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https://www.readbyqxmd.com/read/29790478/validation-of-a-novel-non-hyperaemic-index-of-coronary-artery-stenosis-severity-the-resting-full-cycle-ratio-validate-rfr-study
#1
Johan Svanerud, Jung-Min Ahn, Allen Jeremias, Marcel van 't Veer, Ankita Gore, Akiko Maehara, Aaron Crowley, Nico H J Pijls, Bernard De Bruyne, Nils P Johnson, Barry Hennigan, Stuart Watkins, Colin Berry, Keith G Oldroyd, Seung-Jung Park, Ziad A Ali
AIMS: Randomised controlled trials have reported instantaneous wave-free ratio (iFR) to be non-inferior to fractional flow reserve (FFR) for major adverse cardiovascular events at one year; however, iFR is limited by sensitive landmarking of the pressure waveform, and the assumption that maximal flow and minimal resistance occur during a fixed period of diastole. We sought to validate the resting full-cycle ratio (RFR), a novel non-hyperaemic index of coronary stenosis severity based on unbiased identification of the lowest distal coronary pressure to aortic pressure ratio (Pd/Pa), independent of the ECG, landmark identification, and timing within the cardiac cycle...
May 23, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29775674/the-prognostic-value-of-the-frontal-qrs-t-angle-is-comparable-to-cardiovascular-autonomic-neuropathy-regarding-long-term-mortality-in-people-with-diabetes-a-population-based-study
#2
O May, C B Graversen, M Ø Johansen, H Arildsen
Cardiovascular autonomic neuropathy (CAN) is a well known prognostic marker in diabetes. A large angle between the QRS- and the T-wave vector (QRS-T angle) in the electrocardiogram (ECG) has recently been introduced as another marker of poor prognosis. AIM: To assess and compare the long-term predictive power of the frontal plane QRS-T angle with CAN in people with diabetes. METHODS: In 1992-93 people with diabetes in the municipality of Horsens, Denmark, were identified by the prescription method andan age and gender stratified sample of 240 individuals with diabetes were randomly selected...
May 15, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29774167/complete-hypokalemic-quadriparesis-as-a-first-presentation-of-sj%C3%A3-gren-syndrome
#3
Jason An, Branko Braam
Rationale: We hope to increase awareness that hypokalemic paralysis may be the first presentation of Sjögren syndrome, for which potassium-sparing diuretics can be an effective adjunct to potassium replenishment. Presenting concerns: A 73-year-old female presented to a peripheral hospital with quadriparesis and a critically low serum potassium of 1.6 mmol/L with U waves on the electrocardiogram (ECG). The initial arterial blood gas showed a pH of 7.19, bicarbonate of 13 mEq/L, and a CO2 of 35 mm Hg...
2018: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/29754992/the-utility-of-routine-clinical-12-lead-ecg-in-assessing-eligibility-for-subcutaneous-implantable-cardioverter-defibrillator
#4
Jason A Thomas, Erick Andres Perez-Alday, Christopher Hamilton, Muammar M Kabir, Eugene A Park, Larisa G Tereshchenko
INTRODUCTION: The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a life-saving device. Recording of a specialized 3-lead electrocardiogram (ECG) is required for S-ICD eligibility assessment. The goals of this study were: (1) evaluate the effect of ECG filtering on S-ICD eligibility, and (2) simplify S-ICD eligibility assessment by development of an S-ICD ineligibility prediction tool, which utilizes the widely available routine 12-lead ECG. METHODS AND RESULTS: Prospective cross-sectional study participants [n = 68; 54% male; 94% white, with wide ranges of age (18-81 y), body mass index (19-53), QRS duration (66-150 ms), and left ventricular ejection fraction (37-77%)] underwent 12-lead supine, 3-lead supine and standing ECG recording...
May 8, 2018: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29733057/retraso-de-la-rama-descendente-de-la-onda-t-en-electrocardiogramas-sin-datos-de-riesgo-aparente-de-muerte-s%C3%A3%C2%BAbita
#5
Cuauhtémoc Acoltzin-Vidal, Elizabeth Rabling-Arellanos
Introducción: Se ha identificado que la prolongación de la rama descendente de la onda T del electrocardiograma (ECG) puede determinar riesgo de muerte súbita de origen cardiaco, pero se desconoce su importancia en población general. Objetivo: Proporcionar una herramienta de fácil adquisición y aplicación efectiva para identificar riesgo de muerte súbita en población general. Método: Medimos el índice rdT/jT (la rama descendente de la onda T/el espacio entre el punto j y el fin de la T) en 400 electrocardiogramas (ECG) totalmente normales, 656 con alteraciones que no afectan la repolarización ventricular y 82 con bloqueo de rama...
2018: Gaceta Médica de México
https://www.readbyqxmd.com/read/29723608/osborn-waves-following-out-of-hospital-cardiac-arrest-effect-of-level-of-temperature-management-and-risk-of-arrhythmia-and-death
#6
Edina Hadziselimovic, Jakob Hartvig Thomsen, Jesper Kjaergaard, Lars Køber, Claus Graff, Steen Pehrson, Niklas Nielsen, David Erlinge, Martin Frydland, Sebastian Wiberg, Christian Hassager
BACKGROUND: The Osborn or J-wave, an upright deflection of the J-point on the electrocardiogram (ECG), is often observed during severe hypothermia. A possible relation between Osborn waves (OW) and increased risk of ventricular arrhythmia has been reported. We sought to determine whether the level of targeted temperature management (TTM) following out-of-hospital cardiac arrest (OHCA) affects the prevalence of OW and to assess the associations between OW and risk of ventricular arrhythmia and death...
April 30, 2018: Resuscitation
https://www.readbyqxmd.com/read/29677051/electrocardiographic-predictors-of-atrial-fibrillation-in-nonhypertensive-and-hypertensive-individuals
#7
Arttu O Lehtonen, Ville L Langén, Kimmo Porthan, Mika Kähönen, Markku S Nieminen, Antti M Jula, Teemu J Niiranen
OBJECTIVE: The aim of this study was to compare the predictive value of ECG abnormalities for atrial fibrillation in nonhypertensive versus hypertensive individuals. METHODS: We recorded ECG and measured conventional cardiovascular risk factors in a nationwide population-based sample of 5813 Finns. We divided the participants into nonhypertensive (n = 3148) and hypertensive (n = 2665) individuals and followed the participants for incident atrial fibrillation events...
April 19, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29581710/electrocardiographic-measures-of-repolarization-dispersion-and-their-relationships-with-echocardiographic-indices-of-ventricular-remodeling-and-premature-ventricular-beats-in-hypertension
#8
Ana Ciobanu, Gary Tse, Tong Liu, Maria V Deaconu, Gabriela S Gheorghe, Adriana M Ilieşiu, Ioan T Nanea
Objective: To examine the relationship between Tpeak - Tend interval (Tpe) and Tpe/QT ratio with occurrence of ventricular premature beats (VPBs) and left ventricular remodeling in hypertension. Methods: A total of 52 patients with mild to moderate essential hypertension were included, undergoing echocardiography and 24-hours Holter monitoring. Ventricular remodeling was assessed by left ventricular mass index (LVMI) using the Devereux formula and diastolic function by transmitral E and A wave velocities and E/A ratio...
December 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29577347/electrocardiographic-predictors-of-validated-right-ventricular-outflow-tract-septal-pacing-for-correct-localization-of-transthoracic-echocardiography
#9
Huiqiang Wei, Jiaojiao Tang, Dongli Chen, Qianhuan Zhang, Yuanhong Liang, Lie Liu, Shulin Wu, Chunying Lin, Zhiming Yang, Chanjuan Chai
BACKGROUND: Electrocardiographic (ECG) characteristics of true right ventricular outflow tract (RVOT) septal pacing have not been clearly demonstrated. HYPOTHESIS: We hypothesized that ECG parameters would help operators differentiate true RVOT septum from non-septal septum. METHODS: We analyzed 151 patients who underwent pacemaker implantation with a ventricular lead in the RVOT. Transthoracic echocardiographic (TTE) determination of pacing sites was applied in all patients after implantation...
March 25, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29572717/ventricular-arrhythmias-originating-from-the-cardiac-crux-and-the-basal-inferior-segment-of-the-interventricular-septum-in-the-patients-with-structural-heart-diseases-characteristics-mapping-and-electrophysiological-properties
#10
Chung-Hsing Lin, Li-Wei Lo, Yenn-Jiang Lin, Shih-Lin Chang, Yu-Feng Hu, Ta-Chuan Tuan, Hung-Kai Huang, Cheng-Hung Chiang, Suresh Allamsetty, Jo-Nan Liao, Fa-Po Chung, Yao-Ting Chang, Chin-Yu Lin, Abigail Louise D Te, Shinya Yamada, Rohit Walia, Yuan Hung, Shih-Ann Chen
PURPOSE: There are few reports describing ventricular arrhythmias (VAs) from the crux and the corresponding endocardial site, i.e., the basal inferior segment of the interventricular septum (IVS). We aimed to investigate a distinct clinical group of VAs arising from the endocardium at this area in patients with structural heart diseases (SHD). METHODS: We included 17 patients with SHD and clinically documented VAs. Thirteen patients underwent endocardial mapping only...
March 23, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29560600/prevalence-of-cardiovascular-dysfunction-and-its-association-with-outcome-in-patients-with-acute-pancreatitis
#11
Raghavendra Prasada, Narendra Dhaka, Ajay Bahl, Thakur Deen Yadav, Rakesh Kochhar
BACKGROUND: Organ failure (OF) is the most important predictor of outcome in severe acute pancreatitis (SAP). Cardiovascular failure (CVSF) occurs in a variable proportion of patients with SAP. We aimed to study myocardial dysfunction in acute pancreatitis (AP) and its impact on the outcome. METHODS: In this prospective study between January 2011 and July 2012, consecutive eligible patients of AP were enrolled. Myocardial function was assessed by measuring CK-MB (creatine phosphokinase isoenzyme) and echocardiography at admission...
March 2018: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/29556784/study-on-ecg-in-the-adolescent
#12
Hung-Chi Lue, Mei-Hwan Wu, Jou-Kou Wang, Min-Tai Lin, Chun-Wei Lu, Shuenn-Nan Chiu, Chun-An Chen, En-Ting Wu, Ching-Chia Wang, Chun-Min Fu, Wei-Chien Tseng, Wei-Hsuan Chang, Meng-Chang Lee
Normal ECG values in newborns, infants, and children have been collected and published. ECG in the adolescent, however, remains, to be collected and studied. The present study was designed and carried out to establish the normal ECG standards in male and female adolescents. A total of 898 school children and adolescents screened and examined as healthy were divided by age and sex into 6-9, 9-13, and 13-18 years age-groups. A 12 lead conventional ECG was recorded in 10 mm/mV and 25 mm/s, utilizing an automated Fukuda Denshi FCP-4301, MS-DOS/IBM-AT ECG machine...
June 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29535268/atrial-cardiopathy-and-the-risk-of-ischemic-stroke-in-the-chs-cardiovascular-health-study
#13
Hooman Kamel, Traci M Bartz, Mitchell S V Elkind, Peter M Okin, Evan L Thacker, Kristen K Patton, Phyllis K Stein, Christopher R deFilippi, Rebecca F Gottesman, Susan R Heckbert, Richard A Kronmal, Elsayed Z Soliman, W T Longstreth
BACKGROUND AND PURPOSE: Emerging evidence suggests that an underlying atrial cardiopathy may result in thromboembolism before atrial fibrillation (AF) develops. We examined the association between various markers of atrial cardiopathy and the risk of ischemic stroke. METHODS: The CHS (Cardiovascular Health Study) prospectively enrolled community-dwelling adults ≥65 years of age. For this study, we excluded participants diagnosed with stroke or AF before baseline...
April 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29531592/electrocardiographic-parameters-as-predictors-of-response-to-cardiac-resynchronization-therapy
#14
Lidija Poposka, Vladimir Boskov, Dejan Risteski, Jane Taleski, Filip Janusevski, Elizabeta Srbinovska, Ljubica Georgievska-Ismail
INTRODUCTION: Although strict selection criteria are used to select patients for cardiac resynchronisation therapy, up to 30% of patients do not have a positive clinical response. PATIENTS: A total of 102 consecutive patients who had biventricular pacemaker/defibrillator (CRT-P or CRT-D) implanted were enrolled in this prospective observational study. RESULTS: During the average follow-up period of 24.3 months 5 patients died and 17 (16.7%) patients were hospitalised with the symptoms of heart failure; 75 (73...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29504323/electrocardiographic-manifestations-in-paediatric-wilson-disease
#15
Syeda Sara Batool Hamdani, Huma Arshad Cheema, Anjum Saeed, Hassan Suleman Malik, Tayaba Sehar
BACKGROUND: Wilson disease (WD) is one of the most common metabolic liver diseases in older children. It has a strong genetic background with autosomal recessive inheritance. WD is a multisystem disorder with predominant hepatic and neurological manifestations and variable age of presentation. The data on cardiac manifestations in children is very limited and only few adult studies are available in the literature. This study was planned to determine the frequency and spectrum of Electrocardiographic (ECG) changes in pediatric WD...
January 2018: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29502127/detection-of-acute-myocardial-infarction-in-a-pig-model-using-the-san-atrial-avn-his-saah-electrocardiogram-ecg-model-phs-a10-an-automated-and-integrated-signals-recognition-system
#16
Wenjiao Zhao, Guihua Lu, Li Liu, Zhishan Sun, Mingxin Wu, Wenyan Yi, Haiyan Chen, Yanhui Li, Lilong Tang, Jianping Zeng
BACKGROUND The aim of this study was to compare the use of the standard 12-lead electrocardiogram (ECG) with the SAN-Atrial-AVN-His (SAAH) ECG (Model PHS-A10), a new automated and integrated signals recognition system that detects micro-waveforms within the P, QRS, and T-wave, in a pig model of acute myocardial infarction (MI). MATERIAL AND METHODS Six medium-sized domestic Chinese pigs underwent general anesthesia, and an angioplasty balloon was placed and dilated for 120 minutes in the first diagonal coronary artery arising from the left anterior descending (LAD) coronary artery...
March 4, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29461965/post-ventricular-premature-contraction-phase-correction-improves-the-predictive-value-of-average-t-wave-alternans-in-ambulatory-ecg-recordings
#17
Alba Martin-Yebra, Violeta Monasterio, Iwona Cygankiewicz, Antoni Bayes-de-Luna, Enrico G Caiani, Pablo Laguna, Juan Pablo Martinez
OBJECTIVE: We proposed and evaluated a method for correcting possible phase shifts provoked by the presence of ventricular premature contractions (VPCs) for a better assessment of T-wave alternans (TWA).  Methods: First, we synthesized ECG signals with artificial TWA in the presence of different noise sources. Then, we assessed the prognostic value for sudden cardiac death (SCD) of the long-term average of TWA amplitude (the index of average alternans, ) in ambulatory ECG signals from congestive heart failure (CHF) and evaluated whether it is sensitive to the presence of VPCs...
March 2018: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/29430560/epilepsy-is-associated-with-ventricular-alterations-following-convulsive-status-epilepticus-in-children
#18
Wail Ali, Beth A Bubolz, Linh Nguyen, Danny Castro, Jorge Coss-Bu, Michael M Quach, Curtis E Kennedy, Anne E Anderson, Yi-Chen Lai
Objective: Convulsive status epilepticus can exert profound cardiovascular effects in adults including ventricular depolarization-repolarization abnormalities. Whether status epilepticus adversely affects ventricular electrical properties in children is less understood. Therefore, we sought to characterize ventricular alterations and the associated clinical factors in children following convulsive status epilepticus. Methods: We conducted a 2-year retrospective, case-control study...
December 2017: Epilepsia Open
https://www.readbyqxmd.com/read/29424731/efficacy-of-cardiac-shock-wave-therapy-in-patients-with-stable-angina-the-design-of-randomized-triple-blind-sham-procedure-controlled-study
#19
Evgeny Shkolnik, Greta Burneikaite, Jelena Celutkiene, Mikhail Scherbak, Gitana Zuoziene, Birute Petrauskiene, Ekaterina Trush, Aleksandras Laucevicius, Yury Vasyuk
OBJECTIVE: Despite revascularization and optimal medical treatment (OMT), patients with angina often have a reduced quality of life due to inadequate relief from symptoms. Recent studies have shown that the application of shock waves may reduce angina symptoms and improve quality of life, exercise capacity, and myocardial perfusion due to the stimulation of angiogenesis. However, there is limited evidence due to small, single-arm, single-center studies of low to moderate quality. The purpose of this study is to evaluate the impact of cardiac shock wave therapy (CSWT) on exercise tolerance and angina symptoms in patients with coronary artery disease and objective evidence of myocardial ischemia who cannot undergo traditional revascularization and experience angina despite OMT in comparison to sham procedure...
February 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29387113/magnesium-sulfate-protects-the-heart-against-carbon-monoxide-induced-cardiotoxicity-in-rats
#20
Kaveh Tabrizian, Hamideh Khodayari, Ramin Rezaee, Hosseinali Jahantigh, Gholamreza Bagheri, Konstantinos Tsarouhas, Mahmoud Hashemzaei
Carbon monoxide (CO), a toxic gas produced via incomplete fossil fuel combustion, has several poisonous effects in the heart including induction of necrosis, apoptosis, and electrocardiogram (ECG) changes. Magnesium sulfate (MS) is a drug with cardioprotective effects especially when used after ischemia/reperfusion. In the current study, we aimed to evaluate MS cardioprotective effects following CO poisoning. Animals were exposed to CO 3000 ppm for 1 h and immediately after the exposure period and on the next 4 days (a total of 5 consecutive doses given on a daily basis), MS (75, 150 and 300 mg/kg) was injected intraperitoneally (i...
February 2018: Research in Pharmaceutical Sciences
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