Hypertension Clinical Trial
Official title:
The Analysis of Perioperative Baroreflex Sensitivity in Hypertensives
Impaired baroreflex sensitivity (BRS) is a marker of autonomous dysfunction, which may play an important role in the long-term development of hypertension. Perioperative patients with hypertension is rapidly growing in all populations worldwide. However, no study has reported the values of BRS in this cohort. The aim of this study was to estimate the value of BRS for hypertension in a surgery cohort.
Hypertension is known to be a major risk factor of end-organ damage, stroke and coronary
mortality.It is estimated that one in six people worldwide, or nearly one billion, are
affected by high blood pressure, and it is estimated that this number will increase to 1.5
billion by 2025. The World Health Organization also stated that high blood pressure is the
most attributable cause of cardiovascular death.As the speed of aging is accelerated, the
amount of perioperative hypertensive patients continue to increase. Perioperative
hypertension had been shown to be a risk factor for the development of perioperative
morbidity and mortality.Although it has aroused people's attention, there still lack of
system evaluation and effective control. Therefore, it's urgent and necessary to assess and
intervene perioperative situation of hypertensive patients.
The pathogenesis of hypertension is very complex, while the exact mechanism is still unclear.
The dysfunction of autonomic activity, marked in particular by sympathetic overactivity and
reduced parasympathetic activity, has been hypothesized to underlie the development of
hypertension.Baroreflex control is one of the key mechanisms responsible for the short-term
control of blood pressure.It acts as a closed loop, negative feedback mechanism, aimed at
stabilizing blood pressure around a set point value.The impairment of baroreflex sensitivity
(BRS) is know as the predictive factor of mortality in hypertension. A large of clinical and
basic research indicated the existence of autonomic dysfunction and impaired BRS in patients
with essential hypertension.
However, no study has reported the values of perioperative BRS, especially in hypertensive
patients . Therefore, the aim of this study was to estimate the value of BRS for hypertension
in a surgery cohort, and to explore the functional status of autonomic nervous system, may
provide reference for clinical treatment.
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