Clinical efficacy of portable probe sterile film used for ultrasound-guided central venous cannulation / 中华麻醉学杂志

ABSTRACT

Objective To evaluate the clinical efficacy of portable probe sterile film used for ultrasound-guided central venous cannulation.Methods One hundred emergency patients of both sexes with lower extremity fractures prepared for ultrasound-guided right internal jugular venous cannulation,aged 18-60 yr,weighing 50-85 kg,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,were divided into 2 groups (n=50 each) by using a random number tableportable probe sterile film group (group P) and sterile glove group (group G).In group P,the ultrasound probe was placed in the portable probe sterile film,and then the sealed film was adhered to the scanning surface without fold or bubble after emptying gas by syringe.In group G,the ultrasound probe was wrapped by disposable medical sterile gloves with the scanning surface coated by coupling agents.The microbiological detection of probe was performed after aseptic processing,and relative sterility was defined as the total number of colonies less than or equal to 5 cfu/cm2.The probe aseptic processing time,puncture and cannulation time and total operation time were recorded.The aseptic qualification of scanning surface and handle was recorded.The clarity (equal to 3 point) of ultrasonic image was assessed and recorded using a 4-point scale.The success of first puncture,first cannulation and total cannulation was recorded.Complications such as bleeding,hematoma and dyspnea were observed simultaneously.Results The aseptic qualification rate of scanning surface was all 100％ in both groups.Compared with group G,the probe aseptic processing time was significantly prolonged,the puncture and cannulation time and total operation time were shortened,the aseptic qualification rate of handle was increased,and the clarity rate of ultrasonic image and success rates of first cannulation and total cannulation were all increased,the incidence of bleeding and hematoma was decreased (P＜0.05 or 0.01),and no significant change was found in the success rate of first puncture in group P (P＞0.05).Conclusion The portable probe sterile film is easy to operate,easy to realize an aseptic condition,has limited influence on the ultrasonic imaging,also can assure successful cannulation and reduce complications,so it is suitable for aseptic processing when used for ultrasound-guided central venous cannulation.