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Renal Artery Aneurysm in a 13-year-old Child

13세 남아에서 발견된 신동맥의 동맥류 증례 보고

  • Yeh, Hye Ryun (Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine) ;
  • Kim, Min Jee (Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine) ;
  • Kang, Eun Gu (Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine) ;
  • Han, Jee Yeon (Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine) ;
  • Lee, Joo Hoon (Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine) ;
  • Park, Young Seo (Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine)
  • 예혜련 (울산대학교 의과대학 서울아산병원 소아청소년병원 소아청소년과) ;
  • 김민지 (울산대학교 의과대학 서울아산병원 소아청소년병원 소아청소년과) ;
  • 강은구 (울산대학교 의과대학 서울아산병원 소아청소년병원 소아청소년과) ;
  • 한지연 (울산대학교 의과대학 서울아산병원 소아청소년병원 소아청소년과) ;
  • 이주훈 (울산대학교 의과대학 서울아산병원 소아청소년병원 소아청소년과) ;
  • 박영서 (울산대학교 의과대학 서울아산병원 소아청소년병원 소아청소년과)
  • Received : 2014.03.14
  • Accepted : 2014.04.16
  • Published : 2014.04.30

Abstract

Primary renal artery aneurysm has been estimated to account for an incidence of 0.015-1% with associated morbidities including renovascular hypertension and rupture. Renovascular hypertension associated renal artery aneurysms in children is not a common disease. In patients with complicated renal vascular disease, renal autotransplantation has been used as an alternative to percutaneous transluminal angioplasty, which may be hazardous in these situations. We report a case of a renal artery aneurysm in a 13-year-old Korean child presenting hypertension detected during school health examination. Preoperative workup demonstrated a $2.8{\times}2.1{\times}1.9$ cm saccular aneurysm in the right renal hilum that was not amendable to endovascular repair. A surgical strategy including extracorporeal renal artery reconstruction with autotransplantation was applied in order to restore renal artery anatomy and to treat renovascular hypertension. Immediately he complained of severe right flank pain and postoperative doppler sonography revealed lack of perfusion. On the 5th day after autotransplantation, the patient underwent a transplant nephrectomy. He was well postoperatively and was found to have a normal kidney function and stable blood pressure control without antihypertensive medication. This is the first pediatric case of renal artery aneurysm in Korea who underwent extracorporeal repair followed by autotransplantation failure. More pediatric cases with renal artery aneurysm should be reported to identify therapeutic outcome and long term prognosis.

소아에서 신장동맥의 동맥류는 신혈관성 고혈압 가운데 드문 질환으로 하나로 수술적인 치료법 가운데 복잡한 형태의 동맥류의 경우 신혈관 재건술과 신장 자가이식술이 현재 선호되고 있는 수술법이다. 본 저자들은 13세 소아환자에서 우연히 정기건강검진에서 발견된 고혈압에 대해 시행한 전산화 단층 혈관촬영술을 통해 발견된 일측성 신장동맥의 동맥류에 대해 보고한다. 환아는 $2.8{\times}2.1{\times}1.9$ cm의 크기의 우측 낭포성 동맥류가 발견되었으며, 분지혈관이 복잡하고 병변이 신문부에 위치하여 신혈관 재건술과 신장 자가이식을 시행하였다. 그러나 도플러 신장 초음파를 통해 신장 혈류가 매우 감소하였음을 확인 후 신장 자가이식 한지 5일째 신절제술을 시행하였다. 병리적 소견은 전반적인 신장 허혈성 변화를 보였고, 섬유근성 형성장애를 시사하는 소견은 없었다. 본 저자들은 국내에서 현재까지 보고된 바 없는 신혈관성 고혈압 및 일측성 신동맥의 동맥류로 진단된 소아를 대상으로 체외 신혈관 재건 및 신장 자가이식을 시도한 증례를 보고하였다. 추후에 신동맥의 동맥류와 관련된 신혈관성 고혈압의 치료에 대한 다양한 방법 및 장기적인 추적 관찰에 대한 보고가 추가되어야 할 것이다.

Keywords

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