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Trocar Site Hernia
            Stretching the Port Site for Retrieval                Following were the predisposing factors affecting the
                                                               trocar site hernia:
            Enlargement of umbilical wound for retrieving this specimen  1. Trocar size: Bigger the size of trocar more the chance of

            may be the cause of trocar site hernia. It is certain that forced  trocar site hernia.
            dilation of fascial layer is considered to be cause for herniation.  2. Closing trocar site/leaving open: Hernia was reported more
                                                                  when the trocar site was left open.
            Effects of CO
                        2                                      3. Open/closed laparoscopy: Open method by Hasson’s trocar
            CO  may push the omentum/intestine through the insertion  has shown less chance of trocar site hernia when compare
               2
            point in the fascia. These structures of may be trapped by  to closed method by Veress needle, by Mayol, et al. 22
                                           2
            abdominal contractions. 6,8  Duoron et al  stated said that partial  4. Location: Most hernia appeared at midline trocar and
            vacuum is created with the withdrawal of port, thus drawing  umbilical sites were found to be commonest.
            intestine/omentum in the fascial defect.           5. Stretching portsite for retrieval of tissue was another cause
                                                                  for trocar site hernia.
            Host Problem                                       6. Effect of compressed CO .
                                                                                      2
                                                               7. Obesity and nutrition.
                     4,7
            Azurin et al, stated that trocar site hernia occur in patient with  8. Infection of port site was the important predisposing factor
            comorbidity as wound infection, obesity, diabetics mellitus,  for development of trocar site hernia.
            although these did not reach statistical significance with
            obesity and nutrition was also one of the factor of trocar site  CONCLUSION
            hernia.
                                                               In this review article, classification of trocar site hernia was done
            Infection                                          by various study reports. We believe that a more clinical accurate
                                                               identification is available from this classification. This may be
            Port site infection is the predisposing factor for the development  useful for preventing complications in laparoscopy surgery if
                                3
            of the hernia. Callery et al,  reported that often umbilical insertion  the surgeon is aware of the correlation between the types of
            gets infected. Late onset hernia may be related to infection from  trocar site hernia and clinical manifestation before the surgery.
            stab wound.
                                                               REFERENCES
            DISCUSSION
                                                                 1. Rosen M, Ponsky J. Minimally invasive surgery. Endoscopy.
            Laparoscopic surgery has gained a lot of attention around the  2001;33:358-66.
            world. However this is associated with few of the postoperative  2. Duron JJ, Hay JM, Msika S, et al. Prevalence and mechanisms
            complication. The goal of this review was to ascertain the  of small intestinal obstruction following laparoscopic abdominal
            classification of trocar site hernia and to know the cause,  surgery: A retrospective multicenter study. Arch Surg 2000;
                                                                    135:208-12.
            predisposing factor and to enable more clinical identification  3. CalleryMP, Strasberg SM, Soper NJ. Complications of laparo-
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            Three types of trocar hernia were reported:             6:423-44.
            1. Early onset type, which occurred immediately following  4. Azurin DJ, Go LS, Arroyo LR, Kirkland ML. Trocar site
               operation, having small bowel obstruction like the Richter  herniation following laparoscopic cholecystectomy and the
               hernia. This indicates anterior fascial plane, posterior fascial  significance of an incidental pre-existing umbilical hernia. Am
               plane and peritoneum dehiscence.                     Surg 1995;61:718-20.
            2. Late onset type, which occurred several months after  5. Fear RE. Laparoscopy: A valuable aid in gynecologic diagnosis.
               surgery, with local abdominal bulge and no bowel     Obstet Gynecol 1968;31:297-309.
               obstruction. This indicates anterior fascial plane, and  6. Plaus WJ. Laparoscopic trocar site hernias. J Laparoendosc Surg
                                                                    1993;3:567-70.
               posterior fascial plane dehiscence. The hernia sac here is  7. Rabinerson D, Avrech O, Neri A, Schoenfeld A. Incisional hernias
               the peritoneum. It is related in many cases to the   after laparoscopy. Obstet Gynecol Surv 1997;52:701-03.
               complication of trocar insertion.                 8. Sanz-Lopez R, Martinez-Ramos C, Nunez-Pena JR, Ruiz de
            3. Special type indicates whole abdominal wall dehiscence,  Gopegui M, Pastor-Sirera L, Tamames-Escobar S. Incisional
               which occur with the protrusion of omentum and/or    hernias after laparoscopic vs open cholecystectomy. Surg Endosc
               intestine. The first case was of special type reported by  1999;13:922-24.
                  5
               Fear  in which a loop of bowel herniated through the defect  9. Maio A, Ruchman RB. CT diagnosis of post laparoscopic hernia.
               when the scope and sheath were taken out.            J Comput Assist Tomogr 1991;15:1054-55.

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