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01.12.2004 | Original article | Ausgabe 12/2004

Surgical Endoscopy 12/2004

Direct trocar insertion vs veress needle in nonobese patients undergoing laparoscopic procedures: a randomized prospective single-center study

Zeitschrift:
Surgical Endoscopy > Ausgabe 12/2004
Autoren:
F. Agresta, P. De Simone, L. F. Ciardo, N. Bedin

Abstract

Background

Nonobese patients undergoing laparoscopic procedures present a dilemma as to the correct mode of entry into the abdominal cavity because the Veress needle (VN) technique seems to be associated with a high risk of vascular and visceral injuries. Direct trocar insertion (DTI) has been reported as an alternative to the VN for creation of the pneumoperitoneum.

Methods

An open comparative randomized prospective study was conducted on the feasibility and safety of DTI vs the VN technique in nonobese patients of any age category referred for urgent or scheduled laparoscopic procedures. Exclusion criteria were obesity (defined as a body mass index [BMI] > 27 kg/m2), major abdominal distension, and two or more previous abdominal operations. The study endpoints were the feasibility and safety of the DTI and VN techniques. Results were evaluated on an intention-to-treat basis. Statistical analysis was carried out with the t-test for independent samples, the chi-square tests, and the Fisher’s exact tests, as appropriate. The level of significance was 0.01.

Results

Since January 2002, a total of 598 nonobese patients have been entered into the current trial; 46% (mean BMI 21.6 ± 4.4 kg/m2) were randomly allocated to DTI, whereas 54% (BMI 21.1 ± 5.3 kg/m2) were allocated to the VN techniques. Demographic features and type of procedures were similar for the two groups. DTI was feasible in 100% of patients vs 98.7% in the VN group (p = NS). Minor complications were nil in the DTI group and 5.9% in the VN group (p < 0.01). The latter group consisted of 11 cases (3.4%) of subcutaneous emphysema and eight cases (2.5%) of extraperitoneal insufflation. Major complications were nil in the DTI group and 1.3% among VN patients (p = NS). These latter cases consisted of two (0.3%) hepatic lesions managed laparoscopically; one (0.3%) misdiagnosed ileal perforation requiring reintervention, and one (0.3%) mesenteric laceration treated conservatively.

Conclusion

In thin and very thin patients of any age category with no more than one previous abdominal operation, DTI is a safe alternative to the VN technique and is associated with fewer minor complications. In terms of major complications, there is no difference between the two techniques. Either technique of access is acceptable Thin and very thin patients undergoing laparoscopy, on condition that the basic principles of laparoscopic surgery are complied with.

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