PREDICTIVE FACTORS OF THE INITIAL TREATMENT FOR 207 BLUNT RENAL TRAUMA CASES BASED ON THE CLASSIFICATION FOR RENAL INJURY OF JAPANESE ASSOCIATION FOR THE SURGERY OF TRAUMA 2008's VERSION

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  • 日本外傷学会腎損傷分類2008（JAST分類2008）に基づいた鈍的腎外傷207例の初期治療選択因子の検討
  • ニホン ガイショウ ガッカイジンソンショウ ブンルイ 2008(JAST ブンルイ 2008)ニ モトズイタ ドンテキジンガイショウ 207レイ ノ ショキ チリョウ センタク インシ ノ ケントウ

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<p> (Objective) We retrospectively investigated the applicability of the Japanese Association for the Surgery of Trauma (JAST) classification version 2008 for renal injuries as predictive factors of the initial treatment for 207 blunt renal injury cases.</p><p> (Materials and methods) We reviewed 207 patients between 1982 and 2013 who were admitted to our institution with blunt renal trauma. Patients were classified as conservative management group, immediate transcatheter arterial embolization (TAE) group, and immediate nephrectomy group by initial treatment. We retrospectively assessed several parameters including JAST criteria version 2008 type of renal injury (type), severity of hematoma (H factor) and extravasation of urine (U factor), the shock on arrival, associated abdominal injuries, serum hemoglobin levels, and macrohematuria as predicting factors of initial treatment of blunt renal trauma.</p><p> (Result) TypeIII and PV injuries, H2 factor and associated non-renal abdominal injuries were predictive factors of immediate nephrectomy (p=0.001, p=0.000, p=0.003). TypeIII and PV injuries and H2 factor were predictive factors of immediate TAE. Both of H2 and U2 factors were significant predictors of immediate nephrectomy in patients with typeIII injury. H factor was a significantly predictive factor of immediate TAE in patients with typeI/II injuries (p=0.040). The rate of immediate TAE has been increasing but the rate of partial nephrectomy except for nephrectomy has been decreasing since the year 2007 when TAE was immediately available in our hospital.</p><p> (Conclusion) The type category and severity of hematoma of JAST classification version 2008 would be predictive factors of initial management of blunt renal injuries. Patients with typeIII injuries and both of H2 and U2 factors, can be adapted to immediate nephrectomy. Patients with typeI/II and H2 factors can be adapted to immediate TAE.</p>

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