文摘
支气管肺泡灌洗(BAL)越来越多地用于评估儿童的肺部疾病。然而,参考价值平衡液细胞和非细胞成分的孩子们缺乏。我们已经研究了微分细胞学BAL流体在48 3-16岁儿童(平均年龄+ / - SD 7.9 + / - 3.5岁)择期手术nonpulmonary疾病。一个灵活的支气管镜(宾得3.5或4.9毫米)挤在中间叶或者它的一个部分。落下帷幕了3 x1 ml-kg-1体重正常的生理盐水温暖的体温。第一个样品分别进行了研究;后续的样本集合进行分析。意味着复苏58 + / - 15%。更多粒细胞和淋巴细胞被发现在第一,而集中,样本。总细胞数是高度可变的,范围从0.5 - -57.1 x 10 (4) ml-1。 Macrophages were the predominant cell type, with a mean percentage of 81.2 +/- 12.7%. The relative proportion of lymphocytes was higher than that reported in most studies of adult volunteers (16.1 +/- 2.4%). No age dependency was observed for either cell type. The mean percentage of granulocytes was 2.5 +/- 3.3%. Absolute granulocyte counts were significantly higher in children under 8 yrs of age. This study provides the first reference data on BAL differential cytology in children without pulmonary disease and will be the basis for future investigations of BAL in paediatric lung diseases.