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  • Title: Management of herniated retroperitoneal adipose tissue during endoscopic extraperitoneal inguinal hernioplasty.
    Author: Lau H, Loong F, Yuen WK, Patil NG.
    Journal: Surg Endosc; 2007 Sep; 21(9):1612-6. PubMed ID: 17762958.
    Abstract:
    BACKGROUND: Herniation of retroperitoneal adipose tissue into the inguinal canal, traditionally called cord lipoma, is frequently encountered during endoscopic totally extraperitoneal inguinal hernioplasty (TEP). Failure to recognize and manage the cord lipoma accounted for 30%-50% of recurrent hernia after TEP. The present study was undertaken to evaluate the incidence, risk factors, and management of herniated retroperitoneal adipose tissue during TEP. METHODS: Between December 2002 and November 2005 all patients who underwent TEP were prospectively evaluated for the presence of cord lipoma. Clinical outcomes of patients who were treated for their cord lipoma were compared with those without cord lipoma. Risk factors for the occurrence of cord lipoma were also examined. RESULTS: A total of 498 patients underwent unilateral (n = 386) or bilateral (n = 112) TEP. The overall incidence of cord lipoma was 26.5% (n = 132). A higher body weight, a higher body mass index, and a larger hernial defect were significantly associated with the presence of cord lipoma. Most of the cord lipoma cases (n = 119) were reduced to pelvic peritoneal reflection line after division of the feeding vessels from surrounding structures, while the rest (n = 13) were resected. Early postoperative outcomes, including pain score, morbidities, and other recovery variables, showed no significant difference between the two groups. No recurrence occurred in the present series. CONCLUSIONS: Herniation of retroperitoneal adipose tissue into the inguinal canal occurred in more than one-fifth of the patients with inguinal hernia. Awareness and appropriate treatment of the cord lipoma helped to reduce the risk of recurrence. During TEP, the internal inguinal ring and inguinal canal should always be cleared of any herniated adipose tissue by either reduction or resection. This clearing posed no adverse effects on postoperative outcome.
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