J Med Assoc Thai 1999; 82 (6):577

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The Use and Maintenance of Instruments for Large Loop Excision of Transformation Zone at Ramathibodi Hospital
Bullangpoti W Mail, Taechabunsermsak P , Wiratchai M , Chaturachinda K

The average use of LLETZ in Ramathibodi Hospital from 1993 to 1998 was 73.3 cases per
year (range 26-116 cases). The endocervical box (F2) loop electrode was the most frequently
damaged at the rate of 4 pieces per 100 procedures. The damage rate of the 25 mm loop electrode
was 3 pieces per 100 procedures and 20 mm loop electrode was 2 pieces per 100 procedures.
The life of the instrument can be prolonged through proper care and continuous maintenance
as well as by experienced operators and the assisting team.
Key word : Large Loop Excision of Transformation Zone, Loop Electrode Ramathibodi Hospital

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