Results 41 to 50 of about 110,622 (296)

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

Advanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Impact of a Right Ventricular Impedance Sensor on the Cardiovascular Responses to Exercise in Pacemaker Dependent Patients [PDF]

, 2005
Background. The evaluation of the heart rate (HR) response to exercise is important for the assessment of the rate response algorithm of sensor-controlled pacemakers.
Corey, Tomczak, Edward, Busse, John, Tsang, Linnea, Cook, Robert, Haennel, Tada, Hiroshi, Wladyslaw, Wojcik   +6 more
core  

Senile Systemic Amyloidosis: Clinical Features at Presentation and Outcome [PDF]

, 2013
Background Cardiac amyloidosis is a fatal disease whose prognosis and treatment rely on identification of the amyloid type. In our aging population transthyretin amyloidosis (ATTRwt) is common and must be differentiated from other amyloid types.
Banypersad, SM, Dungu, J, Gibbs, SD, Gilbertson, JA, Gillmore, JD, Hawkins, PN, Lachmann, HJ, McCarthy, CA, Petrie, A, Pinney, JH, Rowczenio, D, Sattianayagam, P, Venner, CP, Wassef, N, Wechalekar, A, Whelan, CJ   +15 more
core   +1 more source

Conformable Microelectrode Arrays Integrated with a Scoop‐Shaped Slide‐Well for Dynamic Electrophysiological Profiling of Patient‐Derived Cardiac Organoids

Advanced Science, EarlyView.
A flexible, ultrathin multi‐channel microelectrode array (MEA) conformally integrated onto a curved slide‐well enables stable electrical interfacing with 3D cardiac organoids. The geometry‐guided self‐alignment allows simultaneous recording of extracellular field potentials and contractile motion from irregular, beating tissues.
Ye Seul Kim, Jeonghwa Jeong, Gyeonghwa Heo, Young Woo Kwon, Jeongha Lee, Yoon Ji Jeong, Gyu Tae Park, Seongdo Jeong, Ki Won Hwang, Murim Choi, Jinhong Shin, Suck Won Hong, Jae Ho Kim   +12 more
wiley   +1 more source

Store-operated calcium entry and the localisation of STIM1 and Orai1 proteins in isolated mouse sinoatrial node cells

Frontiers in Physiology, 2015
In many nonexcitable and excitable cells, store-operated calcium entry (SOCE) represents an additional pathway for calcium entry upon Ca2+ store depletion.
Jie eLiu, Xin eLi, Victoria L Benson, David G Allen, Yue-Kun eJu   +4 more
doaj   +1 more source

The Total Artificial Heart and the Dilemma of Deactivation [PDF]

, 2016
It is widely believed to be permissible for a physician to discontinue any treatment upon the request of a competent patient. Many also believe it is never permissible for a physician to intentionally kill a patient.
Bronner, Ben
core   +1 more source

Remote Ischemic Preconditioning Neither Improves Survival nor Reduces Myocardial or Kidney Injury in Patients Undergoing Transcatheter Aortic Valve Implantation (TAVI) [PDF]

, 2020
BACKGROUND: Peri-interventional myocardial injury occurs frequently during transcatheter aortic valve implantation (TAVI). We assessed the effect of remote ischemic preconditioning (RIPC) on myocardial injury, acute kidney injury (AKIN) and 6-month ...
Flechsig, Mandy, Heidrich, Felix M., Heinzel, Frank R., Ibrahim, Karim, Linke, Axel, Pfluecke, Christian, Quick, Silvio, Ruf, Tobias F., Strasser, Ruth H., Sveric, Krunoslav M., Troeger, Willi, Wiedemann, Stephan, Winzer, Robert, Youssef, Akram, Zhang, Kun   +14 more
core   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

Engineered Cardiac Pacemaker Nodes Created by TBX18 Gene Transfer Overcome Source–Sink Mismatch

Advanced Science, 2019
Every heartbeat originates from a tiny tissue in the heart called the sinoatrial node (SAN). The SAN harbors only ≈10 000 cardiac pacemaker cells, initiating an electrical impulse that captures the entire heart, consisting of billions of cardiomyocytes ...
Sandra I. Grijalva, Jin‐mo Gu, Jun Li, Natasha Fernandez, Jinqi Fan, Jung Hoon Sung, Seung Yup Lee, Conner Herndon, Erin M. Buckley, Sung‐Jin Park, Flavio H. Fenton, Hee Cheol Cho   +11 more
doaj   +1 more source

A pacemaker-assisted microvascular decompression for a patient with left primary facial spasm and arrhythmia: a case report

BMC Surgery, 2021
Background Primary facial spasm accompanied by arrhythmia is a rare clinical phenomenon and has not been reported before. We describe this phenomenon and discuss its mechanism and treatment.
Yufei Liu, Jihu Yang, Xiejun Zhang, Fanfan Chen, Liwei Zhang, Guodong Huang   +5 more
doaj   +1 more source