With the development of HIS/RIS(Hospital/Radiolog y Information System), it is very important to study the HL7(Health Level Seven) Sta ndard for electronic data exchange in healthcare environments. Firstly, in this paper, the history, development goal and conceptions of HL7 are introduced. Secondly, its applications and auto-realization technologies are presented. Then, the problems which exist in the standard and the difficulties of HL7 in China are ana lyzed. Finally, some helpful suggestions about the development of HL7 in China are proposed.

Objective:To investigate the clinical efficacy of percutaneous endoscopic lumbar discectomy (PELD) with the aid of neurophysiological monitoring under general anesthesia.Methods:From August 2016 to October 2019, 58 patients underwent PELD under general anesthesia were selected in our hospital; 30 were via transformational approach and 28 were via interlaminar approach. The whole operative procedures were performed under continuous monitoring of spontaneous electromyography (SEMG), and the peak value, waveform and motor unit of SEMG at the surgical side were observed. The clinical outcomes were evaluated by visual analogue scale (VAS) and Oswestry disability index (ODI).Results:PELD was successfully performed in all 58 patients. Abnormal SEMG reactions were recorded in 8 patients (13.8%), manifested as clustered or frequent high amplitude action potentials; 5 patients (16.7%, 5/30) were via transformational approach and 3 (10.7%, 3/28) were via interlaminar approach. Two patients relapsed at 3 and 6 weeks after surgery, respectively; one was treated with PELD again and the other one was treated with lumbar fusion and instrument fixation. The pain at the lumbago and leg was alleviated obviously after surgery in the 56 patients; the VAS scores were 7.43±1.32, 2.55±0.87 and 1.59±0.87 before surgery, and 3 d and 3 months after surgery, respectively, with significant differences ( P<0.05); the mean ODI before surgery and 3 months after surgery were 67.36±7.13 and 12.39±5.48, respectively, with significant difference ( P <0.05). Conclusion:PELD with the aid of neurophysiological monitoring under general anesthesia is safe and reliable, which can achieve good clinical efficacy.