Uterine manipulation in operative laparoscopy by suction disposable uterine device
© Springer-Verlag 2011
Received: 10 October 2010
Accepted: 22 November 2010
Published: 13 January 2011
The uterine mobilization is important to expose correctly the vesico-uterine plane, the adnexae, and the posterior cul-de-sac. Several studies compared different types of uterine manipulator and their maneuvrability, underlining the limitations or advantages related to the head and shaft when they are fixed together, limiting exposition or in the other, once there is dye injection capability. A new model of uterine manipulator by suction of endometrial cavity has been studied. Patients were not selected by uterine dimension or by gynecological disease; only the cases of endometrial cancer were excluded. In ten patients, we performed an hysteroscopic study associated to an endometrial specimen before installing the uterine device. No endometrial modification was found between normal endometrial specimen before surgery and after surgical treatment. The Vectec uterine manipulator has been demonstrated to be easy and safe to use.
Our aim and objective is to evaluate the efficacy and ergonomy of a new uterine manipulator and of the consequences of a suction system on endometrial tissue.
Laparoscopic surgery is currently accepted worldwide as an excellent diagnostic and treatment tool for many gynecologic problems. The uterine manipulator is essential, assisting the control of the uterus during a laparoscopic operation.
The uterine mobilization is important to expose correctly the vesico-uterine plane, the adnexae, and the posterior cul-de-sac. Otherwise, peritoneal lesions or defect of anterior and posterior space may not be evidenced and treated. In addiction pushing and lateralizing the uterus, more anatomical structures and spaces are visualized, such as paravesical and pararectal spaces. They could be accessible to dissection if necessary. Several studies compared different types of uterine manipulator and their maneuvrability, underlining the limitations or advantages related to the head and shaft when they are fixed together, limiting exposition or in the other once there is dye injection capability . The uterine manipulator play the major role during operative laparoscopy approach showing uterine ligaments, parametrial spaces, uterine vessels, and to make colpotomy and hysterectomy; however, also during laparoscopy for adnexal pathology, it is revealed important to expose pelvic space [1–3, 5, 6].
More recently, in 2006, Banerjee, for the first time, suggested a suction cannula as uterine manipulator . According to this idea, we developed a new model of uterine manipulator by suction of endometrial cavity, easy to install with the possibility to make a dye test. As part of a gynecologic procedure, dye is injected into the uterine cavity to observe its passage through the fimbria for evaluation of the fallopian tube patency in infertile patient [7–9].
Materials & methods
Uteri dimension study by Vectec, hysterometer is made to adapt the manipulator to endometrial cavity with or without the use of a reducer device. The blunt upper extremity of the manipulator with holes is inserted in the uteri and connected to the vacuum by a tube with a luer lock link. Particular attention is necessary to push closely in contact the extremity of Vectec manipulator with the cervix to obtain the good vacuum and to solidarize it with uteri. The dye test was made, blocking the tap on manipulator and linking a syringe to inject methylene blue inside.
After surgical laparoscopic procedure, at the end of the surgery, the uterine manipulator has been removed, and a second endometrial study by Cornier device and diagnostic hysteroscopy were performed, as previously described above.
Adequacy of both preparations was assessed as satisfactory when sufficient cellular material was present to make a pathological diagnosis, or to exclude a pathological process with confidence.
After the use of a manipulator, we have focused the attention to compare the endometrial glands and stromal cells characteristics, cytoplasm, and basal lamina; in the vessels' endothelial structure and integrity, in luminal gland secretion, and inflammatory infiltration cells.
Specimens described as “barely adequate” contained scanty endometrial material that was adequate for assessment, but suboptimal for exclusion of pathology.
In contrast, a specimen was assessed as “inadequate” if there was insufficient cellular material in both the cytological slide and the cell block to exclude a pathological diagnosis. The stromal cells, the endometrial glands, vessels, and inflammatory cells infiltration were compared between the two specimens to study the modification caused by manipulator application.
No difficulties were found to insert the uterine manipulator, and the suction system allowed the surgeon to obtain a good exposition and mobility of uteri during surgery, independently of the uterine size. The Vectec manipulator has the advantage to be adaptable to each endometrial cavity; light and easy to mobilize. Using the manipulator, a blue dye test easily showed the bilateral tubal permeability, despite a fluid blue reflux which occurred around the cannula in three cases. In these cases, we checked that in a no right position of manipulator, which was not in contact with the uterine external orifice consequently, a non-optimal aspiration was obtained.
In all cases, no difference was found between two biopsies before and after uterine Vectec manipulator application. Tissue structures were well preserved, permitting an adequate analysis of tissue.
The Vectec suction manipulator has demonstrated to be easy to install, cheap, and safe. The respect of hystological structure by suction is an important concept, because it could open other possibilities for others pathologies as application in oncology, where the integrity of tissue structures and cells is necessary to distinguish normal cells from atypical cells or neoplasia. In addition, the vacuum action in oncology could limit the neoplastic endometrial cells diffusion in peritoneal cavity during laparoscopic surgery. To evaluate this potential role, several studies are necessary which the results will be next published.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
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