Objective To investigate the clinical features of unintentional injuries in children,and to provide the theoretical basis for preventing and intervening the occurrence. Methods We collected the data of children aged from 0 to 14 years old and hospitalized in the First Affiliated Hospital of Guangxi Medical University from January 2013 to December 2015. Results There were 2286 cases of children including 1507 boys(65. 92%) and 779 girls(34. 08%). The high incidence age was 1 to 3 years with a total of 896 cases(39. 19%). The first five causes of unintentional injuries were burns/scalds 840 cases(36. 71%),fall/drop 464 cases(20. 30%),blunt force injury 290 cases(12. 68%),foreign bodies(in the esophagus,airway, etc) 253 cases(11. 07%),and sharp object injury 153 cases(6. 68%). The unintentional injuries of different age group were varied,for example,the common causes of 1 to 3 years old group were burns /scalds and for-eign bodies(in the esophagus,airway,etc),and the main injuries in 6 to 14 years old group were fall/drop and blunt force. Furthermore, the proportion of unintentional injuries in rural children was 1547 cases (67. 67%),and in the urban children was 739 cases(32. 33%). Unintentional injury with serious conse-quences included burns/scalds 55 cases(26. 96%),sharp object injury 45 cases(22. 06%),burns/scalds 26 cases (12. 75%),blast injury of 23 cases(11. 27%) and fall/drop 20 cases(9. 80%). Disable/sequel hap-pened in 204 cases(8. 92%). Ten cases died(0. 44%) including fall/drop in 4 cases,traffic accident in 3 cases(30%). Conclusion Young children aged 1 to 3 years are the most vulnerable to unintentional inju-ries. Burns/scalds and foreign bodies( in the esophagus,airway,etc) are the most common causes of injuries, and the boys are more common than girls. Moreover,the incidence rate of unintentional trauma in rural chil-dren was higher than that in the urban children. Unintentional injury complicated serious consequences are burns/scalds,sharp object injury,blast injury and fall/drop. Death cases in the majority are fall/drop and traf-fic accident. The key to reduce the occurrence of unintentional injuries is to strengthen propaganda of preven-tion knowledge about the children′s unintentional injuries.

Objective To investigate the impaction of different prostate biopsy strategies on the tumor detection.Methods 214 consecutive men who were highly suspected as prostate cancer were included in this study.TRUS guided prostate biopsy of 13 cores was conducted in each patient.Among these individuals,PSA(total prostate specific antigen) level were among 0.8 ng/ml and 112.3 ng/ml,mean 18.7 ng/ml,of which 203 cases were over 4.0 ng/ml.The prostate volume was between 12.3 ml and 182.5 ml with 61.3 ml of mean.DRE(digital rectal examination) was normal in 173 cases and abnormal in 41 cases.The tumor detection rate for each biopsy core was calculated.The sensitivity of different combinations of biopsy cores(eg.prostate biopsy strategies) was compared with a 13 core biopsy protocol,in which besides the sextant biopsies,the far lateral and mid regions of the gland were also taken,as 8 core and 10 core biopsy.Results Prostate cancers were detected in 77 of 214(36.0%) patients with 13 core biopsy protocol.Of the possible combinations of biopsy cores,10-core biopsy protocol that included cores at the base,mid gland and apex of the prostate with lateral base and mid cores detected 97.4% of cancers.The detection rate of this 10-core biopsy protocol was equivalent to that of the 13 core regional biopsy(P=0.5).Conclusions 10-core biopsy protocol that combines cores at the base,mid gland and apex of the prostate with lateral base and mid cores should be the preferred strategy in early detection of prostate cancer.

Objective To study the multi-slice spiral CT (MSCT) manifestations of septic pulmonary embolism(SPE) in order to get a better understanding of the disease,Methods The MSCT manifestations of 12 patients with septic pulmonary embolism were retrospectively analyzed and compared with chest radiograph.Results Of the 12 patients,Chest radiograph and CT scanning showed multiple peripheral pulmonary nodules in 8 and 12 cases,a feeding vessel sigu(0,9 cases),cavitations(6,10 cases) and wedge-shaped opacities(4,7 cases),focal infiltrates(2,4 cases),air cyst(2,5 cases),pleural lesions (3,6 cases),hilar or mediastinal lymphadenopathy(0,3 cases).Peripheral or subpleural zones were most commonly affected (8,12 cases).CT was more useful in revealing nodules and a feeding vessel sign.Multiplanar reconstructions (MPR),maximum intensity projection (MIP) showed that most of these vessels passed around nodules and wedge-shaped lesions.MPR showed regular nodular margin.Conclusion SPE presents with variable and often nonspecific clinical and radiographic features.MPR and MIP showed the features of nodules and feeding vessels better.The diagnosis is usually suggested by the presence of a predisposing factor,febrile illness,and CT findings of multiple,periphery pulmonary nodules,with orwithout cavitation and a feeding vessel sign.