An isolated working heart system for large animal models.
An isolated working heart system for large animal models.
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DOI:
10.3791/51671
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发表时间:
2014-06-11
期刊:
影响因子:
--
通讯作者:
Bowles DE
中科院分区:
文献类型:
--
作者:
Schechter MA;Southerland KW;Feger BJ;Linder D Jr;Ali AA;Njoroge L;Milano CA;Bowles DE
Since its introduction in the late 19th century, the Langendorff isolated heart perfusion apparatus, and the subsequent development of the working heart model, have been invaluable tools for studying cardiovascular function and disease1-15. Although the Langendorff heart preparation can be used for any mammalian heart, most studies involving this apparatus use small animal models (e.g., mouse, rat, and rabbit) due to the increased complexity of systems for larger mammals1,3,11. One major difficulty is ensuring a constant coronary perfusion pressure over a range of different heart sizes – a key component of any experiment utilizing this device1,11. By replacing the classic hydrostatic afterload column with a centrifugal pump, the Langendorff working heart apparatus described below allows for easy adjustment and tight regulation of perfusion pressures, meaning the same set-up can be used for various species or heart sizes. Furthermore, this configuration can also seamlessly switch between constant pressure or constant flow during reperfusion, depending on the user’s preferences. The open nature of this setup, despite making temperature regulation more difficult than other designs, allows for easy collection of effluent and ventricular pressure-volume data.
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影响因子:
37.8
作者:
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通讯作者:
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DOI:
10.1016/j.vascn.2006.05.006
发表时间:
2007-03-01
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