Validity of an estimating formula to minimize the length of single incision in laparoendoscopic single-site donor nephrectomy

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  • 単孔式ドナー腎採取術における最小皮膚切開長の推定
  • タンコウシキ ドナージンサイシュジュツ ニ オケル サイショウ ヒフ セッカイチョウ ノ スイテイ

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Objective : We developed an estimating formula to minimize the length of single incision in LESS donor nephrectomy (LESSDN). <br>  Materials and Methods : The estimating formula was calculated as x = (π√prs )/2q (x = minimal wound length, π = Pi, p = skin extension coefficient, q = kidney reduction coefficient, r and s = longer and shorter diameter of the kidney on CT, respectively). The estimating formula was applied for 28 donors who underwent LESSDN using GelPOINT® involving pararectal single incision, and they were compared with 26 previous donors for whom the formula was not applied. <br>  Results : p and q were calculated as 1.45 and 0.80, respectively. The mean length of incision and warm ischemia time in the donors for whom the formula was applied were significantly shorter than those in donors without its application (5.62 vs. 5.32cm, p = 0.019 and 281 vs. 221 s, p = 0.019, respectively). <br>  Conclusion : The formula was effective to minimize the length of incision according to the size of the kidney and shorten the warm ischemia time in LESSDN.

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