Improved cardiac protection with Sabax cardioplegia in Langendorff isolated rat hearts
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چکیده
منابع مشابه
Volatile cardioplegia: fast normothermic cardiac arrest induction and recovery with halothane in isolated rat hearts.
To study the effect of halothane as a cardioplegic agent, ten Wistar rats were anesthetized by ether inhalation and their hearts were perfused in a Langendorff system with Krebs-Henseleit solution (36 degrees C; 90 cm H2O pressure). After a 15-min period for stabilization the control values for heart rate, force(T), dT/dt and coronary flow were recorded and a halothane-enriched solution (same t...
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Optical mapping of the cardiac surface with voltage-sensitive fluorescent dyes has become an important tool to investigate electrical excitation in experimental models that range in scale from cell cultures to whole-organs([1, 2]). Using state-of-the-art optical imaging systems, generation and propagation of action potentials during normal cardiac rhythm or throughout initiation and maintenance...
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Objective: During cardioplegia, which is often used in cardiac surgery, the heart is subjected to global ischemia/reperfusion injury, which can result in a post-operative impairment of cardiac function. Mitochondria permeability transition pores (MPTP) play a key role in cardiomyocyte survival after ischemia/reperfusion injury. It was shown in clinical settings that blockers of MPTP like cyclos...
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An imaging system suitable for recordings from Langendorff-perfused rat hearts using the voltage-sensitive dye 4-[beta-[2-(di-n-butylamino)-6-naphthyl]vinyl]pyridinium (di-4-ANEPPS) has been developed. Conduction velocity was measured under hyper- and hypokalemic conditions, as well as at physiological and reduced temperature. Elevation of extracellular [K(+)] to 9 mM from 5.9 mM caused a slowi...
متن کاملRegional ischemia in hypertrophic Langendorff-perfused rat hearts.
Myocardial hypertrophy decreases the muscle mass-to-vascularization ratio, thereby changing myocardial perfusion. The effect of these changes on myocardial oxygenation in hypertrophic Langendorff-perfused rat hearts was measured using epimyocardial NADH videofluorimetry, whereby ischemic myocardium displays a high fluorescence intensity. Hypertrophic hearts, in contrast to control hearts, devel...
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ژورنال
عنوان ژورنال: Acta Medica Marisiensis
سال: 2014
ISSN: 2247-6113
DOI: 10.1515/amma-2015-0004