Comparison of the left atrial appendage flow velocities between patients with dipper versus nondipper hypertension

Echocardiography
Ferhat Kumak, Hasan Gungor

Abstract

In this study, left atrial appendage (LAA) flow velocities of dipper and nondipper hypertensive patients were compared with normal subjects. Twenty-three patients with nondipper hypertension (NDH), 25 patients with dipper hypertension (DH), and 25 control subjects with comparable age, gender, and body mass indices were enrolled in the study. A detailed history, physical examination, and routine laboratory tests were obtained on all participants. Standard transthoracic echocardiographic examinations were performed on each subject. In addition, LAAs of all patients were visualized using transesophageal echocardiography. LAA filling and ejection velocities were measured using pulsed-wave Doppler with the sample volume placed in proximal third of the LAA. The mean LAA ejection velocity in patients with NDH (47.7 + 13.0 cm/sec) was found to be significantly lower relative to the DH (66.3 + 12.9 cm/sec) and the control group (81.7 + 8.0 cm/sec) (P < 0.001). The mean LAA filling velocity in patients with NDH (41.7 + 14.7 cm/sec) was also significantly lower relative to those observed in the DH 58.8 + 9.2 cm/sec) and the control group (67.2 + 7.9 cm/sec) (P<0.001). In NDH patients, LAA filling and ejection flow rates are decreased rela...Continue Reading

References

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Citations

Feb 20, 2016·Clinical Hypertension·Jae-Hwan Lee, Jae-Hyeong Park
Feb 13, 2014·Experimental and Therapeutic Medicine·Huan ZhengMing Luo

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