Biomedical subjects

SG Kaali

Publications and source records attributed to SG Kaali.

4 recordsLinked to original sources

PubMed1996

Visually Guided Z Technique to Insert the Endopath Optiview

Visually guided Z insertion of the Endopath Optiview was evaluated in 200 consecutive women undergoing elective laparoscopic sterilization in an ambulatory setting. The technique was employed to establish the primary intraabdominal surgical port. All cases were completed successfully. There were no failed insertions and no multiple attempts to enter the abdominal cavity. Direct visualization while inserting the Endopath Optiview is important to localize the tip of the advancing instrument at any given moment. It lets the surgeon choose the shortest route in the abdominal wall and change the angle of the instrument when appropriate.

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PubMed1996

Comparison of the Abdominal Wall Stability of Endopath Optiview with the Standard Laparoscopic Cannula

We conducted a prospective trial to compare the intraabdominal wall stability of the sheath of the Endopath Optiview with that of a conventional reusable cannula. In 100 consecutive women undergoing elective laparoscopic sterilization in an ambulatory surgical unit, we alternately used a standard reusable 10-mm cannula (group A) or the Optiview 10- to 12-mm cannula (group B) to establish the intraabdominal surgical port. Single-incision bipolar laparoscopic tubal occlusion was performed, and the force required to remove the cannula sheath from the abdominal cavity was determined by spring-loaded force gauge. The mean (± SEM) peak force required to remove the cannula sheath in group A was 2.25 ± 0.19 lbs. The comparative value for group B was 5.32 ± 0.28 lbs. (p <0.005). The in situ operative sheath of the Endopath Optiview has greater intraabdominal wall stability than a standard reusable cannula.

Journal Article↗

PubMed1996

Use of the Endopath Optiview after Failed Conventional Cannula Insertion

Cannula insertion is considered to fail after three unsuccessful attempts to enter the abdominal cavity with standard cannulas. A prospective clinical trial was conducted to evaluate the usefulness of Endopath Optiview after failed insertion of conventional cannulas. Cannula insertion was unsuccessful in 4 of 267 women undergoing elective laparoscopic sterilization. In all four women the Endopath Optiview was introduced successfully into the abdominal cavity. In two women omental adhesions had to be transversed. The Endopath Optiview is valuable for recognizing and evaluating the path of failed cannula insertions in the abdominal wall. It is crucial to verify intraabdominal adhesions and safely separate them under direct visualization during the insertion.

Journal Article↗

PubMed1994

Comparison of Visual and Tactile Localization of the Trocar Tip During Abdominal Entry

The objective of this study was to determine whether video-aided visual imaging during the laparoscopic trocar insertion process will improve the surgeon's ability to localize the sharp penetrating tip of the instrument. A newly described visually directed laparoscopic trocar was used for insertion in 184 subjects to correlate visual localization of the tip of the trocar with the accuracy of the conventional tactile sensory approach. In 164 of the 184 cases the fascia was recognized visually at the same time as the surgeon acknowledged tactile resistance. However, partial intraabdominal penetration was noted in 102 of these cases just before the anticipated loss of resistance could be felt manually. More importantly, in 20 women there was no subjective manual confirmation of the tip location by the time intraabdominal placement of the trocar was visually confirmed. In this limited series there were no multiple insertions or complications under visually directed trocar entry. Video-aided direct visualization improves the surgeon's ability to localize the tip of the trocar throughout the insertion process. It may help the surgeon in recognizing and possibly avoiding some intraabdominal organ injuries.

Journal Article↗