Why the study?
Does carotid sinus stimulation alter splanchnic blood flow in anesthetized patients?
Does carotid sinus stimulation alter splanchnic blood flow in anesthetized patients?
The splanchnic vascular bed plays a minor role in carotid sinus baroreflex control of systemic arterial pressure in anesthetized humans.
Answers are grounded in this paper and cite their sources.
Indicates minor splanchnic role in baroreflex pressure control under anesthesia; leaves open effects in awake or diseased states.
In 9 patients being subjected to abdominal surgery, electromagnetic blood flow measurements were obtained from the hepatic, mesenteric and iliac beds while the carotid sinus baroreceptors were stimulated by carotid sinus massage. Carotid sinus stimulation produced an average maximum decrease in mean arterial pressure of 21%. Hepatic and mesenteric blood flows decreased by 15% and calculated vascular resistances were not significantly changed in these vascular beds. Iliac blood flow, on the other hand, showed a slight increase and iliac vascular resistance was decreased by 29%. It is concluded that the splanchnic vascular bed is of less importance in the carotid sinus baroreflex control of systemic arterial pressure in anesthetized man.
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Tydén et al. (1979) studied this question.
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