|Midregional Pro-Adrenomedullin as a Predictor for Therapeutic Response to Midodrine Hydrochloride in Children With Postural Orthostatic Tachycardia Syndrome|
|Zhang, Fengwen1; Li, Xueying2; Ochs, Todd3; Chen, Li1; Liao, Ying1; Tang, Chaoshu4; Jin, Hongfang1; Du, Junbao1,5|
|关键词||Children Midodrine Hydrochloride Midregional Fragment Of Pro-adrenomedullin Postural Orthostatic Tachycardia Syndrome|
|刊名||JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY|
|WOS标题词||Science & Technology|
|类目[WOS]||Cardiac & Cardiovascular Systems|
|研究领域[WOS]||Cardiovascular System & Cardiology|
|关键词[WOS]||SYNCOPE ; PLASMA ; MULTICENTER ; PROTEIN ; RATS|
Objectives This study was designed to explore the predictive value of the midregional fragment of pro-adrenomedullin (MR-proADM) in assessing the therapeutic efficacy of midodrine hydrochloride for children with postural orthostatic tachycardia syndrome (POTS).
Background Midodrine hydrochloride is an important therapeutic option for children with POTS. However, there has not been any method to predict response to the drug. The MR-proADM is produced in equimolar amounts to adrenomedullin (ADM), and directly reflects levels of the rapidly degraded active peptide, ADM.
Methods Fifty-seven children with POTS were designated as the POTS group. Twenty healthy children served as the control group. The children in the POTS group received midodrine hydrochloride treatment. The plasma concentration of MR-proADM was measured, using a sandwich immunoluminometric assay. A receiver-operating characteristic curve was used to explore the predictive value of MR-proADM.
Results Plasma levels of MR-proADM were significantly higher in children with POTS (75.0 [62.5 to 96.0] pg/ml) than in the control group (58.5 [50.3 to 69.0] pg/ml). Plasma levels of MR-proADM in responders to midodrine hydrochloride was significantly higher than that of nonresponders (76.0 [66.0 to 91.0] pg/ml vs. 59.0 [54.0 to 65.5] pg/ml, p < 0.01]. A receiver-operating characteristic curve on the predictive value of MR-proADM showed that the area under the curve was 0.879 with a 95% confidence interval of 0.761 to 0.997. Using a cutoff value for MR-proADM of 61.5 pg/ml produced both high sensitivity (100%) and specificity (71.6%) in predicting the efficacy of midodrine hydrochloride therapy for treating POTS.
Conclusions MR-proADM can help guide midodrine hydrochloride therapy in the management of POTS in children. (J Am Coll Cardiol 2012;60:315-20) (C) 2012 by the American College of Cardiology Foundation
|作者单位||1.Peking Univ, Dept Stat, Hosp 1, Beijing 100034, Peoples R China|
2.Northwestern Univ, Chicago, IL 60611 USA
3.Minist Educ, Key Lab Mol Cardiol, Beijing, Peoples R China
4.Peking Univ, Dept Pediat, Hosp 1, Beijing 100034, Peoples R China
5.Peking Univ, Dept Physiol & Pathophysiol, Hlth Sci Ctr, Beijing 100034, Peoples R China
|Zhang, Fengwen,Li, Xueying,Ochs, Todd,et al. Midregional Pro-Adrenomedullin as a Predictor for Therapeutic Response to Midodrine Hydrochloride in Children With Postural Orthostatic Tachycardia Syndrome[J]. JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY,2012,60(4):315-320.|
|APA||Zhang, Fengwen.,Li, Xueying.,Ochs, Todd.,Chen, Li.,Liao, Ying.,...&Du, Junbao.(2012).Midregional Pro-Adrenomedullin as a Predictor for Therapeutic Response to Midodrine Hydrochloride in Children With Postural Orthostatic Tachycardia Syndrome.JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY,60(4),315-320.|
|MLA||Zhang, Fengwen,et al."Midregional Pro-Adrenomedullin as a Predictor for Therapeutic Response to Midodrine Hydrochloride in Children With Postural Orthostatic Tachycardia Syndrome".JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY 60.4(2012):315-320.|
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