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近两年来,肾脏钝性外伤分为4度。Ⅰ度——挫伤;Ⅱ度——局限在皮质的撕裂伤(肾裂伤);Ⅲ度——延伸至收集系统的撕裂伤(肾断裂);Ⅳ度——肾蒂损伤。作者报道9例经CT诊断为肾钝性伤Ⅱ度和Ⅲ度的患儿。7例因车祸所致,2例系坠落伤。9例中1例做了肾切除,1例死于中枢神经系统损伤,1例因假性肾动脉瘤漏达50天之久行经皮穿刺栓塞治疗,余6例皆采用保守疗法;5～19个月后该6例CT随访,受累肾皮技皆遗有伤痕,而此时IVP则可能有假阴性结果。尽管保守治疗下受累肾脏的肾功能仅存38％,但重要肾功能尚存,伤后18——34个月血压
In the past two years, kidney blunt trauma is divided into 4 degrees. Degree I - contusion; degree II - cortical laceration (renal laceration); degree III - laceration (renal rupture) extending to the collection system; degree IV - injury to the renal pedicle. The authors report 9 cases of children diagnosed with secondary blunt injury Ⅱ and Ⅲ degrees by CT. 7 cases due to a car accident, 2 cases of falling injuries. One of the nine cases had a nephrectomy, one died of central nervous system injury, and one case had percutaneous puncture and embolization because of the leakage of the pseudo-renal aneurysm for 50 days. The remaining six cases were treated conservatively. Six months after the follow-up of CT, there was scarring in the affected kidney and skin, while IVP may have false negative results. Although only 38% of renal function is compromised under conservative treatment, significant renal function persists, with blood pressure 18-34 months after injury