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[Seasonal variations of blood pressure in normal subjects and patients with chronic disease].
Arch Mal Coeur Vaiss. 1997 Sep; 90(9):1239-46.AM

Abstract

The characteristics and determining factors of seasonal variations of the blood pressure (BP) were studied in 20 normal subjects and 219 chronic stable chronically all patients, most of whom were ambulatory. The BP was measured repetitively over twelve months and measurements in the lying position repeated after one minute of orthostatism were performed in Winter and in Summer. In normal subjects, the BP decreased from June to reach its lowest value in August to return to the Winter values from October. The mean BP of the three Winter months was 130/79 mmHg and the seasonal lowering averages 5 +/- 5/5 +/- 6 mmHg (m +/- SD) (p < 0.01), with marked individual differences. The Summer decrease in BP was observed both lying down (3/4 mmHg) (p = 0.01) and standing (5/6) (p = 0.0001). In the patient group, the Summer decrease in BP was 4/3 mmHg. During the orthostatic measurements, it was 4/4 mmHg lying down and 6/5 mmHg when upright. Symptoms of orthostatic hypotension were reported spontaneously 10 times during the Winter and 21 times during the Summer months (p = 0.04) and occurred in the upright position in 12 patients (6%) in Winter and 25 patients (12%) in Summer (p = 0.025). The Summer decrease was greater in women than in men. Blood pressure lowering drugs increased this effect and the association of several drugs had an additive effect. It increased with age but disappeared after 70-80 years of age. The very elderly patients on antihypertensive therapy showed a marked decrease in BP during the Summer, especially in the upright position. The Summer decrease in BP is important for the management of elderly patients with hypertension or cardiac failure. It may favorize symptoms of orthostatic hypotension and increase the risk of malaise.

Authors

Verdon F
No affiliation info available
Jacot E
No affiliation info available
Boudry JF
No affiliation info available
Chuat M
No affiliation info available
Truong CB
No affiliation info available
Studer JP
No affiliation info available

MeSH

AdultAge FactorsAgedAntihypertensive AgentsBlood PressureBlood Pressure Monitoring, AmbulatoryBlood Pressure MonitorsFemaleHumansHypertensionHypotension, OrthostaticMaleMiddle AgedPostureSeasonsSex FactorsTemperature

Pub Type(s)

English Abstract
Journal Article
Review

Language

fre

PubMed ID

9488770

Citation

Verdon, F, et al. "[Seasonal Variations of Blood Pressure in Normal Subjects and Patients With Chronic Disease]." Archives Des Maladies Du Coeur Et Des Vaisseaux, vol. 90, no. 9, 1997, pp. 1239-46.
Verdon F, Jacot E, Boudry JF, et al. [Seasonal variations of blood pressure in normal subjects and patients with chronic disease]. Arch Mal Coeur Vaiss. 1997;90(9):1239-46.
Verdon, F., Jacot, E., Boudry, J. F., Chuat, M., Truong, C. B., & Studer, J. P. (1997). [Seasonal variations of blood pressure in normal subjects and patients with chronic disease]. Archives Des Maladies Du Coeur Et Des Vaisseaux, 90(9), 1239-46.
Verdon F, et al. [Seasonal Variations of Blood Pressure in Normal Subjects and Patients With Chronic Disease]. Arch Mal Coeur Vaiss. 1997;90(9):1239-46. PubMed PMID: 9488770.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Seasonal variations of blood pressure in normal subjects and patients with chronic disease]. AU - Verdon,F, AU - Jacot,E, AU - Boudry,J F, AU - Chuat,M, AU - Truong,C B, AU - Studer,J P, PY - 1998/3/7/pubmed PY - 1998/3/7/medline PY - 1998/3/7/entrez SP - 1239 EP - 46 JF - Archives des maladies du coeur et des vaisseaux JO - Arch Mal Coeur Vaiss VL - 90 IS - 9 N2 - The characteristics and determining factors of seasonal variations of the blood pressure (BP) were studied in 20 normal subjects and 219 chronic stable chronically all patients, most of whom were ambulatory. The BP was measured repetitively over twelve months and measurements in the lying position repeated after one minute of orthostatism were performed in Winter and in Summer. In normal subjects, the BP decreased from June to reach its lowest value in August to return to the Winter values from October. The mean BP of the three Winter months was 130/79 mmHg and the seasonal lowering averages 5 +/- 5/5 +/- 6 mmHg (m +/- SD) (p < 0.01), with marked individual differences. The Summer decrease in BP was observed both lying down (3/4 mmHg) (p = 0.01) and standing (5/6) (p = 0.0001). In the patient group, the Summer decrease in BP was 4/3 mmHg. During the orthostatic measurements, it was 4/4 mmHg lying down and 6/5 mmHg when upright. Symptoms of orthostatic hypotension were reported spontaneously 10 times during the Winter and 21 times during the Summer months (p = 0.04) and occurred in the upright position in 12 patients (6%) in Winter and 25 patients (12%) in Summer (p = 0.025). The Summer decrease was greater in women than in men. Blood pressure lowering drugs increased this effect and the association of several drugs had an additive effect. It increased with age but disappeared after 70-80 years of age. The very elderly patients on antihypertensive therapy showed a marked decrease in BP during the Summer, especially in the upright position. The Summer decrease in BP is important for the management of elderly patients with hypertension or cardiac failure. It may favorize symptoms of orthostatic hypotension and increase the risk of malaise. SN - 0003-9683 UR - https://www.unboundmedicine.com/medline/citation/9488770/[Seasonal_variations_of_blood_pressure_in_normal_subjects_and_patients_with_chronic_disease]_ L2 - https://medlineplus.gov/highbloodpressure.html DB - PRIME DP - Unbound Medicine ER -