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Extrasystole

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1. Prevalence and Temporal Distribution of Extrasystoles in Septic ICU Patients: The Feasibility of Predicting Fluid Responsiveness Using Extrasystoles (PubMed)

Prevalence and Temporal Distribution of Extrasystoles in Septic ICU Patients: The Feasibility of Predicting Fluid Responsiveness Using Extrasystoles Extrasystoles may be useful for predicting the response to fluid therapy in hemodynamically unstable patients but their prevalence is unknown. The aim of this study was to estimate the availability of extrasystoles in intensive care unit patients diagnosed with sepsis. The study aim was not to validate the fluid responsiveness prediction ability (...) of extrasystoles.Twenty-four-hour ECG recordings from a convenience sample of 50 patients diagnosed with sepsis were extracted from the MIMIC-II waveform database, and ECGs were visually examined for correct QRS complex detection. Custom-made algorithms identified potential extrasystoles based on RR intervals. Two raters visually confirmed or rejected the potential extrasystoles and then classified them as ventricular, supraventricular, or unknown origin. Extrasystole availability was calculated as extrasystolic

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2018 Critical care research and practice

2. Post-extrasystolic Blood Pressure Potentiation as a Risk Predictor in Cardiac Patients (PubMed)

Post-extrasystolic Blood Pressure Potentiation as a Risk Predictor in Cardiac Patients For more than 100 years physicians have observed that heartbeats following extrasystolic beats are characterised by augmented myocardial contractility. This phenomenon was termed post-extrasystolic potentiation (PESP). In the 1970s it was first noted that PESP measured at the blood pressure level is typically pronounced in heart failure patients. Only recently, it was shown that PESP measured non-invasively (...) as post-extrasystolic blood pressure potentiation was a strong and independent predictor of death in survivors of myocardial infarction and in patients with chronic heart failure. A similar parameter (PESPAfib) can be also assessed in patients with atrial fibrillation. PESP and PESPAfib can be understood as non-invasive parameters that indicate myocardial dysfunction. They have the potential to improve risk stratification strategies for cardiac patients.

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2016 Arrhythmia & electrophysiology review

3. Post-extrasystolic Potentiation: Link between Ca2+ Homeostasis and Heart Failure? (PubMed)

Post-extrasystolic Potentiation: Link between Ca2+ Homeostasis and Heart Failure? Post-extrasystolic potentiation (PESP) describes the phenomenon of increased contractility of the beat following an extrasystole and has been attributed to changes in Ca(2+) homeostasis. While this effect has long been regarded to be a normal physiological phenomenon, a number of reports describe an enhanced potentiation of the post-extrasystolic beat in heart failure patients. The exact mechanism

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2016 Arrhythmia & electrophysiology review

4. Quantification of the Arrhythmogenic Effects of Spontaneous Atrial Extrasystole Using High-Resolution Epicardial Mapping. (PubMed)

Quantification of the Arrhythmogenic Effects of Spontaneous Atrial Extrasystole Using High-Resolution Epicardial Mapping. Atrial extrasystoles (AES) can initiate atrial fibrillation. However, the impact of spontaneous AES on intra-atrial conduction is unknown. The aims of this study were to examine conduction disorders provoked by AES and to correlate these conduction differences with patient characteristics, mapping locations, and type of AES.High-resolution epicardial mapping (electrodes N

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2018 Circulation. Arrhythmia and electrophysiology

5. Post-Extrasystolic Potentiation as a Predictor of Ventricular Arrhythmias

Post-Extrasystolic Potentiation as a Predictor of Ventricular Arrhythmias Post-Extrasystolic Potentiation as a Predictor of Ventricular Arrhythmias - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Post (...) -Extrasystolic Potentiation as a Predictor of Ventricular Arrhythmias (A PRIORY) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. of clinical studies and talk to your health care provider before participating. Read our for details. ClinicalTrials.gov Identifier: NCT03631303 Recruitment Status : Recruiting First Posted : August 15, 2018 Last Update Posted : November

2018 Clinical Trials

6. Extrasystoles for fluid responsiveness prediction in critically ill patients (PubMed)

Extrasystoles for fluid responsiveness prediction in critically ill patients Fluid responsiveness prediction with continuously available monitoring is an unsettled matter for the vast majority of critically ill patients, and development of new and reliable methods is desired. We hypothesized that the post-ectopic beat, which is associated with increased preload, could be analyzed in relation to preceding sinus beats and that the change in cardiac performance (e.g., systolic blood pressure (...) ) at the post-ectopic beat could predict fluid responsiveness.Critically ill patients were observed when scheduled for a 500-ml volume expansion. The 30-min ECG prior to volume expansion was analyzed for the occurrence of extrasystoles. Classification variables were defined as the change in a variable (e.g., systolic blood pressure or pre-ejection period) from the median of ten preceding sinus beats to extrasystolic post-ectopic beat. A stroke volume increase > 10% following volume expansion defined fluid

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2018 Journal of intensive care

7. Ablation of parahisian premature ventricular extrasystoles by subtricuspid retrograde approach using inverted catheter technique: back to the anatomy (PubMed)

Ablation of parahisian premature ventricular extrasystoles by subtricuspid retrograde approach using inverted catheter technique: back to the anatomy This report illustrates a feasible and anatomical solution aiming to improve the success and decrease the possible hazards such as atrioventricular block during ablation of parahisian PVCs. We tried to illustrate the specific anatomy pertaining parahisian region and to explain a retrograde subvalvular catheter technique to overcome

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2018 Clinical Case Reports

8. Hemodynamic consequences of premature ventricular contractions Association of mechanical bradycardia and post-extrasystolic potentiation with premature ventricular contraction-induced cardiomyopathy. (PubMed)

Hemodynamic consequences of premature ventricular contractions Association of mechanical bradycardia and post-extrasystolic potentiation with premature ventricular contraction-induced cardiomyopathy. The relationships between hemodynamic consequences of premature ventricular contractions (PVCs) and development of premature ventricular contraction-induced cardiomyopathy (PVC-CM) have not been investigated.The purpose of this study was to correlate concealed mechanical bradycardia

2018 Heart Rhythm

9. [Catheter ablation of ventricular extrasystoles and ventricular tachycardia in the elderly].

[Catheter ablation of ventricular extrasystoles and ventricular tachycardia in the elderly]. The prevalence of structural heart disease increases with higher age, and thereby the basis for ventricular arrhythmias is created. Catheter ablation has been shown to be an effective therapy option that is very safe and achieves good long-term results in patients with recurrent ventricular tachycardia (VT). Data regarding ablation in patients older than 75 years is sparse, although this patient group

2017 Herzschrittmachertherapie & Elektrophysiologie

10. Supine Frequent Ventricular Extrasystoles in a Pregnant Woman without Structural Heart Disease (PubMed)

Supine Frequent Ventricular Extrasystoles in a Pregnant Woman without Structural Heart Disease Arrhythmias are the most common cardiac complication during gestational period and may occur in women with or without known structural heart disease. Premature extra beats and sustained tachyarrhythmias are the most common arrhythmias in pregnancy. Symptomatic episodes occur in 20-44% of pregnant women, usually as palpitations, dizziness, or syncope. We searched on Pubmed for ventricular premature

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2016 Case reports in medicine

11. Absence of post-extrasystolic potentiation in takotsubo cardiomyopathy: Another piece of the puzzle? (PubMed)

Absence of post-extrasystolic potentiation in takotsubo cardiomyopathy: Another piece of the puzzle? Takotsubo cardiomyopathy (TCM) is an intriguing phenomenon characterized by transient and reversible left ventricular (LV) dysfunction despite angiographically unobstructed coronary arteries. The detailed pathophysiology of stunned, viable myocardium in TCM remains to be determined. Post-extrasystolic potentiation (PESP), the phenomenon of enhanced LV contractility following extrasystole, has (...) been used to assess myocardial viability.Utilizing a local database, we identified 74 cases that met the modified Mayo Clinic criteria for TCM between October 2004 and March 2016. The patients undergoing left ventriculography were assessed for the presence of fortuitously provoked extrasystoles and the presence or absence of PESP.The baseline characteristics of TCM were 93.2% female patients with median age of 69 and majority cases were apical type (77%). In-hospital mortality was observed in 3

2016 International journal of cardiology

12. Extrasystole

Extrasystole Extrasystole Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Extrasystole Extrasystole Aka: Extrasystole From Related (...) Chapters II. Types (PAC) (PJC) (PVC) III. Definition Ectopic impulse overlies normal sinus rhythm Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Extrasystole." Click on the image (or right click) to open the source website in a new browser window. Related Studies (from Trip Database) Ontology: Premature Cardiac Complex (C0340464) Definition (MSHCZE) Skupina srdečních arytmií, v nichž nejsou srdeční stahy iniciovány prostřednictvím

2018 FP Notebook

13. Acute Glomerulonephritis Associated with Pyelonephritis, Bundle Branch Block and Return Extrasystoles due to Ventricular Extrasystoles with Retrograde Conduction (PubMed)

Acute Glomerulonephritis Associated with Pyelonephritis, Bundle Branch Block and Return Extrasystoles due to Ventricular Extrasystoles with Retrograde Conduction 14834169 2004 02 15 2018 12 01 0035-9157 44 2 1951 Feb Proceedings of the Royal Society of Medicine Proc. R. Soc. Med. Acute glomerulonephritis associated with pyelonephritis, bundle branch block and return extrasystoles due to ventricular extrasystoles with retrograde conduction. 151-3 SCHOTT A A eng Journal Article England Proc R Soc

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1951 Proceedings of the Royal Society of Medicine

14. Cardiovascular Sounds Related to Extrasystoles: I. Two Cases of Sinus Extrasystoles with Bigeminy (PubMed)

Cardiovascular Sounds Related to Extrasystoles: I. Two Cases of Sinus Extrasystoles with Bigeminy 14328044 1996 12 01 2018 12 01 0008-4409 93 1965 Aug 07 Canadian Medical Association journal Can Med Assoc J CARDIOVASCULAR SOUNDS RELATED TO EXTRASYSTOLES: I. TWO CASES OF SINUS EXTRASYSTOLES WITH BIGEMINY. 268-71 SEGALL H N HN eng Journal Article Canada Can Med Assoc J 0414110 0008-4409 OM Arrhythmias, Cardiac Cardiac Complexes, Premature Cardiovascular System Electrocardiography Geriatrics Heart (...) Auscultation Humans ARRHYTHMIA ELECTROCARDIOGRAPHY EXTRASYSTOLE GERIATRICS HEART AUSCULTATION 1965 8 7 1965 8 7 0 1 1965 8 7 0 0 ppublish 14328044 PMC1928668 Am J Cardiol. 1962 May;9:804-9 13887378

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1965 Canadian Medical Association Journal

15. Usefulness of Frequent Supraventricular Extrasystoles and a High CHADS<sub>2</sub> Score to Predict First-Time Appearance of Atrial Fibrillation. (PubMed)

Usefulness of Frequent Supraventricular Extrasystoles and a High CHADS2 Score to Predict First-Time Appearance of Atrial Fibrillation. Frequent supraventricular extrasystoles (SVEs) are associated with the subsequent first-time appearance of atrial fibrillation (AF) and ischemic stroke. The aim of this study was to investigate the combined role of SVEs and an AF-related risk score for ischemic stroke, the CHADS2 score, on the occurrence of new AF in patients in sinus rhythm

2013 American Journal of Cardiology

16. Extrasystole

Extrasystole Extrasystole Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Extrasystole Extrasystole Aka: Extrasystole From Related (...) Chapters II. Types (PAC) (PJC) (PVC) III. Definition Ectopic impulse overlies normal sinus rhythm Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Extrasystole." Click on the image (or right click) to open the source website in a new browser window. Related Studies (from Trip Database) Ontology: Premature Cardiac Complex (C0340464) Definition (MSHCZE) Skupina srdečních arytmií, v nichž nejsou srdeční stahy iniciovány prostřednictvím

2015 FP Notebook

17. Sustained polymorphic ventricular tachycardia induced during radiofrequency catheter ablation of idiopathic right ventricular outflow tract extrasystoles (PubMed)

Sustained polymorphic ventricular tachycardia induced during radiofrequency catheter ablation of idiopathic right ventricular outflow tract extrasystoles 21468250 2011 07 14 2018 11 13 0972-6292 11 2 2011 Mar 25 Indian pacing and electrophysiology journal Indian Pacing Electrophysiol J Sustained polymorphic ventricular tachycardia induced during radiofrequency catheter ablation of idiopathic right ventricular outflow tract extrasystoles. 56-8 Letsas Konstantinos P KP Second Department (...) of Cardiology, Division of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece. Efremidis Michael M Bramos Dimitrios D Charalampous Charis C Tsikrikas Spyros S Skoufogianni Paraskevi P Sideris Antonios A eng Journal Article 2011 03 25 Netherlands Indian Pacing Electrophysiol J 101157207 0972-6292 polymorphic ventricular tachycardia radiofrequency catheter ablation right ventricular outflow tract extrasystole 2011 4 7 6 0 2011 4 7 6 0 2011 4 7 6 1 epublish 21468250

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2011 Indian pacing and electrophysiology journal

18. Electrocardiographic and Electrophysiologic Characteristics of Ventricular Extrasystoles Arising from the Aortomitral Continuity (PubMed)

Electrocardiographic and Electrophysiologic Characteristics of Ventricular Extrasystoles Arising from the Aortomitral Continuity Left ventricular outflow tract arrhythmias originating from the aortomitral continuity, the left coronary cusp, the superior basal septum, and the epicardial left ventricular summit display common electrocardiographic and electrophysiological features, probably due to the close proximity of those locations. Catheter ablation of these arrhythmias can be challenging (...) . The case of a 68-year-old male with frequent premature ventricular extrasystoles arising from the aortomitral continuity of the basal left ventricle is described. The electrocardiographic and electrophysiologic characteristics of this arrhythmia are discussed.

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2011 Cardiology research and practice

19. Predicting fluid responsiveness with stroke volume variation despite multiple extrasystoles. (PubMed)

Predicting fluid responsiveness with stroke volume variation despite multiple extrasystoles. To investigate the ability of a new stroke volume variation algorithm to predict fluid responsiveness during general anesthesia and mechanical ventilation in animals with multiple extrasystoles.Prospective laboratory animal experiment.Investigational laboratory.Eight instrumented pigs.Eight anesthetized and mechanically ventilated pigs were monitored with an arterial line and a pulmonary artery catheter (...) . Multiple extrasystoles were induced by right ventricular pacing (25% of heart beats). Arterial pressure waveforms were recorded and stroke volume variation was computed from the new and from the standard algorithm. The new stroke volume variation algorithm is designed to restore the respiratory component of the arterial pressure waveform despite multiple ectopic heart beats. Cardiac output was measured before and after 56 fluid boluses (7 mL/kg of 6% hydroxy ethyl starch) performed at different volemic

2011 Critical Care Medicine

20. 'Incessant' tachycardias in Wolff-Parkinson-White syndrome. I: Initiation without antecedent extrasystoles or PR lengthening, with reference to reciprocation after shortening of cycle length. (PubMed)

'Incessant' tachycardias in Wolff-Parkinson-White syndrome. I: Initiation without antecedent extrasystoles or PR lengthening, with reference to reciprocation after shortening of cycle length. In 6 patients with the Wolff-Parkinson-White (WPW) syndrome, repetitive, almost continuous (incessant) reciprocating atrioventricular (AV) tachycardia has been shown to arise when the sinus cycle length was shortened to a critical point, at which unidirectional block occurred without the classical feature

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1976 British Heart Journal

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