Objective To compare the safety and effectiveness of power peripherally inserted central catheters (Power PICC) and double cavity central venous catheter (CVC) application in intensive care unit (ICU). Methods 458 cases were reviewed during January to September in 2014 and divided into two groups: Power PICC group (245 cases) and CVC group (213 cases) , and average retention time, successful rate of inserting catheter and the incidence of complications were compared. Results The average retention time of Power PICC group was (21.6±5.8) days which was longer than (13.1±3.4) days of CVC group (t=2.234, P <0.05). No statistics difference of successful rate between two groups (P>0.05). No significant difference for the total incidence of complications between two groups as 14.69% (36/245) and 19.72%(42/213)(P>0.05). No significant difference for the total incidence of complications in the operation time between two groups as 5.31% (13/245) and 4.23% (9/213)(P>0.05). But rate of catheter malposition for Power PICC group [ 2.86% (7/245) ] was higher than CVC group 0 (X2=4.428, P <0.05). Rate of the total incidence of complications in the retention time Power PICC group [ 9.39%(23/245) ] was lower than CVC group [ 15.96%(33/213)(P<0.05). And rate of catheter related blood stream infection of CVC group [3.29%(7/213)] was much more higher than Power PICC group (0)(X2=6.139,P<0.05). Conclusions Power PICC and CVC are both applicable for ICU, and Power PICC has more advantage regarding safety and effectiveness than CVC and can be one replacement for CVC.

Purpose To explore the value of 320 row dynamic volume CT angiography in the preoperative assessment of juvenile nasopharyngeal angiofibroma (JNA) and in determining feeding arteries.Materials and Methods The imaging data of 18 cases with JNA proved by surgery and pathology and examined by 320 row dynamic volume CT were analyzed retrospectively.The imaging staging and feeding artery of tumors were determined.Results Most tumors (17/18) showed heterogeneous enhancement in the early stage of enhancement.With the extension of time,the enhancement scope of lesions expended.The time-density curve (TDC) of 11 cases demonstrated rapid ascending and rapid descending after injecting contrast,while 7 cases showed continuous increasing.The blood supply of all tumors included the external carotid artery system of the affected side and showed a close relationship with tumor staging.With the increase of tumor stage,the number of feeding arteries increased (r=0.858,P＜0.05).The feeding arteries of stage Ⅱc and stage Ⅲ tumors included ipsilateral maxillary artery and ascending pharyngeal artery.Besides,the effective radiation dose of 320 row CT angiography for searching arteries [(3.30±0.08) mSv]was less than that of DSA [(7.62±2.39) mSv] (t=-7.98,P＜0.05).Conclusion The 320 row dynamic volume CT imaging of JNA has certain characteristics,which can display the blood supply artery and accurate staging of tumors,thus it has important value in preoperative evaluation of JNA.