用血小板尺寸预测脓毒症患者的死亡率
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By HospiMedica International staff writers Posted on 24 Dec 2012 |
一项新研究表明,血小板平均体积(MPV)是脓毒症死亡率的一个容易获取的预后标记物。
德国莱比锡圣乔治医院(www.sanktgeorg.de)的科研人员对191名有脓毒症记录的患者(年龄中位数为72岁,38%为妇女)进行了研究。科研人员前瞻性评估了入院时、脓毒症发作时、脓毒症确诊时以及病程中MPV作为预后标记物的作用。他们比较了这些数据与56名急性上消化道出血和下消化道出血患者(年龄中位数为74,45.5%为妇女)的数据,这56名患者是作为对照受试者。同时收集其它标准实验室生物标记物的数据和临床参数。
结果显示,入院时和症状初显时的MPV与死亡密切相关。183名脓毒症患者中有41人(21.5%)死亡,他们的MPV高于幸存者(9.6毫微微升比9.19毫微微升)。在阳性血液培养物的情况下,这些值又有所上升(11.2毫微微升比9.7毫微微升)。另一方面,温度、白细胞计数、乳酸盐、前降钙素、C反应蛋白(CRP)值这些参数根本不能预测预后。科研人员因而确定,死亡或生存的最佳预测指标是取MPV的阈值为8.7毫微微升。该研究的论文在2012年6月于泰国曼谷举行的第15届国际传染病大会上做了展板宣讲。
“这一数值落在血小板体积正常范围的高端,但仍能很好地预测脓毒症患者的不良预后——也就是死亡,”领衔作者暨论文的宣讲人、传染病与热带医学科主任Thomas Grünewald博士说。“我们发现MPV值高于8.7的患者比MPV值低于8.7的患者更容易出现较差的预后(如死亡),比值比是3.2。”
MPV是电脑计算出来的血液中血小板的平均尺寸,一般是血液检验中的一项。因为当机体产生的血小板较多时血小板的平均尺寸也较大,所以MPV的检验结果可用于推测骨髓中产生的血小板或血小板的遭破坏问题。血小板体积的典型范围是9.7–12.8毫微微升,相当于直径2.65–2.9微米的球。
Related Links:
Klinikum St. Georg >> www.sanktgeorg.de
德国莱比锡圣乔治医院(www.sanktgeorg.de)的科研人员对191名有脓毒症记录的患者(年龄中位数为72岁,38%为妇女)进行了研究。科研人员前瞻性评估了入院时、脓毒症发作时、脓毒症确诊时以及病程中MPV作为预后标记物的作用。他们比较了这些数据与56名急性上消化道出血和下消化道出血患者(年龄中位数为74,45.5%为妇女)的数据,这56名患者是作为对照受试者。同时收集其它标准实验室生物标记物的数据和临床参数。
结果显示,入院时和症状初显时的MPV与死亡密切相关。183名脓毒症患者中有41人(21.5%)死亡,他们的MPV高于幸存者(9.6毫微微升比9.19毫微微升)。在阳性血液培养物的情况下,这些值又有所上升(11.2毫微微升比9.7毫微微升)。另一方面,温度、白细胞计数、乳酸盐、前降钙素、C反应蛋白(CRP)值这些参数根本不能预测预后。科研人员因而确定,死亡或生存的最佳预测指标是取MPV的阈值为8.7毫微微升。该研究的论文在2012年6月于泰国曼谷举行的第15届国际传染病大会上做了展板宣讲。
“这一数值落在血小板体积正常范围的高端,但仍能很好地预测脓毒症患者的不良预后——也就是死亡,”领衔作者暨论文的宣讲人、传染病与热带医学科主任Thomas Grünewald博士说。“我们发现MPV值高于8.7的患者比MPV值低于8.7的患者更容易出现较差的预后(如死亡),比值比是3.2。”
MPV是电脑计算出来的血液中血小板的平均尺寸,一般是血液检验中的一项。因为当机体产生的血小板较多时血小板的平均尺寸也较大,所以MPV的检验结果可用于推测骨髓中产生的血小板或血小板的遭破坏问题。血小板体积的典型范围是9.7–12.8毫微微升,相当于直径2.65–2.9微米的球。
Related Links:
Klinikum St. Georg >> www.sanktgeorg.de
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