Table 1.

Findings from Ultrasound, Radiographic Analysis and Transient Vision Loss Measurements Before and After First Adjustment and the Change in Findings

Outcome	Before First Adjustment	After First Adjustment	Change
VA volume, right	162 mL/min	198 mL/min	+36 mL/min Improved
VA volume, left	159 mL/min	172 mL/min	+13 mL/min Improved
VA speed, right	29.8 cm/s	32.4 cm/s	+4.6 cm/s Improved
VA speed, left	27.6 cm/s	26 m/s	–1.6 cm/s Not improved
C1-C2 rotational misalignment	3°	1°	–2 degrees Improved
Transient vision loss	Onset after 4 s in cervical rotation	Onset after 9 s in cervical rotation	+5 s Improved

VA, vertebral artery.