JAMA Intern Med:贫血老年男性进行睾酮治疗能否获益?

2017-05-22 吴星 环球医学

轻度贫血且睾酮水平较低的男性进行睾酮治疗能改善其贫血状况吗?2017年4月,发表在《JAMA Intern Med.》的一项双盲、安慰剂对照试验结果表明,睾酮水平较低和不明原因贫血老年男性进行睾酮治疗相比安慰剂更能纠正贫血。该治疗也比安慰剂更能纠正男性原因明确的贫血,如缺铁性贫血。重要性:三分之一的老年男性贫血找不出公认的病因。目的:考察年龄在65岁或以上,睾酮水平明确较低,原因不明贫血的男性进行

轻度贫血且睾酮水平较低的男性进行睾酮治疗能改善其贫血状况吗?2017年4月,发表在《JAMA Intern Med.》的一项双盲、安慰剂对照试验结果表明,睾酮水平较低和不明原因贫血老年男性进行睾酮治疗相比安慰剂更能纠正贫血。该治疗也比安慰剂更能纠正男性原因明确的贫血,如缺铁性贫血。

重要性:三分之一的老年男性贫血找不出公认的病因。

目的:考察年龄在65岁或以上,睾酮水平明确较低,原因不明贫血的男性进行睾酮治疗是否会增加血红蛋白浓度?

设计、地点和受试者:一项双盲、安慰剂对照试验,最小限度使用788例年龄在65岁或以上,平均睾酮水平低于275 ng/dL的男性。在788例受试者中,126例有贫血(血红蛋白≤12.7 g/dL),其中62例患者为不明原因贫血。2010年1月至2014年6月,在美国12个科研医疗中心开展该试验。

干预:睾酮辅助治疗(校正剂量以使睾酮水平维持在年轻男性的正常水平),或安慰剂辅助治疗,持续12个月。

主要结局和测量指标:与安慰剂相比,睾酮治疗可使原因不明贫血男性的血红蛋白的水平增加1.0 g/dL或更多。统计分析为使用校正平衡因素的logistic混合效果模型的意向治疗。

结果:受试男性的平均年龄为74.8岁,身体质量指数(BMI)(按照体重(kg)除以身高的平方(m2)计算)为30.7,84.9%为白种人。与安慰剂(15%)相比,睾酮治疗使更多比例(54%)原因不明贫血男性12个月血红蛋白水平比基线增加1.0 g/dL或以上(校正OR,31.5;95% CI,3.7~277.8;P?=0.002),以及与基线相比(22.2%)更多比例的男性在12个月时不再贫血(58.3%)相关(校正OR,17.0;95% CI,2.8~104.0;P?=0.002)。与安慰剂组(19%)相比,睾酮治疗也与更多比例(52%)原因明确贫血男性12个月时血红蛋白水平增加1.0 g/dL或以上相关(校正OR,8.2;95% CI,2.1~31.9;P?=0.003)。

结论和相关性:在睾酮水平较低的老年男性中,睾酮治疗显着增加原因不明贫血男性以及原因明确贫血男性的血红蛋白水平。从贫血的变化维度和修正可以看出,这些增加或具有临床意义,但总健康获益仍待建立。可以考虑在65岁或以上原因不明贫血和睾酮水平较低的男性中进行睾酮水平的测量。

意义:男性缺乏睾酮导致血红蛋白水平降低,有时会出现轻度贫血。纠正睾酮不足与增加血红蛋白水平,甚至在同时存在引发贫血的因素时,仍趋于纠正贫血相关。

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    学习

    0

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    2017-05-22 忠诚向上

    好好学习努力学习

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    2017-05-22 医无止境。

    非常感谢分享受益匪浅

    0

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