Cited by 526Heart Rate Variability and Autonomic ControlBlood Pressure and Hypertension StudiesCardiovascular Syncope and Autonomic Disorders

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

Baroreflex Control of Sympathetic Nerve Activity in Essential and Secondary Hypertension

Abstract

Abstract —Studies performed in experimental animals and in humans have documented that high blood pressure markedly impairs baroreceptor control of heart rate. Whether a similar impairment also characterizes baroreceptor control of sympathetic activity modulating peripheral vasomotor tone is still unknown. In 28 untreated essential hypertensive subjects [14 of moderate and 14 of more severe degree, age 51.6±2.4 and 52.6±2.1 years (mean±SEM)] and in 13 untreated secondary hypertensives (renovascular or pheochromocytoma, age 50.1±4.6 years), we measured beat-to-beat arterial blood pressure (finger photoplethysmographic device), heart rate (electrocardiogram), and efferent postganglionic muscle sympathetic nerve activity (microneurography) at rest and during baroreceptor stimulation and deactivation induced by stepwise intravenous infusions of phenylephrine and nitroprusside, respectively. Data were compared with those obtained in 15 age-matched normotensive control subjects. Muscle sympathetic nerve activity (bursts per 100 heart beats) showed a progressive and significant ( P <.01) increase from normotension (40.3±3.3) to moderate (55.6±4.1) and more severe essential hypertension (68.2±4.1), paralleling the progressive increase in blood pressure values. In contrast, muscle sympathetic nerve activity was not increased in secondary hypertensives (40.5±6.7) despite blood pressure values similar to or even greater than those of severe essential hypertensives. In both essential and secondary hypertensives, baroreceptor–heart rate control was displaced toward elevated blood pressure values and markedly impaired compared with normotensive subjects (average reduction, 38.5%). In contrast, the sympathoinhibitory and sympathoexcitatory responses to baroreceptor stimulation and deactivation were displaced toward elevated blood pressure values but similar in all groups. Thus, sympathetic activation characterizes essential but not secondary hypertension. Regardless of its nature, however, hypertension is not accompanied by an impairment of baroreceptor modulation of sympathetic activity.

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Crossref · 10.1161/01.hyp.31.1.68

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Research works printed but not linked: 11

  1. Mancia G Grassi G Ferrari AU. Reflex control of the circulation in experimental and human hypertension. In: Zanchetti A Mancia G eds. Handbook of Hypertension Vol 17: Pathophysiology of Hypertension. Amsterdam Netherlands: Elsevier Science; 1997:568–601.
  2. 10.1161/res.47.6.7438338 · DOI
  3. 10.1161/res.43.2.97032 · DOI
  4. 10.1161/circ.82.3.2394007 · DOI
  5. 10.1161/res.57.3.4028348 · DOI
  6. 10.1161/circ.92.11.3206 · DOI
  7. Mancia G Parati G Di Rienzo M Zanchetti A. Blood pressure variability. In: Zanchetti A Mancia G eds. Handbook of Hypertension Vol 17: Pathophysiology of Hypertension. Amsterdam Netherlands: Elsevier Science; 1997:117–169.
  8. 10.1161/res.53.1.6861300 · DOI
  9. 10.1161/hyp.25.4.560 · DOI
  10. Mancia G Zanchetti A. Hypothalamic control of autonomic functions. In: Panksepp PJ Morgane J eds. Handbook of Hypothalamus. New York NY: Dekker; 1981:147–202.
  11. Esler M. Sympathetic activity in experimental and human hypertension. In: Zanchetti A Mancia G eds. Handbook of Hypertension Vol 17: Pathophysiology of Hypertension. Amsterdam Netherlands: Elsevier Science; 1997:628–673.

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Metadata

Authors
Grassi, G., Cattaneo, B. M., Seravalle, G., Lanfranchi, A., & Mancia, G.
Affiliations
University of Milan (IT)
Venue
Hypertension
Published
1998-01
Volume
31
Issue
1
Pages
68-72
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W2128791637
Cited by
526
References
26
Citations by year
2026: 10 · 2025: 6 · 2024: 11 · 2023: 18 · 2022: 10 · 2021: 12 · 2020: 10 · 2019: 17 · 2018: 20 · 2017: 11 · 2016: 27 · 2015: 24 · 2014: 36 · 2013: 37 · 2012: 31
FWCI
11.86
Type
journal article
Language
en
Open access
closed
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Syncope and Autonomic Disorders
Keywords
baroreflex, muscle sympathetic nerve activity, essential hypertension, secondary hypertension, renovascular hypertension, pheochromocytoma, phenylephrine, sodium nitroprusside, blood pressure
MeSH terms
Blood Pressure, Cardiovascular Agents, Female, Heart Rate, Humans, Hypertension, Hypertension, Renovascular, Male, Middle Aged, Nitroprusside, Phenylephrine, Pheochromocytoma, Pressoreceptors, Sympathetic Nervous System, Case-Control Studies, Muscle, Skeletal

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