修回日期: 2006-10-08
接受日期: 2006-10-18
在线出版日期: 2007-01-08
目的: 研究血小板计数对细菌性肝脓肿患者预后判定的临床价值.
方法: 经肝脏CT或MRI平扫加增强和肝脏穿刺确诊的细菌性肝脓肿(平均直径为6.54 cm)患者(n = 112), 入院后每天1次血常规, 3天1次B超, 应用血小板的动态检测研究细菌性肝脓肿患者的预后.
结果: 血小板计数1 wk内达到最高值≥400×109/L共43(38.39%)例, <400×109/L共22(19.64%)例, >1 wk达到最高值≥400×109/L共29(25.89%)例, <400×109/L共18(16.07%)例. 血小板计数1 wk内达到高峰值的患者预后明显优于>1 wk的患者(P<0.05), ≥400×109/L的患者预后明显优于<400×109/L的患者(P<0.05).
结论: 血小板计数可作为衡量细菌性肝脓肿预后的重要指标之一.
引文著录: 张彩凤, 韩宇, 刘竹娥, 夏永华. 血小板计数对细菌性肝脓肿患者预后判定的临床价值. 世界华人消化杂志 2007; 15(1): 75-77
Revised: October 8, 2006
Accepted: October 18, 2006
Published online: January 8, 2007
AIM: To study the relationship between platelet count and the prognosis of patients with pyogenic liver abscess.
METHODS: A total of patients with pyogenic liver abscess were diagnosed by computed tomography (CT), magnetic resonance imaging (MRI) and liver punctures, and the average focus size was 6.54 cm in diameter. Blood routine examination was performed everyday, combined with B-ultrasonography every three days. The relationship between the dynamic changes of platelet count and the prognosis of pyogenic liver abscess patients was analyzed.
RESULTS: Within one week, 43 (38.39%) patients were found with maximal platelet count more than or equal to 400 × 109/L, and 22 patients (19.64%) with platelet count less than 400 × 109/L. More than one week, 29 patients (25.89%) were with maximal platelet count more than or equal to 400 × 109/L, 18 patients (16.07%) with platelet count less than 400 × 109/L. Thrombocytosis occurred quickly in the patients in hospital less than one week, whose maximal platelet count was more than or equal to 400 × 109/L, and their clinical symptoms were improved remarkably as compared with those of patients in hospital more than one week, with maximal platelet count less than 400 × 109/L (P < 0.05).
CONCLUSION: Pyogenic liver abscess patients, in whom thrombocytosis occurs in short time, have a favorable prognosis. Blood count is an important indicator for the prognosis of Pyogenic liver abscess.
- Citation: Zhang CF, Han Y, Liu ZE, Xia YH. Value of platelet count in the prognosis of patients with pyogenic liver abscess. Shijie Huaren Xiaohua Zazhi 2007; 15(1): 75-77
- URL: https://www.wjgnet.com/1009-3079/full/v15/i1/75.htm
- DOI: https://dx.doi.org/10.11569/wcjd.v15.i1.75
目前, 国内外学者对细菌性肝脓肿患者预后, 特别是关于预后判定的临床指标研究较少, 他们的研究主要集中在治疗方法及病原学上. 本研究重在从血小板的的动态检测来了解细菌性肝脓肿患者的预后.
2005-06/2006-06我院消化科细菌性肝脓肿患者112例(经肝脏CT或MRI平扫加增强和肝脏穿刺确诊的一个细菌性肝脓肿(平均直径为6.54 cm), 男50例, 女62例, 15-78(平均49.5)岁.
1.2.1 用药方法 入院后根据经验使用甲硝唑(100 mL, iv, bid)、左氧氟沙星(0.2 g, iv, bid), 肝功受损患者(ALT>1333.6 nkat/L), 加保肝药, 禁用影响血小板药物.
1.2.2 观察指标 入院后每天一次血常规, 3 d一次B超, 记录预后(住院时间、肝脓肿愈合时间、退热时间、临床症状明显改善时间)及血小板的改变.
统计学处理 采用SPSS 10.0软件包进行数据处理, 实验结果以均数±标准差(mean±SD)表示, 各组间比较用t检验, α = 0.05.
住院期间通过对血小板计数的动态观察, 血小板计数1 wk内达到最高值≥400×109/L 43(38.39%)例, <400×109/L 22(19.64%)例, >1 wk达到最高值≥400×109/L 29(25.89%)例, <400×109/L 18(16.07%)例. 血小板计数1 wk内达到高峰值的患者预后明显优于>1 wk的患者(P<0.05), ≥400×109/L的患者预后明显优于<400×109/L的患者(P<0.05, 表1).
肝脏和骨髓是全身性感染常受累的器官, 细菌性肝脓肿是肝脏受累的表现, 骨髓受累的具体表现在于外周血中出现有形成分异常, 尤其是血小板对细菌毒素较为敏感[15]. 血小板在感染性疾病中可能起着重要作用, 他涉及血管舒张以及血管收缩性物质的释放, 可引起或加重器官功能障碍的潜在可能[8,10-11]. 本研究通过检测血小板计数了解细菌性肝脓肿患者预后.
感染时机体受到细菌毒素刺激后通过单核巨噬细胞系统激活生化免疫途经, 产生TNF, 进一步刺激IL-1、IL-8、IFN-5、血小板激活因子、前列腺素等具有生物效应物质, 使机体处于应激状态, 血小板释放增加[1-5,9,16], 同时, 血小板重新分布. 继发性血小板增多的原因包括手术、感染、肿瘤和慢性炎症等, 可能与骨髓功能紊乱、巨核细胞、血小板生成素(TPO)、髓外造血系统及感染时IL-1, IL-6合成增加相关[2-6,11].
本研究通过对细菌性肝脓肿患者血小板计数的动态检测, 发现46(41.1%)例患者住院前1 wk内血小板高峰值>400×109/L的患者住院时间、退热时间、肝脓肿愈合时间和临床症状改善时间都明显短于迟缓升高患者, 住院费用也较低, 提示细菌性肝脓肿患者血小板计数在短期内迅速升高, 预后较好, 否则预后较差. 细菌性肝脓肿患者在发病过程中, 血小板计数可能先出现一个逐渐降低的过程, 而后出现高峰期, 继而恢复正常, 可能与骨髓功能紊乱、血小板的重新分布、血小板生成素(TPO)、髓外造血系统及IL-6等炎症因子的作用相关[3,12]. 若细菌性肝脓肿患者血小板计数迅速达到峰值, 提示机体免疫功能较好, 对炎症刺激的反应较好, 预后好. 本研究提示血小板能够比较正确、敏感反映细菌性肝脓肿患者的病情与预后, 可作为1个监测指标. 对血小板在短期内升高不明显甚至降低的患者, 给予增强机体免疫力药物, 可能会缩短患者的住院时间、退热时间、肝脓肿的愈合时间及临床症状的改善时间, 这可以作为将来的一个研究方向.
在本研究中, 没有发现细菌性肝脓肿患者继发血小板增多症引起血栓形成等并发症, 不需特殊处理, 国内一些学者[1,6,14]也持相同观点. 但若发现血小板计数持续升高不降2 mo以上, 可能合并其他疾病, 应进一步行相关检查[4,7,13].
本文作者在临床工作中发现许多细菌性肝脓肿患者会出现血小板的改变, 就收集了相关资料, 并进行前瞻性的研究. 目前关于血小板和消化系统疾病的研究较少, 而且研究方向单一, 主要在治疗上, 本文重点是把血小板和细菌性肝脓肿联系起来, 利用血小板的改变了解患者的预后.
本研究的创意新颖, 有实际意义, 希望作者能在后续研究中检测细菌性肝脓肿患者血清中某些细胞因子(IL-1, IL-8, IFN-5等), 如确实升高, 将使该文章更完整, 更具有科学性.
电编: 张敏 编辑: 王晓瑜
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