Experience in clinical use of active ultrasonic handpiece with integrated pressure transducer

    

    Abstract

    Experience in clinical use of active ultrasonic handpiece with integrated pressure transducer

    N.E. Temirov, N.N. Temirov

    LLC «Eye Clinic «Lege Аrtis», Rostov-on-Don

    Purpose: Clinical testing of new ultrasonic handpiece with active transducer of pressure Active Sentry (AS), optional for phacomachine Cebturion.

    The study is based on the analysis of surgical records and disease histories of 100 patients operated on age-related cataract, by the method of ultrasonic phacoemulsification. All surgeries were performed by one surgeon by using the phacomachine Cebturion with settings ensuring safety and efficacy of the procedure. The half of all procedures were performed using the conventional ultrasonic handpiece (OZ), and the other half – using the handpiece with active transducer of pressure (AS). The evaluation criteria used include the following: pressure level of irrigating fluid used for nucleofragmentation; nucleofragmentation time; percentage loss of the posterior corneal epithelium cells.

    Results. With equal safety of the procedure, using the ultrasonic handpiece with active transducer of pressure (AS) in the course of nucleofragmentation enables the reduction of irrigating fluid pressure (BSS) by 20 mm Hg, followed by the reduction of BBS volume passing through the anterior chamber by 30 ml upon the average.

    The rate of the intraoperative endothelial cells loss when using the ultrasonic active handpiece is also lower, as compared to the conventional one, 8.3±3.2 vs 10.2±2.1, respectively. However this difference could not be confirmed by statistical data, possibly due to the limited sample of patients.

    Conclusions. The introduction of a new active ultrasonic handpiece (AS) for phacomachine Cebturion allows further reduction of procedural injury, while maintaining high efficiency of nucleofragmentation.

    Key words: рhacoemulsification of cataract, ultrasonic handle, active transducer of ocular pressure, reducing of surgical injury.