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Effect of remote ischaemic preconditioning on myocardial injury in patients undergoing coronary artery bypass graft surgery: a randomised controlled trial
Oleh:
Hausenloy, Derek J.
;
Mwamure, Peter K.
;
Venugopal, Vinod
;
Harris, Joanne
;
Barnard, Matthew
;
Grundy, Ernie
;
and Others
Jenis:
Article from Journal - ilmiah internasional
Dalam koleksi:
The Lancet (keterangan: ada di Proquest) vol. 370 no. 9587 (Aug. 2007)
,
page 575.
Ketersediaan
Perpustakaan FK
Nomor Panggil:
L01.K.2007.04
Non-tandon:
1 (dapat dipinjam: 0)
Tandon:
tidak ada
Lihat Detail Induk
Isi artikel
Summary Background Whether remote ischaemic preconditioning, an intervention in which brief ischaemia of one tissue or organ protects remote organs from a sustained episode of ischaemia, is beneficial for patients undergoing coronary artery bypass graft surgery is unknown. We did a single-blinded randomised controlled study to establish whether remote ischaemic preconditioning reduces myocardial injury in these patients. Methods 57 adult patients undergoing elective coronary artery bypass graft surgery were randomly assigned to either a remote ischaemic preconditioning group (n=27) or to a control group (n=30) after induction of anaesthesia. Remote ischaemic preconditioning consisted of three 5-min cycles of right upper limb ischaemia, induced by an automated cuff-inflator placed on the upper arm and inflated to 200 mm Hg, with an intervening 5 min of reperfusion during which the cuff was deflated. Serum troponin-T concentration was measured before surgery and at 6, 12, 24, 48, and 72 h after surgery. Analysis was by intention to treat. This trial is registered with ClinicalTrials.gov, number NCT00397163. Findings Remote ischaemic preconditioning significantly reduced overall serum troponin-T release at 6, 12, 24, and 48 h after surgery. The total area under the curve was reduced by 43%, from 36·12 µg/L (SD 26·08) in the control group to 20·58 µg/L (9·58) in the remote ischaemic preconditioning group (mean difference 15·55 [SD 5·32]; 95% CI 4·88–26·21; p=0·005). Interpretation We have shown that adult patients undergoing elective coronary artery bypass graft surgery at a single tertiary centre could benefit from remote ischaemic preconditioning, using transient upper limb ischaemia.
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