Objective To evaluate the value of PLD associated with O 3 injection for the treatment of lumbar disc heniation.Methods Lateral decubitus position on healthy side under the direction of DSA, a working pipe was inserted from the back lateral way to damage the disc contents through multiple angles followed by extirpation of the nucleus pulposus and then injecting O 2-O 3 10 ml into the lumbar disc space and near by area of the inter vertebral foramina. As for patients with L4-5 and L5-S1 protrusions the main lumbar discs can be treated in the same way, but for another minor one, the injection of O 2-O 3 10 ml into the lumbar disc and the nearby intervertebral foramina and ethanol through a 21G needle would be properly promising. Results Puncture and technical opertaion were performed successfully in all the patients with excellent results in 63, good in 27, and poor in 10. 120 cases with injection of O 2-O 3 into the lumbar discs showed the figure of lumbar space displaying clear in 37 cases, less clear in 35 cases, only gas entering lumbar disc at the needling point with lumbar space displaying unclear in 30 cases and lots of gas entering the front space of canalis vertebralis cavitas epiduralis in 18 cases. Conclusions PLD associated with O 3 injection is the advantageous supplement mutually posscessing safety and efficancy.

Objective To explore the strategies of using psychological crisis intervention in public emergencies.Methods In the early stage,psychological crisis intervention concepts and behavioral responses were formed through literature research and qualitative research methods.Use three rounds of Delphi for expert advice.Three indexes including positive coefficient,authority and coordination were used to test the reliability of expert consultation.Results Overall,it passed 239 out of 269 entries.The first round passed item 210,modified item 18,no consensus item 41;In the second round,8 new entries were added,and 22 entries were deleted through 24 entries.In the third round,there were 5 entries and 16 entries were deleted.The authority coefficient was 0.859,indicating that the experts were very familiar with the items.The coordination coefficient of three rounds of consultations were 0.464,0.696,and 0.407 (P＜0.001)respectively,showing that the coordination degree of experts was excellent,the credibility of feedback was high,and results were highly reliable.Conclusions The strategies of field psychological crisis intervention for public emergencies developed in this study received the consensus by domestic psychological crisis intervention experts,it is will provide a basis for systematic,comprehensive and effective guidance for this work.