Cardiovascular Journal of Africa: Vol 21 No 1 (January/February 2010) - page 22

CARDIOVASCULAR JOURNAL OF AFRICA • Vol 21, No 1, January/February 2010
20
AFRICA
Findings from this study suggest that it would be useful to
record ambient temperatures when doing blood pressure surveys,
and taking them into account during the analysis stage, such as
using a regression coefficient of temperature to standardise blood
pressures to a fixed ambient temperature, for example 25ºC. It
would also be important to take the seasonal variation of blood
pressure into account during routine clinical practice such as the
monitoring and management of patients who have high blood
pressure. The public health implications of this relationship
could be underestimated and therefore there is a need to conduct
more studies in sub-Saharan Africa to investigate these findings.
We are grateful to Dr PatrickAnsah of the Navrongo Health Research Centre,
as the study would not have been possible without him. We thank Rufina
Asuru for the immense assistance given during the course of the study, as
well as all field workers, their supervisor, the study participants and all those
who contributed to making the study possible.
References
Rosenthal T. Seasonal variations in blood pressure.
1.
Am J Geriatr Cardiol
2004;
13
(5): 267–272.
Brennan PJ, Greenberg G, Miall WE, Thompson SG. Seasonal variation
2.
in arterial blood pressure.
Br Med J
1982;
285
: 919–923.
Fujiwara T, Kawamura M, Nakajima J, Adachi T, Hiramori K. Seasonal
3.
differences in diurnal blood pressure of hypertensive patients living in a
stable environmental temperature.
J Hypertens
1995;
13
: 1747–1752.
Imai Y, Munakata M, Tsuji I, Ohkubo T, Satoh H, Yoshino H,
4.
et al
.
Seasonal variation in blood pressure in normotensive women studied by
home measurements.
Clin Sci
1996;
90
: 55–60
Woodhouse PR, Khaw KT, Plummer M. Seasonal variation of blood
5.
pressure and its relationship to ambient temperature in an elderly popula-
tion.
J Hypertens
1993;
11
(11): 1267–1274.
Hopman R, Remen L. Jaherszeitliche krankheirsbereitschaft, Blutdruck-
6.
hohe und Jahreszeiten.
Z Klin Med
1921;
122
: 703–710.
Kaufmann F. Uber die Haufigkeit Einzelner wichtiger Klagen und
7.
unamnestischer Angaben bei Kranken mit arterieller hypertension.
Munch Med Wochenschr
1924;
36
: 1230–1233.
Brown GE. Daily and monthly rhythm in blood pressure of man with
8.
hypertension.
Ann Intern Med
1930;
3
: 1177–1189.
Rose G. Seasonal variations in blood pressure in man.
9.
Nature
1961;
189
: 235–239.
Jenner DA, English DR, Andongen R, Beilin LJ, Armstrong BK,
10.
Dunbar D. Environmental temperature and blood pressure in 9-year-old
Australian children.
J Hypertens
1987;
5
: 683–686.
Coleman A, Freeman P, Steel S, Shennan A. Validation of the Omron
11.
MX3 Plus oscillometric blood pressure monitoring device according
to the European Society of Hypertension International Protocol.
Blood
Press Monit
2005;
10
(3): 165–168.
MONICA Manual. Part III: Population Survey; 1997.
(
12.
fi/publications/monica/manual/part3/iii-1.htm, accessed 15 February
2009).
Jansen PM, Leineweber MJ, Thien Th. The effect of a change in ambi-
13.
ent temperature on blood pressure in normotensives.
J Hum Hypertens
2001;
15
: 113–117.
Kristal–Boneh E, Harari G, Green MS, Ribak J. Summer-winter vari-
14.
ation in 24 hr ambulatory blood pressure.
Blood Press Monit
1996;
1
:
87–94.
Woodhouse PR, Khaw KT, Plummer M. Seasonal variation of blood
15.
pressure and its relationship to ambient temperature in an elderly popula-
tion.
J Hypertens
1993;
11
: 1267–1274.
Komulainen S, Oja T, Rintamäki H, Virokannas H, Keinänen-
16.
Kiukaanniemi S. Blood pressure and thermal responses to whole body
cold exposure in mildly hypertensive subjects.
J Therm Biol
2004;
29
(7–8): 851–856.
Chifamba J, Mufunda J, Sigola LB, Matenga JA, Sparks HV. Effect of
17.
variation in environmental temperature on blood pressure: is it impor-
tant?
Cent Afr J Med
1998;
44
(2): 37–40.
Giaconi S, Ghione S, Palombo C, Genovesi-Ebert A, Marabotti C,
18.
Fommei E, Donato L. Seasonal influences on blood pressure in high
normal to mild hypertensive range.
Hypertension
1989;
14
: 22–27.
Spencer FA, Goldberg RJ, Becker RC, Gore JM. Seasonal distribu-
19.
tion of acute myocardial Infarction in the second National Registry of
Myocardial Infarction.
J Am Coll Cardiol
1998;
31
: 1226–1233.
Lejeune JP, Vinchon M, Amouyel P, Escartin T, Escartin D, Christiaens
20.
JL. Association of occurrence of aneurismal bleeding with meteorologic
variations in the north of France.
Stroke
1994;
25
: 338–341.
Cooper R, Rotimi C, Ataman S, McGee D, Osotimehin B, Kadri S,
21.
et
al
. The prevalence of hypertension in seven populations of West African
origin.
Am J Pub Hlth
1997;
87
: 160–168.
1...,12,13,14,15,16,17,18,19,20,21 23,24,25,26,27,28,29,30,31,32,...68
Powered by FlippingBook