Day-to-day variation in day-night ratio of blood pressure

D 2019

Day-to-day variation in day-night ratio of blood pressure

LUNDEEN, L. S., Alena HAVELKOVÁ, L. A. BEATY, M. VOTH, Jarmila SIEGELOVÁ et. al.

Basic information

Original name

Day-to-day variation in day-night ratio of blood pressure

Authors

LUNDEEN, L. S., Alena HAVELKOVÁ, L. A. BEATY, M. VOTH, Jarmila SIEGELOVÁ, K. OTSUKA and G. CORNELISSEN

Edition

Brno, Noninvasive methods in cardiology 2019, p. 41-50, 2019

Publisher

Masarykova univerzita

Other information

Language

English

Type of outcome

Stať ve sborníku

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Organization unit

Faculty of Medicine

ISBN

978-80-210-9442-0

Abstract

V originále

Ambulatory blood pressure monitoring (ABPM) is too often limited to only 24 hours. Too often, the data thus collected are analyzed by computing daytime, nighttime, and 24-hour means rather than assessing the circadian variation by cosinor. The day-night ratio (DNR) based on these mean values is then used for a classification in terms of “dipping”. Earlier work showed the large day-today variability in the circadian pattern of blood pressure (BP) observed in both normotensive and hypertensive individuals. Using data from the Brno database of 7-day/24-hour ABPM records, the extent of reproducibility of a classification in terms of “dipping” is examined herein by comparing results obtained on a daily basis versus those based on the entire record, used as reference. The percentage agreement for systolic (S) and diastolic (D) BP averaged (mean ± SE) 54.43 ± 1.37% and 59.09 ± 1.74%, respectively. Individually, the range in daily DNR values averaged 19.85 ± 0.58 and 26.48 ± 0.87 for SBP and DBP, respectively. These results suggest that the DNR computed from a 24-hour ABPM is not sufficiently reliable.

Citovat

LUNDEEN, L. S., Alena HAVELKOVÁ, L. A. BEATY, M. VOTH, Jarmila SIEGELOVÁ, K. OTSUKA and G. CORNELISSEN. Day-to-day variation in day-night ratio of blood pressure. In Cornélissen G., Siegelová J., Dobšák P. Noninvasive methods in cardiology 2019. Brno: Masarykova univerzita, 2019, p. 41-50. ISBN 978-80-210-9442-0.

@inproceedings{1755716,
   author = {Lundeen, L. S. and Havelková, Alena and Beaty, L. A. and Voth, M. and Siegelová, Jarmila and Otsuka, K. and Cornelissen, G.},
   address = {Brno},
   booktitle = {Noninvasive methods in cardiology 2019},
   editor = {Cornélissen G., Siegelová J., Dobšák P.},
   language = {eng},
   location = {Brno},
   isbn = {978-80-210-9442-0},
   pages = {41-50},
   publisher = {Masarykova univerzita},
   title = {Day-to-day variation in day-night ratio of blood pressure},
   url = {https://is.muni.cz/do/med/noninvasive_methods_in_cardiology/noninvasive_methods_in_cardiology_2019.pdf},
   year = {2019}
}

TY  - JOUR
ID  - 1755716
AU  - Lundeen, L. S. - Havelková, Alena - Beaty, L. A. - Voth, M. - Siegelová, Jarmila - Otsuka, K. - Cornelissen, G.
PY  - 2019
TI  - Day-to-day variation in day-night ratio of blood pressure
PB  - Masarykova univerzita
CY  - Brno
SN  - 9788021094420
UR  - https://is.muni.cz/do/med/noninvasive_methods_in_cardiology/noninvasive_methods_in_cardiology_2019.pdf
N2  - Ambulatory blood pressure monitoring (ABPM) is too often limited to only 24 hours. Too often, the data thus collected are analyzed by computing daytime, nighttime, and 24-hour means rather than assessing the circadian variation by cosinor. The day-night ratio (DNR) based on these mean values is then used for a classification in terms of “dipping”. Earlier work showed the large day-today variability in the circadian pattern of blood pressure (BP) observed in both normotensive and hypertensive individuals. Using data from the Brno database of 7-day/24-hour ABPM records, the extent of reproducibility of a classification in terms of “dipping” is examined herein by comparing results obtained on a daily basis versus those based on the entire record, used as reference. The percentage agreement for systolic (S) and diastolic (D) BP averaged (mean ± SE) 54.43 ± 1.37% and 59.09 ± 1.74%, respectively. Individually, the range in daily DNR values averaged 19.85 ± 0.58 and 26.48 ± 0.87 for SBP and DBP, respectively. These results suggest that the DNR computed from a 24-hour ABPM is not sufficiently reliable.
ER  -

LUNDEEN, L. S., Alena HAVELKOVÁ, L. A. BEATY, M. VOTH, Jarmila SIEGELOVÁ, K. OTSUKA and G. CORNELISSEN. Day-to-day variation in day-night ratio of blood pressure. In Cornélissen G., Siegelová J., Dobšák P. \textit{Noninvasive methods in cardiology 2019}. Brno: Masarykova univerzita, 2019, p.~41-50. ISBN~978-80-210-9442-0.

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