PHYSIOLOGY
CARDIAC MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increase mean arterial pressure
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increase heart rate
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increase left ventricular contractility
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decrease systolic duration
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Detailed explanation-1: -These results suggest that the left stellate ganglion contributes more sympathetic tone to the myocardium than the right. This explains why most human studies use unilateral left SGB for treatment of ventricular arrhythmias [7••, 13••].
Detailed explanation-2: -Stellate ganglion blocks lead to more blood flow. This can, in turn, ease long COVID symptoms.
Detailed explanation-3: -A stellate ganglion can directly regulate the activity of the cardiac sympathetic nerve and then regulate cardiac activity. Enhanced discharge activity of stellate ganglion can accelerate heart rate and raise blood pressure (48).
Detailed explanation-4: -What is Stellate Ganglion Block? The stellate ganglion block (SGB) is a procedure in which an injection of a long-acting local anesthetic, using ultrasound or fluoroscopic guidance, is made in the right side of the neck around the main nerve that controls the “fight or flight” response (the sympathetic nervous system).