Three Laparoscopic Access Techniques

May 11, 2012 updated by: Cafa Ester Valentina, Campus Bio-Medico University
The study compares the Veress needle technique, the Direct trocar insertion and the Open technique with each other, in terms of minor complications, in elective laparoscopic procedures for benign pathologies.

Study Overview

Study Type

Interventional

Enrollment (Actual)

608

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • not-obese adult patients referred for scheduled laparoscopic and gynecologic procedures,
  • benign pathology
  • no previous abdominal surgery
  • Age range was 18-70 years

Exclusion Criteria:

  • obesity, defined as a body mass index (BMI) > 30 kg/m2
  • previous abdominal surgery by laparoscopy or laparotomy
  • history of PID
  • irritable Bowel Syndrome
  • suspicion of malignancy or malignancy at the histological examination

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
OTHER: Veress needle technique

The angle of the Veress needle insertion is 45 for non-obese women. After insertion of the needle, tests to determinate its correct positioning are: the double click test, the aspiration test, the handing drop test, serial intrabdominal gas pressure measurements.

The volume of CO2 inserted with the Veress needle depends on the intra-abdominal pressure. Adequate pneumoperitoneum should is determined by a pressure of 20 to 30 mm Hg and not by predetermined CO2 volume.

Direct insertion of the trocar is performed without prior pneumoperitoneum. Infra-umbilical skin incision is wide enough to accomodate the diameter of a sharp trocar/cannual system. The abdominal wall is elevated by pulling on, by hands, two towel clips placed 3 cm on either side of the umbilicus, and the trocar is inserted at a 90°angle.

On removal of the sharp trocar, the laparoscope is inserted to confirm the presence of omentum or bowel in the visual field.

A small incision, 1 cm long, is made through the skin of the lower edge of the umbilical fossa. The skin and the subcutaneous adipose tissues are retracted with the Zimmerman dissectors. The anterior rectus fascia is incised with the scalpel. The dissection with the Zimmerman valves allows the exposure of the peritoneum. After the peritoneum is incised, the trocar is inserted under direct vision. The laparoscope is introduced and insufflation is started. At the end of the procedure the fascial defect is closed.
OTHER: Direct trocar technique

The angle of the Veress needle insertion is 45 for non-obese women. After insertion of the needle, tests to determinate its correct positioning are: the double click test, the aspiration test, the handing drop test, serial intrabdominal gas pressure measurements.

The volume of CO2 inserted with the Veress needle depends on the intra-abdominal pressure. Adequate pneumoperitoneum should is determined by a pressure of 20 to 30 mm Hg and not by predetermined CO2 volume.

Direct insertion of the trocar is performed without prior pneumoperitoneum. Infra-umbilical skin incision is wide enough to accomodate the diameter of a sharp trocar/cannual system. The abdominal wall is elevated by pulling on, by hands, two towel clips placed 3 cm on either side of the umbilicus, and the trocar is inserted at a 90°angle.

On removal of the sharp trocar, the laparoscope is inserted to confirm the presence of omentum or bowel in the visual field.

A small incision, 1 cm long, is made through the skin of the lower edge of the umbilical fossa. The skin and the subcutaneous adipose tissues are retracted with the Zimmerman dissectors. The anterior rectus fascia is incised with the scalpel. The dissection with the Zimmerman valves allows the exposure of the peritoneum. After the peritoneum is incised, the trocar is inserted under direct vision. The laparoscope is introduced and insufflation is started. At the end of the procedure the fascial defect is closed.
OTHER: Open technique
Trocar access in laparoscopy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
minor complications
Time Frame: 1 year
feasibility of the techniques and the incidence of Veress needle, Direct technique insertion and Open technique related minor complications
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2006

Primary Completion (ACTUAL)

May 1, 2010

Study Completion (ACTUAL)

September 1, 2010

Study Registration Dates

First Submitted

May 9, 2012

First Submitted That Met QC Criteria

May 11, 2012

First Posted (ESTIMATE)

May 14, 2012

Study Record Updates

Last Update Posted (ESTIMATE)

May 14, 2012

Last Update Submitted That Met QC Criteria

May 11, 2012

Last Verified

May 1, 2012

More Information

Terms related to this study

Other Study ID Numbers

  • TRC-01

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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