摘要
目的探讨联合常规实验室检查指标在骨髓增生异常综合征(MDS)的诊断和低增生性MDS与慢性再生障碍性贫血(CAA)鉴别诊断中的价值,提供基层单位适用的MDS诊断和鉴别诊断参考方案。方法回顾性分析骨髓原始细胞小于0.050的152例MDS患者和86例CAA患者初诊的常规实验室检查资料并进行统计学分析。结果MDS患者血红蛋白,红细胞体积分布宽度一变异系数、未成熟网织细胞比率、血小板计数(BPC)、骨髓原始细胞及早幼粒细胞之和与中性中幼粒细胞及中性晚幼粒细胞之和的比值(RatioG)、原始红细胞及早幼红细胞之和与中幼红细胞及晚幼红细胞之和的比值(RatioE)、巨核细胞计数(Meg)、有核红细胞糖原染色(PAS)阳性率和阳性指数、中性粒细胞碱性磷酸酶染色(N—ALP)阳性率和阳性指数、血清间接胆红素(IBIL)、乳酸脱氢酶(LDH)、尿酸(UA)、叶酸(FA)、维生素B12(VitB12)、铁蛋白(SF)水平等常规实验室指标与CAA患者比较差异有统计学意义。MDS组患者有染色体核型异常者为74例(48.7%),CAA组患者染色体核型均正常,两组比较差异有统计学意义(P〈0.01)。MDS组与CAA组患者均有骨髓干/祖细胞培养生长不良或不生长,均有患者出现外周血T细胞亚群比例改变,两组比较差异无统计学意义。染色体核型异常的74例MDS患者与骨髓活检结果支持CAA诊断的82例患者(CAA组-2)比较,前述差异有统计学意义的指标均仍有统计学差异。7例骨髓低增生性MDS与CAA组-2患者比较,BPC、Meg、骨髓原始粒细胞百分比(MBP)、RatioG、有核红细胞PAS阳性率和阳性指数以及血清FA水平差异有统计学意义。选取各项差异有统计学意义的常规实验室指标进行联合诊断MDS及低增生性MDS特异度〉85%,灵敏度〉70%,正确诊断指数〉0.70。结论联合BPC、RatioG、Meg、有核红PAS阳性率和阳性指数、血清IBIL水平等常规实验室检查指标有助于MDS诊断和低增生性MDS与CAA的鉴别诊断。
Objective To explore the value of routine laboratory parameters in diagnosis of myelodysplastic syndromes(MDS) and differential diagnosis of patients with hypoplastic MDS from chronic aplastic anemia(CAA) for providing reference standard for primary hospitals. Methods The laboratory parameters at diagnosis of 152 MDS patients with less than 0.05 bone marrow blasts and 86 CAA patiens were retrospectively analyzed. Results There were significant differences between MDS and CAA in Hb, red cell distribution width-coefficient variation( RDW-CV), immature reticulocyte fraction(IRF), BPC, the ratio of G1 (the sum percentage of myeloblast and premyelocyte) to G2 ( the sum percentage of neutrophilic myelocyte and metamyelocyte) ( RatioG), the ratio of E1 ( the sum percentage of proerythroblast and early erythroblast) to E2 ( the sum percentage of intermediate erythroblast and late erythroblast) (RatinE), megakaryocyte count (Meg), erythroblast PAS, neutrophil alkaline phosphatase( N-ALP), and serous levels of indirect bilirubin (IBIL), lactose dehydrogenase (LDH), folic acid(FA), VitB12 and ferritin. Chromosome abnormalities were found in 74 MDS patients (48.7%) but in none of CAA patients ( P 〈 0.001 ). Furthermore, for differentiating MDS with less than 0.05 blasts from CAA, the sensitivity and specificity of combination of Meg, PAS, and IBIL level was 89.1% and 92.7%, the Youden index(γ) was 0. 818. Moreover, in the seven hypoplastic MDS cases, BPC, myeloblast percentage, RatioG, Meg, erythroblast PAS and FA were statistically different from those of CAA; the sensitivity and specificity of combination of PAS and BPC was 85.7% and 100%, the γ was 0. 857; the sensitivity and specificity combination of RatioG, Meg PAS was 85.7% and 98.8% respectively, the γ, was 0. 845. Conclusion The routine laboratory parameters, especially BPC, Meg, RatioG, PAS, IBIL may be halpful for the diagnosis of MDS and differential diagnosis of hypoplastic MDS from CAA.
出处
《中华血液学杂志》
CAS
CSCD
北大核心
2008年第9期623-628,共6页
Chinese Journal of Hematology
基金
国家自然科学基金(30670899)
高等学校博士学科点专项科研基金(20050023033)
新世纪优秀人才资助计划(NCET-05-0173)
天津市自然科学基金重点项目(08JCZDJC19200)