start-ver=1.4
cd-journal=joma
no-vol=105
cd-vols=
no-issue=6
article-no=
start-page=812
end-page=818
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=201706
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Predictors of vasovagal reactions during preoperative autologous blood donation: a single-institution analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Studies examining risk factors associated with vasovagal reactions (VVRs) during autologous blood donations, especially in younger subjects, have been limited. The aim of the present study was to define risk factors for VVRs during preoperative autologous blood donation in patients, including those younger than 18 years old. We retrospectively analyzed 4192 autologous, preoperative blood donations between 2007 and 2015 at Okayama University Hospital. Eighty-seven (2.08%) of the patients experienced VVRs. VVRs occurred approximately three times as often in patients 0-17 years old (16/320, 5.0%) than in patients 18 years and older (71/3872, 1.8%). In particular, VVRs occurred more frequently in those 10-13 years old, and decreased with older age (P = 0.006). In a univariate analysis, younger age, lower body mass index, lower systolic blood pressure, lower body weight, lower total blood volume, female gender, first-time collection, and higher heart rate were associated with a higher incidence of VVRs. In a multivariate analysis, lower systolic blood pressure (P < 0.001), higher heart rate (P = 0.007), and first-time collection (P = 0.015), remained independent predictors of VVRs. These results emphasize the need for careful attention during blood collection.
en-copyright=
kn-copyright=

en-aut-name=NishimoriHisakazu
en-aut-sei=Nishimori
en-aut-mei=Hisakazu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FujiiNobuharu
en-aut-sei=Fujii
en-aut-mei=Nobuharu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=FujiiKeiko
en-aut-sei=Fujii
en-aut-mei=Keiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=IkedaTohru
en-aut-sei=Ikeda
en-aut-mei=Tohru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=AsanoNaomi
en-aut-sei=Asano
en-aut-mei=Naomi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=OgoHiroaki
en-aut-sei=Ogo
en-aut-mei=Hiroaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=YamakawaMiwa
en-aut-sei=Yamakawa
en-aut-mei=Miwa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=TakagiNaoe
en-aut-sei=Takagi
en-aut-mei=Naoe
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=OtsukaFumio
en-aut-sei=Otsuka
en-aut-mei=Fumio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

en-aut-name=IkedaKazuma
en-aut-sei=Ikeda
en-aut-mei=Kazuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=

affil-num=1
en-affil=Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=2
en-affil= Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=3
en-affil= Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=4
en-affil= Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=5
en-affil= Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=6
en-affil= Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=7
en-affil=Department of Nursing, Okayama University Hospital
kn-affil=

affil-num=8
en-affil=Department of Nursing, Okayama University Hospital
kn-affil=

affil-num=9
en-affil=Department of Transfusion Medicine, Okayama University Hospital
kn-affil=

affil-num=10
en-affil=Department of Transfusion Medicine, Okayama University Hospital
kn-affil=
en-keyword=Autologous blood donation
kn-keyword=Autologous blood donation
en-keyword=Vasovagal reactions
kn-keyword=Vasovagal reactions
END