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https://www.readbyqxmd.com/read/29161419/incidence-of-postoperative-atrial-fibrillation-recurrence-in-patients-discharged-in-sinus-rhythm-after-cardiac-surgery-a-systematic-review-and-meta-analysis
#1
Nicole Lowres, Georgina Mulcahy, Kai Jin, Robyn Gallagher, Lis Neubeck, Ben Freedman
Postoperative atrial fibrillation (POAF) is associated with increased stroke risk and mortality post-discharge. POAF is often considered transient; however, recurrence is likely under-recognized as symptoms are an unreliable guide. Surveillance post-discharge may identify asymptomatic POAF recurrences in patients discharged in sinus rhythm. Therefore, we performed a systematic review and meta-analysis of studies investigating POAF recurrence post-discharge, in patients with new-onset POAF following cardiac surgery who reverted to sinus rhythm prior to discharge...
November 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29153151/what-is-the-best-st-segment-recovery-parameter-to-predict-clinical-outcome-and-myocardial-infarct-size-amplitude-speed-and-completeness-of-st-segment-recovery-after-primary-percutaneous-coronary-intervention-for-st-segment-elevation-myocardial-infarction
#2
Wichert J Kuijt, Cindy L Green, Niels J W Verouden, Joost D E Haeck, Dan Tzivoni, Karel T Koch, Gregg W Stone, Alexandra J Lansky, Samuel Broderick, Jan G P Tijssen, Robbert J de Winter, Matthew T Roe, Mitchell W Krucoff
AIMS: ST-segment recovery (STR) is a strong mechanistic correlate of infarct size (IS) and outcome in ST-segment elevation myocardial infarction (STEMI). Characterizing measures of speed, amplitude, and completeness of STR may extend the use of this noninvasive biomarker. METHODS AND RESULTS: Core laboratory continuous 24-h 12-lead Holter ECG monitoring, IS by single-photon emission computed tomography (SPECT), and 30-day mortality of 2 clinical trials of primary percutaneous coronary intervention in STEMI were combined...
November 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29152303/multiple-ultrasound-cavitation-enabled-treatments-for-myocardial-reduction
#3
Douglas L Miller, Xiaofang Lu, Chunyan Dou, Yiying I Zhu, Mario L Fabiilli, Gabe E Owens, Oliver D Kripfgans
Background: Ultrasound myocardial cavitation enabled treatment (MCET) is an image-guided method for tissue reduction. In this study, a strategy of fractionated (multiple) treatments was tested for efficacy. Methods: Dahl SS rats were anesthetized and prepared for treatment with a focused ultrasound transducer in a warm water bath. Aiming at the anterior left ventricular wall was facilitated by imaging with a 10 MHz phased array (10S, GE Vivid 7, GE Vingmed Ultrasound, Horten, Norway)...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/29151053/protocol-of-the-sepsivit-study-a-prospective-observational-study-to-determine-whether-continuous-heart-rate-variability-measurement-during-the-first-48-hours-of-hospitalisation-provides-an-early-warning-for-deterioration-in-patients-presenting-with-infection
#4
Vincent M Quinten, Matijs van Meurs, Maurits H Renes, Jack J M Ligtenberg, Jan C Ter Maaten
INTRODUCTION: One in five patients with sepsis deteriorates within 48 hours after hospital admission. Regrettably, a clear tool for the early detection of deterioration is still lacking. The SepsiVit study aims to determine whether continuous heart rate variability (HRV) measurement can provide an early warning for deterioration in patients presenting with suspected infection or sepsis to the emergency department (ED). METHODS AND ANALYSIS: The protocol of a prospective observational study in the ED...
November 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/29146378/association-of-p-wave-duration-index-with-atrial-fibrillation-recurrence-after-cryoballoon-catheter-ablation
#5
Onur Kaypakli, Hasan Koca, Durmuş Yıldıray Şahin, Sefa Okar, Fadime Karataş, Mevlüt Koç
AIM: We aimed to investigate the relationship between the recurrence of AF and P wave duration index (PWDI) in patients with nonvalvular PAF. METHODS: We included 114 patients who underwent cryoballoon catheter ablation with the diagnosis of paroxysmal atrial fibrillation (PAF) (55 male, 59 female; mean age 55.5±10,9years). PWDI was calculated by dividing the Pwd by the PR interval in DII lead of 12‑lead ECG. Patients had regular follow-up visits with 12-lead ECG, medical history and clinical evaluation...
October 9, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29144513/predictors-of-heart-rhythm-disturbances-in-hypertensive-obese-patients-with-obstructive-sleep-apnea
#6
Lyudmila Sergeevna Korostovtseva, Nadezhda Edvinovna Zvartau, Oxana Petrovna Rotar, Yurii Vladimirovich Sviryaev, Aleksandra Olegovna Konradi
Objective: To assess the incidence and predictors of heart rhythm and conduction disturbances in hypertensive obese patients with and without obstructive sleep apnea (OSA). Methods: This is an open, cohort, prospective study. Out of 493 screened patients, we selected 279 hypertensive, obese individuals without severe concomitant diseases: 75 patients without sleep-disordered breathing (non-SDB group), and 204 patients with OSA (OSA group). At baseline, all patients underwent examination, including ECG, Holter ECG monitoring, and sleep study...
September 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29134982/electrocardiographic-and-blood-pressure-measurements-in-captive-african-lions-panthera-leo-immobilized-with-xylazine-ketamine-combination
#7
T O Omóbòwálé, P I Otuh, O A Adejumobi, J O Abiola, T Adebiyi, B N Ogunro, A O Adeogun
Electrocardiographic and blood pressure measurements are extremely valuable diagnostic tools in the evaluationof the cardiovascular system of living animals. In this study, 6-lead electrocardiograms were recorded from five male captiveAfrican lions (Panthera leo). Also, blood pressure measurements were recorded and compared from three different sites;fore limb, hind limb and the tail, were recorded. Immobilization was done with a combination of Ketamine Hydrochloride(10mg/kg) and Xylazine (3mg/kg). Measurements were recorded as mean ± standard deviation...
June 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29129560/the-role-of-holter-monitoring-in-the-diagnosis-of-early-repolarisation-pattern
#8
Cheng-Cheng Ji, Xu-Miao Chen, Yun-Jiu Cheng, Li-Juan Liu, Kai Tang, Wei-Qi Zhu, Ying Huang, Wei-Ying Chen, Wei-Ying Chen, Su-Hua Wu
BACKGROUND: A slower heart rate can exaggerate J-point elevation in a 12-lead ECG. This study examined the role of Holter monitoring in the diagnosis of early repolarisation pattern (ERP). METHODS: We examined 24-hour Holter recordings of 4000 consecutive patients seen at an outpatient clinic, and found 500 patients (12.5%) with ERP (based on J-point elevation magnitude maximum value≥0.1mV on the Holter recording). The highest magnitude of J-point elevation, R wave amplitude, the ratio between J-point elevation magnitude and R-wave amplitude on the same ECG lead (J/R ratio), QRS interval, and QT/QTc interval were measured on the Holter recording and on a surface 12-lead ECG of the 500 patients with ERP...
October 20, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29129350/evaluation-of-ecg-algorithms-designed-to-improve-detect-of-transient-myocardial-ischemia-to-minimize-false-alarms-in-patients-with-suspected-acute-coronary-syndrome
#9
Michele M Pelter, Yuan Xu, Richard Fidler, Ran Xiao, David W Mortara, Hu Xiao
BACKGROUND: Patients hospitalized for suspected acute coronary syndrome (ACS) are at risk for transient myocardial ischemia. During the "rule-out" phase, continuous ECG ST-segment monitoring can identify transient myocardial ischemia, even when asymptomatic. However, current ST-segment monitoring software is vastly underutilized due to false positive alarms, with resultant alarm fatigue. Current ST algorithms may contribute to alarm fatigue because; (1) they are not designed with a delay (minutes), rather alarm to brief spikes (i...
October 24, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29127856/acute-and-long-term-effects-of-fingolimod-on-heart-rhythm-and-heart-rate-variability-in-patients-with-multiple-sclerosis
#10
Ruken Özge Akbulak, Sina C Rosenkranz, Benjamin N Schaeffer, Hans O Pinnschmidt, Stephan Willems, Christoph Heesen, Boris A Hoffmann
BACKGROUND: Fingolimod can lead to increased risk of cardiac events such as bradycardia or atrioventricular (AV) block. OBJECTIVE: Evaluate acute and long-term effects of fingolimod on heart rhythm (HR), heart rate variability (HRV) and development of AV-blocks. METHODS: In 64 patients with relapsing-remitting multiple sclerosis Holter ECG monitoring (HEM) and HRV analysis were performed 24h before, six h during and 72h after initiation of fingolimod...
November 2, 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29122526/extracorporeal-myocardial-shockwave-therapy-a-precious-blast-for-refractory-angina-patients
#11
Massimo Slavich, Giuseppe Pizzetti, Anna Maria Vella, Claudia Carlucci, Davide Margonato, Roberto Spoladore, Gabriele Fragasso, Alberto Margonato
INTRODUCTION: Refractory Angina Pectoris (RAP) dramatically affects patients' life quality and medical costs. External Shockwave Myocardial Revascularization (ESMR) improves the cardiac blood flow thanks to its pro-angiogenetic action on ischaemic tissues. We hereby describe our experience of ESMR in RAP patients. MATERIALS AND METHODS: This is a retrospective study encompassing all patients referred to OSR for RAP treatment. Efficacy of ESMR was assessed considering the difference between pre and post therapy data in SAQ score and CCS, stress test performance, 24h ECG monitoring, NT-proBNP and echocardiographic measures...
October 3, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29119744/cardiac-monitoring-and-the-use-of-a-systematic-approach-in-interpreting-electrocardiogram-rhythms
#12
Richard Hatchett
Attaching a patient to a cardiac monitor and obtaining a clear electrocardiogram (ECG) trace may now be considered basic nursing skills. In line with the UK professional standards and code of conduct, healthcare practitioners are required to practise effectively and preserve patients' safety. Therefore, healthcare practitioners undertaking cardiac monitoring are required to have a basic understanding of normal sinus rhythms and some of the common types of cardiac arrhythmia. This will enable prompt recognition of early warning signs of potential and actual clinical conditions, and the timely initiation of treatment...
November 8, 2017: Nursing Standard
https://www.readbyqxmd.com/read/29114227/non-linear-heart-rate-and-blood-pressure-interaction-in-response-to-lower-body-negative-pressure
#13
Ajay K Verma, Da Xu, Amanmeet Garg, Anita T Cote, Nandu Goswami, Andrew P Blaber, Kouhyar Tavakolian
Early detection of hemorrhage remains an open problem. In this regard, blood pressure has been an ineffective measure of blood loss due to numerous compensatory mechanisms sustaining arterial blood pressure homeostasis. Here, we investigate the feasibility of causality detection in the heart rate and blood pressure interaction, a closed-loop control system, for early detection of hemorrhage. The hemorrhage was simulated via graded lower-body negative pressure (LBNP) from 0 to -40 mmHg. The research hypothesis was that a significant elevation of causal control in the direction of blood pressure to heart rate (i...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29110996/atrial-ectopy-as-a-mediator-of-the-association-between-race-and-atrial-fibrillation
#14
Matthew A Christensen, Kaylin T Nguyen, Phyllis K Stein, Raymond B Fohtung, Elsayed Z Soliman, Thomas A Dewland, Eric Vittinghoff, Bruce M Psaty, Susan R Heckbert, Gregory M Marcus
BACKGROUND: Blacks have a lower risk of atrial fibrillation (AF) despite having more AF risk factors, but the mechanism remains unknown. Premature atrial contraction (PAC) burden is a recently identified risk factor for AF. OBJECTIVE: The purpose of this study was to determine whether the burden of PACs explains racial differences in AF risk. METHODS: PAC burden (number per hour) was assessed by 24-hour ambulatory electrocardiographic (ECG) monitoring in a randomly selected subset of patients in the Cardiovascular Health Study...
October 23, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29110883/linear-and-nonlinear-parameters-of-heart-rate-variability-in-ischemic-stroke-patients
#15
V Constantinescu, D Matei, V Costache, D Cuciureanu, C Arsenescu-Georgescu
INTRODUCTION: Cardiovascular system presents cortical modulation. Post-stroke outcome can be highly influenced by autonomic nervous system disruption. Heart rate variability (HRV) analysis is a simple non-invasive method to assess sympatho-vagal balance. OBJECTIVES: The purpose of this study was to investigate cardiac autonomic activity in ischemic stroke patients and to asses HRV nonlinear parameters beside linear ones. METHODS: We analyzed HRV parameters in 15 right and 15 left middle cerebral artery ischemic stroke patients, in rest condition and during challenge (standing and deep breathing)...
October 11, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29092858/chronic-maternal-hypercortisolemia-in-late-gestation-alters-fetal-cardiac-function-at-birth
#16
Andrew Antolic, Charles E Wood, Maureen Keller-Wood
Studies in our laboratory have shown that modest chronic increases in maternal cortisol concentrations over the last 0.20 of gestation impair maternal glucose metabolism and increase the incidence of perinatal stillbirth. Previous studies had found an increase in maternal cortisol concentrations from 115 to 130d gestation in sheep increased both proliferation in fetal cardiomyocytes and apoptosis in the fetal cardiac Purkinje Fibers. We hypothesized that the adverse effects of excess cortisol may result in defects in cardiac conduction during labor and delivery...
November 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29082335/atrial-fibrillation-trial-to-evaluate-real-world-procedures-for-their-utility-in-helping-to-lower-stroke-events-after-pulse-study-protocol-for-a-randomized-controlled-trial
#17
Tsung-Ta Hsieh, Meng Lee, Wen-Yi Huang, Sung-Chun Tang, Sheng-Feng Sung, Kuo-Husan Chang, Jiann-Der Lee, Tsong-Hai Lee, Yung-Sung Huang, Jiann-Shing Jeng, Chang-Min Chung, Yi-Ling Wu, Bruce Ovbiagele
BACKGROUND: Enhancing detection of undiagnosed atrial fibrillation (AF) in hospitalized patients with a recent ischemic stroke is important because of the treatment implications; especially since presence of paroxysmal AF may not be picked up in a single 12-lead electrocardiogram (ECG) test. While several trials have shown improved detection of AF with prolonged ECG monitoring, this strategy is associated with relatively high cost, labor intensity, and patient inconvenience, thereby making it challenging to routinely implement in all hospitals...
June 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29079632/an-abnormal-structure-of-the-left-ventricle
#18
Yu Kang, Zheng Li, Ben He
CLINICAL INTRODUCTION: A 36-year-old man was referred for evaluation of an abnormal left ventricular (LV) structure found incidentally on transthoracic echocardiography (TTE) (figure 1). He had no symptoms except for mild palpitations. There was no significant medical history. Physical examination was unremarkable. ECG showed regular sinus rhythm with ST changes in lead II, III, avF and V6 (see online supplementary file 1). Cardiac magnetic resonance (CMR) (figure 1C) was performed. Treadmill exercise test did not demonstrate any electrocardiographic ischaemic changes...
October 27, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29073767/arterial-stiffness-is-associated-with-qtc-interval-prolongation-in-patients-with-heart-failure
#19
Salah Al-Zaiti, Samir Saba, Rodolfo Pike, Jennifer Williams, Fadi Khraim
BACKGROUND: A prolonged corrected QT (QTc) interval is a known risk factor for adverse cardiac events. Understanding the determinants and physiologic correlates of QTc is necessary for selecting proper strategies to reduce the risk of adverse events in high-risk patients. We sought to evaluate the role of arterial stiffness in heart failure as a determinant of QTc prolongation. METHOD: This was an observational study that recruited ambulatory heart failure patients (New York Heart Association Classes I-II) from an outpatient heart failure clinic...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/29072993/tilted-ecg-an-unusual-tilt-test-response
#20
Anunay Gupta, Neeraj Parakh, Rajnish Juneja
Tilt testing is a commonly used diagnostic tool to evaluate syncope of undetermined etiology. We hereby describe a twelve year old male child who developed presyncope during provocative head up tilt testing along with ST segment elevation in cardiac monitor during presyncope. Patient underwent repeat head up tilt testing along with holter monitoring which showed a left bundle branch block escape rhythm. Hence development of ST elevation was due to the improper filter application in single lead ECG monitor. This case highlights the importance of filters in electrocardiographic monitoring...
March 2017: Indian Pacing and Electrophysiology Journal
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