Diurnal Variations in Arterial Blood Pressure

Weysse, Arthur W.; Lutz, Brenton R.

doi:10.1152/ajplegacy.1915.37.2.330

Cited by 26 publications

(7 citation statements)

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“…and the acrophase (the time from a selected reference point, e.g., mid night or midsleep, to the highest point on the curve) was at 18.30 h. This study furnished the additional information of a 90% range (106-142 mm Hg) which can serve as an in dividualized reference standard, and thus can serve as this subject's 'normal range' if he, at some future time, suffers from disorders which cause alterations in his blood pres sure. Although this range of 36 mm Hg may seem excessive in the light of the 3-4 mm Hg cited by the National Center for Health Statistics in 1964 [43], recent studies, including a large number of within-day measurements, reveal that an individual's blood pressure varies widely in the course of an average day [2,7,21,47,48,52,61],…”

Section: Historical Perspectivementioning

confidence: 99%

Chronobiology of Blood Pressure

Delea¹

1979

Nephron

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Blood pressure in normal and hypertensive subjects shows circadian variability with the minima during the hours of sleep. The factors influencing blood pressure show circadian variability, in particular, plasma and urinary aldosterone, plasma deoxycorticosterone and urinary sodium (factors implicated in cardiac output), angiotensin II as measured by plasma renin activity, plasma and urinary epinephrine and norepinephrine, and plasma and urinary prostaglandins of the E series (factors implicated in peripheral resistance). Direct causal relationships have not been established. The treatment of hypertensive subjects in relation to the circadian variability is reviewed.

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Section: Historical Perspectivementioning

confidence: 99%

Chronobiology of Blood Pressure

Delea¹

1979

Nephron

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“…Using a reliable, simple to use device for recording blood pressure, which was discovered in 1896 (Riva-Rocci, 1896), we made a number of observations, in hospitalized patients only, based on the following: (1) the large variability of blood pressure during the day and night hours with a gradual rise in the same subject, with a maximum in the first and last hours of the day; (2) blood pressure behavior similar but not equal among patients (Brooks and Carroll, 1912;Brush and Fayerweater, 1901;Hill, 1898;Howell, 1897;Weysse and Lutz, 1915).…”

Section: Introductionmentioning

confidence: 99%

Detection of a diurnal rhythm in arterial blood pressure in the evaluation of 24‐hour antihypertensive therapy

Germanò¹,

Ciavarella²,

Appolloni³

et al. 1984

Clinical Cardiology

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Summary:Uncertainty in defining hypertensive disease makes a prolonged study of blood pressure pattern necessary, using continuous or semicontinuous blood pressure recordings. Its pathophysiological meaning involves data sufficiently indicative of blood pressure profile with reference to the continuous stimulations of different intensity and duration, which are met by subjects both in their daily activities and in the passage from an active life to sleep. Such a parameter is, in fact, an indispensable premise for a correct course of therapy. The aim of our work was at first the detection of a diurnal rhythm in blood pressure, using data obtained in a 24-h ambulatory monitoring away from the conditioning of different activities and daily routine. We have employed three groups of 34 males each. The first group consisted of hypertensive outpatients, while hospitalized subjects comprised the second group. Thethird group was composed of normal subjects. Furthermore, after finding this system productive, we started studying whether this rhythm of blood pressure could be modified under the influence of a single administered drug dose, and whether information obtained could be easily interpreted. We studied 12 male patients with essential hypertension, which had been untreated. Each patient underwent three 24-h blood pressure ambulatory monitorings. Two different doses of nifedipine (10 and 20 mg) were randomly administered to each of the patients at the beginning of the second and third readings. We observed a significant fall in systolic blood pressure and a minor decrease in diastolic blood pressure after administration of a single 10 mg nifedipine tablet.

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“…In the 18th and 19th centuries and the beginning of the 20th century, general observations plus detailed data on daily variations in pulse rate and pulse quality were reported (Autenrieth, 1801;Barthez, 1806;Bordenave, 1787;Falconer, 1797;Hensen, 1900;Hill, 1898;Howell, 1897;Hufeland, 1797;Jellinek, 1900;Knox, 1815;Lemmer, 1989Lemmer, , 1991Lemmer, , 2001Lemmer, , 2004aLemmer, , 2004bLemmer, , 2005Lemmer, , 2007aReil, 1796;Weysse & Lutz, 1915;Wilhelm, 1806b;Zimmermann, 1793). Joseph Struthius (1510Struthius ( -1568, the physician of the Polish Emperor Sigismund, was apparently the first to correlate the different frequencies and qualities of the pulse through the annotation of music, as recorded in his book, Ars Sphygmica (see Figure 13).…”

Section: Rhythms In Heart Ratementioning

confidence: 99%

Discoveries of Rhythms in Human Biological Functions: A Historical Review

Lemmer

2009

LCBI

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Though there are very early and ancient observations on the daily variation in physiological and pathophysiological functions (e.g., bronchial asthma), more detailed and scientific reports were not published until the beginning of the 17th century. The aim of this review is to bring those reports to the attention of researchers of chronobiol-ogy and chronopharmacology. The ancient books and their contents, which constitute the basis for this review, are part of the personal library collection of the author; numerous observations and reports on biologic rhythms in man are presented here for the first time. The intent of this review is to demonstrate that the fields of chrono-biology and chronopharmacology are not only a new and modern branch of science, but that it stands on the shoulders of wonderful and insightful observations and explanations made by our scientific forefathers. It is the hope that the reader will enjoy the richness of the ancient reports that contribute to our present knowledge achieved through astute early biologic rhythm research. (Author correspondence: bjoern. lemmer@pharmtox.uni-heidelberg.de)

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Diurnal Variations in Arterial Blood Pressure

Cited by 26 publications

References 0 publications

Chronobiology of Blood Pressure

Chronobiology of Blood Pressure

Detection of a diurnal rhythm in arterial blood pressure in the evaluation of 24‐hour antihypertensive therapy

Discoveries of Rhythms in Human Biological Functions: A Historical Review

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