Ghione S
Hypertension-associated hypalgesia: Evidence in experimental
animals and humans, pathophysiological mechanisms, and potential
clinical consequences
Hypertens
(Sep) 28:494-504 1996

Hypalgesia can be documented in both humans and rats with hypotension, and
may be related to baroreflex modulation of nociception. The clinical
implication may be a higher incidence of silent myocardial ischemia and
infarction in hypertensives.
This is a review article. The full text of the abstract is available from the
AHA at:
this site
.