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Pancreatology: 胰岛自体移植 (TPIAT) 全胰腺切除患者术后第一年骨密度会明显降低

2021-12-27 MedSci原创 MedSci原创

慢性胰腺炎(Chronic Pancreatitis,CP)发病率逐年增加,是各种病因引起胰腺组织和功能不可逆改变的慢性炎症性疾病。

慢性胰腺炎(CP)会导致胰腺内分泌和外分泌功能的丧失,并造成严重的后遗症,并且会对胰腺造成不可逆转的损害。与CP相关的胰腺外分泌不足(EPI)导致吸收不良、体重减轻和25-羟基维生素D(25(OH)D)的缺乏。这反过来又会影响骨骼健康,增加骨折的风险。骨矿物质密度(BMD)和骨矿物质含量(BMC)是衡量骨骼健康的标准,可以使用双能X射线吸收仪(DXA)进行测量。多项研究发现患有CP的病人的BMD和BMC减少,骨折风险增加,有研究显示CP患者发生低创伤性骨折的几率高出2.4倍。

在严重的CP病例中,可以进行全胰腺切除术加胰岛自体移植(TPIAT)来缓解慢性腹痛,同时防止出现严重的胰岛素性糖尿病。在TPIAT中,胰腺被完全切除,同时也会切除部分十二指肠,并进行Roux-en-Y十二指肠空肠吻合,由此产生的EPI和改变的胃肠道解剖结构可能会加剧吸收不良和25(OH)D缺乏,造成BMD低下的风险。目前,TPIAT对骨骼健康的影响还没有被研究。因此,本研究的目的是要确定骨骼健康是否受到TPIAT对CP患者的不利影响。

 

为此,研究人员使用双能X射线吸收仪(DXA,n = 78,TPIAT前,n=65,TPIAT前和后12个月配对)测量了78名患者的全身、腰椎、左右髋关节的BMD、BMD Z-score和骨矿物质含量(BMC),并使用配对和双样本t检验、线性回归和Fisher's精确检验来测试与临床病史包括年龄、吸烟状况和药物的关系。还评估了与骨骼健康有关的实验室指标。

 

研究结果显示在TPIAT治疗前DXA检测的患者中,12%的患者BMD较低(Z-core≤-2)。从TPIAT前到TPIAT后12个月,BMD、BMD Z-score和BMC都有所下降。BMD下降了1.7%-4.1%,臀部数值的变化最大。在调整了瘦肉和脂肪体重的变化后,DXA的变化在全身和臀部仍然很明显。TPIAT后12个月,血清中羧基末端胶原交联端肽和碱性磷酸酶增加,表明骨重塑的程度可能增加了。然而,患者全是四个区域的BMD、BMD Z-score和BMC在12个月和18个月之间都没有变化(P>0.6)。

 

研究最后作者说道:接受TPIAT治疗的CP患者在TPIAT后第一年身体、腰部和髋部的BMD会有所下降,但这些情况在TPIAT后12至18个月内逐渐稳定下来,不再变化。

原始出处:

Jillian K.Wothe. Et al. Reduced bone mineral density in the first year after total pancreatectomy with islet autotransplantation (TPIAT). Pancreatology. 2021.

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    2022-03-26 baoya
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    2021-12-28 HinsMax
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    2021-12-27 王江军

    学习了

    0

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