Effect of air bag on the outcome of abdominal withdrawal reflex test / 中国比较医学杂志

Objective To optimize the preparation of air bag materials for abdominal withdrawal reflex test.Methods To measure the diameters of different pressue-air bags by digital vernier caliper and X ray imaging.Using the pain threshold (3 points) as a criterion to test the pressure values of different air bags in the rats with corresponding visceral pain sensitivity.Results With the increasing pressure, the changes of the diameter of round latex balloon were uniform and gentle, and could meet the pressure range used in the experiment (20~80 mmHg).The threshold of visceral pain in rats was near the nociceptive stimulus value,and would not cause irreversible damage to the rat intestinal tract.Conclusions Air bag made from round latrex ballon is an ideal tool to be used in abdominal withdrawal reflex test in rats.

A Case of Air-bag Associated Severe Ocular Injury

Air-bags have received widespread support as an effective means of enhancing automotive safety, and they are becoming more common as standard automobile equipment on many cars. Although air-bag induced ocular injuries are rare, they present a serious concern because of the possibility of permanent damage or visual impairment. To date, most reports have investigated ocular injury from high velocity motor vehicle accidents and reports of ocular injury from low speed motor vehicle accidents have been rare. We describe a patient who sustained severe ocular injury, including periorbital fracture, hyphema, vitreous hemorrhage, and choroidal rupture of the macular area, due to an inflated air-bag in a low speed motor vehicle accident.

A Case of Airbag Related Ocular Trauma

With the increasing number of air bag-equipped vehicles, there has been a corresponding increase in the incidence of air bag-associated ocular trauma. We encountered a 38 years old man who sustained corneal damage, hyphema, angle recession, medial wall fracture, and visual damage by choroidal rupture of macula due to an inflated air bag in motor vehicle accident and brief review of related literature is presented.

Hyphema, angle recession and macular hemorrhage induced by air bag

Air bag has gained increasing acceptance as a device that reduce serious head and chest injury in vehicle accident. Although air bag reduces incidence and severity of facial and periorbital trauma, the possibility of ocular trauma by air bag inflation itself cannot be trivialized. We experienced a patient who developed hyphema, angle recession and macular hemorrhage after air bag inflation, and reviewed the available literatures regarding this type of injury.