For health care workers returning from a warfare environment, threat of personal harm may be the most predictive factor in determining those with subsequent PTSD.

Preoperative depressive symptoms were a significant contributor to patient satisfaction with visual quality after LASIK.

No abstract

When human beings were first designed, the designer must have considered that someday they would live in a society in which they were in constant and close proximity to electrical energy. Human skin is a naturally protective barrier to the flow of electricity, but still, under the right conditions, humans can become part of the electric technology and electrical processes that touch every aspect of our daily lives. Commercially generated electricity has been a part of our world for over 100 years. Injury from electrical contact can run the gamut from momentary pain to extensive physical damage that can impair multiple‐organ systems. Primary mechanisms of electrical injury include thermal injury from the electrical energy imparted during the shock, ventricular fibrillation caused when pacing is interrupted by electrical current flow, and electrically induced respiratory arrest. Secondary injury includes soft tissue damage and broken bones resultant from falls and impacts caused by electrically induced muscle contractions. Other secondary injuries caused by electric arcs include flash burns and blunt force trauma. Although electric shock has been studied for well over a century, unexplained responses to electrical contacts still remain, which lead researchers to conclude that, given the complexity and variability of the human machine, human response to electrical energy is far more complex than was originally believed.