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排序方式: 共有3927条查询结果,搜索用时 15 毫秒
71.
Eberhard P. Scholz Patrick Fischer Patrick Lugenbiel Panagiotis Xynogalos Patrick A. Schweizer Daniel Scherer Dierk Thomas Hugo A. Katus Edgar Zitron 《Journal of interventional cardiac electrophysiology》2018,53(3):347-355
Purpose
Left bundle branch block (LBBB) has a predictive value for response to cardiac resynchronization therapy as reported by Zareba et al. (Circulation 123(10):1061–1072, 2011). However, based on ECG criteria, the discrimination between complete LBBB and nonspecific intraventricular conduction delay is challenging. We tested the hypothesis that discrimination can be performed using standard electrophysiological catheters and a simple stimulation protocol.Methods
Fifty-nine patients were analyzed retrospectively. Patients were divided into groups of narrow QRS (n?=?20), wide QRS of right bundle branch block (RBBB) morphology (n?=?14), and wide QRS of LBBB morphology (n?=?25). Using a diagnostic catheter placed in the coronary sinus, left ventricular activation was assessed during intrinsic conduction as well as during right ventricular (RV) stimulation.Results
In patients with narrow QRS and RBBB, the Q-LV/QRS ratio was 0.43?±?0.013 (n?=?20) and 0.41?±?0.026 (n?=?14), respectively. In patients with LBBB morphology, the Q-LV/QRS split up into a group of patients with normal (0.43?±?0.022, n?=?7) and a group with delayed left ventricular activation (0.75?±?0.016, n?=?18). By direct comparison of the Q-LV/QRS ratio during intrinsic conduction with the Q-LV/QRS ratio during RV pacing leading to a functional LBBB, a clear distinction between a group of “true LBBB” and another group of “apparent LBBB”/nonspecific intraventricular conduction delay (NICD) could be generated.Conclusions
We present a novel and practical method that might facilitate discrimination between patients with apparent LBBB and true LBBB by comparing Q-LV/QRS ratios during intrinsic activation and during RV stimulation. Although this method can already be directly applied, validation by 3D electrical mapping and prospective correlation to cardiac resynchronization therapy (CRT) response will be required for further translation into clinical practice.72.
Chakrabarti S Avivi I Mackinnon S Ward K Kottaridis PD Osman H Waldmann H Hale G Fegan CD Yong K Goldstone AH Linch DC Milligan DW 《British journal of haematology》2002,119(4):1125-1132
Respiratory virus infections can cause serious morbidity and mortality after conventional allogeneic stem cell transplantation. However, the incidence and outcome of these infections after reduced intensity conditioning has not been reported. Between 1997 and 2001, 35 episodes of respiratory virus infections were noted in 25 of 83 transplant recipients conditioned with fludarabine, melphalan and Campath-1H, and 80% of them received early antiviral therapy. Parainfluenza virus (PIV) 3 was the commonest isolate (45.7%) followed by respiratory syncytial virus (37%). Patients with myeloma were more susceptible to these infections [odds ratio (OR) 4.1, P = 0.01] which were often recurrent in patients with severe acute or chronic graft-versus-host disease (GVHD) (OR 10.6, P = 0.03). Infection within the first 100 d (OR 5.0, P = 0.05) and PIV 3 (OR 9.2, P = 0.01) isolation were risk factors for developing lower respiratory infection. Although more than half of the episodes progressed to lower respiratory infection, the mortality was only 8%. This could have been due to early initiation of antiviral therapy, but the attenuation of pulmonary damage due to the reduced-intensity conditioning, low incidence of GVHD and, paradoxically, the low CD4+ T-cell subset in this setting might also have been contributory factors. 相似文献
73.
Ioannis Liampas MD MSc Konstantinos S. Mylonas MD PhD PDCP Alexandros Brotis MD PhD Panagiotis Dervenis MD MSc Vasileios Siokas MD PhD Alexios-Fotios A. Mentis MD MPH PgCert Metaxia Dastamani MD MSc Athina-Maria Aloizou MD Zisis Tsouris MD MSc Paraskevi Aslanidou BSc MSc Christos Bakoyiannis MD PhD Efthimios Dardiotis MD PhD 《Headache》2021,61(1):44-59
74.
Maria Sokratous MD Marianthi Breza MD MSc Konstantin Senkevich MD PhD Ziv Gan-Or MD PhD Stefania Kalampokini MD MSc PhD Cleanthi Spanaki MD PhD Antonios Provatas MD PhD Zane Zaunmuktane PhD Varvara Valotassiou MD PhD Panagiotis Georgoulias MD PhD Stephanie Efthymiou Georgios M. Hadjigeorgiou MD PhD Henry Houlden MD PhD Georgia Xiromerisiou MD PhD 《Movement disorders》2021,36(9):2209-2212
75.
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77.
Panagiotis Korovessis 《European spine journal》2015,24(7):1368-1369
78.
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80.
Gregory Polyzois Panagiotis Lagouvardos Josip Kranjcic Denis Vojvodic 《Acta stomatologica Croatica》2015,49(4):316-324