Differential tonometry with applanation or indentation procedures under blind conditions gave significantly low indentation readings. It is concluded that IOP postural response depends on arterial and venous vascular changes when subjects move from an erect to a horizontal body position. Blood expulsion ...
The third study used ultrasound to measure paraspinal tissue thickness as a proxy for vertebral rotation. However, the pressure on the ultrasound head was not measured. This is important, as increased pressure could compress tissues and distort readings. Nevertheless, this method could hold promise f...
Reliable ulnar nerve SEPs, hand muscle MEPs and arterial blood pressure readings were obtained after patient was placed in a prone position. A-line malfunction was noted about 15min after incision. Loss of ulnar nerve SEPs and hand muscle MEPs with a cold hand on the right was noticed when...