Why the study?
Does pharmacological sympathetic nerve blockade alter the frequency components of MSNA, heart rate, and arterial pressure in healthy women?
Population
11 healthy women
Comparison
Pharmacological sympathetic nerve blockade with… vs Baseline (no blockade)
Design
Other
Authors
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Phentolamine but not propranolol blunts LF MSNA-BP linkage; confirms sympathetic vasomotor origin of LF oscillations but leaves clinical relevance open.
Does pharmacological sympathetic nerve blockade alter the frequency components of MSNA, heart rate, and arterial pressure in healthy women?
The low-frequency component of muscle sympathetic nerve activity reflects active autonomic oscillations that determine arterial pressure variability, whereas the high-frequency component is passive.
Nakata et al. (1998) studied this question.
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