Results 81 to 90 of about 144 (143)
ESC Heart Failure, Volume 12, Issue 3, Page 2371-2376, June 2025.
Ying Wang +7 more
wiley +1 more source
Clinical and Translational Science, Volume 18, Issue 6, June 2025.Large‐scale analysis establishes age‐ and sex‐specific QTc/JTc reference ranges, quantifying their distinct impacts in controls and moxifloxacin‐treated cases. ABSTRACT The corrected QT (QTc) interval is a critical marker for assessing proarrhythmic potential in drug development, while the corrected JT (JTc) interval provides specific insight into ...
Eunwoo Kim +3 more
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Early‐life allergic sensitization and respiratory infection—Two hits on lung function?
Pediatric Allergy and Immunology, Volume 36, Issue 6, June 2025.Abstract Background Allergic sensitization and respiratory infections commonly occur in childhood. Interplay between them in asthma development is known as the ‘two‐hit’ hypothesis. There has been no previous investigation of this hypothesis on adult lung function.
Vikas Wadhwa +9 more
wiley +1 more source
ESC Heart Failure, Volume 12, Issue 3, Page 2377-2381, June 2025.
Golnaz Houshmand +2 more
wiley +1 more source
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Cardiac Electrophysiology Clinics, 2017
The ventricular conduction system starts below the His bundle, where it bifurcates into the right and left bundle branches that taper out to the subendocardial Purkinje network, which activates the ventricular myocardium. This system is responsible for the synchronized and almost simultaneous activation of both ventricles.
Roberto De Ponti +3 more
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The ventricular conduction system starts below the His bundle, where it bifurcates into the right and left bundle branches that taper out to the subendocardial Purkinje network, which activates the ventricular myocardium. This system is responsible for the synchronized and almost simultaneous activation of both ventricles.
Roberto De Ponti +3 more
openaire +3 more sources
Supraventricular Arrhythmia With Abnormal QRS Complex
Archives of Internal Medicine, 1972Thus far, the discussion of supraventricular arrhythmia with abnormal QRS complex has included preexisting conduction defects, the preexcitation syndrome (Wolff-Parkinson-White syndrome), and functional bundle-branch block due to sudden shortening of cycle length, often combined with prolongation of preceding cycle; the latter is popularly called the ...
Charles Fisch, Douglas P. Zipes
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IEEE Transactions on Biomedical Engineering, 2007
It is proposed to model the derivative of electrocardiogram (ECG) signal, which we refer to as dECG, instead of the ECG signal. It is shown that the QRS complex in the dECG signal can be represented in the frequency domain by an all-pole model of appropriate order, the coefficients of the model being determined using the covariance method of linear ...
Chandrakar, Kamath +2 more
openaire +3 more sources
It is proposed to model the derivative of electrocardiogram (ECG) signal, which we refer to as dECG, instead of the ECG signal. It is shown that the QRS complex in the dECG signal can be represented in the frequency domain by an all-pole model of appropriate order, the coefficients of the model being determined using the covariance method of linear ...
Chandrakar, Kamath +2 more
openaire +3 more sources
Wide QRS Complex Tachycardia [PDF]
AACN Advanced Critical Care, 1992 Electrocardiographic monitoring for dysrhythmias is a major responsibility of critical care nurses, and patients with wide QRS complex tachycardias present a challenge. Criteria for differentiating the impulse origin as ventricular or supraventricular are well documented: QRS duration, QRS morphology, QRS axis, and presence of atrioventricular ...
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Narrow QRS Complex Tachycardias
Mayo Clinic Proceedings, 1995Regular narrow QRS complex tachycardias are a common problem encountered by general internists or family practitioners. Although such tachycardias often occur in patients with a normal heart and seldom represent life-threatening conditions, they may cause bothersome symptoms.
Stephen J. Pieper, Marshall S. Stanton
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THE QRS COMPLEX OF THE ELECTROCARDIOGRAM
Archives of Internal Medicine, 1943The electrocardiogram is a photographic record of the differences in electrical potential existing between two points on the body surface at every instant during the time the record is being taken. On the ordinates of the record one reads the potential differences; on the abscissas the time is given.
Richard Ashman, Manuel Gardberg
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