Background: The heart is innervated by the autonomic nervous system, which contributes to the control of the heart’s rhythm and coronary circulation. It has been suggested that the cardiac fibers of the vagus nerve play important roles in controlling circulatory functions and in protecting against atherosclerotic pathologies in coronary arteries.
Aims: To investigate the presence of atherosclerotic differences in the coronary arteries of cholesterol-fed rabbits by measuring the density of cardiac ganglia neurons.
Background: Neurogenic stunned myocardium (NSM) is a devastating complication of subarachnoid hemorrhage (SAH). The most widely accepted mechanism in the pathogenesis of NSM and takotsubo cardiomyopathy is catecholamine-mediated direct myocardial injury. The aim of this study is to examine if there is any effect of sympathetic overactivity of the stellate ganglions on myocardial tissues, secondary to vagal complex degeneration in SAH-induced NSM.
View Article and Find Full Text PDFCardiovasc Pathol
December 2017
Background: Subarachnoid hemorrhage (SAH) can lead to neurogenic pulmonary edema (NPE), and chylomicron metabolism may be altered unfavorably in acute lung injury. This study aimed to investigate the possible effect of NPE on the development of coronary fat embolism.
Methods: This study was conducted on 27 rabbits, 5 of which were used as the control (n=5).
Background: Cardiac arrest is a major life-threatening complication of subarachnoid hemorrhage (SAH). Although medullary cardiocirculatuar center injury and central sympathetic overactivity have been suspected of initiating coronary artery spasm-induced cardiac arrest, we aimed to elucidate the effects of vagal ischemia at the brainstem on coronary vasospasm and sudden death in SAH.
Methods: Twenty-six rabbits were randomly divided into 3 groups.
Aim: Pulmonary arteries are mainly innervated by sympathetic vasoconstrictor and parasympathetic vasodilatory fibers. We examined whether there is a relationship between the neuron densities of hilar parasympathetic ganglia and pulmonary vasospasm in subarachnoid hemorrhage (SAH).
Material And Methods: Twenty-four rabbits were divided into two groups: control (n=8) and SAH (n=16).