Sevoflurane Alleviates Reperfusion Arrhythmia by Ameliorating TDR and MAPD90 in Isolated Rat Hearts after Ischemia-Reperfusion
Joint Authors
Wang, Guilong
Dai, Dongjun
Gao, Hong
Liu, Yanqiu
Wang, Zijun
Li, Huayu
Fu, Xiaokui
Source
Anesthesiology Research and Practice
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-09-22
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Objective.
To investigate the effect of sevoflurane on the monophasic action potentials (MAPs) in isolated rat hearts after ischemia-reperfusion.
Methods.
Twenty-four healthy SD male rats, weighing 280–320 g, were randomly divided into three groups after successful preparation of a Langendorff isolated heart perfusion model with a stabilization period perfusion of 15 min with Krebs–Henseleit (K–H) fluid (n = 8): the control group (group A, continuously perfused with K–H fluid for 105 min), the ischemia-reperfusion group (group B, continuously perfused with K–H fluid for 15 min, and then exposed to 60 min of global ischemia induced by Thomas solution followed by 30 min of reperfusion), and the sevoflurane group (group C, K–H fluid contained 1.0 MAC sevoflurane, and other procedures were same as in group B).
Heart rate (HR) and MAPs including time course (MAPD50 or MAPD90) of the epicardium (Epi) and endocardium (Endo) were recorded at the time of balance perfusion for 15 min (T0), continuous perfusion for 15 min (T1), reperfusion for 15 min/continuous perfusion for 105 min (T2), and reperfusion for 30 min/continuous perfusion for 120 min (T3), and the transmural dispersion of repolarization (TDR) was calculated.
The incidence of arrhythmia, time for restoration of spontaneous heart beat, and duration of arrhythmia were recorded during the period of reperfusion.
Results.
HR in group B and group C was lower at T2 and T3 than that in group A, while that in group B was significantly lower than that in group A at T2 and T3, and HR in group C was higher than that in group B at T2 and T3 (P<0.05).
There was no difference of TDR in each group at T0 and T1 (P>0.05), while TDR in group B was increased at T2 and T3 compared with that in group C and group A (P<0.05).
TDR in group C was decreased compared with that in group B at T2 and T3 (P<0.05), while there was no such difference between group C and group A (P>0.05).
The time for restoration of spontaneous heart beat and duration of arrhythmia in group C were shorter than those in group B (P<0.05), while cardiac arrhythmia scores in group B were higher than those in group C (P<0.05).
There was no difference of MAPD50 in each group (P>0.05).
The MAPD90 in group B was much longer than that in other groups at T2 and T3 (P<0.05), while there was no such difference between group C and group A (P>0.05).
The prolonged MAPD90 at T2 and T3 in group B strikingly differed from that at T0 and T1 (P<0.05).
Nevertheless, there was no such difference in other groups at different time points (P>0.05).
Conclusion.
Sevoflurane alleviates reperfusion arrhythmia induced by myocardial ischemia-reperfusion through the shortening of MPAD90 in isolated rat hearts.
American Psychological Association (APA)
Wang, Guilong& Dai, Dongjun& Gao, Hong& Liu, Yanqiu& Wang, Zijun& Li, Huayu…[et al.]. 2019. Sevoflurane Alleviates Reperfusion Arrhythmia by Ameliorating TDR and MAPD90 in Isolated Rat Hearts after Ischemia-Reperfusion. Anesthesiology Research and Practice،Vol. 2019, no. 2019, pp.1-5.
https://search.emarefa.net/detail/BIM-1122323
Modern Language Association (MLA)
Wang, Guilong…[et al.]. Sevoflurane Alleviates Reperfusion Arrhythmia by Ameliorating TDR and MAPD90 in Isolated Rat Hearts after Ischemia-Reperfusion. Anesthesiology Research and Practice No. 2019 (2019), pp.1-5.
https://search.emarefa.net/detail/BIM-1122323
American Medical Association (AMA)
Wang, Guilong& Dai, Dongjun& Gao, Hong& Liu, Yanqiu& Wang, Zijun& Li, Huayu…[et al.]. Sevoflurane Alleviates Reperfusion Arrhythmia by Ameliorating TDR and MAPD90 in Isolated Rat Hearts after Ischemia-Reperfusion. Anesthesiology Research and Practice. 2019. Vol. 2019, no. 2019, pp.1-5.
https://search.emarefa.net/detail/BIM-1122323
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122323