTIVES: Cardiotoxicity with potential conduction/structural abnormalities on electrocardiogram (ECG) have been reported with anti-malarial (AM). We aimed to study whether cumulative AM is associated with ECG abnormalities. METHODS: A standard resting supine ECG was performed on consecutive patients attending the Lupus Clinic since 2012. ECG abnormalities were grouped into structural [left ventricular hypertrophy or atrial enlargement] and conduction abnormalities [prolonged corrected QT interval (QTc), short PR interval, left bundle branch block (LBBB), right bundle branch block (RBBB) and atrioventricular block (AVB), bradycardia, tachycardia, premature atrial complex, ectopic atrial rhythm, atrial fibrillation, premature ventricular complex and ventricular bigeminy]...
April 13, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29628478/arrhythmogenic-right-ventricular-cardiomyopathy-with-multiple-thrombi-and-ventricular-tachycardia-of-atypical-left-branch-bundle-block-morphology
#9
Shenzhen Gong, Xin Wei, Guyue Liu, Feng Wu, Xiaoping Chen
A 61-year-old male patient was admitted to our hospital with recurrent palpitations and syncope. Electrocardiography, echocardiography, and contrast-enhanced computed tomography were performed. The patient was diagnosed with arrhythmogenic right ventricular cardiomyopathy (ARVC) complicated by multiple thrombi, and ventricular tachycardia (VT) without typical left bundle branch block (LBBB) morphology. This case suggests that VT is not always the sole contributor to syncope and death in patients with ARVC, and pulmonary embolism should be considered...
April 6, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29628460/effect-of-qrs-morphology-and-duration-on-clinical-outcomes-after-cardiac-resynchronization-therapy-analysis-of-japanese-multicenter-registry
#10
Takafumi Oka, Koichi Inoue, Koji Tanaka, Yuko Hirao, Takaaki Isshiki, Takeshi Kimura, Masakiyo Nobuyoshi, Satoshi Shizuta, Takeshi Arita, Satoki Fujii, Katsuomi Iwakura, Kenshi Fujii, Kenji Ando
BACKGROUND: QRS duration (QRSd) and morphology are established response predictors of cardiac resynchronization therapy (CRT). However, evidence in Japanese populations is lacking.Methods and Results:We retrospectively analyzed the Japanese multicenter CRT database. We divided patients according to their intrinsic QRSd and morphology, and assessed echocardiographic responses and clinical outcomes. The primary endpoint was a composite of all-cause death or hospitalization because of heart failure...
April 7, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29625702/comparison-of-long-term-survival-benefits-with-cardiac-resynchronization-therapy-in-patients-with-mild-heart-failure-with-versus-without-diabetes-mellitus-from-the-multicenter-automatic-defibrillator-implantation-trial-with-cardiac-resynchronization-therapy
#11
Valentina Kutyifa, Syed Yaseen Naqvi, Mary Brown, Scott McNitt, Ilan Goldenberg, Helmut Klein, Arthur J Moss
We have previously shown a reduction in HF events with cardiac resynchronization therapy with defibrillator (CRT-D) in patients with mild heart failure (HF) and diabetes mellitus (DM). It remains unknown whether HF remission in DM patients with CRT-D translates into reduced mortality. The effects of CRT-D versus an implantable cardioverter-defibrillator (ICD) alone to reduce long-term mortality were assessed in patients with left bundle branch block with DM (n = 386) and without DM (n = 982), enrolled in the Multicenter Automatic Defibrillator Implantation Trial With Cardiac Resynchronization Therapy (MADIT-CRT)...
March 14, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29622977/clinical-and-laboratory-characteristics-of-short-term-mortality-in-egyptian-patients-with-acute-heart-failure
#12
Ahmad Tageldien Abdellah, Alaa Desouky Mohamed, Hamdy Ali Hendawi, Magdi Ali Omera
Objective: To identify the clinical and laboratory predictors of short-term mortality in patients with acute heart failure (AHF). Subjects and methods: We conducted a prospective, single center study on 120 consecutive patients presented with acute heart failure to the emergency department. All patients had clinical, laboratory, electrocardiographic and echocardiographic evaluation. Short-term mortality was reported within 30 days of presentation. Results: Mean age was 59...
September 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622975/ischemia-modified-albumin-ima-in-acute-coronary-syndrome-acs-and-left-bundle-branch-block-lbbb-does-it-make-the-difference
#13
Mohamed Abdel Kader Abdel Wahab
Background: Management of patients with a suspected ACS and LBBB is a challenge to the clinician. Aim: To detect the ability of IMA to exclude myocardial ischemia in suspected patients with ACS and LBBB. Material and methods: A total of 68 patients with suspected ACS and LBBB (group I) and another twenty patients age and sex matched known to have LBBB with normal coronary angiography (group II) were included in this study and subjected to: routine laboratory tests, 12 lead ECG, echocardiography, and measurement of serum troponin I (TnI) and IMA (measured by ELISA)...
September 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622965/the-relation-between-coronary-artery-disease-severity-and-fragmented-qrs-complex-in-patients-with-left-bundle-branch-block
#14
Mohamed M Al-Daydamony, Tamer M Mustafa
Background: The diagnosis of coronary artery disease (CAD) in patients with LBBB represents a clinical challenge. The presence of fragmented QRS (fQRS) complex on surface ECG may be related to myocardial ischemia, scarring or fibrosis. Objectives: To investigate the relation between fQRS and the presence and severity of CAD in patients with LBBB. Patients and methods: 56 patients with symptoms suggesting CAD and complete LBBB were submitted to full history taking and clinical examination, complete 12-leads electrocardiography (ECG) to confirm the diagnosis of LBBB and to diagnose the fragmented wide QRS (f-wQRS) complex, echocardiography, and coronary angiography; lesions with ⩾70% narrowing in major epicardial artery or ⩾50% narrowing in the left main coronary artery were considered significant; and Gensini score was calculated...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622376/mahaim-fiber-mediated-tachycardia
#15
Gustavo Lima da Silva, Nuno Cortez-Dias, Ana Bernardes, João Sousa
We present the case of a previously healthy 42-year-old man who attended the emergency department due to a sudden onset of rapid and regular palpitations. The ECG showed 190 bpm, wide QRS with left bundle branch block tachycardia. He was started on amiodarone with progression to 230 bpm, wide QRS tachycardia with multiple morphologies, followed by spontaneous conversion to sinus rhythm, normal PR interval and rS pattern in LIII. The echocardiogram was negative for structural heart disease. The electrophysiological study demonstrated the presence of an accessory pathway with anterograde decremental conduction and no retrograde conduction...
April 2, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29616388/cardiac-resynchronization-therapy-response-in-heart-failure-patients-with-different-subtypes-of-true-left-bundle-branch-block
#16
Javier García-Seara, Diego Iglesias Alvarez, Belen Alvarez Alvarez, Francisco Gude Sampedro, Jose L Martínez Sande, Moisés Rodríguez-Mañero, Bahij Kreidieh, Xesus Alberte Fernández-López, Laila González Melchor, José Ramón González Juanatey
PURPOSE: Left bundle branch block (LBBB) configuration has been described as a predictor of response to cardiac resynchronization therapy (CRT). We investigated whether different subtypes of true LBBB configuration could help select patients with better response and clinical outcome. METHODS: This retrospective study included 198 consecutive LBBB patients implanted with a CRT. True LBBB was defined using the Strauss and the Predict study criteria. Echocardiographic response was evaluated by the reduction in left ventricular end-systolic volume (LVESV) and the increase in left ventricular ejection fraction (LVEF)...
April 3, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29614430/a-novel-wavelet-sequences-based-on-deep-bidirectional-lstm-network-model-for-ecg-signal-classification
#17
Özal Yildirim
Long-short term memory networks (LSTMs), which have recently emerged in sequential data analysis, are the most widely used type of recurrent neural networks (RNNs) architecture. Progress on the topic of deep learning includes successful adaptations of deep versions of these architectures. In this study, a new model for deep bidirectional LSTM network-based wavelet sequences called DBLSTM-WS was proposed for classifying electrocardiogram (ECG) signals. For this purpose, a new wavelet-based layer is implemented to generate ECG signal sequences...
March 28, 2018: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29608235/an-electrocardiographic-diagnostic-model-for-differentiating-left-from-right-ventricular-outflow-tract-tachycardia-origin
#18
Zhuoqiao He, Ming Liu, Min Yu, Nan Lu, Jia Li, Tan Xu, Jinxiu Zhu, Mary Clare O'Gara, Michael O'Meara, Hong Ye, Xuerui Tan
INTRODUCTION: Although several electrocardiographic (ECG) algorithms have been proposed for differentiating the origins of outflow tract ventricular arrhythmias, the most optimal one has not been agreed on. The purpose of this study was to establish an ECG diagnostic model based on the previous ECG algorithms. METHODS AND RESULTS: The following ECG diagnostic model, Y = -1.15 × (TZ) -0.494 × (V2S/V3R), was developed by standard 12-lead ECG algorithms in 488 patients with idiopathic premature ventricular contractions or ventricular tachycardia with a left bundle branch block pattern and inferior axis QRS morphology...
April 2, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29606334/apical-transverse-motion-is-associated-with-interventricular-mechanical-delay-and-decreased-left-ventricular-function-in-children-with-dilated-cardiomyopathy
#19
Wei Hui, Cameron Slorach, Mark K Friedberg
BACKGROUND: Apical transverse motion (ATM) is associated with electromechanical dyssynchrony in adult dilated cardiomyopathy (DCM). Bundle branch block electromechanical dyssynchrony is uncommon in pediatric DCM, but ATM and its association with ventricular function have not been characterized. METHODS: Fifty-six children with DCM were retrospectively studied. Using echocardiography, ATM was assessed visually and by speckle-tracking longitudinal displacement of the interventricular septal and left ventricular (LV) lateral walls in opposite directions...
March 29, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29574887/is-exercise-stress-echocardiography-useful-in-patients-with-suspected-obstructive-coronary-artery-disease-who-have-resting-left-bundle-branch-block
#20
Bo Xu, Laura Dobson, Philip M Mottram, Arthur Nasis, James Cameron, Stuart Moir
BACKGROUND: Current guidelines support exercise stress echocardiography (ESE) for evaluation of suspected obstructive coronary artery disease (OCAD) in ambulant patients with left bundle branch block (LBBB). Data regarding the diagnostic utility of ESE in patients with LBBB are limited. HYPOTHESIS: We hypothesized that the diagnostic performance of ESE for the assessment of suspected OCAD is reduced in the context of LBBB. METHODS: We studied 191 consecutive patients with resting LBBB undergoing ESE for the investigation of suspected OCAD between 2008 and 2015 at our center...
March 25, 2018: Clinical Cardiology
keyword
keyword
40295
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"