Head Turning-Induced Hypotension in Elderly People
Figure 1
Distribution of maximal systolic blood pressure drops due to head rotation in the patient group.
Notes.
X-axis; the maximal systolic blood pressure drop due to head rotation, Y-axis; the number of patients that met the specified systolic blood pressure drop.
The systolic blood pressure drops of 20-29 mmHg are due to left head rotation in 3 patients, right head rotation in 4 patients and hyperextension in 7 patients.
The systolic blood pressure drops of 30-39 mmHg are due to left head rotation in 5 patients, right head rotation in 5 patients and hyperextension in 6 patients.
The systolic blood pressure drops of 40-49 mmHg are due to left head rotation in 2 patients, right head rotation in 1 patients and hyperextension in 4 patients.
The systolic blood pressure drops >50 mmHg are due to left head rotation in 4 patients.