We hypothesize, that the use of the Hohl manipulator® at total laparoscopic hysterectomy reduces operative time (from skin incision to detachment of the uterus) and lateral termal damage of the vaginal wall during colpotomy due to the following reasons: (1) Uterine manipulation is better with the Hohl manipulator®, thereby facilitating dissection during all aspects of the surgery, (2) more tension can be applied on the vagina during colpotomy, thereby hastening electrosurgical transection, reducing activation time and reduce lateral thermal damage and (3) tension on the vagina can be applied until the colpotomy is finished, due to the tight connection between the Hohl manipulator® and the cervix of the uterus, which also affects speed of transection, electrosurgical device activation time and lateral thermal damage.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
91
St. Michael´s Hospital
Toronto, Ontario, Canada
Detachment of the uterus
Operative time from skin incision to detachment of uterus. Times are routinely collected by operating room nursing staff.
Time frame: 45 minutes to 3 hours
Thermal Damage
Lateral thermal damage to the vagina will be measured on the specimen (in mm) at the time of pathologic evaluation.
Time frame: 2 weeks post surgery
Colpotomy
Time from first monopolar energy activation to completion of colpotomy. Operative times are routinely collected by operating room nursing staff.
Time frame: 3 minutes to 20 minutes
Blood Loss
Total amount of blood lost throughout surgery. Measured in cc.
Time frame: 45 minutes to 3 hours
Pain
Amount of post operative pain measured using a pain sensitivity scale.
Time frame: 24h post surgery
Manipulator Installment
Time frame: intraoperative
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