Results 31 to 40 of about 52,622 (253)

Agenesia de cava superior associada a bloqueio atrioventricular de 3º grau Agenesis of the right superior vena cava associated with total heart block

Brazilian Journal of Cardiovascular Surgery, 2008
A persistência de veia cava superior esquerda com ausência da veia cava superior é uma anomalia rara, principalmente quando associada a bloqueio atrioventricular de 3º grau.
Gustavo J. Ventura Couto, Roberto Santos Saraiva, Alexandre de Oliveira Deslandes, Paulo César de Souza Santos   +3 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

One‐Step Preparation of Lanthanide‐Doped Polyurea Multicolor Microspheres for Versatile Fluorescent Applications

Advanced Science, EarlyView.
Lanthanide‐doped polyurea microspheres are prepared via a facile one‐step precipitation polymerization. They exhibit strong hydrogen‐bonding and coordination interactions with excellent properties, including multicolor emission, high quantum yield (75.3%), remarkable stability, redispersibility, and biocompatibility.
Guiyu Zhang, Xiaoxia Yu, Xinhui Wang, Xiang Zheng Kong, Xiangling Gu, Jitao Liu, Shusheng Li, Xiaoli Zhu, Lianbao Cao, Xubao Jiang   +9 more
wiley   +1 more source

Strategy of pacemaker and electrode replacement for superior vena cava stenosis

Journal of International Medical Research, 2021
Cardiac implantable devices are commonly used for superior vena cava stenosis, but there have been few reports of electrode replacement in the stenosed superior vena cava.
Zhi-Peng Zheng, Wei Zhang, Zhi-huan Zeng, Jian-yi Zheng   +3 more
doaj   +1 more source

Case Report: Pericardial Tamponade and Hemothorax After Superior Vena Cava Filter Removal

Frontiers in Cardiovascular Medicine, 2022
A 67-year-old male patient was admitted to receive surgical treatment because of lumbar spinal stenosis. Ultrasonography showed a thrombus in the middle and lower segment of the left internal jugular vein.
Xueping Zeng, Jin Zhou, Qidi Zhou, Zhigang Huang   +3 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Optimized Lipid Nanoparticles with Tail‐Modified Ionizable Lipids for Safer mRNA Delivery

Advanced Science, EarlyView.
Systematic engineering of hydrophobic tail architecture in vitamin B5‐derived ionizable lipids establishes a comprehensive structure–activity relationship framework for mRNA delivery. Combined lipidtail and formulation optimization identifies TM1‐OPT3‐C, a lipid nanoparticle platform that improves efficacy–safety balance through efficient mRNA delivery,
Seo‐Hyeon Bae, Jisun Lee, Jae‐Hun Ahn, Hosam Choi, Huijeong Choi, Jungmin Kim, Minho Kang, Ho Rim Oh, So Hyun Park, Eun Young Oh, Sanghyuk Jeon, Yeeun Lee, Yu‐Sun Lee, Na‐Young Lee, Hee‐Jin Bae, Jina Kwak, Jooil Kim, Nakyung Lee, Beomsun Kang, Ji‐Hye Kim, Eunsaem Song, Daesub Song, Hyunho Yoon, Sang‐Myeong Lee, Hyewon Youn, Kiyoun Lee, Byeong‐Cheol Kang, Jae‐Hwan Nam   +27 more
wiley   +1 more source

Ausencia de la vena cava superior derecha y persistencia de la vena cava superior izquierda en el feto: Presentación de dos casos.

Revista Cubana de Cardiología y Cirugía Cardiovascular, 2011
Objetivo: La Vena Cava Superior Izquierda Persistente es la anomalía vascular congénita más frecuente. En la gran mayoría de las ocasiones la persistencia de la misma coincide con la presencia de la vena cava superior derecha.
Yamelic Bernal, Carlos García Guevara, Elsa Fleitas Ruisanchez, Pablo Marantz, Carlos García Morejón, Andrés Savío Benavides   +5 more
doaj  

Blood Cell‐Camouflaged Liquid Metal Nanoconjugates Orchestrate Treg Depletion and STING‐Amplified Photothermal Immunity for Metastatic Triple‐Negative Breast Cancer Therapy

Advanced Science, EarlyView.
Whole‐blood biomimetic engineering transforms liquid metal nanoparticles into a tripartite immunotherapeutic platform that orchestrates regulatory T‐cell depletion, photothermal‐induced immunogenic cell death, and activation of the stimulator of interferon genes pathway.
Nina Sang, Eijiro Miyako
wiley   +1 more source

Congenital Absence of Superior Vena Cava with no Manifestation of Superior Vena Cava Syndrome [PDF]

Korean Circulation Journal, 2016
Total absence of superior vena cava (SVC) is a very rare anomaly, and the patient usually suffers from SVC syndrome or conduction disturbances. We report an asymptomatic 27 year-old male, with complete absence of SVC. Transthoracic echocardiography and computed tomography demonstrated the absence of SVC and other congenital cardiac anomalies, but the ...
Park, Chan Soon, Kim, Jeong Jae, Park, Jin Joo   +2 more
openaire   +2 more sources