In order to bring you the best possible user experience, this site uses Javascript. If you are seeing this message, it is likely that the Javascript option in your browser is disabled. For optimal viewing of this site, please ensure that Javascript is enabled for your browser.

The free consultation period for this content is over.

It is now only available year-round to EAPC Ivory (& above) Members, Fellows of the ESC and Young combined Members

Evaluation of the relationship between circadian blood pressure variation and left atrial strain measured by two-dimensional Speckle Tracking in patients admitted for acute coronary syndrome

Session Poster Session III - Friday 08:30 - 12:30

Speaker Macarena Cano-Garcia

Event : ESC Preventive Cardiology (Formerly EuroPrevent) 2015

  • Topic : hypertension
  • Sub-topic : Hypertension
  • Session type : Poster Session

Authors : M Cano-Garcia (Malaga,ES), JA Cano-Nieto (Malaga,ES), C Lara-Garcia (Malaga,ES), M Mancisidor Urkizal (Malaga,ES), JL Delgado-Prieto (Malaga,ES), M De Mora-Martin (Malaga,ES)

Authors:
M Cano-Garcia1 , JA Cano-Nieto1 , C Lara-Garcia1 , M Mancisidor Urkizal1 , JL Delgado-Prieto1 , M De Mora-Martin1 , 1Regional University Hospital Carlos Haya, Cardiology - Malaga - Spain ,

Citation:

Introduction/aims: Blood pressure(BP)usually fluctu­ates during the 24-hour circadian rhythm.Thus,the mean blood pressure values are 10-20% lower during the night,com­pared to daytime measurement.This condition is called "the dipper" change.In contrast,non-dippers are defined as the pa­tients without these diurnal fluctuations in blood pressure.That diurnal fluctuation of BP could affect left atrial function.This study was designed in order to investigate the effects of dipper and non-dipper status on left atrial fuction using strain imaging in patients admitted for acute coronary syndrome.

Methods: Patients hospitalized for acute coronary syndrome were enrolled in this study from September 2013 to July 2014. During hospitalization,echocardiography and 24-hour blood pressure measurement was performed in all patients.Patients were classified as non-dippers when, during night time, they had a blood pressure decrease of less than 10%.In the echocardiography,we measured left atrial size by volume 3D.Strain of the left atrium was measured during late systole.

Results: 46 patients hospitalized for acute coronary syndrome,aged between 42-75 years(mean age 63.17±9.53) were enrolled in this study. Out of 46 patients, 12 were dippers and 34 non-dippers. 75% were males(dippers 100% vs non-dippers 70.5%,p=0.032).71.7% were previously diagnosed of hypertension (75%vs70.5%,p=0.548),41.3% had diabetes(25%vs47.05%,p=0.161),63.04% dyslipidemia (75%vs50.8%,p=0.261),13.04% atrial fibrillation(0%vs17.64%,p=0.144)and 39.1% history of ischemic heart disease (40%vs35.2%,p=0.288).33 patients were admitted for Non-STEMI (75%vs70.5%,p=0.543)and 13 for STEMI (25%vs29.41%, p=0.490).Systolic and diastolic blood pressure (24 hour, daytime and night time)and variability were higher in patients with non -dipper pattern than patients with dipper pattern.In the echocardiography,left atrial diastolic and systolic volume by echocardiography 3D was higher in non-dipper pattern than dipper pattern(diastolic volume 19.95vs29.56,p=0.029; systolic volume 38.56vs46.68,p=0.049).Mean peak left atrial strain was higher in non-dipper pattern than dipper pattern (21.2±4.5%vs.25.5±6.1%,p =0.042).

 Conclusions: In our study the presence of a non-dipper pattern in patients with acute coronary syndrome results in increased filling pressures and increased left atrial size.Left atrial strain was higher in non-dipper patients, which demonstrate exaggerated reservoir and booster pump function in these patients.These methods are simple and sensitive for the early detection of subtle changes in the left atrial function.

Members get more

Join now
  • 1ESC Professional Members – access all resources from general ESC events 
  • 2ESC Association Members (Ivory, Silver, Gold) – access your Association’s resources
  • 3Under 40 or in training - with a Combined Membership, access all resources
Join now

Our sponsors

ESC 365 is supported by Bayer, Boehringer Ingelheim and Lilly Alliance, Bristol-Myers Squibb and Pfizer Alliance, Novartis Pharma AG and Vifor Pharma in the form of educational grants. The sponsors were not involved in the development of this platform and had no influence on its content.

logo esc

Our mission: To reduce the burden of cardiovascular disease

Who we are