Objective To explore the effect of quality control circle(QCC) activities for improving the autonomous learning ability of the maxillofacial surgical nurses .Methods Twenty maxillofacial surgical nurses used the steps and methods of QCC activ‐ities .The factors affecting the autonomous learning ability were analyzed and the effective intervention measures were adopted .The activity cycle was 12 months ,including 40 times of theory classes and 40 times of classroom interaction .The scores of nurse autono‐mous learning ability scale ,satisfaction of doctors and patients on surgical nurses were compared between before and after activities . Results The scores of 2 dimensions ,including self motivational belief and self assessment ,after conducting QCC activities were in‐creased compared with before conducting QCC activities ;the doctor′s satisfaction degree and patient′s satisfaction degree were in‐creased ,the differences were statistically significant (P<0 .05) .Conclusion The QCC activities can motivate the working enthusi‐asm and responsibility ,help nurses to increase the autonomous learning ability ,thus enhance the nurses overall quality .

Objective To study the value of cervical length(CL) by transvaginal sonography in the mid-trimester and late-trimester for the prediction of preterm delivery.Methods The CL was measured by transvaginal sonography for 5277 pregnant women between 22-24 weeks and 28-32 weeks gestation,who were prenatal cared and delivered at the First Hospital of Peking University from June 2008 to November 2009.The pregnancy outcomes were followed,and the relationship between CL and preterm delivery and preterm premature rupture of membrane was studied.Results ( 1 ) The incidence of preterm delivery was 5.4％ (289/5370) total,among of them the incidence of therapeutic preterm delivery was 1.7％ (93/5370),spontaneously preterm delivery was 1.2％ (62/5370),and preterm premature rupture of membrane was 2.5 ％ (134/5370).There are 4 cases (4/5370) who occured late abortion.(2) Excluding the 93 women who had therapeutic preterm delivery,the mean CL of 22-24 weeks was ( 38.8±4.0) mm.The relative risk for preterm delivery when the CL＜30 mm was 5.2,when CL＜25 mm,the relative risk was 11.1,and when CL ＜15 mm the relative risk for preterm delivery was 13.8.The average CL during 28-32 weeks of gestation was ( 34.6±4.8) mm,was significantly shorter than that of 22-24 weeks ( P＜0.05 ).During this period the relative risk for preterm delivery when the CL＜30 mm was 6.9,when CL＜25 mm,the relative risk was 11.1,and when CL＜15 mm the relative risk for preterm delivery was 20.0.(3) A CL＜30 mm as the cutoff value for predicting preterm delivery during 22-24 weeks of gestation has only a 3％ sensitivity and 19％ positive predictive value,but had a 99％ specificity and 96％ negative predictive value.The sensitivity,positive predictive value,specificity and negative predictive value for a CL ＜ 30 mm as the cut-off value for predicting preterm delivery during 28-32 weeks of gestation was 33％,21％,95 ％ and 97 ％ respectively.(4) The total number of preterm premature rupture of membrane pregnant women was 134 (2.5％ ),who had a mean CL of (38.4 ±4.7) mm during 22-24 weeks of gestation,was similar with the women without preterm premature rupture of membrane ( PPROM),but during 28-32 weeks of gestation the women who occured PPROM had a mean cervical length of ( 30.6 ± 8.1 ) mm,and was significantly shorter than that of women without PPROM ( 34.7 + 4.6 ) mm.Conclusions ( 1 ) CL in 28-32 weeks of gestation issignificantly shorter than that of in the mid-gestation,but more than 90％ of women has a CL≥30 mm.(2)The shorter the CL is,the greater the relative risk of preterm delivery.According to different CL for clinical consulting objective relative risk could be provide.(3) The CL during 28-32 weeks of gestation can also predict preterm delivery,the sensitivity is obviously better than that of 22-24 weeks of gestation.(4) The CL during 28-32 weeks of gestation is valuable for predicting of PPROM.

Objective To evaluate the accuracy of realtime polymerase chain reaction (PCR) assay in the detection of group B Streptococcus (GBS) in pregnant women. Methods Samples were collected from 1 395 women at 35-37 weeks of gestation from March 1 to December 31, 2009 at three hospitals in Beijing. Samples were obtained from the lower one third vaginal wall and perianal area and tested for GBS using standard culture and PCR. Standard culture and gene analysis for GBS were applied as the gold standard, and the sensitivity and specificity of the rapid assay were determined. Results Of the 1 395 women qualified for PCR testing, 40(2.9%) were identified as GBS positive on the basis of the results of specimen culture, compared to 114 (8.2%) on the basis of PCR assay. The culture was negative and the PCR positive in 77 patients. The results which were not in agreement using the two tests were evaluated by the gene analysis for GBS. Among the 77 samples which were GBS positive by PCR, 66 samples were determined as GBS positive by gene analysis. The sensitivity of the PCR assay was 97.2%(103/106) and specificity was 99.1%(1 278/1 289), the maternal GBS colonization was 7.6%(106/1 395). Conclusions Realtime PCR assay allows rapid and reliable detection of GBS in last trimester with high sensitivity and specificity.

In order to build a standardized training base for dental nurses in Chongqing, explore and improve the dental nursing talent training system, the standardized training and management leading group of dental nurses has established a training program centered on job competence and a clinical competency training center based on simulated dental clinics, which has improved the comprehensive capabilities of dental nursing teachers, implemented the assessment of "equal emphasis on process and results" system, and taken measures to provide comprehensive protection to gradually build the base. After 6 years of construction, the base has completed the training of 139 dental nursing training students, with an average passing rate of 91.21%. Among them, 92.81%(129/139) are engaged in professional dental nursing work, and 14.73%(19/129) have grown into nursing backbones. In the future, it is necessary to further strengthen the standardized training and publicity of dental nurses and expand the scope of radiation.

Objective To investigate the effect of active abdominal compression-decompression cardiopulmonary resuscitation (AACD-CPR) in patients with pre-hospital respiratory and cardiac arrest.Methods Forty-five patients with respiratory and cardiac arrest,and with contraindication of chest compression admitted to Baiyin Central Hospital of Gansu Province from March 2012 to September 2018 were enrolled,and they were divided into two groups according to random number table.AACD-CPR (abdominal compression-decompression group,n =24) and cardiopulmonary resuscitation (CPR) with unarmed abdominal compression (unarmed abdominal pressure group,n =21) were performed respectively.The success rate of rescue was observed in the two groups,and the changes in heart rate (HR),pulse oxygen saturation (SpO2) and blood pressure 30 minutes after CPR in patients with restoration of spontaneous circulation (ROSC) were observed.Results Among the 24 patients in the abdominal compression-decompression group,5 patients (20.83％) had ROSC,and 2 patients (9.52％) had ROSC in 21 patients of the unarmed abdominal pressure group.The success rate of resuscitation in the abdominal compression-decompression group was significantly higher than that in the unarmed abdominal pressure group (P ＜ 0.05).HR of ROSC patients at 30 minutes of CPR in abdominal compression-decompression group was significantly lower than that in unarmed abdominal compression group (bpm:139.45±5.08 vs.147.62±5.24,P ＜ 0.05),and SpO2 and blood pressure were significantly higher than those in unarmed abdominal compression group with significant differences [SpO2:0.92 ± 0.03 vs.0.85 ± 0.03,systolic blood pressure (SBP,mmHg,1 mmHg =0.133 kPa):118.23 ± 3.26 vs.98.51 ± 3.10,diastolic blood pressure (DBP,mmHg):60.10 ± 2.50 vs.56.36 ± 2.45,all P ＜ 0.05].Conclusion The effect of AACD-CPR was superior to that of unarmed abdominal pressure CPR,which had higher application value to rescue patients with respiratory and cardiac arrest with chest pressure contraindication.