Results 81 to 90 of about 405,391 (337)

Implantable Self‐Powered Systems for Electrical Stimulation Medical Devices

Advanced Science, EarlyView.
In this paper, the design strategy and clinical application of ISS are discussed in depth from four aspects: the design and optimization of the energy collection module, the selection and preparation of adaptive electrode materials, the innovation of system design strategy, and the biological effect of electrical stimulation of ISS.
Xi Cui, Li Wu, Chao Zhang, Zhou Li
wiley   +1 more source

Aneurysm of the left atrial appendage [PDF]

Clinical Cardiology, 1979
AbstractA 2‐year old asymptomatic girl is presented in whom the chest x‐ray film led to the discovery of a grossly distorted cardiac shadow. Angiocardiography showed a giant aneurysm originating from the left atrium. At operation an intrapericardial aneurysm of the left atrial appendage, measuring 12 × 4 × 4 cm, was found. It communicated with the left
Georges Stalpaert, Monique Dumoulin, L Van der Hauwaert, Willem Daenen   +3 more
openaire   +3 more sources

Dual‐Energy CT‐Based Assessment of Thrombotic Heterogeneity for Predicting Stroke Source and Response to Machine Thrombectomy: A Step Toward Visualization Thrombus Treatment

Advanced Science, EarlyView.
The research indicates that dual energy CT scanning can accurately predict the stroke source and clinical outcomes by analyzing thrombus heterogeneity. Based on histopathological analysis of thrombus components, these scans are better able to display thrombus details than standard CT scans, which is helpful for the development of visual navigation ...
Jingxuan Jiang, Sijia Wang, Fan Xiao, Hongmei Gu, Mingkang Wang, Hao Tian, Baohui Guan, Kai Sheng, Yijia Xiong, Huilin Zhao, Minda Li, Li Xu, Zheng Sun, Haiyan Du, Wenxian Du, Yuehua Li   +15 more
wiley   +1 more source

Investigating the relationship between the shape of the left atrial appendage and the incidence of atrial fibrillation in patients diagnosed with atrial fibrillation [PDF]

Journal of Cardio-Thoracic Medicine
Introduction: Appendage is the growth of the left atrium, which is different in terms of shape and size. This research aimed to investigate the relationship between the shape of the left atrium appendage and atrial fibrillation incidence.Methods: In a ...
Mehdi Moradi, Nakisa Khansari, Sorour Yari   +2 more
doaj   +1 more source

Anatomy of the shape of the cavity and the internal relief of the walls of the left atrial appendage

Учёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, 2022
Introduction. The evaluation of the shape of the left atrial appendage into interconnection with the internal relief of its wall is of an importance for discovering anatomical patterns of the left atrium, which appears to be the most thrombogenic and are
A. A. Gaponov, A. A. Iakimov
doaj   +1 more source

Non-vitamin K antagonist oral anticoagulants in atrial fibrillation accompanying mitral stenosis: the concept for a trial. [PDF]

, 2015
Patients at thromboembolic risk with non-valvular atrial fibrillation (AF) can now be managed either with a vitamin K antagonist (VKA) or with a fixed dose of a non-VKA oral anticoagulant (NOAC), while patients with valvular AF have been restricted to ...
De Caterina, R, John Camm, A
core   +1 more source

A Dual‐Modal Wearable Pulse Detection System Integrated with Deep Learning for High‐Accuracy and Low‐Power Sleep Apnea Monitoring

Advanced Science, EarlyView.
A dual‐modal wearable pulse detection system is developed for sleep apnea monitoring by integrating a self‐powered PENG and PPG sensor with a biomimetic fingertip structure. Through a two‐stage detection strategy, continuous PPW monitoring and on‐demand PPG detection achieve high‐accuracy sleep apnea recognition while maintaining low power consumption.
Jia Wang, Jiangtao Xue, Yang Zou, Yuxin Ma, Junhan Xu, Yanming Li, Fei Deng, Yiqian Wang, Kai Xing, Zhou Li, Tong Zou   +10 more
wiley   +1 more source

Giant left atrial appendage [PDF]

Netherlands Heart Journal, 2010
A 42-year-old man was evaluated at our hospital because of paroxysmal atrial fibrillation. Physical examination and ECG during sinus rhythm were unremarkable (no signs of left atrial enlargement).
Maarten-Jan M. Cramer, W Tietge, P Loh, R Uylings, G T Sieswerda, L C Otterspoor   +5 more
openaire   +3 more sources

Principal component analysis of atrial fibrillation: Inclusion of posterior ECG leads does not improve correlation with left atrial activity [PDF]

, 2015
Background Lead V? is routinely analysed due to its large amplitude AF waveform. V? correlates strongly with right atrial activity but only moderately with left atrial activity. Posterior lead V? correlates strongest with left atrial activity.
Bourke, John P., Langley, Philip, Lord, Stephen, Murray, Alan, Murray, Stephen, Raine, Daniel, Shepherd, Ewen   +6 more
core   +1 more source

Dual‐Band Electrochromic Smart Window for Dynamic Switching Between Radiative Cooling and Solar Heating

Advanced Science, EarlyView.
In this study, an electrochromic glass is designed by effectively integrating silver electrodeposition with mechanical flipping of the glass panel, enabling bidirectional dynamic regulation of the solar and mid‐infrared spectra. Its capability to dynamically switch between radiative cooling and solar heating modes offers substantial energy‐saving ...
Xinyu Zhao, Qixiang Chen, Fan Fan, Qiliang Wang, Yuehong Su, Minsu Liu, Fahua Zhu, Dongliang Zhao   +7 more
wiley   +1 more source