Safety techniques regarding morcellation
The drawstrings are then brought up into the port hub. The cap is removed, and the opening of the bag is pulled up through the port and out approximately 15-20 cm, as symmetrically as possible.
The port cap is then replaced within the exteriorized neck of the bag, and the bag is insufflated with traditional laparoscopic pressure of 15-18 mm, creating an artificial pneumoperitoneum. (See Figure 3.) The camera is reinserted, followed by the morcellator, into the 15-mm port of the single-site tri-port. The morcellator must be lubricated so it does not catch the bag on the way in. Morcellation is carried out under direct vision.
After the morcellation process is complete, the morcellator is removed, followed by the camera and the tri-port cap. The bag is desufflated and removed through the open cannula, and the abdomen is closed as usual.
In a multiport approach, the umbilical incision is extended to 15 mm after completion of the hysterectomy or myomectomy. The bag is inserted and placed in a manner similar to the single-port approach, except that the lateral ports may be utilized to further position the bag once it is placed about halfway in. The bag is similarly opened, the specimen contained, and the neck of the bag exteriorized. A 15-mm port is similarly lubricated and placed inside the neck of the bag and through the umbilical incision.
As the bag is insufflated, the lateral ports are backed slightly out so that they're flush with the abdominal wall, and the trocars are opened to allow the release of any residual gas in the abdomen. The laparoscope is then placed into the 15-mm umbilical trocar.
Visualization will ultimately occur from another site, however. One of the lateral 5-mm trocars is advanced at a right angle to the insufflated bag, and an introducer is placed to puncture the bag. I recommend using a blunt plastic trocar; a balloon-tip trocar also can be used. Contrary to what one might think, the bag will not leak any gas. The laparoscope is now transferred to this 5-mm lateral port, and the umbilical port is removed. A lubricated morcellator is inserted directly through the umbilical incision, and morcellation is performed under direct visualization from the side port.
These techniques for single-port or multiport enclosed power morcellation have been shown to be reproducible and successful – with all bags intact and specimens contained – in a multicenter analysis that is being prepared for publication. The largest uterus in the study was 1,481 g.
To make the approach less cumbersome, I have designed a morcellation device consisting of a specialized bag that will open automatically and assist in capturing the specimen. The device, which has closure tabs and a retrieval lanyard, has been developed with the input of other minimally invasive gynecologic surgeons and the design and engineering expertise of Advanced Surgical Concepts. It will be manufactured by the company pending Food and Drug Administration approval.
