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Poster Session III

Abstract 545: Modification Over Time of Pulse Wave Velocity Parallel to Changes in Both Office and 24h-ambulatory Peripheral BP as well as Aortic BP

Anna Oliveras, Julián Segura, Carmen Suárez, Luis García-Ortiz, María Abad, Manuel Gómez-Marcos, Laia Sans Atxer, Luis M Ruilope, Alejandro de la Sierra
Hypertension. 2014;64:A545
Anna Oliveras
Hosp Universitari del Mar, Barcelona, Spain
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Julián Segura
Hypertension Unit, Hosp 12 de Octubre, Madrid, Spain
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Carmen Suárez
Hosp La Princesa, Madrid, Spain
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Luis García-Ortiz
Health Cntr La Alamedilla,, Salamanca, Spain
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María Abad
Hosp Clínico San Carlos, Madrid, Spain
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Manuel Gómez-Marcos
Health Cntr La Alamedilla,, Salamanca, Spain
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Laia Sans Atxer
Hosp Universitari del Mar, Barcelona, Spain
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Luis M Ruilope
Hypertension Unit, Hosp 12 de Octubre,, Madrid, Spain
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Alejandro de la Sierra
Hosp Mútua Terrassa, Univ of Barcelona, Barcelona, Spain
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Abstract

Aim: to assess the relationship of changes in pulse wave velocity (PWV), a marker of target organ damage, with the variation in BP over time, as assessed by three different methods of measurement: office and 24h-ambulatory peripheral BP as well as aortic BP.

Methods: Observational prospective study in hypertensive subjects with impaired glucose metabolism consecutively recruited from Spanish Hypertension Units. Aortic BP and carotid-femoral PWV were evaluated by radial applanation tonometry (Sphygmocor®) at baseline (b) and after 12 months of follow-up (fu). Peripheral BP measurements were also recorded at baseline and at 12 months follow-up: office BP was obtained as the average of triplicate measurements taken at 1 min-intervals after 5 min of seated rest, using validated oscillometric devices; 24h-ambulatory BP recordings were taken with a validated device (Spacelabs®-90207) at 20-minute intervals throughout both the self-reported awake and asleep periods. Clinical and anthropometric features were also recorded.

PWV variation (Δ) over time was calculated as follows: Δ PWV= [(PWVfu - PWVb) / PWVb] x 100. BP variation over time was calculated with the same formula applied to BP values obtained with the different measurement techniques.

Correlations (Spearman “Rho”) of Δ PWV and Δ BP were calculated.

Results: n=209 patients; mean age: 61.8 ± 11.2 y; 39% (81 of 209) were female; 80% (167 of 209) had type 2 diabetes. Other risk factors: hypertension: 100%; dyslipidemia: 69% (144 of 209); smokers: 13% (28 of 209); body mass index: 30.9 ± 4.4 Kg/m2. Baseline office systolic/diastolic BP (mmHg): oSBP = 143 ± 20; oDBP = 82 ± 12. Follow-up office systolic/diastolic BP (mmHg): oSBP = 136 ± 20; oDBP = 79 ± 12. Baseline PWV: 10.01 ± 3.5 m/s. Follow-up PWV: 10.19 ± 3.21 m/s.

Δ PWV correlated with: Δ oSBP (Rho=0.212; p=0.002), Δ 24h-SBP (Rho=0.254; p<0.001), Δ daytime-BP (Rho=0.232; p=0.001), Δ nighttime-BP (Rho=0.320; p<0.001) and Δ aortic-SBP (Rho=0.320; p<0.001).

Conclusion: Modification over time of PWV, a marker of target organ damage, parallel to changes in systolic BP, both office and 24h-ambulatory peripheral BP variation as well as aortic BP variation, at 12 months of follow-up. Among them, aortic SBP and nighttime peripheral SBP both showed the best correlation.

  • arterial stiffness
  • pulse wave velocity
  • aortic blood pressure
  • Author Disclosures: A. Oliveras: None. J. Segura: None. C. Suárez: None. L. García-Ortiz: None. M. Abad: None. M. Gómez-Marcos: None. L. Sans Atxer: None. L.M. Ruilope: None. A. de la Sierra: None.

  • © 2014 by American Heart Association, Inc.
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    Abstract 545: Modification Over Time of Pulse Wave Velocity Parallel to Changes in Both Office and 24h-ambulatory Peripheral BP as well as Aortic BP
    Anna Oliveras, Julián Segura, Carmen Suárez, Luis García-Ortiz, María Abad, Manuel Gómez-Marcos, Laia Sans Atxer, Luis M Ruilope and Alejandro de la Sierra
    Hypertension. 2014;64:A545, originally published February 5, 2015

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    Abstract 545: Modification Over Time of Pulse Wave Velocity Parallel to Changes in Both Office and 24h-ambulatory Peripheral BP as well as Aortic BP
    Anna Oliveras, Julián Segura, Carmen Suárez, Luis García-Ortiz, María Abad, Manuel Gómez-Marcos, Laia Sans Atxer, Luis M Ruilope and Alejandro de la Sierra
    Hypertension. 2014;64:A545, originally published February 5, 2015
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