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Zhongshan Hospital, Fudan University

3 ARTICLES PUBLISHED IN JoVE

Biology

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Jingfeng Wang^*1, Zhenning Nie^*1, Haiyan Chen^*2, Xianhong Shu², Zhaohua Yang³, Ruiming Yao¹, Yangang Su¹, Junbo Ge¹

¹Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, ²Department of Echocardiography, Shanghai Institute of Medical imaging, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, ³Department of Cardiac surgery, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University

The establishment of a chronic asynchronous heart failure (HF) model by rapid pacing combined with left bundle branch ablation is presented. Two-dimensional speckle tracking imaging and aortic velocity time integral are applied to validate this stable HF model with left ventricular asynchrony and the benefits of cardiac resynchronization therapy.

JoVE Core

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

Cecilia S.N. Cheung^1,2, Donald J. Weidner¹, Li Li¹, Philip G. Meredith³, Haiyan Chen¹, Matthew Whitaker¹, Xianyin Chen⁴

¹Mineral Physics Institute, Department of Geoscience, Stony Brook University, ²Geological Engineering, Department of Civil and Environmental Engineering, University of Wisconsin-Madison, ³Rock and Ice Physics Laboratory, Department of Earth Sciences, University College London, ⁴Department of Chemistry, Stony Brook University

We report detailed procedures for compression experiments on rocks and mineral aggregates within a multi-anvil deformation apparatus coupled with synchrotron X-radiation. Such experiments allow quantification of the stress distribution within samples, that ultimately sheds light on compaction processes in geomaterials.

Medicine

Percutaneous Endoscopic Unilateral-Approach Bilateral Decompression for Lumbar Spinal Stenosis

Ye Jiang^*1, Chen Li^*2, Lu-tao Yuan^*1, Cong Luo^*1, Shao-shuai Wu^*1, Yu-hang Mao¹, Fulin Xu¹, Yong Yu²

¹Department of Neurosurgery, Minhang Hospital, Fudan University, ²Department of Neurosurgery, Zhongshan Hospital, Fudan University

The present protocol describes the steps and key points of lumbar endoscopic unilateral laminotomy for bilateral decompression for the treatment of degenerative lumbar spinal stenosis.