2004
DOI: 10.1007/s00421-004-1235-x
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Effect of perfusate temperature on pulmonary vascular resistance and compliance by arterial and venous occlusion in the rat

Abstract: The effect of different temperatures of perfusing fluid was tested on the pulmonary circulation of the rat. With increasing temperature, a decrease in overall pulmonary vascular resistance was observed, which depended on the associated reductions of arterial, venous and capillary vascular resistances. The highest sensitivity to temperature changes was exhibited by the venous segment. The overall sensitivity of pulmonary vessels to temperature caused a reduction in hydraulic resistance of about 1% for each 1 de… Show more

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Cited by 26 publications
(13 citation statements)
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“…Second, cardiac filling time and potentially filling pressure (i.e., P CV ) are negatively correlated with f H and temperature (1,47,48). Temperature may passively increase venous compliance (32,45,52), possibly reducing circulating blood volume and decreasing adrenergically mediated venous vascular tone (48). However, Sandblom and Axelsson (48) demonstrated for rainbow trout that cardiac filling pressure is maintained constant due to a decrease in vascular capacitance, which mobilizes blood to the central venous compartment when f H increases during a moderate (10 -16°C) acute temperature increase.…”
Section: Discussionmentioning
confidence: 98%
“…Second, cardiac filling time and potentially filling pressure (i.e., P CV ) are negatively correlated with f H and temperature (1,47,48). Temperature may passively increase venous compliance (32,45,52), possibly reducing circulating blood volume and decreasing adrenergically mediated venous vascular tone (48). However, Sandblom and Axelsson (48) demonstrated for rainbow trout that cardiac filling pressure is maintained constant due to a decrease in vascular capacitance, which mobilizes blood to the central venous compartment when f H increases during a moderate (10 -16°C) acute temperature increase.…”
Section: Discussionmentioning
confidence: 98%
“…During the re-warming period of EVLP, high PVRs are expected due to vasoconstriction of the pulmonary vasculature secondary to cold temperature of the lung and the perfusate. 26,27 We thus advocate very low perfusate flows during this period (see Table 1). 2.…”
Section: Ventilation-perfusion Interactions During Evlpmentioning
confidence: 96%
“…In a previous animal study, Rubini (2005) described increased compliance of pulmonary vessels in rats when temperature rose, with the arterial area exhibiting the highest sensitivity to temperature changes when the range was between 35 and 45°C. Similarly, Tsatsaris (2005) reported that temperature increase facilitates the expansion of descending thoracic aorta.…”
Section: Immediate Effects Of Acute Footbath On Arterial Stiffnessmentioning
confidence: 96%
“…Second, thermal therapy increases the blood flow (Green et al 2010;Imamura et al 2001) resulting in increased shear stress that may modulate arterial stiffness (Kinlay et al 2001). Finally, previous investigation in animals indicated that stiffness of blood vessels can be improved by high temperature (Rubini 2005;Tsatsaris 2005). Based on the above facts, we previously investigated the effect of acute systemic thermal therapy, and demonstrated that warm shower can improve arterial stiffness transiently in healthy young men (Zhu et al 2009).…”
Section: Introductionmentioning
confidence: 96%