ハセガワ　ヒサヤ   HASEGAWA Hisaya   長谷川　久弥    所属   医学部 医学科（附属足立医療センター）    職種   特任教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Breathing intolerance index in healthy infants.
掲載誌名	正式名：Pediatrics international : official journal of the Japan Pediatric Society 略　 称：Pediatr Int ISSNコード：1442200X/13288067
掲載区分	国外
巻・号・頁	56(2),pp.227-9
著者・共著者	Hasegawa Hisaya, Henmi Nobuhide, Tsuruta Shio, Miyoshi Yoshitaka, Yamada Yousuke, Muto Junichi, Wasa Masanori
発行年月	2014/04
概要	BACKGROUND:The breathing intolerance index (BITI) is used to justify ventilator use in adult patients with pulmonary or chest wall disease. BITI in ventilated patients is mostly ≥0.15. The mean BITI of healthy adults in the upright sitting position and the supine position is 0.050 ± 0.009 and 0.057 ± 0.016, respectively. The aim of this study was to establish a normal BITI in infants.METHODS:Thirty healthy infants were examined in the supine position. BITI was defined as BITI = (Ti/Ttot) × (TV/VC), where Ti is inspiratory time, Ttot is total breath cycle duration, TV is tidal volume, and VC is vital capacity. TV and Ti/Ttot were obtained from tidal breathing at rest and VC was obtained spirometrically. BITI was calculated using customized software.RESULTS:The mean ± SD BITI of 30 healthy infants in the supine position was 0.120 ± 0.013. The BITI of infants was significantly higher than that of adults.CONCLUSIONS:BITI was measured in healthy infants. Further evaluation is needed to determine the significance and usefulness of BITI.
DOI	10.1111/ped.12247
PMID	24274748