28 November 2022>: Clinical Research
Ultrasonographic Carotid Artery Flow Measurements as Predictors of Spinal Anesthesia-Induced Hypotension in Elderly Patients: A Prospective Observational Study
Hyae-Jin Kim 1ABEF , Ah-Reum Cho 12ACDE* , Hanbit Lee 1ABEF* , Haekyu Kim 12DEF , Jae-Young Kwon 12DEF , Hyeon-Jeong Lee 12DEF , Christine Kang 3BE , Soeun Jeon 4BDEF , Nara Kim 1BEDOI: 10.12659/MSM.938714
Med Sci Monit 2022; 28:e938714
Figure 1 Corrected carotid flow time was calculated by the measurement of interval between the start of systolic upstroke and the dicrotic notch of the spectral Doppler waveform: a) systole time; b) cycle time. Carotid blood flow was calculated by the measurement of velocity time integral tracing of the c) spectral Doppler signal and d) carotid diameter.