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[The specific nature of vagus influences on the heart rhythm under the action of humoral regulators].

Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova

Osadchiĭ OE, Pokrovskiĭ VM, Sheĭkh-zade IuR, Balagurov EM.
PMID: 1363841
Fiziol Zh SSSR Im I M Sechenova. 1992 Oct;78(10):70-6.

Effects of taurin, somatostatin, serotonin and noradrenaline upon the vagal chronotropic action and its components were studied in anesthetised cats. The data obtained suggests the existence of a specific transmitter link for vagal tonic and synchronizing effects upon cardiac...

An unusual cause of electrical alternans.

Chest

Apte NM.
PMID: 1516448
Chest. 1992 Sep;102(3):983-4. doi: 10.1378/chest.102.3.983.

No abstract available.

Prevalence of cardiovascular autonomic dysfunction assessed by spectral analysis and standard tests of heart-rate variation in newly diagnosed IDDM patients.

Diabetes care

Ziegler D, Dannehl K, Volksw D, Mühlen H, Spüler M, Gries FA.
PMID: 1516513
Diabetes Care. 1992 Jul;15(7):908-11. doi: 10.2337/diacare.15.7.908.

OBJECTIVE: To determine the prevalence of cardiovascular autonomic nerve dysfunction in patients with newly diagnosed insulin-dependent diabetes mellitus (IDDM) compared with healthy nondiabetic subjects.RESEARCH DESIGN AND METHODS: A battery of cardiovascular reflex tests was performed in 130 newly diagnosed...

Power spectral analysis of RR variability.

Giornale italiano di cardiologia

Lombardi F, Malliani A.
PMID: 1426789
G Ital Cardiol. 1992 Apr;22(4):501-9.

The analysis of beat-to-beat spontaneous oscillations of heart rate variability is a recent and noninvasive approach capable of providing important information on neural mechanisms controlling cardiovascular function. In particular, with spectral analysis of RR variability, two major components can...

Psychoautonomic approaches to migraine.

Functional neurology

Osipova V.
PMID: 1427358
Funct Neurol. 1992 Jul-Aug;7(4):263-73.

No abstract available.

Tonic sympathetic excitation and vasomotor control from pontine reticular neurons.

The American journal of physiology

Hayes K, Weaver LC.
PMID: 1443208
Am J Physiol. 1992 Nov;263(5):H1567-75. doi: 10.1152/ajpheart.1992.263.5.H1567.

The pontine reticular formation (PRF) was explored for regions providing tonic control of arterial pressure, heart rate, and activity of sympathetic nerves. In Saffan (alfaxalone-alfadolone)-anesthetized rats, discharge of neurons in the PRF or rostral ventrolateral medulla (RVLM) was inhibited...

Power spectral analysis of heart rate and blood pressure variability in anaesthetized dogs.

Acta physiologica Scandinavica

Hedman AE, Hartikainen JE, Tahvanainen KU, Hakumäki MO.
PMID: 1442131
Acta Physiol Scand. 1992 Oct;146(2):155-64. doi: 10.1111/j.1748-1716.1992.tb09404.x.

Short-term oscillation of heart rate and blood pressure are mainly regulated by the automatic nervous system. It has been proposed that non-neural factors, such as changes in intrathoracic pressure, can strongly modulate this rhythmicity. Our aim was to evaluate...

[Blood pressure variability and transient myocardial ischemia in patients with essential hypertension].

Zeitschrift fur Kardiologie

Lanitz EC, Gonska BD, Schrader J.
PMID: 1514310
Z Kardiol. 1992;81:37-9.

To determine whether myocardial ischemia is accompanied by variation in heart rate and/or blood pressure, ST-segment analysis on Holter-ECG and ambulatory blood pressure monitoring was performed in 78 patients (64 males/14 females) with essential hypertension. Thirteen out of 55...

[Analysis of long-term blood pressure measurements during sleep].

Zeitschrift fur Kardiologie

Penzel T, Brandenburg U, Greinke S, Mayer J, Peter JH, von Wichert P.
PMID: 1514314
Z Kardiol. 1992;81:59-62.

Fifty patients with sleep-related breathing disorders and arterial hypertension underwent diagnostic polysomnography for two nights; EEG, EOG, EMG, and respiratory signals were recorded in parallel with invasive blood pressure. Computerized evaluation was performed to calculate systolic and diastolic blood...

Cardiovascular effects of human insular cortex stimulation.

Neurology

Oppenheimer SM, Gelb A, Girvin JP, Hachinski VC.
PMID: 1513461
Neurology. 1992 Sep;42(9):1727-32. doi: 10.1212/wnl.42.9.1727.

Recent investigations indicate a site of cardiac representation within the left insular cortex of the rat. Moreover, the results of lesion studies suggest left-sided insular dominance for sympathetic cardiovascular effects. It is unclear whether similar representation exists within the...

Atrial and brain natriuretic peptides: secretion during exercise in patients with essential hypertension and modulation by acute angiotensin-converting enzyme inhibition.

Clinical and experimental pharmacology & physiology

Kohno M, Horio T, Yokokawa K, Murakawa K, Yasunari K, Kurihara N, Takeda T.
PMID: 1387838
Clin Exp Pharmacol Physiol. 1992 Mar;19(3):193-200. doi: 10.1111/j.1440-1681.1992.tb00438.x.

1. This study examined whether brain and atrial natriuretic peptides (BNP, ANP) are secreted together through the coronary sinus from the heart, and whether plasma concentrations of BNP and ANP were affected by ergometric exercise in patients with essential...

Energetics of paraplegic walking.

Journal of biomedical engineering

Bowker P, Messenger N, Ogilvie C, Rowley DI.
PMID: 1513140
J Biomed Eng. 1992 Jul;14(4):344-50. doi: 10.1016/0141-5425(92)90009-a.

A group of 35 paraplegic subjects using reciprocating walking orthoses have been examined in order to gain an insight into the potential functional benefits of using such devices. Measurements have been made of walking speeds and of the energy...

Showing 1 to 12 of 40174 entries