Clinical Significance of Coagulation Screening Tests and Platelet Counts in Children Undergoing Endoscopy

Eun Hye Lee, H. Yang, J. Ko, J. Seo
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引用次数: 0

Abstract

목 적: 본 연구에서는 소아의 내시경 시술 전 출혈의 위험성을 예측하는 검사로 혈소판과 혈액 응고 검사의 임상적 의의를 평가하고자 하였다. 방 법: 2004년 3월부터 2009년 12월까지 분당서울대학교병원 소아청소년과 외래 및 입원 환자 중에서 위장관 내시경 검사를 시행 받은 소아청소년 환자의 의무기록과 혈소판 수치 및 혈액 응고 검사 결과들을 후향적으로 분석하였다. 결 과: 총 1,476건의 검사 결과, 혈소판 수치가 정상보다 낮은 경우는 1명이었고, PT INR만이 비정상으로 연장된 경우가 25건(1.7%)이었고, aPTT만 연장된 경우가 132건(9%)이었고, 둘 다 연장된 경우가 5건(0.3%)이었다. aPTT 결과가 비정상이었던 경우에 혈액 응고 인자 검사를 시행한 경우가 14건이었고, 이 중 혈액 응고인자 XII 결핍증으로 진단된 경우가 7명, 폰 빌레블란드 병으로 진단된 경우가 1명, 폰 빌레블란드 병과 혈액 응고 인자 XII 결핍증이 동시에 나타난 경우가 1명, 경증의 A형 혈우병이 의심된 경우가 1명이었으며, 나머지 4명은 정상이었다. 혈액 응고 질환으로 진단된 환자를 포함하여 내시경 시술을 받은 모든 소아 환자에서 의미 있는 출혈 합병증이 나타난 경우는 없었다. 결 론: 소아 내시경 사전 검사로 시행하는 혈액 응고검사에서 일부 이상 소견이 확인되더라도 실제 혈액 응고 질환으로 진단되는 경우는 드물고, 혈액 응고 질환으로 진단된 환자에서조차 내시경 시술에 의한 출혈 합병증이 나타나지 않았다. 따라서 내시경 시술 전에 모든 환자를 대상으로 혈액 응고 검사 및 혈소판 검사를 반드시 시행할 필요는 없을 것으로 여겨지며, 출혈 경향을 나타내는 과거력과 가족력이 있는 소아와 이전에 혈액 응고 검사를 한 번도 시행 받지 않았던 영유아 환자에서 내시경 시술 전에 혈액 응고 검사를 시행하는 것이 바람직할 것이다. 【Purpose: The aim of this study was to assess the benefits of routine pre-endoscopy coagulation screening tests and platelet counts in Korean children. Methods: Between March 2004 and December 2009, children who underwent gastrointestinal endoscopy for the evaluation of various gastrointestinal symptoms were included. All of the subjects included in the study also underwent routine coagulation screening and platelet count determinations prior to endoscopy and biopsy. The clinical records and laboratory tests were retrospectively reviewed in all patients. Results: One hundred sixty-two of 1,476 (11%) patients who underwent endoscopy had abnormal results on pre-screening coagulation tests. Fourteen patients underwent coagulation factor assays due to abnormal clotting results in consecutive tests or due to clinical evidence of a bleeding tendency. Seven patients were diagnosed with factor XII deficiency, one patient was diagnosed with von Willebrand disease, one patient had von Willebrand disease and factor XII deficiency, and one patient was presumed to have mild hemophilia. The remaining 4 patients had normal results with the factor assays. The results of platelet counts were normal with the exception of 1 patient. No patient had significant bleeding during the endoscopic procedures, despite abnormal pre-endoscopic coagulation tests. Conclusion: Routine coagulation screening tests and platelet counts revealed abnormal results in some patients. Most of the patients with abnormal clotting were shown to have a factor XII deficiency, which had no significant associated bleeding tendencies; the other patients were diagnosed with hemophilia or von Willebrand disease. Therefore, although abnormal pre-endoscopic coagulation is not always related to significant bleeding complications, pre-endoscopic coagulation screening may be useful in some children in predicting the risk of bleeding tendency during endoscopic procedures.】
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儿童内镜下凝血筛查试验及血小板计数的临床意义
目的:本研究是通过预测小儿内窥镜手术前出血危险性的检查来评价血小板和血液凝固检查的临床意义。方法:对2004年3月至2009年12月盆唐首尔大学医院少儿青少年科外来及住院患者中进行胃肠道内视镜检查的少儿青少年患者义务记录和血小板数值及血液凝结检查结果进行后向分析。结科:共1476件检查结果显示,血小板数值低于正常的有1人,只有PT INR异常延长的有25件(1.7%),只有aPTT延长的有132件(9%),两个都延长的有5件(0.3%)。aptt结果不正常的情况下,血液凝固因子检查施行情况14件,其中确诊为金焕基血液凝固因子缺乏症的7名,冯·比尔莱布兰特因病诊断的情况1名,手机比尔莱布兰特并处金焕基血液凝固因子缺乏症如果同时出现,1人,轻微的a型血友病的最后怀疑,这是一名,其余4人情节了。包括被诊断为血液凝固疾病的患者在内,接受内窥镜手术的所有儿童患者都没有出现有意义的出血并发症。结论:在小儿内视镜事前检查的血液凝固检查中,即使确认了部分异常,实际被诊断为血液凝固疾病的情况也很少,就连被诊断为血液凝固疾病的患者也没有出现内视镜手术引起的出血并发症。因此,内窥镜手术前所有患者为对象,血液凝固检查及血小板检查必须施行,也没有必要,被视为表示出血倾向的历史和过去有家族史,小儿和以前血液凝固检查一次也不受到施行的婴幼儿患者血液凝固在内窥镜手术前检查时,实行的是可取的。The aim of this study was to assess The benefits of routine pre-endoscopy coagulation screening tests and platelet counts in Korean children。Methods: Between March 2004 and December 2009, children who underwent gastrointestinal endoscopy for the evaluation of various gastrointestinal symptoms were included。All of the subjects included in the study also underwent routine coagulation screening and platelet count determinations prior to endoscopy and biopsy。clinical records and laboratory tests were retrospectively reviewed in all patients。patients who underwent endoscopy had abnormal Results on pre-screening coagulation tests。Fourteen patients underwent coagulation factor assays due to abnormal clotting results in consecutive tests or due to clinical evidence of a bleeding tendency1 patient was diagnosed with von Willebrand disease, one patient had von Willebrand disease and factor XII deficiency;and one patient was presumed to have mild hemophilia。The remaining 4 patients had normal results with The factor assays。platelet counts were normal with The exception of 1 patient。No patient had significant bleeding during the endoscopic procedures, despite abnormal pre-endoscopic coagulation tests。Conclusion: Routine coagulation screening tests and platelet counts revealed abnormal results in some patients。Most of the patients with abnormal clotting were shown to have a factor XII deficiency, which had no significant associated bleeding tendencies;the other patients were diagnosed with hemophilia or von Willebrand disease。Therefore, although abnormal pre-endoscopic coagulation is not always related to significant bleeding complications,pre-endoscopic coagulation screening may be useful in some children in predicting the risk of bleeding tendency during endoscopic procedures
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