Latest News


Medical Technology of the Future

We are excited to announce the publication of our latest work in Nature Biomedical Engineering. In collaboration with the John Rogers' Lab, we validated their novel electrode design by simultaneously recording while collecting optically mapping images in an in-vitro Langendorff perfused rabbit heart. This device platform overcomes issues associated with chronic implantation of metal oxide electrodes (e.g. intrusion of biofluids into underlying electronics and current leakage).


Yesterday evening was the yearly GWU SEAS R&D Showcase. Students from all of GWU's engineering disciplines prepared posters of their work and were judged by a panel of investigators and volunteers from industry. We would like to congratulate Chris Gloschat for being awarded 3rd Place Best Experimental Poster and Jaclyn Brennan for being awarded a Runner-Up Student Travel Award!

Leducq Foundation funded our transatlantic network of excellence: RHYTHM!

Our transatlantic network consisting of 6 universities received funding from the Leducq Foundation. Our project is titled Repolarization HeterogeneitY imaging for personalised Therapy of Heart arrhythMia (RHYTHM). Project was among only 5 funded proposals selected from 120 submitted. Project description and participants on the Leducq Foundation web-site:

The Heart of the Matter

Since 1958, average life expectancy in the US has increased by 10 years. According to Igor Efimov, the inaugural chair of GW’s Department of Biomedical Engineering and the Alisann and Terry Collins Professor of Biomedical Engineering, the 68 percent reduction in the mortality rate from heart disease during the same period is a huge contributor to this remarkable gain in life expectancy.

That said, heart disease still remains the country’s number one killer, and Dr. Efimov has dedicated his life’s work to better understanding and developing devices to treat it.

Journal Club - #38

Phase I and phase II of short-term mechanical restitution in perfused rat left ventricles

Dumitrescu C, Narayan P, Cheng Y, Efimov IR, Altschuld RA

Am J Physiol Heart Circ Physiol. 2002 Apr;282(4):H1131-9 [PubMed]

Journal Club - #37

Imaging of the atrioventricular node using optical coherence tomography

Gupta M, Rollins AM, Izatt JA, Efimov IR

J Cardiovasc Electrophysiol. 2002 Jan; 13(1):95 [PubMed]

Journal Club - #35

Mechanisms of make and break excitation revisited: paradoxical break excitation during diastolic stimulation

Nikolski VP, Sambelashvili AT, Efimov IR

Am J Physiol Heart Circ Physiol. 2002 Feb;282(2):H565-75 [PubMed]

Journal Club - #34

The mechanisms of the vulnerable window: the role of virtual electrodes and shock polarity

Yamanouchi Y, Cheng Y, Tchou PJ, Efimov IR

Can J Physiol Pharmacol. 2001 Jan;79(1):25-33 [PubMed]