Letter to the editor.

摘要

We read with interest the manuscript by El-Nashar et al [ 1 ] and appreciate the care the authors took in collecting and reporting their experience with 2 systems for endometrial ablation to treat menorrhagia. The authors describe the initial product they used for this treatment, beginning in 1998, as ThermaChoice (Gynecare, Somerville, New Jersey (subsequently described as thermal balloon ablation). The GYNECARE THERMACHOICE Uterine Balloon Therapy (UBT) System has existed in 3 versions. Modifications to produce the 2 subsequent versions of the THERMACHOICE UBT System included improved heat distribution (THERMACHOICE II) and increased conformity of the nonlatex balloon (THERMACHOICE III). Although the authors did not report which system version or versions were used in their series, based on the timing of patient accruement, from 1998 through 2005, it seems likely that most were treated with the first- or possibly the second-generation THERMACHOICE System.