Results 91 to 100 of about 193,787 (386)

The link in Linking

Indian Pacing and Electrophysiology Journal, 2013
We present 2 cases of the slow-fast form of AVNRT with initially narrow QRS complexes followed by sudden unexpected transition to persistently wide QRS complexes due to aberrant intraventricular conduction.
Jane C. Caldwell, Pablo A. Chiale, Mario D. Gonzalez, Adrian Baranchuk   +3 more
doaj   +1 more source

Left ventricular hemodynamic forces as a marker of mechanical dyssynchrony in heart failure patients with left bundle branch block

Scientific Reports, 2017
Left bundle branch block (LBBB) causes left ventricular (LV) dyssynchrony which is often associated with heart failure. A significant proportion of heart failure patients do not demonstrate clinical improvement despite cardiac resynchronization therapy ...
J. Eriksson, Jakub Zając, U. Alehagen, A. Bolger, T. Ebbers, C. Carlhäll   +5 more
semanticscholar   +1 more source

Diminished Left Ventricular Dyssynchrony and Impact of Resynchronization in Failing Hearts With Right Versus Left Bundle Branch Block [PDF]

, 2007
ObjectivesWe compared mechanical dyssynchrony and the impact of cardiac resynchronization therapy (CRT) in failing hearts with a pure right (RBBB) versus left bundle branch block (LBBB).BackgroundCardiac resynchronization therapy is effective for ...
Berger, Ronald D., Byrne, Melissa J., Daya, Samantapudi, Halperin, Henry R., Helm, Robert H., Kass, David A., Lardo, Albert C., Osman, Nael F.   +7 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Unusual source of tachycardia in an adolescent [PDF]

, 2011
Mahaim fiber tachycardia is an uncommon cause of palpitations among the pediatric population. This case report describes an adolescent female who presented with recurrent episodes of tachycardia with chest pain and dizziness.
Brian T Kloss, EB Sternick, EB Sternick, Jennifer A Campoli, K Okishige, Karen Teelin, L Szumoski, M Haghjoo, M Haissaguerre, MA Silva, Marvin B Mata, N Morita, S Bohora   +12 more
core   +2 more sources

Solution‐Processable and Ambient‐Stable Highly Conductive p‐Type Polymers Derived from Dihydropyrazine and Ethylenedioxythiophene

Advanced Functional Materials, EarlyView.
This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon, Naixin Zhao, Yi Yuan, Yuning Li   +3 more
wiley   +1 more source

Left Bundle Branch Block–Induced Cardiomyopathy in a Transplanted Heart Treated With His Bundle Pacing

JACC: Case Reports, 2020
A 70-year-old male with prior orthotopic heart transplant developed left bundle branch block followed by new-onset left ventricular systolic dysfunction.
Kavita B. Khaira, MD, Rajeev Singh, MD, MBA, Subodh Devabhaktuni, MD, Joel W. Simon, MD, Gopi Dandamudi, MD, MBA   +4 more
doaj  

Left bundle branch block: from cardiac mechanics to clinical and diagnostic challenges.

Europace, 2017
Left bundle branch block (LBBB) results in an altered pattern of left ventricular (LV) activation and subsequent contraction, causing remarkable changes in LV mechanics, perfusion and workload and ultimately leading to pathologic cardiac remodelling ...
E. Surkova, L. Badano, R. Bellù, P. Aruta, F. Sambugaro, G. Romeo, F. Migliore, D. Muraru   +7 more
semanticscholar   +1 more source

Left bundle branch block: A continuously evolving concept [PDF]

, 1987
Eppinger and Rothberger in 1909 and 1910 first acknowledged the importance of the conduction system, yet a confusion of the pattern of left bundle branch block with right bundle branch block resulted which persisted for 25 years.
Flowers, Nancy C.
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source