2026-04-14T04:28:17Zhttps://recercat.cat/oai/request

oai:recercat.cat:10230/259432025-12-22T13:41:48Zcom_2072_6col_2072_452952

Lateral MI Explains the Presence of Prominent R Wave (R ≥ S) in V1. Goldwasser, Diego Senthilkumar, Annamalai Bayés-De-Luna, Antoni Elosua Llanos, Roberto Carreras, Francesc Pons-Llado, Guillem Kim, Raymond Infart de miocardi Electrocardiografia AIMS: It is necessary to clarify if the presence of a prominent R wave in V1 , in post-myocardial infarction (MI) patients, is due to the involvement of the posterior wall (currently inferobasal segment) or the lateral wall (as has been demonstrated recently by electrocardiographic contrast-enhanced cardiac magnetic resonance [ECG-CE-CMR] correlations studies). METHODS: In 155 patients with inferolateral zone MI, as detected by CE-CMR, the following ECG parameters were evaluated and correlated with MI location according to CE-CMR: R/S ratio in V1 ≥ 1 (classic criteria for posterior MI), R/S ratio in V1 ≥ 0.5, and R in V1 ≥ 3 mm. RESULTS: R/S ≥ 1 criterion: Present in 20 cases: 3 of lateral MI, 17 of inferolateral MI, 0 of inferior MI. Absent in 135 cases, 81 of lateral/inferolateral MI (28/53), 54 of inferior MI (SE 19.8%, SP 100%). R/S ≥ 0.5 criterion: Present in 47 cases: 6 of lateral MI, 39 of inferolateral MI, 2 of inferior MI. Absent in 108 cases, 56 of lateral/inferolateral MI (25/31), 52 of inferior MI (SE 44.6%, SP 96.4%). R ≥ 3 mm criterion: Present in 30 cases: 5 of IM lateral, 23 of inferolateral MI, 2 of inferior MI. Absent in 125 cases, 73 lateral/inferolateral MI (26/47), 52 inferior MI (SE 27.7%, SP 96.4%). CONCLUSIONS: The presence of prominent the R wave in V1 is due to the lateral MI and not to the involvement of inferobasal segment of inferior wall (old posterior wall). 2016-02-25T08:54:46Z 2016-11-30T03:00:05Z 2015 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Annals of Noninvasive Electrocardiology. 2015 Nov;20(6):570-7 c)2015 Wiley -Blackwell. The definitive version is available online at : http://dx.doi.org/10.1111/anec.12260 info:eu-repo/semantics/openAccess Wiley