Ventral Hernia Clinical Trial
Official title:
Randomized Clinical Trial to Evaluate the Use of a Prophylactic Polypropylene Mesh To Reduce the Incidence of Ventral Hernias in Colorectal Surgery
The incidence of ventral hernias has remained inappropriately high. Any innovation in order
to reduce this incidence would be simply cost-effective. Although there is still some concern
about the use of mesh in clean-contaminated or contaminated surgery, based in our
experimental studies, we plan to use a mesh in the primary closure of abdominal incision to
prevent incisional hernias.
The investigators propose a clinical trial to assess a model to prevent the incisional hernia
after laparotomy to treat colorectal carcinoma is scheduled. A simple randomization is
scheduled: in the intervention group a prefascial large-pore low-weight 5 cm wide
polypropylene mesh is fixed covering the midline closure; in the control group a conventional
closure with a running suture of long-term absorbable material with a suture/wound length
ratio 4:1. The sample size was calculated with an estimated incidence of ventral hernia of
25% in the control group and 10% in the intervention group, 0,05 alfa and a 0,15 beta error.
The main goal is the appearance of a ventral hernia after 24 months of follow-up. Other
outcomes are wound complications and morbidity. Exclusion criteria are adult patients with a
previous ventral hernia, estimated survival of less than 6 months or hemodynamic instability
during surgery.
The diagnosis of ventral hernia will be assessed by clinical exploration on 3,6,12,18 and 24
months and abdominal CT controls at 6,12, and 24 months. The study will be statistically
evaluated with SPSS 18.0.
n/a
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