Experimental Methods for Simultaneous Measurement of Action Potentials and Electrograms in Isolated Heart

Monophasic action potential (MAP) can be recorded from the heart surface by optical method based on fluorescence measurement. The motion of isolated heart during experiment caused additional noise in recorded signal. The motion artifact can be eliminated by ratiometric fluorescence emission measurements. This study is based on experiments in which optical MAP measurement is done by single-wavelength and dual-wavelength measurement of fluorescence emission. Both recording setups are presented and their advantages and disadvantages are discussed. MAPs recorded by both methods from isolated rabbit hearts perfused according to Langendorff are presented. Simultaneous electrograms (EG) and MAPs recording are analyzed and measurement of velocity of impulse conduction through heart tissue is presented.

Celý článek

Experimentální kardiologie

Jana KolářováJana Kolářová

Oto JanoušekOto Janoušek

Ivo ProvazníkIvo Provazník

Marie Novakova

Katerina Fialova

Sledujte nás

Na sociálních sítích pravidelně informujeme o našich vzdělávacích aktivitách. Nezapomínáme ani na žhavé novinky z oboru či zajímavé pracovní pozice v biomedicíně.

Podpora talentů

Podporujeme nadané studenty a začínající vědce. Zapojit se můžete i vy. Ať už finančním darem či podporou vzdělávacích aktivit v oblasti přírodních věd a biomedicínského inženýrství.