Mitral annular velocity in patients with postoperative atrial fibrillation

Autor: Münevver Dereli, Yalin Tolga Yaylali, Ibrahim Susam, Mustafa Saçar
Rok vydání: 2012
Předmět:
Male
heart atrium fibrillation
heart disease
Doppler echocardiography
postoperative period
Postoperative Complications
coronary artery blood flow
Mitral valve
Atrial Fibrillation
Sinus rhythm
Prospective Studies
Coronary Artery Bypass
Prospective cohort study
Myocardial Stunning
clinical article
left atrial dysfunction
medicine.diagnostic_test
adult
article
mitral annular velocity
Atrial fibrillation
Middle Aged
Postoperative atrial fibrillation
Echocardiography
Doppler
blood flow velocity
blood vessel wall
female
medicine.anatomical_structure
priority journal
Bypass surgery
Anesthesia
cardiovascular system
Cardiology
Mitral Valve
Female
medicine.symptom
prospective study
velocity
medicine.medical_specialty
Diastole
tissue Doppler imaging
heart ventricle septum
transthoracic echocardiography
coronary artery bypass graft
Internal medicine
medicine
Humans
human
Heart Atria
cardiovascular diseases
Atrial tachycardia
Aged
business.industry
medicine.disease
Doppler echography
heart left ventricle endsystolic volume
Surgery
business
chronic obstructive lung disease
heart left ventricle enddiastolic volume
heart left ventricle ejection fraction
Zdroj: Journal of Surgical Research. 178:92-95
ISSN: 0022-4804
DOI: 10.1016/j.jss.2012.01.051
Popis: Background: Subclinical atrial stunning (AS) (left atrial dysfunction) may increase vulnerability to oxidative and inflammatory stressors, thus increasing the likelihood of postoperative supraventricular arrhythmias, especially atrial fibrillation (AF). Evaluation of mitral annular velocities by tissue Doppler imaging (TDI) may be useful in seeking subclinical AS. This prospective study aimed to evaluate the relationship between atrial fibrillation after bypass surgery and presurgical determination of subclinical AS by assessing mitral annular velocities by TDI. Methods: We enrolled patients who underwent coronary artery bypass graft (CABG) surgery into this prospective study. Inclusion criteria were sinus rhythm and a negative history of atrial tachycardia during the previous 3 mo. An experienced cardiologist performed transthoracic echocardiography in all patients. We recorded standard two-dimensional, mitral inflow conventional Doppler interrogation and TDI pulsed wave data from the lateral and septal annulus. All patients underwent CABG surgery at our Cardiovascular Surgery Unit. Patients were divided into two groups based on their postoperative AF status: group 1 patients had postoperative AF and group 2 patients did not. Results: This study included 44 patients. Age and the presence of chronic obstructive pulmonary disease were the only two significantly different parameters among clinical characteristics between groups. Echocardiographic findings that were statistically significantly different between groups were as follows: lateral A diastolic mitral annular velocity, group 1: 0.11 ± 0.19 ms-1 versus group 2: 0.08 ± 0.19 ms-1 (P = 0.001); lateral E diastolic mitral annular velocity, group 1: 0.69 ± 0.24 ms-1 versus group 2: 0.62 ± 0.31 ms-1 (P = 0.016); Septal E diastolic mitral annular velocity, group 1: 0.05 ± 0.01 ms-1 versus group 2: 0.04 ± 0.01 ms-1 (P = 0.033); septal A diastolic mitral annular velocity, group 1: 0.08 ± 0.02 ms-1 versus group 2: 0.05 ± 0.02 ms-1 (P = 0.005). Conclusions: There is no relationship between AF after CABG surgery and preexisting subclinical AS determined with mitral annular velocities by TDI. Preoperative appropriate prophylactic treatment should be administered to all patients. © 2012 Elsevier Inc. All rights reserved.
Databáze: OpenAIRE
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