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).
RCT Entities:
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).
Authors: Manuel D Cerqueira; Neil J Weissman; Vasken Dilsizian; Alice K Jacobs; Sanjiv Kaul; Warren K Laskey; Dudley J Pennell; John A Rumberger; Thomas Ryan; Mario S Verani Journal: Circulation Date: 2002-01-29 Impact factor: 29.690
Authors: Ph Gabriel Steg; Stefan K James; Dan Atar; Luigi P Badano; Carina Blömstrom-Lundqvist; Michael A Borger; Carlo Di Mario; Kenneth Dickstein; Gregory Ducrocq; Francisco Fernandez-Aviles; Anthony H Gershlick; Pantaleo Giannuzzi; Sigrun Halvorsen; Kurt Huber; Peter Juni; Adnan Kastrati; Juhani Knuuti; Mattie J Lenzen; Kenneth W Mahaffey; Marco Valgimigli; Arnoud van 't Hof; Petr Widimsky; Doron Zahger Journal: Eur Heart J Date: 2012-08-24 Impact factor: 29.983
Authors: R J Kim; D S Fieno; T B Parrish; K Harris; E L Chen; O Simonetti; J Bundy; J P Finn; F J Klocke; R M Judd Journal: Circulation Date: 1999-11-09 Impact factor: 29.690
Authors: Anja Wagner; Heiko Mahrholdt; Thomas A Holly; Michael D Elliott; Matthias Regenfus; Michele Parker; Francis J Klocke; Robert O Bonow; Raymond J Kim; Robert M Judd Journal: Lancet Date: 2003-02-01 Impact factor: 79.321
Authors: James C C Moon; Diego Perez De Arenaza; Andrew G Elkington; Anil K Taneja; Anna S John; Duolao Wang; Rajesh Janardhanan; Roxy Senior; Avijit Lahiri; Philip A Poole-Wilson; Dudley J Pennell Journal: J Am Coll Cardiol Date: 2004-08-04 Impact factor: 24.094