Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Elias Sevaptsidis"'
Autor:
Karthikeyan Umapathy, Sheila Watkins, Krishnakumar Nair, Marjan Kusha, Talha Farid, John S. Floras, Kumaraswamy Nanthakumar, Elias Sevaptsidis, Kwaku Poku, John Asta, Jeku Jacob, Stéphane Massé
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 302:H1533-H1537
It is unknown whether ventricular fibrillation (VF) studied in experimental models represents in vivo human VF. First, we examined closed chest in vivo VF induced at defibrillation threshold testing (DFT) in four patients with ischemic cardiomyopathy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f808f33eaf1415725bdca704c65d266e
https://doi.org/10.1152/ajpheart.00471.2011
https://doi.org/10.1152/ajpheart.00471.2011
Autor:
Menashe B. Waxman, Stéphane Massé, Elias Sevaptsidis, Karthikeyan Umapathy, Kumaraswamy Nanthakumar, Paul Dorian
Publikováno v:
Canadian Medical Association Journal. 178:1451-1457
The ability of an electrical discharge to stimulate the heart depends on the duration of the pulse, the voltage and the current density that reaches the heart. Stun guns deliver very short electrical pulses with minimal amount of current at high volt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea7de63fb661bb3a98f4851656b3eb26
https://doi.org/10.1503/cmaj.071867
https://doi.org/10.1503/cmaj.071867
Autor:
Graham A. Wright, Stéphane Massé, Sergey Mironov, Rajesh Dhopeshwarkar, Eugene Downar, José Jalife, Mihaela Pop, Elias Sevaptsidis, John Asta, Kumaraswamy Nanthakumar, Heather J. Ross, Vivek Rao, Jack M. Rogers
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 293:H875-H880
Our objective was to establish a novel model for the study of ventricular fibrillation (VF) in humans. We adopted the established techniques of optical mapping to human ventricles for the first time to determine whether human VF is the result of wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d258e39e02c89efb2738c4dd9b135785
https://doi.org/10.1152/ajpheart.01415.2006
https://doi.org/10.1152/ajpheart.01415.2006
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 292:H2589-H2597
Ventricular fibrillation (VF) is an important cause of sudden cardiac death and cardiovascular mortality in patients with cardiomyopathy. Although it was generally believed that chaotic reentrant wavefronts underlie VF in humans, there is emerging ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e7b2b93c4bd6821dca3bd984da3e214
https://doi.org/10.1152/ajpheart.01336.2006
https://doi.org/10.1152/ajpheart.01336.2006
Autor:
Louise Harris, Elias Sevaptsidis, S. Kimber, J. C. Doig, Lynda L. Mickleborough, Stéphane Massé, T. C. K. Chen, J. Saito, M.-H. Shi, Eugene Downar
Publikováno v:
Journal of Interventional Cardiac Electrophysiology. 2:235-245
Background:Diastolic potentials are often sought as a possible site for catheter ablation in post-infarct ventricular tachycardia. However, delivery of energy at such sites is often unsuccessful. The purpose of this study was to determine the charact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cf20a0b991719a2868c925de8bb5229
https://doi.org/10.1023/a:1009776618809
https://doi.org/10.1023/a:1009776618809
Autor:
Tom Wei-Wu Chen, Stéphane Massé, S. Kimber, Lynda L. Mickleborough, Elias Sevaptsidis, Eugene Downar, Ian Parsons
Publikováno v:
Pacing and Clinical Electrophysiology. 19:1196-1204
Controversy exists as to whether the unipolar or bipolar electrode configuration is superior in detecting local activations during cardiac mapping studies. However, the strengths and weaknesses of each mode suggest that they may provide complementary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08941883c1fd570d497168051ab931d4
https://doi.org/10.1111/j.1540-8159.1996.tb04189.x
https://doi.org/10.1111/j.1540-8159.1996.tb04189.x
Autor:
Thomas C.K. Chen, Eugene Downar, Lynda L. Mickleborough, Albert Chan, S. Massé, Anthony Glanz, L. Harris, William C. Williams, Elias Sevaptsidis, Shane Kimber, Adriana Genga
Publikováno v:
Journal of the American College of Cardiology. 20:648-655
Objectives. Four patients with previous repair of tetralogy of Fallot and ventricular tachycardia underwent map-guided surgery to ablate the arrhythmias. Background. Although patients with repaired tetralogy of Fallot are at increased risk of sudden
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7fe0ee859e54d062f781bb026599e5b
https://doi.org/10.1016/0735-1097(92)90020-n
https://doi.org/10.1016/0735-1097(92)90020-n
Publikováno v:
Pacing and Clinical Electrophysiology. 14:538-545
A three-dimensional display is described that allows activation sequences from the epicardium and endocardium to be shown simultaneously on the same image. Three electrode arrays (epicardial sock, left ventricular balloon, right ventricular balloon)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16eba38a28f1bca0ab57b568b7270e56
https://doi.org/10.1111/j.1540-8159.1991.tb02826.x
https://doi.org/10.1111/j.1540-8159.1991.tb02826.x
Autor:
Karthikeyan Umapathy, Stephane Masse, Elias Sevaptsidis, John Asta, Talha Farid, Elnaz Shokrollahi, Krishnakumar Nair, Heather Ross, Terry Yau, Robert Cusimano, Sridhar Krishnan, Kumaraswamy Nanthakumar
Publikováno v:
Circulation. 118
Background: Dominant frequency (DF) analysis is a common way of quantitatively studying the spatio-temporal variation of frequency during VF. Areas of high frequencies (e.g. rotors) and low frequencies (e.g. blocks) have been associated with the occu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb9ff297bbe5f3378ebb63b77625aa9
https://doi.org/10.1161/circ.118.suppl_18.s_927-c
https://doi.org/10.1161/circ.118.suppl_18.s_927-c
Autor:
Stephane Masse, John Asta, Elias Sevaptsidis, Robert Cusimano, Terry Yau, Heather Ross, Vivek Rao, Rajesh Dhopeshwarkar, Kumar Nanthakumar
Publikováno v:
Circulation. 116
Background: We had recently established a model for the study of VF in humans using an optical mapping technique in Langendorff perfused human hearts. The optical mapping technique allows for the unequivocal evaluation of wavefront identification, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34a643442c2f3d96db4111b89d5949df
https://doi.org/10.1161/circ.116.suppl_16.ii_278
https://doi.org/10.1161/circ.116.suppl_16.ii_278