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Evaluation of Atrial Electromechanical Coupling Times in Hemodialysis Patients
Author(s) -
Karavelioğlu Yusuf,
Karapınar Hekim,
Özkurt Sultan,
Sarıkaya Savas,
Küçükdurmaz Zekeriya,
Arısoy Arif,
Kurt Recep,
Yılmaz Ahmet,
Kaya Mehmet G.
Publication year - 2014
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/echo.12422
Subject(s) - medicine , cardiology , diastole , tricuspid valve , blood pressure
Background There are no definite data about the atrial electromechanical coupling times ( AEMCT ) in patients with end stage renal failure ( ESRF ). The aim of this study was to investigate the AEMCT in ESRF patients without hypertension ( HT ) and diabetes mellitus. Methods The study population consisted of 47 normotensive, nondiabetic ESRF patients and 41 healthy age/gender‐matched control subjects. The time intervals from the onset of P‐wave on the surface electrocardiogram to the beginning of late diastolic A‐wave ( PA ) were obtained from the lateral mitral annulus ( PA ‐lateral, maximum AEMCT ), septal annulus ( PA ‐septal), and tricuspid lateral annulus ( PA ‐tricuspid). Time intervals were corrected according to the heart rate. The difference between PA ‐septal and PA ‐tricuspid (right AEMCT ), PA ‐lateral and PA ‐septal (left AEMCT ), and PA ‐lateral and PA ‐tricuspid (inter AEMCT ) were calculated. Corrected time intervals were used for calculations. Results Groups were similar for age (52 ± 12.3 vs. 49.9 ± 6 years, P > 0.05) and gender. Maximum (61 ± 20 vs. 47 ± 13 ms; P < 0.001) AEMCT was significantly higher in the patients compared with the control group, but septal and tricuspid EMCT were not different (P > 0.05). Both inter‐atrial (37 ± 21 vs. 24 ± 16 ms, P = 0.002) and left atrial (25 ± 18 vs. 12 ± 9 ms; P < 0.001) EMCT were significantly higher in patients when compared with the controls but intra‐right atrial EMCT was not different. Conclusions Atrial conduction parameters such as maximal EMCT , left atrial, and inter‐atrial EMCT s were prolonged in ESRF patients. This prolongation is seen in ESRF patients even in the absence of factors that affect atrial coupling, such as HT .