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Detection of right ventricular ischaemia during coronary surgery by means of a right precordial lead

Published online by Cambridge University Press:  04 August 2006

L. Pagani ,
M. Simeone ,
G. Franciosi ,
M. Cao ,
F. Loria  and
G. Pelosi
L. Pagani
Affiliation:
Servizio di Anestesia e Rianimazione II, Ospedale Maggiore della Carit-Novara, Italy
M. Simeone
Affiliation:
Servizio di Anestesia e Rianimazione II, Ospedale Maggiore della Carit-Novara, Italy
G. Franciosi
Affiliation:
Divisione di Cardiochirurgia, Ospedale Maggiore della Carità-Novara, Italy
M. Cao
Affiliation:
Divisione di Cardiochirurgia, Ospedale Maggiore della Carità-Novara, Italy
F. Loria
Affiliation:
Servizio di Anestesia e Rianimazione II, Ospedale Maggiore della Carit-Novara, Italy
G. Pelosi
Affiliation:
Università degli Studi di Torino, Cattedra di Anestesia e Rianimazione, Facoltà di Medicina e Chirurgia di Novara, Italy
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Abstract

This study was designed to determine the intra-operative incidence of right-sided ventricular ischaemia and any association with left ventricular ischaemia. In 60 patients, undergoing coronary artery bypass grafting surgery, a right-sided precordial lead V5R was used. ST segment deviation of more than 1 mm in V5R was considered significant for myocardial ischaemia. Right ventricular ischaemia occurred in 14 patients(23.3%) but was not associated with left ventricular inferior wall ischaemia. In 4 patients (6.6%) presenting with right ventricular ischaemia, ischaemia of the left inferior wall also developed but in all cases was transient and disappeared by the end of surgery. No myocardial infarction was detected in the post-operative period. The present study showed that the use of a right-sided lead may improve intra-operative electrocardiographic monitoring, by revealing ischaemia in those patients in whom ECG abnormalities were not detected by conventional leads. The transient right ventricular ischaemia recorded in this study was probably related to a reduced hypothermic protection of the right ventricle during aortic cross clamping.

Keywords

ischaemiaright ventriclecoronary surgery
Type
Original Article
Information
European Journal of Anaesthesiology , Volume 13 , Issue 5 , May 1996 , pp. 511 - 514
Copyright
1996 European Society of Anaesthesiology

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