F-CLINICAL ASPECTS OF SPINAL CORD INJURIES
335
hands. (Note that sweating is less pronounced on the left arm where the sphygnomano-
meter cuff compressed the blood circulation.) In lesions of Ty-8 reflex sweating was not
found to be a regular component of the autonomic response as compared with high cord
lesions, especially when the transverse lesion was associated with a longitudinal lesion.
FIG. 151. Complete lesion below
T$.
Electrocardiograms before (A and B) and during
(C and D) distension of the bladder, in a patient with a high lesion. A and C lead II,
B and D lead IVR. Notice the slowing of the heart rate and the increase in size of the U
wave especially in lead IVR. (From L.Guttmann and D.Whitteridge (1947),
Brain,
70, 361.)
If present in these cases, it involved the distal part of the trunk and the lower limbs. In
some subjects the part of the spinal sudomotor centres at the cervico-thoracic and thoraco-
lumbar junctions respectively may show a specially marked degree of hyperactivity result
ing in a rapid and exaggerated sudomotor response to bladder distension or any other
intrinsic or extrinsic stimulus. This explains the band-like area of hyperhidrosis found
