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Automated BET, Blood Pressure, and IVH
Author(s) -
Funato Masahisa,
Shimada Seiichi,
Tamai Hiroshi,
Taki Hideo,
Yoshioka Yasushi
Publication year - 1988
Publication title -
pediatrics international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.49
H-Index - 63
eISSN - 1442-200X
pISSN - 1328-8067
DOI - 10.1111/j.1442-200x.1988.tb01583.x
Subject(s) - medicine , intraventricular hemorrhage , exacerbation , blood pressure , birth weight , exchange transfusion , coefficient of variation , anesthesia , low birth weight , pediatrics , cardiology , surgery , gestational age , pregnancy , statistics , genetics , mathematics , biology
An automated apparatus for blood exchange transfusion (BET) has been devised with a two‐site technique for peripheral artery and vein, utilizing an Atom infusion pump. With this apparatus, we have successfully performed exchange transfusions 189 times in 110 infants with birth weights ranging from 530 g to 4,000 g within the past four years. Evaluating the influence of this method on the circulatory system, the variation in blood pressure (BP) during exchange transfusions was consecutively measured 29 times in 16 infants (14 cases by indirect method and two cases by direct method). The BP was very stable, without any significant change in the mean and the coefficient variation (CV) before, during and after the transfusion (Systolic BP: 59.3±11.9, 60.1±11.9, and 60.3±12.1 mmHg; p: n. s., CV: 7.8±4.1, 8.1±3.8, and 7.7±4.1%; p: n. s., respectively). Further, in evaluating the influence of the method on the occurrence of intraventricular hemorrhage (IVH), brain ultrasonography was performed in 20 extremely premature infants of less than 1,500 g in birth weight prior to and following the exchange transfusion. There was no significant occurrence or exacerbation of IVH. by the method itself (IVH Grade 0: 15 cases, Grade 1: 4 cases, Grade 2: 1 case). We believe that this automated method may be more stable as it relates to variation of systemic BP and that the occurrence of IVH especially in extremely premature infants may be less likely with the automated method than with the use of Diamond's method, since it is isovolemic in procedure.