サトウ キヨウコ   SATO Kyoko
  佐藤 恭子
   所属   医学部 医学科(東医療センター)
   職種   講師
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Vagal and sympathetic heart rate and blood pressure control in adult onset PHOX2B mutation-confirmed congenital central hypoventilation syndrome.
掲載誌名 正式名:Clinical autonomic research : official journal ofthe Clinical Autonomic Research Society
略  称:Clin Auton Res
ISSNコード:0959-9851(Print)0959-9851(Linking)
掲載区分国外
巻・号・頁 17(3),177-85頁
著者・共著者 Diedrich André, Malow Beth A, Antic Nick A, Sato Kyoko, McEvoy R Doug, Mathias Christopher J, Robertson David, Berry-Kravis zabeth M, Weese-Mayer Debra E
発行年月 2007/06
概要 BACKGROUND:Children with Congenital Central Hypoventilation Syndrome (CCHS) typically present as newborns with alveolar hypoventilation. With the advent of genetic testing, parents of affected children and other unrelated adults, all heterozygous for the disease-defining PHOX2B polyalanine expansion mutation with the 20/25 genotype, are being identified in adulthood. Though children with PHOX2B mutation-confirmed CCHS demonstrate ANS dysregulation, including altered heart rate and blood pressure control, it is unknown if adults with CCHS have similarly affected autonomic function in blood pressure control.METHODS AND RESULTS:An autonomic profile of blood pressure control has been studied with recording of muscle sympathetic activity and spectral analysis of heart rate and blood pressure variability of one adult patient with alveolar hypoventilation and the 20/25 PHOX2B genotype. All parameters of heart rate variability were reduced. Cardiac baroreflex sensitivity was decreased. Sympathetic responses to Valsalva maneuver, hypoxemia, isometric exercise and cold pressor were blunted.CONCLUSION:In summary, we found a reduced cardiac baroreflex and a blunted sympathetic mediated response in the individual with adult-onset CCHS, possibly due to dysfunction in the afferent pathway. Our results confirm that PHOX2B affects the development of the autonomicCONCLUSION:nervous system, possibly causing absence of normal maturation of carotid body and visceral sensory ganglia and leading to autonomic dysfunction in adult-onset CCHS.
DOI 10.1007/s10286-007-0421-4
文献番号 17541758