Carotid Doppler Blood Flow Measurement During CPR:
A First in Man Study
A First in Man Study
 |
Figure. Image of the left common carotid artery of subject 1.Pulse-wave tracing of the artery during manual chest compressions is displayed below. |
OBJECTIVE
Objective was to determine the feasibility of using ultrasound to measure blood flow on patients with cardiac arrest.
METHODS
A prospective cohort study included patients receiving ongoing manual chest compressions for cardiac arrest. Scan protocol involved physicians recording blood flow over the common carotid arteries during chest compressions with color flow and Doppler using a portable ultrasound machine. Measurements included duration of scan time, and the median values for peak systolic (PSV), end-diastolic (EDV) and mean diastolic (MDV) carotid blood flow velocities.
RESULTS
A total of 15 patients (78% of attempted) had ultrasound imaging saved. Most (n=10, 66%) had scanning times greater than 5min (median 5min 59s). Median PSV was 67cms, median EDV was 18cms, and median MDV was 14cms.
CONCLUSIONS
Ultrasound measurement of common carotid artery blood flow during CPR is feasible. Further studies are necessary to correlate carotid blood flow measures to other hemodynamic measures and its effects on patient outcomes.
Reference
Adedipe A, Fly D, Schwitz S, Jorgenson D, Duric H, Sayre M, Nichol G.
Carotid Doppler blood flow measurement during cardiopulmonary resuscitation is feasible: A first in man study. Resuscitation. 2015
No comments:
Post a Comment