"importance is heightened" is a valid and usable sentence in written English.
You can use it to emphasize the importance of a certain idea, situation, or concept. For example: "The importance of following safety precautions is heightened when working with hazardous materials."
East Staffordshire's strategic importance was heightened by its position at the boundary of Royalist and Parliamentarian garrisons in the region.
This importance, furthermore, is heightened in patients with advanced brain cancer, a disease that may affect the capacities that make patients unique, such as their personality and memory.
Therefore the importance of the catch is heightened, hands can get tense and opportunities go begging.
The importance of these problems is heightened by the increasing use of human papillomavirus virus (HPV) testing for cervical cancer screening.
The importance of the findings is heightened by the exaggeration of beta synchrony at basal ganglia and cortical levels evident in Parkinson's disease, a condition typified by the impairment of voluntary movement [14].
The importance of these data is heightened when one considers the outcome of our linkage and functional studies of Sipa1 in a murine population [ 12, 13, 20], coupled with consideration of the known physiologic functions of SIPA1.
For some sufferers, acrophobia may come from an inability to perceive visual and spatial cues at great heights, where the importance of such information is heightened.
Peer relationships increase in both importance and complexity, and self consciousness is heightened.
The single most important contribution that NASA research has made to the understanding of bone deterioration in osteoporosis is heightened awareness of the importance of gravity, activity, and biomechanics that is, the mechanical basis of biological activity— in bone remodeling.
"And therefore the importance of taking actions that are beneficial to others is heightened.
